Add password reset (#3)

2018-10-27 09:33:28 +00:00 · 2018-10-27 09:33:28 +00:00 · 0cfea682ea
parent 95197ec6ed
commit 0cfea682ea
332 changed files with 53283 additions and 15576 deletions
--- a/10
+++ b/10
@ -16,7 +16,7 @@ endif
 GOFILES := $(shell find . -name "*.go" -type f ! -path "./vendor/*" ! -path "*/bindata.go")
 GOFMT ?= gofmt -s

-GOFLAGS := -i -v
+GOFLAGS := -v
 EXTRA_GOFLAGS ?=

 LDFLAGS := -X "main.Version=$(shell git describe --tags --always | sed 's/-/+/' | sed 's/^v//')" -X "main.Tags=$(TAGS)"
@ -49,7 +49,7 @@ all: build

 .PHONY: clean
 clean:
-	go clean -i ./...
+	go clean ./...
 	rm -rf $(EXECUTABLE) $(DIST) $(BINDATA)

 .PHONY: test
@ -133,6 +133,8 @@ release-copy:
 	$(foreach file,$(wildcard $(DIST)/binaries/$(EXECUTABLE)-*),cp $(file) $(DIST)/release/$(notdir $(file));)
 	mkdir $(DIST)/release/public
 	cp public/ $(DIST)/release/ -R
+	mkdir $(DIST)/release/templates
+	cp templates/ $(DIST)/templates/ -R

 .PHONY: release-check
 release-check:
@ -141,7 +143,7 @@ release-check:

 .PHONY: release-os-package
 release-os-package:
-	$(foreach file,$(filter-out %.sha256,$(wildcard $(DIST)/release/$(EXECUTABLE)-*)),mkdir $(file)-full;mv $(file) $(file)-full/;	mv $(file).sha256 $(file)-full/; cp config.yml.sample $(file)-full/config.yml; cp $(DIST)/release/public $(file)-full/ -R; cp LICENSE $(file)-full/; )
+	$(foreach file,$(filter-out %.sha256,$(wildcard $(DIST)/release/$(EXECUTABLE)-*)),mkdir $(file)-full;mv $(file) $(file)-full/;	mv $(file).sha256 $(file)-full/; cp config.yml.sample $(file)-full/config.yml; cp $(DIST)/release/public $(file)-full/ -R; cp $(DIST)/release/templates $(file)-full/ -R; cp LICENSE $(file)-full/; )
 	rm $(DIST)/release/public -rf

 .PHONY: release-zip
@ -190,4 +192,4 @@ gocyclo-check:
 	@hash gocyclo > /dev/null 2>&1; if [ $$? -ne 0 ]; then \
 		go get github.com/fzipp/gocyclo; \
 	fi
-	for S in $(GOFILES); do gocyclo -over 14 $$S || exit 1; done;
+	for S in $(GOFILES); do gocyclo -over 14 $$S || exit 1; done;
--- a/REST-Tests/users.http
+++ b/REST-Tests/users.http
@ -21,4 +21,24 @@ Content-Type: application/json
  "new_password": "1234"
 }

-###
+### Request a password to reset a password
+POST http://localhost:8080/api/v1/user/password/token
+Content-Type: application/json
+Accept: application/json
+
+{
+  "user_name": "user"
+}
+
+### Request a password to reset a password
+POST http://localhost:8080/api/v1/user/password/reset
+Content-Type: application/json
+Accept: application/json
+
+{
+  "user_id": 1,
+  "token": "syPYBkzonBbWEXtHQlMDwDMWfsGgkeHWYRBncIDtVBrizTHBGDPnNbpjwtKtKfutUuzCTfQcXLTFgVTzDsmHcPxvrQxlKTmjPyyDLEEwnHkRntsweFyrymjfhiqZwwPCsPLegtnruaaFerjPNgmCXPVjsSGSDWjQcJsVgkljgjeeRwowxYQxMZeLlVHitEHkNfXnXUeEQmPmGLwPuGBGEXhHJpsckYwkOQTulJzDSrsynzNaHRbxQfdxthToFOzidOKzJKdesQKIocTfSDPXzvVKdlSPkZRiyNIbFxoiIWRGQFSHltmqzDwxudwcDbMMwaLQloUWZahhfkFRPKLoFQQezPgYecIihrewglYvQOZfNISKAWyHyWfOBWAkrtGODpuJlTLZwImYzNSX",
+  "new_password": "1234"
+}
+
+###
--- a/config.yml.sample
+++ b/config.yml.sample
@ -5,6 +5,8 @@ service:
  JWTSecret: "cei6gaezoosah2bao3ieZohkae5aicah"
  # The interface on which to run the webserver
  interface: ":3456"
+  # The URL of the frontend, used to send password reset emails.
+  frontendurl: ""

 database:
  # Database type to use. Supported types are mysql and sqlite.
@ -33,3 +35,17 @@ cache:
  redishost: 'localhost:6379'
  # When using redis, this is the password used to authenicate against the redis server
  redispassword: ''
+
+mailer:
+  # SMTP Host
+  host: ''
+  # SMTP Host port
+  port: 587
+  # SMTP username
+  username: 'user'
+  # SMTP password
+  password: ''
+  # Wether to skip verification of the tls certificate on the server
+  skiptlsverify: false
+  # The default from address when sending emails
+  fromemail: 'mail@vikunja'
--- a/docs/config.md
+++ b/docs/config.md
@ -29,6 +29,8 @@ service:
  JWTSecret: "cei6gaezoosah2bao3ieZohkae5aicah"
  # The interface on which to run the webserver
  interface: ":3456"
+  # The URL of the frontend, used to send password reset emails.
+  frontendurl: ""

 database:
  # Database type to use. Supported types are mysql and sqlite.
@ -60,4 +62,22 @@ cache:
  redishost: 'localhost:6379'
  # When using redis, this is the password used to authenicate against the redis server
  redispassword: ''
+
+mailer:
+  # SMTP Host
+  host: ""
+  # SMTP Host port
+  port: 587
+  # SMTP username
+  username: "user"
+  # SMTP password
+  password: ""
+  # Wether to skip verification of the tls certificate on the server
+  skiptlsverify: false
+  # The default from address when sending emails
+  fromemail: "mail@vikunja"
+  # The length of the mail queue.
+  queuelength: 100
+  # The timeout in seconds after which the current open connection to the mailserver will be closed.
+  queuetimeout: 30
 ```
--- a/docs/errors.md
+++ b/docs/errors.md
@ -9,7 +9,8 @@ This document describes the different errors Vikunja can return.
 | 1004 | 400 | No username and password specified. |
 | 1005 | 404 | The user does not exist. |
 | 1006 | 400 | Could not get the user id. |
-| 1007 | 409 | Cannot delete the last user on the system. |
+| 1008 | 412 | No password reset token provided. |
+| 1009 | 412 | Invalid password reset token. |
 | 2001 | 400 | ID cannot be empty or 0. |
 | 3001 | 404 | The list does not exist. |
 | 3004 | 403 | The user needs to have read permissions on that list to perform that action. |
--- a/go.mod
+++ b/go.mod
@ -6,29 +6,45 @@ require (
 	github.com/denisenkom/go-mssqldb v0.0.0-20180901172138-1eb28afdf9b6 // indirect
 	github.com/dgrijalva/jwt-go v0.0.0-20170608005149-a539ee1a749a
 	github.com/garyburd/redigo v1.6.0 // indirect
+	github.com/go-openapi/analysis v0.17.2 // indirect
+	github.com/go-openapi/errors v0.17.2 // indirect
+	github.com/go-openapi/inflect v0.17.2 // indirect
+	github.com/go-openapi/loads v0.17.2 // indirect
+	github.com/go-openapi/runtime v0.17.2 // indirect
+	github.com/go-openapi/spec v0.17.2 // indirect
+	github.com/go-openapi/strfmt v0.17.2 // indirect
+	github.com/go-openapi/swag v0.17.2 // indirect
+	github.com/go-openapi/validate v0.17.2 // indirect
 	github.com/go-sql-driver/mysql v0.0.0-20171007150158-ee359f95877b
+	github.com/go-swagger/go-swagger v0.17.2 // indirect
 	github.com/go-xorm/builder v0.0.0-20170519032130-c8871c857d25 // indirect
 	github.com/go-xorm/core v0.5.8
 	github.com/go-xorm/tests v0.5.6 // indirect
 	github.com/go-xorm/xorm v0.0.0-20170930012613-29d4a0330a00
 	github.com/go-xorm/xorm-redis-cache v0.0.0-20180727005610-859b313566b2
 	github.com/google/go-cmp v0.2.0 // indirect
+	github.com/gorilla/handlers v1.4.0 // indirect
 	github.com/imdario/mergo v0.3.6
+	github.com/jessevdk/go-flags v1.4.0 // indirect
 	github.com/joho/godotenv v1.3.0 // indirect
+	github.com/kr/pretty v0.1.0 // indirect
 	github.com/labstack/echo v3.1.0+incompatible
-	github.com/labstack/gommon v0.0.0-20170925052817-57409ada9da0 // indirect
+	github.com/labstack/gommon v0.0.0-20170925052817-57409ada9da0
 	github.com/lib/pq v1.0.0 // indirect
 	github.com/mattn/go-colorable v0.0.0-20170816031813-ad5389df28cd // indirect
 	github.com/mattn/go-isatty v0.0.0-20170925054904-a5cdd64afdee // indirect
 	github.com/mattn/go-oci8 v0.0.0-20181011085415-1a014d1384b5 // indirect
 	github.com/mattn/go-sqlite3 v1.9.0
 	github.com/op/go-logging v0.0.0-20160211212156-b2cb9fa56473
-	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/spf13/viper v1.2.0
-	github.com/stretchr/testify v0.0.0-20171231124224-87b1dfb5b2fa
+	github.com/stretchr/testify v1.2.2
+	github.com/toqueteos/webbrowser v1.1.0 // indirect
 	github.com/valyala/bytebufferpool v1.0.0 // indirect
 	github.com/valyala/fasttemplate v0.0.0-20170224212429-dcecefd839c4 // indirect
 	github.com/ziutek/mymysql v1.5.4 // indirect
 	golang.org/x/crypto v0.0.0-20170930174604-9419663f5a44
+	golang.org/x/tools v0.0.0-20181026183834-f60e5f99f081 // indirect
+	gopkg.in/alexcesaro/quotedprintable.v3 v3.0.0-20150716171945-2caba252f4dc // indirect
+	gopkg.in/gomail.v2 v2.0.0-20160411212932-81ebce5c23df
 	gopkg.in/testfixtures.v2 v2.4.5
 )
--- a/go.sum
+++ b/go.sum
@ -2,18 +2,60 @@ cloud.google.com/go v0.30.0 h1:xKvyLgk56d0nksWq49J0UyGEeUIicTl4+UBiX1NPX9g=
 cloud.google.com/go v0.30.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/PuerkitoBio/purell v1.1.0 h1:rmGxhojJlM0tuKtfdvliR84CFHljx9ag64t2xmVkjK4=
+github.com/PuerkitoBio/purell v1.1.0/go.mod h1:c11w/QuzBsJSee3cPx9rAFu61PvFxuPbtSwDGJws/X0=
+github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578 h1:d+Bc7a5rLufV/sSk/8dngufqelfh6jnri85riMAaF/M=
+github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578/go.mod h1:uGdkoq3SwY9Y+13GIhn11/XLaGBb4BfwItxLd5jeuXE=
+github.com/asaskevich/govalidator v0.0.0-20180720115003-f9ffefc3facf h1:eg0MeVzsP1G42dRafH3vf+al2vQIJU0YHX+1Tw87oco=
+github.com/asaskevich/govalidator v0.0.0-20180720115003-f9ffefc3facf/go.mod h1:lB+ZfQJz7igIIfQNfa7Ml4HSf2uFQQRzpGGRXenZAgY=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/denisenkom/go-mssqldb v0.0.0-20180901172138-1eb28afdf9b6 h1:BZGp1dbKFjqlGmxEpwkDpCWNxVwEYnUPoncIzLiHlPo=
 github.com/denisenkom/go-mssqldb v0.0.0-20180901172138-1eb28afdf9b6/go.mod h1:xN/JuLBIz4bjkxNmByTiV1IbhfnYb6oo99phBn4Eqhc=
 github.com/dgrijalva/jwt-go v0.0.0-20170608005149-a539ee1a749a h1:nmYyGtn9AO7FCeZ2tHr1ZWjJAHi6SfGB3o80F8o7EbA=
 github.com/dgrijalva/jwt-go v0.0.0-20170608005149-a539ee1a749a/go.mod h1:E3ru+11k8xSBh+hMPgOLZmtrrCbhqsmaPHjLKYnJCaQ=
+github.com/docker/go-units v0.3.3/go.mod h1:fgPhTUdO+D/Jk86RDLlptpiXQzgHJF7gydDDbaIK4Dk=
 github.com/fsnotify/fsnotify v1.4.7 h1:IXs+QLmnXW2CcXuY+8Mzv/fWEsPGWxqefPtCP5CnV9I=
 github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
 github.com/garyburd/redigo v1.6.0 h1:0VruCpn7yAIIu7pWVClQC8wxCJEcG3nyzpMSHKi1PQc=
 github.com/garyburd/redigo v1.6.0/go.mod h1:NR3MbYisc3/PwhQ00EMzDiPmrwpPxAn5GI05/YaO1SY=
+github.com/globalsign/mgo v0.0.0-20180905125535-1ca0a4f7cbcb h1:D4uzjWwKYQ5XnAvUbuvHW93esHg7F8N/OYeBBcJoTr0=
+github.com/globalsign/mgo v0.0.0-20180905125535-1ca0a4f7cbcb/go.mod h1:xkRDCp4j0OGD1HRkm4kmhM+pmpv3AKq5SU7GMg4oO/Q=
+github.com/go-openapi/analysis v0.0.0-20180825180245-b006789cd277/go.mod h1:k70tL6pCuVxPJOHXQ+wIac1FUrvNkHolPie/cLEU6hI=
+github.com/go-openapi/analysis v0.17.0/go.mod h1:IowGgpVeD0vNm45So8nr+IcQ3pxVtpRoBWb8PVZO0ik=
+github.com/go-openapi/analysis v0.17.2 h1:eYp14J1o8TTSCzndHBtsNuckikV1PfZOSnx4BcBeu0c=
+github.com/go-openapi/analysis v0.17.2/go.mod h1:IowGgpVeD0vNm45So8nr+IcQ3pxVtpRoBWb8PVZO0ik=
+github.com/go-openapi/errors v0.17.0/go.mod h1:LcZQpmvG4wyF5j4IhA73wkLFQg+QJXOQHVjmcZxhka0=
+github.com/go-openapi/errors v0.17.2 h1:azEQ8Fnx0jmtFF2fxsnmd6I0x6rsweUF63qqSO1NmKk=
+github.com/go-openapi/errors v0.17.2/go.mod h1:LcZQpmvG4wyF5j4IhA73wkLFQg+QJXOQHVjmcZxhka0=
+github.com/go-openapi/inflect v0.17.2 h1:4Zg/XLOwxsyKGFHxCI9e4AkxUFSjLKaoY+jnStSJAfw=
+github.com/go-openapi/inflect v0.17.2/go.mod h1:lHpZVlpIQqLyKwJ4N+YSc9hchQy/i12fJykb83CRBH4=
+github.com/go-openapi/jsonpointer v0.17.0 h1:nH6xp8XdXHx8dqveo0ZuJBluCO2qGrPbDNZ0dwoRHP0=
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+github.com/go-openapi/runtime v0.0.0-20180920151709-4f900dc2ade9/go.mod h1:6v9a6LTXWQCdL8k1AO3cvqx5OtZY/Y9wKTgaoP6YRfA=
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+github.com/go-openapi/strfmt v0.17.0/go.mod h1:P82hnJI0CXkErkXi8IKjPbNBM6lV6+5pLP5l494TcyU=
+github.com/go-openapi/strfmt v0.17.2 h1:2KDns36DMHXG9/iYkOjiX+/8fKK9GCU5ELZ+J6qcRVA=
+github.com/go-openapi/strfmt v0.17.2/go.mod h1:P82hnJI0CXkErkXi8IKjPbNBM6lV6+5pLP5l494TcyU=
+github.com/go-openapi/swag v0.17.0/go.mod h1:AByQ+nYG6gQg71GINrmuDXCPWdL640yX49/kXLo40Tg=
+github.com/go-openapi/swag v0.17.2 h1:K/ycE/XTUDFltNHSO32cGRUhrVGJD64o8WgAIZNyc3k=
+github.com/go-openapi/swag v0.17.2/go.mod h1:AByQ+nYG6gQg71GINrmuDXCPWdL640yX49/kXLo40Tg=
+github.com/go-openapi/validate v0.17.0/go.mod h1:Uh4HdOzKt19xGIGm1qHf/ofbX1YQ4Y+MYsct2VUrAJ4=
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+github.com/go-openapi/validate v0.17.2/go.mod h1:Uh4HdOzKt19xGIGm1qHf/ofbX1YQ4Y+MYsct2VUrAJ4=
 github.com/go-sql-driver/mysql v0.0.0-20171007150158-ee359f95877b h1:/CMGgAYard7jx9+bI7tUIqafFDR7Pv2BRu2Tb5dDaqM=
 github.com/go-sql-driver/mysql v0.0.0-20171007150158-ee359f95877b/go.mod h1:zAC/RDZ24gD3HViQzih4MyKcchzm+sOG5ZlKdlhCg5w=
+github.com/go-swagger/go-swagger v0.17.2 h1:eizwRyO8THHMA4kXyM5Z1UTPslZGE8VsfJC0jJqsRI8=
+github.com/go-swagger/go-swagger v0.17.2/go.mod h1:fOcXeMI1KPNv3uk4u7cR4VSyq0NyrYx4SS1/ajuTWDg=
 github.com/go-xorm/builder v0.0.0-20170519032130-c8871c857d25 h1:jUX9yw6+iKrs/WuysV2M6ap/ObK/07SE/a7I2uxitwM=
 github.com/go-xorm/builder v0.0.0-20170519032130-c8871c857d25/go.mod h1:M+P3wv0K2C+ynucGDEqJCeOTc+6DcAtiiqU8GrCksXY=
 github.com/go-xorm/core v0.5.8 h1:vQ0ghlVGnlnFmm4SpHY+xNnPlH810paMcw+Hwz9BCqE=
@ -26,12 +68,22 @@ github.com/go-xorm/xorm-redis-cache v0.0.0-20180727005610-859b313566b2 h1:57QbyU
 github.com/go-xorm/xorm-redis-cache v0.0.0-20180727005610-859b313566b2/go.mod h1:xxK9FGkFXrau9/vGdDYSOyQfSgKXBV7iHXpQfNuv6B0=
 github.com/google/go-cmp v0.2.0 h1:+dTQ8DZQJz0Mb/HjFlkptS1FeQ4cWSnN941F8aEG4SQ=
 github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
+github.com/google/uuid v1.0.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/gorilla/handlers v1.4.0 h1:XulKRWSQK5uChr4pEgSE4Tc/OcmnU9GJuSwdog/tZsA=
+github.com/gorilla/handlers v1.4.0/go.mod h1:Qkdc/uu4tH4g6mTK6auzZ766c4CA0Ng8+o/OAirnOIQ=
 github.com/hashicorp/hcl v1.0.0 h1:0Anlzjpi4vEasTeNFn2mLJgTSwt0+6sfsiTG8qcWGx4=
 github.com/hashicorp/hcl v1.0.0/go.mod h1:E5yfLk+7swimpb2L/Alb/PJmXilQ/rhwaUYs4T20WEQ=
 github.com/imdario/mergo v0.3.6 h1:xTNEAn+kxVO7dTZGu0CegyqKZmoWFI0rF8UxjlB2d28=
 github.com/imdario/mergo v0.3.6/go.mod h1:2EnlNZ0deacrJVfApfmtdGgDfMuh/nq6Ok1EcJh5FfA=
+github.com/jessevdk/go-flags v1.4.0 h1:4IU2WS7AumrZ/40jfhf4QVDMsQwqA7VEHozFRrGARJA=
+github.com/jessevdk/go-flags v1.4.0/go.mod h1:4FA24M0QyGHXBuZZK/XkWh8h0e1EYbRYJSGM75WSRxI=
 github.com/joho/godotenv v1.3.0 h1:Zjp+RcGpHhGlrMbJzXTrZZPrWj+1vfm90La1wgB6Bhc=
 github.com/joho/godotenv v1.3.0/go.mod h1:7hK45KPybAkOC6peb+G5yklZfMxEjkZhHbwpqxOKXbg=
+github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI=
+github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
+github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
+github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
+github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
 github.com/labstack/echo v3.1.0+incompatible h1:kb0CCZ0boaiGsZOqR9E9+GDpQEoIaKClVqqo0+/hzbM=
 github.com/labstack/echo v3.1.0+incompatible/go.mod h1:0INS7j/VjnFxD4E2wkz67b8cVwCLbBmJyDaka6Cmk1s=
 github.com/labstack/gommon v0.0.0-20170925052817-57409ada9da0 h1:kcJPx2Ug9owxOsVfuXPCludLaIudyI57YQd6ocyrO4o=
@ -40,6 +92,8 @@ github.com/lib/pq v1.0.0 h1:X5PMW56eZitiTeO7tKzZxFCSpbFZJtkMMooicw2us9A=
 github.com/lib/pq v1.0.0/go.mod h1:5WUZQaWbwv1U+lTReE5YruASi9Al49XbQIvNi/34Woo=
 github.com/magiconair/properties v1.8.0 h1:LLgXmsheXeRoUOBOjtwPQCWIYqM/LU1ayDtDePerRcY=
 github.com/magiconair/properties v1.8.0/go.mod h1:PppfXfuXeibc/6YijjN8zIbojt8czPbwD3XqdrwzmxQ=
+github.com/mailru/easyjson v0.0.0-20180823135443-60711f1a8329 h1:2gxZ0XQIU/5z3Z3bUBu+FXuk2pFbkN6tcwi/pjyaDic=
+github.com/mailru/easyjson v0.0.0-20180823135443-60711f1a8329/go.mod h1:C1wdFJiN94OJF2b5HbByQZoLdCWB1Yqtg26g4irojpc=
 github.com/mattn/go-colorable v0.0.0-20170816031813-ad5389df28cd h1:eYiiP5pgdf+n78BU5JFWt7yI2bpxW31L/R5Rrk8vLgs=
 github.com/mattn/go-colorable v0.0.0-20170816031813-ad5389df28cd/go.mod h1:9vuHe8Xs5qXnSaW/c/ABM9alt+Vo+STaOChaDxuIBZU=
 github.com/mattn/go-isatty v0.0.0-20170925054904-a5cdd64afdee h1:tUyoJR5V1TdXnTh9v8c1YAHvDdut2+zkuyUX3gAY/wI=
@ -50,8 +104,11 @@ github.com/mattn/go-sqlite3 v1.9.0 h1:pDRiWfl+++eC2FEFRy6jXmQlvp4Yh3z1MJKg4UeYM/
 github.com/mattn/go-sqlite3 v1.9.0/go.mod h1:FPy6KqzDD04eiIsT53CuJW3U88zkxoIYsOqkbpncsNc=
 github.com/mitchellh/mapstructure v1.0.0 h1:vVpGvMXJPqSDh2VYHF7gsfQj8Ncx+Xw5Y1KHeTRY+7I=
 github.com/mitchellh/mapstructure v1.0.0/go.mod h1:FVVH3fgwuzCH5S8UJGiWEs2h04kUh9fWfEaFds41c1Y=
+github.com/mitchellh/mapstructure v1.1.2 h1:fmNYVwqnSfB9mZU6OS2O6GsXM+wcskZDuKQzvN1EDeE=
+github.com/mitchellh/mapstructure v1.1.2/go.mod h1:FVVH3fgwuzCH5S8UJGiWEs2h04kUh9fWfEaFds41c1Y=
 github.com/op/go-logging v0.0.0-20160211212156-b2cb9fa56473 h1:J1QZwDXgZ4dJD2s19iqR9+U00OWM2kDzbf1O/fmvCWg=
 github.com/op/go-logging v0.0.0-20160211212156-b2cb9fa56473/go.mod h1:HzydrMdWErDVzsI23lYNej1Htcns9BCg93Dk0bBINWk=
+github.com/pborman/uuid v1.2.0/go.mod h1:X/NO0urCmaxf9VXbdlT7C2Yzkj2IKimNn4k+gtPdI/k=
 github.com/pelletier/go-toml v1.2.0 h1:T5zMGML61Wp+FlcbWjRDT7yAxhJNAiPPLOFECq181zc=
 github.com/pelletier/go-toml v1.2.0/go.mod h1:5z9KED0ma1S8pY6P1sdut58dfprrGBbd/94hg7ilaic=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
@ -66,8 +123,10 @@ github.com/spf13/pflag v1.0.2 h1:Fy0orTDgHdbnzHcsOgfCN4LtHf0ec3wwtiwJqwvf3Gc=
 github.com/spf13/pflag v1.0.2/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnInEg4=
 github.com/spf13/viper v1.2.0 h1:M4Rzxlu+RgU4pyBRKhKaVN1VeYOm8h2jgyXnAseDgCc=
 github.com/spf13/viper v1.2.0/go.mod h1:P4AexN0a+C9tGAnUFNwDMYYZv3pjFuvmeiMyKRaNVlI=
-github.com/stretchr/testify v0.0.0-20171231124224-87b1dfb5b2fa h1:ws/U/9eA/uVBX3BckIHVlYLtQLuWodrnpPBuL8Q0N1E=
-github.com/stretchr/testify v0.0.0-20171231124224-87b1dfb5b2fa/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
+github.com/stretchr/testify v1.2.2 h1:bSDNvY7ZPG5RlJ8otE/7V6gMiyenm9RtJ7IUVIAoJ1w=
+github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
+github.com/toqueteos/webbrowser v1.1.0 h1:Prj1okiysRgHPoe3B1bOIVxcv+UuSt525BDQmR5W0x0=
+github.com/toqueteos/webbrowser v1.1.0/go.mod h1:Hqqqmzj8AHn+VlZyVjaRWY20i25hoOZGAABCcg2el4A=
 github.com/valyala/bytebufferpool v1.0.0 h1:GqA5TC/0021Y/b9FG4Oi9Mr3q7XYx6KllzawFIhcdPw=
 github.com/valyala/bytebufferpool v1.0.0/go.mod h1:6bBcMArwyJ5K/AmCkWv1jt77kVWyCJ6HpOuEn7z0Csc=
 github.com/valyala/fasttemplate v0.0.0-20170224212429-dcecefd839c4 h1:gKMu1Bf6QINDnvyZuTaACm9ofY+PRh+5vFz4oxBZeF8=
@ -76,12 +135,20 @@ github.com/ziutek/mymysql v1.5.4 h1:GB0qdRGsTwQSBVYuVShFBKaXSnSnYYC2d9knnE1LHFs=
 github.com/ziutek/mymysql v1.5.4/go.mod h1:LMSpPZ6DbqWFxNCHW77HeMg9I646SAhApZ/wKdgO/C0=
 golang.org/x/crypto v0.0.0-20170930174604-9419663f5a44 h1:9lP3x0pW80sDI6t1UMSLA4to18W7R7imwAI/sWS9S8Q=
 golang.org/x/crypto v0.0.0-20170930174604-9419663f5a44/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
+golang.org/x/net v0.0.0-20181005035420-146acd28ed58 h1:otZG8yDCO4LVps5+9bxOeNiCvgmOyt96J3roHTYs7oE=
+golang.org/x/net v0.0.0-20181005035420-146acd28ed58/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/sys v0.0.0-20180906133057-8cf3aee42992 h1:BH3eQWeGbwRU2+wxxuuPOdFBmaiBH81O8BugSjHeTFg=
 golang.org/x/sys v0.0.0-20180906133057-8cf3aee42992/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+golang.org/x/tools v0.0.0-20181026183834-f60e5f99f081 h1:QJP9sxq2/KbTxFnGduVryxJOt6r/UVGyom3tLaqu7tc=
+golang.org/x/tools v0.0.0-20181026183834-f60e5f99f081/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
+gopkg.in/alexcesaro/quotedprintable.v3 v3.0.0-20150716171945-2caba252f4dc h1:2gGKlE2+asNV9m7xrywl36YYNnBG5ZQ0r/BOOxqPpmk=
+gopkg.in/alexcesaro/quotedprintable.v3 v3.0.0-20150716171945-2caba252f4dc/go.mod h1:m7x9LTH6d71AHyAX77c9yqWCCa3UKHcVEj9y7hAtKDk=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/gomail.v2 v2.0.0-20160411212932-81ebce5c23df h1:n7WqCuqOuCbNr617RXOY0AWRXxgwEyPp2z+p0+hgMuE=
+gopkg.in/gomail.v2 v2.0.0-20160411212932-81ebce5c23df/go.mod h1:LRQQ+SO6ZHR7tOkpBDuZnXENFzX8qRjMDMyPD6BRkCw=
 gopkg.in/testfixtures.v2 v2.4.5 h1:mnfYPBNoJnis+4crs6UzC4lv4GjTVoLXE9B/tW802q0=
 gopkg.in/testfixtures.v2 v2.4.5/go.mod h1:vyAq+MYCgNpR29qitQdLZhdbLFf4mR/2MFJRFoQZZ2M=
 gopkg.in/yaml.v2 v2.2.1 h1:mUhvW9EsL+naU5Q3cakzfE91YhliOondGd6ZrsDBHQE=
--- a/main.go
+++ b/main.go
@ -2,6 +2,7 @@ package main

 import (
 	"code.vikunja.io/api/models"
+	"code.vikunja.io/api/models/mail"
 	"code.vikunja.io/api/routes"

 	"context"
@ -33,6 +34,9 @@ func main() {
 		os.Exit(1)
 	}

+	// Start the mail daemon
+	mail.StartMailDaemon()
+
 	// Version notification
 	models.Log.Infof("Vikunja version %s", Version)

--- a/models/config.go
+++ b/models/config.go
@ -17,8 +17,10 @@ func InitConfig() (err error) {
 		return err
 	}

+	// Service
 	viper.SetDefault("service.JWTSecret", random)
 	viper.SetDefault("service.interface", ":3456")
+	viper.SetDefault("service.frontendurl", "")
 	// Database
 	viper.SetDefault("database.type", "sqlite")
 	viper.SetDefault("database.host", "localhost")
@ -34,6 +36,15 @@ func InitConfig() (err error) {
 	viper.SetDefault("cache.maxelementsize", 1000)
 	viper.SetDefault("cache.redishost", "localhost:6379")
 	viper.SetDefault("cache.redispassword", "")
+	// Mailer
+	viper.SetDefault("mailer.host", "")
+	viper.SetDefault("mailer.port", "587")
+	viper.SetDefault("mailer.user", "user")
+	viper.SetDefault("mailer.password", "")
+	viper.SetDefault("mailer.skiptlsverify", false)
+	viper.SetDefault("mailer.fromemail", "mail@vikunja")
+	viper.SetDefault("mailer.queuelength", 100)
+	viper.SetDefault("mailer.queuetimeout", 30)

 	// Init checking for environment variables
 	viper.SetEnvPrefix("vikunja")
--- a/models/error.go
+++ b/models/error.go
@ -134,25 +134,45 @@ func (err ErrCouldNotGetUserID) HTTPError() HTTPError {
 	return HTTPError{HTTPCode: http.StatusBadRequest, Code: ErrCodeCouldNotGetUserID, Message: "Could not get user id."}
 }

-// ErrCannotDeleteLastUser represents a "ErrCannotDeleteLastUser" kind of error.
-type ErrCannotDeleteLastUser struct{}
-
-// IsErrCannotDeleteLastUser checks if an error is a ErrCannotDeleteLastUser.
-func IsErrCannotDeleteLastUser(err error) bool {
-	_, ok := err.(ErrCannotDeleteLastUser)
-	return ok
+// ErrNoPasswordResetToken represents an error where no password reset token exists for that user
+type ErrNoPasswordResetToken struct {
+	UserID int64
 }

-func (err ErrCannotDeleteLastUser) Error() string {
-	return fmt.Sprintf("Cannot delete last user")
+func (err ErrNoPasswordResetToken) Error() string {
+	return fmt.Sprintf("No token to reset a password [UserID: %d]", err.UserID)
 }

-// ErrCodeCannotDeleteLastUser holds the unique world-error code of this error
-const ErrCodeCannotDeleteLastUser = 1007
+// ErrCodeNoPasswordResetToken holds the unique world-error code of this error
+const ErrCodeNoPasswordResetToken = 1008

 // HTTPError holds the http error description
-func (err ErrCannotDeleteLastUser) HTTPError() HTTPError {
-	return HTTPError{HTTPCode: http.StatusConflict, Code: ErrCodeCannotDeleteLastUser, Message: "Cannot delete the last user on the server."}
+func (err ErrNoPasswordResetToken) HTTPError() HTTPError {
+	return HTTPError{HTTPCode: http.StatusPreconditionFailed, Code: ErrCodeNoPasswordResetToken, Message: "No token to reset a user's password provided."}
+}
+
+// ErrInvalidPasswordResetToken is an error where the password reset token is invalid
+type ErrInvalidPasswordResetToken struct {
+	UserID int64
+	Token  string
+}
+
+func (err ErrInvalidPasswordResetToken) Error() string {
+	return fmt.Sprintf("Invalid token to reset a password [UserID: %d, Token: %s]", err.UserID, err.Token)
+}
+
+// ErrCodeInvalidPasswordResetToken holds the unique world-error code of this error
+const ErrCodeInvalidPasswordResetToken = 1009
+
+// HTTPError holds the http error description
+func (err ErrInvalidPasswordResetToken) HTTPError() HTTPError {
+	return HTTPError{HTTPCode: http.StatusPreconditionFailed, Code: ErrCodeInvalidPasswordResetToken, Message: "Invalid token to reset a user's password provided."}
+}
+
+// IsErrInvalidPasswordResetToken checks if an error is a ErrInvalidPasswordResetToken.
+func IsErrInvalidPasswordResetToken(err error) bool {
+	_, ok := err.(ErrInvalidPasswordResetToken)
+	return ok
 }

 // ===================
--- a/models/mail/mail.go
+++ b/models/mail/mail.go
@ -0,0 +1,66 @@
+package mail
+
+import (
+	"crypto/tls"
+	"fmt"
+	"github.com/spf13/viper"
+	"gopkg.in/gomail.v2"
+	"time"
+)
+
+// Queue is the mail queue
+var Queue chan *gomail.Message
+
+// StartMailDaemon starts the mail daemon
+func StartMailDaemon() {
+	if viper.GetString("mailer.host") == "" {
+		//models.Log.Warning("Mailer seems to be not configured! Please see the config docs for more details.")
+		fmt.Println("Mailer seems to be not configured! Please see the config docs for more details.")
+		return
+	}
+
+	Queue = make(chan *gomail.Message, viper.GetInt("mailer.queuelength"))
+
+	go func() {
+		d := gomail.NewDialer(viper.GetString("mailer.host"), viper.GetInt("mailer.port"), viper.GetString("mailer.username"), viper.GetString("mailer.password"))
+		d.TLSConfig = &tls.Config{InsecureSkipVerify: viper.GetBool("mailer.skiptlsverify")}
+
+		var s gomail.SendCloser
+		var err error
+		open := false
+		for {
+			select {
+			case m, ok := <-Queue:
+				if !ok {
+					return
+				}
+				if !open {
+					if s, err = d.Dial(); err != nil {
+						// models.Log.Error("Error during connect to smtp server: %s", err)
+						fmt.Printf("Error during connect to smtp server: %s \n", err)
+					}
+					open = true
+				}
+				if err := gomail.Send(s, m); err != nil {
+					// models.Log.Error("Error when sending mail: %s", err)
+					fmt.Printf("Error when sending mail: %s \n", err)
+				}
+				// Close the connection to the SMTP server if no email was sent in
+				// the last 30 seconds.
+			case <-time.After(viper.GetDuration("mailer.queuetimeout") * time.Second):
+				if open {
+					if err := s.Close(); err != nil {
+						fmt.Printf("Error closing the mail server connection: %s\n", err)
+					}
+					fmt.Println("Closed connection to mailserver")
+					open = false
+				}
+			}
+		}
+	}()
+}
+
+// StopMailDaemon closes the mail queue channel, aka stops the daemon
+func StopMailDaemon() {
+	close(Queue)
+}
--- a/models/mail/send_mail.go
+++ b/models/mail/send_mail.go
@ -0,0 +1,101 @@
+package mail
+
+import (
+	"bytes"
+	"code.vikunja.io/api/models/utils"
+	"github.com/labstack/gommon/log"
+	"github.com/spf13/viper"
+	"gopkg.in/gomail.v2"
+	"text/template"
+)
+
+// Opts holds infos for a mail
+type Opts struct {
+	To          string
+	Subject     string
+	Message     string
+	HTMLMessage string
+	ContentType ContentType
+	Boundary    string
+	Headers     []*header
+}
+
+// ContentType represents mail content types
+type ContentType int
+
+// Enumerate all the team rights
+const (
+	ContentTypePlain ContentType = iota
+	ContentTypeHTML
+	ContentTypeMultipart
+)
+
+type header struct {
+	Field   string
+	Content string
+}
+
+// SendMail puts a mail in the queue
+func SendMail(opts *Opts) {
+	m := gomail.NewMessage()
+	m.SetHeader("From", viper.GetString("mailer.fromemail"))
+	m.SetHeader("To", opts.To)
+	m.SetHeader("Subject", opts.Subject)
+	for _, h := range opts.Headers {
+		m.SetHeader(h.Field, h.Content)
+	}
+
+	switch opts.ContentType {
+	case ContentTypePlain:
+		m.SetBody("text/plain", opts.Message)
+	case ContentTypeHTML:
+		m.SetBody("text/html", opts.Message)
+	case ContentTypeMultipart:
+		m.SetBody("text/plain", opts.Message)
+		m.AddAlternative("text/html", opts.HTMLMessage)
+	}
+
+	Queue <- m
+}
+
+// Template holds a pointer about a template
+type Template struct {
+	Templates *template.Template
+}
+
+// SendMailWithTemplate parses a template and sends it via mail
+func SendMailWithTemplate(to, subject, tpl string, data map[string]interface{}) {
+	var htmlContent bytes.Buffer
+	var plainContent bytes.Buffer
+
+	t := &Template{
+		Templates: template.Must(template.ParseGlob("templates/mail/*.tmpl")),
+	}
+
+	boundary := "np" + utils.MakeRandomString(13)
+
+	data["Boundary"] = boundary
+	data["FrontendURL"] = viper.GetString("service.frontendurl")
+
+	if err := t.Templates.ExecuteTemplate(&htmlContent, tpl+".html.tmpl", data); err != nil {
+		log.Error(3, "Template: %v", err)
+		return
+	}
+
+	if err := t.Templates.ExecuteTemplate(&plainContent, tpl+".plain.tmpl", data); err != nil {
+		log.Error(3, "Template: %v", err)
+		return
+	}
+
+	opts := &Opts{
+		To:          to,
+		Subject:     subject,
+		Message:     plainContent.String(),
+		HTMLMessage: htmlContent.String(),
+		ContentType: ContentTypeMultipart,
+		Boundary:    boundary,
+		Headers:     []*header{{Field: "MIME-Version", Content: "1.0"}},
+	}
+
+	SendMail(opts)
+}
--- a/models/user.go
+++ b/models/user.go
@ -18,8 +18,11 @@ type User struct {
 	Username string `xorm:"varchar(250) not null unique" json:"username"`
 	Password string `xorm:"varchar(250) not null" json:"-"`
 	Email    string `xorm:"varchar(250)" json:"email"`
-	Created  int64  `xorm:"created" json:"-"`
-	Updated  int64  `xorm:"updated" json:"-"`
+
+	PasswordResetToken string `xorm:"varchar(450)" json:"-"`
+
+	Created int64 `xorm:"created" json:"-"`
+	Updated int64 `xorm:"updated" json:"-"`
 }

 // TableName returns the table name for users
@ -61,7 +64,7 @@ func GetUser(user User) (userOut User, err error) {
 	exists, err := x.Get(&userOut)

 	if !exists {
-		return User{}, ErrUserDoesNotExist{}
+		return User{}, ErrUserDoesNotExist{UserID: user.ID}
 	}

 	return userOut, err
--- a/models/user_delete.go
+++ b/models/user_delete.go
@ -7,18 +7,8 @@ func DeleteUserByID(id int64, doer *User) error {
 		return ErrIDCannotBeZero{}
 	}

-	// Check if there is > 1 user
-	total, err := x.Count(User{})
-	if err != nil {
-		return err
-	}
-
-	if total < 2 {
-		return ErrCannotDeleteLastUser{}
-	}
-
 	// Delete the user
-	_, err = x.Id(id).Delete(&User{})
+	_, err := x.Id(id).Delete(&User{})

 	if err != nil {
 		return err
--- a/models/user_password_reset.go
+++ b/models/user_password_reset.go
@ -0,0 +1,90 @@
+package models
+
+import (
+	"code.vikunja.io/api/models/mail"
+	"code.vikunja.io/api/models/utils"
+)
+
+// PasswordReset holds the data to reset a password
+type PasswordReset struct {
+	UserID      int64  `json:"user_id"`
+	Token       string `json:"token"`
+	NewPassword string `json:"new_password"`
+}
+
+// UserPasswordReset resets a users password
+func UserPasswordReset(reset *PasswordReset) (err error) {
+
+	// Check if the password is not empty
+	if reset.NewPassword == "" {
+		return ErrNoUsernamePassword{}
+	}
+
+	// Check if the user exists
+	user, err := GetUserByID(reset.UserID)
+	if err != nil {
+		return
+	}
+
+	// Check if we have a token
+	exists, err := x.Where("password_reset_token = ? AND id = ?", reset.Token, user.ID).Exist(&User{})
+	if err != nil {
+		return
+	}
+
+	if !exists {
+		return ErrInvalidPasswordResetToken{UserID: reset.UserID, Token: reset.Token}
+	}
+
+	// Hash the password
+	user.Password, err = hashPassword(reset.NewPassword)
+	if err != nil {
+		return
+	}
+
+	// Save it
+	_, err = x.Where("id = ?", user.ID).Update(&user)
+	if err != nil {
+		return
+	}
+
+	// Send a mail to the user to notify it his password was changed.
+	data := map[string]interface{}{
+		"User": user,
+	}
+
+	mail.SendMailWithTemplate(user.Email, "Your password on Vikunja was changed", "password-changed", data)
+
+	return
+}
+
+// PasswordTokenRequest defines the request format for password reset resqest
+type PasswordTokenRequest struct {
+	Username string `json:"user_name"`
+}
+
+// RequestUserPasswordResetToken inserts a random token to reset a users password into the databsse
+func RequestUserPasswordResetToken(tr *PasswordTokenRequest) (err error) {
+	// Check if the user exists
+	user, err := GetUser(User{Username: tr.Username})
+	if err != nil {
+		return
+	}
+
+	// Generate a token and save it
+	user.PasswordResetToken = utils.MakeRandomString(400)
+
+	// Save it
+	_, err = x.Where("id = ?", user.ID).Update(&user)
+	if err != nil {
+		return
+	}
+
+	data := map[string]interface{}{
+		"User": user,
+	}
+
+	// Send the user a mail with the reset token
+	mail.SendMailWithTemplate(user.Email, "Reset your password on Vikunja", "reset-password", data)
+	return
+}
--- a/models/user_test.go
+++ b/models/user_test.go
@ -1,6 +1,7 @@
 package models

 import (
+	"code.vikunja.io/api/models/utils"
 	"github.com/stretchr/testify/assert"
 	"testing"
 )
@ -20,24 +21,12 @@ func TestCreateUser(t *testing.T) {
 		Email:    "noone@example.com",
 	}

-	// Delete every preexisting user to have a fresh start
-	_, err = x.Where("1 = 1").Delete(&User{})
-	assert.NoError(t, err)
-
-	allusers, err := ListUsers("")
-	assert.NoError(t, err)
-	for _, user := range allusers {
-		// Delete it
-		err := DeleteUserByID(user.ID, &doer)
-		assert.NoError(t, err)
-	}
-
 	// Create a new user
 	createdUser, err := CreateUser(dummyuser)
 	assert.NoError(t, err)

 	// Create a second new user
-	createdUser2, err := CreateUser(User{Username: dummyuser.Username + "2", Email: dummyuser.Email + "m", Password: dummyuser.Password})
+	_, err = CreateUser(User{Username: dummyuser.Username + "2", Email: dummyuser.Email + "m", Password: dummyuser.Password})
 	assert.NoError(t, err)

 	// Check if it fails to create the same user again
@ -128,9 +117,39 @@ func TestCreateUser(t *testing.T) {
 	err = DeleteUserByID(0, &doer)
 	assert.Error(t, err)
 	assert.True(t, IsErrIDCannotBeZero(err))
-
-	// Try delete the last user (Should fail)
-	err = DeleteUserByID(createdUser2.ID, &doer)
-	assert.Error(t, err)
-	assert.True(t, IsErrCannotDeleteLastUser(err))
+}
+
+func TestUserPasswordReset(t *testing.T) {
+	// Request a new token
+	tr := &PasswordTokenRequest{
+		UserID: 1,
+	}
+	err := RequestUserPasswordResetToken(tr)
+	assert.NoError(t, err)
+
+	// Get the token / inside the user object
+	userWithToken, err := GetUserByID(1)
+	assert.NoError(t, err)
+
+	// Try resetting it
+	reset := &PasswordReset{
+		UserID: 1,
+		Token:  userWithToken.PasswordResetToken,
+	}
+
+	// Try resetting it without a password
+	reset.NewPassword = ""
+	err = UserPasswordReset(reset)
+	assert.True(t, IsErrNoUsernamePassword(err))
+
+	// Reset it
+	reset.NewPassword = "1234"
+	err = UserPasswordReset(reset)
+	assert.NoError(t, err)
+
+	// Try resetting it with a wrong token
+	reset.Token = utils.MakeRandomString(400)
+	err = UserPasswordReset(reset)
+	assert.Error(t, err)
+	assert.True(t, IsErrInvalidPasswordResetToken(err))
 }
--- a/models/utils/random_string.go
+++ b/models/utils/random_string.go
@ -0,0 +1,36 @@
+package utils
+
+import (
+	"math/rand"
+	"time"
+)
+
+func init() {
+	rand.Seed(time.Now().UnixNano())
+}
+
+const letterBytes = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
+const (
+	letterIdxBits = 6                    // 6 bits to represent a letter index
+	letterIdxMask = 1<<letterIdxBits - 1 // All 1-bits, as many as letterIdxBits
+	letterIdxMax  = 63 / letterIdxBits   // # of letter indices fitting in 63 bits
+)
+
+// MakeRandomString return a random string
+func MakeRandomString(n int) string {
+	b := make([]byte, n)
+	// A rand.Int63() generates 63 random bits, enough for letterIdxMax letters!
+	for i, cache, remain := n-1, rand.Int63(), letterIdxMax; i >= 0; {
+		if remain == 0 {
+			cache, remain = rand.Int63(), letterIdxMax
+		}
+		if idx := int(cache & letterIdxMask); idx < len(letterBytes) {
+			b[i] = letterBytes[idx]
+			i--
+		}
+		cache >>= letterIdxBits
+		remain--
+	}
+
+	return string(b)
+}
--- a/public/swagger/swagger.v1.json
+++ b/public/swagger/swagger.v1.json
@ -1607,6 +1607,82 @@
        }
      }
    },
+    "/user/password/reset": {
+      "post": {
+        "consumes": [
+          "application/json"
+        ],
+        "produces": [
+          "application/json"
+        ],
+        "tags": [
+          "user"
+        ],
+        "summary": "Resets a users password",
+        "operationId": "updatePassword",
+        "parameters": [
+          {
+            "name": "body",
+            "in": "body",
+            "schema": {
+              "$ref": "#/definitions/PasswordReset"
+            }
+          }
+        ],
+        "responses": {
+          "200": {
+            "$ref": "#/responses/Message"
+          },
+          "400": {
+            "$ref": "#/responses/Message"
+          },
+          "404": {
+            "$ref": "#/responses/Message"
+          },
+          "500": {
+            "$ref": "#/responses/Message"
+          }
+        }
+      }
+    },
+    "/user/password/token": {
+      "post": {
+        "consumes": [
+          "application/json"
+        ],
+        "produces": [
+          "application/json"
+        ],
+        "tags": [
+          "user"
+        ],
+        "summary": "Requests a token to reset a users password",
+        "operationId": "requestUpdatePasswordToken",
+        "parameters": [
+          {
+            "name": "body",
+            "in": "body",
+            "schema": {
+              "$ref": "#/definitions/PasswordTokenRequest"
+            }
+          }
+        ],
+        "responses": {
+          "200": {
+            "$ref": "#/responses/Message"
+          },
+          "400": {
+            "$ref": "#/responses/Message"
+          },
+          "404": {
+            "$ref": "#/responses/Message"
+          },
+          "500": {
+            "$ref": "#/responses/Message"
+          }
+        }
+      }
+    },
    "/users": {
      "get": {
        "consumes": [
@ -1872,6 +1948,37 @@
      },
      "x-go-package": "code.vikunja.io/api/models"
    },
+    "PasswordReset": {
+      "description": "PasswordReset holds the data to reset a password",
+      "type": "object",
+      "properties": {
+        "new_password": {
+          "type": "string",
+          "x-go-name": "NewPassword"
+        },
+        "token": {
+          "type": "string",
+          "x-go-name": "Token"
+        },
+        "user_id": {
+          "type": "integer",
+          "format": "int64",
+          "x-go-name": "UserID"
+        }
+      },
+      "x-go-package": "code.vikunja.io/api/models"
+    },
+    "PasswordTokenRequest": {
+      "description": "PasswordTokenRequest defines the request format for password reset resqest",
+      "type": "object",
+      "properties": {
+        "user_name": {
+          "type": "string",
+          "x-go-name": "Username"
+        }
+      },
+      "x-go-package": "code.vikunja.io/api/models"
+    },
    "Team": {
      "description": "Team holds a team object",
      "type": "object",
@ -2176,7 +2283,7 @@
    "parameterBodies": {
      "description": "parameterBodies",
      "schema": {
-        "$ref": "#/definitions/NamespaceUser"
+        "$ref": "#/definitions/PasswordTokenRequest"
      }
    }
  }
--- a/routes/api/v1/swagger/options.go
+++ b/routes/api/v1/swagger/options.go
@ -40,4 +40,10 @@ type swaggerParameterBodies struct {

 	// in:body
 	NamespaceUser models.NamespaceUser
+
+	// in:body
+	PasswordReset models.PasswordReset
+
+	// in:body
+	PasswordTokenRequest models.PasswordTokenRequest
 }
--- a/routes/api/v1/user_password_reset.go
+++ b/routes/api/v1/user_password_reset.go
@ -0,0 +1,84 @@
+package v1
+
+import (
+	"code.vikunja.io/api/models"
+	"code.vikunja.io/api/routes/crud"
+	"github.com/labstack/echo"
+	"net/http"
+)
+
+// UserResetPassword is the handler to change a users password
+func UserResetPassword(c echo.Context) error {
+	// swagger:operation POST /user/password/reset user updatePassword
+	// ---
+	// summary: Resets a users password
+	// consumes:
+	// - application/json
+	// produces:
+	// - application/json
+	// parameters:
+	// - name: body
+	//   in: body
+	//   schema:
+	//     "$ref": "#/definitions/PasswordReset"
+	// responses:
+	//   "200":
+	//     "$ref": "#/responses/Message"
+	//   "400":
+	//     "$ref": "#/responses/Message"
+	//   "404":
+	//     "$ref": "#/responses/Message"
+	//   "500":
+	//     "$ref": "#/responses/Message"
+
+	// Check for Request Content
+	var pwReset models.PasswordReset
+	if err := c.Bind(&pwReset); err != nil {
+		return echo.NewHTTPError(http.StatusBadRequest, "No password provided.")
+	}
+
+	err := models.UserPasswordReset(&pwReset)
+	if err != nil {
+		return crud.HandleHTTPError(err)
+	}
+
+	return c.JSON(http.StatusOK, models.Message{"The password was updated successfully."})
+}
+
+// UserRequestResetPasswordToken is the handler to change a users password
+func UserRequestResetPasswordToken(c echo.Context) error {
+	// swagger:operation POST /user/password/token user requestUpdatePasswordToken
+	// ---
+	// summary: Requests a token to reset a users password
+	// consumes:
+	// - application/json
+	// produces:
+	// - application/json
+	// parameters:
+	// - name: body
+	//   in: body
+	//   schema:
+	//     "$ref": "#/definitions/PasswordTokenRequest"
+	// responses:
+	//   "200":
+	//     "$ref": "#/responses/Message"
+	//   "400":
+	//     "$ref": "#/responses/Message"
+	//   "404":
+	//     "$ref": "#/responses/Message"
+	//   "500":
+	//     "$ref": "#/responses/Message"
+
+	// Check for Request Content
+	var pwTokenReset models.PasswordTokenRequest
+	if err := c.Bind(&pwTokenReset); err != nil {
+		return echo.NewHTTPError(http.StatusBadRequest, "No user ID provided.")
+	}
+
+	err := models.RequestUserPasswordResetToken(&pwTokenReset)
+	if err != nil {
+		return crud.HandleHTTPError(err)
+	}
+
+	return c.JSON(http.StatusOK, models.Message{"Token was sent."})
+}
--- a/routes/routes.go
+++ b/routes/routes.go
@ -65,6 +65,8 @@ func RegisterRoutes(e *echo.Echo) {

 	a.POST("/login", apiv1.Login)
 	a.POST("/register", apiv1.RegisterUser)
+	a.POST("/user/password/token", apiv1.UserRequestResetPasswordToken)
+	a.POST("/user/password/reset", apiv1.UserResetPassword)

 	// ===== Routes with Authetification =====
 	// Authetification
--- a/templates/mail/mail-footer.tmpl
+++ b/templates/mail/mail-footer.tmpl
@ -0,0 +1,5 @@
+</div>
+</div>
+</div>
+</body>
+</html>
--- a/templates/mail/mail-header.tmpl
+++ b/templates/mail/mail-header.tmpl
@ -0,0 +1,12 @@
+<!doctype html>
+<html style="width: 100%; height: 100%; padding: 0; margin: 0;">
+<head>
+    <meta name="viewport" content="width: display-width;">
+</head>
+<body style="width: 100%; padding: 0; margin: 0; background: #fbfbfb">
+<div style="width: 100%; font-family: 'Open Sans', sans-serif; text-rendering: optimizeLegibility">
+    <div style="width: 600px; margin: 0 auto; text-align: justify;">
+        <h1 style="font-size: 30px; text-align: center;">
+            <img src="{{.FrontendURL}}images/logo-full.svg" style="height: 75px;" alt="Vikunja"/>
+        </h1>
+        <div style="border: 1px solid #ccc; box-shadow: 1px 1px 5px #eeeeee; padding: 5px 25px; border-radius: 3px; background: #fff;">
--- a/templates/mail/password-changed.html.tmpl
+++ b/templates/mail/password-changed.html.tmpl
@ -0,0 +1,9 @@
+{{template "mail-header.tmpl" .}}
+<p>
+    Hi {{.User.Username}},<br/>
+    <br/>
+    Your account password was successfully changed.
+    <br/>
+    If this wasn't you, it could mean someone compromised your account. In this case contact your server's administrator.
+</p>
+{{template "mail-footer.tmpl"}}
--- a/templates/mail/password-changed.plain.tmpl
+++ b/templates/mail/password-changed.plain.tmpl
@ -0,0 +1,5 @@
+Hi {{.User.Username}},
+
+Your account password was successfully changed.
+
+If this wasn't you, it could mean someone compromised your account. In this case contact your server's administrator.
--- a/templates/mail/reset-password.html.tmpl
+++ b/templates/mail/reset-password.html.tmpl
@ -0,0 +1,14 @@
+{{template "mail-header.tmpl" .}}
+<p>
+    Hi {{.User.Username}},<br>
+    <br>
+    To reset your password, click the link below:
+</p>
+<a href="{{.FrontendURL}}?userPasswordReset={{.User.PasswordResetToken}}" title="Reset your password" style="background: rgb(20, 131, 175); -webkit-border-radius: 4px; -moz-border-radius: 4px; border-radius: 4px; border: 1px solid rgb(16, 106, 140); border-bottom-width: 3px;  color: rgb(255, 255, 255); font-weight: 700; font-size: 13px; margin: 10px auto; padding: 5px 10px; text-decoration: none; text-align: center; text-rendering: optimizelegibility; text-transform: uppercase; display: block; width: 200px;">
+    Reset your password
+</a>
+<p>
+    If the button above doesn't work, copy the url below and paste it in your browsers address bar:<br/>
+    {{.FrontendURL}}?userPasswordReset={{.User.PasswordResetToken}}
+</p>
+{{template "mail-footer.tmpl"}}
--- a/templates/mail/reset-password.plain.tmpl
+++ b/templates/mail/reset-password.plain.tmpl
@ -0,0 +1,3 @@
+Hi {{.User.Username}},
+
+Use the following link to reset your password: {{.FrontendURL}}?userPasswordReset={{.User.PasswordResetToken}}
--- a/vendor/github.com/davecgh/go-spew/LICENSE
+++ b/vendor/github.com/davecgh/go-spew/LICENSE
@ -2,7 +2,7 @@ ISC License

 Copyright (c) 2012-2016 Dave Collins <dave@davec.name>

-Permission to use, copy, modify, and distribute this software for any
+Permission to use, copy, modify, and/or distribute this software for any
 purpose with or without fee is hereby granted, provided that the above
 copyright notice and this permission notice appear in all copies.

--- a/vendor/github.com/davecgh/go-spew/spew/bypass.go
+++ b/vendor/github.com/davecgh/go-spew/spew/bypass.go
@ -16,7 +16,9 @@
 // when the code is not running on Google App Engine, compiled by GopherJS, and
 // "-tags safe" is not added to the go build command line.  The "disableunsafe"
 // tag is deprecated and thus should not be used.
-// +build !js,!appengine,!safe,!disableunsafe
+// Go versions prior to 1.4 are disabled because they use a different layout
+// for interfaces which make the implementation of unsafeReflectValue more complex.
+// +build !js,!appengine,!safe,!disableunsafe,go1.4

 package spew

@ -34,80 +36,49 @@ const (
 	ptrSize = unsafe.Sizeof((*byte)(nil))
 )

-var (
-	// offsetPtr, offsetScalar, and offsetFlag are the offsets for the
-	// internal reflect.Value fields.  These values are valid before golang
-	// commit ecccf07e7f9d which changed the format.  The are also valid
-	// after commit 82f48826c6c7 which changed the format again to mirror
-	// the original format.  Code in the init function updates these offsets
-	// as necessary.
-	offsetPtr    = uintptr(ptrSize)
-	offsetScalar = uintptr(0)
-	offsetFlag   = uintptr(ptrSize * 2)
+type flag uintptr

-	// flagKindWidth and flagKindShift indicate various bits that the
-	// reflect package uses internally to track kind information.
-	//
-	// flagRO indicates whether or not the value field of a reflect.Value is
-	// read-only.
-	//
-	// flagIndir indicates whether the value field of a reflect.Value is
-	// the actual data or a pointer to the data.
-	//
-	// These values are valid before golang commit 90a7c3c86944 which
-	// changed their positions.  Code in the init function updates these
-	// flags as necessary.
-	flagKindWidth = uintptr(5)
-	flagKindShift = uintptr(flagKindWidth - 1)
-	flagRO        = uintptr(1 << 0)
-	flagIndir     = uintptr(1 << 1)
+var (
+	// flagRO indicates whether the value field of a reflect.Value
+	// is read-only.
+	flagRO flag
+
+	// flagAddr indicates whether the address of the reflect.Value's
+	// value may be taken.
+	flagAddr flag
 )

-func init() {
-	// Older versions of reflect.Value stored small integers directly in the
-	// ptr field (which is named val in the older versions).  Versions
-	// between commits ecccf07e7f9d and 82f48826c6c7 added a new field named
-	// scalar for this purpose which unfortunately came before the flag
-	// field, so the offset of the flag field is different for those
-	// versions.
-	//
-	// This code constructs a new reflect.Value from a known small integer
-	// and checks if the size of the reflect.Value struct indicates it has
-	// the scalar field. When it does, the offsets are updated accordingly.
-	vv := reflect.ValueOf(0xf00)
-	if unsafe.Sizeof(vv) == (ptrSize * 4) {
-		offsetScalar = ptrSize * 2
-		offsetFlag = ptrSize * 3
-	}
+// flagKindMask holds the bits that make up the kind
+// part of the flags field. In all the supported versions,
+// it is in the lower 5 bits.
+const flagKindMask = flag(0x1f)

-	// Commit 90a7c3c86944 changed the flag positions such that the low
-	// order bits are the kind.  This code extracts the kind from the flags
-	// field and ensures it's the correct type.  When it's not, the flag
-	// order has been changed to the newer format, so the flags are updated
-	// accordingly.
-	upf := unsafe.Pointer(uintptr(unsafe.Pointer(&vv)) + offsetFlag)
-	upfv := *(*uintptr)(upf)
-	flagKindMask := uintptr((1<<flagKindWidth - 1) << flagKindShift)
-	if (upfv&flagKindMask)>>flagKindShift != uintptr(reflect.Int) {
-		flagKindShift = 0
-		flagRO = 1 << 5
-		flagIndir = 1 << 6
+// Different versions of Go have used different
+// bit layouts for the flags type. This table
+// records the known combinations.
+var okFlags = []struct {
+	ro, addr flag
+}{{
+	// From Go 1.4 to 1.5
+	ro:   1 << 5,
+	addr: 1 << 7,
+}, {
+	// Up to Go tip.
+	ro:   1<<5 | 1<<6,
+	addr: 1 << 8,
+}}

-		// Commit adf9b30e5594 modified the flags to separate the
-		// flagRO flag into two bits which specifies whether or not the
-		// field is embedded.  This causes flagIndir to move over a bit
-		// and means that flagRO is the combination of either of the
-		// original flagRO bit and the new bit.
-		//
-		// This code detects the change by extracting what used to be
-		// the indirect bit to ensure it's set.  When it's not, the flag
-		// order has been changed to the newer format, so the flags are
-		// updated accordingly.
-		if upfv&flagIndir == 0 {
-			flagRO = 3 << 5
-			flagIndir = 1 << 7
-		}
+var flagValOffset = func() uintptr {
+	field, ok := reflect.TypeOf(reflect.Value{}).FieldByName("flag")
+	if !ok {
+		panic("reflect.Value has no flag field")
 	}
+	return field.Offset
+}()
+
+// flagField returns a pointer to the flag field of a reflect.Value.
+func flagField(v *reflect.Value) *flag {
+	return (*flag)(unsafe.Pointer(uintptr(unsafe.Pointer(v)) + flagValOffset))
 }

 // unsafeReflectValue converts the passed reflect.Value into a one that bypasses
@ -119,34 +90,56 @@ func init() {
 // This allows us to check for implementations of the Stringer and error
 // interfaces to be used for pretty printing ordinarily unaddressable and
 // inaccessible values such as unexported struct fields.
-func unsafeReflectValue(v reflect.Value) (rv reflect.Value) {
-	indirects := 1
-	vt := v.Type()
-	upv := unsafe.Pointer(uintptr(unsafe.Pointer(&v)) + offsetPtr)
-	rvf := *(*uintptr)(unsafe.Pointer(uintptr(unsafe.Pointer(&v)) + offsetFlag))
-	if rvf&flagIndir != 0 {
-		vt = reflect.PtrTo(v.Type())
-		indirects++
-	} else if offsetScalar != 0 {
-		// The value is in the scalar field when it's not one of the
-		// reference types.
-		switch vt.Kind() {
-		case reflect.Uintptr:
-		case reflect.Chan:
-		case reflect.Func:
-		case reflect.Map:
-		case reflect.Ptr:
-		case reflect.UnsafePointer:
-		default:
-			upv = unsafe.Pointer(uintptr(unsafe.Pointer(&v)) +
-				offsetScalar)
+func unsafeReflectValue(v reflect.Value) reflect.Value {
+	if !v.IsValid() || (v.CanInterface() && v.CanAddr()) {
+		return v
+	}
+	flagFieldPtr := flagField(&v)
+	*flagFieldPtr &^= flagRO
+	*flagFieldPtr |= flagAddr
+	return v
+}
+
+// Sanity checks against future reflect package changes
+// to the type or semantics of the Value.flag field.
+func init() {
+	field, ok := reflect.TypeOf(reflect.Value{}).FieldByName("flag")
+	if !ok {
+		panic("reflect.Value has no flag field")
+	}
+	if field.Type.Kind() != reflect.TypeOf(flag(0)).Kind() {
+		panic("reflect.Value flag field has changed kind")
+	}
+	type t0 int
+	var t struct {
+		A t0
+		// t0 will have flagEmbedRO set.
+		t0
+		// a will have flagStickyRO set
+		a t0
+	}
+	vA := reflect.ValueOf(t).FieldByName("A")
+	va := reflect.ValueOf(t).FieldByName("a")
+	vt0 := reflect.ValueOf(t).FieldByName("t0")
+
+	// Infer flagRO from the difference between the flags
+	// for the (otherwise identical) fields in t.
+	flagPublic := *flagField(&vA)
+	flagWithRO := *flagField(&va) | *flagField(&vt0)
+	flagRO = flagPublic ^ flagWithRO
+
+	// Infer flagAddr from the difference between a value
+	// taken from a pointer and not.
+	vPtrA := reflect.ValueOf(&t).Elem().FieldByName("A")
+	flagNoPtr := *flagField(&vA)
+	flagPtr := *flagField(&vPtrA)
+	flagAddr = flagNoPtr ^ flagPtr
+
+	// Check that the inferred flags tally with one of the known versions.
+	for _, f := range okFlags {
+		if flagRO == f.ro && flagAddr == f.addr {
+			return
 		}
 	}
-
-	pv := reflect.NewAt(vt, upv)
-	rv = pv
-	for i := 0; i < indirects; i++ {
-		rv = rv.Elem()
-	}
-	return rv
+	panic("reflect.Value read-only flag has changed semantics")
 }
--- a/vendor/github.com/davecgh/go-spew/spew/bypasssafe.go
+++ b/vendor/github.com/davecgh/go-spew/spew/bypasssafe.go
@ -16,7 +16,7 @@
 // when the code is running on Google App Engine, compiled by GopherJS, or
 // "-tags safe" is added to the go build command line.  The "disableunsafe"
 // tag is deprecated and thus should not be used.
-// +build js appengine safe disableunsafe
+// +build js appengine safe disableunsafe !go1.4

 package spew

--- a/vendor/github.com/davecgh/go-spew/spew/common.go
+++ b/vendor/github.com/davecgh/go-spew/spew/common.go
@ -180,7 +180,7 @@ func printComplex(w io.Writer, c complex128, floatPrecision int) {
 	w.Write(closeParenBytes)
 }

-// printHexPtr outputs a uintptr formatted as hexidecimal with a leading '0x'
+// printHexPtr outputs a uintptr formatted as hexadecimal with a leading '0x'
 // prefix to Writer w.
 func printHexPtr(w io.Writer, p uintptr) {
 	// Null pointer.
--- a/vendor/github.com/davecgh/go-spew/spew/dump.go
+++ b/vendor/github.com/davecgh/go-spew/spew/dump.go
@ -35,16 +35,16 @@ var (

 	// cCharRE is a regular expression that matches a cgo char.
 	// It is used to detect character arrays to hexdump them.
-	cCharRE = regexp.MustCompile("^.*\\._Ctype_char$")
+	cCharRE = regexp.MustCompile(`^.*\._Ctype_char$`)

 	// cUnsignedCharRE is a regular expression that matches a cgo unsigned
 	// char.  It is used to detect unsigned character arrays to hexdump
 	// them.
-	cUnsignedCharRE = regexp.MustCompile("^.*\\._Ctype_unsignedchar$")
+	cUnsignedCharRE = regexp.MustCompile(`^.*\._Ctype_unsignedchar$`)

 	// cUint8tCharRE is a regular expression that matches a cgo uint8_t.
 	// It is used to detect uint8_t arrays to hexdump them.
-	cUint8tCharRE = regexp.MustCompile("^.*\\._Ctype_uint8_t$")
+	cUint8tCharRE = regexp.MustCompile(`^.*\._Ctype_uint8_t$`)
 )

 // dumpState contains information about the state of a dump operation.
@ -143,10 +143,10 @@ func (d *dumpState) dumpPtr(v reflect.Value) {
 	// Display dereferenced value.
 	d.w.Write(openParenBytes)
 	switch {
-	case nilFound == true:
+	case nilFound:
 		d.w.Write(nilAngleBytes)

-	case cycleFound == true:
+	case cycleFound:
 		d.w.Write(circularBytes)

 	default:
--- a/vendor/github.com/davecgh/go-spew/spew/format.go
+++ b/vendor/github.com/davecgh/go-spew/spew/format.go
@ -182,10 +182,10 @@ func (f *formatState) formatPtr(v reflect.Value) {

 	// Display dereferenced value.
 	switch {
-	case nilFound == true:
+	case nilFound:
 		f.fs.Write(nilAngleBytes)

-	case cycleFound == true:
+	case cycleFound:
 		f.fs.Write(circularShortBytes)

 	default:
--- a/vendor/github.com/go-xorm/core/benchmark.sh
+++ b/vendor/github.com/go-xorm/core/benchmark.sh
--- a/vendor/github.com/go-xorm/xorm-redis-cache/run_test.sh
+++ b/vendor/github.com/go-xorm/xorm-redis-cache/run_test.sh
--- a/vendor/github.com/go-xorm/xorm/gen_reserved.sh
+++ b/vendor/github.com/go-xorm/xorm/gen_reserved.sh
--- a/vendor/github.com/go-xorm/xorm/test_mssql.sh
+++ b/vendor/github.com/go-xorm/xorm/test_mssql.sh
--- a/vendor/github.com/go-xorm/xorm/test_mssql_cache.sh
+++ b/vendor/github.com/go-xorm/xorm/test_mssql_cache.sh
--- a/vendor/github.com/go-xorm/xorm/test_mymysql.sh
+++ b/vendor/github.com/go-xorm/xorm/test_mymysql.sh
--- a/vendor/github.com/go-xorm/xorm/test_mymysql_cache.sh
+++ b/vendor/github.com/go-xorm/xorm/test_mymysql_cache.sh
--- a/vendor/github.com/go-xorm/xorm/test_mysql.sh
+++ b/vendor/github.com/go-xorm/xorm/test_mysql.sh
--- a/vendor/github.com/go-xorm/xorm/test_mysql_cache.sh
+++ b/vendor/github.com/go-xorm/xorm/test_mysql_cache.sh
--- a/vendor/github.com/go-xorm/xorm/test_postgres.sh
+++ b/vendor/github.com/go-xorm/xorm/test_postgres.sh
--- a/vendor/github.com/go-xorm/xorm/test_postgres_cache.sh
+++ b/vendor/github.com/go-xorm/xorm/test_postgres_cache.sh
--- a/vendor/github.com/go-xorm/xorm/test_sqlite.sh
+++ b/vendor/github.com/go-xorm/xorm/test_sqlite.sh
--- a/vendor/github.com/go-xorm/xorm/test_sqlite_cache.sh
+++ b/vendor/github.com/go-xorm/xorm/test_sqlite_cache.sh
--- a/vendor/github.com/imdario/mergo/testdata/license.yml
+++ b/vendor/github.com/imdario/mergo/testdata/license.yml
@ -1,4 +0,0 @@
-import: ../../../../fossene/db/schema/thing.yml
-fields:
-    site: string
-    author: root
--- a/vendor/github.com/labstack/echo/website/layouts/partials/notice.html
+++ b/vendor/github.com/labstack/echo/website/layouts/partials/notice.html
@ -1,8 +0,0 @@
-<!--<div class="w3-panel w3-pale-green w3-leftbar w3-border-green">
-  <h3>
-    Check out our new project <a href="https://armor.labstack.com">Armor</a>
-  </h3>
-  <p>
-    Uncomplicated, modern HTTP server, supports HTTP/2 and auto TLS
-  </p>
-</div>-->
--- a/vendor/github.com/mitchellh/mapstructure/.travis.yml
+++ b/vendor/github.com/mitchellh/mapstructure/.travis.yml
@ -1,7 +1,7 @@
 language: go

 go:
-  - 1.9.x
+  - "1.11.x"
  - tip

 script:
--- a/vendor/github.com/mitchellh/mapstructure/CHANGELOG.md
+++ b/vendor/github.com/mitchellh/mapstructure/CHANGELOG.md
@ -0,0 +1,21 @@
+## 1.1.2
+
+* Fix error when decode hook decodes interface implementation into interface
+  type. [GH-140]
+
+## 1.1.1
+
+* Fix panic that can happen in `decodePtr`
+
+## 1.1.0
+
+* Added `StringToIPHookFunc` to convert `string` to `net.IP` and `net.IPNet` [GH-133]
+* Support struct to struct decoding [GH-137]
+* If source map value is nil, then destination map value is nil (instead of empty)
+* If source slice value is nil, then destination slice value is nil (instead of empty)
+* If source pointer is nil, then destination pointer is set to nil (instead of
+  allocated zero value of type)
+
+## 1.0.0
+
+* Initial tagged stable release.
--- a/vendor/github.com/mitchellh/mapstructure/decode_hooks.go
+++ b/vendor/github.com/mitchellh/mapstructure/decode_hooks.go
@ -2,6 +2,8 @@ package mapstructure

 import (
 	"errors"
+	"fmt"
+	"net"
 	"reflect"
 	"strconv"
 	"strings"
@ -115,6 +117,50 @@ func StringToTimeDurationHookFunc() DecodeHookFunc {
 	}
 }

+// StringToIPHookFunc returns a DecodeHookFunc that converts
+// strings to net.IP
+func StringToIPHookFunc() DecodeHookFunc {
+	return func(
+		f reflect.Type,
+		t reflect.Type,
+		data interface{}) (interface{}, error) {
+		if f.Kind() != reflect.String {
+			return data, nil
+		}
+		if t != reflect.TypeOf(net.IP{}) {
+			return data, nil
+		}
+
+		// Convert it by parsing
+		ip := net.ParseIP(data.(string))
+		if ip == nil {
+			return net.IP{}, fmt.Errorf("failed parsing ip %v", data)
+		}
+
+		return ip, nil
+	}
+}
+
+// StringToIPNetHookFunc returns a DecodeHookFunc that converts
+// strings to net.IPNet
+func StringToIPNetHookFunc() DecodeHookFunc {
+	return func(
+		f reflect.Type,
+		t reflect.Type,
+		data interface{}) (interface{}, error) {
+		if f.Kind() != reflect.String {
+			return data, nil
+		}
+		if t != reflect.TypeOf(net.IPNet{}) {
+			return data, nil
+		}
+
+		// Convert it by parsing
+		_, net, err := net.ParseCIDR(data.(string))
+		return net, err
+	}
+}
+
 // StringToTimeHookFunc returns a DecodeHookFunc that converts
 // strings to time.Time.
 func StringToTimeHookFunc(layout string) DecodeHookFunc {
--- a/vendor/github.com/mitchellh/mapstructure/mapstructure.go
+++ b/vendor/github.com/mitchellh/mapstructure/mapstructure.go
@ -224,6 +224,17 @@ func (d *Decoder) Decode(input interface{}) error {

 // Decodes an unknown data type into a specific reflection value.
 func (d *Decoder) decode(name string, input interface{}, outVal reflect.Value) error {
+	var inputVal reflect.Value
+	if input != nil {
+		inputVal = reflect.ValueOf(input)
+
+		// We need to check here if input is a typed nil. Typed nils won't
+		// match the "input == nil" below so we check that here.
+		if inputVal.Kind() == reflect.Ptr && inputVal.IsNil() {
+			input = nil
+		}
+	}
+
 	if input == nil {
 		// If the data is nil, then we don't set anything, unless ZeroFields is set
 		// to true.
@ -237,7 +248,6 @@ func (d *Decoder) decode(name string, input interface{}, outVal reflect.Value) e
 		return nil
 	}

-	inputVal := reflect.ValueOf(input)
 	if !inputVal.IsValid() {
 		// If the input value is invalid, then we just set the value
 		// to be the zero value.
@ -260,8 +270,8 @@ func (d *Decoder) decode(name string, input interface{}, outVal reflect.Value) e
 	}

 	var err error
-	inputKind := getKind(outVal)
-	switch inputKind {
+	outputKind := getKind(outVal)
+	switch outputKind {
 	case reflect.Bool:
 		err = d.decodeBool(name, input, outVal)
 	case reflect.Interface:
@ -288,7 +298,7 @@ func (d *Decoder) decode(name string, input interface{}, outVal reflect.Value) e
 		err = d.decodeFunc(name, input, outVal)
 	default:
 		// If we reached this point then we weren't able to decode it
-		return fmt.Errorf("%s: unsupported type: %s", name, inputKind)
+		return fmt.Errorf("%s: unsupported type: %s", name, outputKind)
 	}

 	// If we reached here, then we successfully decoded SOMETHING, so
@ -306,7 +316,16 @@ func (d *Decoder) decodeBasic(name string, data interface{}, val reflect.Value)
 	if val.IsValid() && val.Elem().IsValid() {
 		return d.decode(name, data, val.Elem())
 	}
+
 	dataVal := reflect.ValueOf(data)
+
+	// If the input data is a pointer, and the assigned type is the dereference
+	// of that exact pointer, then indirect it so that we can assign it.
+	// Example: *string to string
+	if dataVal.Kind() == reflect.Ptr && dataVal.Type().Elem() == val.Type() {
+		dataVal = reflect.Indirect(dataVal)
+	}
+
 	if !dataVal.IsValid() {
 		dataVal = reflect.Zero(val.Type())
 	}
@ -323,7 +342,7 @@ func (d *Decoder) decodeBasic(name string, data interface{}, val reflect.Value)
 }

 func (d *Decoder) decodeString(name string, data interface{}, val reflect.Value) error {
-	dataVal := reflect.ValueOf(data)
+	dataVal := reflect.Indirect(reflect.ValueOf(data))
 	dataKind := getKind(dataVal)

 	converted := true
@ -375,7 +394,7 @@ func (d *Decoder) decodeString(name string, data interface{}, val reflect.Value)
 }

 func (d *Decoder) decodeInt(name string, data interface{}, val reflect.Value) error {
-	dataVal := reflect.ValueOf(data)
+	dataVal := reflect.Indirect(reflect.ValueOf(data))
 	dataKind := getKind(dataVal)
 	dataType := dataVal.Type()

@ -417,7 +436,7 @@ func (d *Decoder) decodeInt(name string, data interface{}, val reflect.Value) er
 }

 func (d *Decoder) decodeUint(name string, data interface{}, val reflect.Value) error {
-	dataVal := reflect.ValueOf(data)
+	dataVal := reflect.Indirect(reflect.ValueOf(data))
 	dataKind := getKind(dataVal)

 	switch {
@ -460,7 +479,7 @@ func (d *Decoder) decodeUint(name string, data interface{}, val reflect.Value) e
 }

 func (d *Decoder) decodeBool(name string, data interface{}, val reflect.Value) error {
-	dataVal := reflect.ValueOf(data)
+	dataVal := reflect.Indirect(reflect.ValueOf(data))
 	dataKind := getKind(dataVal)

 	switch {
@ -491,7 +510,7 @@ func (d *Decoder) decodeBool(name string, data interface{}, val reflect.Value) e
 }

 func (d *Decoder) decodeFloat(name string, data interface{}, val reflect.Value) error {
-	dataVal := reflect.ValueOf(data)
+	dataVal := reflect.Indirect(reflect.ValueOf(data))
 	dataKind := getKind(dataVal)
 	dataType := dataVal.Type()

@ -595,6 +614,20 @@ func (d *Decoder) decodeMapFromMap(name string, dataVal reflect.Value, val refle
 	// Accumulate errors
 	errors := make([]string, 0)

+	// If the input data is empty, then we just match what the input data is.
+	if dataVal.Len() == 0 {
+		if dataVal.IsNil() {
+			if !val.IsNil() {
+				val.Set(dataVal)
+			}
+		} else {
+			// Set to empty allocated value
+			val.Set(valMap)
+		}
+
+		return nil
+	}
+
 	for _, k := range dataVal.MapKeys() {
 		fieldName := fmt.Sprintf("%s[%s]", name, k)

@ -706,11 +739,33 @@ func (d *Decoder) decodeMapFromStruct(name string, dataVal reflect.Value, val re
 }

 func (d *Decoder) decodePtr(name string, data interface{}, val reflect.Value) error {
+	// If the input data is nil, then we want to just set the output
+	// pointer to be nil as well.
+	isNil := data == nil
+	if !isNil {
+		switch v := reflect.Indirect(reflect.ValueOf(data)); v.Kind() {
+		case reflect.Chan,
+			reflect.Func,
+			reflect.Interface,
+			reflect.Map,
+			reflect.Ptr,
+			reflect.Slice:
+			isNil = v.IsNil()
+		}
+	}
+	if isNil {
+		if !val.IsNil() && val.CanSet() {
+			nilValue := reflect.New(val.Type()).Elem()
+			val.Set(nilValue)
+		}
+
+		return nil
+	}
+
 	// Create an element of the concrete (non pointer) type and decode
 	// into that. Then set the value of the pointer to this type.
 	valType := val.Type()
 	valElemType := valType.Elem()
-
 	if val.CanSet() {
 		realVal := val
 		if realVal.IsNil() || d.config.ZeroFields {
@ -752,33 +807,44 @@ func (d *Decoder) decodeSlice(name string, data interface{}, val reflect.Value)

 	valSlice := val
 	if valSlice.IsNil() || d.config.ZeroFields {
+		if d.config.WeaklyTypedInput {
+			switch {
+			// Slice and array we use the normal logic
+			case dataValKind == reflect.Slice, dataValKind == reflect.Array:
+				break
+
+			// Empty maps turn into empty slices
+			case dataValKind == reflect.Map:
+				if dataVal.Len() == 0 {
+					val.Set(reflect.MakeSlice(sliceType, 0, 0))
+					return nil
+				}
+				// Create slice of maps of other sizes
+				return d.decodeSlice(name, []interface{}{data}, val)
+
+			case dataValKind == reflect.String && valElemType.Kind() == reflect.Uint8:
+				return d.decodeSlice(name, []byte(dataVal.String()), val)
+
+			// All other types we try to convert to the slice type
+			// and "lift" it into it. i.e. a string becomes a string slice.
+			default:
+				// Just re-try this function with data as a slice.
+				return d.decodeSlice(name, []interface{}{data}, val)
+			}
+		}
+
 		// Check input type
 		if dataValKind != reflect.Array && dataValKind != reflect.Slice {
-			if d.config.WeaklyTypedInput {
-				switch {
-				// Empty maps turn into empty slices
-				case dataValKind == reflect.Map:
-					if dataVal.Len() == 0 {
-						val.Set(reflect.MakeSlice(sliceType, 0, 0))
-						return nil
-					}
-					// Create slice of maps of other sizes
-					return d.decodeSlice(name, []interface{}{data}, val)
-
-				case dataValKind == reflect.String && valElemType.Kind() == reflect.Uint8:
-					return d.decodeSlice(name, []byte(dataVal.String()), val)
-				// All other types we try to convert to the slice type
-				// and "lift" it into it. i.e. a string becomes a string slice.
-				default:
-					// Just re-try this function with data as a slice.
-					return d.decodeSlice(name, []interface{}{data}, val)
-				}
-			}
 			return fmt.Errorf(
 				"'%s': source data must be an array or slice, got %s", name, dataValKind)

 		}

+		// If the input value is empty, then don't allocate since non-nil != nil
+		if dataVal.Len() == 0 {
+			return nil
+		}
+
 		// Make a new slice to hold our result, same size as the original data.
 		valSlice = reflect.MakeSlice(sliceType, dataVal.Len(), dataVal.Len())
 	}
@ -888,10 +954,29 @@ func (d *Decoder) decodeStruct(name string, data interface{}, val reflect.Value)
 	}

 	dataValKind := dataVal.Kind()
-	if dataValKind != reflect.Map {
-		return fmt.Errorf("'%s' expected a map, got '%s'", name, dataValKind)
-	}
+	switch dataValKind {
+	case reflect.Map:
+		return d.decodeStructFromMap(name, dataVal, val)

+	case reflect.Struct:
+		// Not the most efficient way to do this but we can optimize later if
+		// we want to. To convert from struct to struct we go to map first
+		// as an intermediary.
+		m := make(map[string]interface{})
+		mval := reflect.Indirect(reflect.ValueOf(&m))
+		if err := d.decodeMapFromStruct(name, dataVal, mval, mval); err != nil {
+			return err
+		}
+
+		result := d.decodeStructFromMap(name, mval, val)
+		return result
+
+	default:
+		return fmt.Errorf("'%s' expected a map, got '%s'", name, dataVal.Kind())
+	}
+}
+
+func (d *Decoder) decodeStructFromMap(name string, dataVal, val reflect.Value) error {
 	dataValType := dataVal.Type()
 	if kind := dataValType.Key().Kind(); kind != reflect.String && kind != reflect.Interface {
 		return fmt.Errorf(
--- a/vendor/github.com/pelletier/go-toml/benchmark.sh
+++ b/vendor/github.com/pelletier/go-toml/benchmark.sh
--- a/vendor/github.com/pelletier/go-toml/fuzz.sh
+++ b/vendor/github.com/pelletier/go-toml/fuzz.sh
--- a/vendor/github.com/pelletier/go-toml/test.sh
+++ b/vendor/github.com/pelletier/go-toml/test.sh
--- a/vendor/github.com/stretchr/testify/assert/assertion_format.go
+++ b/vendor/github.com/stretchr/testify/assert/assertion_format.go
@ -13,6 +13,9 @@ import (

 // Conditionf uses a Comparison to assert a complex condition.
 func Conditionf(t TestingT, comp Comparison, msg string, args ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	return Condition(t, comp, append([]interface{}{msg}, args...)...)
 }

@ -23,11 +26,17 @@ func Conditionf(t TestingT, comp Comparison, msg string, args ...interface{}) bo
 //    assert.Containsf(t, ["Hello", "World"], "World", "error message %s", "formatted")
 //    assert.Containsf(t, {"Hello": "World"}, "Hello", "error message %s", "formatted")
 func Containsf(t TestingT, s interface{}, contains interface{}, msg string, args ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	return Contains(t, s, contains, append([]interface{}{msg}, args...)...)
 }

 // DirExistsf checks whether a directory exists in the given path. It also fails if the path is a file rather a directory or there is an error checking whether it exists.
 func DirExistsf(t TestingT, path string, msg string, args ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	return DirExists(t, path, append([]interface{}{msg}, args...)...)
 }

@ -35,8 +44,11 @@ func DirExistsf(t TestingT, path string, msg string, args ...interface{}) bool {
 // listB(array, slice...) ignoring the order of the elements. If there are duplicate elements,
 // the number of appearances of each of them in both lists should match.
 //
-// assert.ElementsMatchf(t, [1, 3, 2, 3], [1, 3, 3, 2], "error message %s", "formatted"))
+// assert.ElementsMatchf(t, [1, 3, 2, 3], [1, 3, 3, 2], "error message %s", "formatted")
 func ElementsMatchf(t TestingT, listA interface{}, listB interface{}, msg string, args ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	return ElementsMatch(t, listA, listB, append([]interface{}{msg}, args...)...)
 }

@ -45,6 +57,9 @@ func ElementsMatchf(t TestingT, listA interface{}, listB interface{}, msg string
 //
 //  assert.Emptyf(t, obj, "error message %s", "formatted")
 func Emptyf(t TestingT, object interface{}, msg string, args ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	return Empty(t, object, append([]interface{}{msg}, args...)...)
 }

@ -56,6 +71,9 @@ func Emptyf(t TestingT, object interface{}, msg string, args ...interface{}) boo
 // referenced values (as opposed to the memory addresses). Function equality
 // cannot be determined and will always fail.
 func Equalf(t TestingT, expected interface{}, actual interface{}, msg string, args ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	return Equal(t, expected, actual, append([]interface{}{msg}, args...)...)
 }

@ -65,6 +83,9 @@ func Equalf(t TestingT, expected interface{}, actual interface{}, msg string, ar
 //   actualObj, err := SomeFunction()
 //   assert.EqualErrorf(t, err,  expectedErrorString, "error message %s", "formatted")
 func EqualErrorf(t TestingT, theError error, errString string, msg string, args ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	return EqualError(t, theError, errString, append([]interface{}{msg}, args...)...)
 }

@ -73,6 +94,9 @@ func EqualErrorf(t TestingT, theError error, errString string, msg string, args
 //
 //    assert.EqualValuesf(t, uint32(123, "error message %s", "formatted"), int32(123))
 func EqualValuesf(t TestingT, expected interface{}, actual interface{}, msg string, args ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	return EqualValues(t, expected, actual, append([]interface{}{msg}, args...)...)
 }

@ -83,6 +107,9 @@ func EqualValuesf(t TestingT, expected interface{}, actual interface{}, msg stri
 // 	   assert.Equal(t, expectedErrorf, err)
 //   }
 func Errorf(t TestingT, err error, msg string, args ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	return Error(t, err, append([]interface{}{msg}, args...)...)
 }

@ -90,16 +117,25 @@ func Errorf(t TestingT, err error, msg string, args ...interface{}) bool {
 //
 //    assert.Exactlyf(t, int32(123, "error message %s", "formatted"), int64(123))
 func Exactlyf(t TestingT, expected interface{}, actual interface{}, msg string, args ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	return Exactly(t, expected, actual, append([]interface{}{msg}, args...)...)
 }

 // Failf reports a failure through
 func Failf(t TestingT, failureMessage string, msg string, args ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	return Fail(t, failureMessage, append([]interface{}{msg}, args...)...)
 }

 // FailNowf fails test
 func FailNowf(t TestingT, failureMessage string, msg string, args ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	return FailNow(t, failureMessage, append([]interface{}{msg}, args...)...)
 }

@ -107,31 +143,43 @@ func FailNowf(t TestingT, failureMessage string, msg string, args ...interface{}
 //
 //    assert.Falsef(t, myBool, "error message %s", "formatted")
 func Falsef(t TestingT, value bool, msg string, args ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	return False(t, value, append([]interface{}{msg}, args...)...)
 }

 // FileExistsf checks whether a file exists in the given path. It also fails if the path points to a directory or there is an error when trying to check the file.
 func FileExistsf(t TestingT, path string, msg string, args ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	return FileExists(t, path, append([]interface{}{msg}, args...)...)
 }

 // HTTPBodyContainsf asserts that a specified handler returns a
 // body that contains a string.
 //
-//  assert.HTTPBodyContainsf(t, myHandler, "www.google.com", nil, "I'm Feeling Lucky", "error message %s", "formatted")
+//  assert.HTTPBodyContainsf(t, myHandler, "GET", "www.google.com", nil, "I'm Feeling Lucky", "error message %s", "formatted")
 //
 // Returns whether the assertion was successful (true) or not (false).
 func HTTPBodyContainsf(t TestingT, handler http.HandlerFunc, method string, url string, values url.Values, str interface{}, msg string, args ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	return HTTPBodyContains(t, handler, method, url, values, str, append([]interface{}{msg}, args...)...)
 }

 // HTTPBodyNotContainsf asserts that a specified handler returns a
 // body that does not contain a string.
 //
-//  assert.HTTPBodyNotContainsf(t, myHandler, "www.google.com", nil, "I'm Feeling Lucky", "error message %s", "formatted")
+//  assert.HTTPBodyNotContainsf(t, myHandler, "GET", "www.google.com", nil, "I'm Feeling Lucky", "error message %s", "formatted")
 //
 // Returns whether the assertion was successful (true) or not (false).
 func HTTPBodyNotContainsf(t TestingT, handler http.HandlerFunc, method string, url string, values url.Values, str interface{}, msg string, args ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	return HTTPBodyNotContains(t, handler, method, url, values, str, append([]interface{}{msg}, args...)...)
 }

@ -141,6 +189,9 @@ func HTTPBodyNotContainsf(t TestingT, handler http.HandlerFunc, method string, u
 //
 // Returns whether the assertion was successful (true, "error message %s", "formatted") or not (false).
 func HTTPErrorf(t TestingT, handler http.HandlerFunc, method string, url string, values url.Values, msg string, args ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	return HTTPError(t, handler, method, url, values, append([]interface{}{msg}, args...)...)
 }

@ -150,6 +201,9 @@ func HTTPErrorf(t TestingT, handler http.HandlerFunc, method string, url string,
 //
 // Returns whether the assertion was successful (true, "error message %s", "formatted") or not (false).
 func HTTPRedirectf(t TestingT, handler http.HandlerFunc, method string, url string, values url.Values, msg string, args ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	return HTTPRedirect(t, handler, method, url, values, append([]interface{}{msg}, args...)...)
 }

@ -159,6 +213,9 @@ func HTTPRedirectf(t TestingT, handler http.HandlerFunc, method string, url stri
 //
 // Returns whether the assertion was successful (true) or not (false).
 func HTTPSuccessf(t TestingT, handler http.HandlerFunc, method string, url string, values url.Values, msg string, args ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	return HTTPSuccess(t, handler, method, url, values, append([]interface{}{msg}, args...)...)
 }

@ -166,6 +223,9 @@ func HTTPSuccessf(t TestingT, handler http.HandlerFunc, method string, url strin
 //
 //    assert.Implementsf(t, (*MyInterface, "error message %s", "formatted")(nil), new(MyObject))
 func Implementsf(t TestingT, interfaceObject interface{}, object interface{}, msg string, args ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	return Implements(t, interfaceObject, object, append([]interface{}{msg}, args...)...)
 }

@ -173,31 +233,49 @@ func Implementsf(t TestingT, interfaceObject interface{}, object interface{}, ms
 //
 // 	 assert.InDeltaf(t, math.Pi, (22 / 7.0, "error message %s", "formatted"), 0.01)
 func InDeltaf(t TestingT, expected interface{}, actual interface{}, delta float64, msg string, args ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	return InDelta(t, expected, actual, delta, append([]interface{}{msg}, args...)...)
 }

 // InDeltaMapValuesf is the same as InDelta, but it compares all values between two maps. Both maps must have exactly the same keys.
 func InDeltaMapValuesf(t TestingT, expected interface{}, actual interface{}, delta float64, msg string, args ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	return InDeltaMapValues(t, expected, actual, delta, append([]interface{}{msg}, args...)...)
 }

 // InDeltaSlicef is the same as InDelta, except it compares two slices.
 func InDeltaSlicef(t TestingT, expected interface{}, actual interface{}, delta float64, msg string, args ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	return InDeltaSlice(t, expected, actual, delta, append([]interface{}{msg}, args...)...)
 }

 // InEpsilonf asserts that expected and actual have a relative error less than epsilon
 func InEpsilonf(t TestingT, expected interface{}, actual interface{}, epsilon float64, msg string, args ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	return InEpsilon(t, expected, actual, epsilon, append([]interface{}{msg}, args...)...)
 }

 // InEpsilonSlicef is the same as InEpsilon, except it compares each value from two slices.
 func InEpsilonSlicef(t TestingT, expected interface{}, actual interface{}, epsilon float64, msg string, args ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	return InEpsilonSlice(t, expected, actual, epsilon, append([]interface{}{msg}, args...)...)
 }

 // IsTypef asserts that the specified objects are of the same type.
 func IsTypef(t TestingT, expectedType interface{}, object interface{}, msg string, args ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	return IsType(t, expectedType, object, append([]interface{}{msg}, args...)...)
 }

@ -205,6 +283,9 @@ func IsTypef(t TestingT, expectedType interface{}, object interface{}, msg strin
 //
 //  assert.JSONEqf(t, `{"hello": "world", "foo": "bar"}`, `{"foo": "bar", "hello": "world"}`, "error message %s", "formatted")
 func JSONEqf(t TestingT, expected string, actual string, msg string, args ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	return JSONEq(t, expected, actual, append([]interface{}{msg}, args...)...)
 }

@ -213,6 +294,9 @@ func JSONEqf(t TestingT, expected string, actual string, msg string, args ...int
 //
 //    assert.Lenf(t, mySlice, 3, "error message %s", "formatted")
 func Lenf(t TestingT, object interface{}, length int, msg string, args ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	return Len(t, object, length, append([]interface{}{msg}, args...)...)
 }

@ -220,6 +304,9 @@ func Lenf(t TestingT, object interface{}, length int, msg string, args ...interf
 //
 //    assert.Nilf(t, err, "error message %s", "formatted")
 func Nilf(t TestingT, object interface{}, msg string, args ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	return Nil(t, object, append([]interface{}{msg}, args...)...)
 }

@ -230,6 +317,9 @@ func Nilf(t TestingT, object interface{}, msg string, args ...interface{}) bool
 // 	   assert.Equal(t, expectedObj, actualObj)
 //   }
 func NoErrorf(t TestingT, err error, msg string, args ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	return NoError(t, err, append([]interface{}{msg}, args...)...)
 }

@ -240,6 +330,9 @@ func NoErrorf(t TestingT, err error, msg string, args ...interface{}) bool {
 //    assert.NotContainsf(t, ["Hello", "World"], "Earth", "error message %s", "formatted")
 //    assert.NotContainsf(t, {"Hello": "World"}, "Earth", "error message %s", "formatted")
 func NotContainsf(t TestingT, s interface{}, contains interface{}, msg string, args ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	return NotContains(t, s, contains, append([]interface{}{msg}, args...)...)
 }

@ -250,6 +343,9 @@ func NotContainsf(t TestingT, s interface{}, contains interface{}, msg string, a
 //    assert.Equal(t, "two", obj[1])
 //  }
 func NotEmptyf(t TestingT, object interface{}, msg string, args ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	return NotEmpty(t, object, append([]interface{}{msg}, args...)...)
 }

@ -260,6 +356,9 @@ func NotEmptyf(t TestingT, object interface{}, msg string, args ...interface{})
 // Pointer variable equality is determined based on the equality of the
 // referenced values (as opposed to the memory addresses).
 func NotEqualf(t TestingT, expected interface{}, actual interface{}, msg string, args ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	return NotEqual(t, expected, actual, append([]interface{}{msg}, args...)...)
 }

@ -267,6 +366,9 @@ func NotEqualf(t TestingT, expected interface{}, actual interface{}, msg string,
 //
 //    assert.NotNilf(t, err, "error message %s", "formatted")
 func NotNilf(t TestingT, object interface{}, msg string, args ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	return NotNil(t, object, append([]interface{}{msg}, args...)...)
 }

@ -274,6 +376,9 @@ func NotNilf(t TestingT, object interface{}, msg string, args ...interface{}) bo
 //
 //   assert.NotPanicsf(t, func(){ RemainCalm() }, "error message %s", "formatted")
 func NotPanicsf(t TestingT, f PanicTestFunc, msg string, args ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	return NotPanics(t, f, append([]interface{}{msg}, args...)...)
 }

@ -282,6 +387,9 @@ func NotPanicsf(t TestingT, f PanicTestFunc, msg string, args ...interface{}) bo
 //  assert.NotRegexpf(t, regexp.MustCompile("starts", "error message %s", "formatted"), "it's starting")
 //  assert.NotRegexpf(t, "^start", "it's not starting", "error message %s", "formatted")
 func NotRegexpf(t TestingT, rx interface{}, str interface{}, msg string, args ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	return NotRegexp(t, rx, str, append([]interface{}{msg}, args...)...)
 }

@ -290,11 +398,17 @@ func NotRegexpf(t TestingT, rx interface{}, str interface{}, msg string, args ..
 //
 //    assert.NotSubsetf(t, [1, 3, 4], [1, 2], "But [1, 3, 4] does not contain [1, 2]", "error message %s", "formatted")
 func NotSubsetf(t TestingT, list interface{}, subset interface{}, msg string, args ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	return NotSubset(t, list, subset, append([]interface{}{msg}, args...)...)
 }

 // NotZerof asserts that i is not the zero value for its type.
 func NotZerof(t TestingT, i interface{}, msg string, args ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	return NotZero(t, i, append([]interface{}{msg}, args...)...)
 }

@ -302,6 +416,9 @@ func NotZerof(t TestingT, i interface{}, msg string, args ...interface{}) bool {
 //
 //   assert.Panicsf(t, func(){ GoCrazy() }, "error message %s", "formatted")
 func Panicsf(t TestingT, f PanicTestFunc, msg string, args ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	return Panics(t, f, append([]interface{}{msg}, args...)...)
 }

@ -310,6 +427,9 @@ func Panicsf(t TestingT, f PanicTestFunc, msg string, args ...interface{}) bool
 //
 //   assert.PanicsWithValuef(t, "crazy error", func(){ GoCrazy() }, "error message %s", "formatted")
 func PanicsWithValuef(t TestingT, expected interface{}, f PanicTestFunc, msg string, args ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	return PanicsWithValue(t, expected, f, append([]interface{}{msg}, args...)...)
 }

@ -318,6 +438,9 @@ func PanicsWithValuef(t TestingT, expected interface{}, f PanicTestFunc, msg str
 //  assert.Regexpf(t, regexp.MustCompile("start", "error message %s", "formatted"), "it's starting")
 //  assert.Regexpf(t, "start...$", "it's not starting", "error message %s", "formatted")
 func Regexpf(t TestingT, rx interface{}, str interface{}, msg string, args ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	return Regexp(t, rx, str, append([]interface{}{msg}, args...)...)
 }

@ -326,6 +449,9 @@ func Regexpf(t TestingT, rx interface{}, str interface{}, msg string, args ...in
 //
 //    assert.Subsetf(t, [1, 2, 3], [1, 2], "But [1, 2, 3] does contain [1, 2]", "error message %s", "formatted")
 func Subsetf(t TestingT, list interface{}, subset interface{}, msg string, args ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	return Subset(t, list, subset, append([]interface{}{msg}, args...)...)
 }

@ -333,6 +459,9 @@ func Subsetf(t TestingT, list interface{}, subset interface{}, msg string, args
 //
 //    assert.Truef(t, myBool, "error message %s", "formatted")
 func Truef(t TestingT, value bool, msg string, args ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	return True(t, value, append([]interface{}{msg}, args...)...)
 }

@ -340,10 +469,16 @@ func Truef(t TestingT, value bool, msg string, args ...interface{}) bool {
 //
 //   assert.WithinDurationf(t, time.Now(), time.Now(), 10*time.Second, "error message %s", "formatted")
 func WithinDurationf(t TestingT, expected time.Time, actual time.Time, delta time.Duration, msg string, args ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	return WithinDuration(t, expected, actual, delta, append([]interface{}{msg}, args...)...)
 }

 // Zerof asserts that i is the zero value for its type.
 func Zerof(t TestingT, i interface{}, msg string, args ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	return Zero(t, i, append([]interface{}{msg}, args...)...)
 }
--- a/vendor/github.com/stretchr/testify/assert/assertion_format.go.tmpl
+++ b/vendor/github.com/stretchr/testify/assert/assertion_format.go.tmpl
@ -1,4 +1,5 @@
 {{.CommentFormat}}
 func {{.DocInfo.Name}}f(t TestingT, {{.ParamsFormat}}) bool {
+	if h, ok := t.(tHelper); ok { h.Helper() }
 	return {{.DocInfo.Name}}(t, {{.ForwardedParamsFormat}})
 }
--- a/vendor/github.com/stretchr/testify/assert/assertion_forward.go
+++ b/vendor/github.com/stretchr/testify/assert/assertion_forward.go
@ -13,11 +13,17 @@ import (

 // Condition uses a Comparison to assert a complex condition.
 func (a *Assertions) Condition(comp Comparison, msgAndArgs ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return Condition(a.t, comp, msgAndArgs...)
 }

 // Conditionf uses a Comparison to assert a complex condition.
 func (a *Assertions) Conditionf(comp Comparison, msg string, args ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return Conditionf(a.t, comp, msg, args...)
 }

@ -28,6 +34,9 @@ func (a *Assertions) Conditionf(comp Comparison, msg string, args ...interface{}
 //    a.Contains(["Hello", "World"], "World")
 //    a.Contains({"Hello": "World"}, "Hello")
 func (a *Assertions) Contains(s interface{}, contains interface{}, msgAndArgs ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return Contains(a.t, s, contains, msgAndArgs...)
 }

@ -38,16 +47,25 @@ func (a *Assertions) Contains(s interface{}, contains interface{}, msgAndArgs ..
 //    a.Containsf(["Hello", "World"], "World", "error message %s", "formatted")
 //    a.Containsf({"Hello": "World"}, "Hello", "error message %s", "formatted")
 func (a *Assertions) Containsf(s interface{}, contains interface{}, msg string, args ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return Containsf(a.t, s, contains, msg, args...)
 }

 // DirExists checks whether a directory exists in the given path. It also fails if the path is a file rather a directory or there is an error checking whether it exists.
 func (a *Assertions) DirExists(path string, msgAndArgs ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return DirExists(a.t, path, msgAndArgs...)
 }

 // DirExistsf checks whether a directory exists in the given path. It also fails if the path is a file rather a directory or there is an error checking whether it exists.
 func (a *Assertions) DirExistsf(path string, msg string, args ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return DirExistsf(a.t, path, msg, args...)
 }

@ -55,8 +73,11 @@ func (a *Assertions) DirExistsf(path string, msg string, args ...interface{}) bo
 // listB(array, slice...) ignoring the order of the elements. If there are duplicate elements,
 // the number of appearances of each of them in both lists should match.
 //
-// a.ElementsMatch([1, 3, 2, 3], [1, 3, 3, 2]))
+// a.ElementsMatch([1, 3, 2, 3], [1, 3, 3, 2])
 func (a *Assertions) ElementsMatch(listA interface{}, listB interface{}, msgAndArgs ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return ElementsMatch(a.t, listA, listB, msgAndArgs...)
 }

@ -64,8 +85,11 @@ func (a *Assertions) ElementsMatch(listA interface{}, listB interface{}, msgAndA
 // listB(array, slice...) ignoring the order of the elements. If there are duplicate elements,
 // the number of appearances of each of them in both lists should match.
 //
-// a.ElementsMatchf([1, 3, 2, 3], [1, 3, 3, 2], "error message %s", "formatted"))
+// a.ElementsMatchf([1, 3, 2, 3], [1, 3, 3, 2], "error message %s", "formatted")
 func (a *Assertions) ElementsMatchf(listA interface{}, listB interface{}, msg string, args ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return ElementsMatchf(a.t, listA, listB, msg, args...)
 }

@ -74,6 +98,9 @@ func (a *Assertions) ElementsMatchf(listA interface{}, listB interface{}, msg st
 //
 //  a.Empty(obj)
 func (a *Assertions) Empty(object interface{}, msgAndArgs ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return Empty(a.t, object, msgAndArgs...)
 }

@ -82,6 +109,9 @@ func (a *Assertions) Empty(object interface{}, msgAndArgs ...interface{}) bool {
 //
 //  a.Emptyf(obj, "error message %s", "formatted")
 func (a *Assertions) Emptyf(object interface{}, msg string, args ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return Emptyf(a.t, object, msg, args...)
 }

@ -93,6 +123,9 @@ func (a *Assertions) Emptyf(object interface{}, msg string, args ...interface{})
 // referenced values (as opposed to the memory addresses). Function equality
 // cannot be determined and will always fail.
 func (a *Assertions) Equal(expected interface{}, actual interface{}, msgAndArgs ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return Equal(a.t, expected, actual, msgAndArgs...)
 }

@ -102,6 +135,9 @@ func (a *Assertions) Equal(expected interface{}, actual interface{}, msgAndArgs
 //   actualObj, err := SomeFunction()
 //   a.EqualError(err,  expectedErrorString)
 func (a *Assertions) EqualError(theError error, errString string, msgAndArgs ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return EqualError(a.t, theError, errString, msgAndArgs...)
 }

@ -111,6 +147,9 @@ func (a *Assertions) EqualError(theError error, errString string, msgAndArgs ...
 //   actualObj, err := SomeFunction()
 //   a.EqualErrorf(err,  expectedErrorString, "error message %s", "formatted")
 func (a *Assertions) EqualErrorf(theError error, errString string, msg string, args ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return EqualErrorf(a.t, theError, errString, msg, args...)
 }

@ -119,6 +158,9 @@ func (a *Assertions) EqualErrorf(theError error, errString string, msg string, a
 //
 //    a.EqualValues(uint32(123), int32(123))
 func (a *Assertions) EqualValues(expected interface{}, actual interface{}, msgAndArgs ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return EqualValues(a.t, expected, actual, msgAndArgs...)
 }

@ -127,6 +169,9 @@ func (a *Assertions) EqualValues(expected interface{}, actual interface{}, msgAn
 //
 //    a.EqualValuesf(uint32(123, "error message %s", "formatted"), int32(123))
 func (a *Assertions) EqualValuesf(expected interface{}, actual interface{}, msg string, args ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return EqualValuesf(a.t, expected, actual, msg, args...)
 }

@ -138,6 +183,9 @@ func (a *Assertions) EqualValuesf(expected interface{}, actual interface{}, msg
 // referenced values (as opposed to the memory addresses). Function equality
 // cannot be determined and will always fail.
 func (a *Assertions) Equalf(expected interface{}, actual interface{}, msg string, args ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return Equalf(a.t, expected, actual, msg, args...)
 }

@ -148,6 +196,9 @@ func (a *Assertions) Equalf(expected interface{}, actual interface{}, msg string
 // 	   assert.Equal(t, expectedError, err)
 //   }
 func (a *Assertions) Error(err error, msgAndArgs ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return Error(a.t, err, msgAndArgs...)
 }

@ -158,6 +209,9 @@ func (a *Assertions) Error(err error, msgAndArgs ...interface{}) bool {
 // 	   assert.Equal(t, expectedErrorf, err)
 //   }
 func (a *Assertions) Errorf(err error, msg string, args ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return Errorf(a.t, err, msg, args...)
 }

@ -165,6 +219,9 @@ func (a *Assertions) Errorf(err error, msg string, args ...interface{}) bool {
 //
 //    a.Exactly(int32(123), int64(123))
 func (a *Assertions) Exactly(expected interface{}, actual interface{}, msgAndArgs ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return Exactly(a.t, expected, actual, msgAndArgs...)
 }

@ -172,26 +229,41 @@ func (a *Assertions) Exactly(expected interface{}, actual interface{}, msgAndArg
 //
 //    a.Exactlyf(int32(123, "error message %s", "formatted"), int64(123))
 func (a *Assertions) Exactlyf(expected interface{}, actual interface{}, msg string, args ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return Exactlyf(a.t, expected, actual, msg, args...)
 }

 // Fail reports a failure through
 func (a *Assertions) Fail(failureMessage string, msgAndArgs ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return Fail(a.t, failureMessage, msgAndArgs...)
 }

 // FailNow fails test
 func (a *Assertions) FailNow(failureMessage string, msgAndArgs ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return FailNow(a.t, failureMessage, msgAndArgs...)
 }

 // FailNowf fails test
 func (a *Assertions) FailNowf(failureMessage string, msg string, args ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return FailNowf(a.t, failureMessage, msg, args...)
 }

 // Failf reports a failure through
 func (a *Assertions) Failf(failureMessage string, msg string, args ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return Failf(a.t, failureMessage, msg, args...)
 }

@ -199,6 +271,9 @@ func (a *Assertions) Failf(failureMessage string, msg string, args ...interface{
 //
 //    a.False(myBool)
 func (a *Assertions) False(value bool, msgAndArgs ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return False(a.t, value, msgAndArgs...)
 }

@ -206,56 +281,77 @@ func (a *Assertions) False(value bool, msgAndArgs ...interface{}) bool {
 //
 //    a.Falsef(myBool, "error message %s", "formatted")
 func (a *Assertions) Falsef(value bool, msg string, args ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return Falsef(a.t, value, msg, args...)
 }

 // FileExists checks whether a file exists in the given path. It also fails if the path points to a directory or there is an error when trying to check the file.
 func (a *Assertions) FileExists(path string, msgAndArgs ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return FileExists(a.t, path, msgAndArgs...)
 }

 // FileExistsf checks whether a file exists in the given path. It also fails if the path points to a directory or there is an error when trying to check the file.
 func (a *Assertions) FileExistsf(path string, msg string, args ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return FileExistsf(a.t, path, msg, args...)
 }

 // HTTPBodyContains asserts that a specified handler returns a
 // body that contains a string.
 //
-//  a.HTTPBodyContains(myHandler, "www.google.com", nil, "I'm Feeling Lucky")
+//  a.HTTPBodyContains(myHandler, "GET", "www.google.com", nil, "I'm Feeling Lucky")
 //
 // Returns whether the assertion was successful (true) or not (false).
 func (a *Assertions) HTTPBodyContains(handler http.HandlerFunc, method string, url string, values url.Values, str interface{}, msgAndArgs ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return HTTPBodyContains(a.t, handler, method, url, values, str, msgAndArgs...)
 }

 // HTTPBodyContainsf asserts that a specified handler returns a
 // body that contains a string.
 //
-//  a.HTTPBodyContainsf(myHandler, "www.google.com", nil, "I'm Feeling Lucky", "error message %s", "formatted")
+//  a.HTTPBodyContainsf(myHandler, "GET", "www.google.com", nil, "I'm Feeling Lucky", "error message %s", "formatted")
 //
 // Returns whether the assertion was successful (true) or not (false).
 func (a *Assertions) HTTPBodyContainsf(handler http.HandlerFunc, method string, url string, values url.Values, str interface{}, msg string, args ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return HTTPBodyContainsf(a.t, handler, method, url, values, str, msg, args...)
 }

 // HTTPBodyNotContains asserts that a specified handler returns a
 // body that does not contain a string.
 //
-//  a.HTTPBodyNotContains(myHandler, "www.google.com", nil, "I'm Feeling Lucky")
+//  a.HTTPBodyNotContains(myHandler, "GET", "www.google.com", nil, "I'm Feeling Lucky")
 //
 // Returns whether the assertion was successful (true) or not (false).
 func (a *Assertions) HTTPBodyNotContains(handler http.HandlerFunc, method string, url string, values url.Values, str interface{}, msgAndArgs ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return HTTPBodyNotContains(a.t, handler, method, url, values, str, msgAndArgs...)
 }

 // HTTPBodyNotContainsf asserts that a specified handler returns a
 // body that does not contain a string.
 //
-//  a.HTTPBodyNotContainsf(myHandler, "www.google.com", nil, "I'm Feeling Lucky", "error message %s", "formatted")
+//  a.HTTPBodyNotContainsf(myHandler, "GET", "www.google.com", nil, "I'm Feeling Lucky", "error message %s", "formatted")
 //
 // Returns whether the assertion was successful (true) or not (false).
 func (a *Assertions) HTTPBodyNotContainsf(handler http.HandlerFunc, method string, url string, values url.Values, str interface{}, msg string, args ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return HTTPBodyNotContainsf(a.t, handler, method, url, values, str, msg, args...)
 }

@ -265,6 +361,9 @@ func (a *Assertions) HTTPBodyNotContainsf(handler http.HandlerFunc, method strin
 //
 // Returns whether the assertion was successful (true) or not (false).
 func (a *Assertions) HTTPError(handler http.HandlerFunc, method string, url string, values url.Values, msgAndArgs ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return HTTPError(a.t, handler, method, url, values, msgAndArgs...)
 }

@ -274,6 +373,9 @@ func (a *Assertions) HTTPError(handler http.HandlerFunc, method string, url stri
 //
 // Returns whether the assertion was successful (true, "error message %s", "formatted") or not (false).
 func (a *Assertions) HTTPErrorf(handler http.HandlerFunc, method string, url string, values url.Values, msg string, args ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return HTTPErrorf(a.t, handler, method, url, values, msg, args...)
 }

@ -283,6 +385,9 @@ func (a *Assertions) HTTPErrorf(handler http.HandlerFunc, method string, url str
 //
 // Returns whether the assertion was successful (true) or not (false).
 func (a *Assertions) HTTPRedirect(handler http.HandlerFunc, method string, url string, values url.Values, msgAndArgs ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return HTTPRedirect(a.t, handler, method, url, values, msgAndArgs...)
 }

@ -292,6 +397,9 @@ func (a *Assertions) HTTPRedirect(handler http.HandlerFunc, method string, url s
 //
 // Returns whether the assertion was successful (true, "error message %s", "formatted") or not (false).
 func (a *Assertions) HTTPRedirectf(handler http.HandlerFunc, method string, url string, values url.Values, msg string, args ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return HTTPRedirectf(a.t, handler, method, url, values, msg, args...)
 }

@ -301,6 +409,9 @@ func (a *Assertions) HTTPRedirectf(handler http.HandlerFunc, method string, url
 //
 // Returns whether the assertion was successful (true) or not (false).
 func (a *Assertions) HTTPSuccess(handler http.HandlerFunc, method string, url string, values url.Values, msgAndArgs ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return HTTPSuccess(a.t, handler, method, url, values, msgAndArgs...)
 }

@ -310,6 +421,9 @@ func (a *Assertions) HTTPSuccess(handler http.HandlerFunc, method string, url st
 //
 // Returns whether the assertion was successful (true) or not (false).
 func (a *Assertions) HTTPSuccessf(handler http.HandlerFunc, method string, url string, values url.Values, msg string, args ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return HTTPSuccessf(a.t, handler, method, url, values, msg, args...)
 }

@ -317,6 +431,9 @@ func (a *Assertions) HTTPSuccessf(handler http.HandlerFunc, method string, url s
 //
 //    a.Implements((*MyInterface)(nil), new(MyObject))
 func (a *Assertions) Implements(interfaceObject interface{}, object interface{}, msgAndArgs ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return Implements(a.t, interfaceObject, object, msgAndArgs...)
 }

@ -324,6 +441,9 @@ func (a *Assertions) Implements(interfaceObject interface{}, object interface{},
 //
 //    a.Implementsf((*MyInterface, "error message %s", "formatted")(nil), new(MyObject))
 func (a *Assertions) Implementsf(interfaceObject interface{}, object interface{}, msg string, args ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return Implementsf(a.t, interfaceObject, object, msg, args...)
 }

@ -331,26 +451,41 @@ func (a *Assertions) Implementsf(interfaceObject interface{}, object interface{}
 //
 // 	 a.InDelta(math.Pi, (22 / 7.0), 0.01)
 func (a *Assertions) InDelta(expected interface{}, actual interface{}, delta float64, msgAndArgs ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return InDelta(a.t, expected, actual, delta, msgAndArgs...)
 }

 // InDeltaMapValues is the same as InDelta, but it compares all values between two maps. Both maps must have exactly the same keys.
 func (a *Assertions) InDeltaMapValues(expected interface{}, actual interface{}, delta float64, msgAndArgs ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return InDeltaMapValues(a.t, expected, actual, delta, msgAndArgs...)
 }

 // InDeltaMapValuesf is the same as InDelta, but it compares all values between two maps. Both maps must have exactly the same keys.
 func (a *Assertions) InDeltaMapValuesf(expected interface{}, actual interface{}, delta float64, msg string, args ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return InDeltaMapValuesf(a.t, expected, actual, delta, msg, args...)
 }

 // InDeltaSlice is the same as InDelta, except it compares two slices.
 func (a *Assertions) InDeltaSlice(expected interface{}, actual interface{}, delta float64, msgAndArgs ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return InDeltaSlice(a.t, expected, actual, delta, msgAndArgs...)
 }

 // InDeltaSlicef is the same as InDelta, except it compares two slices.
 func (a *Assertions) InDeltaSlicef(expected interface{}, actual interface{}, delta float64, msg string, args ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return InDeltaSlicef(a.t, expected, actual, delta, msg, args...)
 }

@ -358,36 +493,57 @@ func (a *Assertions) InDeltaSlicef(expected interface{}, actual interface{}, del
 //
 // 	 a.InDeltaf(math.Pi, (22 / 7.0, "error message %s", "formatted"), 0.01)
 func (a *Assertions) InDeltaf(expected interface{}, actual interface{}, delta float64, msg string, args ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return InDeltaf(a.t, expected, actual, delta, msg, args...)
 }

 // InEpsilon asserts that expected and actual have a relative error less than epsilon
 func (a *Assertions) InEpsilon(expected interface{}, actual interface{}, epsilon float64, msgAndArgs ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return InEpsilon(a.t, expected, actual, epsilon, msgAndArgs...)
 }

 // InEpsilonSlice is the same as InEpsilon, except it compares each value from two slices.
 func (a *Assertions) InEpsilonSlice(expected interface{}, actual interface{}, epsilon float64, msgAndArgs ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return InEpsilonSlice(a.t, expected, actual, epsilon, msgAndArgs...)
 }

 // InEpsilonSlicef is the same as InEpsilon, except it compares each value from two slices.
 func (a *Assertions) InEpsilonSlicef(expected interface{}, actual interface{}, epsilon float64, msg string, args ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return InEpsilonSlicef(a.t, expected, actual, epsilon, msg, args...)
 }

 // InEpsilonf asserts that expected and actual have a relative error less than epsilon
 func (a *Assertions) InEpsilonf(expected interface{}, actual interface{}, epsilon float64, msg string, args ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return InEpsilonf(a.t, expected, actual, epsilon, msg, args...)
 }

 // IsType asserts that the specified objects are of the same type.
 func (a *Assertions) IsType(expectedType interface{}, object interface{}, msgAndArgs ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return IsType(a.t, expectedType, object, msgAndArgs...)
 }

 // IsTypef asserts that the specified objects are of the same type.
 func (a *Assertions) IsTypef(expectedType interface{}, object interface{}, msg string, args ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return IsTypef(a.t, expectedType, object, msg, args...)
 }

@ -395,6 +551,9 @@ func (a *Assertions) IsTypef(expectedType interface{}, object interface{}, msg s
 //
 //  a.JSONEq(`{"hello": "world", "foo": "bar"}`, `{"foo": "bar", "hello": "world"}`)
 func (a *Assertions) JSONEq(expected string, actual string, msgAndArgs ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return JSONEq(a.t, expected, actual, msgAndArgs...)
 }

@ -402,6 +561,9 @@ func (a *Assertions) JSONEq(expected string, actual string, msgAndArgs ...interf
 //
 //  a.JSONEqf(`{"hello": "world", "foo": "bar"}`, `{"foo": "bar", "hello": "world"}`, "error message %s", "formatted")
 func (a *Assertions) JSONEqf(expected string, actual string, msg string, args ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return JSONEqf(a.t, expected, actual, msg, args...)
 }

@ -410,6 +572,9 @@ func (a *Assertions) JSONEqf(expected string, actual string, msg string, args ..
 //
 //    a.Len(mySlice, 3)
 func (a *Assertions) Len(object interface{}, length int, msgAndArgs ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return Len(a.t, object, length, msgAndArgs...)
 }

@ -418,6 +583,9 @@ func (a *Assertions) Len(object interface{}, length int, msgAndArgs ...interface
 //
 //    a.Lenf(mySlice, 3, "error message %s", "formatted")
 func (a *Assertions) Lenf(object interface{}, length int, msg string, args ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return Lenf(a.t, object, length, msg, args...)
 }

@ -425,6 +593,9 @@ func (a *Assertions) Lenf(object interface{}, length int, msg string, args ...in
 //
 //    a.Nil(err)
 func (a *Assertions) Nil(object interface{}, msgAndArgs ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return Nil(a.t, object, msgAndArgs...)
 }

@ -432,6 +603,9 @@ func (a *Assertions) Nil(object interface{}, msgAndArgs ...interface{}) bool {
 //
 //    a.Nilf(err, "error message %s", "formatted")
 func (a *Assertions) Nilf(object interface{}, msg string, args ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return Nilf(a.t, object, msg, args...)
 }

@ -442,6 +616,9 @@ func (a *Assertions) Nilf(object interface{}, msg string, args ...interface{}) b
 // 	   assert.Equal(t, expectedObj, actualObj)
 //   }
 func (a *Assertions) NoError(err error, msgAndArgs ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return NoError(a.t, err, msgAndArgs...)
 }

@ -452,6 +629,9 @@ func (a *Assertions) NoError(err error, msgAndArgs ...interface{}) bool {
 // 	   assert.Equal(t, expectedObj, actualObj)
 //   }
 func (a *Assertions) NoErrorf(err error, msg string, args ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return NoErrorf(a.t, err, msg, args...)
 }

@ -462,6 +642,9 @@ func (a *Assertions) NoErrorf(err error, msg string, args ...interface{}) bool {
 //    a.NotContains(["Hello", "World"], "Earth")
 //    a.NotContains({"Hello": "World"}, "Earth")
 func (a *Assertions) NotContains(s interface{}, contains interface{}, msgAndArgs ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return NotContains(a.t, s, contains, msgAndArgs...)
 }

@ -472,6 +655,9 @@ func (a *Assertions) NotContains(s interface{}, contains interface{}, msgAndArgs
 //    a.NotContainsf(["Hello", "World"], "Earth", "error message %s", "formatted")
 //    a.NotContainsf({"Hello": "World"}, "Earth", "error message %s", "formatted")
 func (a *Assertions) NotContainsf(s interface{}, contains interface{}, msg string, args ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return NotContainsf(a.t, s, contains, msg, args...)
 }

@ -482,6 +668,9 @@ func (a *Assertions) NotContainsf(s interface{}, contains interface{}, msg strin
 //    assert.Equal(t, "two", obj[1])
 //  }
 func (a *Assertions) NotEmpty(object interface{}, msgAndArgs ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return NotEmpty(a.t, object, msgAndArgs...)
 }

@ -492,6 +681,9 @@ func (a *Assertions) NotEmpty(object interface{}, msgAndArgs ...interface{}) boo
 //    assert.Equal(t, "two", obj[1])
 //  }
 func (a *Assertions) NotEmptyf(object interface{}, msg string, args ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return NotEmptyf(a.t, object, msg, args...)
 }

@ -502,6 +694,9 @@ func (a *Assertions) NotEmptyf(object interface{}, msg string, args ...interface
 // Pointer variable equality is determined based on the equality of the
 // referenced values (as opposed to the memory addresses).
 func (a *Assertions) NotEqual(expected interface{}, actual interface{}, msgAndArgs ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return NotEqual(a.t, expected, actual, msgAndArgs...)
 }

@ -512,6 +707,9 @@ func (a *Assertions) NotEqual(expected interface{}, actual interface{}, msgAndAr
 // Pointer variable equality is determined based on the equality of the
 // referenced values (as opposed to the memory addresses).
 func (a *Assertions) NotEqualf(expected interface{}, actual interface{}, msg string, args ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return NotEqualf(a.t, expected, actual, msg, args...)
 }

@ -519,6 +717,9 @@ func (a *Assertions) NotEqualf(expected interface{}, actual interface{}, msg str
 //
 //    a.NotNil(err)
 func (a *Assertions) NotNil(object interface{}, msgAndArgs ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return NotNil(a.t, object, msgAndArgs...)
 }

@ -526,6 +727,9 @@ func (a *Assertions) NotNil(object interface{}, msgAndArgs ...interface{}) bool
 //
 //    a.NotNilf(err, "error message %s", "formatted")
 func (a *Assertions) NotNilf(object interface{}, msg string, args ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return NotNilf(a.t, object, msg, args...)
 }

@ -533,6 +737,9 @@ func (a *Assertions) NotNilf(object interface{}, msg string, args ...interface{}
 //
 //   a.NotPanics(func(){ RemainCalm() })
 func (a *Assertions) NotPanics(f PanicTestFunc, msgAndArgs ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return NotPanics(a.t, f, msgAndArgs...)
 }

@ -540,6 +747,9 @@ func (a *Assertions) NotPanics(f PanicTestFunc, msgAndArgs ...interface{}) bool
 //
 //   a.NotPanicsf(func(){ RemainCalm() }, "error message %s", "formatted")
 func (a *Assertions) NotPanicsf(f PanicTestFunc, msg string, args ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return NotPanicsf(a.t, f, msg, args...)
 }

@ -548,6 +758,9 @@ func (a *Assertions) NotPanicsf(f PanicTestFunc, msg string, args ...interface{}
 //  a.NotRegexp(regexp.MustCompile("starts"), "it's starting")
 //  a.NotRegexp("^start", "it's not starting")
 func (a *Assertions) NotRegexp(rx interface{}, str interface{}, msgAndArgs ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return NotRegexp(a.t, rx, str, msgAndArgs...)
 }

@ -556,6 +769,9 @@ func (a *Assertions) NotRegexp(rx interface{}, str interface{}, msgAndArgs ...in
 //  a.NotRegexpf(regexp.MustCompile("starts", "error message %s", "formatted"), "it's starting")
 //  a.NotRegexpf("^start", "it's not starting", "error message %s", "formatted")
 func (a *Assertions) NotRegexpf(rx interface{}, str interface{}, msg string, args ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return NotRegexpf(a.t, rx, str, msg, args...)
 }

@ -564,6 +780,9 @@ func (a *Assertions) NotRegexpf(rx interface{}, str interface{}, msg string, arg
 //
 //    a.NotSubset([1, 3, 4], [1, 2], "But [1, 3, 4] does not contain [1, 2]")
 func (a *Assertions) NotSubset(list interface{}, subset interface{}, msgAndArgs ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return NotSubset(a.t, list, subset, msgAndArgs...)
 }

@ -572,16 +791,25 @@ func (a *Assertions) NotSubset(list interface{}, subset interface{}, msgAndArgs
 //
 //    a.NotSubsetf([1, 3, 4], [1, 2], "But [1, 3, 4] does not contain [1, 2]", "error message %s", "formatted")
 func (a *Assertions) NotSubsetf(list interface{}, subset interface{}, msg string, args ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return NotSubsetf(a.t, list, subset, msg, args...)
 }

 // NotZero asserts that i is not the zero value for its type.
 func (a *Assertions) NotZero(i interface{}, msgAndArgs ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return NotZero(a.t, i, msgAndArgs...)
 }

 // NotZerof asserts that i is not the zero value for its type.
 func (a *Assertions) NotZerof(i interface{}, msg string, args ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return NotZerof(a.t, i, msg, args...)
 }

@ -589,6 +817,9 @@ func (a *Assertions) NotZerof(i interface{}, msg string, args ...interface{}) bo
 //
 //   a.Panics(func(){ GoCrazy() })
 func (a *Assertions) Panics(f PanicTestFunc, msgAndArgs ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return Panics(a.t, f, msgAndArgs...)
 }

@ -597,6 +828,9 @@ func (a *Assertions) Panics(f PanicTestFunc, msgAndArgs ...interface{}) bool {
 //
 //   a.PanicsWithValue("crazy error", func(){ GoCrazy() })
 func (a *Assertions) PanicsWithValue(expected interface{}, f PanicTestFunc, msgAndArgs ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return PanicsWithValue(a.t, expected, f, msgAndArgs...)
 }

@ -605,6 +839,9 @@ func (a *Assertions) PanicsWithValue(expected interface{}, f PanicTestFunc, msgA
 //
 //   a.PanicsWithValuef("crazy error", func(){ GoCrazy() }, "error message %s", "formatted")
 func (a *Assertions) PanicsWithValuef(expected interface{}, f PanicTestFunc, msg string, args ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return PanicsWithValuef(a.t, expected, f, msg, args...)
 }

@ -612,6 +849,9 @@ func (a *Assertions) PanicsWithValuef(expected interface{}, f PanicTestFunc, msg
 //
 //   a.Panicsf(func(){ GoCrazy() }, "error message %s", "formatted")
 func (a *Assertions) Panicsf(f PanicTestFunc, msg string, args ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return Panicsf(a.t, f, msg, args...)
 }

@ -620,6 +860,9 @@ func (a *Assertions) Panicsf(f PanicTestFunc, msg string, args ...interface{}) b
 //  a.Regexp(regexp.MustCompile("start"), "it's starting")
 //  a.Regexp("start...$", "it's not starting")
 func (a *Assertions) Regexp(rx interface{}, str interface{}, msgAndArgs ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return Regexp(a.t, rx, str, msgAndArgs...)
 }

@ -628,6 +871,9 @@ func (a *Assertions) Regexp(rx interface{}, str interface{}, msgAndArgs ...inter
 //  a.Regexpf(regexp.MustCompile("start", "error message %s", "formatted"), "it's starting")
 //  a.Regexpf("start...$", "it's not starting", "error message %s", "formatted")
 func (a *Assertions) Regexpf(rx interface{}, str interface{}, msg string, args ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return Regexpf(a.t, rx, str, msg, args...)
 }

@ -636,6 +882,9 @@ func (a *Assertions) Regexpf(rx interface{}, str interface{}, msg string, args .
 //
 //    a.Subset([1, 2, 3], [1, 2], "But [1, 2, 3] does contain [1, 2]")
 func (a *Assertions) Subset(list interface{}, subset interface{}, msgAndArgs ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return Subset(a.t, list, subset, msgAndArgs...)
 }

@ -644,6 +893,9 @@ func (a *Assertions) Subset(list interface{}, subset interface{}, msgAndArgs ...
 //
 //    a.Subsetf([1, 2, 3], [1, 2], "But [1, 2, 3] does contain [1, 2]", "error message %s", "formatted")
 func (a *Assertions) Subsetf(list interface{}, subset interface{}, msg string, args ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return Subsetf(a.t, list, subset, msg, args...)
 }

@ -651,6 +903,9 @@ func (a *Assertions) Subsetf(list interface{}, subset interface{}, msg string, a
 //
 //    a.True(myBool)
 func (a *Assertions) True(value bool, msgAndArgs ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return True(a.t, value, msgAndArgs...)
 }

@ -658,6 +913,9 @@ func (a *Assertions) True(value bool, msgAndArgs ...interface{}) bool {
 //
 //    a.Truef(myBool, "error message %s", "formatted")
 func (a *Assertions) Truef(value bool, msg string, args ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return Truef(a.t, value, msg, args...)
 }

@ -665,6 +923,9 @@ func (a *Assertions) Truef(value bool, msg string, args ...interface{}) bool {
 //
 //   a.WithinDuration(time.Now(), time.Now(), 10*time.Second)
 func (a *Assertions) WithinDuration(expected time.Time, actual time.Time, delta time.Duration, msgAndArgs ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return WithinDuration(a.t, expected, actual, delta, msgAndArgs...)
 }

@ -672,15 +933,24 @@ func (a *Assertions) WithinDuration(expected time.Time, actual time.Time, delta
 //
 //   a.WithinDurationf(time.Now(), time.Now(), 10*time.Second, "error message %s", "formatted")
 func (a *Assertions) WithinDurationf(expected time.Time, actual time.Time, delta time.Duration, msg string, args ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return WithinDurationf(a.t, expected, actual, delta, msg, args...)
 }

 // Zero asserts that i is the zero value for its type.
 func (a *Assertions) Zero(i interface{}, msgAndArgs ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return Zero(a.t, i, msgAndArgs...)
 }

 // Zerof asserts that i is the zero value for its type.
 func (a *Assertions) Zerof(i interface{}, msg string, args ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
 	return Zerof(a.t, i, msg, args...)
 }
--- a/vendor/github.com/stretchr/testify/assert/assertion_forward.go.tmpl
+++ b/vendor/github.com/stretchr/testify/assert/assertion_forward.go.tmpl
@ -1,4 +1,5 @@
 {{.CommentWithoutT "a"}}
 func (a *Assertions) {{.DocInfo.Name}}({{.Params}}) bool {
+	if h, ok := a.t.(tHelper); ok { h.Helper() }
 	return {{.DocInfo.Name}}(a.t, {{.ForwardedParams}})
 }
--- a/vendor/github.com/stretchr/testify/assert/assertions.go
+++ b/vendor/github.com/stretchr/testify/assert/assertions.go
@ -27,6 +27,22 @@ type TestingT interface {
 	Errorf(format string, args ...interface{})
 }

+// ComparisonAssertionFunc is a common function prototype when comparing two values.  Can be useful
+// for table driven tests.
+type ComparisonAssertionFunc func(TestingT, interface{}, interface{}, ...interface{}) bool
+
+// ValueAssertionFunc is a common function prototype when validating a single value.  Can be useful
+// for table driven tests.
+type ValueAssertionFunc func(TestingT, interface{}, ...interface{}) bool
+
+// BoolAssertionFunc is a common function prototype when validating a bool value.  Can be useful
+// for table driven tests.
+type BoolAssertionFunc func(TestingT, bool, ...interface{}) bool
+
+// ValuesAssertionFunc is a common function prototype when validating an error value.  Can be useful
+// for table driven tests.
+type ErrorAssertionFunc func(TestingT, error, ...interface{}) bool
+
 // Comparison a custom function that returns true on success and false on failure
 type Comparison func() (success bool)

@ -38,21 +54,23 @@ type Comparison func() (success bool)
 //
 // This function does no assertion of any kind.
 func ObjectsAreEqual(expected, actual interface{}) bool {
-
 	if expected == nil || actual == nil {
 		return expected == actual
 	}
-	if exp, ok := expected.([]byte); ok {
-		act, ok := actual.([]byte)
-		if !ok {
-			return false
-		} else if exp == nil || act == nil {
-			return exp == nil && act == nil
-		}
-		return bytes.Equal(exp, act)
-	}
-	return reflect.DeepEqual(expected, actual)

+	exp, ok := expected.([]byte)
+	if !ok {
+		return reflect.DeepEqual(expected, actual)
+	}
+
+	act, ok := actual.([]byte)
+	if !ok {
+		return false
+	}
+	if exp == nil || act == nil {
+		return exp == nil && act == nil
+	}
+	return bytes.Equal(exp, act)
 }

 // ObjectsAreEqualValues gets whether two objects are equal, or if their
@ -156,21 +174,6 @@ func isTest(name, prefix string) bool {
 	return !unicode.IsLower(rune)
 }

-// getWhitespaceString returns a string that is long enough to overwrite the default
-// output from the go testing framework.
-func getWhitespaceString() string {
-
-	_, file, line, ok := runtime.Caller(1)
-	if !ok {
-		return ""
-	}
-	parts := strings.Split(file, "/")
-	file = parts[len(parts)-1]
-
-	return strings.Repeat(" ", len(fmt.Sprintf("%s:%d:        ", file, line)))
-
-}
-
 func messageFromMsgAndArgs(msgAndArgs ...interface{}) string {
 	if len(msgAndArgs) == 0 || msgAndArgs == nil {
 		return ""
@ -195,7 +198,7 @@ func indentMessageLines(message string, longestLabelLen int) string {
 		// no need to align first line because it starts at the correct location (after the label)
 		if i != 0 {
 			// append alignLen+1 spaces to align with "{{longestLabel}}:" before adding tab
-			outBuf.WriteString("\n\r\t" + strings.Repeat(" ", longestLabelLen+1) + "\t")
+			outBuf.WriteString("\n\t" + strings.Repeat(" ", longestLabelLen+1) + "\t")
 		}
 		outBuf.WriteString(scanner.Text())
 	}
@ -209,6 +212,9 @@ type failNower interface {

 // FailNow fails test
 func FailNow(t TestingT, failureMessage string, msgAndArgs ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	Fail(t, failureMessage, msgAndArgs...)

 	// We cannot extend TestingT with FailNow() and
@ -227,8 +233,11 @@ func FailNow(t TestingT, failureMessage string, msgAndArgs ...interface{}) bool

 // Fail reports a failure through
 func Fail(t TestingT, failureMessage string, msgAndArgs ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	content := []labeledContent{
-		{"Error Trace", strings.Join(CallerInfo(), "\n\r\t\t\t")},
+		{"Error Trace", strings.Join(CallerInfo(), "\n\t\t\t")},
 		{"Error", failureMessage},
 	}

@ -244,7 +253,7 @@ func Fail(t TestingT, failureMessage string, msgAndArgs ...interface{}) bool {
 		content = append(content, labeledContent{"Messages", message})
 	}

-	t.Errorf("%s", "\r"+getWhitespaceString()+labeledOutput(content...))
+	t.Errorf("\n%s", ""+labeledOutput(content...))

 	return false
 }
@ -256,7 +265,7 @@ type labeledContent struct {

 // labeledOutput returns a string consisting of the provided labeledContent. Each labeled output is appended in the following manner:
 //
-//   \r\t{{label}}:{{align_spaces}}\t{{content}}\n
+//   \t{{label}}:{{align_spaces}}\t{{content}}\n
 //
 // The initial carriage return is required to undo/erase any padding added by testing.T.Errorf. The "\t{{label}}:" is for the label.
 // If a label is shorter than the longest label provided, padding spaces are added to make all the labels match in length. Once this
@ -272,7 +281,7 @@ func labeledOutput(content ...labeledContent) string {
 	}
 	var output string
 	for _, v := range content {
-		output += "\r\t" + v.label + ":" + strings.Repeat(" ", longestLabel-len(v.label)) + "\t" + indentMessageLines(v.content, longestLabel) + "\n"
+		output += "\t" + v.label + ":" + strings.Repeat(" ", longestLabel-len(v.label)) + "\t" + indentMessageLines(v.content, longestLabel) + "\n"
 	}
 	return output
 }
@ -281,6 +290,9 @@ func labeledOutput(content ...labeledContent) string {
 //
 //    assert.Implements(t, (*MyInterface)(nil), new(MyObject))
 func Implements(t TestingT, interfaceObject interface{}, object interface{}, msgAndArgs ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	interfaceType := reflect.TypeOf(interfaceObject).Elem()

 	if object == nil {
@ -295,6 +307,9 @@ func Implements(t TestingT, interfaceObject interface{}, object interface{}, msg

 // IsType asserts that the specified objects are of the same type.
 func IsType(t TestingT, expectedType interface{}, object interface{}, msgAndArgs ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}

 	if !ObjectsAreEqual(reflect.TypeOf(object), reflect.TypeOf(expectedType)) {
 		return Fail(t, fmt.Sprintf("Object expected to be of type %v, but was %v", reflect.TypeOf(expectedType), reflect.TypeOf(object)), msgAndArgs...)
@ -311,6 +326,9 @@ func IsType(t TestingT, expectedType interface{}, object interface{}, msgAndArgs
 // referenced values (as opposed to the memory addresses). Function equality
 // cannot be determined and will always fail.
 func Equal(t TestingT, expected, actual interface{}, msgAndArgs ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	if err := validateEqualArgs(expected, actual); err != nil {
 		return Fail(t, fmt.Sprintf("Invalid operation: %#v == %#v (%s)",
 			expected, actual, err), msgAndArgs...)
@ -349,6 +367,9 @@ func formatUnequalValues(expected, actual interface{}) (e string, a string) {
 //
 //    assert.EqualValues(t, uint32(123), int32(123))
 func EqualValues(t TestingT, expected, actual interface{}, msgAndArgs ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}

 	if !ObjectsAreEqualValues(expected, actual) {
 		diff := diff(expected, actual)
@ -366,12 +387,15 @@ func EqualValues(t TestingT, expected, actual interface{}, msgAndArgs ...interfa
 //
 //    assert.Exactly(t, int32(123), int64(123))
 func Exactly(t TestingT, expected, actual interface{}, msgAndArgs ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}

 	aType := reflect.TypeOf(expected)
 	bType := reflect.TypeOf(actual)

 	if aType != bType {
-		return Fail(t, fmt.Sprintf("Types expected to match exactly\n\r\t%v != %v", aType, bType), msgAndArgs...)
+		return Fail(t, fmt.Sprintf("Types expected to match exactly\n\t%v != %v", aType, bType), msgAndArgs...)
 	}

 	return Equal(t, expected, actual, msgAndArgs...)
@ -382,6 +406,9 @@ func Exactly(t TestingT, expected, actual interface{}, msgAndArgs ...interface{}
 //
 //    assert.NotNil(t, err)
 func NotNil(t TestingT, object interface{}, msgAndArgs ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	if !isNil(object) {
 		return true
 	}
@ -407,6 +434,9 @@ func isNil(object interface{}) bool {
 //
 //    assert.Nil(t, err)
 func Nil(t TestingT, object interface{}, msgAndArgs ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	if isNil(object) {
 		return true
 	}
@ -446,6 +476,9 @@ func isEmpty(object interface{}) bool {
 //
 //  assert.Empty(t, obj)
 func Empty(t TestingT, object interface{}, msgAndArgs ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}

 	pass := isEmpty(object)
 	if !pass {
@ -463,6 +496,9 @@ func Empty(t TestingT, object interface{}, msgAndArgs ...interface{}) bool {
 //    assert.Equal(t, "two", obj[1])
 //  }
 func NotEmpty(t TestingT, object interface{}, msgAndArgs ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}

 	pass := !isEmpty(object)
 	if !pass {
@ -490,6 +526,9 @@ func getLen(x interface{}) (ok bool, length int) {
 //
 //    assert.Len(t, mySlice, 3)
 func Len(t TestingT, object interface{}, length int, msgAndArgs ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	ok, l := getLen(object)
 	if !ok {
 		return Fail(t, fmt.Sprintf("\"%s\" could not be applied builtin len()", object), msgAndArgs...)
@ -505,6 +544,14 @@ func Len(t TestingT, object interface{}, length int, msgAndArgs ...interface{})
 //
 //    assert.True(t, myBool)
 func True(t TestingT, value bool, msgAndArgs ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
+	if h, ok := t.(interface {
+		Helper()
+	}); ok {
+		h.Helper()
+	}

 	if value != true {
 		return Fail(t, "Should be true", msgAndArgs...)
@ -518,6 +565,9 @@ func True(t TestingT, value bool, msgAndArgs ...interface{}) bool {
 //
 //    assert.False(t, myBool)
 func False(t TestingT, value bool, msgAndArgs ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}

 	if value != false {
 		return Fail(t, "Should be false", msgAndArgs...)
@ -534,6 +584,9 @@ func False(t TestingT, value bool, msgAndArgs ...interface{}) bool {
 // Pointer variable equality is determined based on the equality of the
 // referenced values (as opposed to the memory addresses).
 func NotEqual(t TestingT, expected, actual interface{}, msgAndArgs ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	if err := validateEqualArgs(expected, actual); err != nil {
 		return Fail(t, fmt.Sprintf("Invalid operation: %#v != %#v (%s)",
 			expected, actual, err), msgAndArgs...)
@ -592,6 +645,9 @@ func includeElement(list interface{}, element interface{}) (ok, found bool) {
 //    assert.Contains(t, ["Hello", "World"], "World")
 //    assert.Contains(t, {"Hello": "World"}, "Hello")
 func Contains(t TestingT, s, contains interface{}, msgAndArgs ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}

 	ok, found := includeElement(s, contains)
 	if !ok {
@ -612,6 +668,9 @@ func Contains(t TestingT, s, contains interface{}, msgAndArgs ...interface{}) bo
 //    assert.NotContains(t, ["Hello", "World"], "Earth")
 //    assert.NotContains(t, {"Hello": "World"}, "Earth")
 func NotContains(t TestingT, s, contains interface{}, msgAndArgs ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}

 	ok, found := includeElement(s, contains)
 	if !ok {
@ -630,6 +689,9 @@ func NotContains(t TestingT, s, contains interface{}, msgAndArgs ...interface{})
 //
 //    assert.Subset(t, [1, 2, 3], [1, 2], "But [1, 2, 3] does contain [1, 2]")
 func Subset(t TestingT, list, subset interface{}, msgAndArgs ...interface{}) (ok bool) {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	if subset == nil {
 		return true // we consider nil to be equal to the nil set
 	}
@ -671,6 +733,9 @@ func Subset(t TestingT, list, subset interface{}, msgAndArgs ...interface{}) (ok
 //
 //    assert.NotSubset(t, [1, 3, 4], [1, 2], "But [1, 3, 4] does not contain [1, 2]")
 func NotSubset(t TestingT, list, subset interface{}, msgAndArgs ...interface{}) (ok bool) {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	if subset == nil {
 		return Fail(t, fmt.Sprintf("nil is the empty set which is a subset of every set"), msgAndArgs...)
 	}
@ -711,8 +776,11 @@ func NotSubset(t TestingT, list, subset interface{}, msgAndArgs ...interface{})
 // listB(array, slice...) ignoring the order of the elements. If there are duplicate elements,
 // the number of appearances of each of them in both lists should match.
 //
-// assert.ElementsMatch(t, [1, 3, 2, 3], [1, 3, 3, 2]))
+// assert.ElementsMatch(t, [1, 3, 2, 3], [1, 3, 3, 2])
 func ElementsMatch(t TestingT, listA, listB interface{}, msgAndArgs ...interface{}) (ok bool) {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	if isEmpty(listA) && isEmpty(listB) {
 		return true
 	}
@ -763,6 +831,9 @@ func ElementsMatch(t TestingT, listA, listB interface{}, msgAndArgs ...interface

 // Condition uses a Comparison to assert a complex condition.
 func Condition(t TestingT, comp Comparison, msgAndArgs ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	result := comp()
 	if !result {
 		Fail(t, "Condition failed!", msgAndArgs...)
@ -800,9 +871,12 @@ func didPanic(f PanicTestFunc) (bool, interface{}) {
 //
 //   assert.Panics(t, func(){ GoCrazy() })
 func Panics(t TestingT, f PanicTestFunc, msgAndArgs ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}

 	if funcDidPanic, panicValue := didPanic(f); !funcDidPanic {
-		return Fail(t, fmt.Sprintf("func %#v should panic\n\r\tPanic value:\t%v", f, panicValue), msgAndArgs...)
+		return Fail(t, fmt.Sprintf("func %#v should panic\n\tPanic value:\t%#v", f, panicValue), msgAndArgs...)
 	}

 	return true
@ -813,13 +887,16 @@ func Panics(t TestingT, f PanicTestFunc, msgAndArgs ...interface{}) bool {
 //
 //   assert.PanicsWithValue(t, "crazy error", func(){ GoCrazy() })
 func PanicsWithValue(t TestingT, expected interface{}, f PanicTestFunc, msgAndArgs ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}

 	funcDidPanic, panicValue := didPanic(f)
 	if !funcDidPanic {
-		return Fail(t, fmt.Sprintf("func %#v should panic\n\r\tPanic value:\t%v", f, panicValue), msgAndArgs...)
+		return Fail(t, fmt.Sprintf("func %#v should panic\n\tPanic value:\t%#v", f, panicValue), msgAndArgs...)
 	}
 	if panicValue != expected {
-		return Fail(t, fmt.Sprintf("func %#v should panic with value:\t%v\n\r\tPanic value:\t%v", f, expected, panicValue), msgAndArgs...)
+		return Fail(t, fmt.Sprintf("func %#v should panic with value:\t%#v\n\tPanic value:\t%#v", f, expected, panicValue), msgAndArgs...)
 	}

 	return true
@ -829,9 +906,12 @@ func PanicsWithValue(t TestingT, expected interface{}, f PanicTestFunc, msgAndAr
 //
 //   assert.NotPanics(t, func(){ RemainCalm() })
 func NotPanics(t TestingT, f PanicTestFunc, msgAndArgs ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}

 	if funcDidPanic, panicValue := didPanic(f); funcDidPanic {
-		return Fail(t, fmt.Sprintf("func %#v should not panic\n\r\tPanic value:\t%v", f, panicValue), msgAndArgs...)
+		return Fail(t, fmt.Sprintf("func %#v should not panic\n\tPanic value:\t%v", f, panicValue), msgAndArgs...)
 	}

 	return true
@ -841,6 +921,9 @@ func NotPanics(t TestingT, f PanicTestFunc, msgAndArgs ...interface{}) bool {
 //
 //   assert.WithinDuration(t, time.Now(), time.Now(), 10*time.Second)
 func WithinDuration(t TestingT, expected, actual time.Time, delta time.Duration, msgAndArgs ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}

 	dt := expected.Sub(actual)
 	if dt < -delta || dt > delta {
@ -890,6 +973,9 @@ func toFloat(x interface{}) (float64, bool) {
 //
 // 	 assert.InDelta(t, math.Pi, (22 / 7.0), 0.01)
 func InDelta(t TestingT, expected, actual interface{}, delta float64, msgAndArgs ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}

 	af, aok := toFloat(expected)
 	bf, bok := toFloat(actual)
@ -916,6 +1002,9 @@ func InDelta(t TestingT, expected, actual interface{}, delta float64, msgAndArgs

 // InDeltaSlice is the same as InDelta, except it compares two slices.
 func InDeltaSlice(t TestingT, expected, actual interface{}, delta float64, msgAndArgs ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	if expected == nil || actual == nil ||
 		reflect.TypeOf(actual).Kind() != reflect.Slice ||
 		reflect.TypeOf(expected).Kind() != reflect.Slice {
@ -937,6 +1026,9 @@ func InDeltaSlice(t TestingT, expected, actual interface{}, delta float64, msgAn

 // InDeltaMapValues is the same as InDelta, but it compares all values between two maps. Both maps must have exactly the same keys.
 func InDeltaMapValues(t TestingT, expected, actual interface{}, delta float64, msgAndArgs ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	if expected == nil || actual == nil ||
 		reflect.TypeOf(actual).Kind() != reflect.Map ||
 		reflect.TypeOf(expected).Kind() != reflect.Map {
@ -947,7 +1039,7 @@ func InDeltaMapValues(t TestingT, expected, actual interface{}, delta float64, m
 	actualMap := reflect.ValueOf(actual)

 	if expectedMap.Len() != actualMap.Len() {
-		return Fail(t, "Arguments must have the same numbe of keys", msgAndArgs...)
+		return Fail(t, "Arguments must have the same number of keys", msgAndArgs...)
 	}

 	for _, k := range expectedMap.MapKeys() {
@ -994,6 +1086,9 @@ func calcRelativeError(expected, actual interface{}) (float64, error) {

 // InEpsilon asserts that expected and actual have a relative error less than epsilon
 func InEpsilon(t TestingT, expected, actual interface{}, epsilon float64, msgAndArgs ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	actualEpsilon, err := calcRelativeError(expected, actual)
 	if err != nil {
 		return Fail(t, err.Error(), msgAndArgs...)
@ -1008,6 +1103,9 @@ func InEpsilon(t TestingT, expected, actual interface{}, epsilon float64, msgAnd

 // InEpsilonSlice is the same as InEpsilon, except it compares each value from two slices.
 func InEpsilonSlice(t TestingT, expected, actual interface{}, epsilon float64, msgAndArgs ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	if expected == nil || actual == nil ||
 		reflect.TypeOf(actual).Kind() != reflect.Slice ||
 		reflect.TypeOf(expected).Kind() != reflect.Slice {
@ -1038,6 +1136,9 @@ func InEpsilonSlice(t TestingT, expected, actual interface{}, epsilon float64, m
 //	   assert.Equal(t, expectedObj, actualObj)
 //   }
 func NoError(t TestingT, err error, msgAndArgs ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	if err != nil {
 		return Fail(t, fmt.Sprintf("Received unexpected error:\n%+v", err), msgAndArgs...)
 	}
@ -1052,6 +1153,9 @@ func NoError(t TestingT, err error, msgAndArgs ...interface{}) bool {
 //	   assert.Equal(t, expectedError, err)
 //   }
 func Error(t TestingT, err error, msgAndArgs ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}

 	if err == nil {
 		return Fail(t, "An error is expected but got nil.", msgAndArgs...)
@ -1066,6 +1170,9 @@ func Error(t TestingT, err error, msgAndArgs ...interface{}) bool {
 //   actualObj, err := SomeFunction()
 //   assert.EqualError(t, err,  expectedErrorString)
 func EqualError(t TestingT, theError error, errString string, msgAndArgs ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	if !Error(t, theError, msgAndArgs...) {
 		return false
 	}
@ -1099,6 +1206,9 @@ func matchRegexp(rx interface{}, str interface{}) bool {
 //  assert.Regexp(t, regexp.MustCompile("start"), "it's starting")
 //  assert.Regexp(t, "start...$", "it's not starting")
 func Regexp(t TestingT, rx interface{}, str interface{}, msgAndArgs ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}

 	match := matchRegexp(rx, str)

@ -1114,6 +1224,9 @@ func Regexp(t TestingT, rx interface{}, str interface{}, msgAndArgs ...interface
 //  assert.NotRegexp(t, regexp.MustCompile("starts"), "it's starting")
 //  assert.NotRegexp(t, "^start", "it's not starting")
 func NotRegexp(t TestingT, rx interface{}, str interface{}, msgAndArgs ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	match := matchRegexp(rx, str)

 	if match {
@ -1126,6 +1239,9 @@ func NotRegexp(t TestingT, rx interface{}, str interface{}, msgAndArgs ...interf

 // Zero asserts that i is the zero value for its type.
 func Zero(t TestingT, i interface{}, msgAndArgs ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	if i != nil && !reflect.DeepEqual(i, reflect.Zero(reflect.TypeOf(i)).Interface()) {
 		return Fail(t, fmt.Sprintf("Should be zero, but was %v", i), msgAndArgs...)
 	}
@ -1134,6 +1250,9 @@ func Zero(t TestingT, i interface{}, msgAndArgs ...interface{}) bool {

 // NotZero asserts that i is not the zero value for its type.
 func NotZero(t TestingT, i interface{}, msgAndArgs ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	if i == nil || reflect.DeepEqual(i, reflect.Zero(reflect.TypeOf(i)).Interface()) {
 		return Fail(t, fmt.Sprintf("Should not be zero, but was %v", i), msgAndArgs...)
 	}
@ -1142,6 +1261,9 @@ func NotZero(t TestingT, i interface{}, msgAndArgs ...interface{}) bool {

 // FileExists checks whether a file exists in the given path. It also fails if the path points to a directory or there is an error when trying to check the file.
 func FileExists(t TestingT, path string, msgAndArgs ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	info, err := os.Lstat(path)
 	if err != nil {
 		if os.IsNotExist(err) {
@ -1157,6 +1279,9 @@ func FileExists(t TestingT, path string, msgAndArgs ...interface{}) bool {

 // DirExists checks whether a directory exists in the given path. It also fails if the path is a file rather a directory or there is an error checking whether it exists.
 func DirExists(t TestingT, path string, msgAndArgs ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	info, err := os.Lstat(path)
 	if err != nil {
 		if os.IsNotExist(err) {
@ -1174,6 +1299,9 @@ func DirExists(t TestingT, path string, msgAndArgs ...interface{}) bool {
 //
 //  assert.JSONEq(t, `{"hello": "world", "foo": "bar"}`, `{"foo": "bar", "hello": "world"}`)
 func JSONEq(t TestingT, expected string, actual string, msgAndArgs ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	var expectedJSONAsInterface, actualJSONAsInterface interface{}

 	if err := json.Unmarshal([]byte(expected), &expectedJSONAsInterface); err != nil {
@ -1212,12 +1340,18 @@ func diff(expected interface{}, actual interface{}) string {
 		return ""
 	}

-	if ek != reflect.Struct && ek != reflect.Map && ek != reflect.Slice && ek != reflect.Array {
+	if ek != reflect.Struct && ek != reflect.Map && ek != reflect.Slice && ek != reflect.Array && ek != reflect.String {
 		return ""
 	}

-	e := spewConfig.Sdump(expected)
-	a := spewConfig.Sdump(actual)
+	var e, a string
+	if ek != reflect.String {
+		e = spewConfig.Sdump(expected)
+		a = spewConfig.Sdump(actual)
+	} else {
+		e = expected.(string)
+		a = actual.(string)
+	}

 	diff, _ := difflib.GetUnifiedDiffString(difflib.UnifiedDiff{
 		A:        difflib.SplitLines(e),
@ -1254,3 +1388,7 @@ var spewConfig = spew.ConfigState{
 	DisableCapacities:       true,
 	SortKeys:                true,
 }
+
+type tHelper interface {
+	Helper()
+}
--- a/vendor/github.com/stretchr/testify/assert/http_assertions.go
+++ b/vendor/github.com/stretchr/testify/assert/http_assertions.go
@ -12,10 +12,11 @@ import (
 // an error if building a new request fails.
 func httpCode(handler http.HandlerFunc, method, url string, values url.Values) (int, error) {
 	w := httptest.NewRecorder()
-	req, err := http.NewRequest(method, url+"?"+values.Encode(), nil)
+	req, err := http.NewRequest(method, url, nil)
 	if err != nil {
 		return -1, err
 	}
+	req.URL.RawQuery = values.Encode()
 	handler(w, req)
 	return w.Code, nil
 }
@ -26,6 +27,9 @@ func httpCode(handler http.HandlerFunc, method, url string, values url.Values) (
 //
 // Returns whether the assertion was successful (true) or not (false).
 func HTTPSuccess(t TestingT, handler http.HandlerFunc, method, url string, values url.Values, msgAndArgs ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	code, err := httpCode(handler, method, url, values)
 	if err != nil {
 		Fail(t, fmt.Sprintf("Failed to build test request, got error: %s", err))
@ -46,6 +50,9 @@ func HTTPSuccess(t TestingT, handler http.HandlerFunc, method, url string, value
 //
 // Returns whether the assertion was successful (true) or not (false).
 func HTTPRedirect(t TestingT, handler http.HandlerFunc, method, url string, values url.Values, msgAndArgs ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	code, err := httpCode(handler, method, url, values)
 	if err != nil {
 		Fail(t, fmt.Sprintf("Failed to build test request, got error: %s", err))
@ -66,6 +73,9 @@ func HTTPRedirect(t TestingT, handler http.HandlerFunc, method, url string, valu
 //
 // Returns whether the assertion was successful (true) or not (false).
 func HTTPError(t TestingT, handler http.HandlerFunc, method, url string, values url.Values, msgAndArgs ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	code, err := httpCode(handler, method, url, values)
 	if err != nil {
 		Fail(t, fmt.Sprintf("Failed to build test request, got error: %s", err))
@ -95,10 +105,13 @@ func HTTPBody(handler http.HandlerFunc, method, url string, values url.Values) s
 // HTTPBodyContains asserts that a specified handler returns a
 // body that contains a string.
 //
-//  assert.HTTPBodyContains(t, myHandler, "www.google.com", nil, "I'm Feeling Lucky")
+//  assert.HTTPBodyContains(t, myHandler, "GET", "www.google.com", nil, "I'm Feeling Lucky")
 //
 // Returns whether the assertion was successful (true) or not (false).
 func HTTPBodyContains(t TestingT, handler http.HandlerFunc, method, url string, values url.Values, str interface{}, msgAndArgs ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	body := HTTPBody(handler, method, url, values)

 	contains := strings.Contains(body, fmt.Sprint(str))
@ -112,10 +125,13 @@ func HTTPBodyContains(t TestingT, handler http.HandlerFunc, method, url string,
 // HTTPBodyNotContains asserts that a specified handler returns a
 // body that does not contain a string.
 //
-//  assert.HTTPBodyNotContains(t, myHandler, "www.google.com", nil, "I'm Feeling Lucky")
+//  assert.HTTPBodyNotContains(t, myHandler, "GET", "www.google.com", nil, "I'm Feeling Lucky")
 //
 // Returns whether the assertion was successful (true) or not (false).
 func HTTPBodyNotContains(t TestingT, handler http.HandlerFunc, method, url string, values url.Values, str interface{}, msgAndArgs ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
 	body := HTTPBody(handler, method, url, values)

 	contains := strings.Contains(body, fmt.Sprint(str))
--- a/vendor/golang.org/x/sys/unix/.gitignore
+++ b/vendor/golang.org/x/sys/unix/.gitignore
@ -1 +1,2 @@
 _obj/
+unix.test
--- a/vendor/golang.org/x/sys/unix/affinity_linux.go
+++ b/vendor/golang.org/x/sys/unix/affinity_linux.go
@ -0,0 +1,124 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// CPU affinity functions
+
+package unix
+
+import (
+	"unsafe"
+)
+
+const cpuSetSize = _CPU_SETSIZE / _NCPUBITS
+
+// CPUSet represents a CPU affinity mask.
+type CPUSet [cpuSetSize]cpuMask
+
+func schedAffinity(trap uintptr, pid int, set *CPUSet) error {
+	_, _, e := RawSyscall(trap, uintptr(pid), uintptr(unsafe.Sizeof(*set)), uintptr(unsafe.Pointer(set)))
+	if e != 0 {
+		return errnoErr(e)
+	}
+	return nil
+}
+
+// SchedGetaffinity gets the CPU affinity mask of the thread specified by pid.
+// If pid is 0 the calling thread is used.
+func SchedGetaffinity(pid int, set *CPUSet) error {
+	return schedAffinity(SYS_SCHED_GETAFFINITY, pid, set)
+}
+
+// SchedSetaffinity sets the CPU affinity mask of the thread specified by pid.
+// If pid is 0 the calling thread is used.
+func SchedSetaffinity(pid int, set *CPUSet) error {
+	return schedAffinity(SYS_SCHED_SETAFFINITY, pid, set)
+}
+
+// Zero clears the set s, so that it contains no CPUs.
+func (s *CPUSet) Zero() {
+	for i := range s {
+		s[i] = 0
+	}
+}
+
+func cpuBitsIndex(cpu int) int {
+	return cpu / _NCPUBITS
+}
+
+func cpuBitsMask(cpu int) cpuMask {
+	return cpuMask(1 << (uint(cpu) % _NCPUBITS))
+}
+
+// Set adds cpu to the set s.
+func (s *CPUSet) Set(cpu int) {
+	i := cpuBitsIndex(cpu)
+	if i < len(s) {
+		s[i] |= cpuBitsMask(cpu)
+	}
+}
+
+// Clear removes cpu from the set s.
+func (s *CPUSet) Clear(cpu int) {
+	i := cpuBitsIndex(cpu)
+	if i < len(s) {
+		s[i] &^= cpuBitsMask(cpu)
+	}
+}
+
+// IsSet reports whether cpu is in the set s.
+func (s *CPUSet) IsSet(cpu int) bool {
+	i := cpuBitsIndex(cpu)
+	if i < len(s) {
+		return s[i]&cpuBitsMask(cpu) != 0
+	}
+	return false
+}
+
+// Count returns the number of CPUs in the set s.
+func (s *CPUSet) Count() int {
+	c := 0
+	for _, b := range s {
+		c += onesCount64(uint64(b))
+	}
+	return c
+}
+
+// onesCount64 is a copy of Go 1.9's math/bits.OnesCount64.
+// Once this package can require Go 1.9, we can delete this
+// and update the caller to use bits.OnesCount64.
+func onesCount64(x uint64) int {
+	const m0 = 0x5555555555555555 // 01010101 ...
+	const m1 = 0x3333333333333333 // 00110011 ...
+	const m2 = 0x0f0f0f0f0f0f0f0f // 00001111 ...
+	const m3 = 0x00ff00ff00ff00ff // etc.
+	const m4 = 0x0000ffff0000ffff
+
+	// Implementation: Parallel summing of adjacent bits.
+	// See "Hacker's Delight", Chap. 5: Counting Bits.
+	// The following pattern shows the general approach:
+	//
+	//   x = x>>1&(m0&m) + x&(m0&m)
+	//   x = x>>2&(m1&m) + x&(m1&m)
+	//   x = x>>4&(m2&m) + x&(m2&m)
+	//   x = x>>8&(m3&m) + x&(m3&m)
+	//   x = x>>16&(m4&m) + x&(m4&m)
+	//   x = x>>32&(m5&m) + x&(m5&m)
+	//   return int(x)
+	//
+	// Masking (& operations) can be left away when there's no
+	// danger that a field's sum will carry over into the next
+	// field: Since the result cannot be > 64, 8 bits is enough
+	// and we can ignore the masks for the shifts by 8 and up.
+	// Per "Hacker's Delight", the first line can be simplified
+	// more, but it saves at best one instruction, so we leave
+	// it alone for clarity.
+	const m = 1<<64 - 1
+	x = x>>1&(m0&m) + x&(m0&m)
+	x = x>>2&(m1&m) + x&(m1&m)
+	x = (x>>4 + x) & (m2 & m)
+	x += x >> 8
+	x += x >> 16
+	x += x >> 32
+	return int(x) & (1<<7 - 1)
+}
--- a/vendor/golang.org/x/sys/unix/aliases.go
+++ b/vendor/golang.org/x/sys/unix/aliases.go
@ -0,0 +1,14 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
+// +build go1.9
+
+package unix
+
+import "syscall"
+
+type Signal = syscall.Signal
+type Errno = syscall.Errno
+type SysProcAttr = syscall.SysProcAttr
--- a/vendor/golang.org/x/sys/unix/asm_dragonfly_amd64.s
+++ b/vendor/golang.org/x/sys/unix/asm_dragonfly_amd64.s
@ -13,17 +13,17 @@
 // Just jump to package syscall's implementation for all these functions.
 // The runtime may know about them.

-TEXT	·Syscall(SB),NOSPLIT,$0-64
+TEXT	·Syscall(SB),NOSPLIT,$0-56
 	JMP	syscall·Syscall(SB)

-TEXT	·Syscall6(SB),NOSPLIT,$0-88
+TEXT	·Syscall6(SB),NOSPLIT,$0-80
 	JMP	syscall·Syscall6(SB)

-TEXT	·Syscall9(SB),NOSPLIT,$0-112
+TEXT	·Syscall9(SB),NOSPLIT,$0-104
 	JMP	syscall·Syscall9(SB)

-TEXT ·RawSyscall(SB),NOSPLIT,$0-64
+TEXT ·RawSyscall(SB),NOSPLIT,$0-56
 	JMP	syscall·RawSyscall(SB)

-TEXT	·RawSyscall6(SB),NOSPLIT,$0-88
+TEXT	·RawSyscall6(SB),NOSPLIT,$0-80
 	JMP	syscall·RawSyscall6(SB)
--- a/vendor/golang.org/x/sys/unix/asm_linux_386.s
+++ b/vendor/golang.org/x/sys/unix/asm_linux_386.s
@ -10,21 +10,51 @@
 // System calls for 386, Linux
 //

+// See ../runtime/sys_linux_386.s for the reason why we always use int 0x80
+// instead of the glibc-specific "CALL 0x10(GS)".
+#define INVOKE_SYSCALL	INT	$0x80
+
 // Just jump to package syscall's implementation for all these functions.
 // The runtime may know about them.

-TEXT	·Syscall(SB),NOSPLIT,$0-28
+TEXT ·Syscall(SB),NOSPLIT,$0-28
 	JMP	syscall·Syscall(SB)

-TEXT	·Syscall6(SB),NOSPLIT,$0-40
+TEXT ·Syscall6(SB),NOSPLIT,$0-40
 	JMP	syscall·Syscall6(SB)

+TEXT ·SyscallNoError(SB),NOSPLIT,$0-24
+	CALL	runtime·entersyscall(SB)
+	MOVL	trap+0(FP), AX  // syscall entry
+	MOVL	a1+4(FP), BX
+	MOVL	a2+8(FP), CX
+	MOVL	a3+12(FP), DX
+	MOVL	$0, SI
+	MOVL	$0, DI
+	INVOKE_SYSCALL
+	MOVL	AX, r1+16(FP)
+	MOVL	DX, r2+20(FP)
+	CALL	runtime·exitsyscall(SB)
+	RET
+
 TEXT ·RawSyscall(SB),NOSPLIT,$0-28
 	JMP	syscall·RawSyscall(SB)

-TEXT	·RawSyscall6(SB),NOSPLIT,$0-40
+TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
 	JMP	syscall·RawSyscall6(SB)

+TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-24
+	MOVL	trap+0(FP), AX  // syscall entry
+	MOVL	a1+4(FP), BX
+	MOVL	a2+8(FP), CX
+	MOVL	a3+12(FP), DX
+	MOVL	$0, SI
+	MOVL	$0, DI
+	INVOKE_SYSCALL
+	MOVL	AX, r1+16(FP)
+	MOVL	DX, r2+20(FP)
+	RET
+
 TEXT ·socketcall(SB),NOSPLIT,$0-36
 	JMP	syscall·socketcall(SB)

--- a/vendor/golang.org/x/sys/unix/asm_linux_amd64.s
+++ b/vendor/golang.org/x/sys/unix/asm_linux_amd64.s
@ -13,17 +13,45 @@
 // Just jump to package syscall's implementation for all these functions.
 // The runtime may know about them.

-TEXT	·Syscall(SB),NOSPLIT,$0-56
+TEXT ·Syscall(SB),NOSPLIT,$0-56
 	JMP	syscall·Syscall(SB)

 TEXT ·Syscall6(SB),NOSPLIT,$0-80
 	JMP	syscall·Syscall6(SB)

+TEXT ·SyscallNoError(SB),NOSPLIT,$0-48
+	CALL	runtime·entersyscall(SB)
+	MOVQ	a1+8(FP), DI
+	MOVQ	a2+16(FP), SI
+	MOVQ	a3+24(FP), DX
+	MOVQ	$0, R10
+	MOVQ	$0, R8
+	MOVQ	$0, R9
+	MOVQ	trap+0(FP), AX	// syscall entry
+	SYSCALL
+	MOVQ	AX, r1+32(FP)
+	MOVQ	DX, r2+40(FP)
+	CALL	runtime·exitsyscall(SB)
+	RET
+
 TEXT ·RawSyscall(SB),NOSPLIT,$0-56
 	JMP	syscall·RawSyscall(SB)

 TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
 	JMP	syscall·RawSyscall6(SB)

+TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-48
+	MOVQ	a1+8(FP), DI
+	MOVQ	a2+16(FP), SI
+	MOVQ	a3+24(FP), DX
+	MOVQ	$0, R10
+	MOVQ	$0, R8
+	MOVQ	$0, R9
+	MOVQ	trap+0(FP), AX	// syscall entry
+	SYSCALL
+	MOVQ	AX, r1+32(FP)
+	MOVQ	DX, r2+40(FP)
+	RET
+
 TEXT ·gettimeofday(SB),NOSPLIT,$0-16
 	JMP	syscall·gettimeofday(SB)
--- a/vendor/golang.org/x/sys/unix/asm_linux_arm.s
+++ b/vendor/golang.org/x/sys/unix/asm_linux_arm.s
@ -13,17 +13,44 @@
 // Just jump to package syscall's implementation for all these functions.
 // The runtime may know about them.

-TEXT	·Syscall(SB),NOSPLIT,$0-28
+TEXT ·Syscall(SB),NOSPLIT,$0-28
 	B	syscall·Syscall(SB)

-TEXT	·Syscall6(SB),NOSPLIT,$0-40
+TEXT ·Syscall6(SB),NOSPLIT,$0-40
 	B	syscall·Syscall6(SB)

+TEXT ·SyscallNoError(SB),NOSPLIT,$0-24
+	BL	runtime·entersyscall(SB)
+	MOVW	trap+0(FP), R7
+	MOVW	a1+4(FP), R0
+	MOVW	a2+8(FP), R1
+	MOVW	a3+12(FP), R2
+	MOVW	$0, R3
+	MOVW	$0, R4
+	MOVW	$0, R5
+	SWI	$0
+	MOVW	R0, r1+16(FP)
+	MOVW	$0, R0
+	MOVW	R0, r2+20(FP)
+	BL	runtime·exitsyscall(SB)
+	RET
+
 TEXT ·RawSyscall(SB),NOSPLIT,$0-28
 	B	syscall·RawSyscall(SB)

-TEXT	·RawSyscall6(SB),NOSPLIT,$0-40
+TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
 	B	syscall·RawSyscall6(SB)

-TEXT ·seek(SB),NOSPLIT,$0-32
+TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-24
+	MOVW	trap+0(FP), R7	// syscall entry
+	MOVW	a1+4(FP), R0
+	MOVW	a2+8(FP), R1
+	MOVW	a3+12(FP), R2
+	SWI	$0
+	MOVW	R0, r1+16(FP)
+	MOVW	$0, R0
+	MOVW	R0, r2+20(FP)
+	RET
+
+TEXT ·seek(SB),NOSPLIT,$0-28
 	B	syscall·seek(SB)
--- a/vendor/golang.org/x/sys/unix/asm_linux_arm64.s
+++ b/vendor/golang.org/x/sys/unix/asm_linux_arm64.s
@ -11,14 +11,42 @@
 // Just jump to package syscall's implementation for all these functions.
 // The runtime may know about them.

-TEXT	·Syscall(SB),NOSPLIT,$0-56
+TEXT ·Syscall(SB),NOSPLIT,$0-56
 	B	syscall·Syscall(SB)

 TEXT ·Syscall6(SB),NOSPLIT,$0-80
 	B	syscall·Syscall6(SB)

+TEXT ·SyscallNoError(SB),NOSPLIT,$0-48
+	BL	runtime·entersyscall(SB)
+	MOVD	a1+8(FP), R0
+	MOVD	a2+16(FP), R1
+	MOVD	a3+24(FP), R2
+	MOVD	$0, R3
+	MOVD	$0, R4
+	MOVD	$0, R5
+	MOVD	trap+0(FP), R8	// syscall entry
+	SVC
+	MOVD	R0, r1+32(FP)	// r1
+	MOVD	R1, r2+40(FP)	// r2
+	BL	runtime·exitsyscall(SB)
+	RET
+
 TEXT ·RawSyscall(SB),NOSPLIT,$0-56
 	B	syscall·RawSyscall(SB)

 TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
 	B	syscall·RawSyscall6(SB)
+
+TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-48
+	MOVD	a1+8(FP), R0
+	MOVD	a2+16(FP), R1
+	MOVD	a3+24(FP), R2
+	MOVD	$0, R3
+	MOVD	$0, R4
+	MOVD	$0, R5
+	MOVD	trap+0(FP), R8	// syscall entry
+	SVC
+	MOVD	R0, r1+32(FP)
+	MOVD	R1, r2+40(FP)
+	RET
--- a/vendor/golang.org/x/sys/unix/asm_linux_mips64x.s
+++ b/vendor/golang.org/x/sys/unix/asm_linux_mips64x.s
@ -15,14 +15,42 @@
 // Just jump to package syscall's implementation for all these functions.
 // The runtime may know about them.

-TEXT	·Syscall(SB),NOSPLIT,$0-56
+TEXT ·Syscall(SB),NOSPLIT,$0-56
 	JMP	syscall·Syscall(SB)

-TEXT	·Syscall6(SB),NOSPLIT,$0-80
+TEXT ·Syscall6(SB),NOSPLIT,$0-80
 	JMP	syscall·Syscall6(SB)

-TEXT	·RawSyscall(SB),NOSPLIT,$0-56
+TEXT ·SyscallNoError(SB),NOSPLIT,$0-48
+	JAL	runtime·entersyscall(SB)
+	MOVV	a1+8(FP), R4
+	MOVV	a2+16(FP), R5
+	MOVV	a3+24(FP), R6
+	MOVV	R0, R7
+	MOVV	R0, R8
+	MOVV	R0, R9
+	MOVV	trap+0(FP), R2	// syscall entry
+	SYSCALL
+	MOVV	R2, r1+32(FP)
+	MOVV	R3, r2+40(FP)
+	JAL	runtime·exitsyscall(SB)
+	RET
+
+TEXT ·RawSyscall(SB),NOSPLIT,$0-56
 	JMP	syscall·RawSyscall(SB)

-TEXT	·RawSyscall6(SB),NOSPLIT,$0-80
+TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
 	JMP	syscall·RawSyscall6(SB)
+
+TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-48
+	MOVV	a1+8(FP), R4
+	MOVV	a2+16(FP), R5
+	MOVV	a3+24(FP), R6
+	MOVV	R0, R7
+	MOVV	R0, R8
+	MOVV	R0, R9
+	MOVV	trap+0(FP), R2	// syscall entry
+	SYSCALL
+	MOVV	R2, r1+32(FP)
+	MOVV	R3, r2+40(FP)
+	RET
--- a/vendor/golang.org/x/sys/unix/asm_linux_mipsx.s
+++ b/vendor/golang.org/x/sys/unix/asm_linux_mipsx.s
@ -15,17 +15,40 @@
 // Just jump to package syscall's implementation for all these functions.
 // The runtime may know about them.

-TEXT	·Syscall(SB),NOSPLIT,$0-28
+TEXT ·Syscall(SB),NOSPLIT,$0-28
 	JMP syscall·Syscall(SB)

-TEXT	·Syscall6(SB),NOSPLIT,$0-40
+TEXT ·Syscall6(SB),NOSPLIT,$0-40
 	JMP syscall·Syscall6(SB)

-TEXT	·Syscall9(SB),NOSPLIT,$0-52
+TEXT ·Syscall9(SB),NOSPLIT,$0-52
 	JMP syscall·Syscall9(SB)

-TEXT	·RawSyscall(SB),NOSPLIT,$0-28
+TEXT ·SyscallNoError(SB),NOSPLIT,$0-24
+	JAL	runtime·entersyscall(SB)
+	MOVW	a1+4(FP), R4
+	MOVW	a2+8(FP), R5
+	MOVW	a3+12(FP), R6
+	MOVW	R0, R7
+	MOVW	trap+0(FP), R2	// syscall entry
+	SYSCALL
+	MOVW	R2, r1+16(FP)	// r1
+	MOVW	R3, r2+20(FP)	// r2
+	JAL	runtime·exitsyscall(SB)
+	RET
+
+TEXT ·RawSyscall(SB),NOSPLIT,$0-28
 	JMP syscall·RawSyscall(SB)

-TEXT	·RawSyscall6(SB),NOSPLIT,$0-40
+TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
 	JMP syscall·RawSyscall6(SB)
+
+TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-24
+	MOVW	a1+4(FP), R4
+	MOVW	a2+8(FP), R5
+	MOVW	a3+12(FP), R6
+	MOVW	trap+0(FP), R2	// syscall entry
+	SYSCALL
+	MOVW	R2, r1+16(FP)
+	MOVW	R3, r2+20(FP)
+	RET
--- a/vendor/golang.org/x/sys/unix/asm_linux_ppc64x.s
+++ b/vendor/golang.org/x/sys/unix/asm_linux_ppc64x.s
@ -15,14 +15,42 @@
 // Just jump to package syscall's implementation for all these functions.
 // The runtime may know about them.

-TEXT	·Syscall(SB),NOSPLIT,$0-56
+TEXT ·Syscall(SB),NOSPLIT,$0-56
 	BR	syscall·Syscall(SB)

 TEXT ·Syscall6(SB),NOSPLIT,$0-80
 	BR	syscall·Syscall6(SB)

+TEXT ·SyscallNoError(SB),NOSPLIT,$0-48
+	BL	runtime·entersyscall(SB)
+	MOVD	a1+8(FP), R3
+	MOVD	a2+16(FP), R4
+	MOVD	a3+24(FP), R5
+	MOVD	R0, R6
+	MOVD	R0, R7
+	MOVD	R0, R8
+	MOVD	trap+0(FP), R9	// syscall entry
+	SYSCALL R9
+	MOVD	R3, r1+32(FP)
+	MOVD	R4, r2+40(FP)
+	BL	runtime·exitsyscall(SB)
+	RET
+
 TEXT ·RawSyscall(SB),NOSPLIT,$0-56
 	BR	syscall·RawSyscall(SB)

 TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
 	BR	syscall·RawSyscall6(SB)
+
+TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-48
+	MOVD	a1+8(FP), R3
+	MOVD	a2+16(FP), R4
+	MOVD	a3+24(FP), R5
+	MOVD	R0, R6
+	MOVD	R0, R7
+	MOVD	R0, R8
+	MOVD	trap+0(FP), R9	// syscall entry
+	SYSCALL R9
+	MOVD	R3, r1+32(FP)
+	MOVD	R4, r2+40(FP)
+	RET
--- a/vendor/golang.org/x/sys/unix/asm_linux_s390x.s
+++ b/vendor/golang.org/x/sys/unix/asm_linux_s390x.s
@ -21,8 +21,36 @@ TEXT ·Syscall(SB),NOSPLIT,$0-56
 TEXT ·Syscall6(SB),NOSPLIT,$0-80
 	BR	syscall·Syscall6(SB)

+TEXT ·SyscallNoError(SB),NOSPLIT,$0-48
+	BL	runtime·entersyscall(SB)
+	MOVD	a1+8(FP), R2
+	MOVD	a2+16(FP), R3
+	MOVD	a3+24(FP), R4
+	MOVD	$0, R5
+	MOVD	$0, R6
+	MOVD	$0, R7
+	MOVD	trap+0(FP), R1	// syscall entry
+	SYSCALL
+	MOVD	R2, r1+32(FP)
+	MOVD	R3, r2+40(FP)
+	BL	runtime·exitsyscall(SB)
+	RET
+
 TEXT ·RawSyscall(SB),NOSPLIT,$0-56
 	BR	syscall·RawSyscall(SB)

 TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
 	BR	syscall·RawSyscall6(SB)
+
+TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-48
+	MOVD	a1+8(FP), R2
+	MOVD	a2+16(FP), R3
+	MOVD	a3+24(FP), R4
+	MOVD	$0, R5
+	MOVD	$0, R6
+	MOVD	$0, R7
+	MOVD	trap+0(FP), R1	// syscall entry
+	SYSCALL
+	MOVD	R2, r1+32(FP)
+	MOVD	R3, r2+40(FP)
+	RET
--- a/vendor/golang.org/x/sys/unix/cap_freebsd.go
+++ b/vendor/golang.org/x/sys/unix/cap_freebsd.go
@ -7,7 +7,7 @@
 package unix

 import (
-	errorspkg "errors"
+	"errors"
 	"fmt"
 )

@ -60,26 +60,26 @@ func CapRightsSet(rights *CapRights, setrights []uint64) error {

 	n := caparsize(rights)
 	if n < capArSizeMin || n > capArSizeMax {
-		return errorspkg.New("bad rights size")
+		return errors.New("bad rights size")
 	}

 	for _, right := range setrights {
 		if caprver(right) != CAP_RIGHTS_VERSION_00 {
-			return errorspkg.New("bad right version")
+			return errors.New("bad right version")
 		}
 		i, err := rightToIndex(right)
 		if err != nil {
 			return err
 		}
 		if i >= n {
-			return errorspkg.New("index overflow")
+			return errors.New("index overflow")
 		}
 		if capidxbit(rights.Rights[i]) != capidxbit(right) {
-			return errorspkg.New("index mismatch")
+			return errors.New("index mismatch")
 		}
 		rights.Rights[i] |= right
 		if capidxbit(rights.Rights[i]) != capidxbit(right) {
-			return errorspkg.New("index mismatch (after assign)")
+			return errors.New("index mismatch (after assign)")
 		}
 	}

@ -95,26 +95,26 @@ func CapRightsClear(rights *CapRights, clearrights []uint64) error {

 	n := caparsize(rights)
 	if n < capArSizeMin || n > capArSizeMax {
-		return errorspkg.New("bad rights size")
+		return errors.New("bad rights size")
 	}

 	for _, right := range clearrights {
 		if caprver(right) != CAP_RIGHTS_VERSION_00 {
-			return errorspkg.New("bad right version")
+			return errors.New("bad right version")
 		}
 		i, err := rightToIndex(right)
 		if err != nil {
 			return err
 		}
 		if i >= n {
-			return errorspkg.New("index overflow")
+			return errors.New("index overflow")
 		}
 		if capidxbit(rights.Rights[i]) != capidxbit(right) {
-			return errorspkg.New("index mismatch")
+			return errors.New("index mismatch")
 		}
 		rights.Rights[i] &= ^(right & 0x01FFFFFFFFFFFFFF)
 		if capidxbit(rights.Rights[i]) != capidxbit(right) {
-			return errorspkg.New("index mismatch (after assign)")
+			return errors.New("index mismatch (after assign)")
 		}
 	}

@ -130,22 +130,22 @@ func CapRightsIsSet(rights *CapRights, setrights []uint64) (bool, error) {

 	n := caparsize(rights)
 	if n < capArSizeMin || n > capArSizeMax {
-		return false, errorspkg.New("bad rights size")
+		return false, errors.New("bad rights size")
 	}

 	for _, right := range setrights {
 		if caprver(right) != CAP_RIGHTS_VERSION_00 {
-			return false, errorspkg.New("bad right version")
+			return false, errors.New("bad right version")
 		}
 		i, err := rightToIndex(right)
 		if err != nil {
 			return false, err
 		}
 		if i >= n {
-			return false, errorspkg.New("index overflow")
+			return false, errors.New("index overflow")
 		}
 		if capidxbit(rights.Rights[i]) != capidxbit(right) {
-			return false, errorspkg.New("index mismatch")
+			return false, errors.New("index mismatch")
 		}
 		if (rights.Rights[i] & right) != right {
 			return false, nil
--- a/vendor/golang.org/x/sys/unix/constants.go
+++ b/vendor/golang.org/x/sys/unix/constants.go
@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.

-// +build darwin dragonfly freebsd linux netbsd openbsd solaris
+// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris

 package unix

--- a/vendor/golang.org/x/sys/unix/dev_aix_ppc.go
+++ b/vendor/golang.org/x/sys/unix/dev_aix_ppc.go
@ -0,0 +1,37 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build aix
+// +build ppc
+
+// Functions to access/create device major and minor numbers matching the
+// encoding used by the Linux kernel and glibc.
+//
+// The information below is extracted and adapted from bits/sysmacros.h in the
+// glibc sources:
+//
+// dev_t in glibc is 64-bit, with 32-bit major and minor numbers. glibc's
+// default encoding is MMMM Mmmm mmmM MMmm, where M is a hex digit of the major
+// number and m is a hex digit of the minor number. This is backward compatible
+// with legacy systems where dev_t is 16 bits wide, encoded as MMmm. It is also
+// backward compatible with the Linux kernel, which for some architectures uses
+// 32-bit dev_t, encoded as mmmM MMmm.
+
+package unix
+
+// Major returns the major component of a Linux device number.
+func Major(dev uint64) uint32 {
+	return uint32((dev >> 16) & 0xffff)
+}
+
+// Minor returns the minor component of a Linux device number.
+func Minor(dev uint64) uint32 {
+	return uint32(dev & 0xffff)
+}
+
+// Mkdev returns a Linux device number generated from the given major and minor
+// components.
+func Mkdev(major, minor uint32) uint64 {
+	return uint64(((major) << 16) | (minor))
+}
--- a/vendor/golang.org/x/sys/unix/dev_aix_ppc64.go
+++ b/vendor/golang.org/x/sys/unix/dev_aix_ppc64.go
@ -0,0 +1,39 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build aix
+// +build ppc64
+
+// Functions to access/create device major and minor numbers matching the
+// encoding used by the Linux kernel and glibc.
+//
+// The information below is extracted and adapted from bits/sysmacros.h in the
+// glibc sources:
+//
+// dev_t in glibc is 64-bit, with 32-bit major and minor numbers. glibc's
+// default encoding is MMMM Mmmm mmmM MMmm, where M is a hex digit of the major
+// number and m is a hex digit of the minor number. This is backward compatible
+// with legacy systems where dev_t is 16 bits wide, encoded as MMmm. It is also
+// backward compatible with the Linux kernel, which for some architectures uses
+// 32-bit dev_t, encoded as mmmM MMmm.
+
+package unix
+
+// Major returns the major component of a Linux device number.
+func Major(dev uint64) uint32 {
+	return uint32((dev & 0x3fffffff00000000) >> 32)
+}
+
+// Minor returns the minor component of a Linux device number.
+func Minor(dev uint64) uint32 {
+	return uint32((dev & 0x00000000ffffffff) >> 0)
+}
+
+// Mkdev returns a Linux device number generated from the given major and minor
+// components.
+func Mkdev(major, minor uint32) uint64 {
+	var DEVNO64 uint64
+	DEVNO64 = 0x8000000000000000
+	return ((uint64(major) << 32) | (uint64(minor) & 0x00000000FFFFFFFF) | DEVNO64)
+}
--- a/vendor/golang.org/x/sys/unix/dirent.go
+++ b/vendor/golang.org/x/sys/unix/dirent.go
@ -2,101 +2,16 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.

-// +build darwin dragonfly freebsd linux nacl netbsd openbsd solaris
+// +build aix darwin dragonfly freebsd linux nacl netbsd openbsd solaris

 package unix

-import "unsafe"
-
-// readInt returns the size-bytes unsigned integer in native byte order at offset off.
-func readInt(b []byte, off, size uintptr) (u uint64, ok bool) {
-	if len(b) < int(off+size) {
-		return 0, false
-	}
-	if isBigEndian {
-		return readIntBE(b[off:], size), true
-	}
-	return readIntLE(b[off:], size), true
-}
-
-func readIntBE(b []byte, size uintptr) uint64 {
-	switch size {
-	case 1:
-		return uint64(b[0])
-	case 2:
-		_ = b[1] // bounds check hint to compiler; see golang.org/issue/14808
-		return uint64(b[1]) | uint64(b[0])<<8
-	case 4:
-		_ = b[3] // bounds check hint to compiler; see golang.org/issue/14808
-		return uint64(b[3]) | uint64(b[2])<<8 | uint64(b[1])<<16 | uint64(b[0])<<24
-	case 8:
-		_ = b[7] // bounds check hint to compiler; see golang.org/issue/14808
-		return uint64(b[7]) | uint64(b[6])<<8 | uint64(b[5])<<16 | uint64(b[4])<<24 |
-			uint64(b[3])<<32 | uint64(b[2])<<40 | uint64(b[1])<<48 | uint64(b[0])<<56
-	default:
-		panic("syscall: readInt with unsupported size")
-	}
-}
-
-func readIntLE(b []byte, size uintptr) uint64 {
-	switch size {
-	case 1:
-		return uint64(b[0])
-	case 2:
-		_ = b[1] // bounds check hint to compiler; see golang.org/issue/14808
-		return uint64(b[0]) | uint64(b[1])<<8
-	case 4:
-		_ = b[3] // bounds check hint to compiler; see golang.org/issue/14808
-		return uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24
-	case 8:
-		_ = b[7] // bounds check hint to compiler; see golang.org/issue/14808
-		return uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24 |
-			uint64(b[4])<<32 | uint64(b[5])<<40 | uint64(b[6])<<48 | uint64(b[7])<<56
-	default:
-		panic("syscall: readInt with unsupported size")
-	}
-}
+import "syscall"

 // ParseDirent parses up to max directory entries in buf,
 // appending the names to names. It returns the number of
 // bytes consumed from buf, the number of entries added
 // to names, and the new names slice.
 func ParseDirent(buf []byte, max int, names []string) (consumed int, count int, newnames []string) {
-	origlen := len(buf)
-	count = 0
-	for max != 0 && len(buf) > 0 {
-		reclen, ok := direntReclen(buf)
-		if !ok || reclen > uint64(len(buf)) {
-			return origlen, count, names
-		}
-		rec := buf[:reclen]
-		buf = buf[reclen:]
-		ino, ok := direntIno(rec)
-		if !ok {
-			break
-		}
-		if ino == 0 { // File absent in directory.
-			continue
-		}
-		const namoff = uint64(unsafe.Offsetof(Dirent{}.Name))
-		namlen, ok := direntNamlen(rec)
-		if !ok || namoff+namlen > uint64(len(rec)) {
-			break
-		}
-		name := rec[namoff : namoff+namlen]
-		for i, c := range name {
-			if c == 0 {
-				name = name[:i]
-				break
-			}
-		}
-		// Check for useless names before allocating a string.
-		if string(name) == "." || string(name) == ".." {
-			continue
-		}
-		max--
-		count++
-		names = append(names, string(name))
-	}
-	return origlen - len(buf), count, names
+	return syscall.ParseDirent(buf, max, names)
 }
--- a/vendor/golang.org/x/sys/unix/env_unix.go
+++ b/vendor/golang.org/x/sys/unix/env_unix.go
@ -1,8 +1,8 @@
-// Copyright 2010 The Go Authors.  All rights reserved.
+// Copyright 2010 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.

-// +build darwin dragonfly freebsd linux netbsd openbsd solaris
+// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris

 // Unix environment variables.

@ -25,3 +25,7 @@ func Clearenv() {
 func Environ() []string {
 	return syscall.Environ()
 }
+
+func Unsetenv(key string) error {
+	return syscall.Unsetenv(key)
+}
--- a/vendor/golang.org/x/sys/unix/env_unset.go
+++ b/vendor/golang.org/x/sys/unix/env_unset.go
@ -1,14 +0,0 @@
-// Copyright 2014 The Go Authors.  All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build go1.4
-
-package unix
-
-import "syscall"
-
-func Unsetenv(key string) error {
-	// This was added in Go 1.4.
-	return syscall.Unsetenv(key)
-}
--- a/vendor/golang.org/x/sys/unix/fcntl.go
+++ b/vendor/golang.org/x/sys/unix/fcntl.go
@ -12,6 +12,16 @@ import "unsafe"
 // systems by flock_linux_32bit.go to be SYS_FCNTL64.
 var fcntl64Syscall uintptr = SYS_FCNTL

+// FcntlInt performs a fcntl syscall on fd with the provided command and argument.
+func FcntlInt(fd uintptr, cmd, arg int) (int, error) {
+	valptr, _, errno := Syscall(fcntl64Syscall, fd, uintptr(cmd), uintptr(arg))
+	var err error
+	if errno != 0 {
+		err = errno
+	}
+	return int(valptr), err
+}
+
 // FcntlFlock performs a fcntl syscall for the F_GETLK, F_SETLK or F_SETLKW command.
 func FcntlFlock(fd uintptr, cmd int, lk *Flock_t) error {
 	_, _, errno := Syscall(fcntl64Syscall, fd, uintptr(cmd), uintptr(unsafe.Pointer(lk)))
--- a/vendor/golang.org/x/sys/unix/fcntl_linux_32bit.go
+++ b/vendor/golang.org/x/sys/unix/fcntl_linux_32bit.go
--- a/vendor/golang.org/x/sys/unix/file_unix.go
+++ b/vendor/golang.org/x/sys/unix/file_unix.go
@ -1,27 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package unix
-
-import (
-	"os"
-	"syscall"
-)
-
-// FIXME: unexported function from os
-// syscallMode returns the syscall-specific mode bits from Go's portable mode bits.
-func syscallMode(i os.FileMode) (o uint32) {
-	o |= uint32(i.Perm())
-	if i&os.ModeSetuid != 0 {
-		o |= syscall.S_ISUID
-	}
-	if i&os.ModeSetgid != 0 {
-		o |= syscall.S_ISGID
-	}
-	if i&os.ModeSticky != 0 {
-		o |= syscall.S_ISVTX
-	}
-	// No mapping for Go's ModeTemporary (plan9 only).
-	return
-}
--- a/vendor/golang.org/x/sys/unix/gccgo.go
+++ b/vendor/golang.org/x/sys/unix/gccgo.go
@ -1,19 +1,30 @@
-// Copyright 2015 The Go Authors.  All rights reserved.
+// Copyright 2015 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.

 // +build gccgo
+// +build !aix

 package unix

 import "syscall"

-// We can't use the gc-syntax .s files for gccgo.  On the plus side
+// We can't use the gc-syntax .s files for gccgo. On the plus side
 // much of the functionality can be written directly in Go.

+//extern gccgoRealSyscallNoError
+func realSyscallNoError(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r uintptr)
+
 //extern gccgoRealSyscall
 func realSyscall(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r, errno uintptr)

+func SyscallNoError(trap, a1, a2, a3 uintptr) (r1, r2 uintptr) {
+	syscall.Entersyscall()
+	r := realSyscallNoError(trap, a1, a2, a3, 0, 0, 0, 0, 0, 0)
+	syscall.Exitsyscall()
+	return r, 0
+}
+
 func Syscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err syscall.Errno) {
 	syscall.Entersyscall()
 	r, errno := realSyscall(trap, a1, a2, a3, 0, 0, 0, 0, 0, 0)
@ -35,6 +46,11 @@ func Syscall9(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr,
 	return r, 0, syscall.Errno(errno)
 }

+func RawSyscallNoError(trap, a1, a2, a3 uintptr) (r1, r2 uintptr) {
+	r := realSyscallNoError(trap, a1, a2, a3, 0, 0, 0, 0, 0, 0)
+	return r, 0
+}
+
 func RawSyscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err syscall.Errno) {
 	r, errno := realSyscall(trap, a1, a2, a3, 0, 0, 0, 0, 0, 0)
 	return r, 0, syscall.Errno(errno)
--- a/vendor/golang.org/x/sys/unix/gccgo_c.c
+++ b/vendor/golang.org/x/sys/unix/gccgo_c.c
@ -1,8 +1,9 @@
-// Copyright 2015 The Go Authors.  All rights reserved.
+// Copyright 2015 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.

 // +build gccgo
+// +build !aix

 #include <errno.h>
 #include <stdint.h>
@ -31,11 +32,8 @@ gccgoRealSyscall(uintptr_t trap, uintptr_t a1, uintptr_t a2, uintptr_t a3, uintp
 	return r;
 }

-// Define the use function in C so that it is not inlined.
-
-extern void use(void *) __asm__ (GOSYM_PREFIX GOPKGPATH ".use") __attribute__((noinline));
-
-void
-use(void *p __attribute__ ((unused)))
+uintptr_t
+gccgoRealSyscallNoError(uintptr_t trap, uintptr_t a1, uintptr_t a2, uintptr_t a3, uintptr_t a4, uintptr_t a5, uintptr_t a6, uintptr_t a7, uintptr_t a8, uintptr_t a9)
 {
+	return syscall(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9);
 }
--- a/vendor/golang.org/x/sys/unix/gccgo_linux_amd64.go
+++ b/vendor/golang.org/x/sys/unix/gccgo_linux_amd64.go
@ -1,4 +1,4 @@
-// Copyright 2015 The Go Authors.  All rights reserved.
+// Copyright 2015 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.

--- a/vendor/golang.org/x/sys/unix/ioctl.go
+++ b/vendor/golang.org/x/sys/unix/ioctl.go
@ -0,0 +1,30 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build darwin dragonfly freebsd linux netbsd openbsd solaris
+
+package unix
+
+import "runtime"
+
+// IoctlSetWinsize performs an ioctl on fd with a *Winsize argument.
+//
+// To change fd's window size, the req argument should be TIOCSWINSZ.
+func IoctlSetWinsize(fd int, req uint, value *Winsize) error {
+	// TODO: if we get the chance, remove the req parameter and
+	// hardcode TIOCSWINSZ.
+	err := ioctlSetWinsize(fd, req, value)
+	runtime.KeepAlive(value)
+	return err
+}
+
+// IoctlSetTermios performs an ioctl on fd with a *Termios.
+//
+// The req value will usually be TCSETA or TIOCSETA.
+func IoctlSetTermios(fd int, req uint, value *Termios) error {
+	// TODO: if we get the chance, remove the req parameter.
+	err := ioctlSetTermios(fd, req, value)
+	runtime.KeepAlive(value)
+	return err
+}
--- a/vendor/golang.org/x/sys/unix/mkall.sh
+++ b/vendor/golang.org/x/sys/unix/mkall.sh
@ -59,6 +59,16 @@ _* | *_ | _)
 	echo 'undefined $GOOS_$GOARCH:' "$GOOSARCH" 1>&2
 	exit 1
 	;;
+aix_ppc)
+	mkerrors="$mkerrors -maix32"
+	mksyscall="perl mksyscall_aix.pl -aix"
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	;;
+aix_ppc64)
+	mkerrors="$mkerrors -maix64"
+	mksyscall="perl mksyscall_aix.pl -aix"
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	;;
 darwin_386)
 	mkerrors="$mkerrors -m32"
 	mksyscall="./mksyscall.pl -l32"
@ -80,12 +90,6 @@ darwin_arm64)
 	mksysnum="./mksysnum_darwin.pl $(xcrun --show-sdk-path --sdk iphoneos)/usr/include/sys/syscall.h"
 	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
 	;;
-dragonfly_386)
-	mkerrors="$mkerrors -m32"
-	mksyscall="./mksyscall.pl -l32 -dragonfly"
-	mksysnum="curl -s 'http://gitweb.dragonflybsd.org/dragonfly.git/blob_plain/HEAD:/sys/kern/syscalls.master' | ./mksysnum_dragonfly.pl"
-	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
-	;;
 dragonfly_amd64)
 	mkerrors="$mkerrors -m64"
 	mksyscall="./mksyscall.pl -dragonfly"
@ -142,7 +146,6 @@ openbsd_386)
 	mkerrors="$mkerrors -m32"
 	mksyscall="./mksyscall.pl -l32 -openbsd"
 	mksysctl="./mksysctl_openbsd.pl"
-	zsysctl="zsysctl_openbsd.go"
 	mksysnum="curl -s 'http://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/kern/syscalls.master' | ./mksysnum_openbsd.pl"
 	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
 	;;
@ -150,7 +153,6 @@ openbsd_amd64)
 	mkerrors="$mkerrors -m64"
 	mksyscall="./mksyscall.pl -openbsd"
 	mksysctl="./mksysctl_openbsd.pl"
-	zsysctl="zsysctl_openbsd.go"
 	mksysnum="curl -s 'http://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/kern/syscalls.master' | ./mksysnum_openbsd.pl"
 	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
 	;;
@ -158,7 +160,6 @@ openbsd_arm)
 	mkerrors="$mkerrors"
 	mksyscall="./mksyscall.pl -l32 -openbsd -arm"
 	mksysctl="./mksysctl_openbsd.pl"
-	zsysctl="zsysctl_openbsd.go"
 	mksysnum="curl -s 'http://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/kern/syscalls.master' | ./mksysnum_openbsd.pl"
 	# Let the type of C char be signed for making the bare syscall
 	# API consistent across platforms.
--- a/vendor/golang.org/x/sys/unix/mkerrors.sh
+++ b/vendor/golang.org/x/sys/unix/mkerrors.sh
@ -25,7 +25,11 @@ if [[ "$GOOS" = "linux" ]] && [[ "$GOARCH" != "sparc64" ]]; then
 	fi
 fi

-CC=${CC:-cc}
+if [[ "$GOOS" = "aix" ]]; then
+	CC=${CC:-gcc}
+else
+	CC=${CC:-cc}
+fi

 if [[ "$GOOS" = "solaris" ]]; then
 	# Assumes GNU versions of utilities in PATH.
@ -34,10 +38,26 @@ fi

 uname=$(uname)

+includes_AIX='
+#include <net/if.h>
+#include <net/netopt.h>
+#include <netinet/ip_mroute.h>
+#include <sys/protosw.h>
+#include <sys/stropts.h>
+#include <sys/mman.h>
+#include <sys/poll.h>
+#include <termios.h>
+#include <fcntl.h>
+
+#define AF_LOCAL AF_UNIX
+'
+
 includes_Darwin='
 #define _DARWIN_C_SOURCE
 #define KERNEL
 #define _DARWIN_USE_64_BIT_INODE
+#include <stdint.h>
+#include <sys/attr.h>
 #include <sys/types.h>
 #include <sys/event.h>
 #include <sys/ptrace.h>
@ -46,7 +66,9 @@ includes_Darwin='
 #include <sys/sysctl.h>
 #include <sys/mman.h>
 #include <sys/mount.h>
+#include <sys/utsname.h>
 #include <sys/wait.h>
+#include <sys/xattr.h>
 #include <net/bpf.h>
 #include <net/if.h>
 #include <net/if_types.h>
@ -61,6 +83,7 @@ includes_DragonFly='
 #include <sys/event.h>
 #include <sys/socket.h>
 #include <sys/sockio.h>
+#include <sys/stat.h>
 #include <sys/sysctl.h>
 #include <sys/mman.h>
 #include <sys/wait.h>
@ -82,8 +105,10 @@ includes_FreeBSD='
 #include <sys/event.h>
 #include <sys/socket.h>
 #include <sys/sockio.h>
+#include <sys/stat.h>
 #include <sys/sysctl.h>
 #include <sys/mman.h>
+#include <sys/mount.h>
 #include <sys/wait.h>
 #include <sys/ioctl.h>
 #include <net/bpf.h>
@ -167,7 +192,10 @@ struct ltchars {
 #include <linux/filter.h>
 #include <linux/fs.h>
 #include <linux/keyctl.h>
+#include <linux/magic.h>
+#include <linux/netfilter/nfnetlink.h>
 #include <linux/netlink.h>
+#include <linux/net_namespace.h>
 #include <linux/perf_event.h>
 #include <linux/random.h>
 #include <linux/reboot.h>
@ -183,6 +211,10 @@ struct ltchars {
 #include <linux/vm_sockets.h>
 #include <linux/taskstats.h>
 #include <linux/genetlink.h>
+#include <linux/watchdog.h>
+#include <linux/hdreg.h>
+#include <linux/rtc.h>
+#include <mtd/ubi-user.h>
 #include <net/route.h>
 #include <asm/termbits.h>

@ -218,6 +250,7 @@ includes_NetBSD='
 #include <sys/types.h>
 #include <sys/param.h>
 #include <sys/event.h>
+#include <sys/extattr.h>
 #include <sys/mman.h>
 #include <sys/socket.h>
 #include <sys/sockio.h>
@ -246,9 +279,11 @@ includes_OpenBSD='
 #include <sys/mman.h>
 #include <sys/socket.h>
 #include <sys/sockio.h>
+#include <sys/stat.h>
 #include <sys/sysctl.h>
 #include <sys/termios.h>
 #include <sys/ttycom.h>
+#include <sys/unistd.h>
 #include <sys/wait.h>
 #include <net/bpf.h>
 #include <net/if.h>
@ -280,6 +315,7 @@ includes_SunOS='
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <sys/sockio.h>
+#include <sys/stat.h>
 #include <sys/mman.h>
 #include <sys/wait.h>
 #include <sys/ioctl.h>
@ -358,6 +394,7 @@ ccflags="$@"
 		$2 ~ /^IGN/ ||
 		$2 ~ /^IX(ON|ANY|OFF)$/ ||
 		$2 ~ /^IN(LCR|PCK)$/ ||
+		$2 !~ "X86_CR3_PCID_NOFLUSH" &&
 		$2 ~ /(^FLU?SH)|(FLU?SH$)/ ||
 		$2 ~ /^C(LOCAL|READ|MSPAR|RTSCTS)$/ ||
 		$2 == "BRKINT" ||
@ -376,13 +413,16 @@ ccflags="$@"
 		$2 ~ /^TC[IO](ON|OFF)$/ ||
 		$2 ~ /^IN_/ ||
 		$2 ~ /^LOCK_(SH|EX|NB|UN)$/ ||
-		$2 ~ /^(AF|SOCK|SO|SOL|IPPROTO|IP|IPV6|ICMP6|TCP|EVFILT|NOTE|EV|SHUT|PROT|MAP|PACKET|MSG|SCM|MCL|DT|MADV|PR)_/ ||
+		$2 ~ /^(AF|SOCK|SO|SOL|IPPROTO|IP|IPV6|ICMP6|TCP|EVFILT|NOTE|EV|SHUT|PROT|MAP|T?PACKET|MSG|SCM|MCL|DT|MADV|PR)_/ ||
+		$2 ~ /^TP_STATUS_/ ||
 		$2 ~ /^FALLOC_/ ||
 		$2 == "ICMPV6_FILTER" ||
 		$2 == "SOMAXCONN" ||
 		$2 == "NAME_MAX" ||
 		$2 == "IFNAMSIZ" ||
-		$2 ~ /^CTL_(MAXNAME|NET|QUERY)$/ ||
+		$2 ~ /^CTL_(HW|KERN|MAXNAME|NET|QUERY)$/ ||
+		$2 ~ /^KERN_(HOSTNAME|OS(RELEASE|TYPE)|VERSION)$/ ||
+		$2 ~ /^HW_MACHINE$/ ||
 		$2 ~ /^SYSCTL_VERS/ ||
 		$2 ~ /^(MS|MNT|UMOUNT)_/ ||
 		$2 ~ /^TUN(SET|GET|ATTACH|DETACH)/ ||
@ -390,7 +430,7 @@ ccflags="$@"
 		$2 ~ /^LINUX_REBOOT_CMD_/ ||
 		$2 ~ /^LINUX_REBOOT_MAGIC[12]$/ ||
 		$2 !~ "NLA_TYPE_MASK" &&
-		$2 ~ /^(NETLINK|NLM|NLMSG|NLA|IFA|IFAN|RT|RTCF|RTN|RTPROT|RTNH|ARPHRD|ETH_P)_/ ||
+		$2 ~ /^(NETLINK|NLM|NLMSG|NLA|IFA|IFAN|RT|RTC|RTCF|RTN|RTPROT|RTNH|ARPHRD|ETH_P|NETNSA)_/ ||
 		$2 ~ /^SIOC/ ||
 		$2 ~ /^TIOC/ ||
 		$2 ~ /^TCGET/ ||
@ -416,10 +456,25 @@ ccflags="$@"
 		$2 ~ /^PERF_EVENT_IOC_/ ||
 		$2 ~ /^SECCOMP_MODE_/ ||
 		$2 ~ /^SPLICE_/ ||
+		$2 ~ /^SYNC_FILE_RANGE_/ ||
+		$2 !~ /^AUDIT_RECORD_MAGIC/ &&
+		$2 !~ /IOC_MAGIC/ &&
+		$2 ~ /^[A-Z][A-Z0-9_]+_MAGIC2?$/ ||
 		$2 ~ /^(VM|VMADDR)_/ ||
+		$2 ~ /^IOCTL_VM_SOCKETS_/ ||
 		$2 ~ /^(TASKSTATS|TS)_/ ||
+		$2 ~ /^CGROUPSTATS_/ ||
 		$2 ~ /^GENL_/ ||
-		$2 ~ /^XATTR_(CREATE|REPLACE)/ ||
+		$2 ~ /^STATX_/ ||
+		$2 ~ /^RENAME/ ||
+		$2 ~ /^UBI_IOC[A-Z]/ ||
+		$2 ~ /^UTIME_/ ||
+		$2 ~ /^XATTR_(CREATE|REPLACE|NO(DEFAULT|FOLLOW|SECURITY)|SHOWCOMPRESSION)/ ||
+		$2 ~ /^ATTR_(BIT_MAP_COUNT|(CMN|VOL|FILE)_)/ ||
+		$2 ~ /^FSOPT_/ ||
+		$2 ~ /^WDIOC_/ ||
+		$2 ~ /^NFN/ ||
+		$2 ~ /^(HDIO|WIN|SMART)_/ ||
 		$2 !~ "WMESGLEN" &&
 		$2 ~ /^W[A-Z0-9]+$/ ||
 		$2 ~ /^BLK[A-Z]*(GET$|SET$|BUF$|PART$|SIZE)/ {printf("\t%s = C.%s\n", $2, $2)}
@ -443,7 +498,7 @@ errors=$(
 signals=$(
 	echo '#include <signal.h>' | $CC -x c - -E -dM $ccflags |
 	awk '$1=="#define" && $2 ~ /^SIG[A-Z0-9]+$/ { print $2 }' |
-	egrep -v '(SIGSTKSIZE|SIGSTKSZ|SIGRT)' |
+	egrep -v '(SIGSTKSIZE|SIGSTKSZ|SIGRT|SIGMAX64)' |
 	sort
 )

@ -453,7 +508,7 @@ echo '#include <errno.h>' | $CC -x c - -E -dM $ccflags |
 	sort >_error.grep
 echo '#include <signal.h>' | $CC -x c - -E -dM $ccflags |
 	awk '$1=="#define" && $2 ~ /^SIG[A-Z0-9]+$/ { print "^\t" $2 "[ \t]*=" }' |
-	egrep -v '(SIGSTKSIZE|SIGSTKSZ|SIGRT)' |
+	egrep -v '(SIGSTKSIZE|SIGSTKSZ|SIGRT|SIGMAX64)' |
 	sort >_signal.grep

 echo '// mkerrors.sh' "$@"
@ -489,21 +544,26 @@ echo ')'

 enum { A = 'A', Z = 'Z', a = 'a', z = 'z' }; // avoid need for single quotes below

-int errors[] = {
+struct tuple {
+	int num;
+	const char *name;
+};
+
+struct tuple errors[] = {
 "
 	for i in $errors
 	do
-		echo -E '	'$i,
+		echo -E '	{'$i', "'$i'" },'
 	done

 	echo -E "
 };

-int signals[] = {
+struct tuple signals[] = {
 "
 	for i in $signals
 	do
-		echo -E '	'$i,
+		echo -E '	{'$i', "'$i'" },'
 	done

 	# Use -E because on some systems bash builtin interprets \n itself.
@ -511,9 +571,9 @@ int signals[] = {
 };

 static int
-intcmp(const void *a, const void *b)
+tuplecmp(const void *a, const void *b)
 {
-	return *(int*)a - *(int*)b;
+	return ((struct tuple *)a)->num - ((struct tuple *)b)->num;
 }

 int
@ -523,26 +583,34 @@ main(void)
 	char buf[1024], *p;

 	printf("\n\n// Error table\n");
-	printf("var errors = [...]string {\n");
-	qsort(errors, nelem(errors), sizeof errors[0], intcmp);
+	printf("var errorList = [...]struct {\n");
+	printf("\tnum  syscall.Errno\n");
+	printf("\tname string\n");
+	printf("\tdesc string\n");
+	printf("} {\n");
+	qsort(errors, nelem(errors), sizeof errors[0], tuplecmp);
 	for(i=0; i<nelem(errors); i++) {
-		e = errors[i];
-		if(i > 0 && errors[i-1] == e)
+		e = errors[i].num;
+		if(i > 0 && errors[i-1].num == e)
 			continue;
 		strcpy(buf, strerror(e));
 		// lowercase first letter: Bad -> bad, but STREAM -> STREAM.
 		if(A <= buf[0] && buf[0] <= Z && a <= buf[1] && buf[1] <= z)
 			buf[0] += a - A;
-		printf("\t%d: \"%s\",\n", e, buf);
+		printf("\t{ %d, \"%s\", \"%s\" },\n", e, errors[i].name, buf);
 	}
 	printf("}\n\n");

 	printf("\n\n// Signal table\n");
-	printf("var signals = [...]string {\n");
-	qsort(signals, nelem(signals), sizeof signals[0], intcmp);
+	printf("var signalList = [...]struct {\n");
+	printf("\tnum  syscall.Signal\n");
+	printf("\tname string\n");
+	printf("\tdesc string\n");
+	printf("} {\n");
+	qsort(signals, nelem(signals), sizeof signals[0], tuplecmp);
 	for(i=0; i<nelem(signals); i++) {
-		e = signals[i];
-		if(i > 0 && signals[i-1] == e)
+		e = signals[i].num;
+		if(i > 0 && signals[i-1].num == e)
 			continue;
 		strcpy(buf, strsignal(e));
 		// lowercase first letter: Bad -> bad, but STREAM -> STREAM.
@ -552,7 +620,7 @@ main(void)
 		p = strrchr(buf, ":"[0]);
 		if(p)
 			*p = '\0';
-		printf("\t%d: \"%s\",\n", e, buf);
+		printf("\t{ %d, \"%s\", \"%s\" },\n", e, signals[i].name, buf);
 	}
 	printf("}\n\n");

--- a/vendor/golang.org/x/sys/unix/mkpost.go
+++ b/vendor/golang.org/x/sys/unix/mkpost.go
@ -42,6 +42,10 @@ func main() {
 		log.Fatal(err)
 	}

+	// Intentionally export __val fields in Fsid and Sigset_t
+	valRegex := regexp.MustCompile(`type (Fsid|Sigset_t) struct {(\s+)X__val(\s+\S+\s+)}`)
+	b = valRegex.ReplaceAll(b, []byte("type $1 struct {${2}Val$3}"))
+
 	// If we have empty Ptrace structs, we should delete them. Only s390x emits
 	// nonempty Ptrace structs.
 	ptraceRexexp := regexp.MustCompile(`type Ptrace((Psw|Fpregs|Per) struct {\s*})`)
@ -56,16 +60,22 @@ func main() {
 	removeFieldsRegex := regexp.MustCompile(`X__glibc\S*`)
 	b = removeFieldsRegex.ReplaceAll(b, []byte("_"))

-	// We refuse to export private fields on s390x
-	if goarch == "s390x" && goos == "linux" {
-		// Remove cgo padding fields
-		removeFieldsRegex := regexp.MustCompile(`Pad_cgo_\d+`)
-		b = removeFieldsRegex.ReplaceAll(b, []byte("_"))
+	// Convert [65]int8 to [65]byte in Utsname members to simplify
+	// conversion to string; see golang.org/issue/20753
+	convertUtsnameRegex := regexp.MustCompile(`((Sys|Node|Domain)name|Release|Version|Machine)(\s+)\[(\d+)\]u?int8`)
+	b = convertUtsnameRegex.ReplaceAll(b, []byte("$1$3[$4]byte"))

-		// Remove padding, hidden, or unused fields
-		removeFieldsRegex = regexp.MustCompile(`X_\S+`)
-		b = removeFieldsRegex.ReplaceAll(b, []byte("_"))
-	}
+	// Remove spare fields (e.g. in Statx_t)
+	spareFieldsRegex := regexp.MustCompile(`X__spare\S*`)
+	b = spareFieldsRegex.ReplaceAll(b, []byte("_"))
+
+	// Remove cgo padding fields
+	removePaddingFieldsRegex := regexp.MustCompile(`Pad_cgo_\d+`)
+	b = removePaddingFieldsRegex.ReplaceAll(b, []byte("_"))
+
+	// Remove padding, hidden, or unused fields
+	removeFieldsRegex = regexp.MustCompile(`\b(X_\S+|Padding)`)
+	b = removeFieldsRegex.ReplaceAll(b, []byte("_"))

 	// Remove the first line of warning from cgo
 	b = b[bytes.IndexByte(b, '\n')+1:]
--- a/vendor/golang.org/x/sys/unix/mksyscall.pl
+++ b/vendor/golang.org/x/sys/unix/mksyscall.pl
@ -210,7 +210,15 @@ while(<>) {
 	# Determine which form to use; pad args with zeros.
 	my $asm = "Syscall";
 	if ($nonblock) {
-		$asm = "RawSyscall";
+		if ($errvar eq "" && $ENV{'GOOS'} eq "linux") {
+			$asm = "RawSyscallNoError";
+		} else {
+			$asm = "RawSyscall";
+		}
+	} else {
+		if ($errvar eq "" && $ENV{'GOOS'} eq "linux") {
+			$asm = "SyscallNoError";
+		}
 	}
 	if(@args <= 3) {
 		while(@args < 3) {
@ -284,7 +292,12 @@ while(<>) {
 	if ($ret[0] eq "_" && $ret[1] eq "_" && $ret[2] eq "_") {
 		$text .= "\t$call\n";
 	} else {
-		$text .= "\t$ret[0], $ret[1], $ret[2] := $call\n";
+		if ($errvar eq "" && $ENV{'GOOS'} eq "linux") {
+			# raw syscall without error on Linux, see golang.org/issue/22924
+			$text .= "\t$ret[0], $ret[1] := $call\n";
+		} else {
+			$text .= "\t$ret[0], $ret[1], $ret[2] := $call\n";
+		}
 	}
 	$text .= $body;

--- a/vendor/golang.org/x/sys/unix/mksyscall_aix.pl
+++ b/vendor/golang.org/x/sys/unix/mksyscall_aix.pl
@ -0,0 +1,385 @@
+#!/usr/bin/env perl
+# Copyright 2018 The Go Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file.
+
+# This program reads a file containing function prototypes
+# (like syscall_aix.go) and generates system call bodies.
+# The prototypes are marked by lines beginning with "//sys"
+# and read like func declarations if //sys is replaced by func, but:
+#	* The parameter lists must give a name for each argument.
+#	  This includes return parameters.
+#	* The parameter lists must give a type for each argument:
+#	  the (x, y, z int) shorthand is not allowed.
+#	* If the return parameter is an error number, it must be named err.
+#	* If go func name needs to be different than its libc name,
+#	* or the function is not in libc, name could be specified
+#	* at the end, after "=" sign, like
+#	  //sys getsockopt(s int, level int, name int, val uintptr, vallen *_Socklen) (err error) = libsocket.getsockopt
+
+use strict;
+
+my $cmdline = "mksyscall_aix.pl " . join(' ', @ARGV);
+my $errors = 0;
+my $_32bit = "";
+my $tags = "";  # build tags
+my $aix = 0;
+my $solaris = 0;
+
+binmode STDOUT;
+
+if($ARGV[0] eq "-b32") {
+	$_32bit = "big-endian";
+	shift;
+} elsif($ARGV[0] eq "-l32") {
+	$_32bit = "little-endian";
+	shift;
+}
+if($ARGV[0] eq "-aix") {
+	$aix = 1;
+	shift;
+}
+if($ARGV[0] eq "-tags") {
+	shift;
+	$tags = $ARGV[0];
+	shift;
+}
+
+if($ARGV[0] =~ /^-/) {
+	print STDERR "usage: mksyscall_aix.pl [-b32 | -l32] [-tags x,y] [file ...]\n";
+	exit 1;
+}
+
+sub parseparamlist($) {
+	my ($list) = @_;
+	$list =~ s/^\s*//;
+	$list =~ s/\s*$//;
+	if($list eq "") {
+		return ();
+	}
+	return split(/\s*,\s*/, $list);
+}
+
+sub parseparam($) {
+	my ($p) = @_;
+	if($p !~ /^(\S*) (\S*)$/) {
+		print STDERR "$ARGV:$.: malformed parameter: $p\n";
+		$errors = 1;
+		return ("xx", "int");
+	}
+	return ($1, $2);
+}
+
+my $package = "";
+my $text = "";
+my $c_extern = "/*\n#include <stdint.h>\n";
+my @vars = ();
+while(<>) {
+	chomp;
+	s/\s+/ /g;
+	s/^\s+//;
+	s/\s+$//;
+	$package = $1 if !$package && /^package (\S+)$/;
+	my $nonblock = /^\/\/sysnb /;
+	next if !/^\/\/sys / && !$nonblock;
+
+	# Line must be of the form
+	# func Open(path string, mode int, perm int) (fd int, err error)
+	# Split into name, in params, out params.
+	if(!/^\/\/sys(nb)? (\w+)\(([^()]*)\)\s*(?:\(([^()]+)\))?\s*(?:=\s*(?:(\w*)\.)?(\w*))?$/) {
+		print STDERR "$ARGV:$.: malformed //sys declaration\n";
+		$errors = 1;
+		next;
+	}
+	my ($nb, $func, $in, $out, $modname, $sysname) = ($1, $2, $3, $4, $5, $6);
+
+	# Split argument lists on comma.
+	my @in = parseparamlist($in);
+	my @out = parseparamlist($out);
+
+	$in = join(', ', @in);
+	$out = join(', ', @out);
+
+	# Try in vain to keep people from editing this file.
+	# The theory is that they jump into the middle of the file
+	# without reading the header.
+	$text .= "// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT\n\n";
+
+	# Check if value return, err return available
+	my $errvar = "";
+	my $retvar = "";
+	my $rettype = "";
+	foreach my $p (@out) {
+		my ($name, $type) = parseparam($p);
+		if($type eq "error") {
+			$errvar = $name;
+		} else {
+			$retvar = $name;
+			$rettype = $type;
+		}
+	}
+
+	# System call name.
+	#if($func ne "fcntl") {
+
+	if($sysname eq "") {
+		$sysname = "$func";
+	}
+
+	$sysname =~ s/([a-z])([A-Z])/${1}_$2/g;
+	$sysname =~ y/A-Z/a-z/; # All libc functions are lowercase.
+
+	my $C_rettype = "";
+	if($rettype eq "unsafe.Pointer") {
+		$C_rettype = "uintptr_t";
+	} elsif($rettype eq "uintptr") {
+		$C_rettype = "uintptr_t";
+	} elsif($rettype =~ /^_/) {
+		$C_rettype = "uintptr_t";
+	} elsif($rettype eq "int") {
+		$C_rettype = "int";
+	} elsif($rettype eq "int32") {
+		$C_rettype = "int";
+	} elsif($rettype eq "int64") {
+		$C_rettype = "long long";
+	} elsif($rettype eq "uint32") {
+		$C_rettype = "unsigned int";
+	} elsif($rettype eq "uint64") {
+		$C_rettype = "unsigned long long";
+	} else {
+		$C_rettype = "int";
+	}
+	if($sysname eq "exit") {
+		$C_rettype = "void";
+	}
+
+	# Change types to c
+	my @c_in = ();
+	foreach my $p (@in) {
+		my ($name, $type) = parseparam($p);
+		if($type =~ /^\*/) {
+			push @c_in, "uintptr_t";
+			} elsif($type eq "string") {
+			push @c_in, "uintptr_t";
+		} elsif($type =~ /^\[\](.*)/) {
+			push @c_in, "uintptr_t", "size_t";
+		} elsif($type eq "unsafe.Pointer") {
+			push @c_in, "uintptr_t";
+		} elsif($type eq "uintptr") {
+			push @c_in, "uintptr_t";
+		} elsif($type =~ /^_/) {
+			push @c_in, "uintptr_t";
+		} elsif($type eq "int") {
+			push @c_in, "int";
+		} elsif($type eq "int32") {
+			push @c_in, "int";
+		} elsif($type eq "int64") {
+			push @c_in, "long long";
+		} elsif($type eq "uint32") {
+			push @c_in, "unsigned int";
+		} elsif($type eq "uint64") {
+			push @c_in, "unsigned long long";
+		} else {
+			push @c_in, "int";
+		}
+	}
+
+	if ($func ne "fcntl" && $func ne "FcntlInt" && $func ne "readlen" && $func ne "writelen") {
+		# Imports of system calls from libc
+		$c_extern .= "$C_rettype $sysname";
+		my $c_in = join(', ', @c_in);
+		$c_extern .= "($c_in);\n";
+	}
+
+	# So file name.
+	if($aix) {
+		if($modname eq "") {
+			$modname = "libc.a/shr_64.o";
+		} else {
+			print STDERR "$func: only syscall using libc are available\n";
+			$errors = 1;
+			next;
+		}
+	}
+
+	my $strconvfunc = "C.CString";
+	my $strconvtype = "*byte";
+
+	# Go function header.
+	if($out ne "") {
+		$out = " ($out)";
+	}
+	if($text ne "") {
+		$text .= "\n"
+	}
+
+	$text .= sprintf "func %s(%s)%s {\n", $func, join(', ', @in), $out ;
+
+	# Prepare arguments to call.
+	my @args = ();
+	my $n = 0;
+	my $arg_n = 0;
+	foreach my $p (@in) {
+		my ($name, $type) = parseparam($p);
+		if($type =~ /^\*/) {
+			push @args, "C.uintptr_t(uintptr(unsafe.Pointer($name)))";
+		} elsif($type eq "string" && $errvar ne "") {
+			$text .= "\t_p$n := uintptr(unsafe.Pointer($strconvfunc($name)))\n";
+			push @args, "C.uintptr_t(_p$n)";
+			$n++;
+		} elsif($type eq "string") {
+			print STDERR "$ARGV:$.: $func uses string arguments, but has no error return\n";
+			$text .= "\t_p$n := uintptr(unsafe.Pointer($strconvfunc($name)))\n";
+			push @args, "C.uintptr_t(_p$n)";
+			$n++;
+		} elsif($type =~ /^\[\](.*)/) {
+			# Convert slice into pointer, length.
+			# Have to be careful not to take address of &a[0] if len == 0:
+			# pass nil in that case.
+			$text .= "\tvar _p$n *$1\n";
+			$text .= "\tif len($name) > 0 {\n\t\t_p$n = \&$name\[0]\n\t}\n";
+			push @args, "C.uintptr_t(uintptr(unsafe.Pointer(_p$n)))";
+			$n++;
+			$text .= "\tvar _p$n int\n";
+			$text .= "\t_p$n = len($name)\n";
+			push @args, "C.size_t(_p$n)";
+			$n++;
+		} elsif($type eq "int64" && $_32bit ne "") {
+			if($_32bit eq "big-endian") {
+				push @args, "uintptr($name >> 32)", "uintptr($name)";
+			} else {
+				push @args, "uintptr($name)", "uintptr($name >> 32)";
+			}
+			$n++;
+		} elsif($type eq "bool") {
+			$text .= "\tvar _p$n uint32\n";
+			$text .= "\tif $name {\n\t\t_p$n = 1\n\t} else {\n\t\t_p$n = 0\n\t}\n";
+			push @args, "_p$n";
+			$n++;
+		} elsif($type =~ /^_/) {
+			push @args, "C.uintptr_t(uintptr($name))";
+		} elsif($type eq "unsafe.Pointer") {
+			push @args, "C.uintptr_t(uintptr($name))";
+		} elsif($type eq "int") {
+			if (($arg_n == 2) && (($func eq "readlen") || ($func eq "writelen"))) {
+				push @args, "C.size_t($name)";
+			} elsif ($arg_n == 0 && $func eq "fcntl") {
+				push @args, "C.uintptr_t($name)";
+			} elsif (($arg_n == 2) && (($func eq "fcntl") || ($func eq "FcntlInt"))) {
+				push @args, "C.uintptr_t($name)";
+			} else {
+				push @args, "C.int($name)";
+			}
+		} elsif($type eq "int32") {
+			push @args, "C.int($name)";
+		} elsif($type eq "int64") {
+			push @args, "C.longlong($name)";
+		} elsif($type eq "uint32") {
+			push @args, "C.uint($name)";
+		} elsif($type eq "uint64") {
+			push @args, "C.ulonglong($name)";
+		} elsif($type eq "uintptr") {
+			push @args, "C.uintptr_t($name)";
+		} else {
+			push @args, "C.int($name)";
+		}
+		$arg_n++;
+	}
+	my $nargs = @args;
+
+
+	# Determine which form to use; pad args with zeros.
+	if ($nonblock) {
+	}
+
+	my $args = join(', ', @args);
+	my $call = "";
+	if ($sysname eq "exit") {
+		if ($errvar ne "") {
+			$call .= "er :=";
+		} else {
+			$call .= "";
+		}
+	}  elsif ($errvar ne "") {
+		$call .= "r0,er :=";
+	}  elsif ($retvar ne "") {
+		$call .= "r0,_ :=";
+	}  else {
+		$call .= ""
+	}
+	$call .= "C.$sysname($args)";
+
+	# Assign return values.
+	my $body = "";
+	my $failexpr = "";
+
+	for(my $i=0; $i<@out; $i++) {
+		my $p = $out[$i];
+		my ($name, $type) = parseparam($p);
+		my $reg = "";
+		if($name eq "err") {
+			$reg = "e1";
+		} else {
+			$reg = "r0";
+		}
+		if($reg ne "e1" ) {
+						$body .= "\t$name = $type($reg)\n";
+		}
+	}
+
+	# verify return
+	if ($sysname ne "exit" && $errvar ne "") {
+		if ($C_rettype =~ /^uintptr/) {
+			$body .= "\tif \(uintptr\(r0\) ==\^uintptr\(0\) && er != nil\) {\n";
+			$body .= "\t\t$errvar = er\n";
+			$body .= "\t}\n";
+		} else {
+			$body .= "\tif \(r0 ==-1 && er != nil\) {\n";
+			$body .= "\t\t$errvar = er\n";
+			$body .= "\t}\n";
+		}
+	} elsif ($errvar ne "") {
+		$body .= "\tif \(er != nil\) {\n";
+		$body .= "\t\t$errvar = er\n";
+		$body .= "\t}\n";
+	}
+
+	$text .= "\t$call\n";
+	$text .= $body;
+
+	$text .= "\treturn\n";
+	$text .= "}\n";
+}
+
+if($errors) {
+	exit 1;
+}
+
+print <<EOF;
+// $cmdline
+// Code generated by the command above; see README.md. DO NOT EDIT.
+
+// +build $tags
+
+package $package
+
+
+$c_extern
+*/
+import "C"
+import (
+	"unsafe"
+	"syscall"
+)
+
+
+EOF
+
+print "import \"golang.org/x/sys/unix\"\n" if $package ne "unix";
+
+chomp($_=<<EOF);
+
+$text
+EOF
+print $_;
+exit 0;
--- a/vendor/golang.org/x/sys/unix/mksyscall_solaris.pl
+++ b/vendor/golang.org/x/sys/unix/mksyscall_solaris.pl
--- a/vendor/golang.org/x/sys/unix/mksysctl_openbsd.pl
+++ b/vendor/golang.org/x/sys/unix/mksysctl_openbsd.pl
@ -240,7 +240,7 @@ foreach my $header (@headers) {

 print <<EOF;
 // mksysctl_openbsd.pl
-// MACHINE GENERATED BY THE ABOVE COMMAND; DO NOT EDIT
+// Code generated by the command above; DO NOT EDIT.

 // +build $ENV{'GOARCH'},$ENV{'GOOS'}

--- a/vendor/golang.org/x/sys/unix/mksysnum_darwin.pl
+++ b/vendor/golang.org/x/sys/unix/mksysnum_darwin.pl
--- a/vendor/golang.org/x/sys/unix/mksysnum_dragonfly.pl
+++ b/vendor/golang.org/x/sys/unix/mksysnum_dragonfly.pl
--- a/vendor/golang.org/x/sys/unix/mksysnum_freebsd.pl
+++ b/vendor/golang.org/x/sys/unix/mksysnum_freebsd.pl
@ -27,7 +27,7 @@ const (
 EOF

 while(<>){
-	if(/^([0-9]+)\s+\S+\s+STD\s+({ \S+\s+(\w+).*)$/){
+	if(/^([0-9]+)\s+\S+\s+(?:NO)?STD\s+({ \S+\s+(\w+).*)$/){
 		my $num = $1;
 		my $proto = $2;
 		my $name = "SYS_$3";
--- a/vendor/golang.org/x/sys/unix/mksysnum_netbsd.pl
+++ b/vendor/golang.org/x/sys/unix/mksysnum_netbsd.pl
--- a/vendor/golang.org/x/sys/unix/mksysnum_openbsd.pl
+++ b/vendor/golang.org/x/sys/unix/mksysnum_openbsd.pl
--- a/vendor/golang.org/x/sys/unix/openbsd_pledge.go
+++ b/vendor/golang.org/x/sys/unix/openbsd_pledge.go
@ -8,31 +8,88 @@
 package unix

 import (
+	"errors"
+	"fmt"
+	"strconv"
 	"syscall"
 	"unsafe"
 )

 const (
-	SYS_PLEDGE = 108
+	_SYS_PLEDGE = 108
 )

-// Pledge implements the pledge syscall. For more information see pledge(2).
-func Pledge(promises string, paths []string) error {
-	promisesPtr, err := syscall.BytePtrFromString(promises)
+// Pledge implements the pledge syscall.
+//
+// The pledge syscall does not accept execpromises on OpenBSD releases
+// before 6.3.
+//
+// execpromises must be empty when Pledge is called on OpenBSD
+// releases predating 6.3, otherwise an error will be returned.
+//
+// For more information see pledge(2).
+func Pledge(promises, execpromises string) error {
+	maj, min, err := majmin()
 	if err != nil {
 		return err
 	}
-	promisesUnsafe, pathsUnsafe := unsafe.Pointer(promisesPtr), unsafe.Pointer(nil)
-	if paths != nil {
-		var pathsPtr []*byte
-		if pathsPtr, err = syscall.SlicePtrFromStrings(paths); err != nil {
+
+	// If OpenBSD <= 5.9, pledge is not available.
+	if (maj == 5 && min != 9) || maj < 5 {
+		return fmt.Errorf("pledge syscall is not available on OpenBSD %d.%d", maj, min)
+	}
+
+	// If OpenBSD <= 6.2 and execpromises is not empty
+	// return an error - execpromises is not available before 6.3
+	if (maj < 6 || (maj == 6 && min <= 2)) && execpromises != "" {
+		return fmt.Errorf("cannot use execpromises on OpenBSD %d.%d", maj, min)
+	}
+
+	pptr, err := syscall.BytePtrFromString(promises)
+	if err != nil {
+		return err
+	}
+
+	// This variable will hold either a nil unsafe.Pointer or
+	// an unsafe.Pointer to a string (execpromises).
+	var expr unsafe.Pointer
+
+	// If we're running on OpenBSD > 6.2, pass execpromises to the syscall.
+	if maj > 6 || (maj == 6 && min > 2) {
+		exptr, err := syscall.BytePtrFromString(execpromises)
+		if err != nil {
 			return err
 		}
-		pathsUnsafe = unsafe.Pointer(&pathsPtr[0])
+		expr = unsafe.Pointer(exptr)
 	}
-	_, _, e := syscall.Syscall(SYS_PLEDGE, uintptr(promisesUnsafe), uintptr(pathsUnsafe), 0)
+
+	_, _, e := syscall.Syscall(_SYS_PLEDGE, uintptr(unsafe.Pointer(pptr)), uintptr(expr), 0)
 	if e != 0 {
 		return e
 	}
+
 	return nil
 }
+
+// majmin returns major and minor version number for an OpenBSD system.
+func majmin() (major int, minor int, err error) {
+	var v Utsname
+	err = Uname(&v)
+	if err != nil {
+		return
+	}
+
+	major, err = strconv.Atoi(string(v.Release[0]))
+	if err != nil {
+		err = errors.New("cannot parse major version number returned by uname")
+		return
+	}
+
+	minor, err = strconv.Atoi(string(v.Release[2]))
+	if err != nil {
+		err = errors.New("cannot parse minor version number returned by uname")
+		return
+	}
+
+	return
+}
--- a/Show More
+++ b/Show More