Initial script

main.go

@@ -0,0 +1,76 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"github.com/skip2/go-qrcode"
+	"io/ioutil"
+	"os"
+	"path"
+	"path/filepath"
+	"strings"
+)
+
+func handleErr(format string, args ...interface{}) {
+	fmt.Printf(format, args)
+	os.Exit(1)
+}
+
+func readText() (text string, err error) {
+	cr := bufio.NewReader(os.Stdin)
+	text, err = cr.ReadString('\n')
+	return
+}
+
+func main() {
+
+	// 1. Get directory
+	cwd, err := os.Getwd()
+	if err != nil {
+		handleErr("Could not get current working dir: %s", err)
+	}
+	fmt.Printf("Enter the directory path with text files [%s]\n\r", cwd)
+	workingDir, err := readText()
+	if err != nil {
+		handleErr("Could not get current dir: %s", err)
+	}
+	if workingDir == "" {
+		workingDir = cwd
+	}
+
+	outPath := path.Join(workingDir, "qrcodes")
+	if err := os.MkdirAll(outPath, 0755); err != nil {
+		handleErr("Could not create output folder: %s", err)
+	}
+
+	// 2. Get Files
+	files, err := filepath.Glob(path.Join(workingDir, "*.txt"))
+	if err != nil {
+		handleErr("Could not get files: %s", err)
+	}
+
+	fmt.Printf("Generating %d QR Codes...\n\r", len(files))
+
+	for _, file := range files {
+		f, err := os.Open(file)
+		if err != nil {
+			handleErr("Could not open file '%s': %s", file, err)
+		}
+		if !strings.HasSuffix(f.Name(), ".txt") {
+			continue
+		}
+		content, err := ioutil.ReadFile(path.Join(workingDir, f.Name()))
+		if err != nil {
+			handleErr("Could not open file '%s': %s", f.Name(), err)
+		}
+		// 3. Generate QR-Codes and save
+		err = qrcode.WriteFile(string(content), qrcode.High, 1024, path.Join(outPath, strings.TrimSuffix(f.Name(), path.Ext(file))))
+		if err != nil {
+			handleErr("Could not create qr code for file '%s': %s", f.Name(), err)
+		}
+		fmt.Printf("Generated QR Code for %s\n\r", f.Name())
+	}
+
+	// 4. Done
+	fmt.Println("Done!")
+}