move: empty files finder to root

17-project-empty-file-finder/exercises/3-print-directories/solution/main.go

@@ -0,0 +1,51 @@
+// For more tutorials: https://blog.learngoprogramming.com
+//
+// Copyright © 2018 Inanc Gumus
+// Learn Go Programming Course
+// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
+//
+
+package main
+
+import (
+	"fmt"
+	"io/ioutil"
+	"os"
+)
+
+func main() {
+	paths := os.Args[1:]
+	if len(paths) == 0 {
+		fmt.Println("Please provide directory paths")
+		return
+	}
+
+	var dirs []byte
+
+	for _, dir := range paths {
+		files, err := ioutil.ReadDir(dir)
+		if err != nil {
+			fmt.Println(err)
+			return
+		}
+
+		dirs = append(dirs, dir...)
+		dirs = append(dirs, '\n')
+
+		for _, file := range files {
+			if file.IsDir() {
+				dirs = append(dirs, '\t')
+				dirs = append(dirs, file.Name()...)
+				dirs = append(dirs, '/', '\n')
+			}
+		}
+
+		dirs = append(dirs, '\n')
+	}
+
+	err := ioutil.WriteFile("dirs.txt", dirs, 0644)
+	if err != nil {
+		fmt.Println(err)
+		return
+	}
+}