Add new dir structure util to ensure correct dir permissions in a structure

utils/structure_test.go

@@ -0,0 +1,72 @@
+// +build !windows
+
+package utils
+
+import (
+	"fmt"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+	"strings"
+)
+
+func ExampleDirStructure() {
+	// output:
+	// / [755]
+	// /repo [777]
+	// /repo/b [755]
+	// /repo/b/c [750]
+	// /repo/b/d [755]
+	// /repo/b/d/e [755]
+	// /repo/b/d/f [755]
+	// /secret [700]
+
+	basePath, err := ioutil.TempDir("", "")
+	if err != nil {
+		fmt.Println(err)
+		return
+	}
+
+	ds := NewDirStructure(basePath, 0755)
+	secret := ds.ChildDir("secret", 0700)
+	repo := ds.ChildDir("repo", 0777)
+	_ = repo.ChildDir("a", 0700)
+	b := repo.ChildDir("b", 0755)
+	c := b.ChildDir("c", 0750)
+
+	err = ds.Ensure()
+	if err != nil {
+		fmt.Println(err)
+	}
+
+	err = c.Ensure()
+	if err != nil {
+		fmt.Println(err)
+	}
+
+	err = secret.Ensure()
+	if err != nil {
+		fmt.Println(err)
+	}
+
+	err = b.EnsureRelDir("d", "e")
+	if err != nil {
+		fmt.Println(err)
+	}
+
+	err = b.EnsureRelPath("d/f")
+	if err != nil {
+		fmt.Println(err)
+	}
+
+	filepath.Walk(basePath, func(path string, info os.FileInfo, err error) error {
+		if err == nil {
+			dir := strings.TrimPrefix(path, basePath)
+			if dir == "" {
+				dir = "/"
+			}
+			fmt.Printf("%s [%o]\n", dir, info.Mode().Perm())
+		}
+		return nil
+	})
+}