Moved everything out of internal

utils/file.go

@@ -0,0 +1,66 @@
+package utils
+
+import (
+	"github.com/h2non/filetype"
+	"github.com/h2non/filetype/types"
+	"os"
+	"path/filepath"
+)
+
+func FileType(filePath string) (types.Type, error) {
+	file, _ := os.Open(filePath)
+
+	// We only have to pass the file header = first 261 bytes
+	head := make([]byte, 261)
+	_, _ = file.Read(head)
+
+	return filetype.Match(head)
+}
+
+func FileExists(path string) (bool, error) {
+	_, err := os.Stat(path)
+	if err == nil {
+		return true, nil
+	} else if os.IsNotExist(err) {
+		return false, err
+	} else {
+		panic(err)
+	}
+}
+
+func EnsureDir(path string) error {
+	exists, err := FileExists(path)
+	if !exists {
+		err = os.Mkdir(path, 0755)
+		return err
+	}
+	return err
+}
+
+// TODO test
+func RemoveDir(path string) error {
+	return os.RemoveAll(path)
+}
+
+// TODO test
+func EmptyDir(path string) error {
+	d, err := os.Open(path)
+	if err != nil {
+		return err
+	}
+	defer d.Close()
+
+	names, err := d.Readdirnames(-1)
+	if err != nil {
+		return err
+	}
+
+	for _, name := range names {
+		err = os.RemoveAll(filepath.Join(path, name))
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}