git/utlis.go

// Copyright 2015 The Gogs Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.

package git

import (
	"fmt"
	"os"
	"path/filepath"
)

// isDir returns true if given path is a directory,
// or returns false when it's a file or does not exist.
func isDir(dir string) bool {
	f, e := os.Stat(dir)
	if e != nil {
		return false
	}
	return f.IsDir()
}

// isFile returns true if given path is a file,
// or returns false when it's a directory or does not exist.
func isFile(filePath string) bool {
	f, e := os.Stat(filePath)
	if e != nil {
		return false
	}
	return !f.IsDir()
}

func concatenateError(err error, stderr string) error {
	if len(stderr) == 0 {
		return err
	}
	return fmt.Errorf("%v - %s", err, stderr)
}

// If the object is stored in its own file (i.e not in a pack file),
// this function returns the full path to the object file.
// It does not test if the file exists.
func filepathFromSHA1(rootdir, sha1 string) string {
	return filepath.Join(rootdir, "objects", sha1[:2], sha1[2:])
}