Function dotGitToOSFilesystems

repository.go:341–399

(path string, detect bool)

}

func dotGitToOSFilesystems(path string, detect bool) (dot, wt billy.Filesystem, err error) {
	path, err = path_util.ReplaceTildeWithHome(path)
	if err != nil {
		return nil, nil, err
	}

	if path, err = filepath.Abs(path); err != nil {
		return nil, nil, err
	}

	var fs billy.Filesystem
	var fi os.FileInfo
	for {
		fs = osfs.New(path)

		pathinfo, err := fs.Stat("/")
		if !os.IsNotExist(err) {
			if pathinfo == nil {
				return nil, nil, err
			}
			if !pathinfo.IsDir() && detect {
				fs = osfs.New(filepath.Dir(path))
			}
		}

		fi, err = fs.Stat(GitDirName)
		if err == nil {
			// no error; stop
			break
		}
		if !os.IsNotExist(err) {
			// unknown error; stop
			return nil, nil, err
		}
		if detect {
			// try its parent as long as we haven't reached
			// the root dir
			if dir := filepath.Dir(path); dir != path {
				path = dir
				continue
			}
		}
		// not detecting via parent dirs and the dir does not exist;
		// stop
		return fs, nil, nil
	}

	if fi.IsDir() {
		dot, err = fs.Chroot(GitDirName)
		return dot, fs, err
	}

	dot, err = dotGitFileToOSFilesystem(path, fs)
	if err != nil {
		return nil, nil, err
	}

	return dot, fs, nil