func resolveGitDirFromCurrentDir() (string, string, error) {
// Get root of the git working dir
gitDir, err := git.GitDir()
if err != nil {
return "", "", err
}
// Allow this to fail, will do so if GIT_DIR isn't set but GIT_WORK_TREE is rel
// Dealt with by parent
rootDir, _ := git.RootDir()
return rootDir, gitDir, nil
}
// lockPaths relativizes the given filepath such that it is relative to the root
// path of the repository it is contained within, taking into account the
// working directory of the caller.
//
// If the root directory, working directory, or file cannot be
// determined/opened, an error will be returned. If the file in question is
// actually a directory, an error will be returned. Otherwise, the cleaned path
// will be returned.
//
// For example:
// - Working directory: /code/foo/bar/
// - Repository root: /code/foo/
// - File to lock: ./baz
// - Resolved path bar/baz
func lockPath(file string) (string, error) {
repo, err := git.RootDir()
if err != nil {
return "", err
}
wd, err := os.Getwd()
if err != nil {
return "", err
}
abs := filepath.Join(wd, file)
path := strings.TrimPrefix(abs, repo)
if stat, err := os.Stat(abs); err != nil {
return "", err
} else {
if stat.IsDir() {
return "", fmt.Errorf("lfs: cannot lock directory: %s", file)
}
return path[1:], nil
}
}