// From a git dir, get the location that objects are to be stored (we will store lfs alongside)
// Sometimes there is an additional level of redirect on the .git folder by way of a commondir file
// before you find object storage, e.g. 'git worktree' uses this. It redirects to gitdir either by GIT_DIR
// (during setup) or .git/git-dir: (during use), but this only contains the index etc, the objects
// are found in another git dir via 'commondir'.
func resolveGitStorageDir(gitDir string) string {
commondirpath := filepath.Join(gitDir, "commondir")
if tools.FileExists(commondirpath) && !tools.DirExists(filepath.Join(gitDir, "objects")) {
// no git-dir: prefix in commondir
storage, err := processGitRedirectFile(commondirpath, "")
if err == nil {
return storage
}
}
return gitDir
}
func resolveReferenceDir(gitStorageDir string) string {
cloneReferencePath := filepath.Join(gitStorageDir, "objects", "info", "alternates")
if tools.FileExists(cloneReferencePath) {
buffer, err := ioutil.ReadFile(cloneReferencePath)
if err == nil {
path := strings.TrimSpace(string(buffer[:]))
referenceLfsStoragePath := filepath.Join(filepath.Dir(path), "lfs", "objects")
if tools.DirExists(referenceLfsStoragePath) {
return referenceLfsStoragePath
}
}
}
return ""
}