コード例 #1
0
ファイル: fsrepo.go プロジェクト: heems/go-ipfs
func open(repoPath string) (repo.Repo, error) {
	packageLock.Lock()
	defer packageLock.Unlock()

	r, err := newFSRepo(repoPath)
	if err != nil {
		return nil, err
	}

	// Check if its initialized
	if err := checkInitialized(r.path); err != nil {
		return nil, err
	}

	r.lockfile, err = lockfile.Lock(r.path)
	if err != nil {
		return nil, err
	}
	keepLocked := false
	defer func() {
		// unlock on error, leave it locked on success
		if !keepLocked {
			r.lockfile.Close()
		}
	}()

	// Check version, and error out if not matching
	ver, err := mfsr.RepoPath(r.path).Version()
	if err != nil {
		if os.IsNotExist(err) {
			return nil, ErrNoVersion
		}
		return nil, err
	}

	if ver != RepoVersion {
		return nil, fmt.Errorf(errIncorrectRepoFmt, ver, RepoVersion)
	}

	// check repo path, then check all constituent parts.
	if err := dir.Writable(r.path); err != nil {
		return nil, err
	}

	if err := r.openConfig(); err != nil {
		return nil, err
	}

	if err := r.openDatastore(); err != nil {
		return nil, err
	}

	// setup eventlogger
	configureEventLoggerAtRepoPath(r.config, r.path)

	keepLocked = true
	return r, nil
}
コード例 #2
0
ファイル: fsrepo.go プロジェクト: qnib/go-ipfs
func open(repoPath string) (repo.Repo, error) {
	packageLock.Lock()
	defer packageLock.Unlock()

	r, err := newFSRepo(repoPath)
	if err != nil {
		return nil, err
	}

	// Check if its initialized
	if err := checkInitialized(r.path); err != nil {
		return nil, err
	}

	r.lockfile, err = lockfile.Lock(r.path)
	if err != nil {
		return nil, err
	}
	keepLocked := false
	defer func() {
		// unlock on error, leave it locked on success
		if !keepLocked {
			r.lockfile.Close()
		}
	}()

	// Check version, and error out if not matching
	ver, err := mfsr.RepoPath(r.path).Version()
	if err != nil {
		if os.IsNotExist(err) {
			return nil, ErrNoVersion
		}
		return nil, err
	}

	if RepoVersion > ver {
		return nil, ErrNeedMigration
	} else if ver > RepoVersion {
		// program version too low for existing repo
		return nil, fmt.Errorf(programTooLowMessage, RepoVersion, ver)
	}

	// check repo path, then check all constituent parts.
	if err := dir.Writable(r.path); err != nil {
		return nil, err
	}

	if err := r.openConfig(); err != nil {
		return nil, err
	}

	if err := r.openDatastore(); err != nil {
		return nil, err
	}

	keepLocked = true
	return r, nil
}