コード例 #1
0
ファイル: manager.go プロジェクト: kubernetes/helm
// Update updates a local charts directory.
//
// It first reads the requirements.yaml file, and then attempts to
// negotiate versions based on that. It will download the versions
// from remote chart repositories.
func (m *Manager) Update() error {
	c, err := m.loadChartDir()
	if err != nil {
		return err
	}

	// If no requirements file is found, we consider this a successful
	// completion.
	req, err := chartutil.LoadRequirements(c)
	if err != nil {
		if err == chartutil.ErrRequirementsNotFound {
			fmt.Fprintf(m.Out, "No requirements found in %s/charts.\n", m.ChartPath)
			return nil
		}
		return err
	}

	// Check that all of the repos we're dependent on actually exist and
	// the repo index names.
	repoNames, err := m.getRepoNames(req.Dependencies)
	if err != nil {
		return err
	}

	// For each repo in the file, update the cached copy of that repo
	if err := m.UpdateRepositories(); err != nil {
		return err
	}

	// Now we need to find out which version of a chart best satisfies the
	// requirements the requirements.yaml
	lock, err := m.resolve(req, repoNames)
	if err != nil {
		return err
	}

	// Now we need to fetch every package here into charts/
	if err := m.downloadAll(lock.Dependencies); err != nil {
		return err
	}

	// If the lock file hasn't changed, don't write a new one.
	oldLock, err := chartutil.LoadRequirementsLock(c)
	if err == nil && oldLock.Digest == lock.Digest {
		return nil
	}

	// Finally, we need to write the lockfile.
	return writeLock(m.ChartPath, lock)
}
コード例 #2
0
ファイル: manager.go プロジェクト: kubernetes/helm
// Build rebuilds a local charts directory from a lockfile.
//
// If the lockfile is not present, this will run a Manager.Update()
func (m *Manager) Build() error {
	c, err := m.loadChartDir()
	if err != nil {
		return err
	}

	// If a lock file is found, run a build from that. Otherwise, just do
	// an update.
	lock, err := chartutil.LoadRequirementsLock(c)
	if err != nil {
		return m.Update()
	}

	// A lock must accompany a requirements.yaml file.
	req, err := chartutil.LoadRequirements(c)
	if err != nil {
		return fmt.Errorf("requirements.yaml cannot be opened: %s", err)
	}
	if sum, err := resolver.HashReq(req); err != nil || sum != lock.Digest {
		return fmt.Errorf("requirements.lock is out of sync with requirements.yaml")
	}

	// Check that all of the repos we're dependent on actually exist.
	if err := m.hasAllRepos(lock.Dependencies); err != nil {
		return err
	}

	// For each repo in the file, update the cached copy of that repo
	if err := m.UpdateRepositories(); err != nil {
		return err
	}

	// Now we need to fetch every package here into charts/
	if err := m.downloadAll(lock.Dependencies); err != nil {
		return err
	}

	return nil
}