Golang Storage.URL方法代码示例

// SyncBuiltTools copies to storage a tools tarball and cloned copies for each series.
func SyncBuiltTools(stor storage.Storage, builtTools *BuiltTools, fakeSeries ...string) (*coretools.Tools, error) {
	if err := cloneToolsForSeries(builtTools, fakeSeries...); err != nil {
		return nil, err
	}
	syncContext := &SyncContext{
		Source:       builtTools.Dir,
		Target:       stor,
		AllVersions:  true,
		Dev:          builtTools.Version.IsDev(),
		MajorVersion: builtTools.Version.Major,
		MinorVersion: -1,
	}
	logger.Debugf("uploading tools to cloud storage")
	err := SyncTools(syncContext)
	if err != nil {
		return nil, err
	}
	url, err := stor.URL(builtTools.StorageName)
	if err != nil {
		return nil, err
	}
	return &coretools.Tools{
		Version: builtTools.Version,
		URL:     url,
		Size:    builtTools.Size,
		SHA256:  builtTools.Sha256Hash,
	}, nil
}

// CreateStateFile creates an empty state file on the given storage, and
// returns its URL.
func CreateStateFile(stor storage.Storage) (string, error) {
	err := putState(stor, []byte{})
	if err != nil {
		return "", fmt.Errorf("cannot create initial state file: %v", err)
	}
	return stor.URL(StateFile)
}

// syncBuiltTools copies to storage a tools tarball and cloned copies for each series.
func syncBuiltTools(stor storage.Storage, stream string, builtTools *BuiltAgent, fakeSeries ...string) (*coretools.Tools, error) {
	if err := cloneToolsForSeries(builtTools, stream, fakeSeries...); err != nil {
		return nil, err
	}
	syncContext := &SyncContext{
		Source:              builtTools.Dir,
		TargetToolsFinder:   StorageToolsFinder{stor},
		TargetToolsUploader: StorageToolsUploader{stor, false, false},
		AllVersions:         true,
		Stream:              stream,
		MajorVersion:        builtTools.Version.Major,
		MinorVersion:        -1,
	}
	logger.Debugf("uploading agent binaries to cloud storage")
	err := SyncTools(syncContext)
	if err != nil {
		return nil, err
	}
	url, err := stor.URL(builtTools.StorageName)
	if err != nil {
		return nil, err
	}
	return &coretools.Tools{
		Version: builtTools.Version,
		URL:     url,
		Size:    builtTools.Size,
		SHA256:  builtTools.Sha256Hash,
	}, nil
}

func uploadFakeToolsVersion(stor storage.Storage, toolsDir string, vers version.Binary) (*coretools.Tools, error) {
	logger.Infof("uploading FAKE tools %s", vers)
	tgz, checksum := makeFakeTools(vers)
	size := int64(len(tgz))
	name := envtools.StorageName(vers, toolsDir)
	if err := stor.Put(name, bytes.NewReader(tgz), size); err != nil {
		return nil, err
	}
	url, err := stor.URL(name)
	if err != nil {
		return nil, err
	}
	return &coretools.Tools{URL: url, Version: vers, Size: size, SHA256: checksum}, nil
}

func uploadFakeToolsVersion(stor storage.Storage, vers version.Binary) (*coretools.Tools, error) {
	logger.Infof("uploading FAKE tools %s", vers)
	tgz, checksum := coretesting.TarGz(
		coretesting.NewTarFile("jujud", 0777, "jujud contents "+vers.String()))
	size := int64(len(tgz))
	name := envtools.StorageName(vers)
	if err := stor.Put(name, bytes.NewReader(tgz), size); err != nil {
		return nil, err
	}
	url, err := stor.URL(name)
	if err != nil {
		return nil, err
	}
	return &coretools.Tools{URL: url, Version: vers, Size: size, SHA256: checksum}, nil
}

// UploadToStorage uploads tools and metadata for the specified versions to storage.
func UploadToStorage(c *gc.C, stor storage.Storage, stream string, versions ...version.Binary) map[version.Binary]string {
	uploaded := map[version.Binary]string{}
	if len(versions) == 0 {
		return uploaded
	}
	var err error
	for _, vers := range versions {
		filename := fmt.Sprintf("tools/%s/tools-%s.tar.gz", stream, vers.String())
		// Put a file in images since the dummy storage provider requires a
		// file to exist before the URL can be found. This is to ensure it behaves
		// the same way as MAAS.
		err = stor.Put(filename, strings.NewReader("dummy"), 5)
		c.Assert(err, jc.ErrorIsNil)
		uploaded[vers], err = stor.URL(filename)
		c.Assert(err, jc.ErrorIsNil)
	}
	objects := generateMetadata(c, stream, versions...)
	for _, object := range objects {
		toolspath := path.Join("tools", object.path)
		err = stor.Put(toolspath, bytes.NewReader(object.data), int64(len(object.data)))
		c.Assert(err, jc.ErrorIsNil)
	}
	return uploaded
}