mirror of https://github.com/aptly-dev/aptly
130 lines
3.0 KiB
Go
130 lines
3.0 KiB
Go
package azure
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// Package azure handles publishing to Azure Storage
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import (
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"context"
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"encoding/hex"
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"fmt"
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"io"
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"net/url"
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"path/filepath"
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"time"
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"github.com/Azure/azure-storage-blob-go/azblob"
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"github.com/aptly-dev/aptly/aptly"
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)
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func isBlobNotFound(err error) bool {
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storageError, ok := err.(azblob.StorageError)
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return ok && storageError.ServiceCode() == azblob.ServiceCodeBlobNotFound
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}
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type azContext struct {
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container azblob.ContainerURL
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prefix string
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}
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func newAzContext(accountName, accountKey, container, prefix, endpoint string) (*azContext, error) {
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credential, err := azblob.NewSharedKeyCredential(accountName, accountKey)
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if err != nil {
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return nil, err
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}
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if endpoint == "" {
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endpoint = fmt.Sprintf("https://%s.blob.core.windows.net", accountName)
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}
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url, err := url.Parse(fmt.Sprintf("%s/%s", endpoint, container))
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if err != nil {
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return nil, err
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}
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containerURL := azblob.NewContainerURL(*url, azblob.NewPipeline(credential, azblob.PipelineOptions{}))
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result := &azContext{
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container: containerURL,
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prefix: prefix,
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}
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return result, nil
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}
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func (az *azContext) blobPath(path string) string {
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return filepath.Join(az.prefix, path)
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}
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func (az *azContext) blobURL(path string) azblob.BlobURL {
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return az.container.NewBlobURL(az.blobPath(path))
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}
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func (az *azContext) internalFilelist(prefix string, progress aptly.Progress) (paths []string, md5s []string, err error) {
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const delimiter = "/"
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paths = make([]string, 0, 1024)
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md5s = make([]string, 0, 1024)
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prefix = filepath.Join(az.prefix, prefix)
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if prefix != "" {
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prefix += delimiter
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}
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for marker := (azblob.Marker{}); marker.NotDone(); {
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listBlob, err := az.container.ListBlobsFlatSegment(
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context.Background(), marker, azblob.ListBlobsSegmentOptions{
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Prefix: prefix,
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MaxResults: 1,
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Details: azblob.BlobListingDetails{Metadata: true}})
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if err != nil {
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return nil, nil, fmt.Errorf("error listing under prefix %s in %s: %s", prefix, az, err)
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}
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marker = listBlob.NextMarker
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for _, blob := range listBlob.Segment.BlobItems {
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if prefix == "" {
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paths = append(paths, blob.Name)
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} else {
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paths = append(paths, blob.Name[len(prefix):])
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}
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md5s = append(md5s, fmt.Sprintf("%x", blob.Properties.ContentMD5))
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}
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if progress != nil {
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time.Sleep(time.Duration(500) * time.Millisecond)
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progress.AddBar(1)
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}
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}
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return paths, md5s, nil
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}
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func (az *azContext) putFile(blob azblob.BlobURL, source io.Reader, sourceMD5 string) error {
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uploadOptions := azblob.UploadStreamToBlockBlobOptions{
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BufferSize: 4 * 1024 * 1024,
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MaxBuffers: 8,
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}
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if len(sourceMD5) > 0 {
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decodedMD5, err := hex.DecodeString(sourceMD5)
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if err != nil {
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return err
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}
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uploadOptions.BlobHTTPHeaders = azblob.BlobHTTPHeaders{
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ContentMD5: decodedMD5,
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}
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}
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_, err := azblob.UploadStreamToBlockBlob(
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context.Background(),
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source,
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blob.ToBlockBlobURL(),
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uploadOptions,
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)
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return err
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}
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// String
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func (az *azContext) String() string {
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return fmt.Sprintf("Azure: %s/%s", az.container, az.prefix)
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}
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