public async Task WriteToAsync(Stream @out)
{
TarStreamBuilder tarStreamBuilder = new TarStreamBuilder();
DockerLoadManifestEntryTemplate manifestTemplate = new DockerLoadManifestEntryTemplate();
// Adds all the layers to the tarball and manifest.
foreach (ILayer layer in image.GetLayers())
{
string layerName = layer.GetBlobDescriptor().GetDigest().GetHash() + LAYER_FILE_EXTENSION;
tarStreamBuilder.AddBlobEntry(
layer.GetBlob(), layer.GetBlobDescriptor().GetSize(), layerName);
manifestTemplate.AddLayerFile(layerName);
}
// Adds the container configuration to the tarball.
ContainerConfigurationTemplate containerConfiguration =
new ImageToJsonTranslator(image).GetContainerConfiguration();
tarStreamBuilder.AddByteEntry(
JsonTemplateMapper.ToByteArray(containerConfiguration),
CONTAINER_CONFIGURATION_JSON_FILE_NAME);
// Adds the manifest to tarball.
manifestTemplate.SetRepoTags(imageReference.ToStringWithTag());
tarStreamBuilder.AddByteEntry(
JsonTemplateMapper.ToByteArray(new List <DockerLoadManifestEntryTemplate> {
manifestTemplate
}),
MANIFEST_JSON_FILE_NAME);
await tarStreamBuilder.WriteAsTarArchiveToAsync(@out).ConfigureAwait(false);
}
public async Task TestToBlob_multiByteAsync()
{
testTarStreamBuilder.AddByteEntry(Encoding.UTF8.GetBytes("日本語"), "test");
testTarStreamBuilder.AddByteEntry(Encoding.UTF8.GetBytes("asdf"), "crepecake");
testTarStreamBuilder.AddBlobEntry(
Blobs.From("fib"), Encoding.UTF8.GetBytes("fib").Length, "fib");
// Writes the BLOB and captures the output.
MemoryStream tarByteOutputStream = new MemoryStream();
using (Stream compressorStream = new GZipStream(tarByteOutputStream, CompressionMode.Compress))
{
await testTarStreamBuilder.WriteAsTarArchiveToAsync(compressorStream).ConfigureAwait(false);
}
// Rearrange the output into input for verification.
MemoryStream byteArrayInputStream =
new MemoryStream(tarByteOutputStream.ToArray());
Stream tarByteInputStream = new GZipStream(byteArrayInputStream, CompressionMode.Decompress);
using (TarInputStream tarArchiveInputStream = new TarInputStream(tarByteInputStream))
{
// Verify multi-byte characters are written/read correctly
TarEntry headerFile = tarArchiveInputStream.GetNextEntry();
Assert.AreEqual("test", headerFile.Name);
Assert.AreEqual(
"日本語", Encoding.UTF8.GetString(ByteStreams.ToByteArray(tarArchiveInputStream)));
headerFile = tarArchiveInputStream.GetNextEntry();
Assert.AreEqual("crepecake", headerFile.Name);
Assert.AreEqual(
"asdf", Encoding.UTF8.GetString(ByteStreams.ToByteArray(tarArchiveInputStream)));
headerFile = tarArchiveInputStream.GetNextEntry();
Assert.AreEqual("fib", headerFile.Name);
Assert.AreEqual(
"fib", Encoding.UTF8.GetString(ByteStreams.ToByteArray(tarArchiveInputStream)));
Assert.IsNull(tarArchiveInputStream.GetNextEntry());
}
}