public async Task <BuildResult> CallAsync()
{
await pullAndCacheBaseImageLayersStep.GetFuture().ConfigureAwait(false);
await buildAndCacheApplicationLayersStep.GetFuture().ConfigureAwait(false);
await buildImageStep.GetFuture().ConfigureAwait(false);
string description = string.Format(
CultureInfo.CurrentCulture,
Resources.WriteTarFileStepDescriptionFormat,
outputPath.GetFileName());
buildConfiguration.GetEventHandlers().Dispatch(LogEvent.Progress(description));
using (progressEventDispatcherFactory.Create(description, this.Index))
{
Image image = await buildImageStep.GetFuture().ConfigureAwait(false);
// Builds the image to a tarball.
Files.CreateDirectories(outputPath.GetParent());
using (Stream outputStream =
new BufferedStream(FileOperations.NewLockingOutputStream(outputPath)))
{
await new ImageTarball(image, buildConfiguration.GetTargetImageConfiguration().GetImage())
.WriteToAsync(outputStream).ConfigureAwait(false);
}
return(await BuildResult.FromImageAsync(image, buildConfiguration.GetTargetFormat()).ConfigureAwait(false));
}
}
private Credential RetrieveFromDockerCredentialHelper(SystemPath credentialHelper)
{
Credential credentials =
dockerCredentialHelperFactory(imageReference.GetRegistry(), credentialHelper)
.Retrieve();
LogGotCredentialsFrom(credentialHelper.GetFileName().ToString());
return(credentials);
}
/**
* Gets the diff ID portion of the layer filename.
*
* @param layerFile the layer file to parse for the diff ID
* @return the diff ID portion of the layer file filename
* @throws CacheCorruptedException if no valid diff ID could be parsed
*/
public DescriptorDigest GetDiffId(SystemPath layerFile)
{
try
{
layerFile = layerFile ?? throw new ArgumentNullException(nameof(layerFile));
string diffId = layerFile.GetFileName().ToString();
return(DescriptorDigest.FromHash(diffId));
}
catch (Exception ex) when(ex is DigestException || ex is IndexOutOfRangeException)
{
throw new CacheCorruptedException(
cacheDirectory, "Layer file did not include valid diff ID: " + layerFile, ex);
}
}
public static string GetFileName(string path)
{
return(SystemPath.GetFileName(path));
}
/**
* Returns whether or not {@code file} is a layer contents file.
*
* @param file the file to check
* @return {@code true} if {@code file} is a layer contents file; {@code false} otherwise
*/
public static bool IsLayerFile(SystemPath file)
{
return(file?.GetFileName().ToString().Length == DescriptorDigest.HashLength);
}