/// <summary>
/// Get a tree item blob from github.
/// </summary>
/// <param name="path">Base path of final git file</param>
/// <param name="treeItem">Tree item to retrieve</param>
/// <param name="owner">Organization</param>
/// <param name="repo">Repository</param>
/// <returns>Git file with tree item contents.</returns>
private async Task <GitFile> GetGitItemImpl(string path, TreeItem treeItem, string owner, string repo)
{
Octokit.Blob blob = await ExponentialRetry.RetryAsync(
async() => await Client.Git.Blob.Get(owner, repo, treeItem.Sha),
ex => _logger.LogError(ex, $"Failed to get blob at sha {treeItem.Sha}"),
ex => ex is ApiException apiex && apiex.StatusCode >= HttpStatusCode.InternalServerError);
ContentEncoding encoding;
switch (blob.Encoding.Value)
{
case EncodingType.Base64:
encoding = ContentEncoding.Base64;
break;
case EncodingType.Utf8:
encoding = ContentEncoding.Utf8;
break;
default:
throw new NotImplementedException($"Unknown github encoding type {blob.Encoding.StringValue}");
}
GitFile newFile = new GitFile(
path + "/" + treeItem.Path,
blob.Content,
encoding,
treeItem.Mode);
return(newFile);
}
/// <summary>
/// Retrieve a set of file under a specific path at a commit
/// </summary>
/// <param name="repoUri">Repository URI</param>
/// <param name="commit">Commit to get files at</param>
/// <param name="path">Path to retrieve files from</param>
/// <returns>Set of files under <paramref name="path"/> at <paramref name="commit"/></returns>
public async Task <List <GitFile> > GetFilesAtCommitAsync(string repoUri, string commit, string path)
{
path = path.Replace('\\', '/');
path = path.TrimStart('/').TrimEnd('/');
(string owner, string repo) = ParseRepoUri(repoUri);
if (string.IsNullOrEmpty(owner) || string.IsNullOrEmpty(repo))
{
_logger.LogInformation($"'owner' or 'repository' couldn't be inferred from '{repoUri}'. " +
$"Not getting files from 'eng/common...'");
return(new List <GitFile>());
}
TreeResponse pathTree = await GetTreeForPathAsync(owner, repo, commit, path);
TreeResponse recursiveTree = await GetRecursiveTreeAsync(owner, repo, pathTree.Sha);
GitFile[] files = await Task.WhenAll(
recursiveTree.Tree.Where(treeItem => treeItem.Type == TreeType.Blob)
.Select(
async treeItem =>
{
Blob blob = await ExponentialRetry.RetryAsync(
async() => await Client.Git.Blob.Get(owner, repo, treeItem.Sha),
ex => _logger.LogError(ex, $"Failed to get blob at sha {treeItem.Sha}"),
ex => ex is ApiException apiex && apiex.StatusCode >= HttpStatusCode.InternalServerError);
ContentEncoding encoding;
switch (blob.Encoding.Value)
{
case EncodingType.Base64:
encoding = ContentEncoding.Base64;
break;
case EncodingType.Utf8:
encoding = ContentEncoding.Utf8;
break;
default:
throw new NotImplementedException($"Unknown github encoding type {blob.Encoding.StringValue}");
}
return(new GitFile(
path + "/" + treeItem.Path,
blob.Content,
encoding)
{
Mode = treeItem.Mode
});
}));
return(files.ToList());
}