protected string GetCacheServerUrlFromConfig(string repoUrl)
{
GitProcess git = new GitProcess(this);
string cacheConfigName = GetCacheConfigSettingName(repoUrl);
string cacheServerUrl = git.GetFromConfig(cacheConfigName);
if (string.IsNullOrWhiteSpace(cacheServerUrl))
{
// Try getting from the deprecated setting for compatibility reasons
cacheServerUrl = StripObjectsEndpointSuffix(git.GetFromConfig(DeprecatedObjectsEndpointGitConfigName));
// Upgrade for future runs, but not at clone time.
if (!string.IsNullOrWhiteSpace(cacheServerUrl) && Directory.Exists(this.WorkingDirectoryRoot))
{
git.SetInLocalConfig(cacheConfigName, cacheServerUrl);
git.DeleteFromLocalConfig(DeprecatedObjectsEndpointGitConfigName);
}
}
// Default to uncached url
if (string.IsNullOrWhiteSpace(cacheServerUrl))
{
return(repoUrl);
}
return(cacheServerUrl);
}
private static string GetValueFromConfig(GitProcess git, string configName, bool localOnly)
{
GitProcess.ConfigResult result =
localOnly
? git.GetFromLocalConfig(configName)
: git.GetFromConfig(configName);
if (!result.TryParseAsString(out string value, out string error))
{
throw new InvalidRepoException(error);
}
return(value);
}
private string GetFromConfig(GitProcess git, string configName)
{
GitProcess.Result result = git.GetFromConfig(configName);
// Git returns non-zero for non-existent settings and errors.
if (!result.HasErrors)
{
return(result.Output.TrimEnd('\n'));
}
else if (result.Errors.Any())
{
throw new InvalidRepoException("Error while reading '" + configName + "' from config: " + result.Errors);
}
return(null);
}
private bool GetIsIndexSigningOff()
{
// The first bit of core.gvfs is set if index signing is turned off.
const uint CoreGvfsUnsignedIndexFlag = 1;
GitProcess git = new GitProcess(this.Enlistment);
GitProcess.Result configCoreGvfs = git.GetFromConfig("core.gvfs");
uint valueCoreGvfs;
// No errors getting the configuration and it is either "true" or numeric with the right bit set.
return(!configCoreGvfs.HasErrors &&
!string.IsNullOrEmpty(configCoreGvfs.Output) &&
(configCoreGvfs.Output.Equals("true", StringComparison.OrdinalIgnoreCase) ||
(uint.TryParse(configCoreGvfs.Output, out valueCoreGvfs) &&
((valueCoreGvfs & CoreGvfsUnsignedIndexFlag) == CoreGvfsUnsignedIndexFlag))));
}
private static string GetValueFromConfig(GitProcess git, string configName, bool localOnly)
{
GitProcess.Result result =
localOnly
? git.GetFromLocalConfig(configName)
: git.GetFromConfig(configName);
if (!result.HasErrors)
{
return(result.Output.TrimEnd('\n'));
}
else if (result.Errors.Any())
{
throw new InvalidRepoException("Error while reading '" + configName + "' from config: " + result.Errors);
}
return(null);
}
private static bool TryGetFromGitConfig(GitProcess git, string configName, int defaultValue, int minValue, out int value, out string error)
{
value = defaultValue;
error = string.Empty;
GitProcess.Result result = git.GetFromConfig(configName);
if (result.HasErrors)
{
if (result.Errors.Any())
{
error = "Error while reading '" + configName + "' from config: " + result.Errors;
return(false);
}
// Git returns non-zero for non-existent settings and errors.
return(true);
}
string valueString = result.Output.TrimEnd('\n');
if (string.IsNullOrWhiteSpace(valueString))
{
// Use default value
return(true);
}
if (!int.TryParse(valueString, out value))
{
error = string.Format("Misconfigured config setting {0}, could not parse value {1}", configName, valueString);
return(false);
}
if (value < minValue)
{
error = string.Format("Invalid value {0} for setting {1}, value must be greater than or equal to {2}", value, configName, minValue);
return(false);
}
return(true);
}
private static bool TryGetFromGitConfig(GitProcess git, string configName, int defaultValue, int minValue, out int value, out string error)
{
GitProcess.ConfigResult result = git.GetFromConfig(configName);
return(result.TryParseAsInt(defaultValue, minValue, out value, out error));
}
/// <param name="branchOrCommit">A specific branch to filter for, or null for all branches returned from info/refs</param>
public override void FastFetch(string branchOrCommit, bool isBranch)
{
if (string.IsNullOrWhiteSpace(branchOrCommit))
{
throw new FetchException("Must specify branch or commit to fetch");
}
GitRefs refs = null;
string commitToFetch;
if (isBranch)
{
refs = this.HttpGitObjects.QueryInfoRefs(branchOrCommit);
if (refs == null)
{
throw new FetchException("Could not query info/refs from: {0}", this.Enlistment.RepoUrl);
}
else if (refs.Count == 0)
{
throw new FetchException("Could not find branch {0} in info/refs from: {1}", branchOrCommit, this.Enlistment.RepoUrl);
}
commitToFetch = refs.GetTipCommitIds().Single();
}
else
{
commitToFetch = branchOrCommit;
}
this.DownloadMissingCommit(commitToFetch, this.GitObjects);
// Configure pipeline
// Checkout uses DiffHelper when running checkout.Start(), which we use instead of LsTreeHelper like in FetchHelper.cs
// Checkout diff output => FindMissingBlobs => BatchDownload => IndexPack => Checkout available blobs
CheckoutJob checkout = new CheckoutJob(this.checkoutThreadCount, this.PathWhitelist, commitToFetch, this.Tracer, this.Enlistment);
FindMissingBlobsJob blobFinder = new FindMissingBlobsJob(this.SearchThreadCount, checkout.RequiredBlobs, checkout.AvailableBlobShas, this.Tracer, this.Enlistment);
BatchObjectDownloadJob downloader = new BatchObjectDownloadJob(this.DownloadThreadCount, this.ChunkSize, blobFinder.DownloadQueue, checkout.AvailableBlobShas, this.Tracer, this.Enlistment, this.HttpGitObjects, this.GitObjects);
IndexPackJob packIndexer = new IndexPackJob(this.IndexThreadCount, downloader.AvailablePacks, checkout.AvailableBlobShas, this.Tracer, this.GitObjects);
// Start pipeline
downloader.Start();
blobFinder.Start();
checkout.Start();
blobFinder.WaitForCompletion();
this.HasFailures |= blobFinder.HasFailures;
// Delay indexing. It interferes with FindMissingBlobs, and doesn't help Bootstrapping.
packIndexer.Start();
downloader.WaitForCompletion();
this.HasFailures |= downloader.HasFailures;
packIndexer.WaitForCompletion();
this.HasFailures |= packIndexer.HasFailures;
// Since pack indexer is the last to finish before checkout finishes, it should propagate completion.
// This prevents availableObjects from completing before packIndexer can push its objects through this link.
checkout.AvailableBlobShas.CompleteAdding();
checkout.WaitForCompletion();
this.HasFailures |= checkout.HasFailures;
if (!this.SkipConfigUpdate && !this.HasFailures)
{
this.UpdateRefs(branchOrCommit, isBranch, refs);
if (isBranch)
{
// Update the refspec before setting the upstream or git will complain the remote branch doesn't exist
this.HasFailures |= !RefSpecHelpers.UpdateRefSpec(this.Tracer, this.Enlistment, branchOrCommit, refs);
using (ITracer activity = this.Tracer.StartActivity("SetUpstream", EventLevel.Informational))
{
string remoteBranch = refs.GetBranchRefPairs().Single().Key;
GitProcess git = new GitProcess(this.Enlistment);
GitProcess.Result result = git.SetUpstream(branchOrCommit, remoteBranch);
if (result.HasErrors)
{
activity.RelatedError("Could not set upstream for {0} to {1}: {2}", branchOrCommit, remoteBranch, result.Errors);
this.HasFailures = true;
}
}
}
// Update the index
using (ITracer activity = this.Tracer.StartActivity("UpdateIndex", EventLevel.Informational))
{
// The first bit of core.gvfs is set if index signing is turned off.
const uint CoreGvfsUnsignedIndexFlag = 1;
GitProcess git = new GitProcess(this.Enlistment);
// Only update the index if index signing is turned off.
// The first bit of core.gvfs is set if signing is turned off.
GitProcess.Result configCoreGvfs = git.GetFromConfig("core.gvfs");
uint valueCoreGvfs;
// No errors getting the configuration *and it is either "true" or numeric with the right bit set.
bool indexSigningIsTurnedOff =
!configCoreGvfs.HasErrors &&
!string.IsNullOrEmpty(configCoreGvfs.Output) &&
(configCoreGvfs.Output.Equals("true", StringComparison.OrdinalIgnoreCase) ||
(uint.TryParse(configCoreGvfs.Output, out valueCoreGvfs) &&
((valueCoreGvfs & CoreGvfsUnsignedIndexFlag) == CoreGvfsUnsignedIndexFlag)));
// Create the index object now so it can track the current index
Index index = indexSigningIsTurnedOff ? new Index(this.Enlistment.EnlistmentRoot, activity) : null;
GitProcess.Result result;
using (ITracer updateIndexActivity = this.Tracer.StartActivity("ReadTree", EventLevel.Informational))
{
result = git.ReadTree("HEAD");
}
if (result.HasErrors)
{
activity.RelatedError("Could not read HEAD tree to update index: " + result.Errors);
this.HasFailures = true;
}
else
{
if (index != null)
{
// Update from disk only if the caller says it is ok via command line
// or if we updated the whole tree and know that all files are up to date
bool allowIndexMetadataUpdateFromWorkingTree = this.allowIndexMetadataUpdateFromWorkingTree || checkout.UpdatedWholeTree;
// Update
index.UpdateFileSizesAndTimes(allowIndexMetadataUpdateFromWorkingTree);
}
else
{
activity.RelatedEvent(EventLevel.Informational, "Core.gvfs is not set, so not updating index entries with file times and sizes.", null);
}
}
}
}
}
