internal GitReferenceChange(GitReferenceLogRecord record)
{
OriginalId = record.Original;
TargetId = record.Target;
_signature = record.Signature;
Reason = record.Reason ?? "";
}
private Task AppendLog(string name, GitReferenceLogRecord log)
{
name = "logs/" + name;
string path = Path.Combine(Repository.GitDirectory, name) !;
Directory.CreateDirectory(Path.GetDirectoryName(path) !);
#if !NETFRAMEWORK
return(File.AppendAllTextAsync(path, log.ToString()));
#else
File.AppendAllText(path, log.ToString());
return(Task.CompletedTask);
#endif
}
private async ValueTask CommitUpdateFileReferences()
{
foreach (var v in Updates.Where(x => x.Type == UpdateType.Verify))
{
var r = await _referenceRepository.GetAsync(v.Name).ConfigureAwait(false);
if (r is null || r.Id != v.Id)
{
throw new GitException($"Reference {v.Name} is not {v.Id}, but {r?.Id ?? Zero}");
}
}
Action?unlock = null;
string?hookData = null;
bool? logRefUpdates = null;
try
{
foreach (var v in Updates.Select(x => x.Name).Distinct())
{
var name = v;
if (GitReference.AllUpper(name))
{
var rf = await _referenceRepository.GetAsync(v).ConfigureAwait(false);
if (rf is GitSymbolicReference sr)
{
rf = await sr.ResolveAsync().ConfigureAwait(false);
name = (rf as GitSymbolicReference)?.ReferenceName ?? rf.Name ?? name;
}
}
string path = Path.Combine(Repository.GitDirectory, name);
Directory.CreateDirectory(Path.GetDirectoryName(path) !);
string p = path + ".lock";
#pragma warning disable CA2000 // Dispose objects before losing scope
var f = new FileStream(path + ".lock", FileMode.CreateNew);
#pragma warning restore CA2000 // Dispose objects before losing scope
unlock += () => { f.Close(); File.Delete(p); };
}
bool allowContinue = true;
if (!string.IsNullOrEmpty(GitConfiguration.GitProgramPath) &&
await Repository.Configuration.HookExistsAsync("reference-transaction").ConfigureAwait(false))
{
StringBuilder sb = new StringBuilder();
foreach (var v in Updates)
{
GitReference?rf;
// We might record 'HEAD' when we really update something like 'refs/heads/main'
// This might need fixing when things are fixed in git itself
switch (v.Type)
{
case UpdateType.Create:
sb.Append(Zero);
sb.Append(' ');
sb.Append(v.Id);
sb.Append(' ');
sb.Append(v.Name);
sb.Append('\n');
break;
case UpdateType.Update:
rf = await _referenceRepository.GetAsync(v.Name).ConfigureAwait(false);
sb.Append(rf?.Id ?? Zero);
sb.Append(' ');
sb.Append(v.Id);
sb.Append(' ');
sb.Append(v.Name);
sb.Append('\n');
break;
case UpdateType.Delete:
rf = await _referenceRepository.GetAsync(v.Name).ConfigureAwait(false);
if (rf?.Id != null)
{
sb.Append(rf.Id);
sb.Append(' ');
sb.Append(Zero);
sb.Append(' ');
sb.Append(v.Name);
sb.Append('\n');
}
break;
}
}
if (sb.Length > 0)
{
hookData = sb.ToString();
}
if (hookData is not null)
{
var r = await Repository.RunHookErrAsync("reference-transaction", new[] { "prepared" }, stdinText : hookData, expectedResults : Array.Empty <int>()).ConfigureAwait(false);
if (r.ExitCode != 0)
{
throw new GitException($"Git reference-transaction denied update: {r.OutputText} ({r.ErrorText})");
}
}
}
if (allowContinue)
{
var signature = Repository.Configuration.Identity.AsRecord();
foreach (var v in Updates)
{
GitId? originalId = null;
GitReference?rf = null;
switch (v.Type)
{
case UpdateType.Create:
using (var fs = new FileStream(Path.Combine(Repository.GitDirectory, v.TargetName), FileMode.CreateNew))
using (var sw = new StreamWriter(fs))
{
await sw.WriteLineAsync(v.Id !.ToString()).ConfigureAwait(false);
}
break;
case UpdateType.Update:
rf = await _referenceRepository.GetAsync(v.Name).ConfigureAwait(false);
if (rf is GitSymbolicReference sr)
{
rf = await sr.ResolveAsync().ConfigureAwait(false);
v.TargetName = (rf as GitSymbolicReference)?.ReferenceName ?? rf.Name ?? v.Name;
}
originalId = rf?.Id;
using (var fs = new FileStream(Path.Combine(Repository.GitDirectory, v.TargetName), FileMode.Create))
using (var sw = new StreamWriter(fs))
{
fs.SetLength(0);
await sw.WriteLineAsync(v.Id !.ToString()).ConfigureAwait(false);
}
break;
case UpdateType.Delete:
rf = await _referenceRepository.GetAsync(v.Name).ConfigureAwait(false);
if (rf is GitSymbolicReference sr2)
{
rf = await sr2.ResolveAsync().ConfigureAwait(false);
v.TargetName = rf.Name ?? v.Name;
}
originalId = rf?.Id;
File.Delete(Path.Combine(Repository.GitDirectory, v.TargetName));
// If failed here, we need to cleanup packed references!!
break;
default:
continue;
}
logRefUpdates ??= await Repository.Configuration.GetBoolAsync("core", "logallrefupdates").ConfigureAwait(false) ?? false;
if (logRefUpdates == true &&
(GitReference.AllUpper(v.Name) || v.Name.StartsWith("refs/heads/", StringComparison.OrdinalIgnoreCase) ||
v.Name.StartsWith("refs/remotes/", StringComparison.OrdinalIgnoreCase) || v.Name.StartsWith("refs/notes/", StringComparison.OrdinalIgnoreCase)))
{
var log = new GitReferenceLogRecord {
Original = originalId ?? Zero, Target = v.Id ?? Zero, Signature = signature, Reason = Reason
};
await AppendLog(v.Name, log).ConfigureAwait(false);
if (rf is not null && rf.Name != v.Name)
{
await AppendLog(rf.Name !, log).ConfigureAwait(false);
}
}
}
if (hookData is not null)
{
var hd = hookData;
hookData = null;
// Ignore errors
await Repository.RunHookErrAsync("run", new[] { "committed" }, stdinText : hd, expectedResults : Array.Empty <int>()).ConfigureAwait(false);
}
}
}
catch when(hookData is not null)
{
// Ignore errors
await Repository.RunHookErrAsync("run", new[] { "abort" }, stdinText : hookData, expectedResults : Array.Empty <int>()).ConfigureAwait(false);
throw;
}
finally
{
unlock?.Invoke();
}
}
