public async ValueTask <GitSignatureRecord> ReadTaggerAsync()
{
if (_author is null)
{
if (_tagName is null)
{
await ReadTagNameAsync().ConfigureAwait(false);
}
var(bb, eol) = await Inner.ReadUntilEolFullAsync(AcceptedEols, requested : MaxHeader).ConfigureAwait(false);
if (bb.StartsWithASCII("tagger ") &&
GitSignatureRecord.TryReadFromBucket(bb.Slice("tagger ".Length, eol), out var author))
{
_author = author;
}
else if (bb.IsEmpty(eol))
{
_author = new GitSignatureRecord()
{
When = new(1970, 1, 1, 0, 0, 0, TimeSpan.Zero)
};
_readHeaders = true;
// Special case. Bad commit in linux repository doesn't have a tagger
}
else
{
throw new GitBucketException($"Expected 'tagger' in tag in '{Inner.Name}'");
}
}
return(_author);
}
public void CheckSignatureLines()
{
{
GitSignatureRecord sig = new GitSignatureRecord {
Name = "User", Email = "u@m", When = new DateTime(2002, 12, 5, 5, 6, 7, DateTimeKind.Utc)
};
Assert.AreEqual("User <u@m> 1039064767 +0000", sig.ToString());
Assert.IsTrue(GitSignatureRecord.TryReadFromBucket(Encoding.UTF8.GetBytes(sig.ToString()), out var utcStartRb), "Can read record");
Assert.AreEqual(sig, utcStartRb);
}
{
GitSignatureRecord sig = new GitSignatureRecord {
Name = "EU User", Email = "nl@eu", When = new DateTimeOffset(2003, 05, 27, 3, 3, 3, new TimeSpan(2, 0, 0))
};
Assert.AreEqual("EU User <nl@eu> 1053997383 +0200", sig.ToString());
Assert.IsTrue(GitSignatureRecord.TryReadFromBucket(Encoding.UTF8.GetBytes(sig.ToString()), out var cestStartRb), "Can read record");
Assert.AreEqual(sig, cestStartRb);
}
{
GitSignatureRecord sig = new GitSignatureRecord {
Name = "India User ", Email = "india@in", When = new DateTimeOffset(2004, 04, 02, 3, 3, 3, new TimeSpan(5, 30, 0))
};
Assert.AreEqual("India User <india@in> 1080855183 +0530", sig.ToString());
Assert.IsTrue(GitSignatureRecord.TryReadFromBucket(Encoding.UTF8.GetBytes(sig.ToString()), out var cestStartRb), "Can read record");
Assert.AreEqual(sig, cestStartRb);
}
{
GitSignatureRecord sig = new GitSignatureRecord {
Name = "NegIndia User ", Email = "net-india@ni", When = new DateTimeOffset(2004, 04, 02, 3, 3, 3, -new TimeSpan(5, 30, 0))
};
Assert.AreEqual("NegIndia User <net-india@ni> 1080894783 -0530", sig.ToString());
Assert.IsTrue(GitSignatureRecord.TryReadFromBucket(Encoding.UTF8.GetBytes(sig.ToString()), out var cestStartRb), "Can read record");
Assert.AreEqual(sig, cestStartRb);
}
{
GitSignatureRecord sig = new GitSignatureRecord {
Name = " US User ", Email = " us@white space ", When = new DateTimeOffset(2003, 05, 27, 3, 3, 3, new TimeSpan(-6, 0, 0))
};
Assert.AreEqual(" US User < us@white space > 1054026183 -0600", sig.ToString());
Assert.IsTrue(GitSignatureRecord.TryReadFromBucket(Encoding.UTF8.GetBytes(sig.ToString()), out var cestStartRb), "Can read record");
Assert.AreEqual(sig, cestStartRb);
}
}
public async ValueTask <GitId?> ReadFirstParentIdAsync()
{
if (_parents is not null)
{
return(_parents.First());
}
else if (_treeId is null)
{
await ReadTreeIdAsync().ConfigureAwait(false);
}
// Typically every commit has a parent, so optimize for that case
var(bb, eol) = await Inner.ReadUntilEolFullAsync(AcceptedEols, requested : ParentLineReadLength).ConfigureAwait(false);
if (bb.IsEof || eol == BucketEol.None || !bb.StartsWithASCII("parent "))
{
if (bb.IsEof || !bb.StartsWithASCII("author "))
{
throw new GitBucketException($"Expected 'parent' or 'author', but got neither in commit {Name} Bucket");
}
_parents = Array.Empty <GitId>();
// We accidentally read the first part of the author line. Let's keep things clean
if (eol == BucketEol.None)
{
var authorBucket = (bb.Slice("author ".Length).ToArray().AsBucket() + Inner);
(bb, eol) = await authorBucket.ReadUntilEolFullAsync(AcceptedEols, requested : MaxHeader).ConfigureAwait(false);
}
_author = GitSignatureRecord.TryReadFromBucket(bb.Slice(eol), out var author) ? author : throw new GitBucketException($"Invalid author line in {Name} Bucket");
return(null);
}
else if (GitId.TryParse(bb.Slice("parent ".Length, eol), out var id))
{
_parents = new List <GitId>()
{
id
};
return(id);
}
else
{
throw new GitBucketException($"Invalid parent line in '{Inner.Name}");
}
}
public async ValueTask <GitSignatureRecord> ReadCommitterAsync()
{
if (_committer is not null)
{
return(_committer);
}
else if (_author is null)
{
await ReadAuthorAsync().ConfigureAwait(false);
}
var(bb, eol) = await Inner.ReadUntilEolFullAsync(AcceptedEols, requested : MaxHeader).ConfigureAwait(false);
if (bb.IsEof ||
eol == BucketEol.None ||
!bb.StartsWithASCII("committer ") ||
!GitSignatureRecord.TryReadFromBucket(bb.Slice("committer ".Length, eol), out var cm))
{
throw new GitBucketException($"Unable to read committer header from '{Inner.Name}'");
}
return(_committer = cm);
}
public async ValueTask <GitSignatureRecord> ReadAuthorAsync()
{
if (_author is null)
{
if (_parents is null || _parents is List <GitId> )
{
await ReadAllParentIdsAsync().ConfigureAwait(false);
}
var(bb, eol) = await Inner.ReadUntilEolFullAsync(AcceptedEols, requested : MaxHeader).ConfigureAwait(false);
if (bb.StartsWithASCII("author ") &&
GitSignatureRecord.TryReadFromBucket(bb.Slice("author ".Length, eol), out var author))
{
_author = author;
}
else
{
throw new GitBucketException($"Expected 'author' in commit '{Inner.Name}'");
}
}
return(_author ?? throw new GitBucketException($"Unable to read author header from '{Inner.Name}'"));
}
public async ValueTask <IReadOnlyCollection <GitId> > ReadAllParentIdsAsync()
{
List <GitId> parents;
if (_parents is not null)
{
if (_parents is not List <GitId> lst)
{
return(_parents); // Already done
}
parents = lst; // Still collecting after ReadFirstParentIdAsync()
}
else if (_treeId is null)
{
await ReadTreeIdAsync().ConfigureAwait(false);
parents = new();
}
else
{
parents = new();
}
while (true)
{
var(bb, eol) = await Inner.ReadUntilEolFullAsync(AcceptedEols, requested : MaxHeader).ConfigureAwait(false);
if (bb.IsEof)
{
return(_parents = parents.Count > 0 ? parents.AsReadOnly() : Array.Empty <GitId>());
}
else if (bb.StartsWithASCII("parent ") &&
GitId.TryParse(bb.Slice("parent ".Length, eol), out var id))
{
parents.Add(id);
// Stop scanning if we don't have more parents
bb = Inner.Peek();
if (!bb.IsEmpty && bb[0] != 'p')
{
return(_parents = parents.AsReadOnly());
}
continue;
}
else if (bb.StartsWithASCII("author "))
{
// Auch. We overread.
if (eol == BucketEol.None)
{
var authorBucket = (bb.Slice("author ".Length).ToArray().AsBucket() + Inner);
(bb, eol) = await authorBucket.ReadUntilEolFullAsync(AcceptedEols, requested : MaxHeader).ConfigureAwait(false);
}
_author = GitSignatureRecord.TryReadFromBucket(bb.Slice(eol), out var author) ? author : throw new GitBucketException($"Invalid author line in {Name} Bucket");
return(_parents = parents.AsReadOnly());
}
else
{
throw new GitBucketException($"Expected 'parent' or 'author', but got neither in commit '{Inner.Name}'");
}
}
}
internal GitSignature(GitSignatureRecord signature)
{
_name = signature.Name;
_email = signature.Email;
_when = signature.When;
}
