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enhance: only store subject in commits.

Browse source 
It has several advantages:

* reduce the memory costed by histories
* higher performance while parsing commits
* no need to calculate subject every time, which is invoked most frequently to render histories
This commit is contained in:
leo 2024-06-08 12:19:48 +08:00
parent 6426da3289
commit 9e45a8a77d
12 changed files with 67 additions and 65 deletions
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19
src/Commands/QueryCommitFullMessage.cs Normal file
View file

@ -0,0 +1,19 @@
namespace SourceGit.Commands
{
public class QueryCommitFullMessage : Command
{
public QueryCommitFullMessage(string repo, string sha)
{
WorkingDirectory = repo;
Context = repo;
Args = $"show --no-show-signature --pretty=format:%B -s {sha}";
}
public string Result()
{
var rs = ReadToEnd();
if (rs.IsSuccess) return rs.StdOut.TrimEnd();
return string.Empty;
}
}
}

27
src/Commands/QueryCommits.cs
View file

@ -7,11 +7,9 @@ namespace SourceGit.Commands
{
public QueryCommits(string repo, string limits, bool needFindHead = true)
{
_endOfBodyToken = $"----- END OF BODY {Guid.NewGuid()} -----";
WorkingDirectory = repo;
Context = repo;
Args = $"log --date-order --no-show-signature --decorate=full --pretty=format:\"%H%n%P%n%D%n%aN±%aE%n%at%n%cN±%cE%n%ct%n%B%n{_endOfBodyToken}\" " + limits;
Args = $"log --date-order --no-show-signature --decorate=full --pretty=format:%H%n%P%n%D%n%aN±%aE%n%at%n%cN±%cE%n%ct%n%s " + limits;
_findFirstMerged = needFindHead;
}
@ -24,7 +22,6 @@ namespace SourceGit.Commands
var nextPartIdx = 0;
var start = 0;
var end = rs.StdOut.IndexOf('\n', start);
var max = rs.StdOut.Length;
while (end > 0)
{
var line = rs.StdOut.Substring(start, end - start);
@ -51,24 +48,17 @@ namespace SourceGit.Commands
break;
case 6:
_current.CommitterTime = ulong.Parse(line);
start = end + 1;
end = rs.StdOut.IndexOf(_endOfBodyToken, start, StringComparison.Ordinal);
if (end > 0)
{
if (end > start)
_current.Body = rs.StdOut.Substring(start, end - start).TrimEnd();
start = end + _endOfBodyToken.Length + 1;
end = start >= max ? -1 : rs.StdOut.IndexOf('\n', start);
}
nextPartIdx = 0;
continue;
break;
case 7:
_current.Subject = line;
break;
default:
break;
}
nextPartIdx++;
if (nextPartIdx == 8) nextPartIdx = 0;
start = end + 1;
end = rs.StdOut.IndexOf('\n', start);
}
@ -157,7 +147,7 @@ namespace SourceGit.Commands
if (l.Type != r.Type)
return (int)l.Type - (int)r.Type;
else
return l.Name.CompareTo(r.Name);
return string.Compare(l.Name, r.Name, StringComparison.Ordinal);
});
if (_current.IsMerged && !_isHeadFounded)
@ -187,7 +177,6 @@ namespace SourceGit.Commands
}
}
private string _endOfBodyToken = string.Empty;
private List<Models.Commit> _commits = new List<Models.Commit>();
private Models.Commit _current = null;
private bool _findFirstMerged = false;

10
src/Commands/QuerySingleCommit.cs
View file

@ -10,7 +10,7 @@ namespace SourceGit.Commands
{
WorkingDirectory = repo;
Context = repo;
Args = $"show --no-show-signature --decorate=full --pretty=format:%H%n%P%n%D%n%aN±%aE%n%at%n%cN±%cE%n%ct%n%B -s {sha}";
Args = $"show --no-show-signature --decorate=full --pretty=format:%H%n%P%n%D%n%aN±%aE%n%at%n%cN±%cE%n%ct%n%s -s {sha}";
}
public Models.Commit Result()
@ -32,11 +32,7 @@ namespace SourceGit.Commands
commit.AuthorTime = ulong.Parse(lines[4]);
commit.Committer = Models.User.FindOrAdd(lines[5]);
commit.CommitterTime = ulong.Parse(lines[6]);
StringBuilder builder = new StringBuilder();
for (int i = 7; i < lines.Length; i++)
builder.AppendLine(lines[i]);
commit.Body = builder.ToString().TrimEnd();
commit.Subject = lines[7];
return commit;
}
@ -105,7 +101,7 @@ namespace SourceGit.Commands
if (l.Type != r.Type)
return (int)l.Type - (int)r.Type;
else
return l.Name.CompareTo(r.Name);
return string.Compare(l.Name, r.Name, StringComparison.Ordinal);
});
return isHeadOfCurrent;