c# - 在 LibGit2Sharp 中找出提交所属的分支？

Question

我在 LibGit2Sharp 中循环提交:

Repository repo = new Repository("Z:/www/gg");

foreach (LibGit2Sharp.Commit commit in repo.Commits)
{
    ...
}

我可以检索 Author 和 Message 等属性，但我看不到它属于哪个分支？理想情况下，我希望有一个指向分支对象的指针，但在这种情况下，即使是名称也可以。

这是调试器显示的内容:

这就是我要找的:

TortoiseGit 显示最相关分支名称的行为:

示例存储库:https://docs.google.com/open?id=0B-3-X85VysdNcmZIaGVTSDZSenVGbTJxYlI2SUlsZw

Answer 1

目前没有内置的方式来模仿git branch --contains <commit> .

但是，您可以通过显式遍历每个分支并将每个 pop 的提交与搜索到的提交进行比较来解决此限制。

下面的测试证明了这一点

[Test]
public void CanSearchBranchesContainingASpecificCommit()
{
    using (var repo = new Repository(StandardTestRepoPath))
    {
        const string commitSha = "5b5b025afb0b4c913b4c338a42934a3863bf3644";
        IEnumerable<Branch> branches = ListBranchesContaininingCommit(repo, commitSha);

        branches.Count().ShouldEqual(6);
    }
}

private IEnumerable<Branch> ListBranchesContaininingCommit(Repository repo, string commitSha)
{
    foreach (var branch in repo.Branches)
    {
        var commits = repo.Commits.QueryBy(new CommitFilter { Since = branch }).Where(c => c.Sha == commitSha);

        if (!commits.Any())
        {
            continue;
        }

        yield return branch;
    }
}

注意:此代码已针对 the current tip of the development branch 成功测试LibGit2Sharp 的。

更新:

根据评论中的讨论，这里有一点更新，希望能满足您的要求。

下面的代码将返回包含搜索到的提交的所有分支。如果提交恰好是至少一个分支的尖端，则将返回这些分支。

[Test]
public void CanSearchBranchesContainingASpecificCommit()
{
    using (var repo = new Repository(StandardTestRepoPath))
    {
        const string commitSha = "5b5b025afb0b4c913b4c338a42934a3863bf3644";
        IEnumerable<Branch> branches = ListBranchesContaininingCommit(repo, commitSha);

        branches.Count().ShouldEqual(6);

        const string otherCommitSha = "4a202b346bb0fb0db7eff3cffeb3c70babbd2045";
        branches = ListBranchesContaininingCommit(repo, otherCommitSha);

        branches.Count().ShouldEqual(1); // origin/packed-test
    }
}

private IEnumerable<Branch> ListBranchesContaininingCommit(Repository repo, string commitSha)
{
    bool directBranchHasBeenFound = false;
    foreach (var branch in repo.Branches)
    {
        if (branch.Tip.Sha != commitSha)
        {
            continue;
        }

        directBranchHasBeenFound = true;
        yield return branch;
    }

    if (directBranchHasBeenFound)
    {
        yield break;
    }

    foreach (var branch in repo.Branches)
    {
        var commits = repo.Commits.QueryBy(new CommitFilter { Since = branch }).Where(c => c.Sha == commitSha);

        if (!commits.Any())
        {
            continue;
        }

        yield return branch;
    }
}