How to retrieve the history of a file?

Question

I got another libgit2 issue and will be very grateful for your help.

I\'m trying to retrieve file history, i.e. list of commits where this file was changed. And it s

Answer 1

If using C#, this functionality has been added to the LibGit2Sharp 0.22.0 NuGet Package (Pull Request 963). You can do the following:

var fileHistory = repository.Commits.QueryBy(filePathRelativeToRepository);
foreach (var version in fileHistory)
{
    // Get further details by inspecting version.Commit
}

In my Diff All Files VS Extension (which is open source so you can view the code), I needed to get a file's previous commit so I can see what changes were made to a file in a given commit. This is how I retrieved the file's previous commit:

/// 

/// Gets the previous commit of the file.
/// 
/// The repository.
/// The file path relative to repository.
/// The commit sha to start the search for the previous version from. If null, the latest commit of the file will be returned.
/// 
private static Commit GetPreviousCommitOfFile(Repository repository, string filePathRelativeToRepository, string commitSha = null)
{
    bool versionMatchesGivenVersion = false;
    var fileHistory = repository.Commits.QueryBy(filePathRelativeToRepository);
    foreach (var version in fileHistory)
    {
        // If they want the latest commit or we have found the "previous" commit that they were after, return it.
        if (string.IsNullOrWhiteSpace(commitSha) || versionMatchesGivenVersion)
            return version.Commit;

        // If this commit version matches the version specified, we want to return the next commit in the list, as it will be the previous commit.
        if (version.Commit.Sha.Equals(commitSha))
            versionMatchesGivenVersion = true;
    }

    return null;
}