How do I control line endings conversion with LibGit2Sharp?

Question

I am using LibGit2Sharp to access a remote Git repository. The scenario is as follows:

1. Clone the repository from a remote URL using Repository.Clone method.
2. Fetch from the remote repository using Commands.Fetch method.
3. Navigate to a required commit by a tag commit = repo.Tags["myTag"].PeeledTarget as Commit;
4. Get the commit tree tree = commit.Tree
5. Navigate the tree and get a file blob blob = tree["my path"].Target as Blob
6. Get file contents from the blob blob.GetContentStream()

As a result I get the file text with Unix line endings, as it is stored in the repository. But I prefer to have Windows line endings in my local copy.

I need to make Git automatically convert line endings for me, as it does with core.autocrlf config option. How do I do that with LibGit2Sharp?

Answer 1

Check if the LibGit2Sharp.Tests/BlobFixture.cs does prove that core.autocrlf is active:

    [InlineData("false", "hey there\n")]
    [InlineData("input", "hey there\n")]
    [InlineData("true", "hey there\r\n")]
    public void CanGetBlobAsFilteredText(string autocrlf, string expectedText)
    {
        SkipIfNotSupported(autocrlf);

        var path = SandboxBareTestRepo();
        using (var repo = new Repository(path))
        {
            repo.Config.Set("core.autocrlf", autocrlf);

            var blob = repo.Lookup<Blob>("a8233120f6ad708f843d861ce2b7228ec4e3dec6");

            var text = blob.GetContentText(new FilteringOptions("foo.txt"));

            Assert.Equal(expectedText, text);
        }
    }

Note though, as mentioned in libgit2/libgit2sharp issue 1195#:

notes, core.autocrlf is terrible and deprecated and should very much be avoided in favor of a properly configured .gitattributes everywhere.

The OP C-F confirms in the comments:

Apparently I have to check the type of the blob using IsBinary property and use GetContentText or GetContentStream accordingly