NoMemory exception on fetch

[Matt-Rouse]

Been advised by nulltoken to open an issue re: http://stackoverflow.com/questions/22155904/libgit2sharp-nomemory-exception-on-fetch There's a bit more info on the StackOverflow thread but I'll summarise below.

I seem to be having an issue using fetch with a BitBucket repo over HTTPS, the code I'm using is:

this._repo = new Repository(workingDir); Credentials credentials = new Credentials() {Username = this._username, Password = this._password}; Remote remote = this._repo.Network.Remotes["origin"]; FetchOptions fetchOptions = new FetchOptions(); fetchOptions.Credentials = credentials; var branch = @"refs/heads/TestBranch:refs/remotes/origin/TestBranch"; this._repo.Network.Fetch(remote, new string[] { branch }, fetchOptions);

Only the final line it gives the following exception:

An error was raised by libgit2. Category = NoMemory (User).

Out of memory

I've added a public repo (https://bitbucket.org/matthewrouse1/testrepo/overview) or to use with git: htttps: https://bitbucket.org/matthewrouse1/testrepo.git this wasn't the original repo that I used however I have been able to reproduce the problem with.

The reproduction steps are pretty simple: Initialise repo (create bitbucket, do intiial commit etc) From libgit2sharp, try to pull using the above code.

[carlosmn]

What version of libgit2/libgit2sharp are you using? Could you provide us with the stacktrace of the exception?

[Matt-Rouse]

Libgit2sharp: Runtime version: v2.0.50727 Version: 0.16.0.0

Stacktrace: {"An error was raised by libgit2. Category = NoMemory (User).\r\nOut of memory"} at LibGit2Sharp.Core.Ensure.HandleError(Int32 result) at LibGit2Sharp.Core.Ensure.ZeroResult(Int32 result) at LibGit2Sharp.Core.Proxy.git_remote_connect(RemoteSafeHandle remote, GitDirection direction) at LibGit2Sharp.Network.DoFetch(RemoteSafeHandle remoteHandle, FetchOptions options) at LibGit2Sharp.Network.Fetch(Remote remote, IEnumerable`1 refspecs, FetchOptions options) at GitInterface.GitRepo.Pull() in c:\repos\git_tfs\gitTFS\GitInterface\GitRepo.cs:line 114

[carlosmn]

FWIW, I can't reproduce this on the libgit2 side, either on dev or on 65e9dc6 which should be the libgit2 version used by that libgit2sharp version.

[Matt-Rouse]

Could you upload the solution you used please? Just as another confirmation that it's something I'm doing wrong rather than a bug in the code.

Either that or I could upload my example solution for you to take a look over?

[nulltoken]

@steamos

Indeed, we would be very interested if you could share with us a stripped down repro case

[carlosmn]

I did this on the libgit2 side, so there is nothing like a solution. I used the git-fetch example, with and without calling git_remote_set_fetch_refspecs, but from the stacktrace you provided, a no-modifications version would do the same. The exact code you're using that causes the issue would be helpful. Does the issue happen with other hosting providers?

[Matt-Rouse]

Ok so I created another solution and tried to fetch again, in this solution the fetch works... I'll continue to investigate.

[Matt-Rouse]

I have done a bit more testing, it seems that my code works from everywhere except a UnitTest class, I've uploaded an example solution, with the username and password removed, which works fine when running the application normally, however when I run the unit test, it fails, I'm not sure if the error is related.

Solution can be found here: http://www.speedyshare.com/qR982/aRepoTest.zip

[carlosmn]

We were never able to reproduce this issue, and the code has changed so much since then that even if we did, a fix wouldn't make sense.