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using System;
using System.IO;
using System.Linq;
using LibGit2Sharp.Handlers;
using LibGit2Sharp.Tests.TestHelpers;
using Xunit;
namespace LibGit2Sharp.Tests
{
public class PushFixture : BaseFixture
{
private void OnPushStatusError(PushStatusError pushStatusErrors)
{
Assert.True(false, string.Format("Failed to update reference '{0}': {1}",
pushStatusErrors.Reference, pushStatusErrors.Message));
}
private void AssertPush(Action<IRepository> push)
{
var scd = BuildSelfCleaningDirectory();
string originalRepoPath = SandboxBareTestRepo();
string clonedRepoPath = Repository.Clone(originalRepoPath, scd.DirectoryPath);
using (var originalRepo = new Repository(originalRepoPath))
using (var clonedRepo = new Repository(clonedRepoPath))
{
Remote remote = clonedRepo.Network.Remotes["origin"];
// Compare before
Assert.Equal(originalRepo.Refs["HEAD"].ResolveToDirectReference().TargetIdentifier,
clonedRepo.Refs["HEAD"].ResolveToDirectReference().TargetIdentifier);
Assert.Equal(
clonedRepo.Network.ListReferences(remote).Single(r => r.CanonicalName == "refs/heads/master"),
clonedRepo.Refs.Head.ResolveToDirectReference());
// Change local state (commit)
const string relativeFilepath = "new_file.txt";
Touch(clonedRepo.Info.WorkingDirectory, relativeFilepath, "__content__");
clonedRepo.Stage(relativeFilepath);
clonedRepo.Commit("__commit_message__", Constants.Signature, Constants.Signature);
// Assert local state has changed
Assert.NotEqual(originalRepo.Refs["HEAD"].ResolveToDirectReference().TargetIdentifier,
clonedRepo.Refs["HEAD"].ResolveToDirectReference().TargetIdentifier);
Assert.NotEqual(
clonedRepo.Network.ListReferences(remote).Single(r => r.CanonicalName == "refs/heads/master"),
clonedRepo.Refs.Head.ResolveToDirectReference());
// Push the change upstream (remote state is supposed to change)
push(clonedRepo);
// Assert that both local and remote repos are in sync
Assert.Equal(originalRepo.Refs["HEAD"].ResolveToDirectReference().TargetIdentifier,
clonedRepo.Refs["HEAD"].ResolveToDirectReference().TargetIdentifier);
Assert.Equal(
clonedRepo.Network.ListReferences(remote).Single(r => r.CanonicalName == "refs/heads/master"),
clonedRepo.Refs.Head.ResolveToDirectReference());
}
}
[Fact]
public void CanPushABranchTrackingAnUpstreamBranch()
{
bool packBuilderCalled = false;
PackBuilderProgressHandler packBuilderCb = (x, y, z) => { packBuilderCalled = true; return true; };
AssertPush(repo => repo.Network.Push(repo.Head));
AssertPush(repo => repo.Network.Push(repo.Branches["master"]));
PushOptions options = new PushOptions()
{
OnPushStatusError = OnPushStatusError,
OnPackBuilderProgress = packBuilderCb,
};
AssertPush(repo => repo.Network.Push(repo.Network.Remotes["origin"], "HEAD", @"refs/heads/master", options));
Assert.True(packBuilderCalled);
}
[Fact]
public void PushingABranchThatDoesNotTrackAnUpstreamBranchThrows()
{
Assert.Throws<LibGit2SharpException>(
() =>
AssertPush(repo =>
{
Branch branch = repo.Branches["master"];
repo.Branches.Update(branch, b => b.TrackedBranch = null);
repo.Network.Push(branch);
}));
}
[Fact]
public void CanForcePush()
{
string remoteRepoPath = InitNewRepository(true);
// Create a new repository
string localRepoPath = InitNewRepository();
using (var localRepo = new Repository(localRepoPath, new RepositoryOptions { Identity = Constants.Identity }))
{
// Add a commit
Commit first = AddCommitToRepo(localRepo);
Remote remote = localRepo.Network.Remotes.Add("origin", remoteRepoPath);
localRepo.Branches.Update(localRepo.Head,
b => b.Remote = remote.Name,
b => b.UpstreamBranch = localRepo.Head.CanonicalName);
// Push this commit
localRepo.Network.Push(localRepo.Head);
AssertRemoteHeadTipEquals(localRepo, first.Sha);
UpdateTheRemoteRepositoryWithANewCommit(remoteRepoPath);
// Add another commit
var oldId = localRepo.Head.Tip.Id;
Commit second = AddCommitToRepo(localRepo);
// Try to fast forward push this new commit
Assert.Throws<NonFastForwardException>(() => localRepo.Network.Push(localRepo.Head));
// Force push the new commit
string pushRefSpec = string.Format("+{0}:{0}", localRepo.Head.CanonicalName);
localRepo.Network.Push(localRepo.Network.Remotes.Single(), pushRefSpec);
AssertRemoteHeadTipEquals(localRepo, second.Sha);
AssertRefLogEntry(localRepo, "refs/remotes/origin/master",
"update by push",
oldId, localRepo.Head.Tip.Id,
Constants.Identity, DateTimeOffset.Now);
}
}
private static void AssertRemoteHeadTipEquals(IRepository localRepo, string sha)
{
var remoteReferences = localRepo.Network.ListReferences(localRepo.Network.Remotes.Single());
DirectReference remoteHead = remoteReferences.Single(r => r.CanonicalName == "HEAD");
Assert.Equal(sha, remoteHead.TargetIdentifier);
}
private void UpdateTheRemoteRepositoryWithANewCommit(string remoteRepoPath)
{
// Perform a fresh clone of the upstream repository
var scd = BuildSelfCleaningDirectory();
string clonedRepoPath = Repository.Clone(remoteRepoPath, scd.DirectoryPath);
using (var clonedRepo = new Repository(clonedRepoPath))
{
// Add a commit
AddCommitToRepo(clonedRepo);
// Push this new commit toward an upstream repository
clonedRepo.Network.Push(clonedRepo.Head);
}
}
private Commit AddCommitToRepo(IRepository repository)
{
string random = Path.GetRandomFileName();
string filename = random + ".txt";
Touch(repository.Info.WorkingDirectory, filename, random);
repository.Stage(filename);
return repository.Commit("New commit", Constants.Signature, Constants.Signature);
}
}
}
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