CODEWITHSUNDEEP
c#gitlibgit2sharp
Jochen Kalmbach
Jochen Kalmbach

Reputation: 3684

GIT: Modifying files and commit with same date/time

It seems that it is not easy possible to commit a file which a different content but with the same date/time.

Thw following situation:

How can I force the commit!?

Here is a repro code with libGit2Sharp:

using System.IO;
using LibGit2Sharp;
using System;
namespace GitWorkingUpdateProblem01
{
  class Program
  {
    static void Main(string[] args)
    {
      const string repoDir = @".\git-Test";
      Repository.Init(repoDir);
      using (var repo = new Repository(repoDir))
      {
        string fileName = Path.Combine(repo.Info.WorkingDirectory, "foo.bar");
        var dt = new DateTime(2015, 01, 01, 00, 00, 00);
        using (var sw = new StreamWriter(fileName, false))
        {
          sw.WriteLine("UNIQUE-TEXT-1234");
        }
        File.SetLastWriteTime(fileName, dt); File.SetCreationTime(fileName, dt);

        repo.Stage(fileName); repo.Commit("1");

        using (var sw = new StreamWriter(fileName, false))
        {
          sw.WriteLine("UNIQUE-TEXT-4321");
        }
        File.SetLastWriteTime(fileName, dt); File.SetCreationTime(fileName, dt);

        repo.Stage(fileName); repo.Commit("2"); // ==> THROWS: No changes; nothing to commit.
      }
    }
  }
}

Upvotes: 3

Views: 350

Answers (1)

Rob
Rob

Reputation: 27357

I could reproduce it even without libgit2sharp (using TortoiseGit & msysgit).

It's a known issue:
https://github.com/msysgit/git/issues/312
https://groups.google.com/forum/#!topic/git-users/Uo9TDppHTSI

I was able to get it to detect changes by running: git read-tree HEAD in the console. If your library allows you to run this (or arbitrary) commands - it may help out as well.

In any case, this is something that deliberately fights against git, so I would advise against manually changing the ModifiedDate if possible.

Upvotes: 2

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