On Wed, Apr 23, 2014 at 02:42:38PM -0500, Felipe Contreras wrote:

> It is what the clients of this library expect.

Is it? Passing GIT_DIR to sub-invocations of git will change how they
determine the repo and working tree. Your patch seems to cause failures
all over the test suite.

Without looking too hard, I'd guess the problems are one of:

  1. Setting GIT_DIR fixes the repo directory for all sub-invocations. A
     script that does "cd some-other-repo.git && git ...". You'd need to
     teach calling scripts to unset GIT_DIR when trying to move to
     another repo.

  2. If GIT_DIR is set but GIT_WORK_TREE is not, then GIT_WORK_TREE will
     default to ".". It might be sufficient to set GIT_WORK_TREE when
     you are setting GIT_DIR here. But as I said, I didn't look too
     hard, so there might be other complications.

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