From: Karl Hasselström Date: Mon, 14 Apr 2008 23:18:53 +0000 (+0200) Subject: Don't both change directory and set GIT_WORK_TREE X-Git-Tag: v0.15-rc1~250 X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~mdw/git/stgit/commitdiff_plain/f83d4b2ae9379d8c443036fcb56451f9396f63f4 Don't both change directory and set GIT_WORK_TREE We used to both change the working directory and set GIT_WORK_TREE when calling git merge-recursive. This works with older versions of git (up to and including 1.5.4.x, or thereabouts) because merge-recursive ignores GIT_WORK_TREE. It stopped doing that sometime just before 1.5.5, which broke StGit. (Given both GIT_WORK_TREE=".." and cwd "..", it assumed the work tree was at "../..", instead of just ".." like we intended. This made t2800 fail.) Just dropping the cd would solve the problem for new gits, but would break StGit with older gits. But it works in both cases if we keep the cd, and unconditionally set GIT_WORK_TREE=".". So this patch does precisely that. (git read-tree -u -m is also called from IndexAndWorktree, and it seems to always ignore GIT_WORK_TREE just like merge-recursive used to do. The patch fixes all calls made from IndexAndWorktree, so we're good if read-tree starts heeding GIT_WORK_TREE in the future.) Signed-off-by: Karl Hasselström --- diff --git a/stgit/lib/git.py b/stgit/lib/git.py index 35b9bbf..c5b048f 100644 --- a/stgit/lib/git.py +++ b/stgit/lib/git.py @@ -298,6 +298,10 @@ class RunWithEnv(object): def run(self, args, env = {}): return run.Run(*args).env(utils.add_dict(self.env, env)) +class RunWithEnvCwd(RunWithEnv): + def run(self, args, env = {}): + return RunWithEnv.run(self, args, env).cwd(self.cwd) + class Repository(RunWithEnv): def __init__(self, directory): self.__git_dir = directory @@ -490,19 +494,20 @@ class Index(RunWithEnv): class Worktree(object): def __init__(self, directory): self.__directory = directory - env = property(lambda self: { 'GIT_WORK_TREE': self.__directory }) + env = property(lambda self: { 'GIT_WORK_TREE': '.' }) directory = property(lambda self: self.__directory) class CheckoutException(exception.StgException): pass -class IndexAndWorktree(RunWithEnv): +class IndexAndWorktree(RunWithEnvCwd): def __init__(self, index, worktree): self.__index = index self.__worktree = worktree index = property(lambda self: self.__index) env = property(lambda self: utils.add_dict(self.__index.env, self.__worktree.env)) + cwd = property(lambda self: self.__worktree.directory) def checkout(self, old_tree, new_tree): # TODO: Optionally do a 3-way instead of doing nothing when we # have a problem. Or maybe we should stash changes in a patch? @@ -512,7 +517,7 @@ class IndexAndWorktree(RunWithEnv): self.run(['git', 'read-tree', '-u', '-m', '--exclude-per-directory=.gitignore', old_tree.sha1, new_tree.sha1] - ).cwd(self.__worktree.directory).discard_output() + ).discard_output() except run.RunException: raise CheckoutException('Index/workdir dirty') def merge(self, base, ours, theirs): @@ -524,8 +529,7 @@ class IndexAndWorktree(RunWithEnv): theirs.sha1], env = { 'GITHEAD_%s' % base.sha1: 'ancestor', 'GITHEAD_%s' % ours.sha1: 'current', - 'GITHEAD_%s' % theirs.sha1: 'patched'} - ).cwd(self.__worktree.directory) + 'GITHEAD_%s' % theirs.sha1: 'patched'}) r.discard_output() except run.RunException, e: if r.exitcode == 1: