On Mon, Dec 07, 2009 at 11:15:47AM +0100, Robin Rosenberg wrote:
> $ git config core.worktree $(cd ../r1;pwd)
> $ git status
> # On branch master
> # Changed but not updated:
> # (use "git add/rm <file>..." to update what will be committed)
> # (use "git checkout -- <file>..." to discard changes in working directory)
> #
> # deleted: f
> #
> no changes added to commit (use "git add" and/or "git commit -a")
>
> => Seems the config is actually honored even though GIT_DIR is not set.
>
> Bisect tells me 4f38f6b5bafb1f7f85c7b54d0bb0a0e977cd947c broke it. My main point is that I am
You should have CCed me.
> implementing this in JGit so I want the same behaviour. Question: Should we try to fix this
> in git so it matches the documentation or fix the documentation to match behaviour.
>
> The breakage appeared over a year ago and no one has complained.
This is, I think, due to the shared use of git_work_tree_cfg. When
setup_git_directory_gently() comes close to the end, work_tree has
been detected and set. Then check_repository_format_gently() is
called to make sure the repository is valid. Among the checks are
core.worktree check, which overrides the previously-set git_work_tree_cfg.
This might be the fix, or a start of new breakages. I'll need to look
at this again and make a proper patch message with tests if it's
really correct.
diff --git a/setup.c b/setup.c
index f67250b..1385edb 100644
--- a/setup.c
+++ b/setup.c
@@ -280,6 +280,18 @@ const char *read_gitfile_gently(const char *path)
return path;
}
+static int check_repository_work_tree(const char *var, const char *value, void *cb)
+{
+ if (strcmp(var, "core.worktree") == 0) {
+ if (!value)
+ return config_error_nonbool(var);
+ free(git_work_tree_cfg);
+ git_work_tree_cfg = xstrdup(value);
+ inside_work_tree = -1;
+ }
+ return 0;
+}
+
/*
* We cannot decide in this function whether we are in the work tree or
* not, since the config can only be read _after_ this function was called.
@@ -317,6 +329,7 @@ const char *setup_git_directory_gently(int *nongit_ok)
if (!work_tree_env) {
retval = set_work_tree(gitdirenv);
/* config may override worktree */
+ git_config(check_repository_work_tree, NULL);
if (check_repository_format_gently(nongit_ok))
return NULL;
return retval;
@@ -394,6 +407,7 @@ const char *setup_git_directory_gently(int *nongit_ok)
die_errno("Cannot change to '%s/..'", cwd);
}
+ git_config(check_repository_work_tree, NULL);
inside_git_dir = 0;
if (!work_tree_env)
inside_work_tree = 1;
@@ -471,12 +485,6 @@ int check_repository_format_version(const char *var, const char *value, void *cb
is_bare_repository_cfg = git_config_bool(var, value);
if (is_bare_repository_cfg == 1)
inside_work_tree = -1;
- } else if (strcmp(var, "core.worktree") == 0) {
- if (!value)
- return config_error_nonbool(var);
- free(git_work_tree_cfg);
- git_work_tree_cfg = xstrdup(value);
- inside_work_tree = -1;
}
return 0;
}
--
Duy
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