[PATCH] git diff/diff-index/diff-files: call setup_work_tree()

[Miklos Vajna <vmiklos@frugalware.org>]

This makes it possible to use git diff when we are outside the repo but
--work-tree and --git-dir is used.

Signed-off-by: Miklos Vajna <vmiklos@frugalware.org>
---

On Mon, Aug 25, 2008 at 08:52:11PM +0700, Nguyen Thai Ngoc Duy <pclouds@gmail.com> wrote:
> Because "git diff" did not call setup_work_tree(). The same happens
> for "git diff-index" that someone reported recently. IIRC "git
> diff-files" has the same problem.

Thanks, that was the problem.

 builtin-diff-files.c |    1 +
 builtin-diff-index.c |    1 +
 builtin-diff.c       |    1 +
 3 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/builtin-diff-files.c b/builtin-diff-files.c
index 9bf10bb..4802e00 100644
--- a/builtin-diff-files.c
+++ b/builtin-diff-files.c
@@ -19,6 +19,7 @@ int cmd_diff_files(int argc, const char **argv, const char *prefix)
 	int result;
 	unsigned options = 0;
 
+	setup_work_tree();
 	init_revisions(&rev, prefix);
 	git_config(git_diff_basic_config, NULL); /* no "diff" UI options */
 	rev.abbrev = 0;
diff --git a/builtin-diff-index.c b/builtin-diff-index.c
index 17d851b..b8e0656 100644
--- a/builtin-diff-index.c
+++ b/builtin-diff-index.c
@@ -16,6 +16,7 @@ int cmd_diff_index(int argc, const char **argv, const char *prefix)
 	int i;
 	int result;
 
+	setup_work_tree();
 	init_revisions(&rev, prefix);
 	git_config(git_diff_basic_config, NULL); /* no "diff" UI options */
 	rev.abbrev = 0;
diff --git a/builtin-diff.c b/builtin-diff.c
index 7ffea97..86f9255 100644
--- a/builtin-diff.c
+++ b/builtin-diff.c
@@ -244,6 +244,7 @@ int cmd_diff(int argc, const char **argv, const char *prefix)
 	int nongit;
 	int result = 0;
 
+	setup_work_tree();
 	/*
 	 * We could get N tree-ish in the rev.pending_objects list.
 	 * Also there could be M blobs there, and P pathspecs.
-- 
1.6.0.rc3.17.gc14c8.dirty