[PATCH 3/3] Don't always require working tree for git-rm

[Mike Hommey <mh@glandium.org>]

This allows to do git rm --cached -r directory, instead of
git ls-files -z directory | git update-index --remove -z --stdin.
This can be particularly useful for git-filter-branch users.

Signed-off-by: Mike Hommey <mh@glandium.org>
---

This replaces the patch from
http://article.gmane.org/gmane.comp.version-control.git/63227

 builtin-rm.c |    3 +++
 git.c        |    2 +-
 2 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/builtin-rm.c b/builtin-rm.c
index bca2bd9..a3d25e6 100644
--- a/builtin-rm.c
+++ b/builtin-rm.c
@@ -155,6 +155,9 @@ int cmd_rm(int argc, const char **argv, const char *prefix)
 	if (!argc)
 		usage_with_options(builtin_rm_usage, builtin_rm_options);
 
+	if (!index_only)
+		setup_work_tree();
+
 	pathspec = get_pathspec(prefix, argv);
 	seen = NULL;
 	for (i = 0; pathspec[i] ; i++)
diff --git a/git.c b/git.c
index eb31c93..4a250f7 100644
--- a/git.c
+++ b/git.c
@@ -340,7 +340,7 @@ static void handle_internal_command(int argc, const char **argv)
 		{ "rev-list", cmd_rev_list, RUN_SETUP },
 		{ "rev-parse", cmd_rev_parse, RUN_SETUP },
 		{ "revert", cmd_revert, RUN_SETUP | NEED_WORK_TREE },
-		{ "rm", cmd_rm, RUN_SETUP | NEED_WORK_TREE },
+		{ "rm", cmd_rm, RUN_SETUP },
 		{ "runstatus", cmd_runstatus, RUN_SETUP | NEED_WORK_TREE },
 		{ "shortlog", cmd_shortlog, RUN_SETUP | USE_PAGER },
 		{ "show-branch", cmd_show_branch, RUN_SETUP },
-- 
1.5.3.5