From 9a6728d4d14a08791861a63b7567ee0b50e59f70 Mon Sep 17 00:00:00 2001
From: Jeff King <peff@peff.net>
Date: Thu, 4 Apr 2013 15:03:35 -0400
Subject: [PATCH] rm: do not complain about d/f conflicts during deletion

If we used to have an index entry "d/f", but "d" has been
replaced by a non-directory entry, the user may still want
to run "git rm" to delete the stale index entry. They could
use "git rm --cached" to just touch the index, but "git rm"
should also work: we explicitly try to handle the case that
the file has already been removed from the working tree.

However, because unlinking "d/f" in this case will not yield
ENOENT, but rather ENOTDIR, we do not notice that the file
is already gone. Instead, we report it as an error.

The simple solution is to treat ENOTDIR in this case exactly
like ENOENT; all we want to know is whether the file is
already gone, and if a leading path is no longer a
directory, then by definition the sub-path is gone.

Reported-by: jpinheiro <7jpinheiro@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 builtin/rm.c  |  2 +-
 dir.c         |  2 +-
 t/t3600-rm.sh | 25 +++++++++++++++++++++++++
 3 files changed, 27 insertions(+), 2 deletions(-)

diff --git a/builtin/rm.c b/builtin/rm.c
index dabfcf68906..7b91d52f390 100644
--- a/builtin/rm.c
+++ b/builtin/rm.c
@@ -110,7 +110,7 @@ static int check_local_mod(unsigned char *head, int index_only)
 		ce = active_cache[pos];
 
 		if (lstat(ce->name, &st) < 0) {
-			if (errno != ENOENT)
+			if (errno != ENOENT && errno != ENOTDIR)
 				warning("'%s': %s", ce->name, strerror(errno));
 			/* It already vanished from the working tree */
 			continue;
diff --git a/dir.c b/dir.c
index 57394e452eb..f9e7355c694 100644
--- a/dir.c
+++ b/dir.c
@@ -1603,7 +1603,7 @@ int remove_path(const char *name)
 {
 	char *slash;
 
-	if (unlink(name) && errno != ENOENT)
+	if (unlink(name) && errno != ENOENT && errno != ENOTDIR)
 		return -1;
 
 	slash = strrchr(name, '/');
diff --git a/t/t3600-rm.sh b/t/t3600-rm.sh
index 37bf5f13b07..73772b27908 100755
--- a/t/t3600-rm.sh
+++ b/t/t3600-rm.sh
@@ -622,4 +622,29 @@ test_expect_success 'rm of a populated nested submodule with a nested .git direc
 	rm -rf submod
 '
 
+test_expect_success 'rm of d/f when d has become a non-directory' '
+	rm -rf d &&
+	mkdir d &&
+	>d/f &&
+	git add d &&
+	rm -rf d &&
+	>d &&
+	git rm d/f &&
+	test_must_fail git rev-parse --verify :d/f &&
+	test_path_is_file d
+'
+
+test_expect_success SYMLINKS 'rm of d/f when d has become a dangling symlink' '
+	rm -rf d &&
+	mkdir d &&
+	>d/f &&
+	git add d &&
+	rm -rf d &&
+	ln -s nonexistent d &&
+	git rm d/f &&
+	test_must_fail git rev-parse --verify :d/f &&
+	test -h d &&
+	test_path_is_missing d
+'
+
 test_done