[PATCH] git-clean: handle errors if removing files fails

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Consider the following case:

$ sudo mkdir foo
$ sudo touch foo/bar

This is the old output:

$ git clean -f -d
Removing foo/

No error message.

This is the new output:

$ ~/git/git/git clean -f -d
Removing foo/
fatal: failed to remove 'foo/'

Signed-off-by: Miklos Vajna <vmiklos@xxxxxxxxxxxxxx>
---
 builtin-clean.c  |   14 ++++++++------
 t/t7300-clean.sh |    9 +++++++++
 2 files changed, 17 insertions(+), 6 deletions(-)

diff --git a/builtin-clean.c b/builtin-clean.c
index eb853a3..c8753a5 100644
--- a/builtin-clean.c
+++ b/builtin-clean.c
@@ -137,12 +137,13 @@ int cmd_clean(int argc, const char **argv, const char *prefix)
 			if (show_only && (remove_directories || matches)) {
 				printf("Would remove %s\n",
 				       directory.buf + prefix_offset);
-			} else if (quiet && (remove_directories || matches)) {
-				remove_dir_recursively(&directory, 0);
 			} else if (remove_directories || matches) {
-				printf("Removing %s\n",
-				       directory.buf + prefix_offset);
-				remove_dir_recursively(&directory, 0);
+				if (!quiet)
+					printf("Removing %s\n",
+					       directory.buf + prefix_offset);
+				if (remove_dir_recursively(&directory, 0) != 0)
+					die("failed to remove '%s'",
+						directory.buf + prefix_offset);
 			} else if (show_only) {
 				printf("Would not remove %s\n",
 				       directory.buf + prefix_offset);
@@ -162,7 +163,8 @@ int cmd_clean(int argc, const char **argv, const char *prefix)
 				printf("Removing %s\n",
 				       ent->name + prefix_offset);
 			}
-			unlink(ent->name);
+			if (unlink(ent->name) != 0)
+				die("failed to remove '%s'", ent->name);
 		}
 	}
 	free(seen);
diff --git a/t/t7300-clean.sh b/t/t7300-clean.sh
index dfd1188..bd0a814 100755
--- a/t/t7300-clean.sh
+++ b/t/t7300-clean.sh
@@ -316,4 +316,13 @@ test_expect_success 'core.excludesfile' '
 
 '
 
+test_expect_success 'removal failure' '
+
+	mkdir foo &&
+	touch foo/bar &&
+	chmod 0 foo &&
+	! git clean -f -d
+
+'
+
 test_done
-- 
1.5.4.1

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