git-clean: handle errors if removing files fails

git-clean simply ignored errors if removing a file or directory failed. This
patch makes it raise a warning and the exit code also greater than zero if
there are remaining files.

Signed-off-by: Miklos Vajna <vmiklos@frugalware.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin-clean.c b/builtin-clean.c
index eb853a37cf993a875f2acd1992ee5191783740a1..3b220d5060b90318e2d2331d3cd0f5b6a70164ee 100644 (file)
--- a/builtin-clean.c
+++ b/builtin-clean.c
@@ -29,7 +29,7 @@ int cmd_clean(int argc, const char **argv, const char *prefix)
 {
        int i;
        int show_only = 0, remove_directories = 0, quiet = 0, ignored = 0;
-       int ignored_only = 0, baselen = 0, config_set = 0;
+       int ignored_only = 0, baselen = 0, config_set = 0, errors = 0;
        struct strbuf directory;
        struct dir_struct dir;
        const char *path, *base;
@@ -137,12 +137,15 @@ 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) {
+                                       warning("failed to remove '%s'",
+                                               directory.buf + prefix_offset);
+                                       errors++;
+                               }
                        } else if (show_only) {
                                printf("Would not remove %s\n",
                                       directory.buf + prefix_offset);
@@ -162,11 +165,14 @@ 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) {
+                               warning("failed to remove '%s'", ent->name);
+                               errors++;
+                       }
                }
        }
        free(seen);
 
        strbuf_release(&directory);
-       return 0;
+       return (errors != 0);
 }

diff --git a/t/t7300-clean.sh b/t/t7300-clean.sh
index dfd118878fd37c096ccd426aa01fa2ac36581367..38403643a6271ae4e6bb5a9c7d768ae4b50df34d 100755 (executable)
--- a/t/t7300-clean.sh
+++ b/t/t7300-clean.sh
@@ -316,4 +316,14 @@ test_expect_success 'core.excludesfile' '
 
 '
 
+test_expect_success 'removal failure' '
+
+       mkdir foo &&
+       touch foo/bar &&
+       chmod 0 foo &&
+       ! git clean -f -d
+
+'
+chmod 755 foo
+
 test_done