[PATCH] git-clean: correct printing relative path

[Dmitry Potapov <dpotapov@gmail.com>]

When the given path contains '..' then git-clean incorrectly printed names
of files. This patch changes cmd_clean to use quote_path() from wt-status.
Also, "failed to remove ..." message used absolutely path, but not it is
corrected to use relative path.

Signed-off-by: Dmitry Potapov <dpotapov@gmail.com>
---
 builtin-clean.c |   31 +++++++++++++------------------
 wt-status.c     |    4 ++--
 wt-status.h     |    2 ++
 3 files changed, 17 insertions(+), 20 deletions(-)

diff --git a/builtin-clean.c b/builtin-clean.c
index 3b220d5..3d75ad6 100644
--- a/builtin-clean.c
+++ b/builtin-clean.c
@@ -34,7 +34,8 @@ int cmd_clean(int argc, const char **argv, const char *prefix)
 	struct dir_struct dir;
 	const char *path, *base;
 	static const char **pathspec;
-	int prefix_offset = 0;
+	struct strbuf buf;
+	const char *qname;
 	char *seen = NULL;
 	struct option options[] = {
 		OPT__QUIET(&quiet),
@@ -56,6 +57,7 @@ int cmd_clean(int argc, const char **argv, const char *prefix)
 
 	argc = parse_options(argc, argv, options, builtin_clean_usage, 0);
 
+	strbuf_init(&buf, 0);
 	memset(&dir, 0, sizeof(dir));
 	if (ignored_only)
 		dir.show_ignored = 1;
@@ -72,8 +74,6 @@ int cmd_clean(int argc, const char **argv, const char *prefix)
 	if (!ignored)
 		setup_standard_excludes(&dir);
 
-	if (prefix)
-		prefix_offset = strlen(prefix);
 	pathspec = get_pathspec(prefix, argv);
 	read_cache();
 
@@ -133,40 +133,35 @@ int cmd_clean(int argc, const char **argv, const char *prefix)
 		}
 
 		if (S_ISDIR(st.st_mode)) {
+			qname = quote_path(directory.buf, -1, &buf, prefix);
 			strbuf_addstr(&directory, ent->name);
 			if (show_only && (remove_directories || matches)) {
-				printf("Would remove %s\n",
-				       directory.buf + prefix_offset);
+				printf("Would remove %s\n", qname);
 			} else if (remove_directories || matches) {
 				if (!quiet)
-					printf("Removing %s\n",
-					       directory.buf + prefix_offset);
+					printf("Removing %s\n", qname);
 				if (remove_dir_recursively(&directory, 0) != 0) {
-					warning("failed to remove '%s'",
-						directory.buf + prefix_offset);
+					warning("failed to remove '%s'", qname);
 					errors++;
 				}
 			} else if (show_only) {
-				printf("Would not remove %s\n",
-				       directory.buf + prefix_offset);
+				printf("Would not remove %s\n", qname);
 			} else {
-				printf("Not removing %s\n",
-				       directory.buf + prefix_offset);
+				printf("Not removing %s\n", qname);
 			}
 			strbuf_reset(&directory);
 		} else {
 			if (pathspec && !matches)
 				continue;
+			qname = quote_path(ent->name, -1, &buf, prefix);
 			if (show_only) {
-				printf("Would remove %s\n",
-				       ent->name + prefix_offset);
+				printf("Would remove %s\n", qname);
 				continue;
 			} else if (!quiet) {
-				printf("Removing %s\n",
-				       ent->name + prefix_offset);
+				printf("Removing %s\n", qname);
 			}
 			if (unlink(ent->name) != 0) {
-				warning("failed to remove '%s'", ent->name);
+				warning("failed to remove '%s'", qname);
 				errors++;
 			}
 		}
diff --git a/wt-status.c b/wt-status.c
index 32d780a..712fe91 100644
--- a/wt-status.c
+++ b/wt-status.c
@@ -82,8 +82,8 @@ static void wt_status_print_trailer(struct wt_status *s)
 	color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
 }
 
-static char *quote_path(const char *in, int len,
-			struct strbuf *out, const char *prefix)
+char *quote_path(const char *in, int len,
+		struct strbuf *out, const char *prefix)
 {
 	if (len < 0)
 		len = strlen(in);
diff --git a/wt-status.h b/wt-status.h
index 02afaa6..4b46dda 100644
--- a/wt-status.h
+++ b/wt-status.h
@@ -32,5 +32,7 @@ int wt_status_use_color;
 int wt_status_relative_paths;
 void wt_status_prepare(struct wt_status *s);
 void wt_status_print(struct wt_status *s);
+char *quote_path(const char *in, int len,
+		struct strbuf *out, const char *prefix);
 
 #endif /* STATUS_H */
-- 
1.5.4