Merge branch 'clean-long-paths'

This addresses #521

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>

Author: dscho

builtin/clean.c

@@ -204,7 +204,8 @@ static int remove_dirs(struct strbuf *path, const char *prefix, int force_flag,
 		strbuf_setlen(path, len);
 		strbuf_addstr(path, e->d_name);
 		if (lstat(path->buf, &st)) {
-			; /* fall thru */
+			warning("Could not stat path '%s': %s",
+				path->buf, strerror(errno));
 		} else if ((!prefix && skip_precious_file(&the_index, path->buf)) ||
 			   (prefix && skip_prefix(path->buf, prefix, &rel_path) &&
 			    skip_precious_file(&the_index, rel_path))) {

t/t7300-clean.sh

@@ -709,4 +709,16 @@ test_expect_success 'git clean -xd still deletes them all' '
 	test_path_is_missing precious/two.precious &&
 	test_path_is_missing precious/sub/also.precious
 '
+
+test_expect_success MINGW 'handle clean & core.longpaths = false nicely' '
+	git config core.longpaths false &&
+	test_when_finished git config --unset core.longpaths &&
+	a50=aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa &&
+	mkdir -p $a50$a50/$a50$a50/$a50$a50 &&
+	touch $a50$a50/test.txt &&
+	touch $a50$a50/$a50$a50/$a50$a50/test.txt &&
+	test_must_fail git clean -xdf 2>.git/err &&
+	grep "too long" .git/err
+'
+
 test_done