color: Only highlight the trailing slash on ENOTDIR

Author: tavianator

src/color.c

@@ -982,8 +982,10 @@ static ssize_t first_broken_offset(const char *path, const struct BFTW *ftwbuf,
 		while (ret && at_path[len - 1] == '/') {
 			--len, --ret;
 		}
-		while (ret && at_path[len - 1] != '/') {
-			--len, --ret;
+		if (errno != ENOTDIR) {
+			while (ret && at_path[len - 1] != '/') {
+				--len, --ret;
+			}
 		}
 
 		dstresize(&at_path, len);

tests/bfs/color_ls.out

@@ -2,11 +2,11 @@
 scratch/foo/bar
 /__bfs__/nowhere
 /__bfs__/nowhere
-foo/bar/baz/qux
-foo/bar/baz/qux
 foo/bar/nowhere
 foo/bar/nowhere
 foo/bar/nowhere/nothing
 foo/bar/nowhere/nothing
 foo/bar/baz
 foo/bar/baz
+foo/bar/baz//qux
+foo/bar/baz//qux

tests/bfs/color_ls.sh

@@ -3,13 +3,13 @@ clean_scratch
 ln -s foo/bar/baz scratch/link
 ln -s foo/bar/nowhere scratch/broken
 ln -s foo/bar/nowhere/nothing scratch/nested
-ln -s foo/bar/baz/qux scratch/notdir
+ln -s foo/bar/baz//qux scratch/notdir
 ln -s scratch/foo/bar scratch/relative
 mkdir scratch/__bfs__
 ln -s /__bfs__/nowhere scratch/absolute
 
-LS_COLORS="or=01;31:" invoke_bfs scratch/{,link,broken,nested,notdir,relative,absolute} -color -type l -ls \
+export LS_COLORS="or=01;31:"
+invoke_bfs scratch/{,link,broken,nested,notdir,relative,absolute} -color -type l -ls \
     | sed 's/.* -> //' \
     | sort >"$OUT"
-
 diff_output