[PATCH 1/2] dir: warn about trailing spaces in exclude pattern

["Nguyễn Thái Ngọc Duy" <pclouds@gmail.com>]

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 dir.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/dir.c b/dir.c
index b35b633..9edde44 100644
--- a/dir.c
+++ b/dir.c
@@ -491,6 +491,16 @@ void clear_exclude_list(struct exclude_list *el)
 	el->filebuf = NULL;
 }
 
+static void check_trailing_spaces(const char *fname, char *buf)
+{
+	int len = strlen(buf);
+	while (len && buf[len - 1] == ' ')
+		len--;
+	if (buf[len] != '\0')
+		warning(_("%s: trailing spaces in '%s'. Please quote them."),
+			fname, buf);
+}
+
 int add_excludes_from_file_to_list(const char *fname,
 				   const char *base,
 				   int baselen,
@@ -542,6 +552,7 @@ int add_excludes_from_file_to_list(const char *fname,
 		if (buf[i] == '\n') {
 			if (entry != buf + i && entry[0] != '#') {
 				buf[i - (i && buf[i-1] == '\r')] = 0;
+				check_trailing_spaces(fname, entry);
 				add_exclude(entry, base, baselen, el, lineno);
 			}
 			lineno++;
-- 
1.8.5.2.240.g8478abd