[PATCH 12/16] narrow spec: put '+' before a spec will change semantic of '*'

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

Previously '*' in narrow spec means 'match everything, even slashes'.
With this change, '*' is now 'match everything except slashes' so it is
more like shell wildcard one. Putting '+' before a spec will make
'*' as powerful as before.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 unpack-trees.c |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)

diff --git a/unpack-trees.c b/unpack-trees.c
index 968cc98..3782de6 100644
--- a/unpack-trees.c
+++ b/unpack-trees.c
@@ -812,10 +812,15 @@ int match_narrow_spec(const char *spec_, const char *path, const char *prefix)
 
 	while (!match) {
 		char *next_spec = strchr(cur_spec, ':');
+		int flag = 0;
 		if (next_spec)
 			*next_spec = '\0';
 
-		if (!fnmatch(cur_spec, path+prefix_len, 0))
+		if (*cur_spec == '+')
+			cur_spec++;
+		else
+			flag = FNM_PATHNAME;
+		if (!fnmatch(cur_spec, path+prefix_len, flag))
 			match = 1;
 
 		if (!next_spec)
-- 
1.6.0.96.g2fad1.dirty