wildmatch: make wildmatch's return value compatible with fnmatch

diff --git a/builtin/rev-parse.c b/builtin/rev-parse.c
index 733f626f6c3e4ef54d54df923230f7ae4fbb2d7d..47b4e7adb956517c22edc580892d63a99d9f219a 100644 (file)
--- a/builtin/rev-parse.c
+++ b/builtin/rev-parse.c
@@ -224,6 +224,7 @@ static int try_difference(const char *arg)
        const char *next;
        const char *this;
        int symmetric;
+       static const char head_by_default[] = "HEAD";
 
        if (!(dotdot = strstr(arg, "..")))
                return 0;
@@ -235,9 +236,20 @@ static int try_difference(const char *arg)
        next += symmetric;
 
        if (!*next)
-               next = "HEAD";
+               next = head_by_default;
        if (dotdot == arg)
-               this = "HEAD";
+               this = head_by_default;
+
+       if (this == head_by_default && next == head_by_default &&
+           !symmetric) {
+               /*
+                * Just ".."?  That is not a range but the
+                * pathspec for the parent directory.
+                */
+               *dotdot = '.';
+               return 0;
+       }
+
        if (!get_sha1(this, sha1) && !get_sha1(next, end)) {
                show_rev(NORMAL, end, next);
                show_rev(symmetric ? NORMAL : REVERSED, sha1, this);
@@ -486,7 +498,7 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix)
 
                if (as_is) {
                        if (show_file(arg) && as_is < 2)
-                               verify_filename(prefix, arg);
+                               verify_filename(prefix, arg, 0);
                        continue;
                }
                if (!strcmp(arg,"-n")) {
@@ -734,7 +746,7 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix)
                as_is = 1;
                if (!show_file(arg))
                        continue;
-               verify_filename(prefix, arg);
+               verify_filename(prefix, arg, 1);
        }
        if (verify) {
                if (revs_count == 1) {