diff: restrict pathspec limitations to diff b/f case only
builtin_diff_b_f() needs a path, not pathspec. Other modes in diff
can deal with pathspec just fine. But because of the current
GUARD_PATHSPEC() location, other modes also reject :(glob) and
:(icase).
Move GUARD_PATHSPEC(), and the "path" assignment statement, which is
the reason of this GUARD_PATHSPEC(), inside builtin_diff_b_f().
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/builtin/diff.c b/builtin/diff.c
index 2fb8c5d..2af2542 100644
--- a/builtin/diff.c
+++ b/builtin/diff.c
@@ -64,15 +64,18 @@
static int builtin_diff_b_f(struct rev_info *revs,
int argc, const char **argv,
- struct blobinfo *blob,
- const char *path)
+ struct blobinfo *blob)
{
/* Blob vs file in the working tree*/
struct stat st;
+ const char *path;
if (argc > 1)
usage(builtin_diff_usage);
+ GUARD_PATHSPEC(&revs->prune_data, PATHSPEC_FROMTOP | PATHSPEC_LITERAL);
+ path = revs->prune_data.items[0].match;
+
if (lstat(path, &st))
die_errno(_("failed to stat '%s'"), path);
if (!(S_ISREG(st.st_mode) || S_ISLNK(st.st_mode)))
@@ -255,7 +258,6 @@
struct rev_info rev;
struct object_array ent = OBJECT_ARRAY_INIT;
int blobs = 0, paths = 0;
- const char *path = NULL;
struct blobinfo blob[2];
int nongit;
int result = 0;
@@ -366,13 +368,8 @@
die(_("unhandled object '%s' given."), name);
}
}
- if (rev.prune_data.nr) {
- /* builtin_diff_b_f() */
- GUARD_PATHSPEC(&rev.prune_data, PATHSPEC_FROMTOP | PATHSPEC_LITERAL);
- if (!path)
- path = rev.prune_data.items[0].match;
+ if (rev.prune_data.nr)
paths += rev.prune_data.nr;
- }
/*
* Now, do the arguments look reasonable?
@@ -385,7 +382,7 @@
case 1:
if (paths != 1)
usage(builtin_diff_usage);
- result = builtin_diff_b_f(&rev, argc, argv, blob, path);
+ result = builtin_diff_b_f(&rev, argc, argv, blob);
break;
case 2:
if (paths)
