From: Duy Nguyen <pclouds@gmail.com>
Date: Sat, 2 May 2015 02:04:32 +0000 (+0700)
Subject: pathspec: avoid the need of "--" when wildcard is used
X-Git-Tag: v2.5.0-rc0~106^2
X-Git-Url: https://git.lorimer.id.au/gitweb.git/diff_plain/28fcc0b71a6543fe50576efc1ac8fb4e4555b6a6

pathspec: avoid the need of "--" when wildcard is used

When "--" is lacking from the command line and a command can take
both revs and paths, the idea is if an argument can be seen as both
an extended SHA-1 and a path, then "--" is required or git refuses
to continue. It's currently implemented as:

(1) if an argument is rev, then it must not exist in worktree

(2) else, it must exist in worktree

(3) else, "--" is required.

These rules work for literal paths, but when non-literal pathspec is
involved, it almost always requires the user to add "--" because it
fails (2) and (1) is really rarely met (take "*.c" for example, (1)
is met if there is a ref named "*.c").

This patch modifies the rules a bit by considering any valid (*)
wildcard pathspec "exist in worktree". The rules become:

(1) if an arg is a rev, then it must either exist in worktree or
not be a valid wildcard pathspec.

(2) else, it either exists in worktree or is a wildcard pathspec

(3) else, "--" is required.

With the new rules, "--" is not needed most of the time when
wildcard pathspec is involved.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
---

diff --git a/setup.c b/setup.c
index 979b13f0c6..1055b82708 100644
--- a/setup.c
+++ b/setup.c
@@ -140,7 +140,9 @@ int check_filename(const char *prefix, const char *arg)
 		if (arg[2] == '\0') /* ":/" is root dir, always exists */
 			return 1;
 		name = arg + 2;
-	} else if (prefix)
+	} else if (!no_wildcard(arg))
+		return 1;
+	else if (prefix)
 		name = prefix_filename(prefix, strlen(prefix), arg);
 	else
 		name = arg;