Teaching reset the - shorthand involves checking if any file named '-' exists
because it then becomes ambiguous as to whether the user wants to reset the
file '-' or if he wants to reset the working tree to the previous branch.
check_filename() is used to perform this check. A similar ambiguity occurs
when the file @{-1} exits. Therefore, when the files '-' or '@{-1}' exist
then the program dies with a message about the ambiguous argument.
Helped-by: Junio C Hamano <gits...@pobox.com>
Helped-by: Eric Sunshine <sunsh...@sunshineco.com>
Signed-off-by: Sundararajan R <dyou...@gmail.com>
---
Have made the modifications suggest by you, Eric.
Removed the part where the user is told that he can use ./- instead.
builtin/reset.c | 15 ++++++++++++++-
1 file changed, 14 insertions(+), 1 deletion(-)
diff --git a/builtin/reset.c b/builtin/reset.c
index 4c08ddc..88ce0c5 100644
--- a/builtin/reset.c
+++ b/builtin/reset.c
@@ -192,6 +192,7 @@ static void parse_args(struct pathspec *pathspec,
{
const char *rev = "HEAD";
unsigned char unused[20];
+ int file_named_minus = 0;
/*
* Possible arguments are:
*
@@ -205,6 +206,12 @@ static void parse_args(struct pathspec *pathspec,
*/
if (argv[0]) {
+ if (!strcmp(argv[0], "-") && !argv[1]) {
+ if (!check_filename(prefix, "-"))
+ argv[0] = "@{-1}";
+ else
+ file_named_minus = 1;
+ }
if (!strcmp(argv[0], "--")) {
argv++; /* reset to HEAD, possibly with paths */
} else if (argv[1] && !strcmp(argv[1], "--")) {
@@ -226,7 +233,13 @@ static void parse_args(struct pathspec *pathspec,
rev = *argv++;
} else {
/* Otherwise we treat this as a filename */
- verify_filename(prefix, argv[0], 1);
+ if (file_named_minus) {
+ die(_("ambiguous argument '-': both revision
and filename\n"
+ "Use '--' to separate paths from
revisions, like this:\n"
+ "'git <command> [<revision>...] --
[<file>...]'"));
+ }
+ else
+ verify_filename(prefix, argv[0], 1);
}
}
*rev_ret = rev;
--
2.1.0
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