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ls-remote: the --exit-code option reports "no matching refs"

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The "git ls-remote" uses its exit status to indicate if it successfully
talked with the remote repository. A new option "--exit-code" makes the
command exit with status "2" when there is no refs to be listed, even when
the command successfully talked with the remote repository.

This way, the caller can tell if we failed to contact the remote, or the
remote did not have what we wanted to see. Of course, you can inspect the
output from the command, which has been and will continue to be a valid
way to check the same thing.

Signed-off-by: Michael Schubert <mschub@elegosoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Michael Schubert
2011-05-18 22:06:00 +02:00
committed by Junio C Hamano
parent b602ed7dea
commit a87247731e
3 changed files with 40 additions and 3 deletions
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11
builtin/ls-remote.c
View File

@ -5,7 +5,7 @@
static const char ls_remote_usage[] =
"git ls-remote [--heads] [--tags] [-u <exec> | --upload-pack <exec>]\n"
" [-q|--quiet] [<repository> [<refs>...]]";
" [-q|--quiet] [--exit-code] [<repository> [<refs>...]]";
/*
* Is there one among the list of patterns that match the tail part
@ -35,6 +35,7 @@ int cmd_ls_remote(int argc, const char **argv, const char *prefix)
unsigned flags = 0;
int get_url = 0;
int quiet = 0;
int status = 0;
const char *uploadpack = NULL;
const char **pattern = NULL;
@ -74,6 +75,11 @@ int cmd_ls_remote(int argc, const char **argv, const char *prefix)
get_url = 1;
continue;
}
if (!strcmp("--exit-code", arg)) {
/* return this code if no refs are reported */
status = 2;
continue;
}
usage(ls_remote_usage);
}
dest = arg;
@ -121,6 +127,7 @@ int cmd_ls_remote(int argc, const char **argv, const char *prefix)
if (!tail_match(pattern, ref->name))
continue;
printf("%s %s\n", sha1_to_hex(ref->old_sha1), ref->name);
status = 0; /* we found something */
}
return 0;
return status;
}