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ls-remote: add support for showing symrefs

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Sometimes it's useful to know the main branch of a git repository
without actually downloading the repository.  This can be done by
looking at the symrefs stored in the remote repository.  Currently git
doesn't provide a simple way to show the symrefs stored on the remote
repository, even though the information is available.  Add a --symref
command line argument to the ls-remote command, which shows the symrefs
in the remote repository.

While there, replace a literal tab in the format string with \t to make
it more obvious to the reader.

Suggested-by: pedro rijo <pedrorijo91@gmail.com>
Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Thomas Gummerer
2016-01-19 00:20:50 +01:00
committed by Junio C Hamano
parent ba5f28bf79
commit 99c08d4eb2
3 changed files with 61 additions and 3 deletions
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10
builtin/ls-remote.c
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@ -5,7 +5,8 @@
static const char * const ls_remote_usage[] = {
N_("git ls-remote [--heads] [--tags] [--refs] [--upload-pack=<exec>]\n"
" [-q | --quiet] [--exit-code] [--get-url] [<repository> [<refs>...]]"),
" [-q | --quiet] [--exit-code] [--get-url]\n"
" [--symref] [<repository> [<refs>...]]"),
NULL
};
@ -37,6 +38,7 @@ int cmd_ls_remote(int argc, const char **argv, const char *prefix)
int get_url = 0;
int quiet = 0;
int status = 0;
int show_symref_target = 0;
const char *uploadpack = NULL;
const char **pattern = NULL;
@ -58,6 +60,8 @@ int cmd_ls_remote(int argc, const char **argv, const char *prefix)
N_("take url.<base>.insteadOf into account")),
OPT_SET_INT(0, "exit-code", &status,
N_("exit with exit code 2 if no matching refs are found"), 2),
OPT_BOOL(0, "symref", &show_symref_target,
N_("show underlying ref in addition to the object pointed by it")),
OPT_END()
};
@ -101,7 +105,9 @@ int cmd_ls_remote(int argc, const char **argv, const char *prefix)
continue;
if (!tail_match(pattern, ref->name))
continue;
printf("%s %s\n", oid_to_hex(&ref->old_oid), ref->name);
if (show_symref_target && ref->symref)
printf("ref: %s\t%s\n", ref->symref, ref->name);
printf("%s\t%s\n", oid_to_hex(&ref->old_oid), ref->name);
status = 0; /* we found something */
}
return status;