зеркало из https://github.com/microsoft/git.git
88 строки
2.5 KiB
C
88 строки
2.5 KiB
C
#include "builtin.h"
|
|
#include "config.h"
|
|
#include "cache.h"
|
|
#include "refs.h"
|
|
#include "parse-options.h"
|
|
|
|
static const char * const git_symbolic_ref_usage[] = {
|
|
N_("git symbolic-ref [-m <reason>] <name> <ref>"),
|
|
N_("git symbolic-ref [-q] [--short] [--no-recurse] <name>"),
|
|
N_("git symbolic-ref --delete [-q] <name>"),
|
|
NULL
|
|
};
|
|
|
|
static int check_symref(const char *HEAD, int quiet, int shorten, int recurse, int print)
|
|
{
|
|
int resolve_flags, flag;
|
|
const char *refname;
|
|
|
|
resolve_flags = (recurse ? 0 : RESOLVE_REF_NO_RECURSE);
|
|
refname = resolve_ref_unsafe(HEAD, resolve_flags, NULL, &flag);
|
|
|
|
if (!refname)
|
|
die("No such ref: %s", HEAD);
|
|
else if (!(flag & REF_ISSYMREF)) {
|
|
if (!quiet)
|
|
die("ref %s is not a symbolic ref", HEAD);
|
|
else
|
|
return 1;
|
|
}
|
|
if (print) {
|
|
char *to_free = NULL;
|
|
if (shorten)
|
|
refname = to_free = shorten_unambiguous_ref(refname, 0);
|
|
puts(refname);
|
|
free(to_free);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int cmd_symbolic_ref(int argc, const char **argv, const char *prefix)
|
|
{
|
|
int quiet = 0, delete = 0, shorten = 0, recurse = 1, ret = 0;
|
|
const char *msg = NULL;
|
|
struct option options[] = {
|
|
OPT__QUIET(&quiet,
|
|
N_("suppress error message for non-symbolic (detached) refs")),
|
|
OPT_BOOL('d', "delete", &delete, N_("delete symbolic ref")),
|
|
OPT_BOOL(0, "short", &shorten, N_("shorten ref output")),
|
|
OPT_BOOL(0, "recurse", &recurse, N_("recursively dereference (default)")),
|
|
OPT_STRING('m', NULL, &msg, N_("reason"), N_("reason of the update")),
|
|
OPT_END(),
|
|
};
|
|
|
|
git_config(git_default_config, NULL);
|
|
argc = parse_options(argc, argv, prefix, options,
|
|
git_symbolic_ref_usage, 0);
|
|
if (msg && !*msg)
|
|
die("Refusing to perform update with empty message");
|
|
|
|
if (delete) {
|
|
if (argc != 1)
|
|
usage_with_options(git_symbolic_ref_usage, options);
|
|
ret = check_symref(argv[0], 1, 0, 0, 0);
|
|
if (ret)
|
|
die("Cannot delete %s, not a symbolic ref", argv[0]);
|
|
if (!strcmp(argv[0], "HEAD"))
|
|
die("deleting '%s' is not allowed", argv[0]);
|
|
return delete_ref(NULL, argv[0], NULL, REF_NO_DEREF);
|
|
}
|
|
|
|
switch (argc) {
|
|
case 1:
|
|
ret = check_symref(argv[0], quiet, shorten, recurse, 1);
|
|
break;
|
|
case 2:
|
|
if (!strcmp(argv[0], "HEAD") &&
|
|
!starts_with(argv[1], "refs/"))
|
|
die("Refusing to point HEAD outside of refs/");
|
|
if (check_refname_format(argv[1], REFNAME_ALLOW_ONELEVEL) < 0)
|
|
die("Refusing to set '%s' to invalid ref '%s'", argv[0], argv[1]);
|
|
ret = !!create_symref(argv[0], argv[1], msg);
|
|
break;
|
|
default:
|
|
usage_with_options(git_symbolic_ref_usage, options);
|
|
}
|
|
return ret;
|
|
}
|