mirror of
https://github.com/git/git
synced 2024-08-28 20:20:07 +00:00
![Elijah Newren](/assets/img/avatar_default.png)
Signed-off-by: Elijah Newren <newren@gmail.com> Acked-by: Calvin Wan <calvinwan@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
232 lines
5.8 KiB
C
232 lines
5.8 KiB
C
#include "builtin.h"
|
|
#include "cache.h"
|
|
#include "config.h"
|
|
#include "gettext.h"
|
|
#include "hex.h"
|
|
#include "refs.h"
|
|
#include "object-name.h"
|
|
#include "object-store.h"
|
|
#include "object.h"
|
|
#include "tag.h"
|
|
#include "string-list.h"
|
|
#include "parse-options.h"
|
|
|
|
static const char * const show_ref_usage[] = {
|
|
N_("git show-ref [-q | --quiet] [--verify] [--head] [-d | --dereference]\n"
|
|
" [-s | --hash[=<n>]] [--abbrev[=<n>]] [--tags]\n"
|
|
" [--heads] [--] [<pattern>...]"),
|
|
N_("git show-ref --exclude-existing[=<pattern>]"),
|
|
NULL
|
|
};
|
|
|
|
static int deref_tags, show_head, tags_only, heads_only, found_match, verify,
|
|
quiet, hash_only, abbrev, exclude_arg;
|
|
static const char **pattern;
|
|
static const char *exclude_existing_arg;
|
|
|
|
static void show_one(const char *refname, const struct object_id *oid)
|
|
{
|
|
const char *hex;
|
|
struct object_id peeled;
|
|
|
|
if (!repo_has_object_file(the_repository, oid))
|
|
die("git show-ref: bad ref %s (%s)", refname,
|
|
oid_to_hex(oid));
|
|
|
|
if (quiet)
|
|
return;
|
|
|
|
hex = repo_find_unique_abbrev(the_repository, oid, abbrev);
|
|
if (hash_only)
|
|
printf("%s\n", hex);
|
|
else
|
|
printf("%s %s\n", hex, refname);
|
|
|
|
if (!deref_tags)
|
|
return;
|
|
|
|
if (!peel_iterated_oid(oid, &peeled)) {
|
|
hex = repo_find_unique_abbrev(the_repository, &peeled, abbrev);
|
|
printf("%s %s^{}\n", hex, refname);
|
|
}
|
|
}
|
|
|
|
static int show_ref(const char *refname, const struct object_id *oid,
|
|
int flag UNUSED, void *cbdata UNUSED)
|
|
{
|
|
if (show_head && !strcmp(refname, "HEAD"))
|
|
goto match;
|
|
|
|
if (pattern) {
|
|
int reflen = strlen(refname);
|
|
const char **p = pattern, *m;
|
|
while ((m = *p++) != NULL) {
|
|
int len = strlen(m);
|
|
if (len > reflen)
|
|
continue;
|
|
if (memcmp(m, refname + reflen - len, len))
|
|
continue;
|
|
if (len == reflen)
|
|
goto match;
|
|
if (refname[reflen - len - 1] == '/')
|
|
goto match;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
match:
|
|
found_match++;
|
|
|
|
show_one(refname, oid);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int add_existing(const char *refname,
|
|
const struct object_id *oid UNUSED,
|
|
int flag UNUSED, void *cbdata)
|
|
{
|
|
struct string_list *list = (struct string_list *)cbdata;
|
|
string_list_insert(list, refname);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* read "^(?:<anything>\s)?<refname>(?:\^\{\})?$" from the standard input,
|
|
* and
|
|
* (1) strip "^{}" at the end of line if any;
|
|
* (2) ignore if match is provided and does not head-match refname;
|
|
* (3) warn if refname is not a well-formed refname and skip;
|
|
* (4) ignore if refname is a ref that exists in the local repository;
|
|
* (5) otherwise output the line.
|
|
*/
|
|
static int exclude_existing(const char *match)
|
|
{
|
|
static struct string_list existing_refs = STRING_LIST_INIT_DUP;
|
|
char buf[1024];
|
|
int matchlen = match ? strlen(match) : 0;
|
|
|
|
for_each_ref(add_existing, &existing_refs);
|
|
while (fgets(buf, sizeof(buf), stdin)) {
|
|
char *ref;
|
|
int len = strlen(buf);
|
|
|
|
if (len > 0 && buf[len - 1] == '\n')
|
|
buf[--len] = '\0';
|
|
if (3 <= len && !strcmp(buf + len - 3, "^{}")) {
|
|
len -= 3;
|
|
buf[len] = '\0';
|
|
}
|
|
for (ref = buf + len; buf < ref; ref--)
|
|
if (isspace(ref[-1]))
|
|
break;
|
|
if (match) {
|
|
int reflen = buf + len - ref;
|
|
if (reflen < matchlen)
|
|
continue;
|
|
if (strncmp(ref, match, matchlen))
|
|
continue;
|
|
}
|
|
if (check_refname_format(ref, 0)) {
|
|
warning("ref '%s' ignored", ref);
|
|
continue;
|
|
}
|
|
if (!string_list_has_string(&existing_refs, ref)) {
|
|
printf("%s\n", buf);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int hash_callback(const struct option *opt, const char *arg, int unset)
|
|
{
|
|
hash_only = 1;
|
|
/* Use full length SHA1 if no argument */
|
|
if (!arg)
|
|
return 0;
|
|
return parse_opt_abbrev_cb(opt, arg, unset);
|
|
}
|
|
|
|
static int exclude_existing_callback(const struct option *opt, const char *arg,
|
|
int unset)
|
|
{
|
|
BUG_ON_OPT_NEG(unset);
|
|
exclude_arg = 1;
|
|
*(const char **)opt->value = arg;
|
|
return 0;
|
|
}
|
|
|
|
static const struct option show_ref_options[] = {
|
|
OPT_BOOL(0, "tags", &tags_only, N_("only show tags (can be combined with heads)")),
|
|
OPT_BOOL(0, "heads", &heads_only, N_("only show heads (can be combined with tags)")),
|
|
OPT_BOOL(0, "verify", &verify, N_("stricter reference checking, "
|
|
"requires exact ref path")),
|
|
OPT_HIDDEN_BOOL('h', NULL, &show_head,
|
|
N_("show the HEAD reference, even if it would be filtered out")),
|
|
OPT_BOOL(0, "head", &show_head,
|
|
N_("show the HEAD reference, even if it would be filtered out")),
|
|
OPT_BOOL('d', "dereference", &deref_tags,
|
|
N_("dereference tags into object IDs")),
|
|
OPT_CALLBACK_F('s', "hash", &abbrev, N_("n"),
|
|
N_("only show SHA1 hash using <n> digits"),
|
|
PARSE_OPT_OPTARG, &hash_callback),
|
|
OPT__ABBREV(&abbrev),
|
|
OPT__QUIET(&quiet,
|
|
N_("do not print results to stdout (useful with --verify)")),
|
|
OPT_CALLBACK_F(0, "exclude-existing", &exclude_existing_arg,
|
|
N_("pattern"), N_("show refs from stdin that aren't in local repository"),
|
|
PARSE_OPT_OPTARG | PARSE_OPT_NONEG, exclude_existing_callback),
|
|
OPT_END()
|
|
};
|
|
|
|
int cmd_show_ref(int argc, const char **argv, const char *prefix)
|
|
{
|
|
git_config(git_default_config, NULL);
|
|
|
|
argc = parse_options(argc, argv, prefix, show_ref_options,
|
|
show_ref_usage, 0);
|
|
|
|
if (exclude_arg)
|
|
return exclude_existing(exclude_existing_arg);
|
|
|
|
pattern = argv;
|
|
if (!*pattern)
|
|
pattern = NULL;
|
|
|
|
if (verify) {
|
|
if (!pattern)
|
|
die("--verify requires a reference");
|
|
while (*pattern) {
|
|
struct object_id oid;
|
|
|
|
if ((starts_with(*pattern, "refs/") || !strcmp(*pattern, "HEAD")) &&
|
|
!read_ref(*pattern, &oid)) {
|
|
show_one(*pattern, &oid);
|
|
}
|
|
else if (!quiet)
|
|
die("'%s' - not a valid ref", *pattern);
|
|
else
|
|
return 1;
|
|
pattern++;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
if (show_head)
|
|
head_ref(show_ref, NULL);
|
|
if (heads_only || tags_only) {
|
|
if (heads_only)
|
|
for_each_fullref_in("refs/heads/", show_ref, NULL);
|
|
if (tags_only)
|
|
for_each_fullref_in("refs/tags/", show_ref, NULL);
|
|
} else {
|
|
for_each_ref(show_ref, NULL);
|
|
}
|
|
if (!found_match) {
|
|
if (verify && !quiet)
|
|
die("No match");
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|