mirror of
https://github.com/git/git
synced 2024-08-27 11:39:22 +00:00
![Junio C Hamano](/assets/img/avatar_default.png)
This is a mechanical conversion of all '*.c' files with: s/((?:die|error|warning)\("git)-(\S+:)/$1 $2/; The result was manually inspected and no false positive was found. Signed-off-by: Junio C Hamano <gitster@pobox.com>
257 lines
5.9 KiB
C
257 lines
5.9 KiB
C
#include "builtin.h"
|
|
#include "cache.h"
|
|
#include "refs.h"
|
|
#include "object.h"
|
|
#include "tag.h"
|
|
#include "string-list.h"
|
|
|
|
static const char show_ref_usage[] = "git show-ref [-q|--quiet] [--verify] [-h|--head] [-d|--dereference] [-s|--hash[=<length>]] [--abbrev[=<length>]] [--tags] [--heads] [--] [pattern*] < ref-list";
|
|
|
|
static int deref_tags = 0, show_head = 0, tags_only = 0, heads_only = 0,
|
|
found_match = 0, verify = 0, quiet = 0, hash_only = 0, abbrev = 0;
|
|
static const char **pattern;
|
|
|
|
static void show_one(const char *refname, const unsigned char *sha1)
|
|
{
|
|
const char *hex = find_unique_abbrev(sha1, abbrev);
|
|
if (hash_only)
|
|
printf("%s\n", hex);
|
|
else
|
|
printf("%s %s\n", hex, refname);
|
|
}
|
|
|
|
static int show_ref(const char *refname, const unsigned char *sha1, int flag, void *cbdata)
|
|
{
|
|
struct object *obj;
|
|
const char *hex;
|
|
unsigned char peeled[20];
|
|
|
|
if (tags_only || heads_only) {
|
|
int match;
|
|
|
|
match = heads_only && !prefixcmp(refname, "refs/heads/");
|
|
match |= tags_only && !prefixcmp(refname, "refs/tags/");
|
|
if (!match)
|
|
return 0;
|
|
}
|
|
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;
|
|
/* "--verify" requires an exact match */
|
|
if (verify)
|
|
continue;
|
|
if (refname[reflen - len - 1] == '/')
|
|
goto match;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
match:
|
|
found_match++;
|
|
|
|
/* This changes the semantics slightly that even under quiet we
|
|
* detect and return error if the repository is corrupt and
|
|
* ref points at a nonexistent object.
|
|
*/
|
|
if (!has_sha1_file(sha1))
|
|
die("git show-ref: bad ref %s (%s)", refname,
|
|
sha1_to_hex(sha1));
|
|
|
|
if (quiet)
|
|
return 0;
|
|
|
|
show_one(refname, sha1);
|
|
|
|
if (!deref_tags)
|
|
return 0;
|
|
|
|
if ((flag & REF_ISPACKED) && !peel_ref(refname, peeled)) {
|
|
if (!is_null_sha1(peeled)) {
|
|
hex = find_unique_abbrev(peeled, abbrev);
|
|
printf("%s %s^{}\n", hex, refname);
|
|
}
|
|
}
|
|
else {
|
|
obj = parse_object(sha1);
|
|
if (!obj)
|
|
die("git show-ref: bad ref %s (%s)", refname,
|
|
sha1_to_hex(sha1));
|
|
if (obj->type == OBJ_TAG) {
|
|
obj = deref_tag(obj, refname, 0);
|
|
if (!obj)
|
|
die("git show-ref: bad tag at ref %s (%s)", refname,
|
|
sha1_to_hex(sha1));
|
|
hex = find_unique_abbrev(obj->sha1, abbrev);
|
|
printf("%s %s^{}\n", hex, refname);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int add_existing(const char *refname, const unsigned char *sha1, int flag, void *cbdata)
|
|
{
|
|
struct string_list *list = (struct string_list *)cbdata;
|
|
string_list_insert(refname, list);
|
|
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 = { NULL, 0, 0, 0 };
|
|
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_ref_format(ref)) {
|
|
fprintf(stderr, "warning: ref '%s' ignored\n", ref);
|
|
continue;
|
|
}
|
|
if (!string_list_has_string(&existing_refs, ref)) {
|
|
printf("%s\n", buf);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int cmd_show_ref(int argc, const char **argv, const char *prefix)
|
|
{
|
|
int i;
|
|
|
|
for (i = 1; i < argc; i++) {
|
|
const char *arg = argv[i];
|
|
if (*arg != '-') {
|
|
pattern = argv + i;
|
|
break;
|
|
}
|
|
if (!strcmp(arg, "--")) {
|
|
pattern = argv + i + 1;
|
|
if (!*pattern)
|
|
pattern = NULL;
|
|
break;
|
|
}
|
|
if (!strcmp(arg, "-q") || !strcmp(arg, "--quiet")) {
|
|
quiet = 1;
|
|
continue;
|
|
}
|
|
if (!strcmp(arg, "-h") || !strcmp(arg, "--head")) {
|
|
show_head = 1;
|
|
continue;
|
|
}
|
|
if (!strcmp(arg, "-d") || !strcmp(arg, "--dereference")) {
|
|
deref_tags = 1;
|
|
continue;
|
|
}
|
|
if (!strcmp(arg, "-s") || !strcmp(arg, "--hash")) {
|
|
hash_only = 1;
|
|
continue;
|
|
}
|
|
if (!prefixcmp(arg, "--hash=") ||
|
|
(!prefixcmp(arg, "--abbrev") &&
|
|
(arg[8] == '=' || arg[8] == '\0'))) {
|
|
if (arg[2] != 'h' && !arg[8])
|
|
/* --abbrev only */
|
|
abbrev = DEFAULT_ABBREV;
|
|
else {
|
|
/* --hash= or --abbrev= */
|
|
char *end;
|
|
if (arg[2] == 'h') {
|
|
hash_only = 1;
|
|
arg += 7;
|
|
}
|
|
else
|
|
arg += 9;
|
|
abbrev = strtoul(arg, &end, 10);
|
|
if (*end || abbrev > 40)
|
|
usage(show_ref_usage);
|
|
if (abbrev < MINIMUM_ABBREV)
|
|
abbrev = MINIMUM_ABBREV;
|
|
}
|
|
continue;
|
|
}
|
|
if (!strcmp(arg, "--verify")) {
|
|
verify = 1;
|
|
continue;
|
|
}
|
|
if (!strcmp(arg, "--tags")) {
|
|
tags_only = 1;
|
|
continue;
|
|
}
|
|
if (!strcmp(arg, "--heads")) {
|
|
heads_only = 1;
|
|
continue;
|
|
}
|
|
if (!strcmp(arg, "--exclude-existing"))
|
|
return exclude_existing(NULL);
|
|
if (!prefixcmp(arg, "--exclude-existing="))
|
|
return exclude_existing(arg + 19);
|
|
usage(show_ref_usage);
|
|
}
|
|
|
|
if (verify) {
|
|
if (!pattern)
|
|
die("--verify requires a reference");
|
|
while (*pattern) {
|
|
unsigned char sha1[20];
|
|
|
|
if (!prefixcmp(*pattern, "refs/") &&
|
|
resolve_ref(*pattern, sha1, 1, NULL)) {
|
|
if (!quiet)
|
|
show_one(*pattern, sha1);
|
|
}
|
|
else if (!quiet)
|
|
die("'%s' - not a valid ref", *pattern);
|
|
else
|
|
return 1;
|
|
pattern++;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
if (show_head)
|
|
head_ref(show_ref, NULL);
|
|
for_each_ref(show_ref, NULL);
|
|
if (!found_match) {
|
|
if (verify && !quiet)
|
|
die("No match");
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|