5 #include "object-store.h"
8 #include "string-list.h"
9 #include "parse-options.h"
11 static const char * const show_ref_usage
[] = {
12 N_("git show-ref [-q | --quiet] [--verify] [--head] [-d | --dereference] [-s | --hash[=<n>]] [--abbrev[=<n>]] [--tags] [--heads] [--] [<pattern>...]"),
13 N_("git show-ref --exclude-existing[=<pattern>]"),
17 static int deref_tags
, show_head
, tags_only
, heads_only
, found_match
, verify
,
18 quiet
, hash_only
, abbrev
, exclude_arg
;
19 static const char **pattern
;
20 static const char *exclude_existing_arg
;
22 static void show_one(const char *refname
, const struct object_id
*oid
)
25 struct object_id peeled
;
27 if (!has_object_file(oid
))
28 die("git show-ref: bad ref %s (%s)", refname
,
34 hex
= find_unique_abbrev(oid
, abbrev
);
38 printf("%s %s\n", hex
, refname
);
43 if (!peel_iterated_oid(oid
, &peeled
)) {
44 hex
= find_unique_abbrev(&peeled
, abbrev
);
45 printf("%s %s^{}\n", hex
, refname
);
49 static int show_ref(const char *refname
, const struct object_id
*oid
,
50 int UNUSED(flag
), void *UNUSED(cbdata
))
52 if (show_head
&& !strcmp(refname
, "HEAD"))
56 int reflen
= strlen(refname
);
57 const char **p
= pattern
, *m
;
58 while ((m
= *p
++) != NULL
) {
62 if (memcmp(m
, refname
+ reflen
- len
, len
))
66 if (refname
[reflen
- len
- 1] == '/')
75 show_one(refname
, oid
);
80 static int add_existing(const char *refname
,
81 const struct object_id
*UNUSED(oid
),
82 int UNUSED(flag
), void *cbdata
)
84 struct string_list
*list
= (struct string_list
*)cbdata
;
85 string_list_insert(list
, refname
);
90 * read "^(?:<anything>\s)?<refname>(?:\^\{\})?$" from the standard input,
92 * (1) strip "^{}" at the end of line if any;
93 * (2) ignore if match is provided and does not head-match refname;
94 * (3) warn if refname is not a well-formed refname and skip;
95 * (4) ignore if refname is a ref that exists in the local repository;
96 * (5) otherwise output the line.
98 static int exclude_existing(const char *match
)
100 static struct string_list existing_refs
= STRING_LIST_INIT_DUP
;
102 int matchlen
= match
? strlen(match
) : 0;
104 for_each_ref(add_existing
, &existing_refs
);
105 while (fgets(buf
, sizeof(buf
), stdin
)) {
107 int len
= strlen(buf
);
109 if (len
> 0 && buf
[len
- 1] == '\n')
111 if (3 <= len
&& !strcmp(buf
+ len
- 3, "^{}")) {
115 for (ref
= buf
+ len
; buf
< ref
; ref
--)
116 if (isspace(ref
[-1]))
119 int reflen
= buf
+ len
- ref
;
120 if (reflen
< matchlen
)
122 if (strncmp(ref
, match
, matchlen
))
125 if (check_refname_format(ref
, 0)) {
126 warning("ref '%s' ignored", ref
);
129 if (!string_list_has_string(&existing_refs
, ref
)) {
136 static int hash_callback(const struct option
*opt
, const char *arg
, int unset
)
139 /* Use full length SHA1 if no argument */
142 return parse_opt_abbrev_cb(opt
, arg
, unset
);
145 static int exclude_existing_callback(const struct option
*opt
, const char *arg
,
148 BUG_ON_OPT_NEG(unset
);
150 *(const char **)opt
->value
= arg
;
154 static const struct option show_ref_options
[] = {
155 OPT_BOOL(0, "tags", &tags_only
, N_("only show tags (can be combined with heads)")),
156 OPT_BOOL(0, "heads", &heads_only
, N_("only show heads (can be combined with tags)")),
157 OPT_BOOL(0, "verify", &verify
, N_("stricter reference checking, "
158 "requires exact ref path")),
159 OPT_HIDDEN_BOOL('h', NULL
, &show_head
,
160 N_("show the HEAD reference, even if it would be filtered out")),
161 OPT_BOOL(0, "head", &show_head
,
162 N_("show the HEAD reference, even if it would be filtered out")),
163 OPT_BOOL('d', "dereference", &deref_tags
,
164 N_("dereference tags into object IDs")),
165 OPT_CALLBACK_F('s', "hash", &abbrev
, N_("n"),
166 N_("only show SHA1 hash using <n> digits"),
167 PARSE_OPT_OPTARG
, &hash_callback
),
168 OPT__ABBREV(&abbrev
),
170 N_("do not print results to stdout (useful with --verify)")),
171 OPT_CALLBACK_F(0, "exclude-existing", &exclude_existing_arg
,
172 N_("pattern"), N_("show refs from stdin that aren't in local repository"),
173 PARSE_OPT_OPTARG
| PARSE_OPT_NONEG
, exclude_existing_callback
),
177 int cmd_show_ref(int argc
, const char **argv
, const char *prefix
)
179 git_config(git_default_config
, NULL
);
181 argc
= parse_options(argc
, argv
, prefix
, show_ref_options
,
185 return exclude_existing(exclude_existing_arg
);
193 die("--verify requires a reference");
195 struct object_id oid
;
197 if ((starts_with(*pattern
, "refs/") || !strcmp(*pattern
, "HEAD")) &&
198 !read_ref(*pattern
, &oid
)) {
199 show_one(*pattern
, &oid
);
202 die("'%s' - not a valid ref", *pattern
);
211 head_ref(show_ref
, NULL
);
212 if (heads_only
|| tags_only
) {
214 for_each_fullref_in("refs/heads/", show_ref
, NULL
);
216 for_each_fullref_in("refs/tags/", show_ref
, NULL
);
218 for_each_ref(show_ref
, NULL
);
221 if (verify
&& !quiet
)