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Commit | Line | Data |
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baffc0e7 | 1 | #include "builtin.h" |
8e712ef6 | 2 | #include "config.h" |
f394e093 | 3 | #include "gettext.h" |
41771fa4 | 4 | #include "hex.h" |
9080a7f1 | 5 | #include "refs/refs-internal.h" |
dabab1d6 | 6 | #include "object-name.h" |
a034e910 | 7 | #include "object-store-ll.h" |
358ddb62 | 8 | #include "object.h" |
c455c87c | 9 | #include "string-list.h" |
69932bc6 | 10 | #include "parse-options.h" |
358ddb62 | 11 | |
69932bc6 | 12 | static const char * const show_ref_usage[] = { |
1307d5e8 | 13 | N_("git show-ref [--head] [-d | --dereference]\n" |
5af8b61c ÆAB |
14 | " [-s | --hash[=<n>]] [--abbrev[=<n>]] [--tags]\n" |
15 | " [--heads] [--] [<pattern>...]"), | |
1307d5e8 PS |
16 | N_("git show-ref --verify [-q | --quiet] [-d | --dereference]\n" |
17 | " [-s | --hash[=<n>]] [--abbrev[=<n>]]\n" | |
18 | " [--] [<ref>...]"), | |
33e8fc87 | 19 | N_("git show-ref --exclude-existing[=<pattern>]"), |
9080a7f1 | 20 | N_("git show-ref --exists <ref>"), |
69932bc6 SB |
21 | NULL |
22 | }; | |
358ddb62 | 23 | |
b0f0be93 PS |
24 | struct show_one_options { |
25 | int quiet; | |
26 | int hash_only; | |
27 | int abbrev; | |
28 | int deref_tags; | |
29 | }; | |
30 | ||
31 | static void show_one(const struct show_one_options *opts, | |
32 | const char *refname, const struct object_id *oid) | |
64fe031a | 33 | { |
f1627040 VP |
34 | const char *hex; |
35 | struct object_id peeled; | |
36 | ||
bc726bd0 | 37 | if (!repo_has_object_file(the_repository, oid)) |
d01b8203 VP |
38 | die("git show-ref: bad ref %s (%s)", refname, |
39 | oid_to_hex(oid)); | |
40 | ||
b0f0be93 | 41 | if (opts->quiet) |
14144d3b VP |
42 | return; |
43 | ||
b0f0be93 PS |
44 | hex = repo_find_unique_abbrev(the_repository, oid, opts->abbrev); |
45 | if (opts->hash_only) | |
64fe031a JH |
46 | printf("%s\n", hex); |
47 | else | |
48 | printf("%s %s\n", hex, refname); | |
f1627040 | 49 | |
b0f0be93 | 50 | if (!opts->deref_tags) |
f1627040 VP |
51 | return; |
52 | ||
36a31792 | 53 | if (!peel_iterated_oid(oid, &peeled)) { |
b0f0be93 | 54 | hex = repo_find_unique_abbrev(the_repository, &peeled, opts->abbrev); |
f1627040 VP |
55 | printf("%s %s^{}\n", hex, refname); |
56 | } | |
64fe031a JH |
57 | } |
58 | ||
ff546ebb | 59 | struct show_ref_data { |
b0f0be93 | 60 | const struct show_one_options *show_one_opts; |
ff546ebb | 61 | const char **patterns; |
84650989 | 62 | int found_match; |
ee26f1e2 | 63 | int show_head; |
ff546ebb PS |
64 | }; |
65 | ||
f0a011fa | 66 | static int show_ref(const char *refname, const struct object_id *oid, |
ff546ebb | 67 | int flag UNUSED, void *cbdata) |
358ddb62 | 68 | { |
ff546ebb PS |
69 | struct show_ref_data *data = cbdata; |
70 | ||
ee26f1e2 | 71 | if (data->show_head && !strcmp(refname, "HEAD")) |
3f3d0cea DB |
72 | goto match; |
73 | ||
ff546ebb | 74 | if (data->patterns) { |
358ddb62 | 75 | int reflen = strlen(refname); |
ff546ebb | 76 | const char **p = data->patterns, *m; |
358ddb62 LT |
77 | while ((m = *p++) != NULL) { |
78 | int len = strlen(m); | |
79 | if (len > reflen) | |
80 | continue; | |
81 | if (memcmp(m, refname + reflen - len, len)) | |
82 | continue; | |
83 | if (len == reflen) | |
84 | goto match; | |
358ddb62 LT |
85 | if (refname[reflen - len - 1] == '/') |
86 | goto match; | |
87 | } | |
88 | return 0; | |
89 | } | |
90 | ||
91 | match: | |
84650989 | 92 | data->found_match++; |
cf0adba7 | 93 | |
b0f0be93 | 94 | show_one(data->show_one_opts, refname, oid); |
cf0adba7 | 95 | |
358ddb62 LT |
96 | return 0; |
97 | } | |
98 | ||
63e14ee2 | 99 | static int add_existing(const char *refname, |
5cf88fd8 ÆAB |
100 | const struct object_id *oid UNUSED, |
101 | int flag UNUSED, void *cbdata) | |
ed9f7c95 | 102 | { |
c455c87c | 103 | struct string_list *list = (struct string_list *)cbdata; |
78a395d3 | 104 | string_list_insert(list, refname); |
ed9f7c95 JH |
105 | return 0; |
106 | } | |
107 | ||
7907fb0c PS |
108 | struct exclude_existing_options { |
109 | /* | |
110 | * We need an explicit `enabled` field because it is perfectly valid | |
111 | * for `pattern` to be `NULL` even if `--exclude-existing` was given. | |
112 | */ | |
113 | int enabled; | |
114 | const char *pattern; | |
115 | }; | |
116 | ||
ed9f7c95 JH |
117 | /* |
118 | * read "^(?:<anything>\s)?<refname>(?:\^\{\})?$" from the standard input, | |
119 | * and | |
120 | * (1) strip "^{}" at the end of line if any; | |
121 | * (2) ignore if match is provided and does not head-match refname; | |
122 | * (3) warn if refname is not a well-formed refname and skip; | |
123 | * (4) ignore if refname is a ref that exists in the local repository; | |
124 | * (5) otherwise output the line. | |
125 | */ | |
7907fb0c | 126 | static int cmd_show_ref__exclude_existing(const struct exclude_existing_options *opts) |
ed9f7c95 | 127 | { |
dbabd0b0 | 128 | struct string_list existing_refs = STRING_LIST_INIT_DUP; |
ed9f7c95 | 129 | char buf[1024]; |
7907fb0c | 130 | int patternlen = opts->pattern ? strlen(opts->pattern) : 0; |
ed9f7c95 | 131 | |
2e5c4758 PS |
132 | refs_for_each_ref(get_main_ref_store(the_repository), add_existing, |
133 | &existing_refs); | |
ed9f7c95 | 134 | while (fgets(buf, sizeof(buf), stdin)) { |
ed9f7c95 | 135 | char *ref; |
d8285af4 JH |
136 | int len = strlen(buf); |
137 | ||
ed9f7c95 JH |
138 | if (len > 0 && buf[len - 1] == '\n') |
139 | buf[--len] = '\0'; | |
d8285af4 | 140 | if (3 <= len && !strcmp(buf + len - 3, "^{}")) { |
ed9f7c95 JH |
141 | len -= 3; |
142 | buf[len] = '\0'; | |
143 | } | |
144 | for (ref = buf + len; buf < ref; ref--) | |
145 | if (isspace(ref[-1])) | |
146 | break; | |
7907fb0c | 147 | if (opts->pattern) { |
ed9f7c95 | 148 | int reflen = buf + len - ref; |
7907fb0c | 149 | if (reflen < patternlen) |
ed9f7c95 | 150 | continue; |
7907fb0c | 151 | if (strncmp(ref, opts->pattern, patternlen)) |
ed9f7c95 JH |
152 | continue; |
153 | } | |
8d9c5010 | 154 | if (check_refname_format(ref, 0)) { |
5620e77e | 155 | warning("ref '%s' ignored", ref); |
ed9f7c95 JH |
156 | continue; |
157 | } | |
c455c87c | 158 | if (!string_list_has_string(&existing_refs, ref)) { |
ed9f7c95 JH |
159 | printf("%s\n", buf); |
160 | } | |
161 | } | |
dbabd0b0 PS |
162 | |
163 | string_list_clear(&existing_refs, 0); | |
ed9f7c95 JH |
164 | return 0; |
165 | } | |
166 | ||
b0f0be93 PS |
167 | static int cmd_show_ref__verify(const struct show_one_options *show_one_opts, |
168 | const char **refs) | |
b14cbae2 PS |
169 | { |
170 | if (!refs || !*refs) | |
171 | die("--verify requires a reference"); | |
172 | ||
173 | while (*refs) { | |
174 | struct object_id oid; | |
175 | ||
1dbe4015 | 176 | if ((starts_with(*refs, "refs/") || refname_is_safe(*refs)) && |
2e5c4758 | 177 | !refs_read_ref(get_main_ref_store(the_repository), *refs, &oid)) { |
b0f0be93 | 178 | show_one(show_one_opts, *refs, &oid); |
b14cbae2 | 179 | } |
b0f0be93 | 180 | else if (!show_one_opts->quiet) |
b14cbae2 PS |
181 | die("'%s' - not a valid ref", *refs); |
182 | else | |
183 | return 1; | |
184 | refs++; | |
185 | } | |
186 | ||
187 | return 0; | |
188 | } | |
189 | ||
ee26f1e2 PS |
190 | struct patterns_options { |
191 | int show_head; | |
192 | int heads_only; | |
193 | int tags_only; | |
194 | }; | |
195 | ||
196 | static int cmd_show_ref__patterns(const struct patterns_options *opts, | |
197 | const struct show_one_options *show_one_opts, | |
b0f0be93 | 198 | const char **patterns) |
b14cbae2 | 199 | { |
b0f0be93 PS |
200 | struct show_ref_data show_ref_data = { |
201 | .show_one_opts = show_one_opts, | |
ee26f1e2 | 202 | .show_head = opts->show_head, |
b0f0be93 | 203 | }; |
b14cbae2 PS |
204 | |
205 | if (patterns && *patterns) | |
206 | show_ref_data.patterns = patterns; | |
207 | ||
ee26f1e2 | 208 | if (opts->show_head) |
2e5c4758 PS |
209 | refs_head_ref(get_main_ref_store(the_repository), show_ref, |
210 | &show_ref_data); | |
ee26f1e2 PS |
211 | if (opts->heads_only || opts->tags_only) { |
212 | if (opts->heads_only) | |
2e5c4758 PS |
213 | refs_for_each_fullref_in(get_main_ref_store(the_repository), |
214 | "refs/heads/", NULL, | |
215 | show_ref, &show_ref_data); | |
ee26f1e2 | 216 | if (opts->tags_only) |
2e5c4758 PS |
217 | refs_for_each_fullref_in(get_main_ref_store(the_repository), |
218 | "refs/tags/", NULL, show_ref, | |
219 | &show_ref_data); | |
b14cbae2 | 220 | } else { |
2e5c4758 PS |
221 | refs_for_each_ref(get_main_ref_store(the_repository), |
222 | show_ref, &show_ref_data); | |
b14cbae2 | 223 | } |
84650989 | 224 | if (!show_ref_data.found_match) |
b14cbae2 | 225 | return 1; |
b14cbae2 PS |
226 | |
227 | return 0; | |
228 | } | |
229 | ||
9080a7f1 PS |
230 | static int cmd_show_ref__exists(const char **refs) |
231 | { | |
232 | struct strbuf unused_referent = STRBUF_INIT; | |
233 | struct object_id unused_oid; | |
234 | unsigned int unused_type; | |
235 | int failure_errno = 0; | |
236 | const char *ref; | |
237 | int ret = 0; | |
238 | ||
239 | if (!refs || !*refs) | |
240 | die("--exists requires a reference"); | |
241 | ref = *refs++; | |
242 | if (*refs) | |
243 | die("--exists requires exactly one reference"); | |
244 | ||
245 | if (refs_read_raw_ref(get_main_ref_store(the_repository), ref, | |
246 | &unused_oid, &unused_referent, &unused_type, | |
247 | &failure_errno)) { | |
0aabeaa5 | 248 | if (failure_errno == ENOENT || failure_errno == EISDIR) { |
9080a7f1 PS |
249 | error(_("reference does not exist")); |
250 | ret = 2; | |
251 | } else { | |
252 | errno = failure_errno; | |
253 | error_errno(_("failed to look up reference")); | |
254 | ret = 1; | |
255 | } | |
256 | ||
257 | goto out; | |
258 | } | |
259 | ||
260 | out: | |
261 | strbuf_release(&unused_referent); | |
262 | return ret; | |
263 | } | |
264 | ||
69932bc6 SB |
265 | static int hash_callback(const struct option *opt, const char *arg, int unset) |
266 | { | |
b0f0be93 PS |
267 | struct show_one_options *opts = opt->value; |
268 | struct option abbrev_opt = *opt; | |
269 | ||
270 | opts->hash_only = 1; | |
69932bc6 SB |
271 | /* Use full length SHA1 if no argument */ |
272 | if (!arg) | |
273 | return 0; | |
b0f0be93 PS |
274 | |
275 | abbrev_opt.value = &opts->abbrev; | |
276 | return parse_opt_abbrev_cb(&abbrev_opt, arg, unset); | |
69932bc6 SB |
277 | } |
278 | ||
279 | static int exclude_existing_callback(const struct option *opt, const char *arg, | |
280 | int unset) | |
281 | { | |
7907fb0c | 282 | struct exclude_existing_options *opts = opt->value; |
517fe807 | 283 | BUG_ON_OPT_NEG(unset); |
7907fb0c PS |
284 | opts->enabled = 1; |
285 | opts->pattern = arg; | |
69932bc6 SB |
286 | return 0; |
287 | } | |
288 | ||
358ddb62 LT |
289 | int cmd_show_ref(int argc, const char **argv, const char *prefix) |
290 | { | |
7907fb0c | 291 | struct exclude_existing_options exclude_existing_opts = {0}; |
ee26f1e2 | 292 | struct patterns_options patterns_opts = {0}; |
b0f0be93 | 293 | struct show_one_options show_one_opts = {0}; |
9080a7f1 | 294 | int verify = 0, exists = 0; |
7907fb0c | 295 | const struct option show_ref_options[] = { |
ee26f1e2 PS |
296 | OPT_BOOL(0, "tags", &patterns_opts.tags_only, N_("only show tags (can be combined with heads)")), |
297 | OPT_BOOL(0, "heads", &patterns_opts.heads_only, N_("only show heads (can be combined with tags)")), | |
9080a7f1 | 298 | OPT_BOOL(0, "exists", &exists, N_("check for reference existence without resolving")), |
7907fb0c PS |
299 | OPT_BOOL(0, "verify", &verify, N_("stricter reference checking, " |
300 | "requires exact ref path")), | |
ee26f1e2 | 301 | OPT_HIDDEN_BOOL('h', NULL, &patterns_opts.show_head, |
7907fb0c | 302 | N_("show the HEAD reference, even if it would be filtered out")), |
ee26f1e2 | 303 | OPT_BOOL(0, "head", &patterns_opts.show_head, |
7907fb0c | 304 | N_("show the HEAD reference, even if it would be filtered out")), |
b0f0be93 | 305 | OPT_BOOL('d', "dereference", &show_one_opts.deref_tags, |
7907fb0c | 306 | N_("dereference tags into object IDs")), |
b0f0be93 | 307 | OPT_CALLBACK_F('s', "hash", &show_one_opts, N_("n"), |
7907fb0c PS |
308 | N_("only show SHA1 hash using <n> digits"), |
309 | PARSE_OPT_OPTARG, &hash_callback), | |
b0f0be93 PS |
310 | OPT__ABBREV(&show_one_opts.abbrev), |
311 | OPT__QUIET(&show_one_opts.quiet, | |
7907fb0c PS |
312 | N_("do not print results to stdout (useful with --verify)")), |
313 | OPT_CALLBACK_F(0, "exclude-existing", &exclude_existing_opts, | |
314 | N_("pattern"), N_("show refs from stdin that aren't in local repository"), | |
315 | PARSE_OPT_OPTARG | PARSE_OPT_NONEG, exclude_existing_callback), | |
316 | OPT_END() | |
317 | }; | |
318 | ||
8e712ef6 EN |
319 | git_config(git_default_config, NULL); |
320 | ||
69932bc6 | 321 | argc = parse_options(argc, argv, prefix, show_ref_options, |
42fdf86e | 322 | show_ref_usage, 0); |
358ddb62 | 323 | |
73824973 RS |
324 | die_for_incompatible_opt3(exclude_existing_opts.enabled, "--exclude-existing", |
325 | verify, "--verify", | |
326 | exists, "--exists"); | |
199970e7 | 327 | |
7907fb0c PS |
328 | if (exclude_existing_opts.enabled) |
329 | return cmd_show_ref__exclude_existing(&exclude_existing_opts); | |
b14cbae2 | 330 | else if (verify) |
b0f0be93 | 331 | return cmd_show_ref__verify(&show_one_opts, argv); |
9080a7f1 PS |
332 | else if (exists) |
333 | return cmd_show_ref__exists(argv); | |
b14cbae2 | 334 | else |
ee26f1e2 | 335 | return cmd_show_ref__patterns(&patterns_opts, &show_one_opts, argv); |
358ddb62 | 336 | } |