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Commit | Line | Data |
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8bc9a0c7 LT |
1 | /* |
2 | * GIT - The information manager from hell | |
3 | * | |
4 | * Copyright (C) Linus Torvalds, 2005 | |
5 | */ | |
f8adbec9 | 6 | #define USE_THE_INDEX_COMPATIBILITY_MACROS |
e83c5163 | 7 | #include "cache.h" |
b2141fc1 | 8 | #include "config.h" |
f81daefe | 9 | #include "builtin.h" |
3a35cb2e | 10 | #include "diff.h" |
15d8e565 | 11 | #include "parse-options.h" |
e5fba602 | 12 | #include "userdiff.h" |
00c8fd49 | 13 | #include "streaming.h" |
122d5346 | 14 | #include "tree-walk.h" |
fe299ec5 | 15 | #include "oid-array.h" |
7709f468 | 16 | #include "packfile.h" |
cbd53a21 | 17 | #include "object-store.h" |
b14ed5ad | 18 | #include "promisor-remote.h" |
15d8e565 | 19 | |
bfd15594 JK |
20 | struct batch_options { |
21 | int enabled; | |
22 | int follow_symlinks; | |
23 | int print_contents; | |
fc4937c3 | 24 | int buffer_output; |
6a951937 | 25 | int all_objects; |
0750bb5b | 26 | int unordered; |
32145943 | 27 | int cmdmode; /* may be 'w' or 'c' for --filters or --textconv */ |
bfd15594 JK |
28 | const char *format; |
29 | }; | |
30 | ||
7bcf3414 JS |
31 | static const char *force_path; |
32 | ||
b9e62f60 | 33 | static int filter_object(const char *path, unsigned mode, |
7889ed25 | 34 | const struct object_id *oid, |
b9e62f60 JS |
35 | char **buf, unsigned long *size) |
36 | { | |
37 | enum object_type type; | |
38 | ||
b4f5aca4 | 39 | *buf = read_object_file(oid, &type, size); |
b9e62f60 JS |
40 | if (!*buf) |
41 | return error(_("cannot read object %s '%s'"), | |
7889ed25 | 42 | oid_to_hex(oid), path); |
b9e62f60 JS |
43 | if ((type == OBJ_BLOB) && S_ISREG(mode)) { |
44 | struct strbuf strbuf = STRBUF_INIT; | |
c397aac0 | 45 | struct checkout_metadata meta; |
46 | ||
47 | init_checkout_metadata(&meta, NULL, NULL, oid); | |
48 | if (convert_to_working_tree(&the_index, path, *buf, *size, &strbuf, &meta)) { | |
b9e62f60 JS |
49 | free(*buf); |
50 | *size = strbuf.len; | |
51 | *buf = strbuf_detach(&strbuf, NULL); | |
52 | } | |
53 | } | |
54 | ||
55 | return 0; | |
56 | } | |
57 | ||
98f425b4 JK |
58 | static int stream_blob(const struct object_id *oid) |
59 | { | |
60 | if (stream_blob_to_fd(1, oid, NULL, 0)) | |
61 | die("unable to stream %s to stdout", oid_to_hex(oid)); | |
62 | return 0; | |
63 | } | |
64 | ||
39e4ae38 KN |
65 | static int cat_one_file(int opt, const char *exp_type, const char *obj_name, |
66 | int unknown_type) | |
e83c5163 | 67 | { |
63ecb99e | 68 | struct object_id oid; |
21666f1a | 69 | enum object_type type; |
e5fba602 | 70 | char *buf; |
e83c5163 | 71 | unsigned long size; |
e5fba602 | 72 | struct object_context obj_context; |
27b5c1a0 | 73 | struct object_info oi = OBJECT_INFO_INIT; |
39e4ae38 | 74 | struct strbuf sb = STRBUF_INIT; |
1f0c0d36 | 75 | unsigned flags = OBJECT_INFO_LOOKUP_REPLACE; |
245b9488 | 76 | unsigned get_oid_flags = GET_OID_RECORD_PATH | GET_OID_ONLY_TO_DIE; |
7bcf3414 | 77 | const char *path = force_path; |
245b9488 ÆAB |
78 | const int opt_cw = (opt == 'c' || opt == 'w'); |
79 | if (!path && opt_cw) | |
80 | get_oid_flags |= GET_OID_REQUIRE_PATH; | |
39e4ae38 KN |
81 | |
82 | if (unknown_type) | |
19fc5e84 | 83 | flags |= OBJECT_INFO_ALLOW_UNKNOWN_TYPE; |
2b6854c8 | 84 | |
245b9488 ÆAB |
85 | if (get_oid_with_context(the_repository, obj_name, get_oid_flags, &oid, |
86 | &obj_context)) | |
2b6854c8 | 87 | die("Not a valid object name %s", obj_name); |
7950571a | 88 | |
7bcf3414 JS |
89 | if (!path) |
90 | path = obj_context.path; | |
91 | if (obj_context.mode == S_IFINVALID) | |
92 | obj_context.mode = 0100644; | |
93 | ||
7950571a PA |
94 | buf = NULL; |
95 | switch (opt) { | |
96 | case 't': | |
6ca32f47 | 97 | oi.type_name = &sb; |
7ecd8690 | 98 | if (oid_object_info_extended(the_repository, &oid, &oi, flags) < 0) |
39e4ae38 KN |
99 | die("git cat-file: could not get object info"); |
100 | if (sb.len) { | |
101 | printf("%s\n", sb.buf); | |
102 | strbuf_release(&sb); | |
f2a06330 | 103 | return 0; |
11e7d5c5 | 104 | } |
7950571a PA |
105 | break; |
106 | ||
107 | case 's': | |
39e4ae38 | 108 | oi.sizep = &size; |
7ecd8690 | 109 | if (oid_object_info_extended(the_repository, &oid, &oi, flags) < 0) |
39e4ae38 | 110 | die("git cat-file: could not get object info"); |
ca473cef | 111 | printf("%"PRIuMAX"\n", (uintmax_t)size); |
39e4ae38 | 112 | return 0; |
7950571a PA |
113 | |
114 | case 'e': | |
63ecb99e | 115 | return !has_object_file(&oid); |
7950571a | 116 | |
b9e62f60 | 117 | case 'w': |
b9e62f60 | 118 | |
7bcf3414 | 119 | if (filter_object(path, obj_context.mode, |
7889ed25 | 120 | &oid, &buf, &size)) |
b9e62f60 JS |
121 | return -1; |
122 | break; | |
123 | ||
3ac21617 | 124 | case 'c': |
6afaf807 NTND |
125 | if (textconv_object(the_repository, path, obj_context.mode, |
126 | &oid, 1, &buf, &size)) | |
3ac21617 | 127 | break; |
1cf01a34 | 128 | /* else fallthrough */ |
3ac21617 | 129 | |
a0f15fa5 | 130 | case 'p': |
0df8e965 | 131 | type = oid_object_info(the_repository, &oid, NULL); |
21666f1a | 132 | if (type < 0) |
2b6854c8 | 133 | die("Not a valid object name %s", obj_name); |
a0f15fa5 JH |
134 | |
135 | /* custom pretty-print here */ | |
2b6854c8 | 136 | if (type == OBJ_TREE) { |
66dbfd55 GV |
137 | const char *ls_args[3] = { NULL }; |
138 | ls_args[0] = "ls-tree"; | |
139 | ls_args[1] = obj_name; | |
2b6854c8 SP |
140 | return cmd_ls_tree(2, ls_args, NULL); |
141 | } | |
a0f15fa5 | 142 | |
00c8fd49 | 143 | if (type == OBJ_BLOB) |
98f425b4 | 144 | return stream_blob(&oid); |
b4f5aca4 | 145 | buf = read_object_file(&oid, &type, &size); |
a0f15fa5 | 146 | if (!buf) |
2b6854c8 | 147 | die("Cannot read object %s", obj_name); |
a0f15fa5 JH |
148 | |
149 | /* otherwise just spit out the data */ | |
150 | break; | |
e5fba602 | 151 | |
7950571a | 152 | case 0: |
00c8fd49 | 153 | if (type_from_string(exp_type) == OBJ_BLOB) { |
63ecb99e | 154 | struct object_id blob_oid; |
0df8e965 | 155 | if (oid_object_info(the_repository, &oid, NULL) == OBJ_TAG) { |
b4f5aca4 | 156 | char *buffer = read_object_file(&oid, &type, |
157 | &size); | |
e3f1da98 RS |
158 | const char *target; |
159 | if (!skip_prefix(buffer, "object ", &target) || | |
63ecb99e | 160 | get_oid_hex(target, &blob_oid)) |
161 | die("%s not a valid tag", oid_to_hex(&oid)); | |
00c8fd49 NTND |
162 | free(buffer); |
163 | } else | |
63ecb99e | 164 | oidcpy(&blob_oid, &oid); |
00c8fd49 | 165 | |
0df8e965 | 166 | if (oid_object_info(the_repository, &blob_oid, NULL) == OBJ_BLOB) |
98f425b4 | 167 | return stream_blob(&blob_oid); |
00c8fd49 NTND |
168 | /* |
169 | * we attempted to dereference a tag to a blob | |
170 | * and failed; there may be new dereference | |
171 | * mechanisms this code is not aware of. | |
172 | * fall-back to the usual case. | |
173 | */ | |
174 | } | |
d3b4705a NTND |
175 | buf = read_object_with_reference(the_repository, |
176 | &oid, exp_type, &size, NULL); | |
7950571a PA |
177 | break; |
178 | ||
179 | default: | |
d7530708 | 180 | die("git cat-file: unknown option: %s", exp_type); |
bf0c6e83 LT |
181 | } |
182 | ||
11e7d5c5 | 183 | if (!buf) |
34baebce | 184 | die("git cat-file %s: bad file", obj_name); |
11e7d5c5 | 185 | |
7230e6d0 | 186 | write_or_die(1, buf, size); |
05c2b7ba | 187 | free(buf); |
dc944b65 | 188 | free(obj_context.path); |
bf0c6e83 | 189 | return 0; |
e83c5163 | 190 | } |
9cf71b17 | 191 | |
93d2a607 | 192 | struct expand_data { |
cd4f77be | 193 | struct object_id oid; |
93d2a607 JK |
194 | enum object_type type; |
195 | unsigned long size; | |
166df26f | 196 | off_t disk_size; |
97be0407 | 197 | const char *rest; |
cd4f77be | 198 | struct object_id delta_base_oid; |
93d2a607 JK |
199 | |
200 | /* | |
201 | * If mark_query is true, we do not expand anything, but rather | |
202 | * just mark the object_info with items we wish to query. | |
203 | */ | |
204 | int mark_query; | |
205 | ||
97be0407 JK |
206 | /* |
207 | * Whether to split the input on whitespace before feeding it to | |
208 | * get_sha1; this is decided during the mark_query phase based on | |
209 | * whether we have a %(rest) token in our format. | |
210 | */ | |
211 | int split_on_whitespace; | |
212 | ||
93d2a607 JK |
213 | /* |
214 | * After a mark_query run, this object_info is set up to be | |
c93206b4 | 215 | * passed to oid_object_info_extended. It will point to the data |
93d2a607 JK |
216 | * elements above, so you can retrieve the response from there. |
217 | */ | |
218 | struct object_info info; | |
845de33a JK |
219 | |
220 | /* | |
221 | * This flag will be true if the requested batch format and options | |
c93206b4 | 222 | * don't require us to call oid_object_info, which can then be |
845de33a JK |
223 | * optimized out. |
224 | */ | |
225 | unsigned skip_object_info : 1; | |
93d2a607 JK |
226 | }; |
227 | ||
228 | static int is_atom(const char *atom, const char *s, int slen) | |
229 | { | |
230 | int alen = strlen(atom); | |
231 | return alen == slen && !memcmp(atom, s, alen); | |
232 | } | |
233 | ||
234 | static void expand_atom(struct strbuf *sb, const char *atom, int len, | |
235 | void *vdata) | |
236 | { | |
237 | struct expand_data *data = vdata; | |
238 | ||
239 | if (is_atom("objectname", atom, len)) { | |
240 | if (!data->mark_query) | |
cd4f77be | 241 | strbuf_addstr(sb, oid_to_hex(&data->oid)); |
93d2a607 | 242 | } else if (is_atom("objecttype", atom, len)) { |
5b086407 JK |
243 | if (data->mark_query) |
244 | data->info.typep = &data->type; | |
245 | else | |
debca9d2 | 246 | strbuf_addstr(sb, type_name(data->type)); |
93d2a607 JK |
247 | } else if (is_atom("objectsize", atom, len)) { |
248 | if (data->mark_query) | |
249 | data->info.sizep = &data->size; | |
250 | else | |
ca473cef | 251 | strbuf_addf(sb, "%"PRIuMAX , (uintmax_t)data->size); |
a4ac1061 JK |
252 | } else if (is_atom("objectsize:disk", atom, len)) { |
253 | if (data->mark_query) | |
254 | data->info.disk_sizep = &data->disk_size; | |
255 | else | |
166df26f | 256 | strbuf_addf(sb, "%"PRIuMAX, (uintmax_t)data->disk_size); |
97be0407 JK |
257 | } else if (is_atom("rest", atom, len)) { |
258 | if (data->mark_query) | |
259 | data->split_on_whitespace = 1; | |
260 | else if (data->rest) | |
261 | strbuf_addstr(sb, data->rest); | |
65ea9c3c JK |
262 | } else if (is_atom("deltabase", atom, len)) { |
263 | if (data->mark_query) | |
b99b6bcc | 264 | data->info.delta_base_oid = &data->delta_base_oid; |
65ea9c3c | 265 | else |
cd4f77be | 266 | strbuf_addstr(sb, |
267 | oid_to_hex(&data->delta_base_oid)); | |
93d2a607 JK |
268 | } else |
269 | die("unknown format element: %.*s", len, atom); | |
270 | } | |
271 | ||
272 | static size_t expand_format(struct strbuf *sb, const char *start, void *data) | |
273 | { | |
274 | const char *end; | |
275 | ||
276 | if (*start != '(') | |
277 | return 0; | |
278 | end = strchr(start + 1, ')'); | |
279 | if (!end) | |
280 | die("format element '%s' does not end in ')'", start); | |
281 | ||
282 | expand_atom(sb, start + 1, end - start - 1, data); | |
283 | ||
284 | return end - start + 1; | |
285 | } | |
286 | ||
fc4937c3 JK |
287 | static void batch_write(struct batch_options *opt, const void *data, int len) |
288 | { | |
289 | if (opt->buffer_output) { | |
290 | if (fwrite(data, 1, len, stdout) != len) | |
291 | die_errno("unable to write to stdout"); | |
292 | } else | |
293 | write_or_die(1, data, len); | |
294 | } | |
295 | ||
296 | static void print_object_or_die(struct batch_options *opt, struct expand_data *data) | |
98e2092b | 297 | { |
63ecb99e | 298 | const struct object_id *oid = &data->oid; |
370c9268 | 299 | |
6554dfa9 JK |
300 | assert(data->info.typep); |
301 | ||
370c9268 | 302 | if (data->type == OBJ_BLOB) { |
fc4937c3 JK |
303 | if (opt->buffer_output) |
304 | fflush(stdout); | |
32145943 JS |
305 | if (opt->cmdmode) { |
306 | char *contents; | |
307 | unsigned long size; | |
308 | ||
309 | if (!data->rest) | |
7889ed25 | 310 | die("missing path for '%s'", oid_to_hex(oid)); |
32145943 JS |
311 | |
312 | if (opt->cmdmode == 'w') { | |
7889ed25 | 313 | if (filter_object(data->rest, 0100644, oid, |
32145943 JS |
314 | &contents, &size)) |
315 | die("could not convert '%s' %s", | |
7889ed25 | 316 | oid_to_hex(oid), data->rest); |
32145943 JS |
317 | } else if (opt->cmdmode == 'c') { |
318 | enum object_type type; | |
6afaf807 NTND |
319 | if (!textconv_object(the_repository, |
320 | data->rest, 0100644, oid, | |
32145943 | 321 | 1, &contents, &size)) |
b4f5aca4 | 322 | contents = read_object_file(oid, |
323 | &type, | |
324 | &size); | |
32145943 JS |
325 | if (!contents) |
326 | die("could not convert '%s' %s", | |
7889ed25 | 327 | oid_to_hex(oid), data->rest); |
32145943 | 328 | } else |
033abf97 | 329 | BUG("invalid cmdmode: %c", opt->cmdmode); |
32145943 JS |
330 | batch_write(opt, contents, size); |
331 | free(contents); | |
98f425b4 JK |
332 | } else { |
333 | stream_blob(oid); | |
334 | } | |
98e2092b JK |
335 | } |
336 | else { | |
370c9268 JK |
337 | enum object_type type; |
338 | unsigned long size; | |
98e2092b JK |
339 | void *contents; |
340 | ||
b4f5aca4 | 341 | contents = read_object_file(oid, &type, &size); |
98e2092b | 342 | if (!contents) |
63ecb99e | 343 | die("object %s disappeared", oid_to_hex(oid)); |
370c9268 | 344 | if (type != data->type) |
63ecb99e | 345 | die("object %s changed type!?", oid_to_hex(oid)); |
6554dfa9 | 346 | if (data->info.sizep && size != data->size) |
63ecb99e | 347 | die("object %s changed size!?", oid_to_hex(oid)); |
98e2092b | 348 | |
fc4937c3 | 349 | batch_write(opt, contents, size); |
98e2092b JK |
350 | free(contents); |
351 | } | |
352 | } | |
353 | ||
bf972896 JK |
354 | /* |
355 | * If "pack" is non-NULL, then "offset" is the byte offset within the pack from | |
356 | * which the object may be accessed (though note that we may also rely on | |
357 | * data->oid, too). If "pack" is NULL, then offset is ignored. | |
358 | */ | |
79ed0a5e JK |
359 | static void batch_object_write(const char *obj_name, |
360 | struct strbuf *scratch, | |
361 | struct batch_options *opt, | |
bf972896 JK |
362 | struct expand_data *data, |
363 | struct packed_git *pack, | |
364 | off_t offset) | |
44b877e9 | 365 | { |
bf972896 JK |
366 | if (!data->skip_object_info) { |
367 | int ret; | |
368 | ||
369 | if (pack) | |
370 | ret = packed_object_info(the_repository, pack, offset, | |
371 | &data->info); | |
372 | else | |
373 | ret = oid_object_info_extended(the_repository, | |
374 | &data->oid, &data->info, | |
375 | OBJECT_INFO_LOOKUP_REPLACE); | |
376 | if (ret < 0) { | |
377 | printf("%s missing\n", | |
378 | obj_name ? obj_name : oid_to_hex(&data->oid)); | |
379 | fflush(stdout); | |
380 | return; | |
381 | } | |
44b877e9 JK |
382 | } |
383 | ||
79ed0a5e JK |
384 | strbuf_reset(scratch); |
385 | strbuf_expand(scratch, opt->format, expand_format, data); | |
386 | strbuf_addch(scratch, '\n'); | |
387 | batch_write(opt, scratch->buf, scratch->len); | |
44b877e9 JK |
388 | |
389 | if (opt->print_contents) { | |
390 | print_object_or_die(opt, data); | |
391 | batch_write(opt, "\n", 1); | |
392 | } | |
393 | } | |
394 | ||
79ed0a5e JK |
395 | static void batch_one_object(const char *obj_name, |
396 | struct strbuf *scratch, | |
397 | struct batch_options *opt, | |
82330950 | 398 | struct expand_data *data) |
05d5667f | 399 | { |
122d5346 | 400 | struct object_context ctx; |
321c89bf | 401 | int flags = opt->follow_symlinks ? GET_OID_FOLLOW_SYMLINKS : 0; |
d1dd94b3 | 402 | enum get_oid_result result; |
05d5667f | 403 | |
3a7a698e NTND |
404 | result = get_oid_with_context(the_repository, obj_name, |
405 | flags, &data->oid, &ctx); | |
122d5346 DT |
406 | if (result != FOUND) { |
407 | switch (result) { | |
408 | case MISSING_OBJECT: | |
409 | printf("%s missing\n", obj_name); | |
410 | break; | |
d1dd94b3 DT |
411 | case SHORT_NAME_AMBIGUOUS: |
412 | printf("%s ambiguous\n", obj_name); | |
413 | break; | |
122d5346 DT |
414 | case DANGLING_SYMLINK: |
415 | printf("dangling %"PRIuMAX"\n%s\n", | |
416 | (uintmax_t)strlen(obj_name), obj_name); | |
417 | break; | |
418 | case SYMLINK_LOOP: | |
419 | printf("loop %"PRIuMAX"\n%s\n", | |
420 | (uintmax_t)strlen(obj_name), obj_name); | |
421 | break; | |
422 | case NOT_DIR: | |
423 | printf("notdir %"PRIuMAX"\n%s\n", | |
424 | (uintmax_t)strlen(obj_name), obj_name); | |
425 | break; | |
426 | default: | |
033abf97 | 427 | BUG("unknown get_sha1_with_context result %d\n", |
122d5346 DT |
428 | result); |
429 | break; | |
430 | } | |
431 | fflush(stdout); | |
82330950 | 432 | return; |
122d5346 DT |
433 | } |
434 | ||
435 | if (ctx.mode == 0) { | |
436 | printf("symlink %"PRIuMAX"\n%s\n", | |
437 | (uintmax_t)ctx.symlink_path.len, | |
438 | ctx.symlink_path.buf); | |
422b2063 | 439 | fflush(stdout); |
82330950 | 440 | return; |
05d5667f AR |
441 | } |
442 | ||
bf972896 | 443 | batch_object_write(obj_name, scratch, opt, data, NULL, 0); |
05d5667f AR |
444 | } |
445 | ||
6a951937 JK |
446 | struct object_cb_data { |
447 | struct batch_options *opt; | |
448 | struct expand_data *expand; | |
0750bb5b | 449 | struct oidset *seen; |
79ed0a5e | 450 | struct strbuf *scratch; |
6a951937 JK |
451 | }; |
452 | ||
1b7ba794 | 453 | static int batch_object_cb(const struct object_id *oid, void *vdata) |
6a951937 | 454 | { |
3115ee45 | 455 | struct object_cb_data *data = vdata; |
1b7ba794 | 456 | oidcpy(&data->expand->oid, oid); |
bf972896 JK |
457 | batch_object_write(NULL, data->scratch, data->opt, data->expand, |
458 | NULL, 0); | |
16ddcd40 | 459 | return 0; |
6a951937 JK |
460 | } |
461 | ||
b1adb384 JK |
462 | static int collect_loose_object(const struct object_id *oid, |
463 | const char *path, | |
464 | void *data) | |
6a951937 | 465 | { |
910650d2 | 466 | oid_array_append(data, oid); |
3115ee45 | 467 | return 0; |
6a951937 JK |
468 | } |
469 | ||
b1adb384 JK |
470 | static int collect_packed_object(const struct object_id *oid, |
471 | struct packed_git *pack, | |
472 | uint32_t pos, | |
473 | void *data) | |
6a951937 | 474 | { |
910650d2 | 475 | oid_array_append(data, oid); |
3115ee45 | 476 | return 0; |
6a951937 JK |
477 | } |
478 | ||
bf972896 JK |
479 | static int batch_unordered_object(const struct object_id *oid, |
480 | struct packed_git *pack, off_t offset, | |
481 | void *vdata) | |
0750bb5b JK |
482 | { |
483 | struct object_cb_data *data = vdata; | |
484 | ||
ced9fff7 | 485 | if (oidset_insert(data->seen, oid)) |
0750bb5b | 486 | return 0; |
0750bb5b | 487 | |
818e3930 | 488 | oidcpy(&data->expand->oid, oid); |
bf972896 JK |
489 | batch_object_write(NULL, data->scratch, data->opt, data->expand, |
490 | pack, offset); | |
818e3930 | 491 | return 0; |
0750bb5b JK |
492 | } |
493 | ||
494 | static int batch_unordered_loose(const struct object_id *oid, | |
495 | const char *path, | |
496 | void *data) | |
497 | { | |
bf972896 | 498 | return batch_unordered_object(oid, NULL, 0, data); |
0750bb5b JK |
499 | } |
500 | ||
501 | static int batch_unordered_packed(const struct object_id *oid, | |
502 | struct packed_git *pack, | |
503 | uint32_t pos, | |
504 | void *data) | |
505 | { | |
bf972896 JK |
506 | return batch_unordered_object(oid, pack, |
507 | nth_packed_object_offset(pack, pos), | |
508 | data); | |
0750bb5b JK |
509 | } |
510 | ||
b71bd480 | 511 | static int batch_objects(struct batch_options *opt) |
05d5667f | 512 | { |
54d2f0d9 JK |
513 | struct strbuf input = STRBUF_INIT; |
514 | struct strbuf output = STRBUF_INIT; | |
93d2a607 | 515 | struct expand_data data; |
a42fcd15 | 516 | int save_warning; |
07e23839 | 517 | int retval = 0; |
93d2a607 JK |
518 | |
519 | if (!opt->format) | |
520 | opt->format = "%(objectname) %(objecttype) %(objectsize)"; | |
521 | ||
522 | /* | |
523 | * Expand once with our special mark_query flag, which will prime the | |
c93206b4 | 524 | * object_info to be handed to oid_object_info_extended for each |
93d2a607 JK |
525 | * object. |
526 | */ | |
527 | memset(&data, 0, sizeof(data)); | |
528 | data.mark_query = 1; | |
54d2f0d9 | 529 | strbuf_expand(&output, opt->format, expand_format, &data); |
93d2a607 | 530 | data.mark_query = 0; |
54d2f0d9 | 531 | strbuf_release(&output); |
32145943 JS |
532 | if (opt->cmdmode) |
533 | data.split_on_whitespace = 1; | |
05d5667f | 534 | |
6554dfa9 JK |
535 | /* |
536 | * If we are printing out the object, then always fill in the type, | |
537 | * since we will want to decide whether or not to stream. | |
538 | */ | |
539 | if (opt->print_contents) | |
540 | data.info.typep = &data.type; | |
541 | ||
e16acc80 | 542 | if (opt->all_objects) { |
ee02ac61 | 543 | struct object_cb_data cb; |
e16acc80 ZH |
544 | struct object_info empty = OBJECT_INFO_INIT; |
545 | ||
546 | if (!memcmp(&data.info, &empty, sizeof(empty))) | |
547 | data.skip_object_info = 1; | |
3115ee45 | 548 | |
b14ed5ad CC |
549 | if (has_promisor_remote()) |
550 | warning("This repository uses promisor remotes. Some objects may not be loaded."); | |
3115ee45 | 551 | |
5c5b29b4 JK |
552 | read_replace_refs = 0; |
553 | ||
6a951937 JK |
554 | cb.opt = opt; |
555 | cb.expand = &data; | |
79ed0a5e | 556 | cb.scratch = &output; |
3115ee45 | 557 | |
0750bb5b JK |
558 | if (opt->unordered) { |
559 | struct oidset seen = OIDSET_INIT; | |
560 | ||
561 | cb.seen = &seen; | |
562 | ||
563 | for_each_loose_object(batch_unordered_loose, &cb, 0); | |
564 | for_each_packed_object(batch_unordered_packed, &cb, | |
565 | FOR_EACH_OBJECT_PACK_ORDER); | |
566 | ||
567 | oidset_clear(&seen); | |
568 | } else { | |
569 | struct oid_array sa = OID_ARRAY_INIT; | |
570 | ||
571 | for_each_loose_object(collect_loose_object, &sa, 0); | |
572 | for_each_packed_object(collect_packed_object, &sa, 0); | |
573 | ||
574 | oid_array_for_each_unique(&sa, batch_object_cb, &cb); | |
575 | ||
576 | oid_array_clear(&sa); | |
577 | } | |
578 | ||
79ed0a5e | 579 | strbuf_release(&output); |
6a951937 JK |
580 | return 0; |
581 | } | |
582 | ||
25fba78d JK |
583 | /* |
584 | * We are going to call get_sha1 on a potentially very large number of | |
585 | * objects. In most large cases, these will be actual object sha1s. The | |
586 | * cost to double-check that each one is not also a ref (just so we can | |
587 | * warn) ends up dwarfing the actual cost of the object lookups | |
588 | * themselves. We can work around it by just turning off the warning. | |
589 | */ | |
a42fcd15 | 590 | save_warning = warn_on_object_refname_ambiguity; |
25fba78d JK |
591 | warn_on_object_refname_ambiguity = 0; |
592 | ||
54d2f0d9 | 593 | while (strbuf_getline(&input, stdin) != EOF) { |
97be0407 JK |
594 | if (data.split_on_whitespace) { |
595 | /* | |
596 | * Split at first whitespace, tying off the beginning | |
597 | * of the string and saving the remainder (or NULL) in | |
598 | * data.rest. | |
599 | */ | |
54d2f0d9 | 600 | char *p = strpbrk(input.buf, " \t"); |
97be0407 JK |
601 | if (p) { |
602 | while (*p && strchr(" \t", *p)) | |
603 | *p++ = '\0'; | |
604 | } | |
605 | data.rest = p; | |
606 | } | |
607 | ||
79ed0a5e | 608 | batch_one_object(input.buf, &output, opt, &data); |
05d5667f AR |
609 | } |
610 | ||
54d2f0d9 | 611 | strbuf_release(&input); |
79ed0a5e | 612 | strbuf_release(&output); |
a42fcd15 | 613 | warn_on_object_refname_ambiguity = save_warning; |
07e23839 | 614 | return retval; |
05d5667f AR |
615 | } |
616 | ||
e5fba602 CP |
617 | static int git_cat_file_config(const char *var, const char *value, void *cb) |
618 | { | |
6680a087 | 619 | if (userdiff_config(var, value) < 0) |
e5fba602 | 620 | return -1; |
e5fba602 CP |
621 | |
622 | return git_default_config(var, value, cb); | |
623 | } | |
624 | ||
b71bd480 JK |
625 | static int batch_option_callback(const struct option *opt, |
626 | const char *arg, | |
627 | int unset) | |
628 | { | |
629 | struct batch_options *bo = opt->value; | |
630 | ||
517fe807 JK |
631 | BUG_ON_OPT_NEG(unset); |
632 | ||
122d5346 | 633 | if (bo->enabled) { |
0eb8d376 | 634 | return error(_("only one batch option may be specified")); |
b71bd480 JK |
635 | } |
636 | ||
637 | bo->enabled = 1; | |
638 | bo->print_contents = !strcmp(opt->long_name, "batch"); | |
93d2a607 | 639 | bo->format = arg; |
b71bd480 JK |
640 | |
641 | return 0; | |
642 | } | |
643 | ||
9cf71b17 AR |
644 | int cmd_cat_file(int argc, const char **argv, const char *prefix) |
645 | { | |
b71bd480 | 646 | int opt = 0; |
b3fe4680 ÆAB |
647 | int opt_cw = 0; |
648 | int opt_epts = 0; | |
4814dbe8 | 649 | const char *exp_type = NULL, *obj_name = NULL; |
b71bd480 | 650 | struct batch_options batch = {0}; |
39e4ae38 | 651 | int unknown_type = 0; |
9cf71b17 | 652 | |
5a404178 ÆAB |
653 | const char * const usage[] = { |
654 | N_("git cat-file <type> <object>"), | |
655 | N_("git cat-file (-e | -p) <object>"), | |
83dc4434 | 656 | N_("git cat-file (-t | -s) [--allow-unknown-type] <object>"), |
5a404178 ÆAB |
657 | N_("git cat-file (--batch | --batch-check) [--batch-all-objects]\n" |
658 | " [--buffer] [--follow-symlinks] [--unordered]\n" | |
659 | " [--textconv | --filters]"), | |
83dc4434 | 660 | N_("git cat-file (--textconv | --filters)\n" |
5a404178 ÆAB |
661 | " [<rev>:<path|tree-ish> | --path=<path|tree-ish> <rev>]"), |
662 | NULL | |
663 | }; | |
15d8e565 | 664 | const struct option options[] = { |
57d6a1cf ÆAB |
665 | /* Simple queries */ |
666 | OPT_GROUP(N_("Check object existence or emit object contents")), | |
b48158ac | 667 | OPT_CMDMODE('e', NULL, &opt, |
57d6a1cf ÆAB |
668 | N_("check if <object> exists"), 'e'), |
669 | OPT_CMDMODE('p', NULL, &opt, N_("pretty-print <object> content"), 'p'), | |
670 | ||
671 | OPT_GROUP(N_("Emit [broken] object attributes")), | |
672 | OPT_CMDMODE('t', NULL, &opt, N_("show object type (one of 'blob', 'tree', 'commit', 'tag', ...)"), 't'), | |
673 | OPT_CMDMODE('s', NULL, &opt, N_("show object size"), 's'), | |
ad42f28d | 674 | OPT_BOOL(0, "allow-unknown-type", &unknown_type, |
39e4ae38 | 675 | N_("allow -s and -t to work with broken/corrupt objects")), |
57d6a1cf ÆAB |
676 | /* Batch mode */ |
677 | OPT_GROUP(N_("Batch objects requested on stdin (or --batch-all-objects)")), | |
678 | OPT_CALLBACK_F(0, "batch", &batch, N_("format"), | |
679 | N_("show full <object> or <rev> contents"), | |
0ad1efb4 | 680 | PARSE_OPT_OPTARG | PARSE_OPT_NONEG, |
203c8533 | 681 | batch_option_callback), |
57d6a1cf ÆAB |
682 | OPT_CALLBACK_F(0, "batch-check", &batch, N_("format"), |
683 | N_("like --batch, but don't emit <contents>"), | |
0ad1efb4 | 684 | PARSE_OPT_OPTARG | PARSE_OPT_NONEG, |
203c8533 | 685 | batch_option_callback), |
57d6a1cf ÆAB |
686 | OPT_CMDMODE(0, "batch-all-objects", &opt, |
687 | N_("with --batch[-check]: ignores stdin, batches all known objects"), 'b'), | |
688 | /* Batch-specific options */ | |
689 | OPT_GROUP(N_("Change or optimize batch output")), | |
690 | OPT_BOOL(0, "buffer", &batch.buffer_output, N_("buffer --batch output")), | |
122d5346 | 691 | OPT_BOOL(0, "follow-symlinks", &batch.follow_symlinks, |
57d6a1cf | 692 | N_("follow in-tree symlinks")), |
0750bb5b | 693 | OPT_BOOL(0, "unordered", &batch.unordered, |
57d6a1cf ÆAB |
694 | N_("do not order objects before emitting them")), |
695 | /* Textconv options, stand-ole*/ | |
696 | OPT_GROUP(N_("Emit object (blob or tree) with conversion or filter (stand-alone, or with batch)")), | |
697 | OPT_CMDMODE(0, "textconv", &opt, | |
698 | N_("run textconv on object's content"), 'c'), | |
699 | OPT_CMDMODE(0, "filters", &opt, | |
700 | N_("run filters on object's content"), 'w'), | |
701 | OPT_STRING(0, "path", &force_path, N_("blob|tree"), | |
83dc4434 | 702 | N_("use a <path> for (--textconv | --filters); Not with 'batch'")), |
15d8e565 MB |
703 | OPT_END() |
704 | }; | |
a8128ed6 | 705 | |
e5fba602 | 706 | git_config(git_cat_file_config, NULL); |
4814dbe8 | 707 | |
6a36e1e7 | 708 | batch.buffer_output = -1; |
05d5667f | 709 | |
485fd2c3 | 710 | argc = parse_options(argc, argv, prefix, options, usage, 0); |
b3fe4680 ÆAB |
711 | opt_cw = (opt == 'c' || opt == 'w'); |
712 | opt_epts = (opt == 'e' || opt == 'p' || opt == 't' || opt == 's'); | |
9cf71b17 | 713 | |
b3fe4680 ÆAB |
714 | /* --batch-all-objects? */ |
715 | if (opt == 'b') | |
716 | batch.all_objects = 1; | |
7bcf3414 | 717 | |
b3fe4680 ÆAB |
718 | /* Option compatibility */ |
719 | if (force_path && !opt_cw) | |
720 | usage_msg_optf(_("'%s=<%s>' needs '%s' or '%s'"), | |
721 | usage, options, | |
722 | "--path", _("path|tree-ish"), "--filters", | |
723 | "--textconv"); | |
32145943 | 724 | |
b3fe4680 ÆAB |
725 | /* Option compatibility with batch mode */ |
726 | if (batch.enabled) | |
727 | ; | |
728 | else if (batch.follow_symlinks) | |
729 | usage_msg_optf(_("'%s' requires a batch mode"), usage, options, | |
5fb24902 | 730 | "--follow-symlinks"); |
b3fe4680 ÆAB |
731 | else if (batch.buffer_output >= 0) |
732 | usage_msg_optf(_("'%s' requires a batch mode"), usage, options, | |
733 | "--buffer"); | |
734 | else if (batch.all_objects) | |
735 | usage_msg_optf(_("'%s' requires a batch mode"), usage, options, | |
736 | "--batch-all-objects"); | |
737 | ||
738 | /* Batch defaults */ | |
6a36e1e7 JK |
739 | if (batch.buffer_output < 0) |
740 | batch.buffer_output = batch.all_objects; | |
741 | ||
b3fe4680 ÆAB |
742 | /* Return early if we're in batch mode? */ |
743 | if (batch.enabled) { | |
744 | if (opt_cw) | |
745 | batch.cmdmode = opt; | |
746 | else if (opt && opt != 'b') | |
747 | usage_msg_optf(_("'-%c' is incompatible with batch mode"), | |
748 | usage, options, opt); | |
749 | else if (argc) | |
750 | usage_msg_opt(_("batch modes take no arguments"), usage, | |
751 | options); | |
752 | ||
b71bd480 | 753 | return batch_objects(&batch); |
b3fe4680 ÆAB |
754 | } |
755 | ||
756 | if (opt) { | |
757 | if (!argc && opt == 'c') | |
758 | usage_msg_optf(_("<rev> required with '%s'"), | |
759 | usage, options, "--textconv"); | |
760 | else if (!argc && opt == 'w') | |
761 | usage_msg_optf(_("<rev> required with '%s'"), | |
762 | usage, options, "--filters"); | |
763 | else if (!argc && opt_epts) | |
764 | usage_msg_optf(_("<object> required with '-%c'"), | |
765 | usage, options, opt); | |
766 | else if (argc == 1) | |
767 | obj_name = argv[0]; | |
768 | else | |
769 | usage_msg_opt(_("too many arguments"), usage, options); | |
770 | } else if (!argc) { | |
771 | usage_with_options(usage, options); | |
772 | } else if (argc != 2) { | |
773 | usage_msg_optf(_("only two arguments allowed in <type> <object> mode, not %d"), | |
774 | usage, options, argc); | |
775 | } else if (argc) { | |
776 | exp_type = argv[0]; | |
777 | obj_name = argv[1]; | |
778 | } | |
05d5667f | 779 | |
39e4ae38 KN |
780 | if (unknown_type && opt != 't' && opt != 's') |
781 | die("git cat-file --allow-unknown-type: use with -s or -t"); | |
782 | return cat_one_file(opt, exp_type, obj_name, unknown_type); | |
9cf71b17 | 783 | } |