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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; |
7bcf3414 | 76 | const char *path = force_path; |
39e4ae38 KN |
77 | |
78 | if (unknown_type) | |
19fc5e84 | 79 | flags |= OBJECT_INFO_ALLOW_UNKNOWN_TYPE; |
2b6854c8 | 80 | |
3a7a698e NTND |
81 | if (get_oid_with_context(the_repository, obj_name, |
82 | GET_OID_RECORD_PATH, | |
e82caf38 | 83 | &oid, &obj_context)) |
2b6854c8 | 84 | die("Not a valid object name %s", obj_name); |
7950571a | 85 | |
7bcf3414 JS |
86 | if (!path) |
87 | path = obj_context.path; | |
88 | if (obj_context.mode == S_IFINVALID) | |
89 | obj_context.mode = 0100644; | |
90 | ||
7950571a PA |
91 | buf = NULL; |
92 | switch (opt) { | |
93 | case 't': | |
6ca32f47 | 94 | oi.type_name = &sb; |
7ecd8690 | 95 | if (oid_object_info_extended(the_repository, &oid, &oi, flags) < 0) |
39e4ae38 KN |
96 | die("git cat-file: could not get object info"); |
97 | if (sb.len) { | |
98 | printf("%s\n", sb.buf); | |
99 | strbuf_release(&sb); | |
f2a06330 | 100 | return 0; |
11e7d5c5 | 101 | } |
7950571a PA |
102 | break; |
103 | ||
104 | case 's': | |
39e4ae38 | 105 | oi.sizep = &size; |
7ecd8690 | 106 | if (oid_object_info_extended(the_repository, &oid, &oi, flags) < 0) |
39e4ae38 | 107 | die("git cat-file: could not get object info"); |
ca473cef | 108 | printf("%"PRIuMAX"\n", (uintmax_t)size); |
39e4ae38 | 109 | return 0; |
7950571a PA |
110 | |
111 | case 'e': | |
63ecb99e | 112 | return !has_object_file(&oid); |
7950571a | 113 | |
b9e62f60 | 114 | case 'w': |
cc0ea7c9 | 115 | if (!path) |
b9e62f60 JS |
116 | die("git cat-file --filters %s: <object> must be " |
117 | "<sha1:path>", obj_name); | |
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': |
cc0ea7c9 | 125 | if (!path) |
3ac21617 MG |
126 | die("git cat-file --textconv %s: <object> must be <sha1:path>", |
127 | obj_name); | |
128 | ||
6afaf807 NTND |
129 | if (textconv_object(the_repository, path, obj_context.mode, |
130 | &oid, 1, &buf, &size)) | |
3ac21617 | 131 | break; |
1cf01a34 | 132 | /* else fallthrough */ |
3ac21617 | 133 | |
a0f15fa5 | 134 | case 'p': |
0df8e965 | 135 | type = oid_object_info(the_repository, &oid, NULL); |
21666f1a | 136 | if (type < 0) |
2b6854c8 | 137 | die("Not a valid object name %s", obj_name); |
a0f15fa5 JH |
138 | |
139 | /* custom pretty-print here */ | |
2b6854c8 | 140 | if (type == OBJ_TREE) { |
66dbfd55 GV |
141 | const char *ls_args[3] = { NULL }; |
142 | ls_args[0] = "ls-tree"; | |
143 | ls_args[1] = obj_name; | |
2b6854c8 SP |
144 | return cmd_ls_tree(2, ls_args, NULL); |
145 | } | |
a0f15fa5 | 146 | |
00c8fd49 | 147 | if (type == OBJ_BLOB) |
98f425b4 | 148 | return stream_blob(&oid); |
b4f5aca4 | 149 | buf = read_object_file(&oid, &type, &size); |
a0f15fa5 | 150 | if (!buf) |
2b6854c8 | 151 | die("Cannot read object %s", obj_name); |
a0f15fa5 JH |
152 | |
153 | /* otherwise just spit out the data */ | |
154 | break; | |
e5fba602 | 155 | |
7950571a | 156 | case 0: |
00c8fd49 | 157 | if (type_from_string(exp_type) == OBJ_BLOB) { |
63ecb99e | 158 | struct object_id blob_oid; |
0df8e965 | 159 | if (oid_object_info(the_repository, &oid, NULL) == OBJ_TAG) { |
b4f5aca4 | 160 | char *buffer = read_object_file(&oid, &type, |
161 | &size); | |
e3f1da98 RS |
162 | const char *target; |
163 | if (!skip_prefix(buffer, "object ", &target) || | |
63ecb99e | 164 | get_oid_hex(target, &blob_oid)) |
165 | die("%s not a valid tag", oid_to_hex(&oid)); | |
00c8fd49 NTND |
166 | free(buffer); |
167 | } else | |
63ecb99e | 168 | oidcpy(&blob_oid, &oid); |
00c8fd49 | 169 | |
0df8e965 | 170 | if (oid_object_info(the_repository, &blob_oid, NULL) == OBJ_BLOB) |
98f425b4 | 171 | return stream_blob(&blob_oid); |
00c8fd49 NTND |
172 | /* |
173 | * we attempted to dereference a tag to a blob | |
174 | * and failed; there may be new dereference | |
175 | * mechanisms this code is not aware of. | |
176 | * fall-back to the usual case. | |
177 | */ | |
178 | } | |
d3b4705a NTND |
179 | buf = read_object_with_reference(the_repository, |
180 | &oid, exp_type, &size, NULL); | |
7950571a PA |
181 | break; |
182 | ||
183 | default: | |
d7530708 | 184 | die("git cat-file: unknown option: %s", exp_type); |
bf0c6e83 LT |
185 | } |
186 | ||
11e7d5c5 | 187 | if (!buf) |
34baebce | 188 | die("git cat-file %s: bad file", obj_name); |
11e7d5c5 | 189 | |
7230e6d0 | 190 | write_or_die(1, buf, size); |
05c2b7ba | 191 | free(buf); |
dc944b65 | 192 | free(obj_context.path); |
bf0c6e83 | 193 | return 0; |
e83c5163 | 194 | } |
9cf71b17 | 195 | |
93d2a607 | 196 | struct expand_data { |
cd4f77be | 197 | struct object_id oid; |
93d2a607 JK |
198 | enum object_type type; |
199 | unsigned long size; | |
166df26f | 200 | off_t disk_size; |
97be0407 | 201 | const char *rest; |
cd4f77be | 202 | struct object_id delta_base_oid; |
93d2a607 JK |
203 | |
204 | /* | |
205 | * If mark_query is true, we do not expand anything, but rather | |
206 | * just mark the object_info with items we wish to query. | |
207 | */ | |
208 | int mark_query; | |
209 | ||
97be0407 JK |
210 | /* |
211 | * Whether to split the input on whitespace before feeding it to | |
212 | * get_sha1; this is decided during the mark_query phase based on | |
213 | * whether we have a %(rest) token in our format. | |
214 | */ | |
215 | int split_on_whitespace; | |
216 | ||
93d2a607 JK |
217 | /* |
218 | * After a mark_query run, this object_info is set up to be | |
c93206b4 | 219 | * passed to oid_object_info_extended. It will point to the data |
93d2a607 JK |
220 | * elements above, so you can retrieve the response from there. |
221 | */ | |
222 | struct object_info info; | |
845de33a JK |
223 | |
224 | /* | |
225 | * This flag will be true if the requested batch format and options | |
c93206b4 | 226 | * don't require us to call oid_object_info, which can then be |
845de33a JK |
227 | * optimized out. |
228 | */ | |
229 | unsigned skip_object_info : 1; | |
93d2a607 JK |
230 | }; |
231 | ||
232 | static int is_atom(const char *atom, const char *s, int slen) | |
233 | { | |
234 | int alen = strlen(atom); | |
235 | return alen == slen && !memcmp(atom, s, alen); | |
236 | } | |
237 | ||
238 | static void expand_atom(struct strbuf *sb, const char *atom, int len, | |
239 | void *vdata) | |
240 | { | |
241 | struct expand_data *data = vdata; | |
242 | ||
243 | if (is_atom("objectname", atom, len)) { | |
244 | if (!data->mark_query) | |
cd4f77be | 245 | strbuf_addstr(sb, oid_to_hex(&data->oid)); |
93d2a607 | 246 | } else if (is_atom("objecttype", atom, len)) { |
5b086407 JK |
247 | if (data->mark_query) |
248 | data->info.typep = &data->type; | |
249 | else | |
debca9d2 | 250 | strbuf_addstr(sb, type_name(data->type)); |
93d2a607 JK |
251 | } else if (is_atom("objectsize", atom, len)) { |
252 | if (data->mark_query) | |
253 | data->info.sizep = &data->size; | |
254 | else | |
ca473cef | 255 | strbuf_addf(sb, "%"PRIuMAX , (uintmax_t)data->size); |
a4ac1061 JK |
256 | } else if (is_atom("objectsize:disk", atom, len)) { |
257 | if (data->mark_query) | |
258 | data->info.disk_sizep = &data->disk_size; | |
259 | else | |
166df26f | 260 | strbuf_addf(sb, "%"PRIuMAX, (uintmax_t)data->disk_size); |
97be0407 JK |
261 | } else if (is_atom("rest", atom, len)) { |
262 | if (data->mark_query) | |
263 | data->split_on_whitespace = 1; | |
264 | else if (data->rest) | |
265 | strbuf_addstr(sb, data->rest); | |
65ea9c3c JK |
266 | } else if (is_atom("deltabase", atom, len)) { |
267 | if (data->mark_query) | |
b99b6bcc | 268 | data->info.delta_base_oid = &data->delta_base_oid; |
65ea9c3c | 269 | else |
cd4f77be | 270 | strbuf_addstr(sb, |
271 | oid_to_hex(&data->delta_base_oid)); | |
93d2a607 JK |
272 | } else |
273 | die("unknown format element: %.*s", len, atom); | |
274 | } | |
275 | ||
276 | static size_t expand_format(struct strbuf *sb, const char *start, void *data) | |
277 | { | |
278 | const char *end; | |
279 | ||
280 | if (*start != '(') | |
281 | return 0; | |
282 | end = strchr(start + 1, ')'); | |
283 | if (!end) | |
284 | die("format element '%s' does not end in ')'", start); | |
285 | ||
286 | expand_atom(sb, start + 1, end - start - 1, data); | |
287 | ||
288 | return end - start + 1; | |
289 | } | |
290 | ||
fc4937c3 JK |
291 | static void batch_write(struct batch_options *opt, const void *data, int len) |
292 | { | |
293 | if (opt->buffer_output) { | |
294 | if (fwrite(data, 1, len, stdout) != len) | |
295 | die_errno("unable to write to stdout"); | |
296 | } else | |
297 | write_or_die(1, data, len); | |
298 | } | |
299 | ||
300 | static void print_object_or_die(struct batch_options *opt, struct expand_data *data) | |
98e2092b | 301 | { |
63ecb99e | 302 | const struct object_id *oid = &data->oid; |
370c9268 | 303 | |
6554dfa9 JK |
304 | assert(data->info.typep); |
305 | ||
370c9268 | 306 | if (data->type == OBJ_BLOB) { |
fc4937c3 JK |
307 | if (opt->buffer_output) |
308 | fflush(stdout); | |
32145943 JS |
309 | if (opt->cmdmode) { |
310 | char *contents; | |
311 | unsigned long size; | |
312 | ||
313 | if (!data->rest) | |
7889ed25 | 314 | die("missing path for '%s'", oid_to_hex(oid)); |
32145943 JS |
315 | |
316 | if (opt->cmdmode == 'w') { | |
7889ed25 | 317 | if (filter_object(data->rest, 0100644, oid, |
32145943 JS |
318 | &contents, &size)) |
319 | die("could not convert '%s' %s", | |
7889ed25 | 320 | oid_to_hex(oid), data->rest); |
32145943 JS |
321 | } else if (opt->cmdmode == 'c') { |
322 | enum object_type type; | |
6afaf807 NTND |
323 | if (!textconv_object(the_repository, |
324 | data->rest, 0100644, oid, | |
32145943 | 325 | 1, &contents, &size)) |
b4f5aca4 | 326 | contents = read_object_file(oid, |
327 | &type, | |
328 | &size); | |
32145943 JS |
329 | if (!contents) |
330 | die("could not convert '%s' %s", | |
7889ed25 | 331 | oid_to_hex(oid), data->rest); |
32145943 | 332 | } else |
033abf97 | 333 | BUG("invalid cmdmode: %c", opt->cmdmode); |
32145943 JS |
334 | batch_write(opt, contents, size); |
335 | free(contents); | |
98f425b4 JK |
336 | } else { |
337 | stream_blob(oid); | |
338 | } | |
98e2092b JK |
339 | } |
340 | else { | |
370c9268 JK |
341 | enum object_type type; |
342 | unsigned long size; | |
98e2092b JK |
343 | void *contents; |
344 | ||
b4f5aca4 | 345 | contents = read_object_file(oid, &type, &size); |
98e2092b | 346 | if (!contents) |
63ecb99e | 347 | die("object %s disappeared", oid_to_hex(oid)); |
370c9268 | 348 | if (type != data->type) |
63ecb99e | 349 | die("object %s changed type!?", oid_to_hex(oid)); |
6554dfa9 | 350 | if (data->info.sizep && size != data->size) |
63ecb99e | 351 | die("object %s changed size!?", oid_to_hex(oid)); |
98e2092b | 352 | |
fc4937c3 | 353 | batch_write(opt, contents, size); |
98e2092b JK |
354 | free(contents); |
355 | } | |
356 | } | |
357 | ||
79ed0a5e JK |
358 | static void batch_object_write(const char *obj_name, |
359 | struct strbuf *scratch, | |
360 | struct batch_options *opt, | |
44b877e9 JK |
361 | struct expand_data *data) |
362 | { | |
845de33a | 363 | if (!data->skip_object_info && |
7ecd8690 | 364 | oid_object_info_extended(the_repository, &data->oid, &data->info, |
abef9020 | 365 | OBJECT_INFO_LOOKUP_REPLACE) < 0) { |
cd4f77be | 366 | printf("%s missing\n", |
367 | obj_name ? obj_name : oid_to_hex(&data->oid)); | |
44b877e9 JK |
368 | fflush(stdout); |
369 | return; | |
370 | } | |
371 | ||
79ed0a5e JK |
372 | strbuf_reset(scratch); |
373 | strbuf_expand(scratch, opt->format, expand_format, data); | |
374 | strbuf_addch(scratch, '\n'); | |
375 | batch_write(opt, scratch->buf, scratch->len); | |
44b877e9 JK |
376 | |
377 | if (opt->print_contents) { | |
378 | print_object_or_die(opt, data); | |
379 | batch_write(opt, "\n", 1); | |
380 | } | |
381 | } | |
382 | ||
79ed0a5e JK |
383 | static void batch_one_object(const char *obj_name, |
384 | struct strbuf *scratch, | |
385 | struct batch_options *opt, | |
82330950 | 386 | struct expand_data *data) |
05d5667f | 387 | { |
122d5346 | 388 | struct object_context ctx; |
321c89bf | 389 | int flags = opt->follow_symlinks ? GET_OID_FOLLOW_SYMLINKS : 0; |
d1dd94b3 | 390 | enum get_oid_result result; |
05d5667f | 391 | |
3a7a698e NTND |
392 | result = get_oid_with_context(the_repository, obj_name, |
393 | flags, &data->oid, &ctx); | |
122d5346 DT |
394 | if (result != FOUND) { |
395 | switch (result) { | |
396 | case MISSING_OBJECT: | |
397 | printf("%s missing\n", obj_name); | |
398 | break; | |
d1dd94b3 DT |
399 | case SHORT_NAME_AMBIGUOUS: |
400 | printf("%s ambiguous\n", obj_name); | |
401 | break; | |
122d5346 DT |
402 | case DANGLING_SYMLINK: |
403 | printf("dangling %"PRIuMAX"\n%s\n", | |
404 | (uintmax_t)strlen(obj_name), obj_name); | |
405 | break; | |
406 | case SYMLINK_LOOP: | |
407 | printf("loop %"PRIuMAX"\n%s\n", | |
408 | (uintmax_t)strlen(obj_name), obj_name); | |
409 | break; | |
410 | case NOT_DIR: | |
411 | printf("notdir %"PRIuMAX"\n%s\n", | |
412 | (uintmax_t)strlen(obj_name), obj_name); | |
413 | break; | |
414 | default: | |
033abf97 | 415 | BUG("unknown get_sha1_with_context result %d\n", |
122d5346 DT |
416 | result); |
417 | break; | |
418 | } | |
419 | fflush(stdout); | |
82330950 | 420 | return; |
122d5346 DT |
421 | } |
422 | ||
423 | if (ctx.mode == 0) { | |
424 | printf("symlink %"PRIuMAX"\n%s\n", | |
425 | (uintmax_t)ctx.symlink_path.len, | |
426 | ctx.symlink_path.buf); | |
422b2063 | 427 | fflush(stdout); |
82330950 | 428 | return; |
05d5667f AR |
429 | } |
430 | ||
79ed0a5e | 431 | batch_object_write(obj_name, scratch, opt, data); |
05d5667f AR |
432 | } |
433 | ||
6a951937 JK |
434 | struct object_cb_data { |
435 | struct batch_options *opt; | |
436 | struct expand_data *expand; | |
0750bb5b | 437 | struct oidset *seen; |
79ed0a5e | 438 | struct strbuf *scratch; |
6a951937 JK |
439 | }; |
440 | ||
1b7ba794 | 441 | static int batch_object_cb(const struct object_id *oid, void *vdata) |
6a951937 | 442 | { |
3115ee45 | 443 | struct object_cb_data *data = vdata; |
1b7ba794 | 444 | oidcpy(&data->expand->oid, oid); |
79ed0a5e | 445 | batch_object_write(NULL, data->scratch, data->opt, data->expand); |
16ddcd40 | 446 | return 0; |
6a951937 JK |
447 | } |
448 | ||
b1adb384 JK |
449 | static int collect_loose_object(const struct object_id *oid, |
450 | const char *path, | |
451 | void *data) | |
6a951937 | 452 | { |
910650d2 | 453 | oid_array_append(data, oid); |
3115ee45 | 454 | return 0; |
6a951937 JK |
455 | } |
456 | ||
b1adb384 JK |
457 | static int collect_packed_object(const struct object_id *oid, |
458 | struct packed_git *pack, | |
459 | uint32_t pos, | |
460 | void *data) | |
6a951937 | 461 | { |
910650d2 | 462 | oid_array_append(data, oid); |
3115ee45 | 463 | return 0; |
6a951937 JK |
464 | } |
465 | ||
0750bb5b JK |
466 | static int batch_unordered_object(const struct object_id *oid, void *vdata) |
467 | { | |
468 | struct object_cb_data *data = vdata; | |
469 | ||
ced9fff7 | 470 | if (oidset_insert(data->seen, oid)) |
0750bb5b | 471 | return 0; |
0750bb5b JK |
472 | |
473 | return batch_object_cb(oid, data); | |
474 | } | |
475 | ||
476 | static int batch_unordered_loose(const struct object_id *oid, | |
477 | const char *path, | |
478 | void *data) | |
479 | { | |
480 | return batch_unordered_object(oid, data); | |
481 | } | |
482 | ||
483 | static int batch_unordered_packed(const struct object_id *oid, | |
484 | struct packed_git *pack, | |
485 | uint32_t pos, | |
486 | void *data) | |
487 | { | |
488 | return batch_unordered_object(oid, data); | |
489 | } | |
490 | ||
b71bd480 | 491 | static int batch_objects(struct batch_options *opt) |
05d5667f | 492 | { |
54d2f0d9 JK |
493 | struct strbuf input = STRBUF_INIT; |
494 | struct strbuf output = STRBUF_INIT; | |
93d2a607 | 495 | struct expand_data data; |
a42fcd15 | 496 | int save_warning; |
07e23839 | 497 | int retval = 0; |
93d2a607 JK |
498 | |
499 | if (!opt->format) | |
500 | opt->format = "%(objectname) %(objecttype) %(objectsize)"; | |
501 | ||
502 | /* | |
503 | * Expand once with our special mark_query flag, which will prime the | |
c93206b4 | 504 | * object_info to be handed to oid_object_info_extended for each |
93d2a607 JK |
505 | * object. |
506 | */ | |
507 | memset(&data, 0, sizeof(data)); | |
508 | data.mark_query = 1; | |
54d2f0d9 | 509 | strbuf_expand(&output, opt->format, expand_format, &data); |
93d2a607 | 510 | data.mark_query = 0; |
54d2f0d9 | 511 | strbuf_release(&output); |
32145943 JS |
512 | if (opt->cmdmode) |
513 | data.split_on_whitespace = 1; | |
05d5667f | 514 | |
845de33a | 515 | if (opt->all_objects) { |
27b5c1a0 | 516 | struct object_info empty = OBJECT_INFO_INIT; |
845de33a JK |
517 | if (!memcmp(&data.info, &empty, sizeof(empty))) |
518 | data.skip_object_info = 1; | |
519 | } | |
520 | ||
6554dfa9 JK |
521 | /* |
522 | * If we are printing out the object, then always fill in the type, | |
523 | * since we will want to decide whether or not to stream. | |
524 | */ | |
525 | if (opt->print_contents) | |
526 | data.info.typep = &data.type; | |
527 | ||
6a951937 JK |
528 | if (opt->all_objects) { |
529 | struct object_cb_data cb; | |
3115ee45 | 530 | |
b14ed5ad CC |
531 | if (has_promisor_remote()) |
532 | warning("This repository uses promisor remotes. Some objects may not be loaded."); | |
3115ee45 | 533 | |
6a951937 JK |
534 | cb.opt = opt; |
535 | cb.expand = &data; | |
79ed0a5e | 536 | cb.scratch = &output; |
3115ee45 | 537 | |
0750bb5b JK |
538 | if (opt->unordered) { |
539 | struct oidset seen = OIDSET_INIT; | |
540 | ||
541 | cb.seen = &seen; | |
542 | ||
543 | for_each_loose_object(batch_unordered_loose, &cb, 0); | |
544 | for_each_packed_object(batch_unordered_packed, &cb, | |
545 | FOR_EACH_OBJECT_PACK_ORDER); | |
546 | ||
547 | oidset_clear(&seen); | |
548 | } else { | |
549 | struct oid_array sa = OID_ARRAY_INIT; | |
550 | ||
551 | for_each_loose_object(collect_loose_object, &sa, 0); | |
552 | for_each_packed_object(collect_packed_object, &sa, 0); | |
553 | ||
554 | oid_array_for_each_unique(&sa, batch_object_cb, &cb); | |
555 | ||
556 | oid_array_clear(&sa); | |
557 | } | |
558 | ||
79ed0a5e | 559 | strbuf_release(&output); |
6a951937 JK |
560 | return 0; |
561 | } | |
562 | ||
25fba78d JK |
563 | /* |
564 | * We are going to call get_sha1 on a potentially very large number of | |
565 | * objects. In most large cases, these will be actual object sha1s. The | |
566 | * cost to double-check that each one is not also a ref (just so we can | |
567 | * warn) ends up dwarfing the actual cost of the object lookups | |
568 | * themselves. We can work around it by just turning off the warning. | |
569 | */ | |
a42fcd15 | 570 | save_warning = warn_on_object_refname_ambiguity; |
25fba78d JK |
571 | warn_on_object_refname_ambiguity = 0; |
572 | ||
54d2f0d9 | 573 | while (strbuf_getline(&input, stdin) != EOF) { |
97be0407 JK |
574 | if (data.split_on_whitespace) { |
575 | /* | |
576 | * Split at first whitespace, tying off the beginning | |
577 | * of the string and saving the remainder (or NULL) in | |
578 | * data.rest. | |
579 | */ | |
54d2f0d9 | 580 | char *p = strpbrk(input.buf, " \t"); |
97be0407 JK |
581 | if (p) { |
582 | while (*p && strchr(" \t", *p)) | |
583 | *p++ = '\0'; | |
584 | } | |
585 | data.rest = p; | |
586 | } | |
587 | ||
79ed0a5e | 588 | batch_one_object(input.buf, &output, opt, &data); |
05d5667f AR |
589 | } |
590 | ||
54d2f0d9 | 591 | strbuf_release(&input); |
79ed0a5e | 592 | strbuf_release(&output); |
a42fcd15 | 593 | warn_on_object_refname_ambiguity = save_warning; |
07e23839 | 594 | return retval; |
05d5667f AR |
595 | } |
596 | ||
15d8e565 | 597 | static const char * const cat_file_usage[] = { |
7889ed25 | 598 | N_("git cat-file (-t [--allow-unknown-type] | -s [--allow-unknown-type] | -e | -p | <type> | --textconv | --filters) [--path=<path>] <object>"), |
0172f783 | 599 | N_("git cat-file (--batch[=<format>] | --batch-check[=<format>]) [--follow-symlinks] [--textconv | --filters]"), |
15d8e565 MB |
600 | NULL |
601 | }; | |
4814dbe8 | 602 | |
e5fba602 CP |
603 | static int git_cat_file_config(const char *var, const char *value, void *cb) |
604 | { | |
6680a087 | 605 | if (userdiff_config(var, value) < 0) |
e5fba602 | 606 | return -1; |
e5fba602 CP |
607 | |
608 | return git_default_config(var, value, cb); | |
609 | } | |
610 | ||
b71bd480 JK |
611 | static int batch_option_callback(const struct option *opt, |
612 | const char *arg, | |
613 | int unset) | |
614 | { | |
615 | struct batch_options *bo = opt->value; | |
616 | ||
517fe807 JK |
617 | BUG_ON_OPT_NEG(unset); |
618 | ||
122d5346 | 619 | if (bo->enabled) { |
0eb8d376 | 620 | return error(_("only one batch option may be specified")); |
b71bd480 JK |
621 | } |
622 | ||
623 | bo->enabled = 1; | |
624 | bo->print_contents = !strcmp(opt->long_name, "batch"); | |
93d2a607 | 625 | bo->format = arg; |
b71bd480 JK |
626 | |
627 | return 0; | |
628 | } | |
629 | ||
9cf71b17 AR |
630 | int cmd_cat_file(int argc, const char **argv, const char *prefix) |
631 | { | |
b71bd480 | 632 | int opt = 0; |
4814dbe8 | 633 | const char *exp_type = NULL, *obj_name = NULL; |
b71bd480 | 634 | struct batch_options batch = {0}; |
39e4ae38 | 635 | int unknown_type = 0; |
9cf71b17 | 636 | |
15d8e565 | 637 | const struct option options[] = { |
d68faec7 | 638 | OPT_GROUP(N_("<type> can be one of: blob, tree, commit, tag")), |
b48158ac KN |
639 | OPT_CMDMODE('t', NULL, &opt, N_("show object type"), 't'), |
640 | OPT_CMDMODE('s', NULL, &opt, N_("show object size"), 's'), | |
641 | OPT_CMDMODE('e', NULL, &opt, | |
d68faec7 | 642 | N_("exit with zero when there's no error"), 'e'), |
b48158ac KN |
643 | OPT_CMDMODE('p', NULL, &opt, N_("pretty-print object's content"), 'p'), |
644 | OPT_CMDMODE(0, "textconv", &opt, | |
d68faec7 | 645 | N_("for blob objects, run textconv on object's content"), 'c'), |
b9e62f60 JS |
646 | OPT_CMDMODE(0, "filters", &opt, |
647 | N_("for blob objects, run filters on object's content"), 'w'), | |
7bcf3414 JS |
648 | OPT_STRING(0, "path", &force_path, N_("blob"), |
649 | N_("use a specific path for --textconv/--filters")), | |
ad42f28d | 650 | OPT_BOOL(0, "allow-unknown-type", &unknown_type, |
39e4ae38 | 651 | N_("allow -s and -t to work with broken/corrupt objects")), |
fc4937c3 | 652 | OPT_BOOL(0, "buffer", &batch.buffer_output, N_("buffer --batch output")), |
203c8533 | 653 | OPT_CALLBACK_F(0, "batch", &batch, "format", |
b71bd480 | 654 | N_("show info and content of objects fed from the standard input"), |
0ad1efb4 | 655 | PARSE_OPT_OPTARG | PARSE_OPT_NONEG, |
203c8533 DL |
656 | batch_option_callback), |
657 | OPT_CALLBACK_F(0, "batch-check", &batch, "format", | |
b71bd480 | 658 | N_("show info about objects fed from the standard input"), |
0ad1efb4 | 659 | PARSE_OPT_OPTARG | PARSE_OPT_NONEG, |
203c8533 | 660 | batch_option_callback), |
122d5346 DT |
661 | OPT_BOOL(0, "follow-symlinks", &batch.follow_symlinks, |
662 | N_("follow in-tree symlinks (used with --batch or --batch-check)")), | |
6a951937 JK |
663 | OPT_BOOL(0, "batch-all-objects", &batch.all_objects, |
664 | N_("show all objects with --batch or --batch-check")), | |
0750bb5b JK |
665 | OPT_BOOL(0, "unordered", &batch.unordered, |
666 | N_("do not order --batch-all-objects output")), | |
15d8e565 MB |
667 | OPT_END() |
668 | }; | |
a8128ed6 | 669 | |
e5fba602 | 670 | git_config(git_cat_file_config, NULL); |
4814dbe8 | 671 | |
6a36e1e7 | 672 | batch.buffer_output = -1; |
37782920 | 673 | argc = parse_options(argc, argv, prefix, options, cat_file_usage, 0); |
05d5667f | 674 | |
15d8e565 | 675 | if (opt) { |
32145943 JS |
676 | if (batch.enabled && (opt == 'c' || opt == 'w')) |
677 | batch.cmdmode = opt; | |
678 | else if (argc == 1) | |
15d8e565 MB |
679 | obj_name = argv[0]; |
680 | else | |
681 | usage_with_options(cat_file_usage, options); | |
682 | } | |
b71bd480 | 683 | if (!opt && !batch.enabled) { |
15d8e565 MB |
684 | if (argc == 2) { |
685 | exp_type = argv[0]; | |
686 | obj_name = argv[1]; | |
687 | } else | |
688 | usage_with_options(cat_file_usage, options); | |
689 | } | |
32145943 JS |
690 | if (batch.enabled) { |
691 | if (batch.cmdmode != opt || argc) | |
692 | usage_with_options(cat_file_usage, options); | |
693 | if (batch.cmdmode && batch.all_objects) | |
694 | die("--batch-all-objects cannot be combined with " | |
695 | "--textconv nor with --filters"); | |
9cf71b17 AR |
696 | } |
697 | ||
6a951937 | 698 | if ((batch.follow_symlinks || batch.all_objects) && !batch.enabled) { |
122d5346 DT |
699 | usage_with_options(cat_file_usage, options); |
700 | } | |
701 | ||
7bcf3414 JS |
702 | if (force_path && opt != 'c' && opt != 'w') { |
703 | error("--path=<path> needs --textconv or --filters"); | |
704 | usage_with_options(cat_file_usage, options); | |
705 | } | |
706 | ||
32145943 JS |
707 | if (force_path && batch.enabled) { |
708 | error("--path=<path> incompatible with --batch"); | |
709 | usage_with_options(cat_file_usage, options); | |
710 | } | |
711 | ||
6a36e1e7 JK |
712 | if (batch.buffer_output < 0) |
713 | batch.buffer_output = batch.all_objects; | |
714 | ||
b71bd480 JK |
715 | if (batch.enabled) |
716 | return batch_objects(&batch); | |
05d5667f | 717 | |
39e4ae38 KN |
718 | if (unknown_type && opt != 't' && opt != 's') |
719 | die("git cat-file --allow-unknown-type: use with -s or -t"); | |
720 | return cat_one_file(opt, exp_type, obj_name, unknown_type); | |
9cf71b17 | 721 | } |