]>
Commit | Line | Data |
---|---|---|
8bc9a0c7 LT |
1 | /* |
2 | * GIT - The information manager from hell | |
3 | * | |
4 | * Copyright (C) Linus Torvalds, 2005 | |
5 | */ | |
e83c5163 | 6 | #include "cache.h" |
f81daefe | 7 | #include "builtin.h" |
15d8e565 | 8 | #include "parse-options.h" |
e5fba602 | 9 | #include "userdiff.h" |
00c8fd49 | 10 | #include "streaming.h" |
122d5346 | 11 | #include "tree-walk.h" |
3115ee45 | 12 | #include "sha1-array.h" |
15d8e565 | 13 | |
bfd15594 JK |
14 | struct batch_options { |
15 | int enabled; | |
16 | int follow_symlinks; | |
17 | int print_contents; | |
fc4937c3 | 18 | int buffer_output; |
6a951937 | 19 | int all_objects; |
32145943 | 20 | int cmdmode; /* may be 'w' or 'c' for --filters or --textconv */ |
bfd15594 JK |
21 | const char *format; |
22 | }; | |
23 | ||
7bcf3414 JS |
24 | static const char *force_path; |
25 | ||
b9e62f60 | 26 | static int filter_object(const char *path, unsigned mode, |
7889ed25 | 27 | const struct object_id *oid, |
b9e62f60 JS |
28 | char **buf, unsigned long *size) |
29 | { | |
30 | enum object_type type; | |
31 | ||
7889ed25 | 32 | *buf = read_sha1_file(oid->hash, &type, size); |
b9e62f60 JS |
33 | if (!*buf) |
34 | return error(_("cannot read object %s '%s'"), | |
7889ed25 | 35 | oid_to_hex(oid), path); |
b9e62f60 JS |
36 | if ((type == OBJ_BLOB) && S_ISREG(mode)) { |
37 | struct strbuf strbuf = STRBUF_INIT; | |
38 | if (convert_to_working_tree(path, *buf, *size, &strbuf)) { | |
39 | free(*buf); | |
40 | *size = strbuf.len; | |
41 | *buf = strbuf_detach(&strbuf, NULL); | |
42 | } | |
43 | } | |
44 | ||
45 | return 0; | |
46 | } | |
47 | ||
39e4ae38 KN |
48 | static int cat_one_file(int opt, const char *exp_type, const char *obj_name, |
49 | int unknown_type) | |
e83c5163 | 50 | { |
63ecb99e | 51 | struct object_id oid; |
21666f1a | 52 | enum object_type type; |
e5fba602 | 53 | char *buf; |
e83c5163 | 54 | unsigned long size; |
e5fba602 | 55 | struct object_context obj_context; |
27b5c1a0 | 56 | struct object_info oi = OBJECT_INFO_INIT; |
39e4ae38 KN |
57 | struct strbuf sb = STRBUF_INIT; |
58 | unsigned flags = LOOKUP_REPLACE_OBJECT; | |
7bcf3414 | 59 | const char *path = force_path; |
39e4ae38 KN |
60 | |
61 | if (unknown_type) | |
62 | flags |= LOOKUP_UNKNOWN_OBJECT; | |
2b6854c8 | 63 | |
63ecb99e | 64 | if (get_sha1_with_context(obj_name, 0, oid.hash, &obj_context)) |
2b6854c8 | 65 | die("Not a valid object name %s", obj_name); |
7950571a | 66 | |
7bcf3414 JS |
67 | if (!path) |
68 | path = obj_context.path; | |
69 | if (obj_context.mode == S_IFINVALID) | |
70 | obj_context.mode = 0100644; | |
71 | ||
7950571a PA |
72 | buf = NULL; |
73 | switch (opt) { | |
74 | case 't': | |
39e4ae38 | 75 | oi.typename = &sb; |
63ecb99e | 76 | if (sha1_object_info_extended(oid.hash, &oi, flags) < 0) |
39e4ae38 KN |
77 | die("git cat-file: could not get object info"); |
78 | if (sb.len) { | |
79 | printf("%s\n", sb.buf); | |
80 | strbuf_release(&sb); | |
f2a06330 | 81 | return 0; |
11e7d5c5 | 82 | } |
7950571a PA |
83 | break; |
84 | ||
85 | case 's': | |
39e4ae38 | 86 | oi.sizep = &size; |
63ecb99e | 87 | if (sha1_object_info_extended(oid.hash, &oi, flags) < 0) |
39e4ae38 KN |
88 | die("git cat-file: could not get object info"); |
89 | printf("%lu\n", size); | |
90 | return 0; | |
7950571a PA |
91 | |
92 | case 'e': | |
63ecb99e | 93 | return !has_object_file(&oid); |
7950571a | 94 | |
b9e62f60 | 95 | case 'w': |
7bcf3414 | 96 | if (!path[0]) |
b9e62f60 JS |
97 | die("git cat-file --filters %s: <object> must be " |
98 | "<sha1:path>", obj_name); | |
99 | ||
7bcf3414 | 100 | if (filter_object(path, obj_context.mode, |
7889ed25 | 101 | &oid, &buf, &size)) |
b9e62f60 JS |
102 | return -1; |
103 | break; | |
104 | ||
3ac21617 | 105 | case 'c': |
7bcf3414 | 106 | if (!path[0]) |
3ac21617 MG |
107 | die("git cat-file --textconv %s: <object> must be <sha1:path>", |
108 | obj_name); | |
109 | ||
7889ed25 | 110 | if (textconv_object(path, obj_context.mode, &oid, 1, &buf, &size)) |
3ac21617 MG |
111 | break; |
112 | ||
a0f15fa5 | 113 | case 'p': |
63ecb99e | 114 | type = sha1_object_info(oid.hash, NULL); |
21666f1a | 115 | if (type < 0) |
2b6854c8 | 116 | die("Not a valid object name %s", obj_name); |
a0f15fa5 JH |
117 | |
118 | /* custom pretty-print here */ | |
2b6854c8 | 119 | if (type == OBJ_TREE) { |
66dbfd55 GV |
120 | const char *ls_args[3] = { NULL }; |
121 | ls_args[0] = "ls-tree"; | |
122 | ls_args[1] = obj_name; | |
2b6854c8 SP |
123 | return cmd_ls_tree(2, ls_args, NULL); |
124 | } | |
a0f15fa5 | 125 | |
00c8fd49 | 126 | if (type == OBJ_BLOB) |
7eda0e4f | 127 | return stream_blob_to_fd(1, &oid, NULL, 0); |
63ecb99e | 128 | buf = read_sha1_file(oid.hash, &type, &size); |
a0f15fa5 | 129 | if (!buf) |
2b6854c8 | 130 | die("Cannot read object %s", obj_name); |
a0f15fa5 JH |
131 | |
132 | /* otherwise just spit out the data */ | |
133 | break; | |
e5fba602 | 134 | |
7950571a | 135 | case 0: |
00c8fd49 | 136 | if (type_from_string(exp_type) == OBJ_BLOB) { |
63ecb99e | 137 | struct object_id blob_oid; |
138 | if (sha1_object_info(oid.hash, NULL) == OBJ_TAG) { | |
139 | char *buffer = read_sha1_file(oid.hash, &type, &size); | |
e3f1da98 RS |
140 | const char *target; |
141 | if (!skip_prefix(buffer, "object ", &target) || | |
63ecb99e | 142 | get_oid_hex(target, &blob_oid)) |
143 | die("%s not a valid tag", oid_to_hex(&oid)); | |
00c8fd49 NTND |
144 | free(buffer); |
145 | } else | |
63ecb99e | 146 | oidcpy(&blob_oid, &oid); |
00c8fd49 | 147 | |
63ecb99e | 148 | if (sha1_object_info(blob_oid.hash, NULL) == OBJ_BLOB) |
7eda0e4f | 149 | return stream_blob_to_fd(1, &blob_oid, NULL, 0); |
00c8fd49 NTND |
150 | /* |
151 | * we attempted to dereference a tag to a blob | |
152 | * and failed; there may be new dereference | |
153 | * mechanisms this code is not aware of. | |
154 | * fall-back to the usual case. | |
155 | */ | |
156 | } | |
63ecb99e | 157 | buf = read_object_with_reference(oid.hash, exp_type, &size, NULL); |
7950571a PA |
158 | break; |
159 | ||
160 | default: | |
d7530708 | 161 | die("git cat-file: unknown option: %s", exp_type); |
bf0c6e83 LT |
162 | } |
163 | ||
11e7d5c5 | 164 | if (!buf) |
34baebce | 165 | die("git cat-file %s: bad file", obj_name); |
11e7d5c5 | 166 | |
7230e6d0 | 167 | write_or_die(1, buf, size); |
bf0c6e83 | 168 | return 0; |
e83c5163 | 169 | } |
9cf71b17 | 170 | |
93d2a607 | 171 | struct expand_data { |
cd4f77be | 172 | struct object_id oid; |
93d2a607 JK |
173 | enum object_type type; |
174 | unsigned long size; | |
166df26f | 175 | off_t disk_size; |
97be0407 | 176 | const char *rest; |
cd4f77be | 177 | struct object_id delta_base_oid; |
93d2a607 JK |
178 | |
179 | /* | |
180 | * If mark_query is true, we do not expand anything, but rather | |
181 | * just mark the object_info with items we wish to query. | |
182 | */ | |
183 | int mark_query; | |
184 | ||
97be0407 JK |
185 | /* |
186 | * Whether to split the input on whitespace before feeding it to | |
187 | * get_sha1; this is decided during the mark_query phase based on | |
188 | * whether we have a %(rest) token in our format. | |
189 | */ | |
190 | int split_on_whitespace; | |
191 | ||
93d2a607 JK |
192 | /* |
193 | * After a mark_query run, this object_info is set up to be | |
194 | * passed to sha1_object_info_extended. It will point to the data | |
195 | * elements above, so you can retrieve the response from there. | |
196 | */ | |
197 | struct object_info info; | |
845de33a JK |
198 | |
199 | /* | |
200 | * This flag will be true if the requested batch format and options | |
201 | * don't require us to call sha1_object_info, which can then be | |
202 | * optimized out. | |
203 | */ | |
204 | unsigned skip_object_info : 1; | |
93d2a607 JK |
205 | }; |
206 | ||
207 | static int is_atom(const char *atom, const char *s, int slen) | |
208 | { | |
209 | int alen = strlen(atom); | |
210 | return alen == slen && !memcmp(atom, s, alen); | |
211 | } | |
212 | ||
213 | static void expand_atom(struct strbuf *sb, const char *atom, int len, | |
214 | void *vdata) | |
215 | { | |
216 | struct expand_data *data = vdata; | |
217 | ||
218 | if (is_atom("objectname", atom, len)) { | |
219 | if (!data->mark_query) | |
cd4f77be | 220 | strbuf_addstr(sb, oid_to_hex(&data->oid)); |
93d2a607 | 221 | } else if (is_atom("objecttype", atom, len)) { |
5b086407 JK |
222 | if (data->mark_query) |
223 | data->info.typep = &data->type; | |
224 | else | |
93d2a607 JK |
225 | strbuf_addstr(sb, typename(data->type)); |
226 | } else if (is_atom("objectsize", atom, len)) { | |
227 | if (data->mark_query) | |
228 | data->info.sizep = &data->size; | |
229 | else | |
230 | strbuf_addf(sb, "%lu", data->size); | |
a4ac1061 JK |
231 | } else if (is_atom("objectsize:disk", atom, len)) { |
232 | if (data->mark_query) | |
233 | data->info.disk_sizep = &data->disk_size; | |
234 | else | |
166df26f | 235 | strbuf_addf(sb, "%"PRIuMAX, (uintmax_t)data->disk_size); |
97be0407 JK |
236 | } else if (is_atom("rest", atom, len)) { |
237 | if (data->mark_query) | |
238 | data->split_on_whitespace = 1; | |
239 | else if (data->rest) | |
240 | strbuf_addstr(sb, data->rest); | |
65ea9c3c JK |
241 | } else if (is_atom("deltabase", atom, len)) { |
242 | if (data->mark_query) | |
cd4f77be | 243 | data->info.delta_base_sha1 = data->delta_base_oid.hash; |
65ea9c3c | 244 | else |
cd4f77be | 245 | strbuf_addstr(sb, |
246 | oid_to_hex(&data->delta_base_oid)); | |
93d2a607 JK |
247 | } else |
248 | die("unknown format element: %.*s", len, atom); | |
249 | } | |
250 | ||
251 | static size_t expand_format(struct strbuf *sb, const char *start, void *data) | |
252 | { | |
253 | const char *end; | |
254 | ||
255 | if (*start != '(') | |
256 | return 0; | |
257 | end = strchr(start + 1, ')'); | |
258 | if (!end) | |
259 | die("format element '%s' does not end in ')'", start); | |
260 | ||
261 | expand_atom(sb, start + 1, end - start - 1, data); | |
262 | ||
263 | return end - start + 1; | |
264 | } | |
265 | ||
fc4937c3 JK |
266 | static void batch_write(struct batch_options *opt, const void *data, int len) |
267 | { | |
268 | if (opt->buffer_output) { | |
269 | if (fwrite(data, 1, len, stdout) != len) | |
270 | die_errno("unable to write to stdout"); | |
271 | } else | |
272 | write_or_die(1, data, len); | |
273 | } | |
274 | ||
275 | static void print_object_or_die(struct batch_options *opt, struct expand_data *data) | |
98e2092b | 276 | { |
63ecb99e | 277 | const struct object_id *oid = &data->oid; |
370c9268 | 278 | |
6554dfa9 JK |
279 | assert(data->info.typep); |
280 | ||
370c9268 | 281 | if (data->type == OBJ_BLOB) { |
fc4937c3 JK |
282 | if (opt->buffer_output) |
283 | fflush(stdout); | |
32145943 JS |
284 | if (opt->cmdmode) { |
285 | char *contents; | |
286 | unsigned long size; | |
287 | ||
288 | if (!data->rest) | |
7889ed25 | 289 | die("missing path for '%s'", oid_to_hex(oid)); |
32145943 JS |
290 | |
291 | if (opt->cmdmode == 'w') { | |
7889ed25 | 292 | if (filter_object(data->rest, 0100644, oid, |
32145943 JS |
293 | &contents, &size)) |
294 | die("could not convert '%s' %s", | |
7889ed25 | 295 | oid_to_hex(oid), data->rest); |
32145943 JS |
296 | } else if (opt->cmdmode == 'c') { |
297 | enum object_type type; | |
7889ed25 | 298 | if (!textconv_object(data->rest, 0100644, oid, |
32145943 | 299 | 1, &contents, &size)) |
7889ed25 | 300 | contents = read_sha1_file(oid->hash, &type, |
32145943 JS |
301 | &size); |
302 | if (!contents) | |
303 | die("could not convert '%s' %s", | |
7889ed25 | 304 | oid_to_hex(oid), data->rest); |
32145943 JS |
305 | } else |
306 | die("BUG: invalid cmdmode: %c", opt->cmdmode); | |
307 | batch_write(opt, contents, size); | |
308 | free(contents); | |
7889ed25 | 309 | } else if (stream_blob_to_fd(1, oid, NULL, 0) < 0) |
63ecb99e | 310 | die("unable to stream %s to stdout", oid_to_hex(oid)); |
98e2092b JK |
311 | } |
312 | else { | |
370c9268 JK |
313 | enum object_type type; |
314 | unsigned long size; | |
98e2092b JK |
315 | void *contents; |
316 | ||
63ecb99e | 317 | contents = read_sha1_file(oid->hash, &type, &size); |
98e2092b | 318 | if (!contents) |
63ecb99e | 319 | die("object %s disappeared", oid_to_hex(oid)); |
370c9268 | 320 | if (type != data->type) |
63ecb99e | 321 | die("object %s changed type!?", oid_to_hex(oid)); |
6554dfa9 | 322 | if (data->info.sizep && size != data->size) |
63ecb99e | 323 | die("object %s changed size!?", oid_to_hex(oid)); |
98e2092b | 324 | |
fc4937c3 | 325 | batch_write(opt, contents, size); |
98e2092b JK |
326 | free(contents); |
327 | } | |
328 | } | |
329 | ||
44b877e9 JK |
330 | static void batch_object_write(const char *obj_name, struct batch_options *opt, |
331 | struct expand_data *data) | |
332 | { | |
333 | struct strbuf buf = STRBUF_INIT; | |
334 | ||
845de33a | 335 | if (!data->skip_object_info && |
cd4f77be | 336 | sha1_object_info_extended(data->oid.hash, &data->info, LOOKUP_REPLACE_OBJECT) < 0) { |
337 | printf("%s missing\n", | |
338 | obj_name ? obj_name : oid_to_hex(&data->oid)); | |
44b877e9 JK |
339 | fflush(stdout); |
340 | return; | |
341 | } | |
342 | ||
343 | strbuf_expand(&buf, opt->format, expand_format, data); | |
344 | strbuf_addch(&buf, '\n'); | |
345 | batch_write(opt, buf.buf, buf.len); | |
346 | strbuf_release(&buf); | |
347 | ||
348 | if (opt->print_contents) { | |
349 | print_object_or_die(opt, data); | |
350 | batch_write(opt, "\n", 1); | |
351 | } | |
352 | } | |
353 | ||
82330950 JK |
354 | static void batch_one_object(const char *obj_name, struct batch_options *opt, |
355 | struct expand_data *data) | |
05d5667f | 356 | { |
122d5346 DT |
357 | struct object_context ctx; |
358 | int flags = opt->follow_symlinks ? GET_SHA1_FOLLOW_SYMLINKS : 0; | |
359 | enum follow_symlinks_result result; | |
05d5667f | 360 | |
cd4f77be | 361 | result = get_sha1_with_context(obj_name, flags, data->oid.hash, &ctx); |
122d5346 DT |
362 | if (result != FOUND) { |
363 | switch (result) { | |
364 | case MISSING_OBJECT: | |
365 | printf("%s missing\n", obj_name); | |
366 | break; | |
367 | case DANGLING_SYMLINK: | |
368 | printf("dangling %"PRIuMAX"\n%s\n", | |
369 | (uintmax_t)strlen(obj_name), obj_name); | |
370 | break; | |
371 | case SYMLINK_LOOP: | |
372 | printf("loop %"PRIuMAX"\n%s\n", | |
373 | (uintmax_t)strlen(obj_name), obj_name); | |
374 | break; | |
375 | case NOT_DIR: | |
376 | printf("notdir %"PRIuMAX"\n%s\n", | |
377 | (uintmax_t)strlen(obj_name), obj_name); | |
378 | break; | |
379 | default: | |
380 | die("BUG: unknown get_sha1_with_context result %d\n", | |
381 | result); | |
382 | break; | |
383 | } | |
384 | fflush(stdout); | |
82330950 | 385 | return; |
122d5346 DT |
386 | } |
387 | ||
388 | if (ctx.mode == 0) { | |
389 | printf("symlink %"PRIuMAX"\n%s\n", | |
390 | (uintmax_t)ctx.symlink_path.len, | |
391 | ctx.symlink_path.buf); | |
422b2063 | 392 | fflush(stdout); |
82330950 | 393 | return; |
05d5667f AR |
394 | } |
395 | ||
44b877e9 | 396 | batch_object_write(obj_name, opt, data); |
05d5667f AR |
397 | } |
398 | ||
6a951937 JK |
399 | struct object_cb_data { |
400 | struct batch_options *opt; | |
401 | struct expand_data *expand; | |
402 | }; | |
403 | ||
16ddcd40 | 404 | static int batch_object_cb(const unsigned char sha1[20], void *vdata) |
6a951937 | 405 | { |
3115ee45 | 406 | struct object_cb_data *data = vdata; |
cd4f77be | 407 | hashcpy(data->expand->oid.hash, sha1); |
6a951937 | 408 | batch_object_write(NULL, data->opt, data->expand); |
16ddcd40 | 409 | return 0; |
6a951937 JK |
410 | } |
411 | ||
412 | static int batch_loose_object(const unsigned char *sha1, | |
413 | const char *path, | |
414 | void *data) | |
415 | { | |
3115ee45 JK |
416 | sha1_array_append(data, sha1); |
417 | return 0; | |
6a951937 JK |
418 | } |
419 | ||
420 | static int batch_packed_object(const unsigned char *sha1, | |
421 | struct packed_git *pack, | |
422 | uint32_t pos, | |
423 | void *data) | |
424 | { | |
3115ee45 JK |
425 | sha1_array_append(data, sha1); |
426 | return 0; | |
6a951937 JK |
427 | } |
428 | ||
b71bd480 | 429 | static int batch_objects(struct batch_options *opt) |
05d5667f | 430 | { |
f285a2d7 | 431 | struct strbuf buf = STRBUF_INIT; |
93d2a607 | 432 | struct expand_data data; |
a42fcd15 | 433 | int save_warning; |
07e23839 | 434 | int retval = 0; |
93d2a607 JK |
435 | |
436 | if (!opt->format) | |
437 | opt->format = "%(objectname) %(objecttype) %(objectsize)"; | |
438 | ||
439 | /* | |
440 | * Expand once with our special mark_query flag, which will prime the | |
441 | * object_info to be handed to sha1_object_info_extended for each | |
442 | * object. | |
443 | */ | |
444 | memset(&data, 0, sizeof(data)); | |
445 | data.mark_query = 1; | |
446 | strbuf_expand(&buf, opt->format, expand_format, &data); | |
447 | data.mark_query = 0; | |
32145943 JS |
448 | if (opt->cmdmode) |
449 | data.split_on_whitespace = 1; | |
05d5667f | 450 | |
845de33a | 451 | if (opt->all_objects) { |
27b5c1a0 | 452 | struct object_info empty = OBJECT_INFO_INIT; |
845de33a JK |
453 | if (!memcmp(&data.info, &empty, sizeof(empty))) |
454 | data.skip_object_info = 1; | |
455 | } | |
456 | ||
6554dfa9 JK |
457 | /* |
458 | * If we are printing out the object, then always fill in the type, | |
459 | * since we will want to decide whether or not to stream. | |
460 | */ | |
461 | if (opt->print_contents) | |
462 | data.info.typep = &data.type; | |
463 | ||
6a951937 | 464 | if (opt->all_objects) { |
3115ee45 | 465 | struct sha1_array sa = SHA1_ARRAY_INIT; |
6a951937 | 466 | struct object_cb_data cb; |
3115ee45 JK |
467 | |
468 | for_each_loose_object(batch_loose_object, &sa, 0); | |
469 | for_each_packed_object(batch_packed_object, &sa, 0); | |
470 | ||
6a951937 JK |
471 | cb.opt = opt; |
472 | cb.expand = &data; | |
3115ee45 JK |
473 | sha1_array_for_each_unique(&sa, batch_object_cb, &cb); |
474 | ||
475 | sha1_array_clear(&sa); | |
6a951937 JK |
476 | return 0; |
477 | } | |
478 | ||
25fba78d JK |
479 | /* |
480 | * We are going to call get_sha1 on a potentially very large number of | |
481 | * objects. In most large cases, these will be actual object sha1s. The | |
482 | * cost to double-check that each one is not also a ref (just so we can | |
483 | * warn) ends up dwarfing the actual cost of the object lookups | |
484 | * themselves. We can work around it by just turning off the warning. | |
485 | */ | |
a42fcd15 | 486 | save_warning = warn_on_object_refname_ambiguity; |
25fba78d JK |
487 | warn_on_object_refname_ambiguity = 0; |
488 | ||
b42ca3dd | 489 | while (strbuf_getline(&buf, stdin) != EOF) { |
97be0407 JK |
490 | if (data.split_on_whitespace) { |
491 | /* | |
492 | * Split at first whitespace, tying off the beginning | |
493 | * of the string and saving the remainder (or NULL) in | |
494 | * data.rest. | |
495 | */ | |
496 | char *p = strpbrk(buf.buf, " \t"); | |
497 | if (p) { | |
498 | while (*p && strchr(" \t", *p)) | |
499 | *p++ = '\0'; | |
500 | } | |
501 | data.rest = p; | |
502 | } | |
503 | ||
82330950 | 504 | batch_one_object(buf.buf, opt, &data); |
05d5667f AR |
505 | } |
506 | ||
648027c4 | 507 | strbuf_release(&buf); |
a42fcd15 | 508 | warn_on_object_refname_ambiguity = save_warning; |
07e23839 | 509 | return retval; |
05d5667f AR |
510 | } |
511 | ||
15d8e565 | 512 | static const char * const cat_file_usage[] = { |
7889ed25 JH |
513 | N_("git cat-file (-t [--allow-unknown-type] | -s [--allow-unknown-type] | -e | -p | <type> | --textconv | --filters) [--path=<path>] <object>"), |
514 | N_("git cat-file (--batch | --batch-check) [--follow-symlinks] [--textconv | --filters]"), | |
15d8e565 MB |
515 | NULL |
516 | }; | |
4814dbe8 | 517 | |
e5fba602 CP |
518 | static int git_cat_file_config(const char *var, const char *value, void *cb) |
519 | { | |
6680a087 | 520 | if (userdiff_config(var, value) < 0) |
e5fba602 | 521 | return -1; |
e5fba602 CP |
522 | |
523 | return git_default_config(var, value, cb); | |
524 | } | |
525 | ||
b71bd480 JK |
526 | static int batch_option_callback(const struct option *opt, |
527 | const char *arg, | |
528 | int unset) | |
529 | { | |
530 | struct batch_options *bo = opt->value; | |
531 | ||
122d5346 DT |
532 | if (bo->enabled) { |
533 | return 1; | |
b71bd480 JK |
534 | } |
535 | ||
536 | bo->enabled = 1; | |
537 | bo->print_contents = !strcmp(opt->long_name, "batch"); | |
93d2a607 | 538 | bo->format = arg; |
b71bd480 JK |
539 | |
540 | return 0; | |
541 | } | |
542 | ||
9cf71b17 AR |
543 | int cmd_cat_file(int argc, const char **argv, const char *prefix) |
544 | { | |
b71bd480 | 545 | int opt = 0; |
4814dbe8 | 546 | const char *exp_type = NULL, *obj_name = NULL; |
b71bd480 | 547 | struct batch_options batch = {0}; |
39e4ae38 | 548 | int unknown_type = 0; |
9cf71b17 | 549 | |
15d8e565 | 550 | const struct option options[] = { |
d68faec7 | 551 | OPT_GROUP(N_("<type> can be one of: blob, tree, commit, tag")), |
b48158ac KN |
552 | OPT_CMDMODE('t', NULL, &opt, N_("show object type"), 't'), |
553 | OPT_CMDMODE('s', NULL, &opt, N_("show object size"), 's'), | |
554 | OPT_CMDMODE('e', NULL, &opt, | |
d68faec7 | 555 | N_("exit with zero when there's no error"), 'e'), |
b48158ac KN |
556 | OPT_CMDMODE('p', NULL, &opt, N_("pretty-print object's content"), 'p'), |
557 | OPT_CMDMODE(0, "textconv", &opt, | |
d68faec7 | 558 | N_("for blob objects, run textconv on object's content"), 'c'), |
b9e62f60 JS |
559 | OPT_CMDMODE(0, "filters", &opt, |
560 | N_("for blob objects, run filters on object's content"), 'w'), | |
7bcf3414 JS |
561 | OPT_STRING(0, "path", &force_path, N_("blob"), |
562 | N_("use a specific path for --textconv/--filters")), | |
ad42f28d | 563 | OPT_BOOL(0, "allow-unknown-type", &unknown_type, |
39e4ae38 | 564 | N_("allow -s and -t to work with broken/corrupt objects")), |
fc4937c3 | 565 | OPT_BOOL(0, "buffer", &batch.buffer_output, N_("buffer --batch output")), |
93d2a607 | 566 | { OPTION_CALLBACK, 0, "batch", &batch, "format", |
b71bd480 | 567 | N_("show info and content of objects fed from the standard input"), |
93d2a607 JK |
568 | PARSE_OPT_OPTARG, batch_option_callback }, |
569 | { OPTION_CALLBACK, 0, "batch-check", &batch, "format", | |
b71bd480 | 570 | N_("show info about objects fed from the standard input"), |
93d2a607 | 571 | PARSE_OPT_OPTARG, batch_option_callback }, |
122d5346 DT |
572 | OPT_BOOL(0, "follow-symlinks", &batch.follow_symlinks, |
573 | N_("follow in-tree symlinks (used with --batch or --batch-check)")), | |
6a951937 JK |
574 | OPT_BOOL(0, "batch-all-objects", &batch.all_objects, |
575 | N_("show all objects with --batch or --batch-check")), | |
15d8e565 MB |
576 | OPT_END() |
577 | }; | |
a8128ed6 | 578 | |
e5fba602 | 579 | git_config(git_cat_file_config, NULL); |
4814dbe8 | 580 | |
6a36e1e7 | 581 | batch.buffer_output = -1; |
37782920 | 582 | argc = parse_options(argc, argv, prefix, options, cat_file_usage, 0); |
05d5667f | 583 | |
15d8e565 | 584 | if (opt) { |
32145943 JS |
585 | if (batch.enabled && (opt == 'c' || opt == 'w')) |
586 | batch.cmdmode = opt; | |
587 | else if (argc == 1) | |
15d8e565 MB |
588 | obj_name = argv[0]; |
589 | else | |
590 | usage_with_options(cat_file_usage, options); | |
591 | } | |
b71bd480 | 592 | if (!opt && !batch.enabled) { |
15d8e565 MB |
593 | if (argc == 2) { |
594 | exp_type = argv[0]; | |
595 | obj_name = argv[1]; | |
596 | } else | |
597 | usage_with_options(cat_file_usage, options); | |
598 | } | |
32145943 JS |
599 | if (batch.enabled) { |
600 | if (batch.cmdmode != opt || argc) | |
601 | usage_with_options(cat_file_usage, options); | |
602 | if (batch.cmdmode && batch.all_objects) | |
603 | die("--batch-all-objects cannot be combined with " | |
604 | "--textconv nor with --filters"); | |
9cf71b17 AR |
605 | } |
606 | ||
6a951937 | 607 | if ((batch.follow_symlinks || batch.all_objects) && !batch.enabled) { |
122d5346 DT |
608 | usage_with_options(cat_file_usage, options); |
609 | } | |
610 | ||
7bcf3414 JS |
611 | if (force_path && opt != 'c' && opt != 'w') { |
612 | error("--path=<path> needs --textconv or --filters"); | |
613 | usage_with_options(cat_file_usage, options); | |
614 | } | |
615 | ||
32145943 JS |
616 | if (force_path && batch.enabled) { |
617 | error("--path=<path> incompatible with --batch"); | |
618 | usage_with_options(cat_file_usage, options); | |
619 | } | |
620 | ||
6a36e1e7 JK |
621 | if (batch.buffer_output < 0) |
622 | batch.buffer_output = batch.all_objects; | |
623 | ||
b71bd480 JK |
624 | if (batch.enabled) |
625 | return batch_objects(&batch); | |
05d5667f | 626 | |
39e4ae38 KN |
627 | if (unknown_type && opt != 't' && opt != 's') |
628 | die("git cat-file --allow-unknown-type: use with -s or -t"); | |
629 | return cat_one_file(opt, exp_type, obj_name, unknown_type); | |
9cf71b17 | 630 | } |