]>
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" |
b2141fc1 | 7 | #include "config.h" |
f81daefe | 8 | #include "builtin.h" |
3a35cb2e | 9 | #include "diff.h" |
15d8e565 | 10 | #include "parse-options.h" |
e5fba602 | 11 | #include "userdiff.h" |
00c8fd49 | 12 | #include "streaming.h" |
122d5346 | 13 | #include "tree-walk.h" |
3115ee45 | 14 | #include "sha1-array.h" |
7709f468 | 15 | #include "packfile.h" |
15d8e565 | 16 | |
bfd15594 JK |
17 | struct batch_options { |
18 | int enabled; | |
19 | int follow_symlinks; | |
20 | int print_contents; | |
fc4937c3 | 21 | int buffer_output; |
6a951937 | 22 | int all_objects; |
32145943 | 23 | int cmdmode; /* may be 'w' or 'c' for --filters or --textconv */ |
bfd15594 JK |
24 | const char *format; |
25 | }; | |
26 | ||
7bcf3414 JS |
27 | static const char *force_path; |
28 | ||
b9e62f60 | 29 | static int filter_object(const char *path, unsigned mode, |
7889ed25 | 30 | const struct object_id *oid, |
b9e62f60 JS |
31 | char **buf, unsigned long *size) |
32 | { | |
33 | enum object_type type; | |
34 | ||
7889ed25 | 35 | *buf = read_sha1_file(oid->hash, &type, size); |
b9e62f60 JS |
36 | if (!*buf) |
37 | return error(_("cannot read object %s '%s'"), | |
7889ed25 | 38 | oid_to_hex(oid), path); |
b9e62f60 JS |
39 | if ((type == OBJ_BLOB) && S_ISREG(mode)) { |
40 | struct strbuf strbuf = STRBUF_INIT; | |
41 | if (convert_to_working_tree(path, *buf, *size, &strbuf)) { | |
42 | free(*buf); | |
43 | *size = strbuf.len; | |
44 | *buf = strbuf_detach(&strbuf, NULL); | |
45 | } | |
46 | } | |
47 | ||
48 | return 0; | |
49 | } | |
50 | ||
39e4ae38 KN |
51 | static int cat_one_file(int opt, const char *exp_type, const char *obj_name, |
52 | int unknown_type) | |
e83c5163 | 53 | { |
63ecb99e | 54 | struct object_id oid; |
21666f1a | 55 | enum object_type type; |
e5fba602 | 56 | char *buf; |
e83c5163 | 57 | unsigned long size; |
e5fba602 | 58 | struct object_context obj_context; |
27b5c1a0 | 59 | struct object_info oi = OBJECT_INFO_INIT; |
39e4ae38 | 60 | struct strbuf sb = STRBUF_INIT; |
1f0c0d36 | 61 | unsigned flags = OBJECT_INFO_LOOKUP_REPLACE; |
7bcf3414 | 62 | const char *path = force_path; |
39e4ae38 KN |
63 | |
64 | if (unknown_type) | |
19fc5e84 | 65 | flags |= OBJECT_INFO_ALLOW_UNKNOWN_TYPE; |
2b6854c8 | 66 | |
321c89bf | 67 | if (get_oid_with_context(obj_name, GET_OID_RECORD_PATH, |
e82caf38 | 68 | &oid, &obj_context)) |
2b6854c8 | 69 | die("Not a valid object name %s", obj_name); |
7950571a | 70 | |
7bcf3414 JS |
71 | if (!path) |
72 | path = obj_context.path; | |
73 | if (obj_context.mode == S_IFINVALID) | |
74 | obj_context.mode = 0100644; | |
75 | ||
7950571a PA |
76 | buf = NULL; |
77 | switch (opt) { | |
78 | case 't': | |
39e4ae38 | 79 | oi.typename = &sb; |
63ecb99e | 80 | if (sha1_object_info_extended(oid.hash, &oi, flags) < 0) |
39e4ae38 KN |
81 | die("git cat-file: could not get object info"); |
82 | if (sb.len) { | |
83 | printf("%s\n", sb.buf); | |
84 | strbuf_release(&sb); | |
f2a06330 | 85 | return 0; |
11e7d5c5 | 86 | } |
7950571a PA |
87 | break; |
88 | ||
89 | case 's': | |
39e4ae38 | 90 | oi.sizep = &size; |
63ecb99e | 91 | if (sha1_object_info_extended(oid.hash, &oi, flags) < 0) |
39e4ae38 KN |
92 | die("git cat-file: could not get object info"); |
93 | printf("%lu\n", size); | |
94 | return 0; | |
7950571a PA |
95 | |
96 | case 'e': | |
63ecb99e | 97 | return !has_object_file(&oid); |
7950571a | 98 | |
b9e62f60 | 99 | case 'w': |
cc0ea7c9 | 100 | if (!path) |
b9e62f60 JS |
101 | die("git cat-file --filters %s: <object> must be " |
102 | "<sha1:path>", obj_name); | |
103 | ||
7bcf3414 | 104 | if (filter_object(path, obj_context.mode, |
7889ed25 | 105 | &oid, &buf, &size)) |
b9e62f60 JS |
106 | return -1; |
107 | break; | |
108 | ||
3ac21617 | 109 | case 'c': |
cc0ea7c9 | 110 | if (!path) |
3ac21617 MG |
111 | die("git cat-file --textconv %s: <object> must be <sha1:path>", |
112 | obj_name); | |
113 | ||
7889ed25 | 114 | if (textconv_object(path, obj_context.mode, &oid, 1, &buf, &size)) |
3ac21617 | 115 | break; |
1cf01a34 | 116 | /* else fallthrough */ |
3ac21617 | 117 | |
a0f15fa5 | 118 | case 'p': |
63ecb99e | 119 | type = sha1_object_info(oid.hash, NULL); |
21666f1a | 120 | if (type < 0) |
2b6854c8 | 121 | die("Not a valid object name %s", obj_name); |
a0f15fa5 JH |
122 | |
123 | /* custom pretty-print here */ | |
2b6854c8 | 124 | if (type == OBJ_TREE) { |
66dbfd55 GV |
125 | const char *ls_args[3] = { NULL }; |
126 | ls_args[0] = "ls-tree"; | |
127 | ls_args[1] = obj_name; | |
2b6854c8 SP |
128 | return cmd_ls_tree(2, ls_args, NULL); |
129 | } | |
a0f15fa5 | 130 | |
00c8fd49 | 131 | if (type == OBJ_BLOB) |
7eda0e4f | 132 | return stream_blob_to_fd(1, &oid, NULL, 0); |
63ecb99e | 133 | buf = read_sha1_file(oid.hash, &type, &size); |
a0f15fa5 | 134 | if (!buf) |
2b6854c8 | 135 | die("Cannot read object %s", obj_name); |
a0f15fa5 JH |
136 | |
137 | /* otherwise just spit out the data */ | |
138 | break; | |
e5fba602 | 139 | |
7950571a | 140 | case 0: |
00c8fd49 | 141 | if (type_from_string(exp_type) == OBJ_BLOB) { |
63ecb99e | 142 | struct object_id blob_oid; |
143 | if (sha1_object_info(oid.hash, NULL) == OBJ_TAG) { | |
144 | char *buffer = read_sha1_file(oid.hash, &type, &size); | |
e3f1da98 RS |
145 | const char *target; |
146 | if (!skip_prefix(buffer, "object ", &target) || | |
63ecb99e | 147 | get_oid_hex(target, &blob_oid)) |
148 | die("%s not a valid tag", oid_to_hex(&oid)); | |
00c8fd49 NTND |
149 | free(buffer); |
150 | } else | |
63ecb99e | 151 | oidcpy(&blob_oid, &oid); |
00c8fd49 | 152 | |
63ecb99e | 153 | if (sha1_object_info(blob_oid.hash, NULL) == OBJ_BLOB) |
7eda0e4f | 154 | return stream_blob_to_fd(1, &blob_oid, NULL, 0); |
00c8fd49 NTND |
155 | /* |
156 | * we attempted to dereference a tag to a blob | |
157 | * and failed; there may be new dereference | |
158 | * mechanisms this code is not aware of. | |
159 | * fall-back to the usual case. | |
160 | */ | |
161 | } | |
63ecb99e | 162 | buf = read_object_with_reference(oid.hash, exp_type, &size, NULL); |
7950571a PA |
163 | break; |
164 | ||
165 | default: | |
d7530708 | 166 | die("git cat-file: unknown option: %s", exp_type); |
bf0c6e83 LT |
167 | } |
168 | ||
11e7d5c5 | 169 | if (!buf) |
34baebce | 170 | die("git cat-file %s: bad file", obj_name); |
11e7d5c5 | 171 | |
7230e6d0 | 172 | write_or_die(1, buf, size); |
05c2b7ba | 173 | free(buf); |
dc944b65 | 174 | free(obj_context.path); |
bf0c6e83 | 175 | return 0; |
e83c5163 | 176 | } |
9cf71b17 | 177 | |
93d2a607 | 178 | struct expand_data { |
cd4f77be | 179 | struct object_id oid; |
93d2a607 JK |
180 | enum object_type type; |
181 | unsigned long size; | |
166df26f | 182 | off_t disk_size; |
97be0407 | 183 | const char *rest; |
cd4f77be | 184 | struct object_id delta_base_oid; |
93d2a607 JK |
185 | |
186 | /* | |
187 | * If mark_query is true, we do not expand anything, but rather | |
188 | * just mark the object_info with items we wish to query. | |
189 | */ | |
190 | int mark_query; | |
191 | ||
97be0407 JK |
192 | /* |
193 | * Whether to split the input on whitespace before feeding it to | |
194 | * get_sha1; this is decided during the mark_query phase based on | |
195 | * whether we have a %(rest) token in our format. | |
196 | */ | |
197 | int split_on_whitespace; | |
198 | ||
93d2a607 JK |
199 | /* |
200 | * After a mark_query run, this object_info is set up to be | |
201 | * passed to sha1_object_info_extended. It will point to the data | |
202 | * elements above, so you can retrieve the response from there. | |
203 | */ | |
204 | struct object_info info; | |
845de33a JK |
205 | |
206 | /* | |
207 | * This flag will be true if the requested batch format and options | |
208 | * don't require us to call sha1_object_info, which can then be | |
209 | * optimized out. | |
210 | */ | |
211 | unsigned skip_object_info : 1; | |
93d2a607 JK |
212 | }; |
213 | ||
214 | static int is_atom(const char *atom, const char *s, int slen) | |
215 | { | |
216 | int alen = strlen(atom); | |
217 | return alen == slen && !memcmp(atom, s, alen); | |
218 | } | |
219 | ||
220 | static void expand_atom(struct strbuf *sb, const char *atom, int len, | |
221 | void *vdata) | |
222 | { | |
223 | struct expand_data *data = vdata; | |
224 | ||
225 | if (is_atom("objectname", atom, len)) { | |
226 | if (!data->mark_query) | |
cd4f77be | 227 | strbuf_addstr(sb, oid_to_hex(&data->oid)); |
93d2a607 | 228 | } else if (is_atom("objecttype", atom, len)) { |
5b086407 JK |
229 | if (data->mark_query) |
230 | data->info.typep = &data->type; | |
231 | else | |
93d2a607 JK |
232 | strbuf_addstr(sb, typename(data->type)); |
233 | } else if (is_atom("objectsize", atom, len)) { | |
234 | if (data->mark_query) | |
235 | data->info.sizep = &data->size; | |
236 | else | |
237 | strbuf_addf(sb, "%lu", data->size); | |
a4ac1061 JK |
238 | } else if (is_atom("objectsize:disk", atom, len)) { |
239 | if (data->mark_query) | |
240 | data->info.disk_sizep = &data->disk_size; | |
241 | else | |
166df26f | 242 | strbuf_addf(sb, "%"PRIuMAX, (uintmax_t)data->disk_size); |
97be0407 JK |
243 | } else if (is_atom("rest", atom, len)) { |
244 | if (data->mark_query) | |
245 | data->split_on_whitespace = 1; | |
246 | else if (data->rest) | |
247 | strbuf_addstr(sb, data->rest); | |
65ea9c3c JK |
248 | } else if (is_atom("deltabase", atom, len)) { |
249 | if (data->mark_query) | |
cd4f77be | 250 | data->info.delta_base_sha1 = data->delta_base_oid.hash; |
65ea9c3c | 251 | else |
cd4f77be | 252 | strbuf_addstr(sb, |
253 | oid_to_hex(&data->delta_base_oid)); | |
93d2a607 JK |
254 | } else |
255 | die("unknown format element: %.*s", len, atom); | |
256 | } | |
257 | ||
258 | static size_t expand_format(struct strbuf *sb, const char *start, void *data) | |
259 | { | |
260 | const char *end; | |
261 | ||
262 | if (*start != '(') | |
263 | return 0; | |
264 | end = strchr(start + 1, ')'); | |
265 | if (!end) | |
266 | die("format element '%s' does not end in ')'", start); | |
267 | ||
268 | expand_atom(sb, start + 1, end - start - 1, data); | |
269 | ||
270 | return end - start + 1; | |
271 | } | |
272 | ||
fc4937c3 JK |
273 | static void batch_write(struct batch_options *opt, const void *data, int len) |
274 | { | |
275 | if (opt->buffer_output) { | |
276 | if (fwrite(data, 1, len, stdout) != len) | |
277 | die_errno("unable to write to stdout"); | |
278 | } else | |
279 | write_or_die(1, data, len); | |
280 | } | |
281 | ||
282 | static void print_object_or_die(struct batch_options *opt, struct expand_data *data) | |
98e2092b | 283 | { |
63ecb99e | 284 | const struct object_id *oid = &data->oid; |
370c9268 | 285 | |
6554dfa9 JK |
286 | assert(data->info.typep); |
287 | ||
370c9268 | 288 | if (data->type == OBJ_BLOB) { |
fc4937c3 JK |
289 | if (opt->buffer_output) |
290 | fflush(stdout); | |
32145943 JS |
291 | if (opt->cmdmode) { |
292 | char *contents; | |
293 | unsigned long size; | |
294 | ||
295 | if (!data->rest) | |
7889ed25 | 296 | die("missing path for '%s'", oid_to_hex(oid)); |
32145943 JS |
297 | |
298 | if (opt->cmdmode == 'w') { | |
7889ed25 | 299 | if (filter_object(data->rest, 0100644, oid, |
32145943 JS |
300 | &contents, &size)) |
301 | die("could not convert '%s' %s", | |
7889ed25 | 302 | oid_to_hex(oid), data->rest); |
32145943 JS |
303 | } else if (opt->cmdmode == 'c') { |
304 | enum object_type type; | |
7889ed25 | 305 | if (!textconv_object(data->rest, 0100644, oid, |
32145943 | 306 | 1, &contents, &size)) |
7889ed25 | 307 | contents = read_sha1_file(oid->hash, &type, |
32145943 JS |
308 | &size); |
309 | if (!contents) | |
310 | die("could not convert '%s' %s", | |
7889ed25 | 311 | oid_to_hex(oid), data->rest); |
32145943 JS |
312 | } else |
313 | die("BUG: invalid cmdmode: %c", opt->cmdmode); | |
314 | batch_write(opt, contents, size); | |
315 | free(contents); | |
7889ed25 | 316 | } else if (stream_blob_to_fd(1, oid, NULL, 0) < 0) |
63ecb99e | 317 | die("unable to stream %s to stdout", oid_to_hex(oid)); |
98e2092b JK |
318 | } |
319 | else { | |
370c9268 JK |
320 | enum object_type type; |
321 | unsigned long size; | |
98e2092b JK |
322 | void *contents; |
323 | ||
63ecb99e | 324 | contents = read_sha1_file(oid->hash, &type, &size); |
98e2092b | 325 | if (!contents) |
63ecb99e | 326 | die("object %s disappeared", oid_to_hex(oid)); |
370c9268 | 327 | if (type != data->type) |
63ecb99e | 328 | die("object %s changed type!?", oid_to_hex(oid)); |
6554dfa9 | 329 | if (data->info.sizep && size != data->size) |
63ecb99e | 330 | die("object %s changed size!?", oid_to_hex(oid)); |
98e2092b | 331 | |
fc4937c3 | 332 | batch_write(opt, contents, size); |
98e2092b JK |
333 | free(contents); |
334 | } | |
335 | } | |
336 | ||
44b877e9 JK |
337 | static void batch_object_write(const char *obj_name, struct batch_options *opt, |
338 | struct expand_data *data) | |
339 | { | |
340 | struct strbuf buf = STRBUF_INIT; | |
341 | ||
845de33a | 342 | if (!data->skip_object_info && |
1f0c0d36 JT |
343 | sha1_object_info_extended(data->oid.hash, &data->info, |
344 | OBJECT_INFO_LOOKUP_REPLACE) < 0) { | |
cd4f77be | 345 | printf("%s missing\n", |
346 | obj_name ? obj_name : oid_to_hex(&data->oid)); | |
44b877e9 JK |
347 | fflush(stdout); |
348 | return; | |
349 | } | |
350 | ||
351 | strbuf_expand(&buf, opt->format, expand_format, data); | |
352 | strbuf_addch(&buf, '\n'); | |
353 | batch_write(opt, buf.buf, buf.len); | |
354 | strbuf_release(&buf); | |
355 | ||
356 | if (opt->print_contents) { | |
357 | print_object_or_die(opt, data); | |
358 | batch_write(opt, "\n", 1); | |
359 | } | |
360 | } | |
361 | ||
82330950 JK |
362 | static void batch_one_object(const char *obj_name, struct batch_options *opt, |
363 | struct expand_data *data) | |
05d5667f | 364 | { |
122d5346 | 365 | struct object_context ctx; |
321c89bf | 366 | int flags = opt->follow_symlinks ? GET_OID_FOLLOW_SYMLINKS : 0; |
122d5346 | 367 | enum follow_symlinks_result result; |
05d5667f | 368 | |
e82caf38 | 369 | result = get_oid_with_context(obj_name, flags, &data->oid, &ctx); |
122d5346 DT |
370 | if (result != FOUND) { |
371 | switch (result) { | |
372 | case MISSING_OBJECT: | |
373 | printf("%s missing\n", obj_name); | |
374 | break; | |
375 | case DANGLING_SYMLINK: | |
376 | printf("dangling %"PRIuMAX"\n%s\n", | |
377 | (uintmax_t)strlen(obj_name), obj_name); | |
378 | break; | |
379 | case SYMLINK_LOOP: | |
380 | printf("loop %"PRIuMAX"\n%s\n", | |
381 | (uintmax_t)strlen(obj_name), obj_name); | |
382 | break; | |
383 | case NOT_DIR: | |
384 | printf("notdir %"PRIuMAX"\n%s\n", | |
385 | (uintmax_t)strlen(obj_name), obj_name); | |
386 | break; | |
387 | default: | |
388 | die("BUG: unknown get_sha1_with_context result %d\n", | |
389 | result); | |
390 | break; | |
391 | } | |
392 | fflush(stdout); | |
82330950 | 393 | return; |
122d5346 DT |
394 | } |
395 | ||
396 | if (ctx.mode == 0) { | |
397 | printf("symlink %"PRIuMAX"\n%s\n", | |
398 | (uintmax_t)ctx.symlink_path.len, | |
399 | ctx.symlink_path.buf); | |
422b2063 | 400 | fflush(stdout); |
82330950 | 401 | return; |
05d5667f AR |
402 | } |
403 | ||
44b877e9 | 404 | batch_object_write(obj_name, opt, data); |
05d5667f AR |
405 | } |
406 | ||
6a951937 JK |
407 | struct object_cb_data { |
408 | struct batch_options *opt; | |
409 | struct expand_data *expand; | |
410 | }; | |
411 | ||
1b7ba794 | 412 | static int batch_object_cb(const struct object_id *oid, void *vdata) |
6a951937 | 413 | { |
3115ee45 | 414 | struct object_cb_data *data = vdata; |
1b7ba794 | 415 | oidcpy(&data->expand->oid, oid); |
6a951937 | 416 | batch_object_write(NULL, data->opt, data->expand); |
16ddcd40 | 417 | return 0; |
6a951937 JK |
418 | } |
419 | ||
76c1d9a0 | 420 | static int batch_loose_object(const struct object_id *oid, |
6a951937 JK |
421 | const char *path, |
422 | void *data) | |
423 | { | |
910650d2 | 424 | oid_array_append(data, oid); |
3115ee45 | 425 | return 0; |
6a951937 JK |
426 | } |
427 | ||
76c1d9a0 | 428 | static int batch_packed_object(const struct object_id *oid, |
6a951937 JK |
429 | struct packed_git *pack, |
430 | uint32_t pos, | |
431 | void *data) | |
432 | { | |
910650d2 | 433 | oid_array_append(data, oid); |
3115ee45 | 434 | return 0; |
6a951937 JK |
435 | } |
436 | ||
b71bd480 | 437 | static int batch_objects(struct batch_options *opt) |
05d5667f | 438 | { |
f285a2d7 | 439 | struct strbuf buf = STRBUF_INIT; |
93d2a607 | 440 | struct expand_data data; |
a42fcd15 | 441 | int save_warning; |
07e23839 | 442 | int retval = 0; |
93d2a607 JK |
443 | |
444 | if (!opt->format) | |
445 | opt->format = "%(objectname) %(objecttype) %(objectsize)"; | |
446 | ||
447 | /* | |
448 | * Expand once with our special mark_query flag, which will prime the | |
449 | * object_info to be handed to sha1_object_info_extended for each | |
450 | * object. | |
451 | */ | |
452 | memset(&data, 0, sizeof(data)); | |
453 | data.mark_query = 1; | |
454 | strbuf_expand(&buf, opt->format, expand_format, &data); | |
455 | data.mark_query = 0; | |
32145943 JS |
456 | if (opt->cmdmode) |
457 | data.split_on_whitespace = 1; | |
05d5667f | 458 | |
845de33a | 459 | if (opt->all_objects) { |
27b5c1a0 | 460 | struct object_info empty = OBJECT_INFO_INIT; |
845de33a JK |
461 | if (!memcmp(&data.info, &empty, sizeof(empty))) |
462 | data.skip_object_info = 1; | |
463 | } | |
464 | ||
6554dfa9 JK |
465 | /* |
466 | * If we are printing out the object, then always fill in the type, | |
467 | * since we will want to decide whether or not to stream. | |
468 | */ | |
469 | if (opt->print_contents) | |
470 | data.info.typep = &data.type; | |
471 | ||
6a951937 | 472 | if (opt->all_objects) { |
910650d2 | 473 | struct oid_array sa = OID_ARRAY_INIT; |
6a951937 | 474 | struct object_cb_data cb; |
3115ee45 JK |
475 | |
476 | for_each_loose_object(batch_loose_object, &sa, 0); | |
477 | for_each_packed_object(batch_packed_object, &sa, 0); | |
8b4c0103 JT |
478 | if (repository_format_partial_clone) |
479 | warning("This repository has extensions.partialClone set. Some objects may not be loaded."); | |
3115ee45 | 480 | |
6a951937 JK |
481 | cb.opt = opt; |
482 | cb.expand = &data; | |
910650d2 | 483 | oid_array_for_each_unique(&sa, batch_object_cb, &cb); |
3115ee45 | 484 | |
910650d2 | 485 | oid_array_clear(&sa); |
6a951937 JK |
486 | return 0; |
487 | } | |
488 | ||
25fba78d JK |
489 | /* |
490 | * We are going to call get_sha1 on a potentially very large number of | |
491 | * objects. In most large cases, these will be actual object sha1s. The | |
492 | * cost to double-check that each one is not also a ref (just so we can | |
493 | * warn) ends up dwarfing the actual cost of the object lookups | |
494 | * themselves. We can work around it by just turning off the warning. | |
495 | */ | |
a42fcd15 | 496 | save_warning = warn_on_object_refname_ambiguity; |
25fba78d JK |
497 | warn_on_object_refname_ambiguity = 0; |
498 | ||
b42ca3dd | 499 | while (strbuf_getline(&buf, stdin) != EOF) { |
97be0407 JK |
500 | if (data.split_on_whitespace) { |
501 | /* | |
502 | * Split at first whitespace, tying off the beginning | |
503 | * of the string and saving the remainder (or NULL) in | |
504 | * data.rest. | |
505 | */ | |
506 | char *p = strpbrk(buf.buf, " \t"); | |
507 | if (p) { | |
508 | while (*p && strchr(" \t", *p)) | |
509 | *p++ = '\0'; | |
510 | } | |
511 | data.rest = p; | |
512 | } | |
513 | ||
82330950 | 514 | batch_one_object(buf.buf, opt, &data); |
05d5667f AR |
515 | } |
516 | ||
648027c4 | 517 | strbuf_release(&buf); |
a42fcd15 | 518 | warn_on_object_refname_ambiguity = save_warning; |
07e23839 | 519 | return retval; |
05d5667f AR |
520 | } |
521 | ||
15d8e565 | 522 | static const char * const cat_file_usage[] = { |
7889ed25 JH |
523 | N_("git cat-file (-t [--allow-unknown-type] | -s [--allow-unknown-type] | -e | -p | <type> | --textconv | --filters) [--path=<path>] <object>"), |
524 | N_("git cat-file (--batch | --batch-check) [--follow-symlinks] [--textconv | --filters]"), | |
15d8e565 MB |
525 | NULL |
526 | }; | |
4814dbe8 | 527 | |
e5fba602 CP |
528 | static int git_cat_file_config(const char *var, const char *value, void *cb) |
529 | { | |
6680a087 | 530 | if (userdiff_config(var, value) < 0) |
e5fba602 | 531 | return -1; |
e5fba602 CP |
532 | |
533 | return git_default_config(var, value, cb); | |
534 | } | |
535 | ||
b71bd480 JK |
536 | static int batch_option_callback(const struct option *opt, |
537 | const char *arg, | |
538 | int unset) | |
539 | { | |
540 | struct batch_options *bo = opt->value; | |
541 | ||
122d5346 DT |
542 | if (bo->enabled) { |
543 | return 1; | |
b71bd480 JK |
544 | } |
545 | ||
546 | bo->enabled = 1; | |
547 | bo->print_contents = !strcmp(opt->long_name, "batch"); | |
93d2a607 | 548 | bo->format = arg; |
b71bd480 JK |
549 | |
550 | return 0; | |
551 | } | |
552 | ||
9cf71b17 AR |
553 | int cmd_cat_file(int argc, const char **argv, const char *prefix) |
554 | { | |
b71bd480 | 555 | int opt = 0; |
4814dbe8 | 556 | const char *exp_type = NULL, *obj_name = NULL; |
b71bd480 | 557 | struct batch_options batch = {0}; |
39e4ae38 | 558 | int unknown_type = 0; |
9cf71b17 | 559 | |
15d8e565 | 560 | const struct option options[] = { |
d68faec7 | 561 | OPT_GROUP(N_("<type> can be one of: blob, tree, commit, tag")), |
b48158ac KN |
562 | OPT_CMDMODE('t', NULL, &opt, N_("show object type"), 't'), |
563 | OPT_CMDMODE('s', NULL, &opt, N_("show object size"), 's'), | |
564 | OPT_CMDMODE('e', NULL, &opt, | |
d68faec7 | 565 | N_("exit with zero when there's no error"), 'e'), |
b48158ac KN |
566 | OPT_CMDMODE('p', NULL, &opt, N_("pretty-print object's content"), 'p'), |
567 | OPT_CMDMODE(0, "textconv", &opt, | |
d68faec7 | 568 | N_("for blob objects, run textconv on object's content"), 'c'), |
b9e62f60 JS |
569 | OPT_CMDMODE(0, "filters", &opt, |
570 | N_("for blob objects, run filters on object's content"), 'w'), | |
7bcf3414 JS |
571 | OPT_STRING(0, "path", &force_path, N_("blob"), |
572 | N_("use a specific path for --textconv/--filters")), | |
ad42f28d | 573 | OPT_BOOL(0, "allow-unknown-type", &unknown_type, |
39e4ae38 | 574 | N_("allow -s and -t to work with broken/corrupt objects")), |
fc4937c3 | 575 | OPT_BOOL(0, "buffer", &batch.buffer_output, N_("buffer --batch output")), |
93d2a607 | 576 | { OPTION_CALLBACK, 0, "batch", &batch, "format", |
b71bd480 | 577 | N_("show info and content of objects fed from the standard input"), |
93d2a607 JK |
578 | PARSE_OPT_OPTARG, batch_option_callback }, |
579 | { OPTION_CALLBACK, 0, "batch-check", &batch, "format", | |
b71bd480 | 580 | N_("show info about objects fed from the standard input"), |
93d2a607 | 581 | PARSE_OPT_OPTARG, batch_option_callback }, |
122d5346 DT |
582 | OPT_BOOL(0, "follow-symlinks", &batch.follow_symlinks, |
583 | N_("follow in-tree symlinks (used with --batch or --batch-check)")), | |
6a951937 JK |
584 | OPT_BOOL(0, "batch-all-objects", &batch.all_objects, |
585 | N_("show all objects with --batch or --batch-check")), | |
15d8e565 MB |
586 | OPT_END() |
587 | }; | |
a8128ed6 | 588 | |
e5fba602 | 589 | git_config(git_cat_file_config, NULL); |
4814dbe8 | 590 | |
6a36e1e7 | 591 | batch.buffer_output = -1; |
37782920 | 592 | argc = parse_options(argc, argv, prefix, options, cat_file_usage, 0); |
05d5667f | 593 | |
15d8e565 | 594 | if (opt) { |
32145943 JS |
595 | if (batch.enabled && (opt == 'c' || opt == 'w')) |
596 | batch.cmdmode = opt; | |
597 | else if (argc == 1) | |
15d8e565 MB |
598 | obj_name = argv[0]; |
599 | else | |
600 | usage_with_options(cat_file_usage, options); | |
601 | } | |
b71bd480 | 602 | if (!opt && !batch.enabled) { |
15d8e565 MB |
603 | if (argc == 2) { |
604 | exp_type = argv[0]; | |
605 | obj_name = argv[1]; | |
606 | } else | |
607 | usage_with_options(cat_file_usage, options); | |
608 | } | |
32145943 JS |
609 | if (batch.enabled) { |
610 | if (batch.cmdmode != opt || argc) | |
611 | usage_with_options(cat_file_usage, options); | |
612 | if (batch.cmdmode && batch.all_objects) | |
613 | die("--batch-all-objects cannot be combined with " | |
614 | "--textconv nor with --filters"); | |
9cf71b17 AR |
615 | } |
616 | ||
6a951937 | 617 | if ((batch.follow_symlinks || batch.all_objects) && !batch.enabled) { |
122d5346 DT |
618 | usage_with_options(cat_file_usage, options); |
619 | } | |
620 | ||
7bcf3414 JS |
621 | if (force_path && opt != 'c' && opt != 'w') { |
622 | error("--path=<path> needs --textconv or --filters"); | |
623 | usage_with_options(cat_file_usage, options); | |
624 | } | |
625 | ||
32145943 JS |
626 | if (force_path && batch.enabled) { |
627 | error("--path=<path> incompatible with --batch"); | |
628 | usage_with_options(cat_file_usage, options); | |
629 | } | |
630 | ||
6a36e1e7 JK |
631 | if (batch.buffer_output < 0) |
632 | batch.buffer_output = batch.all_objects; | |
633 | ||
b71bd480 JK |
634 | if (batch.enabled) |
635 | return batch_objects(&batch); | |
05d5667f | 636 | |
39e4ae38 KN |
637 | if (unknown_type && opt != 't' && opt != 's') |
638 | die("git cat-file --allow-unknown-type: use with -s or -t"); | |
639 | return cat_one_file(opt, exp_type, obj_name, unknown_type); | |
9cf71b17 | 640 | } |