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Commit | Line | Data |
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65056021 JH |
1 | /* |
2 | * Builtin "git diff" | |
3 | * | |
4 | * Copyright (c) 2006 Junio C Hamano | |
5 | */ | |
f8adbec9 | 6 | #define USE_THE_INDEX_COMPATIBILITY_MACROS |
65056021 | 7 | #include "cache.h" |
b2141fc1 | 8 | #include "config.h" |
8bfcb3a6 | 9 | #include "ewah/ewok.h" |
697cc8ef | 10 | #include "lockfile.h" |
6b2f2d98 | 11 | #include "color.h" |
65056021 JH |
12 | #include "commit.h" |
13 | #include "blob.h" | |
14 | #include "tag.h" | |
15 | #include "diff.h" | |
16 | #include "diffcore.h" | |
17 | #include "revision.h" | |
18 | #include "log-tree.h" | |
19 | #include "builtin.h" | |
302ad7a9 | 20 | #include "submodule.h" |
0041f09d | 21 | #include "sha1-array.h" |
65056021 | 22 | |
470faf96 TG |
23 | #define DIFF_NO_INDEX_EXPLICIT 1 |
24 | #define DIFF_NO_INDEX_IMPLICIT 2 | |
25 | ||
65056021 | 26 | static const char builtin_diff_usage[] = |
9edb8a0f | 27 | "git diff [<options>] [<commit> [<commit>]] [--] [<path>...]"; |
65056021 | 28 | |
158b06ca JK |
29 | static const char *blob_path(struct object_array_entry *entry) |
30 | { | |
31 | return entry->path ? entry->path : entry->name; | |
32 | } | |
33 | ||
65056021 JH |
34 | static void stuff_change(struct diff_options *opt, |
35 | unsigned old_mode, unsigned new_mode, | |
9c4b0f66 | 36 | const struct object_id *old_oid, |
37 | const struct object_id *new_oid, | |
38 | int old_oid_valid, | |
39 | int new_oid_valid, | |
d04ec74b JK |
40 | const char *old_path, |
41 | const char *new_path) | |
65056021 JH |
42 | { |
43 | struct diff_filespec *one, *two; | |
44 | ||
9c4b0f66 | 45 | if (!is_null_oid(old_oid) && !is_null_oid(new_oid) && |
4a7e27e9 | 46 | oideq(old_oid, new_oid) && (old_mode == new_mode)) |
65056021 JH |
47 | return; |
48 | ||
0d1e0e78 | 49 | if (opt->flags.reverse_diff) { |
35d803bc | 50 | SWAP(old_mode, new_mode); |
9c4b0f66 | 51 | SWAP(old_oid, new_oid); |
d04ec74b | 52 | SWAP(old_path, new_path); |
65056021 | 53 | } |
cd676a51 JH |
54 | |
55 | if (opt->prefix && | |
d04ec74b JK |
56 | (strncmp(old_path, opt->prefix, opt->prefix_length) || |
57 | strncmp(new_path, opt->prefix, opt->prefix_length))) | |
cd676a51 JH |
58 | return; |
59 | ||
d04ec74b JK |
60 | one = alloc_filespec(old_path); |
61 | two = alloc_filespec(new_path); | |
f9704c2d BW |
62 | fill_filespec(one, old_oid, old_oid_valid, old_mode); |
63 | fill_filespec(two, new_oid, new_oid_valid, new_mode); | |
65056021 | 64 | |
65056021 JH |
65 | diff_queue(&diff_queued_diff, one, two); |
66 | } | |
67 | ||
68 | static int builtin_diff_b_f(struct rev_info *revs, | |
69 | int argc, const char **argv, | |
42f5ba5b | 70 | struct object_array_entry **blob) |
65056021 JH |
71 | { |
72 | /* Blob vs file in the working tree*/ | |
73 | struct stat st; | |
887c6c18 | 74 | const char *path; |
65056021 | 75 | |
a610786f TH |
76 | if (argc > 1) |
77 | usage(builtin_diff_usage); | |
78 | ||
887c6c18 NTND |
79 | GUARD_PATHSPEC(&revs->prune_data, PATHSPEC_FROMTOP | PATHSPEC_LITERAL); |
80 | path = revs->prune_data.items[0].match; | |
81 | ||
65056021 | 82 | if (lstat(path, &st)) |
54214529 | 83 | die_errno(_("failed to stat '%s'"), path); |
65056021 | 84 | if (!(S_ISREG(st.st_mode) || S_ISLNK(st.st_mode))) |
54214529 | 85 | die(_("'%s': not a regular file or symlink"), path); |
01618a3a | 86 | |
a5a818ee JH |
87 | diff_set_mnemonic_prefix(&revs->diffopt, "o/", "w/"); |
88 | ||
42f5ba5b JK |
89 | if (blob[0]->mode == S_IFINVALID) |
90 | blob[0]->mode = canon_mode(st.st_mode); | |
01618a3a | 91 | |
65056021 | 92 | stuff_change(&revs->diffopt, |
42f5ba5b JK |
93 | blob[0]->mode, canon_mode(st.st_mode), |
94 | &blob[0]->item->oid, &null_oid, | |
e5450100 | 95 | 1, 0, |
30d005c0 JK |
96 | blob[0]->path ? blob[0]->path : path, |
97 | path); | |
65056021 JH |
98 | diffcore_std(&revs->diffopt); |
99 | diff_flush(&revs->diffopt); | |
100 | return 0; | |
101 | } | |
102 | ||
103 | static int builtin_diff_blobs(struct rev_info *revs, | |
104 | int argc, const char **argv, | |
42f5ba5b | 105 | struct object_array_entry **blob) |
65056021 | 106 | { |
33de80b1 | 107 | const unsigned mode = canon_mode(S_IFREG | 0644); |
65056021 | 108 | |
a610786f TH |
109 | if (argc > 1) |
110 | usage(builtin_diff_usage); | |
111 | ||
42f5ba5b JK |
112 | if (blob[0]->mode == S_IFINVALID) |
113 | blob[0]->mode = mode; | |
01618a3a | 114 | |
42f5ba5b JK |
115 | if (blob[1]->mode == S_IFINVALID) |
116 | blob[1]->mode = mode; | |
01618a3a | 117 | |
65056021 | 118 | stuff_change(&revs->diffopt, |
42f5ba5b JK |
119 | blob[0]->mode, blob[1]->mode, |
120 | &blob[0]->item->oid, &blob[1]->item->oid, | |
e5450100 | 121 | 1, 1, |
158b06ca | 122 | blob_path(blob[0]), blob_path(blob[1])); |
65056021 JH |
123 | diffcore_std(&revs->diffopt); |
124 | diff_flush(&revs->diffopt); | |
125 | return 0; | |
126 | } | |
127 | ||
128 | static int builtin_diff_index(struct rev_info *revs, | |
129 | int argc, const char **argv) | |
130 | { | |
131 | int cached = 0; | |
132 | while (1 < argc) { | |
133 | const char *arg = argv[1]; | |
2baf1850 | 134 | if (!strcmp(arg, "--cached") || !strcmp(arg, "--staged")) |
65056021 | 135 | cached = 1; |
65056021 JH |
136 | else |
137 | usage(builtin_diff_usage); | |
138 | argv++; argc--; | |
139 | } | |
140 | /* | |
141 | * Make sure there is one revision (i.e. pending object), | |
142 | * and there is no revision filtering parameters. | |
143 | */ | |
1f1e895f | 144 | if (revs->pending.nr != 1 || |
65056021 JH |
145 | revs->max_count != -1 || revs->min_age != -1 || |
146 | revs->max_age != -1) | |
147 | usage(builtin_diff_usage); | |
7349afd2 KB |
148 | if (!cached) { |
149 | setup_work_tree(); | |
5ab2a2da | 150 | if (read_cache_preload(&revs->diffopt.pathspec) < 0) { |
7349afd2 KB |
151 | perror("read_cache_preload"); |
152 | return -1; | |
153 | } | |
154 | } else if (read_cache() < 0) { | |
155 | perror("read_cache"); | |
b4e1e4a7 JH |
156 | return -1; |
157 | } | |
65056021 JH |
158 | return run_diff_index(revs, cached); |
159 | } | |
160 | ||
161 | static int builtin_diff_tree(struct rev_info *revs, | |
162 | int argc, const char **argv, | |
91de344d MH |
163 | struct object_array_entry *ent0, |
164 | struct object_array_entry *ent1) | |
65056021 | 165 | { |
9c4b0f66 | 166 | const struct object_id *(oid[2]); |
1f1e895f | 167 | int swap = 0; |
a610786f TH |
168 | |
169 | if (argc > 1) | |
170 | usage(builtin_diff_usage); | |
0fe7c1de | 171 | |
91de344d MH |
172 | /* |
173 | * We saw two trees, ent0 and ent1. If ent1 is uninteresting, | |
174 | * swap them. | |
0fe7c1de | 175 | */ |
91de344d | 176 | if (ent1->item->flags & UNINTERESTING) |
1f1e895f | 177 | swap = 1; |
9c4b0f66 | 178 | oid[swap] = &ent0->item->oid; |
179 | oid[1 - swap] = &ent1->item->oid; | |
66f414f8 | 180 | diff_tree_oid(oid[0], oid[1], "", &revs->diffopt); |
65056021 JH |
181 | log_tree_diff_flush(revs); |
182 | return 0; | |
183 | } | |
184 | ||
0fe7c1de JH |
185 | static int builtin_diff_combined(struct rev_info *revs, |
186 | int argc, const char **argv, | |
1f1e895f | 187 | struct object_array_entry *ent, |
0fe7c1de JH |
188 | int ents) |
189 | { | |
910650d2 | 190 | struct oid_array parents = OID_ARRAY_INIT; |
0fe7c1de JH |
191 | int i; |
192 | ||
a610786f TH |
193 | if (argc > 1) |
194 | usage(builtin_diff_usage); | |
195 | ||
0fe7c1de JH |
196 | if (!revs->dense_combined_merges && !revs->combine_merges) |
197 | revs->dense_combined_merges = revs->combine_merges = 1; | |
0041f09d | 198 | for (i = 1; i < ents; i++) |
910650d2 | 199 | oid_array_append(&parents, &ent[i].item->oid); |
b9acf54d | 200 | diff_tree_combined(&ent[0].item->oid, &parents, |
0fe7c1de | 201 | revs->dense_combined_merges, revs); |
910650d2 | 202 | oid_array_clear(&parents); |
0fe7c1de JH |
203 | return 0; |
204 | } | |
205 | ||
aecbf914 JH |
206 | static void refresh_index_quietly(void) |
207 | { | |
837e34eb | 208 | struct lock_file lock_file = LOCK_INIT; |
aecbf914 JH |
209 | int fd; |
210 | ||
837e34eb | 211 | fd = hold_locked_index(&lock_file, 0); |
aecbf914 JH |
212 | if (fd < 0) |
213 | return; | |
214 | discard_cache(); | |
215 | read_cache(); | |
216 | refresh_cache(REFRESH_QUIET|REFRESH_UNMERGED); | |
1b0d968b | 217 | repo_update_index_if_able(the_repository, &lock_file); |
aecbf914 JH |
218 | } |
219 | ||
0569e9b8 JH |
220 | static int builtin_diff_files(struct rev_info *revs, int argc, const char **argv) |
221 | { | |
0569e9b8 JH |
222 | unsigned int options = 0; |
223 | ||
224 | while (1 < argc && argv[1][0] == '-') { | |
225 | if (!strcmp(argv[1], "--base")) | |
226 | revs->max_count = 1; | |
227 | else if (!strcmp(argv[1], "--ours")) | |
228 | revs->max_count = 2; | |
229 | else if (!strcmp(argv[1], "--theirs")) | |
230 | revs->max_count = 3; | |
231 | else if (!strcmp(argv[1], "-q")) | |
232 | options |= DIFF_SILENT_ON_REMOVED; | |
1c370ea4 MM |
233 | else if (!strcmp(argv[1], "-h")) |
234 | usage(builtin_diff_usage); | |
0569e9b8 | 235 | else |
54214529 | 236 | return error(_("invalid option: %s"), argv[1]); |
0569e9b8 JH |
237 | argv++; argc--; |
238 | } | |
239 | ||
903e09a3 JH |
240 | /* |
241 | * "diff --base" should not combine merges because it was not | |
242 | * asked to. "diff -c" should not densify (if the user wants | |
243 | * dense one, --cc can be explicitly asked for, or just rely | |
244 | * on the default). | |
245 | */ | |
246 | if (revs->max_count == -1 && !revs->combine_merges && | |
0569e9b8 JH |
247 | (revs->diffopt.output_format & DIFF_FORMAT_PATCH)) |
248 | revs->combine_merges = revs->dense_combined_merges = 1; | |
249 | ||
4f38f6b5 | 250 | setup_work_tree(); |
5ab2a2da | 251 | if (read_cache_preload(&revs->diffopt.pathspec) < 0) { |
671c9b7e | 252 | perror("read_cache_preload"); |
0569e9b8 JH |
253 | return -1; |
254 | } | |
e7c3a59c | 255 | return run_diff_files(revs, options); |
0569e9b8 JH |
256 | } |
257 | ||
8bfcb3a6 CT |
258 | struct symdiff { |
259 | struct bitmap *skip; | |
260 | int warn; | |
261 | const char *base, *left, *right; | |
262 | }; | |
263 | ||
264 | /* | |
265 | * Check for symmetric-difference arguments, and if present, arrange | |
266 | * everything we need to know to handle them correctly. As a bonus, | |
267 | * weed out all bogus range-based revision specifications, e.g., | |
268 | * "git diff A..B C..D" or "git diff A..B C" get rejected. | |
269 | * | |
270 | * For an actual symmetric diff, *symdiff is set this way: | |
271 | * | |
272 | * - its skip is non-NULL and marks *all* rev->pending.objects[i] | |
273 | * indices that the caller should ignore (extra merge bases, of | |
274 | * which there might be many, and A in A...B). Note that the | |
275 | * chosen merge base and right side are NOT marked. | |
276 | * - warn is set if there are multiple merge bases. | |
277 | * - base, left, and right point to the names to use in a | |
278 | * warning about multiple merge bases. | |
279 | * | |
280 | * If there is no symmetric diff argument, sym->skip is NULL and | |
281 | * sym->warn is cleared. The remaining fields are not set. | |
282 | */ | |
283 | static void symdiff_prepare(struct rev_info *rev, struct symdiff *sym) | |
284 | { | |
285 | int i, is_symdiff = 0, basecount = 0, othercount = 0; | |
286 | int lpos = -1, rpos = -1, basepos = -1; | |
287 | struct bitmap *map = NULL; | |
288 | ||
289 | /* | |
290 | * Use the whence fields to find merge bases and left and | |
291 | * right parts of symmetric difference, so that we do not | |
292 | * depend on the order that revisions are parsed. If there | |
293 | * are any revs that aren't from these sources, we have a | |
294 | * "git diff C A...B" or "git diff A...B C" case. Or we | |
295 | * could even get "git diff A...B C...E", for instance. | |
296 | * | |
297 | * If we don't have just one merge base, we pick one | |
298 | * at random. | |
299 | * | |
300 | * NB: REV_CMD_LEFT, REV_CMD_RIGHT are also used for A..B, | |
301 | * so we must check for SYMMETRIC_LEFT too. The two arrays | |
302 | * rev->pending.objects and rev->cmdline.rev are parallel. | |
303 | */ | |
304 | for (i = 0; i < rev->cmdline.nr; i++) { | |
305 | struct object *obj = rev->pending.objects[i].item; | |
306 | switch (rev->cmdline.rev[i].whence) { | |
307 | case REV_CMD_MERGE_BASE: | |
308 | if (basepos < 0) | |
309 | basepos = i; | |
310 | basecount++; | |
311 | break; /* do mark all bases */ | |
312 | case REV_CMD_LEFT: | |
313 | if (lpos >= 0) | |
314 | usage(builtin_diff_usage); | |
315 | lpos = i; | |
316 | if (obj->flags & SYMMETRIC_LEFT) { | |
317 | is_symdiff = 1; | |
318 | break; /* do mark A */ | |
319 | } | |
320 | continue; | |
321 | case REV_CMD_RIGHT: | |
322 | if (rpos >= 0) | |
323 | usage(builtin_diff_usage); | |
324 | rpos = i; | |
325 | continue; /* don't mark B */ | |
326 | case REV_CMD_PARENTS_ONLY: | |
327 | case REV_CMD_REF: | |
328 | case REV_CMD_REV: | |
329 | othercount++; | |
330 | continue; | |
331 | } | |
332 | if (map == NULL) | |
333 | map = bitmap_new(); | |
334 | bitmap_set(map, i); | |
335 | } | |
336 | ||
337 | /* | |
338 | * Forbid any additional revs for both A...B and A..B. | |
339 | */ | |
340 | if (lpos >= 0 && othercount > 0) | |
341 | usage(builtin_diff_usage); | |
342 | ||
343 | if (!is_symdiff) { | |
344 | bitmap_free(map); | |
345 | sym->warn = 0; | |
346 | sym->skip = NULL; | |
347 | return; | |
348 | } | |
349 | ||
350 | sym->left = rev->pending.objects[lpos].name; | |
351 | sym->right = rev->pending.objects[rpos].name; | |
352 | sym->base = rev->pending.objects[basepos].name; | |
353 | if (basecount == 0) | |
354 | die(_("%s...%s: no merge base"), sym->left, sym->right); | |
355 | bitmap_unset(map, basepos); /* unmark the base we want */ | |
356 | sym->warn = basecount > 1; | |
357 | sym->skip = map; | |
358 | } | |
359 | ||
a633fca0 | 360 | int cmd_diff(int argc, const char **argv, const char *prefix) |
65056021 | 361 | { |
1f1e895f | 362 | int i; |
65056021 | 363 | struct rev_info rev; |
33055fa8 MH |
364 | struct object_array ent = OBJECT_ARRAY_INIT; |
365 | int blobs = 0, paths = 0; | |
42f5ba5b | 366 | struct object_array_entry *blob[2]; |
470faf96 | 367 | int nongit = 0, no_index = 0; |
41bbf9d5 | 368 | int result = 0; |
8bfcb3a6 | 369 | struct symdiff sdiff; |
65056021 JH |
370 | |
371 | /* | |
372 | * We could get N tree-ish in the rev.pending_objects list. | |
373 | * Also there could be M blobs there, and P pathspecs. | |
374 | * | |
375 | * N=0, M=0: | |
376 | * cache vs files (diff-files) | |
377 | * N=0, M=2: | |
378 | * compare two random blobs. P must be zero. | |
379 | * N=0, M=1, P=1: | |
380 | * compare a blob with a working tree file. | |
381 | * | |
382 | * N=1, M=0: | |
383 | * tree vs cache (diff-index --cached) | |
384 | * | |
385 | * N=2, M=0: | |
386 | * tree vs tree (diff-tree) | |
387 | * | |
0569e9b8 JH |
388 | * N=0, M=0, P=2: |
389 | * compare two filesystem entities (aka --no-index). | |
390 | * | |
65056021 JH |
391 | * Other cases are errors. |
392 | */ | |
230f544e | 393 | |
470faf96 TG |
394 | /* Were we asked to do --no-index explicitly? */ |
395 | for (i = 1; i < argc; i++) { | |
396 | if (!strcmp(argv[i], "--")) { | |
397 | i++; | |
398 | break; | |
399 | } | |
400 | if (!strcmp(argv[i], "--no-index")) | |
401 | no_index = DIFF_NO_INDEX_EXPLICIT; | |
402 | if (argv[i][0] != '-') | |
403 | break; | |
404 | } | |
405 | ||
28a4e580 | 406 | prefix = setup_git_directory_gently(&nongit); |
6df5762d | 407 | |
28a4e580 | 408 | if (!no_index) { |
475b362c JK |
409 | /* |
410 | * Treat git diff with at least one path outside of the | |
411 | * repo the same as if the command would have been executed | |
412 | * outside of a git repository. In this case it behaves | |
413 | * the same way as "git diff --no-index <a> <b>", which acts | |
414 | * as a colourful "diff" replacement. | |
415 | */ | |
416 | if (nongit || ((argc == i + 2) && | |
417 | (!path_inside_repo(prefix, argv[i]) || | |
418 | !path_inside_repo(prefix, argv[i + 1])))) | |
419 | no_index = DIFF_NO_INDEX_IMPLICIT; | |
420 | } | |
470faf96 | 421 | |
5404c116 | 422 | init_diff_ui_defaults(); |
ef90d6d4 | 423 | git_config(git_diff_ui_config, NULL); |
90a78b83 | 424 | precompose_argv(argc, argv); |
6b2f2d98 | 425 | |
2abf3503 | 426 | repo_init_revisions(the_repository, &rev, prefix); |
0569e9b8 | 427 | |
287ab28b | 428 | /* Set up defaults that will apply to both no-index and regular diffs. */ |
af9fedc1 | 429 | rev.diffopt.stat_width = -1; |
df44483a | 430 | rev.diffopt.stat_graph_width = -1; |
0d1e0e78 BW |
431 | rev.diffopt.flags.allow_external = 1; |
432 | rev.diffopt.flags.allow_textconv = 1; | |
61af494c | 433 | |
287ab28b JK |
434 | /* If this is a no-index diff, just run it and exit there. */ |
435 | if (no_index) | |
dcd6a8c0 JH |
436 | exit(diff_no_index(&rev, no_index == DIFF_NO_INDEX_IMPLICIT, |
437 | argc, argv)); | |
438 | ||
287ab28b JK |
439 | |
440 | /* | |
441 | * Otherwise, we are doing the usual "git" diff; set up any | |
442 | * further defaults that apply to regular diffs. | |
443 | */ | |
444 | rev.diffopt.skip_stat_unmatch = !!diff_auto_refresh_index; | |
445 | ||
0231ae71 NTND |
446 | /* |
447 | * Default to intent-to-add entries invisible in the | |
448 | * index. This makes them show up as new files in diff-files | |
449 | * and not at all in diff-cached. | |
450 | */ | |
451 | rev.diffopt.ita_invisible_in_index = 1; | |
452 | ||
0569e9b8 | 453 | if (nongit) |
54214529 | 454 | die(_("Not a git repository")); |
0569e9b8 | 455 | argc = setup_revisions(argc, argv, &rev, NULL); |
047fbe90 | 456 | if (!rev.diffopt.output_format) { |
c9b5ef99 | 457 | rev.diffopt.output_format = DIFF_FORMAT_PATCH; |
28452655 | 458 | diff_setup_done(&rev.diffopt); |
047fbe90 | 459 | } |
61af494c | 460 | |
0d1e0e78 | 461 | rev.diffopt.flags.recursive = 1; |
c9b5ef99 | 462 | |
1af3d977 | 463 | setup_diff_pager(&rev.diffopt); |
89d07f75 | 464 | |
0569e9b8 JH |
465 | /* |
466 | * Do we have --cached and not have a pending object, then | |
65056021 JH |
467 | * default to HEAD by hand. Eek. |
468 | */ | |
1f1e895f | 469 | if (!rev.pending.nr) { |
65056021 JH |
470 | int i; |
471 | for (i = 1; i < argc; i++) { | |
472 | const char *arg = argv[i]; | |
473 | if (!strcmp(arg, "--")) | |
474 | break; | |
2baf1850 DS |
475 | else if (!strcmp(arg, "--cached") || |
476 | !strcmp(arg, "--staged")) { | |
3384a2df | 477 | add_head_to_pending(&rev); |
a2b7a3b3 NTND |
478 | if (!rev.pending.nr) { |
479 | struct tree *tree; | |
f86bcc7b SB |
480 | tree = lookup_tree(the_repository, |
481 | the_repository->hash_algo->empty_tree); | |
a2b7a3b3 NTND |
482 | add_pending_object(&rev, &tree->object, "HEAD"); |
483 | } | |
65056021 JH |
484 | break; |
485 | } | |
486 | } | |
487 | } | |
488 | ||
8bfcb3a6 | 489 | symdiff_prepare(&rev, &sdiff); |
1f1e895f | 490 | for (i = 0; i < rev.pending.nr; i++) { |
026f09e7 MH |
491 | struct object_array_entry *entry = &rev.pending.objects[i]; |
492 | struct object *obj = entry->item; | |
493 | const char *name = entry->name; | |
65056021 JH |
494 | int flags = (obj->flags & UNINTERESTING); |
495 | if (!obj->parsed) | |
109cd76d | 496 | obj = parse_object(the_repository, &obj->oid); |
a74093da | 497 | obj = deref_tag(the_repository, obj, NULL, 0); |
65056021 | 498 | if (!obj) |
54214529 | 499 | die(_("invalid object '%s' given."), name); |
1974632c | 500 | if (obj->type == OBJ_COMMIT) |
2e27bd77 | 501 | obj = &get_commit_tree(((struct commit *)obj))->object; |
5b1e14ea | 502 | |
1974632c | 503 | if (obj->type == OBJ_TREE) { |
8bfcb3a6 CT |
504 | if (sdiff.skip && bitmap_get(sdiff.skip, i)) |
505 | continue; | |
65056021 | 506 | obj->flags |= flags; |
33055fa8 | 507 | add_object_array(obj, name, &ent); |
5b1e14ea | 508 | } else if (obj->type == OBJ_BLOB) { |
65056021 | 509 | if (2 <= blobs) |
54214529 | 510 | die(_("more than two blobs given: '%s'"), name); |
42f5ba5b | 511 | blob[blobs] = entry; |
65056021 | 512 | blobs++; |
230f544e | 513 | |
5b1e14ea MH |
514 | } else { |
515 | die(_("unhandled object '%s' given."), name); | |
65056021 | 516 | } |
65056021 | 517 | } |
887c6c18 | 518 | if (rev.prune_data.nr) |
afe069d1 | 519 | paths += rev.prune_data.nr; |
65056021 JH |
520 | |
521 | /* | |
522 | * Now, do the arguments look reasonable? | |
523 | */ | |
33055fa8 | 524 | if (!ent.nr) { |
65056021 JH |
525 | switch (blobs) { |
526 | case 0: | |
0569e9b8 | 527 | result = builtin_diff_files(&rev, argc, argv); |
65056021 JH |
528 | break; |
529 | case 1: | |
530 | if (paths != 1) | |
531 | usage(builtin_diff_usage); | |
887c6c18 | 532 | result = builtin_diff_b_f(&rev, argc, argv, blob); |
65056021 JH |
533 | break; |
534 | case 2: | |
0fe7c1de JH |
535 | if (paths) |
536 | usage(builtin_diff_usage); | |
41bbf9d5 | 537 | result = builtin_diff_blobs(&rev, argc, argv, blob); |
65056021 JH |
538 | break; |
539 | default: | |
540 | usage(builtin_diff_usage); | |
541 | } | |
542 | } | |
543 | else if (blobs) | |
544 | usage(builtin_diff_usage); | |
33055fa8 | 545 | else if (ent.nr == 1) |
41bbf9d5 | 546 | result = builtin_diff_index(&rev, argc, argv); |
8bfcb3a6 CT |
547 | else if (ent.nr == 2) { |
548 | if (sdiff.warn) | |
549 | warning(_("%s...%s: multiple merge bases, using %s"), | |
550 | sdiff.left, sdiff.right, sdiff.base); | |
33055fa8 MH |
551 | result = builtin_diff_tree(&rev, argc, argv, |
552 | &ent.objects[0], &ent.objects[1]); | |
c008c0ff | 553 | } else |
41bbf9d5 | 554 | result = builtin_diff_combined(&rev, argc, argv, |
33055fa8 | 555 | ent.objects, ent.nr); |
da31b358 | 556 | result = diff_result_code(&rev.diffopt, result); |
aecbf914 JH |
557 | if (1 < rev.diffopt.skip_stat_unmatch) |
558 | refresh_index_quietly(); | |
886e1084 MÅ |
559 | UNLEAK(rev); |
560 | UNLEAK(ent); | |
561 | UNLEAK(blob); | |
41bbf9d5 | 562 | return result; |
65056021 | 563 | } |