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Commit | Line | Data |
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af3feefa JH |
1 | #include "cache.h" |
2 | #include "commit.h" | |
8e440259 | 3 | #include "blob.h" |
af3feefa JH |
4 | #include "diff.h" |
5 | #include "diffcore.h" | |
6 | #include "quote.h" | |
d9ea73e0 | 7 | #include "xdiff-interface.h" |
91539833 | 8 | #include "log-tree.h" |
7dae8b21 | 9 | #include "refs.h" |
af3feefa | 10 | |
ea726d02 | 11 | static struct combine_diff_path *intersect_paths(struct combine_diff_path *curr, int n, int num_parent) |
af3feefa JH |
12 | { |
13 | struct diff_queue_struct *q = &diff_queued_diff; | |
ea726d02 | 14 | struct combine_diff_path *p; |
af3feefa JH |
15 | int i; |
16 | ||
17 | if (!n) { | |
ea726d02 | 18 | struct combine_diff_path *list = NULL, **tail = &list; |
af3feefa JH |
19 | for (i = 0; i < q->nr; i++) { |
20 | int len; | |
21 | const char *path; | |
a976b0a5 | 22 | if (diff_unmodified_pair(q->queue[i])) |
af3feefa JH |
23 | continue; |
24 | path = q->queue[i]->two->path; | |
25 | len = strlen(path); | |
2454c962 | 26 | p = xmalloc(combine_diff_path_size(num_parent, len)); |
4b25d091 | 27 | p->path = (char *) &(p->parent[num_parent]); |
af3feefa JH |
28 | memcpy(p->path, path, len); |
29 | p->path[len] = 0; | |
30 | p->len = len; | |
31 | p->next = NULL; | |
2454c962 JH |
32 | memset(p->parent, 0, |
33 | sizeof(p->parent[0]) * num_parent); | |
34 | ||
e702496e | 35 | hashcpy(p->sha1, q->queue[i]->two->sha1); |
2454c962 | 36 | p->mode = q->queue[i]->two->mode; |
e702496e | 37 | hashcpy(p->parent[n].sha1, q->queue[i]->one->sha1); |
2454c962 | 38 | p->parent[n].mode = q->queue[i]->one->mode; |
d416df88 | 39 | p->parent[n].status = q->queue[i]->status; |
5290a0f8 JH |
40 | *tail = p; |
41 | tail = &p->next; | |
af3feefa JH |
42 | } |
43 | return list; | |
44 | } | |
45 | ||
46 | for (p = curr; p; p = p->next) { | |
47 | int found = 0; | |
48 | if (!p->len) | |
49 | continue; | |
50 | for (i = 0; i < q->nr; i++) { | |
51 | const char *path; | |
52 | int len; | |
53 | ||
a976b0a5 | 54 | if (diff_unmodified_pair(q->queue[i])) |
af3feefa JH |
55 | continue; |
56 | path = q->queue[i]->two->path; | |
57 | len = strlen(path); | |
58 | if (len == p->len && !memcmp(path, p->path, len)) { | |
59 | found = 1; | |
e702496e | 60 | hashcpy(p->parent[n].sha1, q->queue[i]->one->sha1); |
2454c962 | 61 | p->parent[n].mode = q->queue[i]->one->mode; |
d416df88 | 62 | p->parent[n].status = q->queue[i]->status; |
af3feefa JH |
63 | break; |
64 | } | |
65 | } | |
66 | if (!found) | |
67 | p->len = 0; | |
68 | } | |
69 | return curr; | |
70 | } | |
71 | ||
b469d8b6 | 72 | /* Lines lost from parent */ |
af3feefa JH |
73 | struct lline { |
74 | struct lline *next; | |
75 | int len; | |
76 | unsigned long parent_map; | |
77 | char line[FLEX_ARRAY]; | |
78 | }; | |
79 | ||
b469d8b6 | 80 | /* Lines surviving in the merge result */ |
af3feefa JH |
81 | struct sline { |
82 | struct lline *lost_head, **lost_tail; | |
55d5d5ba | 83 | struct lline *next_lost; |
af3feefa JH |
84 | char *bol; |
85 | int len; | |
46dc9412 JH |
86 | /* bit 0 up to (N-1) are on if the parent has this line (i.e. |
87 | * we did not change it). | |
b469d8b6 | 88 | * bit N is used for "interesting" lines, including context. |
c86fbe53 | 89 | * bit (N+1) is used for "do not show deletion before this". |
b469d8b6 | 90 | */ |
af3feefa | 91 | unsigned long flag; |
f16706cc | 92 | unsigned long *p_lno; |
af3feefa JH |
93 | }; |
94 | ||
7dae8b21 | 95 | static char *grab_blob(const unsigned char *sha1, unsigned int mode, unsigned long *size) |
af3feefa JH |
96 | { |
97 | char *blob; | |
21666f1a | 98 | enum object_type type; |
7dae8b21 JH |
99 | |
100 | if (S_ISGITLINK(mode)) { | |
101 | blob = xmalloc(100); | |
102 | *size = snprintf(blob, 100, | |
103 | "Subproject commit %s\n", sha1_to_hex(sha1)); | |
104 | } else if (is_null_sha1(sha1)) { | |
af3feefa JH |
105 | /* deleted blob */ |
106 | *size = 0; | |
107 | return xcalloc(1, 1); | |
7dae8b21 JH |
108 | } else { |
109 | blob = read_sha1_file(sha1, &type, size); | |
110 | if (type != OBJ_BLOB) | |
111 | die("object '%s' is not a blob!", sha1_to_hex(sha1)); | |
af3feefa | 112 | } |
af3feefa JH |
113 | return blob; |
114 | } | |
115 | ||
f23fc773 | 116 | static void append_lost(struct sline *sline, int n, const char *line, int len) |
af3feefa JH |
117 | { |
118 | struct lline *lline; | |
af3feefa JH |
119 | unsigned long this_mask = (1UL<<n); |
120 | if (line[len-1] == '\n') | |
121 | len--; | |
122 | ||
123 | /* Check to see if we can squash things */ | |
124 | if (sline->lost_head) { | |
55d5d5ba | 125 | lline = sline->next_lost; |
af3feefa JH |
126 | while (lline) { |
127 | if (lline->len == len && | |
128 | !memcmp(lline->line, line, len)) { | |
129 | lline->parent_map |= this_mask; | |
55d5d5ba | 130 | sline->next_lost = lline->next; |
af3feefa JH |
131 | return; |
132 | } | |
133 | lline = lline->next; | |
134 | } | |
135 | } | |
136 | ||
137 | lline = xmalloc(sizeof(*lline) + len + 1); | |
138 | lline->len = len; | |
139 | lline->next = NULL; | |
140 | lline->parent_map = this_mask; | |
141 | memcpy(lline->line, line, len); | |
142 | lline->line[len] = 0; | |
5290a0f8 | 143 | *sline->lost_tail = lline; |
af3feefa | 144 | sline->lost_tail = &lline->next; |
55d5d5ba | 145 | sline->next_lost = NULL; |
af3feefa JH |
146 | } |
147 | ||
f23fc773 | 148 | struct combine_diff_state { |
a0fd3146 JH |
149 | unsigned int lno; |
150 | int ob, on, nb, nn; | |
f23fc773 JH |
151 | unsigned long nmask; |
152 | int num_parent; | |
153 | int n; | |
154 | struct sline *sline; | |
155 | struct sline *lost_bucket; | |
156 | }; | |
157 | ||
d9ea73e0 | 158 | static void consume_line(void *state_, char *line, unsigned long len) |
f23fc773 | 159 | { |
d9ea73e0 | 160 | struct combine_diff_state *state = state_; |
f23fc773 JH |
161 | if (5 < len && !memcmp("@@ -", line, 4)) { |
162 | if (parse_hunk_header(line, len, | |
163 | &state->ob, &state->on, | |
164 | &state->nb, &state->nn)) | |
165 | return; | |
166 | state->lno = state->nb; | |
b810cbbd | 167 | if (state->nn == 0) { |
f23fc773 JH |
168 | /* @@ -X,Y +N,0 @@ removed Y lines |
169 | * that would have come *after* line N | |
170 | * in the result. Our lost buckets hang | |
171 | * to the line after the removed lines, | |
b810cbbd JH |
172 | * |
173 | * Note that this is correct even when N == 0, | |
174 | * in which case the hunk removes the first | |
175 | * line in the file. | |
f23fc773 JH |
176 | */ |
177 | state->lost_bucket = &state->sline[state->nb]; | |
b810cbbd JH |
178 | if (!state->nb) |
179 | state->nb = 1; | |
180 | } else { | |
f23fc773 | 181 | state->lost_bucket = &state->sline[state->nb-1]; |
b810cbbd | 182 | } |
f23fc773 JH |
183 | if (!state->sline[state->nb-1].p_lno) |
184 | state->sline[state->nb-1].p_lno = | |
185 | xcalloc(state->num_parent, | |
186 | sizeof(unsigned long)); | |
187 | state->sline[state->nb-1].p_lno[state->n] = state->ob; | |
55d5d5ba | 188 | state->lost_bucket->next_lost = state->lost_bucket->lost_head; |
f23fc773 JH |
189 | return; |
190 | } | |
191 | if (!state->lost_bucket) | |
192 | return; /* not in any hunk yet */ | |
193 | switch (line[0]) { | |
194 | case '-': | |
195 | append_lost(state->lost_bucket, state->n, line+1, len-1); | |
196 | break; | |
197 | case '+': | |
198 | state->sline[state->lno-1].flag |= state->nmask; | |
199 | state->lno++; | |
200 | break; | |
201 | } | |
202 | } | |
203 | ||
7dae8b21 JH |
204 | static void combine_diff(const unsigned char *parent, unsigned int mode, |
205 | mmfile_t *result_file, | |
2386c297 | 206 | struct sline *sline, unsigned int cnt, int n, |
21798708 | 207 | int num_parent, int result_deleted) |
af3feefa | 208 | { |
f23fc773 | 209 | unsigned int p_lno, lno; |
f16706cc | 210 | unsigned long nmask = (1UL << n); |
f23fc773 JH |
211 | xpparam_t xpp; |
212 | xdemitconf_t xecfg; | |
213 | mmfile_t parent_file; | |
f23fc773 JH |
214 | struct combine_diff_state state; |
215 | unsigned long sz; | |
af3feefa | 216 | |
21798708 | 217 | if (result_deleted) |
4462731e JH |
218 | return; /* result deleted */ |
219 | ||
7dae8b21 | 220 | parent_file.ptr = grab_blob(parent, mode, &sz); |
f23fc773 | 221 | parent_file.size = sz; |
9ccd0a88 | 222 | memset(&xpp, 0, sizeof(xpp)); |
582aa00b | 223 | xpp.flags = 0; |
30b25010 | 224 | memset(&xecfg, 0, sizeof(xecfg)); |
f23fc773 JH |
225 | memset(&state, 0, sizeof(state)); |
226 | state.nmask = nmask; | |
227 | state.sline = sline; | |
228 | state.lno = 1; | |
229 | state.num_parent = num_parent; | |
230 | state.n = n; | |
231 | ||
8a3f524b | 232 | xdi_diff_outf(&parent_file, result_file, consume_line, &state, |
dfea7900 | 233 | &xpp, &xecfg); |
f23fc773 | 234 | free(parent_file.ptr); |
f16706cc JH |
235 | |
236 | /* Assign line numbers for this parent. | |
237 | * | |
238 | * sline[lno].p_lno[n] records the first line number | |
239 | * (counting from 1) for parent N if the final hunk display | |
240 | * started by showing sline[lno] (possibly showing the lost | |
241 | * lines attached to it first). | |
242 | */ | |
8a470ebf | 243 | for (lno = 0, p_lno = 1; lno <= cnt; lno++) { |
f16706cc JH |
244 | struct lline *ll; |
245 | sline[lno].p_lno[n] = p_lno; | |
246 | ||
247 | /* How many lines would this sline advance the p_lno? */ | |
248 | ll = sline[lno].lost_head; | |
249 | while (ll) { | |
250 | if (ll->parent_map & nmask) | |
251 | p_lno++; /* '-' means parent had it */ | |
252 | ll = ll->next; | |
253 | } | |
8a470ebf | 254 | if (lno < cnt && !(sline[lno].flag & nmask)) |
f16706cc JH |
255 | p_lno++; /* no '+' means parent had it */ |
256 | } | |
257 | sline[lno].p_lno[n] = p_lno; /* trailer */ | |
af3feefa JH |
258 | } |
259 | ||
260 | static unsigned long context = 3; | |
261 | static char combine_marker = '@'; | |
262 | ||
263 | static int interesting(struct sline *sline, unsigned long all_mask) | |
264 | { | |
46dc9412 JH |
265 | /* If some parents lost lines here, or if we have added to |
266 | * some parent, it is interesting. | |
267 | */ | |
268 | return ((sline->flag & all_mask) || sline->lost_head); | |
af3feefa JH |
269 | } |
270 | ||
3ec1909f JH |
271 | static unsigned long adjust_hunk_tail(struct sline *sline, |
272 | unsigned long all_mask, | |
273 | unsigned long hunk_begin, | |
274 | unsigned long i) | |
275 | { | |
46dc9412 JH |
276 | /* i points at the first uninteresting line. If the last line |
277 | * of the hunk was interesting only because it has some | |
278 | * deletion, then it is not all that interesting for the | |
279 | * purpose of giving trailing context lines. This is because | |
280 | * we output '-' line and then unmodified sline[i-1] itself in | |
281 | * that case which gives us one extra context line. | |
3ec1909f | 282 | */ |
46dc9412 | 283 | if ((hunk_begin + 1 <= i) && !(sline[i-1].flag & all_mask)) |
3ec1909f JH |
284 | i--; |
285 | return i; | |
286 | } | |
287 | ||
46dc9412 JH |
288 | static unsigned long find_next(struct sline *sline, |
289 | unsigned long mark, | |
290 | unsigned long i, | |
291 | unsigned long cnt, | |
2386c297 | 292 | int look_for_uninteresting) |
3ec1909f | 293 | { |
46dc9412 JH |
294 | /* We have examined up to i-1 and are about to look at i. |
295 | * Find next interesting or uninteresting line. Here, | |
296 | * "interesting" does not mean interesting(), but marked by | |
297 | * the give_context() function below (i.e. it includes context | |
298 | * lines that are not interesting to interesting() function | |
299 | * that are surrounded by interesting() ones. | |
300 | */ | |
74065951 | 301 | while (i <= cnt) |
2386c297 | 302 | if (look_for_uninteresting |
46dc9412 JH |
303 | ? !(sline[i].flag & mark) |
304 | : (sline[i].flag & mark)) | |
3ec1909f JH |
305 | return i; |
306 | else | |
307 | i++; | |
74065951 | 308 | return i; |
3ec1909f JH |
309 | } |
310 | ||
311 | static int give_context(struct sline *sline, unsigned long cnt, int num_parent) | |
af3feefa JH |
312 | { |
313 | unsigned long all_mask = (1UL<<num_parent) - 1; | |
314 | unsigned long mark = (1UL<<num_parent); | |
c86fbe53 | 315 | unsigned long no_pre_delete = (2UL<<num_parent); |
af3feefa JH |
316 | unsigned long i; |
317 | ||
46dc9412 | 318 | /* Two groups of interesting lines may have a short gap of |
82e5a82f | 319 | * uninteresting lines. Connect such groups to give them a |
46dc9412 JH |
320 | * bit of context. |
321 | * | |
322 | * We first start from what the interesting() function says, | |
323 | * and mark them with "mark", and paint context lines with the | |
324 | * mark. So interesting() would still say false for such context | |
325 | * lines but they are treated as "interesting" in the end. | |
326 | */ | |
327 | i = find_next(sline, mark, 0, cnt, 0); | |
74065951 | 328 | if (cnt < i) |
3ec1909f JH |
329 | return 0; |
330 | ||
74065951 | 331 | while (i <= cnt) { |
3ec1909f JH |
332 | unsigned long j = (context < i) ? (i - context) : 0; |
333 | unsigned long k; | |
46dc9412 JH |
334 | |
335 | /* Paint a few lines before the first interesting line. */ | |
3ec1909f | 336 | while (j < i) |
c86fbe53 | 337 | sline[j++].flag |= mark | no_pre_delete; |
3ec1909f JH |
338 | |
339 | again: | |
46dc9412 JH |
340 | /* we know up to i is to be included. where does the |
341 | * next uninteresting one start? | |
342 | */ | |
343 | j = find_next(sline, mark, i, cnt, 1); | |
74065951 | 344 | if (cnt < j) |
3ec1909f JH |
345 | break; /* the rest are all interesting */ |
346 | ||
347 | /* lookahead context lines */ | |
46dc9412 | 348 | k = find_next(sline, mark, j, cnt, 0); |
3ec1909f JH |
349 | j = adjust_hunk_tail(sline, all_mask, i, j); |
350 | ||
351 | if (k < j + context) { | |
352 | /* k is interesting and [j,k) are not, but | |
353 | * paint them interesting because the gap is small. | |
354 | */ | |
355 | while (j < k) | |
af3feefa | 356 | sline[j++].flag |= mark; |
3ec1909f JH |
357 | i = k; |
358 | goto again; | |
af3feefa | 359 | } |
3ec1909f JH |
360 | |
361 | /* j is the first uninteresting line and there is | |
46dc9412 JH |
362 | * no overlap beyond it within context lines. Paint |
363 | * the trailing edge a bit. | |
3ec1909f JH |
364 | */ |
365 | i = k; | |
74065951 | 366 | k = (j + context < cnt+1) ? j + context : cnt+1; |
3ec1909f JH |
367 | while (j < k) |
368 | sline[j++].flag |= mark; | |
369 | } | |
370 | return 1; | |
371 | } | |
372 | ||
373 | static int make_hunks(struct sline *sline, unsigned long cnt, | |
374 | int num_parent, int dense) | |
375 | { | |
376 | unsigned long all_mask = (1UL<<num_parent) - 1; | |
377 | unsigned long mark = (1UL<<num_parent); | |
378 | unsigned long i; | |
379 | int has_interesting = 0; | |
380 | ||
74065951 | 381 | for (i = 0; i <= cnt; i++) { |
3ec1909f JH |
382 | if (interesting(&sline[i], all_mask)) |
383 | sline[i].flag |= mark; | |
384 | else | |
385 | sline[i].flag &= ~mark; | |
af3feefa | 386 | } |
d8f4790e | 387 | if (!dense) |
3ec1909f | 388 | return give_context(sline, cnt, num_parent); |
d8f4790e | 389 | |
263eee29 JH |
390 | /* Look at each hunk, and if we have changes from only one |
391 | * parent, or the changes are the same from all but one | |
392 | * parent, mark that uninteresting. | |
d8f4790e JH |
393 | */ |
394 | i = 0; | |
74065951 | 395 | while (i <= cnt) { |
3ec1909f | 396 | unsigned long j, hunk_begin, hunk_end; |
bf1c32bd | 397 | unsigned long same_diff; |
74065951 | 398 | while (i <= cnt && !(sline[i].flag & mark)) |
d8f4790e | 399 | i++; |
74065951 | 400 | if (cnt < i) |
d8f4790e | 401 | break; /* No more interesting hunks */ |
3ec1909f | 402 | hunk_begin = i; |
74065951 | 403 | for (j = i + 1; j <= cnt; j++) { |
3ec1909f JH |
404 | if (!(sline[j].flag & mark)) { |
405 | /* Look beyond the end to see if there | |
406 | * is an interesting line after this | |
407 | * hunk within context span. | |
408 | */ | |
409 | unsigned long la; /* lookahead */ | |
410 | int contin = 0; | |
411 | la = adjust_hunk_tail(sline, all_mask, | |
412 | hunk_begin, j); | |
74065951 JH |
413 | la = (la + context < cnt + 1) ? |
414 | (la + context) : cnt + 1; | |
3ec1909f JH |
415 | while (j <= --la) { |
416 | if (sline[la].flag & mark) { | |
417 | contin = 1; | |
418 | break; | |
419 | } | |
420 | } | |
421 | if (!contin) | |
422 | break; | |
423 | j = la; | |
424 | } | |
425 | } | |
426 | hunk_end = j; | |
427 | ||
bf1c32bd | 428 | /* [i..hunk_end) are interesting. Now is it really |
fd4b1d21 JH |
429 | * interesting? We check if there are only two versions |
430 | * and the result matches one of them. That is, we look | |
431 | * at: | |
432 | * (+) line, which records lines added to which parents; | |
433 | * this line appears in the result. | |
434 | * (-) line, which records from what parents the line | |
435 | * was removed; this line does not appear in the result. | |
436 | * then check the set of parents the result has difference | |
437 | * from, from all lines. If there are lines that has | |
438 | * different set of parents that the result has differences | |
439 | * from, that means we have more than two versions. | |
440 | * | |
441 | * Even when we have only two versions, if the result does | |
442 | * not match any of the parents, the it should be considered | |
443 | * interesting. In such a case, we would have all '+' line. | |
444 | * After passing the above "two versions" test, that would | |
445 | * appear as "the same set of parents" to be "all parents". | |
d8f4790e | 446 | */ |
bf1c32bd JH |
447 | same_diff = 0; |
448 | has_interesting = 0; | |
449 | for (j = i; j < hunk_end && !has_interesting; j++) { | |
46dc9412 | 450 | unsigned long this_diff = sline[j].flag & all_mask; |
bf1c32bd JH |
451 | struct lline *ll = sline[j].lost_head; |
452 | if (this_diff) { | |
453 | /* This has some changes. Is it the | |
454 | * same as others? | |
455 | */ | |
456 | if (!same_diff) | |
457 | same_diff = this_diff; | |
458 | else if (same_diff != this_diff) { | |
459 | has_interesting = 1; | |
460 | break; | |
461 | } | |
462 | } | |
463 | while (ll && !has_interesting) { | |
464 | /* Lost this line from these parents; | |
465 | * who are they? Are they the same? | |
466 | */ | |
467 | this_diff = ll->parent_map; | |
468 | if (!same_diff) | |
469 | same_diff = this_diff; | |
470 | else if (same_diff != this_diff) { | |
471 | has_interesting = 1; | |
472 | } | |
473 | ll = ll->next; | |
474 | } | |
d8f4790e | 475 | } |
bf1c32bd | 476 | |
fd4b1d21 | 477 | if (!has_interesting && same_diff != all_mask) { |
d8f4790e | 478 | /* This hunk is not that interesting after all */ |
3ec1909f | 479 | for (j = hunk_begin; j < hunk_end; j++) |
d8f4790e JH |
480 | sline[j].flag &= ~mark; |
481 | } | |
482 | i = hunk_end; | |
483 | } | |
3ec1909f JH |
484 | |
485 | has_interesting = give_context(sline, cnt, num_parent); | |
8828cdcb | 486 | return has_interesting; |
af3feefa JH |
487 | } |
488 | ||
3b0f5e88 | 489 | static void show_parent_lno(struct sline *sline, unsigned long l0, unsigned long l1, int n, unsigned long null_context) |
f16706cc JH |
490 | { |
491 | l0 = sline[l0].p_lno[n]; | |
492 | l1 = sline[l1].p_lno[n]; | |
3b0f5e88 | 493 | printf(" -%lu,%lu", l0, l1-l0-null_context); |
f16706cc JH |
494 | } |
495 | ||
d5f6a01a JH |
496 | static int hunk_comment_line(const char *bol) |
497 | { | |
7a8ac59f JH |
498 | int ch; |
499 | ||
500 | if (!bol) | |
501 | return 0; | |
502 | ch = *bol & 0xff; | |
d5f6a01a JH |
503 | return (isalpha(ch) || ch == '_' || ch == '$'); |
504 | } | |
505 | ||
39280970 JH |
506 | static void show_line_to_eol(const char *line, int len, const char *reset) |
507 | { | |
508 | int saw_cr_at_eol = 0; | |
509 | if (len < 0) | |
510 | len = strlen(line); | |
511 | saw_cr_at_eol = (len && line[len-1] == '\r'); | |
512 | ||
513 | printf("%.*s%s%s\n", len - saw_cr_at_eol, line, | |
514 | reset, | |
515 | saw_cr_at_eol ? "\r" : ""); | |
516 | } | |
517 | ||
567a03d1 | 518 | static void dump_sline(struct sline *sline, unsigned long cnt, int num_parent, |
21798708 | 519 | int use_color, int result_deleted) |
af3feefa JH |
520 | { |
521 | unsigned long mark = (1UL<<num_parent); | |
c86fbe53 | 522 | unsigned long no_pre_delete = (2UL<<num_parent); |
af3feefa | 523 | int i; |
f16706cc | 524 | unsigned long lno = 0; |
567a03d1 | 525 | const char *c_frag = diff_get_color(use_color, DIFF_FRAGINFO); |
89cb73a1 | 526 | const char *c_func = diff_get_color(use_color, DIFF_FUNCINFO); |
567a03d1 JH |
527 | const char *c_new = diff_get_color(use_color, DIFF_FILE_NEW); |
528 | const char *c_old = diff_get_color(use_color, DIFF_FILE_OLD); | |
529 | const char *c_plain = diff_get_color(use_color, DIFF_PLAIN); | |
530 | const char *c_reset = diff_get_color(use_color, DIFF_RESET); | |
af3feefa | 531 | |
21798708 | 532 | if (result_deleted) |
4462731e JH |
533 | return; /* result deleted */ |
534 | ||
af3feefa | 535 | while (1) { |
8bc7574b JH |
536 | unsigned long hunk_end; |
537 | unsigned long rlines; | |
d5f6a01a | 538 | const char *hunk_comment = NULL; |
3b0f5e88 | 539 | unsigned long null_context = 0; |
d5f6a01a JH |
540 | |
541 | while (lno <= cnt && !(sline[lno].flag & mark)) { | |
542 | if (hunk_comment_line(sline[lno].bol)) | |
543 | hunk_comment = sline[lno].bol; | |
af3feefa | 544 | lno++; |
d5f6a01a | 545 | } |
8a470ebf | 546 | if (cnt < lno) |
af3feefa | 547 | break; |
8a470ebf | 548 | else { |
74065951 | 549 | for (hunk_end = lno + 1; hunk_end <= cnt; hunk_end++) |
8a470ebf JH |
550 | if (!(sline[hunk_end].flag & mark)) |
551 | break; | |
552 | } | |
74065951 JH |
553 | rlines = hunk_end - lno; |
554 | if (cnt < hunk_end) | |
555 | rlines--; /* pointing at the last delete hunk */ | |
3b0f5e88 JH |
556 | |
557 | if (!context) { | |
558 | /* | |
559 | * Even when running with --unified=0, all | |
560 | * lines in the hunk needs to be processed in | |
561 | * the loop below in order to show the | |
562 | * deletion recorded in lost_head. However, | |
563 | * we do not want to show the resulting line | |
564 | * with all blank context markers in such a | |
565 | * case. Compensate. | |
566 | */ | |
567 | unsigned long j; | |
568 | for (j = lno; j < hunk_end; j++) | |
569 | if (!(sline[j].flag & (mark-1))) | |
570 | null_context++; | |
571 | rlines -= null_context; | |
572 | } | |
573 | ||
567a03d1 | 574 | fputs(c_frag, stdout); |
af3feefa | 575 | for (i = 0; i <= num_parent; i++) putchar(combine_marker); |
f16706cc | 576 | for (i = 0; i < num_parent; i++) |
3b0f5e88 | 577 | show_parent_lno(sline, lno, hunk_end, i, null_context); |
74065951 | 578 | printf(" +%lu,%lu ", lno+1, rlines); |
af3feefa | 579 | for (i = 0; i <= num_parent; i++) putchar(combine_marker); |
d5f6a01a JH |
580 | |
581 | if (hunk_comment) { | |
582 | int comment_end = 0; | |
583 | for (i = 0; i < 40; i++) { | |
584 | int ch = hunk_comment[i] & 0xff; | |
585 | if (!ch || ch == '\n') | |
586 | break; | |
587 | if (!isspace(ch)) | |
588 | comment_end = i; | |
589 | } | |
590 | if (comment_end) | |
89cb73a1 BW |
591 | printf("%s%s %s%s", c_reset, |
592 | c_plain, c_reset, | |
593 | c_func); | |
d5f6a01a JH |
594 | for (i = 0; i < comment_end; i++) |
595 | putchar(hunk_comment[i]); | |
596 | } | |
597 | ||
567a03d1 | 598 | printf("%s\n", c_reset); |
af3feefa JH |
599 | while (lno < hunk_end) { |
600 | struct lline *ll; | |
601 | int j; | |
46dc9412 | 602 | unsigned long p_mask; |
fd13b21f | 603 | struct sline *sl = &sline[lno++]; |
c86fbe53 | 604 | ll = (sl->flag & no_pre_delete) ? NULL : sl->lost_head; |
af3feefa | 605 | while (ll) { |
567a03d1 | 606 | fputs(c_old, stdout); |
af3feefa JH |
607 | for (j = 0; j < num_parent; j++) { |
608 | if (ll->parent_map & (1UL<<j)) | |
609 | putchar('-'); | |
610 | else | |
611 | putchar(' '); | |
612 | } | |
39280970 | 613 | show_line_to_eol(ll->line, -1, c_reset); |
af3feefa JH |
614 | ll = ll->next; |
615 | } | |
74065951 | 616 | if (cnt < lno) |
8a470ebf | 617 | break; |
46dc9412 | 618 | p_mask = 1; |
3b0f5e88 JH |
619 | if (!(sl->flag & (mark-1))) { |
620 | /* | |
621 | * This sline was here to hang the | |
622 | * lost lines in front of it. | |
623 | */ | |
624 | if (!context) | |
625 | continue; | |
567a03d1 | 626 | fputs(c_plain, stdout); |
3b0f5e88 | 627 | } |
567a03d1 JH |
628 | else |
629 | fputs(c_new, stdout); | |
af3feefa | 630 | for (j = 0; j < num_parent; j++) { |
46dc9412 | 631 | if (p_mask & sl->flag) |
af3feefa | 632 | putchar('+'); |
46dc9412 JH |
633 | else |
634 | putchar(' '); | |
635 | p_mask <<= 1; | |
af3feefa | 636 | } |
39280970 | 637 | show_line_to_eol(sl->bol, sl->len, c_reset); |
af3feefa JH |
638 | } |
639 | } | |
640 | } | |
641 | ||
3c39e9bd JH |
642 | static void reuse_combine_diff(struct sline *sline, unsigned long cnt, |
643 | int i, int j) | |
644 | { | |
645 | /* We have already examined parent j and we know parent i | |
646 | * and parent j are the same, so reuse the combined result | |
647 | * of parent j for parent i. | |
648 | */ | |
649 | unsigned long lno, imask, jmask; | |
650 | imask = (1UL<<i); | |
651 | jmask = (1UL<<j); | |
652 | ||
8a470ebf | 653 | for (lno = 0; lno <= cnt; lno++) { |
3c39e9bd | 654 | struct lline *ll = sline->lost_head; |
f16706cc | 655 | sline->p_lno[i] = sline->p_lno[j]; |
3c39e9bd JH |
656 | while (ll) { |
657 | if (ll->parent_map & jmask) | |
658 | ll->parent_map |= imask; | |
659 | ll = ll->next; | |
660 | } | |
46dc9412 JH |
661 | if (sline->flag & jmask) |
662 | sline->flag |= imask; | |
3c39e9bd JH |
663 | sline++; |
664 | } | |
4462731e JH |
665 | /* the overall size of the file (sline[cnt]) */ |
666 | sline->p_lno[i] = sline->p_lno[j]; | |
3c39e9bd JH |
667 | } |
668 | ||
462a15bc JH |
669 | static void dump_quoted_path(const char *head, |
670 | const char *prefix, | |
671 | const char *path, | |
567a03d1 | 672 | const char *c_meta, const char *c_reset) |
eab144ac | 673 | { |
462a15bc JH |
674 | static struct strbuf buf = STRBUF_INIT; |
675 | ||
676 | strbuf_reset(&buf); | |
677 | strbuf_addstr(&buf, c_meta); | |
678 | strbuf_addstr(&buf, head); | |
d5625091 | 679 | quote_two_c_style(&buf, prefix, path, 0); |
462a15bc JH |
680 | strbuf_addstr(&buf, c_reset); |
681 | puts(buf.buf); | |
eab144ac LT |
682 | } |
683 | ||
7c978a06 JK |
684 | static void show_combined_header(struct combine_diff_path *elem, |
685 | int num_parent, | |
686 | int dense, | |
687 | struct rev_info *rev, | |
688 | int mode_differs) | |
689 | { | |
690 | struct diff_options *opt = &rev->diffopt; | |
691 | int abbrev = DIFF_OPT_TST(opt, FULL_INDEX) ? 40 : DEFAULT_ABBREV; | |
692 | const char *a_prefix = opt->a_prefix ? opt->a_prefix : "a/"; | |
693 | const char *b_prefix = opt->b_prefix ? opt->b_prefix : "b/"; | |
694 | int use_color = DIFF_OPT_TST(opt, COLOR_DIFF); | |
695 | const char *c_meta = diff_get_color(use_color, DIFF_METAINFO); | |
696 | const char *c_reset = diff_get_color(use_color, DIFF_RESET); | |
697 | const char *abb; | |
698 | int added = 0; | |
699 | int deleted = 0; | |
700 | int i; | |
701 | ||
702 | if (rev->loginfo && !rev->no_commit_id) | |
703 | show_log(rev); | |
704 | ||
705 | dump_quoted_path(dense ? "diff --cc " : "diff --combined ", | |
706 | "", elem->path, c_meta, c_reset); | |
707 | printf("%sindex ", c_meta); | |
708 | for (i = 0; i < num_parent; i++) { | |
709 | abb = find_unique_abbrev(elem->parent[i].sha1, | |
710 | abbrev); | |
711 | printf("%s%s", i ? "," : "", abb); | |
712 | } | |
713 | abb = find_unique_abbrev(elem->sha1, abbrev); | |
714 | printf("..%s%s\n", abb, c_reset); | |
715 | ||
716 | if (mode_differs) { | |
717 | deleted = !elem->mode; | |
718 | ||
719 | /* We say it was added if nobody had it */ | |
720 | added = !deleted; | |
721 | for (i = 0; added && i < num_parent; i++) | |
722 | if (elem->parent[i].status != | |
723 | DIFF_STATUS_ADDED) | |
724 | added = 0; | |
725 | if (added) | |
726 | printf("%snew file mode %06o", | |
727 | c_meta, elem->mode); | |
728 | else { | |
729 | if (deleted) | |
730 | printf("%sdeleted file ", c_meta); | |
731 | printf("mode "); | |
732 | for (i = 0; i < num_parent; i++) { | |
733 | printf("%s%06o", i ? "," : "", | |
734 | elem->parent[i].mode); | |
735 | } | |
736 | if (elem->mode) | |
737 | printf("..%06o", elem->mode); | |
738 | } | |
739 | printf("%s\n", c_reset); | |
740 | } | |
741 | ||
742 | if (added) | |
743 | dump_quoted_path("--- ", "", "/dev/null", | |
744 | c_meta, c_reset); | |
745 | else | |
746 | dump_quoted_path("--- ", a_prefix, elem->path, | |
747 | c_meta, c_reset); | |
748 | if (deleted) | |
749 | dump_quoted_path("+++ ", "", "/dev/null", | |
750 | c_meta, c_reset); | |
751 | else | |
752 | dump_quoted_path("+++ ", b_prefix, elem->path, | |
753 | c_meta, c_reset); | |
754 | } | |
755 | ||
89b0c4b5 JH |
756 | static void show_patch_diff(struct combine_diff_path *elem, int num_parent, |
757 | int dense, struct rev_info *rev) | |
af3feefa | 758 | { |
91539833 | 759 | struct diff_options *opt = &rev->diffopt; |
f23fc773 | 760 | unsigned long result_size, cnt, lno; |
21798708 | 761 | int result_deleted = 0; |
310f8b5b | 762 | char *result, *cp; |
af3feefa | 763 | struct sline *sline; /* survived lines */ |
2454c962 | 764 | int mode_differs = 0; |
89b0c4b5 | 765 | int i, show_hunks; |
0bef57ee | 766 | int working_tree_file = is_null_sha1(elem->sha1); |
f23fc773 | 767 | mmfile_t result_file; |
af3feefa | 768 | |
ee1e5412 | 769 | context = opt->context; |
a5a818ee | 770 | |
af3feefa | 771 | /* Read the result of merge first */ |
f23fc773 | 772 | if (!working_tree_file) |
7dae8b21 | 773 | result = grab_blob(elem->sha1, elem->mode, &result_size); |
ea726d02 | 774 | else { |
9843a1f6 | 775 | /* Used by diff-tree to read from the working tree */ |
ea726d02 | 776 | struct stat st; |
4fc970c4 JH |
777 | int fd = -1; |
778 | ||
779 | if (lstat(elem->path, &st) < 0) | |
780 | goto deleted_file; | |
781 | ||
782 | if (S_ISLNK(st.st_mode)) { | |
912342d9 JH |
783 | struct strbuf buf = STRBUF_INIT; |
784 | ||
785 | if (strbuf_readlink(&buf, elem->path, st.st_size) < 0) { | |
4fc970c4 JH |
786 | error("readlink(%s): %s", elem->path, |
787 | strerror(errno)); | |
788 | return; | |
789 | } | |
912342d9 JH |
790 | result_size = buf.len; |
791 | result = strbuf_detach(&buf, NULL); | |
4fc970c4 | 792 | elem->mode = canon_mode(st.st_mode); |
7dae8b21 JH |
793 | } else if (S_ISDIR(st.st_mode)) { |
794 | unsigned char sha1[20]; | |
795 | if (resolve_gitlink_ref(elem->path, "HEAD", sha1) < 0) | |
796 | result = grab_blob(elem->sha1, elem->mode, &result_size); | |
797 | else | |
798 | result = grab_blob(sha1, elem->mode, &result_size); | |
91fcbcbd | 799 | } else if (0 <= (fd = open(elem->path, O_RDONLY))) { |
dc49cd76 | 800 | size_t len = xsize_t(st.st_size); |
c697ad14 | 801 | ssize_t done; |
a249a9b5 | 802 | int is_file, i; |
ea726d02 | 803 | |
1b0c7174 | 804 | elem->mode = canon_mode(st.st_mode); |
a249a9b5 JS |
805 | /* if symlinks don't work, assume symlink if all parents |
806 | * are symlinks | |
807 | */ | |
808 | is_file = has_symlinks; | |
809 | for (i = 0; !is_file && i < num_parent; i++) | |
810 | is_file = !S_ISLNK(elem->parent[i].mode); | |
811 | if (!is_file) | |
812 | elem->mode = canon_mode(S_IFLNK); | |
813 | ||
f23fc773 | 814 | result_size = len; |
ea726d02 | 815 | result = xmalloc(len + 1); |
c697ad14 HO |
816 | |
817 | done = read_in_full(fd, result, len); | |
818 | if (done < 0) | |
0721c314 | 819 | die_errno("read error '%s'", elem->path); |
c697ad14 HO |
820 | else if (done < len) |
821 | die("early EOF '%s'", elem->path); | |
822 | ||
ea726d02 | 823 | result[len] = 0; |
5e568f9e AG |
824 | |
825 | /* If not a fake symlink, apply filters, e.g. autocrlf */ | |
826 | if (is_file) { | |
f285a2d7 | 827 | struct strbuf buf = STRBUF_INIT; |
5e568f9e | 828 | |
5e568f9e AG |
829 | if (convert_to_git(elem->path, result, len, &buf, safe_crlf)) { |
830 | free(result); | |
831 | result = strbuf_detach(&buf, &len); | |
832 | result_size = len; | |
833 | } | |
834 | } | |
ea726d02 JH |
835 | } |
836 | else { | |
4fc970c4 | 837 | deleted_file: |
21798708 | 838 | result_deleted = 1; |
f23fc773 | 839 | result_size = 0; |
713a11fc | 840 | elem->mode = 0; |
28f75818 | 841 | result = xcalloc(1, 1); |
ea726d02 | 842 | } |
4fc970c4 | 843 | |
ea726d02 JH |
844 | if (0 <= fd) |
845 | close(fd); | |
846 | } | |
af3feefa | 847 | |
2386c297 | 848 | for (cnt = 0, cp = result; cp < result + result_size; cp++) { |
af3feefa JH |
849 | if (*cp == '\n') |
850 | cnt++; | |
851 | } | |
f23fc773 | 852 | if (result_size && result[result_size-1] != '\n') |
af3feefa JH |
853 | cnt++; /* incomplete line */ |
854 | ||
8a470ebf | 855 | sline = xcalloc(cnt+2, sizeof(*sline)); |
af3feefa | 856 | sline[0].bol = result; |
8a470ebf | 857 | for (lno = 0; lno <= cnt + 1; lno++) { |
4462731e JH |
858 | sline[lno].lost_tail = &sline[lno].lost_head; |
859 | sline[lno].flag = 0; | |
860 | } | |
2386c297 | 861 | for (lno = 0, cp = result; cp < result + result_size; cp++) { |
af3feefa JH |
862 | if (*cp == '\n') { |
863 | sline[lno].len = cp - sline[lno].bol; | |
af3feefa JH |
864 | lno++; |
865 | if (lno < cnt) | |
866 | sline[lno].bol = cp + 1; | |
867 | } | |
868 | } | |
f23fc773 JH |
869 | if (result_size && result[result_size-1] != '\n') |
870 | sline[cnt-1].len = result_size - (sline[cnt-1].bol - result); | |
871 | ||
872 | result_file.ptr = result; | |
873 | result_file.size = result_size; | |
af3feefa | 874 | |
8a470ebf JH |
875 | /* Even p_lno[cnt+1] is valid -- that is for the end line number |
876 | * for deletion hunk at the end. | |
877 | */ | |
878 | sline[0].p_lno = xcalloc((cnt+2) * num_parent, sizeof(unsigned long)); | |
879 | for (lno = 0; lno <= cnt; lno++) | |
f16706cc JH |
880 | sline[lno+1].p_lno = sline[lno].p_lno + num_parent; |
881 | ||
3c39e9bd JH |
882 | for (i = 0; i < num_parent; i++) { |
883 | int j; | |
884 | for (j = 0; j < i; j++) { | |
a89fccd2 DR |
885 | if (!hashcmp(elem->parent[i].sha1, |
886 | elem->parent[j].sha1)) { | |
3c39e9bd JH |
887 | reuse_combine_diff(sline, cnt, i, j); |
888 | break; | |
889 | } | |
890 | } | |
891 | if (i <= j) | |
7dae8b21 JH |
892 | combine_diff(elem->parent[i].sha1, |
893 | elem->parent[i].mode, | |
894 | &result_file, sline, | |
21798708 | 895 | cnt, i, num_parent, result_deleted); |
2454c962 JH |
896 | if (elem->parent[i].mode != elem->mode) |
897 | mode_differs = 1; | |
3c39e9bd | 898 | } |
af3feefa | 899 | |
8828cdcb | 900 | show_hunks = make_hunks(sline, cnt, num_parent, dense); |
af3feefa | 901 | |
713a11fc | 902 | if (show_hunks || mode_differs || working_tree_file) { |
7c978a06 JK |
903 | show_combined_header(elem, num_parent, dense, rev, |
904 | mode_differs); | |
462a15bc | 905 | dump_sline(sline, cnt, num_parent, |
21798708 | 906 | DIFF_OPT_TST(opt, COLOR_DIFF), result_deleted); |
8828cdcb | 907 | } |
af3feefa JH |
908 | free(result); |
909 | ||
2386c297 JH |
910 | for (lno = 0; lno < cnt; lno++) { |
911 | if (sline[lno].lost_head) { | |
912 | struct lline *ll = sline[lno].lost_head; | |
af3feefa JH |
913 | while (ll) { |
914 | struct lline *tmp = ll; | |
915 | ll = ll->next; | |
916 | free(tmp); | |
917 | } | |
918 | } | |
919 | } | |
46dc9412 | 920 | free(sline[0].p_lno); |
af3feefa JH |
921 | free(sline); |
922 | } | |
923 | ||
ee638024 LT |
924 | #define COLONS "::::::::::::::::::::::::::::::::" |
925 | ||
91539833 | 926 | static void show_raw_diff(struct combine_diff_path *p, int num_parent, struct rev_info *rev) |
ee638024 | 927 | { |
91539833 | 928 | struct diff_options *opt = &rev->diffopt; |
310f8b5b | 929 | int i, offset; |
ee638024 LT |
930 | const char *prefix; |
931 | int line_termination, inter_name_termination; | |
932 | ||
933 | line_termination = opt->line_termination; | |
934 | inter_name_termination = '\t'; | |
935 | if (!line_termination) | |
936 | inter_name_termination = 0; | |
937 | ||
44152787 | 938 | if (rev->loginfo && !rev->no_commit_id) |
02865655 | 939 | show_log(rev); |
ee638024 | 940 | |
c6744349 | 941 | if (opt->output_format & DIFF_FORMAT_RAW) { |
0a798076 JH |
942 | offset = strlen(COLONS) - num_parent; |
943 | if (offset < 0) | |
944 | offset = 0; | |
945 | prefix = COLONS + offset; | |
946 | ||
947 | /* Show the modes */ | |
948 | for (i = 0; i < num_parent; i++) { | |
949 | printf("%s%06o", prefix, p->parent[i].mode); | |
950 | prefix = " "; | |
951 | } | |
952 | printf("%s%06o", prefix, p->mode); | |
953 | ||
954 | /* Show sha1's */ | |
955 | for (i = 0; i < num_parent; i++) | |
956 | printf(" %s", diff_unique_abbrev(p->parent[i].sha1, | |
957 | opt->abbrev)); | |
958 | printf(" %s ", diff_unique_abbrev(p->sha1, opt->abbrev)); | |
959 | } | |
960 | ||
c6744349 | 961 | if (opt->output_format & (DIFF_FORMAT_RAW | DIFF_FORMAT_NAME_STATUS)) { |
d416df88 JH |
962 | for (i = 0; i < num_parent; i++) |
963 | putchar(p->parent[i].status); | |
964 | putchar(inter_name_termination); | |
965 | } | |
0a798076 | 966 | |
663af342 | 967 | write_name_quoted(p->path, stdout, line_termination); |
0a798076 JH |
968 | } |
969 | ||
91539833 | 970 | void show_combined_diff(struct combine_diff_path *p, |
0a798076 JH |
971 | int num_parent, |
972 | int dense, | |
91539833 | 973 | struct rev_info *rev) |
0a798076 | 974 | { |
91539833 | 975 | struct diff_options *opt = &rev->diffopt; |
0a798076 | 976 | if (!p->len) |
91539833 | 977 | return; |
c6744349 TH |
978 | if (opt->output_format & (DIFF_FORMAT_RAW | |
979 | DIFF_FORMAT_NAME | | |
89b0c4b5 | 980 | DIFF_FORMAT_NAME_STATUS)) |
91539833 | 981 | show_raw_diff(p, num_parent, rev); |
89b0c4b5 | 982 | else if (opt->output_format & DIFF_FORMAT_PATCH) |
91539833 | 983 | show_patch_diff(p, num_parent, dense, rev); |
ee638024 LT |
984 | } |
985 | ||
0fe7c1de JH |
986 | void diff_tree_combined(const unsigned char *sha1, |
987 | const unsigned char parent[][20], | |
988 | int num_parent, | |
989 | int dense, | |
990 | struct rev_info *rev) | |
af3feefa | 991 | { |
91539833 | 992 | struct diff_options *opt = &rev->diffopt; |
af3feefa | 993 | struct diff_options diffopts; |
ea726d02 | 994 | struct combine_diff_path *p, *paths = NULL; |
3969cf7d | 995 | int i, num_paths, needsep, show_log_first; |
af3feefa | 996 | |
5b236832 | 997 | diffopts = *opt; |
3969cf7d | 998 | diffopts.output_format = DIFF_FORMAT_NO_OUTPUT; |
8f67f8ae PH |
999 | DIFF_OPT_SET(&diffopts, RECURSIVE); |
1000 | DIFF_OPT_CLR(&diffopts, ALLOW_EXTERNAL); | |
af3feefa | 1001 | |
44152787 | 1002 | show_log_first = !!rev->loginfo && !rev->no_commit_id; |
3969cf7d | 1003 | needsep = 0; |
af3feefa | 1004 | /* find set of paths that everybody touches */ |
0fe7c1de | 1005 | for (i = 0; i < num_parent; i++) { |
965f803c JH |
1006 | /* show stat against the first parent even |
1007 | * when doing combined diff. | |
1008 | */ | |
74e2abe5 JH |
1009 | int stat_opt = (opt->output_format & |
1010 | (DIFF_FORMAT_NUMSTAT|DIFF_FORMAT_DIFFSTAT)); | |
1011 | if (i == 0 && stat_opt) | |
1012 | diffopts.output_format = stat_opt; | |
965f803c JH |
1013 | else |
1014 | diffopts.output_format = DIFF_FORMAT_NO_OUTPUT; | |
0fe7c1de | 1015 | diff_tree_sha1(parent[i], sha1, "", &diffopts); |
5b236832 | 1016 | diffcore_std(&diffopts); |
af3feefa | 1017 | paths = intersect_paths(paths, i, num_parent); |
eab144ac | 1018 | |
3969cf7d | 1019 | if (show_log_first && i == 0) { |
02865655 | 1020 | show_log(rev); |
3969cf7d JH |
1021 | if (rev->verbose_header && opt->output_format) |
1022 | putchar(opt->line_termination); | |
1023 | } | |
af3feefa JH |
1024 | diff_flush(&diffopts); |
1025 | } | |
1026 | ||
1027 | /* find out surviving paths */ | |
1028 | for (num_paths = 0, p = paths; p; p = p->next) { | |
1029 | if (p->len) | |
1030 | num_paths++; | |
1031 | } | |
e3c3a550 | 1032 | if (num_paths) { |
c6744349 TH |
1033 | if (opt->output_format & (DIFF_FORMAT_RAW | |
1034 | DIFF_FORMAT_NAME | | |
1035 | DIFF_FORMAT_NAME_STATUS)) { | |
86ff1d20 | 1036 | for (p = paths; p; p = p->next) { |
c6744349 TH |
1037 | if (p->len) |
1038 | show_raw_diff(p, num_parent, rev); | |
86ff1d20 | 1039 | } |
3969cf7d | 1040 | needsep = 1; |
86ff1d20 | 1041 | } |
74e2abe5 JH |
1042 | else if (opt->output_format & |
1043 | (DIFF_FORMAT_NUMSTAT|DIFF_FORMAT_DIFFSTAT)) | |
3969cf7d | 1044 | needsep = 1; |
c6744349 | 1045 | if (opt->output_format & DIFF_FORMAT_PATCH) { |
3969cf7d JH |
1046 | if (needsep) |
1047 | putchar(opt->line_termination); | |
c6744349 TH |
1048 | for (p = paths; p; p = p->next) { |
1049 | if (p->len) | |
1050 | show_patch_diff(p, num_parent, dense, | |
1051 | rev); | |
1052 | } | |
af3feefa JH |
1053 | } |
1054 | } | |
1055 | ||
1056 | /* Clean things up */ | |
1057 | while (paths) { | |
ea726d02 | 1058 | struct combine_diff_path *tmp = paths; |
af3feefa JH |
1059 | paths = paths->next; |
1060 | free(tmp); | |
1061 | } | |
af3feefa | 1062 | } |
0fe7c1de JH |
1063 | |
1064 | void diff_tree_combined_merge(const unsigned char *sha1, | |
1065 | int dense, struct rev_info *rev) | |
1066 | { | |
1067 | int num_parent; | |
1068 | const unsigned char (*parent)[20]; | |
1069 | struct commit *commit = lookup_commit(sha1); | |
1070 | struct commit_list *parents; | |
1071 | ||
1072 | /* count parents */ | |
1073 | for (parents = commit->parents, num_parent = 0; | |
1074 | parents; | |
1075 | parents = parents->next, num_parent++) | |
1076 | ; /* nothing */ | |
1077 | ||
1078 | parent = xmalloc(num_parent * sizeof(*parent)); | |
1079 | for (parents = commit->parents, num_parent = 0; | |
1080 | parents; | |
1081 | parents = parents->next, num_parent++) | |
4b25d091 | 1082 | hashcpy((unsigned char *)(parent + num_parent), |
e702496e | 1083 | parents->item->object.sha1); |
0fe7c1de JH |
1084 | diff_tree_combined(sha1, parent, num_parent, dense, rev); |
1085 | } |