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Commit | Line | Data |
---|---|---|
e0965d83 | 1 | #include <ctype.h> |
9174026c | 2 | #include "cache.h" |
3ebfd4aa | 3 | #include "diff.h" |
9174026c | 4 | |
f4f21ce3 | 5 | static int silent = 0; |
dc26bd89 | 6 | static int show_root_diff = 0; |
cee99d22 | 7 | static int verbose_header = 0; |
e0965d83 | 8 | static int ignore_merges = 1; |
73134b6d | 9 | static int recursive = 0; |
e0965d83 | 10 | static int read_stdin = 0; |
81e50eab | 11 | static int diff_output_format = DIFF_FORMAT_HUMAN; |
5c97558c | 12 | static int detect_rename = 0; |
de809dbb | 13 | static int reverse_diff = 0; |
57fe64a4 | 14 | static int diff_score_opt = 0; |
057c7d30 | 15 | static const char *pickaxe = NULL; |
f4f21ce3 | 16 | static const char *header = NULL; |
cee99d22 | 17 | static const char *header_prefix = ""; |
9174026c | 18 | |
c5b42386 LT |
19 | // What paths are we interested in? |
20 | static int nr_paths = 0; | |
6b14d7fa | 21 | static const char **paths = NULL; |
c5b42386 LT |
22 | static int *pathlens = NULL; |
23 | ||
eeb79916 | 24 | static int diff_tree_sha1(const unsigned char *old, const unsigned char *new, const char *base); |
73134b6d LT |
25 | |
26 | static void update_tree_entry(void **bufp, unsigned long *sizep) | |
9174026c LT |
27 | { |
28 | void *buf = *bufp; | |
29 | unsigned long size = *sizep; | |
30 | int len = strlen(buf) + 1 + 20; | |
31 | ||
32 | if (size < len) | |
2de381f9 | 33 | die("corrupt tree file"); |
9174026c LT |
34 | *bufp = buf + len; |
35 | *sizep = size - len; | |
9174026c LT |
36 | } |
37 | ||
38 | static const unsigned char *extract(void *tree, unsigned long size, const char **pathp, unsigned int *modep) | |
39 | { | |
40 | int len = strlen(tree)+1; | |
41 | const unsigned char *sha1 = tree + len; | |
42 | const char *path = strchr(tree, ' '); | |
43 | ||
44 | if (!path || size < len + 20 || sscanf(tree, "%o", modep) != 1) | |
2de381f9 | 45 | die("corrupt tree file"); |
9174026c LT |
46 | *pathp = path+1; |
47 | return sha1; | |
48 | } | |
49 | ||
262e82b4 LT |
50 | static char *malloc_base(const char *base, const char *path, int pathlen) |
51 | { | |
52 | int baselen = strlen(base); | |
812666c8 | 53 | char *newbase = xmalloc(baselen + pathlen + 2); |
262e82b4 LT |
54 | memcpy(newbase, base, baselen); |
55 | memcpy(newbase + baselen, path, pathlen); | |
56 | memcpy(newbase + baselen + pathlen, "/", 2); | |
57 | return newbase; | |
58 | } | |
59 | ||
60 | static void show_file(const char *prefix, void *tree, unsigned long size, const char *base); | |
ed1a368b | 61 | static void show_tree(const char *prefix, void *tree, unsigned long size, const char *base); |
262e82b4 LT |
62 | |
63 | /* A file entry went away or appeared */ | |
73134b6d | 64 | static void show_file(const char *prefix, void *tree, unsigned long size, const char *base) |
9174026c LT |
65 | { |
66 | unsigned mode; | |
67 | const char *path; | |
68 | const unsigned char *sha1 = extract(tree, size, &path, &mode); | |
262e82b4 | 69 | |
f4f21ce3 LT |
70 | if (silent) |
71 | return; | |
72 | ||
262e82b4 LT |
73 | if (recursive && S_ISDIR(mode)) { |
74 | char type[20]; | |
75 | unsigned long size; | |
76 | char *newbase = malloc_base(base, path, strlen(path)); | |
77 | void *tree; | |
78 | ||
79 | tree = read_sha1_file(sha1, type, &size); | |
80 | if (!tree || strcmp(type, "tree")) | |
2de381f9 | 81 | die("corrupt tree sha %s", sha1_to_hex(sha1)); |
262e82b4 LT |
82 | |
83 | show_tree(prefix, tree, size, newbase); | |
57fe64a4 | 84 | |
262e82b4 LT |
85 | free(tree); |
86 | free(newbase); | |
87 | return; | |
88 | } | |
89 | ||
57fe64a4 | 90 | diff_addremove(prefix[0], mode, sha1, base, path); |
9174026c LT |
91 | } |
92 | ||
eeb79916 | 93 | static int compare_tree_entry(void *tree1, unsigned long size1, void *tree2, unsigned long size2, const char *base) |
9174026c LT |
94 | { |
95 | unsigned mode1, mode2; | |
96 | const char *path1, *path2; | |
97 | const unsigned char *sha1, *sha2; | |
73134b6d | 98 | int cmp, pathlen1, pathlen2; |
9174026c LT |
99 | |
100 | sha1 = extract(tree1, size1, &path1, &mode1); | |
101 | sha2 = extract(tree2, size2, &path2, &mode2); | |
102 | ||
73134b6d LT |
103 | pathlen1 = strlen(path1); |
104 | pathlen2 = strlen(path2); | |
e46091d5 | 105 | cmp = base_name_compare(path1, pathlen1, mode1, path2, pathlen2, mode2); |
9174026c | 106 | if (cmp < 0) { |
eeb79916 | 107 | show_file("-", tree1, size1, base); |
9174026c LT |
108 | return -1; |
109 | } | |
110 | if (cmp > 0) { | |
eeb79916 | 111 | show_file("+", tree2, size2, base); |
9174026c LT |
112 | return 1; |
113 | } | |
114 | if (!memcmp(sha1, sha2, 20) && mode1 == mode2) | |
115 | return 0; | |
262e82b4 LT |
116 | |
117 | /* | |
118 | * If the filemode has changed to/from a directory from/to a regular | |
aebb2679 | 119 | * file, we need to consider it a remove and an add. |
262e82b4 LT |
120 | */ |
121 | if (S_ISDIR(mode1) != S_ISDIR(mode2)) { | |
122 | show_file("-", tree1, size1, base); | |
123 | show_file("+", tree2, size2, base); | |
124 | return 0; | |
125 | } | |
126 | ||
127 | if (recursive && S_ISDIR(mode1)) { | |
eeb79916 | 128 | int retval; |
262e82b4 | 129 | char *newbase = malloc_base(base, path1, pathlen1); |
eeb79916 LT |
130 | retval = diff_tree_sha1(sha1, sha2, newbase); |
131 | free(newbase); | |
132 | return retval; | |
73134b6d LT |
133 | } |
134 | ||
f4f21ce3 LT |
135 | if (silent) |
136 | return 0; | |
137 | ||
57fe64a4 | 138 | diff_change(mode1, mode2, sha1, sha2, base, path1); |
9174026c LT |
139 | return 0; |
140 | } | |
141 | ||
c5b42386 LT |
142 | static int interesting(void *tree, unsigned long size, const char *base) |
143 | { | |
144 | const char *path; | |
145 | unsigned mode; | |
146 | int i; | |
147 | int baselen, pathlen; | |
148 | ||
149 | if (!nr_paths) | |
150 | return 1; | |
151 | ||
152 | (void)extract(tree, size, &path, &mode); | |
153 | ||
154 | pathlen = strlen(path); | |
155 | baselen = strlen(base); | |
156 | ||
157 | for (i=0; i < nr_paths; i++) { | |
158 | const char *match = paths[i]; | |
159 | int matchlen = pathlens[i]; | |
160 | ||
161 | if (baselen >= matchlen) { | |
162 | /* If it doesn't match, move along... */ | |
163 | if (strncmp(base, match, matchlen)) | |
164 | continue; | |
165 | ||
166 | /* The base is a subdirectory of a path which was specified. */ | |
167 | return 1; | |
168 | } | |
169 | ||
170 | /* Does the base match? */ | |
171 | if (strncmp(base, match, baselen)) | |
172 | continue; | |
173 | ||
174 | match += baselen; | |
175 | matchlen -= baselen; | |
176 | ||
177 | if (pathlen > matchlen) | |
178 | continue; | |
179 | ||
cb6c8ed2 LT |
180 | if (matchlen > pathlen) { |
181 | if (match[pathlen] != '/') | |
182 | continue; | |
850e82d8 LT |
183 | if (!S_ISDIR(mode)) |
184 | continue; | |
cb6c8ed2 LT |
185 | } |
186 | ||
c5b42386 LT |
187 | if (strncmp(path, match, pathlen)) |
188 | continue; | |
189 | ||
190 | return 1; | |
191 | } | |
192 | return 0; /* No matches */ | |
193 | } | |
194 | ||
ed1a368b LT |
195 | /* A whole sub-tree went away or appeared */ |
196 | static void show_tree(const char *prefix, void *tree, unsigned long size, const char *base) | |
197 | { | |
198 | while (size) { | |
199 | if (interesting(tree, size, base)) | |
200 | show_file(prefix, tree, size, base); | |
201 | update_tree_entry(&tree, &size); | |
202 | } | |
203 | } | |
204 | ||
eeb79916 | 205 | static int diff_tree(void *tree1, unsigned long size1, void *tree2, unsigned long size2, const char *base) |
9174026c LT |
206 | { |
207 | while (size1 | size2) { | |
c5b42386 LT |
208 | if (nr_paths && size1 && !interesting(tree1, size1, base)) { |
209 | update_tree_entry(&tree1, &size1); | |
210 | continue; | |
211 | } | |
212 | if (nr_paths && size2 && !interesting(tree2, size2, base)) { | |
213 | update_tree_entry(&tree2, &size2); | |
214 | continue; | |
215 | } | |
9174026c | 216 | if (!size1) { |
eeb79916 | 217 | show_file("+", tree2, size2, base); |
9174026c LT |
218 | update_tree_entry(&tree2, &size2); |
219 | continue; | |
220 | } | |
221 | if (!size2) { | |
eeb79916 | 222 | show_file("-", tree1, size1, base); |
9174026c LT |
223 | update_tree_entry(&tree1, &size1); |
224 | continue; | |
225 | } | |
eeb79916 | 226 | switch (compare_tree_entry(tree1, size1, tree2, size2, base)) { |
9174026c LT |
227 | case -1: |
228 | update_tree_entry(&tree1, &size1); | |
229 | continue; | |
230 | case 0: | |
231 | update_tree_entry(&tree1, &size1); | |
232 | /* Fallthrough */ | |
233 | case 1: | |
234 | update_tree_entry(&tree2, &size2); | |
235 | continue; | |
236 | } | |
667bb59b | 237 | die("git-diff-tree: internal error"); |
9174026c LT |
238 | } |
239 | return 0; | |
240 | } | |
241 | ||
eeb79916 | 242 | static int diff_tree_sha1(const unsigned char *old, const unsigned char *new, const char *base) |
9174026c | 243 | { |
9174026c LT |
244 | void *tree1, *tree2; |
245 | unsigned long size1, size2; | |
73134b6d | 246 | int retval; |
9174026c | 247 | |
e99d59ff | 248 | tree1 = read_object_with_reference(old, "tree", &size1, NULL); |
c1fdf2a6 | 249 | if (!tree1) |
2de381f9 | 250 | die("unable to read source tree (%s)", sha1_to_hex(old)); |
e99d59ff | 251 | tree2 = read_object_with_reference(new, "tree", &size2, NULL); |
c1fdf2a6 | 252 | if (!tree2) |
2de381f9 | 253 | die("unable to read destination tree (%s)", sha1_to_hex(new)); |
eeb79916 | 254 | retval = diff_tree(tree1, size1, tree2, size2, base); |
73134b6d LT |
255 | free(tree1); |
256 | free(tree2); | |
257 | return retval; | |
258 | } | |
259 | ||
38c6f780 JH |
260 | static void call_diff_setup(void) |
261 | { | |
6b14d7fa | 262 | diff_setup(reverse_diff); |
38c6f780 JH |
263 | } |
264 | ||
09d74b3b | 265 | static int call_diff_flush(void) |
38c6f780 JH |
266 | { |
267 | if (detect_rename) | |
6b14d7fa JH |
268 | diffcore_rename(detect_rename, diff_score_opt); |
269 | diffcore_prune(); | |
270 | if (pickaxe) { | |
271 | diffcore_pickaxe(pickaxe); | |
272 | if (diff_queue_is_empty()) { | |
273 | diff_flush(DIFF_FORMAT_NO_OUTPUT); | |
274 | return 0; | |
275 | } | |
276 | } | |
277 | if (nr_paths) | |
278 | diffcore_pathspec(paths); | |
279 | if (header) { | |
5831b563 JH |
280 | if (diff_output_format == DIFF_FORMAT_MACHINE) { |
281 | const char *ep, *cp; | |
282 | for (cp = header; *cp; cp = ep) { | |
283 | ep = strchr(cp, '\n'); | |
284 | if (ep == 0) ep = cp + strlen(cp); | |
285 | printf("%.*s%c", ep-cp, cp, 0); | |
286 | if (*ep) ep++; | |
287 | } | |
288 | } | |
289 | else { | |
290 | printf("%s", header); | |
291 | } | |
6b14d7fa JH |
292 | header = NULL; |
293 | } | |
294 | diff_flush(diff_output_format); | |
295 | return 1; | |
38c6f780 JH |
296 | } |
297 | ||
5c97558c JH |
298 | static int diff_tree_sha1_top(const unsigned char *old, |
299 | const unsigned char *new, const char *base) | |
300 | { | |
301 | int ret; | |
57fe64a4 | 302 | |
38c6f780 | 303 | call_diff_setup(); |
5c97558c | 304 | ret = diff_tree_sha1(old, new, base); |
38c6f780 | 305 | call_diff_flush(); |
5c97558c JH |
306 | return ret; |
307 | } | |
308 | ||
dc26bd89 LT |
309 | static int diff_root_tree(const unsigned char *new, const char *base) |
310 | { | |
311 | int retval; | |
312 | void *tree; | |
313 | unsigned long size; | |
314 | ||
38c6f780 | 315 | call_diff_setup(); |
e99d59ff | 316 | tree = read_object_with_reference(new, "tree", &size, NULL); |
dc26bd89 LT |
317 | if (!tree) |
318 | die("unable to read root tree (%s)", sha1_to_hex(new)); | |
319 | retval = diff_tree("", 0, tree, size, base); | |
320 | free(tree); | |
38c6f780 | 321 | call_diff_flush(); |
dc26bd89 LT |
322 | return retval; |
323 | } | |
324 | ||
cee99d22 LT |
325 | static int get_one_line(const char *msg, unsigned long len) |
326 | { | |
327 | int ret = 0; | |
328 | ||
329 | while (len--) { | |
330 | ret++; | |
331 | if (*msg++ == '\n') | |
332 | break; | |
333 | } | |
334 | return ret; | |
335 | } | |
336 | ||
a02ebff6 LT |
337 | static int add_author_info(char *buf, const char *line, int len) |
338 | { | |
339 | char *date; | |
340 | unsigned int namelen; | |
341 | unsigned long time; | |
342 | int tz; | |
343 | ||
344 | line += strlen("author "); | |
345 | date = strchr(line, '>'); | |
346 | if (!date) | |
347 | return 0; | |
348 | namelen = ++date - line; | |
349 | time = strtoul(date, &date, 10); | |
350 | tz = strtol(date, NULL, 10); | |
351 | ||
352 | return sprintf(buf, "Author: %.*s\nDate: %s\n", | |
353 | namelen, line, | |
354 | show_date(time, tz)); | |
355 | } | |
356 | ||
cee99d22 LT |
357 | static char *generate_header(const char *commit, const char *parent, const char *msg, unsigned long len) |
358 | { | |
3258c902 | 359 | static char this_header[16384]; |
cee99d22 LT |
360 | int offset; |
361 | ||
362 | offset = sprintf(this_header, "%s%s (from %s)\n", header_prefix, commit, parent); | |
363 | if (verbose_header) { | |
364 | int hdr = 1; | |
365 | ||
366 | for (;;) { | |
367 | const char *line = msg; | |
368 | int linelen = get_one_line(msg, len); | |
369 | ||
370 | if (!linelen) | |
371 | break; | |
3258c902 LT |
372 | |
373 | /* | |
374 | * We want some slop for indentation and a possible | |
375 | * final "...". Thus the "+ 20". | |
376 | */ | |
377 | if (offset + linelen + 20 > sizeof(this_header)) { | |
378 | memcpy(this_header + offset, " ...\n", 8); | |
379 | offset += 8; | |
cee99d22 | 380 | break; |
3258c902 | 381 | } |
cee99d22 LT |
382 | |
383 | msg += linelen; | |
384 | len -= linelen; | |
385 | if (linelen == 1) | |
386 | hdr = 0; | |
a02ebff6 LT |
387 | if (hdr) { |
388 | if (!memcmp(line, "author ", 7)) | |
389 | offset += add_author_info(this_header + offset, line, linelen); | |
cee99d22 | 390 | continue; |
a02ebff6 | 391 | } |
cee99d22 LT |
392 | memset(this_header + offset, ' ', 4); |
393 | memcpy(this_header + offset + 4, line, linelen); | |
394 | offset += linelen + 4; | |
395 | } | |
3258c902 LT |
396 | /* Make sure there is an EOLN */ |
397 | if (this_header[offset-1] != '\n') | |
398 | this_header[offset++] = '\n'; | |
399 | /* Add _another_ EOLN if we are doing diff output */ | |
400 | if (!silent) | |
401 | this_header[offset++] = '\n'; | |
cee99d22 LT |
402 | this_header[offset] = 0; |
403 | } | |
404 | ||
405 | return this_header; | |
406 | } | |
407 | ||
b11645be | 408 | static int diff_tree_commit(const unsigned char *commit, const char *name) |
e0965d83 | 409 | { |
e0965d83 | 410 | unsigned long size, offset; |
b11645be | 411 | char *buf = read_object_with_reference(commit, "commit", &size, NULL); |
e0965d83 | 412 | |
e0965d83 LT |
413 | if (!buf) |
414 | return -1; | |
415 | ||
73848892 LT |
416 | if (!name) { |
417 | static char commit_name[60]; | |
418 | strcpy(commit_name, sha1_to_hex(commit)); | |
419 | name = commit_name; | |
420 | } | |
421 | ||
dc26bd89 LT |
422 | /* Root commit? */ |
423 | if (show_root_diff && memcmp(buf + 46, "parent ", 7)) { | |
424 | header = generate_header(name, "root", buf, size); | |
425 | diff_root_tree(commit, ""); | |
426 | } | |
427 | ||
428 | /* More than one parent? */ | |
429 | if (ignore_merges) { | |
430 | if (!memcmp(buf + 46 + 48, "parent ", 7)) | |
431 | return 0; | |
432 | } | |
433 | ||
e0965d83 LT |
434 | offset = 46; |
435 | while (offset + 48 < size && !memcmp(buf + offset, "parent ", 7)) { | |
b11645be | 436 | unsigned char parent[20]; |
e0965d83 LT |
437 | if (get_sha1_hex(buf + offset + 7, parent)) |
438 | return -1; | |
b11645be | 439 | header = generate_header(name, sha1_to_hex(parent), buf, size); |
5c97558c | 440 | diff_tree_sha1_top(parent, commit, ""); |
d6db0107 | 441 | if (!header && verbose_header) { |
cee99d22 | 442 | header_prefix = "\ndiff-tree "; |
d6db0107 LT |
443 | /* |
444 | * Don't print multiple merge entries if we | |
445 | * don't print the diffs. | |
446 | */ | |
447 | if (silent) | |
448 | break; | |
449 | } | |
e0965d83 LT |
450 | offset += 48; |
451 | } | |
b11645be LT |
452 | return 0; |
453 | } | |
454 | ||
455 | static int diff_tree_stdin(char *line) | |
456 | { | |
457 | int len = strlen(line); | |
458 | unsigned char commit[20], parent[20]; | |
459 | static char this_header[1000]; | |
460 | ||
461 | if (!len || line[len-1] != '\n') | |
462 | return -1; | |
463 | line[len-1] = 0; | |
464 | if (get_sha1_hex(line, commit)) | |
465 | return -1; | |
466 | if (isspace(line[40]) && !get_sha1_hex(line+41, parent)) { | |
467 | line[40] = 0; | |
468 | line[81] = 0; | |
469 | sprintf(this_header, "%s (from %s)\n", line, line+41); | |
470 | header = this_header; | |
5c97558c | 471 | return diff_tree_sha1_top(parent, commit, ""); |
b11645be LT |
472 | } |
473 | line[40] = 0; | |
474 | return diff_tree_commit(commit, line); | |
e0965d83 LT |
475 | } |
476 | ||
5aad72f2 | 477 | static char *diff_tree_usage = |
52e95789 | 478 | "git-diff-tree [-p] [-r] [-z] [--stdin] [-M] [-C] [-R] [-S<string>] [-m] [-s] [-v] <tree-ish> <tree-ish>"; |
c5bac17a | 479 | |
6b14d7fa | 480 | int main(int argc, const char **argv) |
73134b6d | 481 | { |
0a8365a1 | 482 | int nr_sha1; |
e0965d83 | 483 | char line[1000]; |
0a8365a1 | 484 | unsigned char sha1[2][20]; |
73134b6d | 485 | |
0a8365a1 | 486 | nr_sha1 = 0; |
c5b42386 | 487 | for (;;) { |
6b14d7fa | 488 | const char *arg; |
c5b42386 | 489 | |
e0965d83 LT |
490 | argv++; |
491 | argc--; | |
492 | arg = *argv; | |
0a8365a1 | 493 | if (!arg) |
c5b42386 LT |
494 | break; |
495 | ||
0a8365a1 LT |
496 | if (*arg != '-') { |
497 | if (nr_sha1 < 2 && !get_sha1(arg, sha1[nr_sha1])) { | |
498 | nr_sha1++; | |
499 | continue; | |
500 | } | |
501 | break; | |
502 | } | |
503 | ||
504 | if (!strcmp(arg, "--")) { | |
e0965d83 LT |
505 | argv++; |
506 | argc--; | |
507 | break; | |
508 | } | |
bf16c71e | 509 | if (!strcmp(arg, "-r")) { |
73134b6d LT |
510 | recursive = 1; |
511 | continue; | |
512 | } | |
de809dbb LT |
513 | if (!strcmp(arg, "-R")) { |
514 | reverse_diff = 1; | |
515 | continue; | |
516 | } | |
3ebfd4aa | 517 | if (!strcmp(arg, "-p")) { |
81e50eab JH |
518 | diff_output_format = DIFF_FORMAT_PATCH; |
519 | recursive = 1; | |
3ebfd4aa JH |
520 | continue; |
521 | } | |
52e95789 JH |
522 | if (!strncmp(arg, "-S", 2)) { |
523 | pickaxe = arg + 2; | |
524 | continue; | |
525 | } | |
57fe64a4 | 526 | if (!strncmp(arg, "-M", 2)) { |
6b14d7fa | 527 | detect_rename = DIFF_DETECT_RENAME; |
57fe64a4 | 528 | diff_score_opt = diff_scoreopt_parse(arg); |
427dcb4b JH |
529 | continue; |
530 | } | |
531 | if (!strncmp(arg, "-C", 2)) { | |
6b14d7fa | 532 | detect_rename = DIFF_DETECT_COPY; |
427dcb4b | 533 | diff_score_opt = diff_scoreopt_parse(arg); |
5c97558c JH |
534 | continue; |
535 | } | |
6cbd72f8 | 536 | if (!strcmp(arg, "-z")) { |
81e50eab | 537 | diff_output_format = DIFF_FORMAT_MACHINE; |
6cbd72f8 LT |
538 | continue; |
539 | } | |
e0965d83 LT |
540 | if (!strcmp(arg, "-m")) { |
541 | ignore_merges = 0; | |
542 | continue; | |
543 | } | |
f4f21ce3 LT |
544 | if (!strcmp(arg, "-s")) { |
545 | silent = 1; | |
546 | continue; | |
547 | } | |
cee99d22 LT |
548 | if (!strcmp(arg, "-v")) { |
549 | verbose_header = 1; | |
550 | header_prefix = "diff-tree "; | |
551 | continue; | |
552 | } | |
e0965d83 LT |
553 | if (!strcmp(arg, "--stdin")) { |
554 | read_stdin = 1; | |
555 | continue; | |
556 | } | |
dc26bd89 LT |
557 | if (!strcmp(arg, "--root")) { |
558 | show_root_diff = 1; | |
559 | continue; | |
560 | } | |
c5bac17a | 561 | usage(diff_tree_usage); |
73134b6d LT |
562 | } |
563 | ||
e0965d83 | 564 | if (argc > 0) { |
c5b42386 LT |
565 | int i; |
566 | ||
e0965d83 LT |
567 | paths = argv; |
568 | nr_paths = argc; | |
812666c8 | 569 | pathlens = xmalloc(nr_paths * sizeof(int)); |
c5b42386 LT |
570 | for (i=0; i<nr_paths; i++) |
571 | pathlens[i] = strlen(paths[i]); | |
572 | } | |
573 | ||
0a8365a1 LT |
574 | switch (nr_sha1) { |
575 | case 0: | |
576 | if (!read_stdin) | |
577 | usage(diff_tree_usage); | |
578 | break; | |
579 | case 1: | |
73848892 | 580 | diff_tree_commit(sha1[0], NULL); |
0a8365a1 LT |
581 | break; |
582 | case 2: | |
5c97558c | 583 | diff_tree_sha1_top(sha1[0], sha1[1], ""); |
0a8365a1 LT |
584 | break; |
585 | } | |
586 | ||
e0965d83 | 587 | if (!read_stdin) |
0a8365a1 | 588 | return 0; |
e0965d83 LT |
589 | |
590 | while (fgets(line, sizeof(line), stdin)) | |
591 | diff_tree_stdin(line); | |
592 | ||
593 | return 0; | |
9174026c | 594 | } |