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Commit | Line | Data |
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ceab4e26 BS |
1 | /* |
2 | * Copyright (C) the libgit2 contributors. All rights reserved. | |
3 | * | |
4 | * This file is part of libgit2, distributed under the GNU GPL v2 with | |
5 | * a Linking Exception. For full terms see the included COPYING file. | |
6 | */ | |
7 | ||
8 | #include "blame.h" | |
eae0bfdc | 9 | |
ceab4e26 BS |
10 | #include "git2/commit.h" |
11 | #include "git2/revparse.h" | |
12 | #include "git2/revwalk.h" | |
13 | #include "git2/tree.h" | |
14 | #include "git2/diff.h" | |
15 | #include "git2/blob.h" | |
c1ca2b67 | 16 | #include "git2/signature.h" |
ac3d33df | 17 | #include "git2/mailmap.h" |
ceab4e26 BS |
18 | #include "util.h" |
19 | #include "repository.h" | |
20 | #include "blame_git.h" | |
21 | ||
22 | ||
f0c9d8ba | 23 | static int hunk_byfinalline_search_cmp(const void *key, const void *entry) |
ceab4e26 | 24 | { |
f0c9d8ba BS |
25 | git_blame_hunk *hunk = (git_blame_hunk*)entry; |
26 | ||
79aa0302 | 27 | size_t lineno = *(size_t*)key; |
cb1cb24c PS |
28 | size_t lines_in_hunk = hunk->lines_in_hunk; |
29 | size_t final_start_line_number = hunk->final_start_line_number; | |
79aa0302 JP |
30 | |
31 | if (lineno < final_start_line_number) | |
ceab4e26 | 32 | return -1; |
79aa0302 | 33 | if (lineno >= final_start_line_number + lines_in_hunk) |
ceab4e26 BS |
34 | return 1; |
35 | return 0; | |
36 | } | |
f0c9d8ba BS |
37 | |
38 | static int paths_cmp(const void *a, const void *b) { return git__strcmp((char*)a, (char*)b); } | |
39 | static int hunk_cmp(const void *_a, const void *_b) | |
ceab4e26 BS |
40 | { |
41 | git_blame_hunk *a = (git_blame_hunk*)_a, | |
42 | *b = (git_blame_hunk*)_b; | |
43 | ||
ac3d33df JK |
44 | if (a->final_start_line_number > b->final_start_line_number) |
45 | return 1; | |
46 | else if (a->final_start_line_number < b->final_start_line_number) | |
47 | return -1; | |
48 | else | |
49 | return 0; | |
ceab4e26 BS |
50 | } |
51 | ||
52 | static bool hunk_ends_at_or_before_line(git_blame_hunk *hunk, size_t line) | |
53 | { | |
cb1cb24c | 54 | return line >= (hunk->final_start_line_number + hunk->lines_in_hunk - 1); |
ceab4e26 BS |
55 | } |
56 | ||
57 | static bool hunk_starts_at_or_after_line(git_blame_hunk *hunk, size_t line) | |
58 | { | |
59 | return line <= hunk->final_start_line_number; | |
60 | } | |
61 | ||
f0c9d8ba | 62 | static git_blame_hunk* new_hunk( |
cb1cb24c PS |
63 | size_t start, |
64 | size_t lines, | |
65 | size_t orig_start, | |
f0c9d8ba | 66 | const char *path) |
ceab4e26 BS |
67 | { |
68 | git_blame_hunk *hunk = git__calloc(1, sizeof(git_blame_hunk)); | |
69 | if (!hunk) return NULL; | |
70 | ||
71 | hunk->lines_in_hunk = lines; | |
72 | hunk->final_start_line_number = start; | |
73 | hunk->orig_start_line_number = orig_start; | |
74 | hunk->orig_path = path ? git__strdup(path) : NULL; | |
75 | ||
76 | return hunk; | |
77 | } | |
78 | ||
ceab4e26 BS |
79 | static git_blame_hunk* dup_hunk(git_blame_hunk *hunk) |
80 | { | |
f0c9d8ba BS |
81 | git_blame_hunk *newhunk = new_hunk( |
82 | hunk->final_start_line_number, | |
83 | hunk->lines_in_hunk, | |
84 | hunk->orig_start_line_number, | |
85 | hunk->orig_path); | |
392702ee ET |
86 | |
87 | if (!newhunk) | |
88 | return NULL; | |
89 | ||
ceab4e26 BS |
90 | git_oid_cpy(&newhunk->orig_commit_id, &hunk->orig_commit_id); |
91 | git_oid_cpy(&newhunk->final_commit_id, &hunk->final_commit_id); | |
089297b2 | 92 | newhunk->boundary = hunk->boundary; |
29be3a6d AS |
93 | git_signature_dup(&newhunk->final_signature, hunk->final_signature); |
94 | git_signature_dup(&newhunk->orig_signature, hunk->orig_signature); | |
ceab4e26 BS |
95 | return newhunk; |
96 | } | |
97 | ||
98 | static void free_hunk(git_blame_hunk *hunk) | |
99 | { | |
100 | git__free((void*)hunk->orig_path); | |
c1ca2b67 BS |
101 | git_signature_free(hunk->final_signature); |
102 | git_signature_free(hunk->orig_signature); | |
ceab4e26 BS |
103 | git__free(hunk); |
104 | } | |
105 | ||
106 | /* Starting with the hunk that includes start_line, shift all following hunks' | |
107 | * final_start_line by shift_by lines */ | |
f0c9d8ba | 108 | static void shift_hunks_by(git_vector *v, size_t start_line, int shift_by) |
ceab4e26 BS |
109 | { |
110 | size_t i; | |
111 | ||
79aa0302 | 112 | if (!git_vector_bsearch2(&i, v, hunk_byfinalline_search_cmp, &start_line)) { |
ceab4e26 BS |
113 | for (; i < v->length; i++) { |
114 | git_blame_hunk *hunk = (git_blame_hunk*)v->contents[i]; | |
115 | hunk->final_start_line_number += shift_by; | |
116 | } | |
117 | } | |
118 | } | |
f0c9d8ba | 119 | |
ceab4e26 BS |
120 | git_blame* git_blame__alloc( |
121 | git_repository *repo, | |
122 | git_blame_options opts, | |
123 | const char *path) | |
124 | { | |
96869a4e RB |
125 | git_blame *gbr = git__calloc(1, sizeof(git_blame)); |
126 | if (!gbr) | |
ceab4e26 | 127 | return NULL; |
96869a4e | 128 | |
ceab4e26 BS |
129 | gbr->repository = repo; |
130 | gbr->options = opts; | |
96869a4e RB |
131 | |
132 | if (git_vector_init(&gbr->hunks, 8, hunk_cmp) < 0 || | |
133 | git_vector_init(&gbr->paths, 8, paths_cmp) < 0 || | |
134 | (gbr->path = git__strdup(path)) == NULL || | |
135 | git_vector_insert(&gbr->paths, git__strdup(path)) < 0) | |
136 | { | |
137 | git_blame_free(gbr); | |
96869a4e RB |
138 | return NULL; |
139 | } | |
140 | ||
ac3d33df JK |
141 | if (opts.flags & GIT_BLAME_USE_MAILMAP && |
142 | git_mailmap_from_repository(&gbr->mailmap, repo) < 0) { | |
143 | git_blame_free(gbr); | |
144 | return NULL; | |
145 | } | |
146 | ||
ceab4e26 BS |
147 | return gbr; |
148 | } | |
149 | ||
150 | void git_blame_free(git_blame *blame) | |
151 | { | |
152 | size_t i; | |
153 | git_blame_hunk *hunk; | |
ceab4e26 BS |
154 | |
155 | if (!blame) return; | |
156 | ||
157 | git_vector_foreach(&blame->hunks, i, hunk) | |
158 | free_hunk(hunk); | |
159 | git_vector_free(&blame->hunks); | |
160 | ||
9cfce273 | 161 | git_vector_free_deep(&blame->paths); |
ceab4e26 | 162 | |
f0c9d8ba BS |
163 | git_array_clear(blame->line_index); |
164 | ||
ac3d33df JK |
165 | git_mailmap_free(blame->mailmap); |
166 | ||
96869a4e | 167 | git__free(blame->path); |
ceab4e26 BS |
168 | git_blob_free(blame->final_blob); |
169 | git__free(blame); | |
170 | } | |
171 | ||
172 | uint32_t git_blame_get_hunk_count(git_blame *blame) | |
173 | { | |
174 | assert(blame); | |
aad5403f | 175 | return (uint32_t)blame->hunks.length; |
ceab4e26 BS |
176 | } |
177 | ||
178 | const git_blame_hunk *git_blame_get_hunk_byindex(git_blame *blame, uint32_t index) | |
179 | { | |
180 | assert(blame); | |
181 | return (git_blame_hunk*)git_vector_get(&blame->hunks, index); | |
182 | } | |
183 | ||
cb1cb24c | 184 | const git_blame_hunk *git_blame_get_hunk_byline(git_blame *blame, size_t lineno) |
ceab4e26 | 185 | { |
cb1cb24c | 186 | size_t i, new_lineno = lineno; |
ceab4e26 BS |
187 | assert(blame); |
188 | ||
79aa0302 | 189 | if (!git_vector_bsearch2(&i, &blame->hunks, hunk_byfinalline_search_cmp, &new_lineno)) { |
aad5403f | 190 | return git_blame_get_hunk_byindex(blame, (uint32_t)i); |
ceab4e26 BS |
191 | } |
192 | ||
193 | return NULL; | |
194 | } | |
195 | ||
f17ed637 | 196 | static int normalize_options( |
ceab4e26 BS |
197 | git_blame_options *out, |
198 | const git_blame_options *in, | |
199 | git_repository *repo) | |
200 | { | |
201 | git_blame_options dummy = GIT_BLAME_OPTIONS_INIT; | |
202 | if (!in) in = &dummy; | |
203 | ||
204 | memcpy(out, in, sizeof(git_blame_options)); | |
205 | ||
206 | /* No newest_commit => HEAD */ | |
22a2d3d5 | 207 | if (git_oid_is_zero(&out->newest_commit)) { |
f17ed637 PS |
208 | if (git_reference_name_to_id(&out->newest_commit, repo, "HEAD") < 0) { |
209 | return -1; | |
210 | } | |
ceab4e26 | 211 | } |
d1228f1c BS |
212 | |
213 | /* min_line 0 really means 1 */ | |
214 | if (!out->min_line) out->min_line = 1; | |
215 | /* max_line 0 really means N, but we don't know N yet */ | |
364d800b BS |
216 | |
217 | /* Fix up option implications */ | |
218 | if (out->flags & GIT_BLAME_TRACK_COPIES_ANY_COMMIT_COPIES) | |
219 | out->flags |= GIT_BLAME_TRACK_COPIES_SAME_COMMIT_COPIES; | |
220 | if (out->flags & GIT_BLAME_TRACK_COPIES_SAME_COMMIT_COPIES) | |
221 | out->flags |= GIT_BLAME_TRACK_COPIES_SAME_COMMIT_MOVES; | |
222 | if (out->flags & GIT_BLAME_TRACK_COPIES_SAME_COMMIT_MOVES) | |
223 | out->flags |= GIT_BLAME_TRACK_COPIES_SAME_FILE; | |
f17ed637 PS |
224 | |
225 | return 0; | |
ceab4e26 BS |
226 | } |
227 | ||
228 | static git_blame_hunk *split_hunk_in_vector( | |
229 | git_vector *vec, | |
230 | git_blame_hunk *hunk, | |
231 | size_t rel_line, | |
232 | bool return_new) | |
233 | { | |
234 | size_t new_line_count; | |
235 | git_blame_hunk *nh; | |
236 | ||
237 | /* Don't split if already at a boundary */ | |
238 | if (rel_line <= 0 || | |
239 | rel_line >= hunk->lines_in_hunk) | |
240 | { | |
241 | return hunk; | |
242 | } | |
243 | ||
244 | new_line_count = hunk->lines_in_hunk - rel_line; | |
cb1cb24c PS |
245 | nh = new_hunk(hunk->final_start_line_number + rel_line, new_line_count, |
246 | hunk->orig_start_line_number + rel_line, hunk->orig_path); | |
392702ee ET |
247 | |
248 | if (!nh) | |
249 | return NULL; | |
250 | ||
ceab4e26 BS |
251 | git_oid_cpy(&nh->final_commit_id, &hunk->final_commit_id); |
252 | git_oid_cpy(&nh->orig_commit_id, &hunk->orig_commit_id); | |
253 | ||
254 | /* Adjust hunk that was split */ | |
cb1cb24c | 255 | hunk->lines_in_hunk -= new_line_count; |
ceab4e26 BS |
256 | git_vector_insert_sorted(vec, nh, NULL); |
257 | { | |
258 | git_blame_hunk *ret = return_new ? nh : hunk; | |
259 | return ret; | |
260 | } | |
261 | } | |
262 | ||
ceab4e26 | 263 | /* |
f0c9d8ba BS |
264 | * Construct a list of char indices for where lines begin |
265 | * Adapted from core git: | |
266 | * https://github.com/gitster/git/blob/be5c9fb9049ed470e7005f159bb923a5f4de1309/builtin/blame.c#L1760-L1789 | |
ceab4e26 | 267 | */ |
f0c9d8ba | 268 | static int index_blob_lines(git_blame *blame) |
ceab4e26 | 269 | { |
f0c9d8ba | 270 | const char *buf = blame->final_buf; |
22a2d3d5 | 271 | size_t len = blame->final_buf_size; |
f0c9d8ba BS |
272 | int num = 0, incomplete = 0, bol = 1; |
273 | size_t *i; | |
a06474f8 | 274 | |
f0c9d8ba BS |
275 | if (len && buf[len-1] != '\n') |
276 | incomplete++; /* incomplete line at the end */ | |
277 | while (len--) { | |
278 | if (bol) { | |
279 | i = git_array_alloc(blame->line_index); | |
ac3d33df | 280 | GIT_ERROR_CHECK_ALLOC(i); |
f0c9d8ba BS |
281 | *i = buf - blame->final_buf; |
282 | bol = 0; | |
283 | } | |
284 | if (*buf++ == '\n') { | |
285 | num++; | |
286 | bol = 1; | |
287 | } | |
288 | } | |
289 | i = git_array_alloc(blame->line_index); | |
ac3d33df | 290 | GIT_ERROR_CHECK_ALLOC(i); |
f0c9d8ba BS |
291 | *i = buf - blame->final_buf; |
292 | blame->num_lines = num + incomplete; | |
293 | return blame->num_lines; | |
ceab4e26 | 294 | } |
a06474f8 | 295 | |
ac3d33df | 296 | static git_blame_hunk* hunk_from_entry(git_blame__entry *e, git_blame *blame) |
ceab4e26 BS |
297 | { |
298 | git_blame_hunk *h = new_hunk( | |
299 | e->lno+1, e->num_lines, e->s_lno+1, e->suspect->path); | |
392702ee ET |
300 | |
301 | if (!h) | |
302 | return NULL; | |
303 | ||
ceab4e26 | 304 | git_oid_cpy(&h->final_commit_id, git_commit_id(e->suspect->commit)); |
a06474f8 | 305 | git_oid_cpy(&h->orig_commit_id, git_commit_id(e->suspect->commit)); |
ac3d33df JK |
306 | git_commit_author_with_mailmap( |
307 | &h->final_signature, e->suspect->commit, blame->mailmap); | |
308 | git_signature_dup(&h->orig_signature, h->final_signature); | |
25c47aae | 309 | h->boundary = e->is_boundary ? 1 : 0; |
ceab4e26 BS |
310 | return h; |
311 | } | |
312 | ||
77db6ff5 BS |
313 | static int load_blob(git_blame *blame) |
314 | { | |
315 | int error; | |
316 | ||
b6f60a4d BS |
317 | if (blame->final_blob) return 0; |
318 | ||
77db6ff5 BS |
319 | error = git_commit_lookup(&blame->final, blame->repository, &blame->options.newest_commit); |
320 | if (error < 0) | |
321 | goto cleanup; | |
322 | error = git_object_lookup_bypath((git_object**)&blame->final_blob, | |
ac3d33df | 323 | (git_object*)blame->final, blame->path, GIT_OBJECT_BLOB); |
77db6ff5 BS |
324 | |
325 | cleanup: | |
326 | return error; | |
327 | } | |
328 | ||
f0c9d8ba | 329 | static int blame_internal(git_blame *blame) |
ceab4e26 BS |
330 | { |
331 | int error; | |
a121e580 | 332 | git_blame__entry *ent = NULL; |
a121e580 | 333 | git_blame__origin *o; |
ceab4e26 | 334 | |
b6f60a4d BS |
335 | if ((error = load_blob(blame)) < 0 || |
336 | (error = git_blame__get_origin(&o, blame, blame->final, blame->path)) < 0) | |
ceab4e26 | 337 | goto cleanup; |
22a2d3d5 UG |
338 | |
339 | if (git_blob_rawsize(blame->final_blob) > SIZE_MAX) { | |
340 | git_error_set(GIT_ERROR_NOMEMORY, "blob is too large to blame"); | |
341 | error = -1; | |
342 | goto cleanup; | |
343 | } | |
344 | ||
b6f60a4d | 345 | blame->final_buf = git_blob_rawcontent(blame->final_blob); |
22a2d3d5 | 346 | blame->final_buf_size = (size_t)git_blob_rawsize(blame->final_blob); |
ceab4e26 | 347 | |
f0c9d8ba | 348 | ent = git__calloc(1, sizeof(git_blame__entry)); |
ac3d33df | 349 | GIT_ERROR_CHECK_ALLOC(ent); |
392702ee | 350 | |
f0c9d8ba | 351 | ent->num_lines = index_blob_lines(blame); |
d1228f1c BS |
352 | ent->lno = blame->options.min_line - 1; |
353 | ent->num_lines = ent->num_lines - blame->options.min_line + 1; | |
f0c9d8ba | 354 | if (blame->options.max_line > 0) |
d1228f1c | 355 | ent->num_lines = blame->options.max_line - blame->options.min_line + 1; |
d1228f1c | 356 | ent->s_lno = ent->lno; |
ceab4e26 | 357 | ent->suspect = o; |
d1228f1c | 358 | |
0a0f0558 | 359 | blame->ent = ent; |
ceab4e26 | 360 | |
ae195a71 | 361 | error = git_blame__like_git(blame, blame->options.flags); |
ceab4e26 | 362 | |
ceab4e26 | 363 | cleanup: |
0a0f0558 | 364 | for (ent = blame->ent; ent; ) { |
a121e580 | 365 | git_blame__entry *e = ent->next; |
ac3d33df | 366 | git_blame_hunk *h = hunk_from_entry(ent, blame); |
ceab4e26 | 367 | |
392702ee | 368 | git_vector_insert(&blame->hunks, h); |
ceab4e26 | 369 | |
b6f60a4d | 370 | git_blame__free_entry(ent); |
ceab4e26 BS |
371 | ent = e; |
372 | } | |
373 | ||
ceab4e26 BS |
374 | return error; |
375 | } | |
376 | ||
f0c9d8ba BS |
377 | /******************************************************************************* |
378 | * File blaming | |
379 | ******************************************************************************/ | |
380 | ||
ceab4e26 BS |
381 | int git_blame_file( |
382 | git_blame **out, | |
383 | git_repository *repo, | |
384 | const char *path, | |
385 | git_blame_options *options) | |
386 | { | |
387 | int error = -1; | |
388 | git_blame_options normOptions = GIT_BLAME_OPTIONS_INIT; | |
389 | git_blame *blame = NULL; | |
390 | ||
391 | assert(out && repo && path); | |
f17ed637 PS |
392 | if ((error = normalize_options(&normOptions, options, repo)) < 0) |
393 | goto on_error; | |
ceab4e26 BS |
394 | |
395 | blame = git_blame__alloc(repo, normOptions, path); | |
ac3d33df | 396 | GIT_ERROR_CHECK_ALLOC(blame); |
ceab4e26 | 397 | |
77db6ff5 | 398 | if ((error = load_blob(blame)) < 0) |
ceab4e26 BS |
399 | goto on_error; |
400 | ||
f0c9d8ba | 401 | if ((error = blame_internal(blame)) < 0) |
ceab4e26 BS |
402 | goto on_error; |
403 | ||
404 | *out = blame; | |
405 | return 0; | |
406 | ||
407 | on_error: | |
408 | git_blame_free(blame); | |
409 | return error; | |
410 | } | |
411 | ||
412 | /******************************************************************************* | |
413 | * Buffer blaming | |
414 | *******************************************************************************/ | |
415 | ||
416 | static bool hunk_is_bufferblame(git_blame_hunk *hunk) | |
417 | { | |
22a2d3d5 | 418 | return hunk && git_oid_is_zero(&hunk->final_commit_id); |
ceab4e26 BS |
419 | } |
420 | ||
421 | static int buffer_hunk_cb( | |
422 | const git_diff_delta *delta, | |
7dcb1c45 | 423 | const git_diff_hunk *hunk, |
ceab4e26 BS |
424 | void *payload) |
425 | { | |
426 | git_blame *blame = (git_blame*)payload; | |
aad5403f | 427 | uint32_t wedge_line; |
ceab4e26 BS |
428 | |
429 | GIT_UNUSED(delta); | |
ceab4e26 | 430 | |
7dcb1c45 | 431 | wedge_line = (hunk->old_lines == 0) ? hunk->new_start : hunk->old_start; |
ceab4e26 BS |
432 | blame->current_diff_line = wedge_line; |
433 | ||
ceab4e26 | 434 | blame->current_hunk = (git_blame_hunk*)git_blame_get_hunk_byline(blame, wedge_line); |
9db56cc4 BS |
435 | if (!blame->current_hunk) { |
436 | /* Line added at the end of the file */ | |
437 | blame->current_hunk = new_hunk(wedge_line, 0, wedge_line, blame->path); | |
ac3d33df | 438 | GIT_ERROR_CHECK_ALLOC(blame->current_hunk); |
392702ee | 439 | |
9db56cc4 BS |
440 | git_vector_insert(&blame->hunks, blame->current_hunk); |
441 | } else if (!hunk_starts_at_or_after_line(blame->current_hunk, wedge_line)){ | |
442 | /* If this hunk doesn't start between existing hunks, split a hunk up so it does */ | |
ceab4e26 BS |
443 | blame->current_hunk = split_hunk_in_vector(&blame->hunks, blame->current_hunk, |
444 | wedge_line - blame->current_hunk->orig_start_line_number, true); | |
ac3d33df | 445 | GIT_ERROR_CHECK_ALLOC(blame->current_hunk); |
ceab4e26 BS |
446 | } |
447 | ||
448 | return 0; | |
449 | } | |
450 | ||
451 | static int ptrs_equal_cmp(const void *a, const void *b) { return a<b ? -1 : a>b ? 1 : 0; } | |
452 | static int buffer_line_cb( | |
453 | const git_diff_delta *delta, | |
7dcb1c45 BS |
454 | const git_diff_hunk *hunk, |
455 | const git_diff_line *line, | |
ceab4e26 BS |
456 | void *payload) |
457 | { | |
458 | git_blame *blame = (git_blame*)payload; | |
459 | ||
460 | GIT_UNUSED(delta); | |
7dcb1c45 BS |
461 | GIT_UNUSED(hunk); |
462 | GIT_UNUSED(line); | |
ceab4e26 | 463 | |
7dcb1c45 | 464 | if (line->origin == GIT_DIFF_LINE_ADDITION) { |
ceab4e26 BS |
465 | if (hunk_is_bufferblame(blame->current_hunk) && |
466 | hunk_ends_at_or_before_line(blame->current_hunk, blame->current_diff_line)) { | |
467 | /* Append to the current buffer-blame hunk */ | |
468 | blame->current_hunk->lines_in_hunk++; | |
f0c9d8ba | 469 | shift_hunks_by(&blame->hunks, blame->current_diff_line+1, 1); |
ceab4e26 BS |
470 | } else { |
471 | /* Create a new buffer-blame hunk with this line */ | |
f0c9d8ba | 472 | shift_hunks_by(&blame->hunks, blame->current_diff_line, 1); |
cb1cb24c | 473 | blame->current_hunk = new_hunk(blame->current_diff_line, 1, 0, blame->path); |
ac3d33df | 474 | GIT_ERROR_CHECK_ALLOC(blame->current_hunk); |
392702ee | 475 | |
ceab4e26 BS |
476 | git_vector_insert_sorted(&blame->hunks, blame->current_hunk, NULL); |
477 | } | |
478 | blame->current_diff_line++; | |
479 | } | |
480 | ||
7dcb1c45 | 481 | if (line->origin == GIT_DIFF_LINE_DELETION) { |
ceab4e26 BS |
482 | /* Trim the line from the current hunk; remove it if it's now empty */ |
483 | size_t shift_base = blame->current_diff_line + blame->current_hunk->lines_in_hunk+1; | |
484 | ||
485 | if (--(blame->current_hunk->lines_in_hunk) == 0) { | |
486 | size_t i; | |
487 | shift_base--; | |
488 | if (!git_vector_search2(&i, &blame->hunks, ptrs_equal_cmp, blame->current_hunk)) { | |
489 | git_vector_remove(&blame->hunks, i); | |
490 | free_hunk(blame->current_hunk); | |
aad5403f | 491 | blame->current_hunk = (git_blame_hunk*)git_blame_get_hunk_byindex(blame, (uint32_t)i); |
ceab4e26 BS |
492 | } |
493 | } | |
f0c9d8ba | 494 | shift_hunks_by(&blame->hunks, shift_base, -1); |
ceab4e26 BS |
495 | } |
496 | return 0; | |
497 | } | |
498 | ||
499 | int git_blame_buffer( | |
500 | git_blame **out, | |
501 | git_blame *reference, | |
502 | const char *buffer, | |
e9d5e5f3 | 503 | size_t buffer_len) |
ceab4e26 BS |
504 | { |
505 | git_blame *blame; | |
506 | git_diff_options diffopts = GIT_DIFF_OPTIONS_INIT; | |
507 | size_t i; | |
508 | git_blame_hunk *hunk; | |
509 | ||
510 | diffopts.context_lines = 0; | |
511 | ||
512 | assert(out && reference && buffer && buffer_len); | |
513 | ||
514 | blame = git_blame__alloc(reference->repository, reference->options, reference->path); | |
ac3d33df | 515 | GIT_ERROR_CHECK_ALLOC(blame); |
ceab4e26 BS |
516 | |
517 | /* Duplicate all of the hunk structures in the reference blame */ | |
518 | git_vector_foreach(&reference->hunks, i, hunk) { | |
392702ee | 519 | git_blame_hunk *h = dup_hunk(hunk); |
ac3d33df | 520 | GIT_ERROR_CHECK_ALLOC(h); |
392702ee ET |
521 | |
522 | git_vector_insert(&blame->hunks, h); | |
ceab4e26 BS |
523 | } |
524 | ||
525 | /* Diff to the reference blob */ | |
526 | git_diff_blob_to_buffer(reference->final_blob, blame->path, | |
8147b1af ET |
527 | buffer, buffer_len, blame->path, &diffopts, |
528 | NULL, NULL, buffer_hunk_cb, buffer_line_cb, blame); | |
ceab4e26 BS |
529 | |
530 | *out = blame; | |
531 | return 0; | |
532 | } | |
b9f81997 | 533 | |
22a2d3d5 | 534 | int git_blame_options_init(git_blame_options *opts, unsigned int version) |
b9f81997 | 535 | { |
702efc89 RB |
536 | GIT_INIT_STRUCTURE_FROM_TEMPLATE( |
537 | opts, version, git_blame_options, GIT_BLAME_OPTIONS_INIT); | |
538 | return 0; | |
b9f81997 | 539 | } |
22a2d3d5 UG |
540 | |
541 | #ifndef GIT_DEPRECATE_HARD | |
542 | int git_blame_init_options(git_blame_options *opts, unsigned int version) | |
543 | { | |
544 | return git_blame_options_init(opts, version); | |
545 | } | |
546 | #endif |