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Commit | Line | Data |
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6c510bee | 1 | #include "cache.h" |
35ebfd6a | 2 | #include "attr.h" |
3fed15f5 | 3 | #include "run-command.h" |
35ebfd6a | 4 | |
6c510bee LT |
5 | /* |
6 | * convert.c - convert a file when checking it out and checking it in. | |
7 | * | |
8 | * This should use the pathname to decide on whether it wants to do some | |
9 | * more interesting conversions (automatic gzip/unzip, general format | |
10 | * conversions etc etc), but by default it just does automatic CRLF<->LF | |
11 | * translation when the "auto_crlf" option is set. | |
12 | */ | |
13 | ||
163b9591 JH |
14 | #define CRLF_GUESS (-1) |
15 | #define CRLF_BINARY 0 | |
16 | #define CRLF_TEXT 1 | |
17 | #define CRLF_INPUT 2 | |
18 | ||
6c510bee LT |
19 | struct text_stat { |
20 | /* CR, LF and CRLF counts */ | |
21 | unsigned cr, lf, crlf; | |
22 | ||
23 | /* These are just approximations! */ | |
24 | unsigned printable, nonprintable; | |
25 | }; | |
26 | ||
27 | static void gather_stats(const char *buf, unsigned long size, struct text_stat *stats) | |
28 | { | |
29 | unsigned long i; | |
30 | ||
31 | memset(stats, 0, sizeof(*stats)); | |
32 | ||
33 | for (i = 0; i < size; i++) { | |
34 | unsigned char c = buf[i]; | |
35 | if (c == '\r') { | |
36 | stats->cr++; | |
37 | if (i+1 < size && buf[i+1] == '\n') | |
38 | stats->crlf++; | |
39 | continue; | |
40 | } | |
41 | if (c == '\n') { | |
42 | stats->lf++; | |
43 | continue; | |
44 | } | |
45 | if (c == 127) | |
46 | /* DEL */ | |
47 | stats->nonprintable++; | |
48 | else if (c < 32) { | |
49 | switch (c) { | |
50 | /* BS, HT, ESC and FF */ | |
51 | case '\b': case '\t': case '\033': case '\014': | |
52 | stats->printable++; | |
53 | break; | |
54 | default: | |
55 | stats->nonprintable++; | |
56 | } | |
57 | } | |
58 | else | |
59 | stats->printable++; | |
60 | } | |
61 | } | |
62 | ||
63 | /* | |
64 | * The same heuristics as diff.c::mmfile_is_binary() | |
65 | */ | |
66 | static int is_binary(unsigned long size, struct text_stat *stats) | |
67 | { | |
68 | ||
69 | if ((stats->printable >> 7) < stats->nonprintable) | |
70 | return 1; | |
71 | /* | |
72 | * Other heuristics? Average line length might be relevant, | |
73 | * as might LF vs CR vs CRLF counts.. | |
74 | * | |
75 | * NOTE! It might be normal to have a low ratio of CRLF to LF | |
76 | * (somebody starts with a LF-only file and edits it with an editor | |
77 | * that adds CRLF only to lines that are added..). But do we | |
78 | * want to support CR-only? Probably not. | |
79 | */ | |
80 | return 0; | |
81 | } | |
82 | ||
5ecd293d PH |
83 | static int crlf_to_git(const char *path, const char *src, size_t len, |
84 | struct strbuf *buf, int action) | |
6c510bee | 85 | { |
6c510bee | 86 | struct text_stat stats; |
5ecd293d | 87 | char *dst; |
6c510bee | 88 | |
5ecd293d PH |
89 | if ((action == CRLF_BINARY) || !auto_crlf || !len) |
90 | return 0; | |
6c510bee | 91 | |
5ecd293d | 92 | gather_stats(src, len, &stats); |
6c510bee LT |
93 | /* No CR? Nothing to convert, regardless. */ |
94 | if (!stats.cr) | |
5ecd293d | 95 | return 0; |
6c510bee | 96 | |
163b9591 | 97 | if (action == CRLF_GUESS) { |
201ac8ef JH |
98 | /* |
99 | * We're currently not going to even try to convert stuff | |
100 | * that has bare CR characters. Does anybody do that crazy | |
101 | * stuff? | |
102 | */ | |
103 | if (stats.cr != stats.crlf) | |
5ecd293d | 104 | return 0; |
201ac8ef JH |
105 | |
106 | /* | |
107 | * And add some heuristics for binary vs text, of course... | |
108 | */ | |
5ecd293d PH |
109 | if (is_binary(len, &stats)) |
110 | return 0; | |
201ac8ef | 111 | } |
6c510bee | 112 | |
5ecd293d PH |
113 | strbuf_grow(buf, len); |
114 | dst = buf->buf; | |
163b9591 JH |
115 | if (action == CRLF_GUESS) { |
116 | /* | |
117 | * If we guessed, we already know we rejected a file with | |
118 | * lone CR, and we can strip a CR without looking at what | |
119 | * follow it. | |
120 | */ | |
201ac8ef | 121 | do { |
ac78e548 | 122 | unsigned char c = *src++; |
201ac8ef | 123 | if (c != '\r') |
ac78e548 | 124 | *dst++ = c; |
5ecd293d | 125 | } while (--len); |
201ac8ef JH |
126 | } else { |
127 | do { | |
ac78e548 | 128 | unsigned char c = *src++; |
5ecd293d | 129 | if (! (c == '\r' && (1 < len && *src == '\n'))) |
ac78e548 | 130 | *dst++ = c; |
5ecd293d | 131 | } while (--len); |
201ac8ef | 132 | } |
5ecd293d PH |
133 | strbuf_setlen(buf, dst - buf->buf); |
134 | return 1; | |
6c510bee LT |
135 | } |
136 | ||
5ecd293d PH |
137 | static int crlf_to_worktree(const char *path, const char *src, size_t len, |
138 | struct strbuf *buf, int action) | |
6c510bee | 139 | { |
5ecd293d | 140 | char *to_free = NULL; |
6c510bee | 141 | struct text_stat stats; |
6c510bee | 142 | |
163b9591 | 143 | if ((action == CRLF_BINARY) || (action == CRLF_INPUT) || |
760f0c62 | 144 | auto_crlf <= 0) |
5ecd293d | 145 | return 0; |
6c510bee | 146 | |
5ecd293d PH |
147 | if (!len) |
148 | return 0; | |
6c510bee | 149 | |
5ecd293d | 150 | gather_stats(src, len, &stats); |
6c510bee LT |
151 | |
152 | /* No LF? Nothing to convert, regardless. */ | |
153 | if (!stats.lf) | |
5ecd293d | 154 | return 0; |
6c510bee LT |
155 | |
156 | /* Was it already in CRLF format? */ | |
157 | if (stats.lf == stats.crlf) | |
5ecd293d | 158 | return 0; |
6c510bee | 159 | |
163b9591 | 160 | if (action == CRLF_GUESS) { |
201ac8ef JH |
161 | /* If we have any bare CR characters, we're not going to touch it */ |
162 | if (stats.cr != stats.crlf) | |
5ecd293d | 163 | return 0; |
6c510bee | 164 | |
5ecd293d PH |
165 | if (is_binary(len, &stats)) |
166 | return 0; | |
201ac8ef | 167 | } |
6c510bee | 168 | |
5ecd293d PH |
169 | /* are we "faking" in place editing ? */ |
170 | if (src == buf->buf) | |
171 | to_free = strbuf_detach(buf); | |
172 | ||
173 | strbuf_grow(buf, len + stats.lf - stats.crlf); | |
174 | for (;;) { | |
175 | const char *nl = memchr(src, '\n', len); | |
176 | if (!nl) | |
177 | break; | |
178 | if (nl > src && nl[-1] == '\r') { | |
179 | strbuf_add(buf, src, nl + 1 - src); | |
180 | } else { | |
181 | strbuf_add(buf, src, nl - src); | |
182 | strbuf_addstr(buf, "\r\n"); | |
183 | } | |
184 | len -= nl + 1 - src; | |
185 | src = nl + 1; | |
186 | } | |
187 | strbuf_add(buf, src, len); | |
188 | ||
189 | free(to_free); | |
190 | return 1; | |
6c510bee | 191 | } |
35ebfd6a | 192 | |
aa4ed402 JH |
193 | static int filter_buffer(const char *path, const char *src, |
194 | unsigned long size, const char *cmd) | |
195 | { | |
196 | /* | |
197 | * Spawn cmd and feed the buffer contents through its stdin. | |
198 | */ | |
199 | struct child_process child_process; | |
200 | int pipe_feed[2]; | |
201 | int write_err, status; | |
202 | ||
203 | memset(&child_process, 0, sizeof(child_process)); | |
204 | ||
205 | if (pipe(pipe_feed) < 0) { | |
206 | error("cannot create pipe to run external filter %s", cmd); | |
207 | return 1; | |
208 | } | |
209 | ||
210 | child_process.pid = fork(); | |
211 | if (child_process.pid < 0) { | |
212 | error("cannot fork to run external filter %s", cmd); | |
213 | close(pipe_feed[0]); | |
214 | close(pipe_feed[1]); | |
215 | return 1; | |
216 | } | |
217 | if (!child_process.pid) { | |
218 | dup2(pipe_feed[0], 0); | |
219 | close(pipe_feed[0]); | |
220 | close(pipe_feed[1]); | |
221 | execlp("sh", "sh", "-c", cmd, NULL); | |
222 | return 1; | |
223 | } | |
224 | close(pipe_feed[0]); | |
225 | ||
226 | write_err = (write_in_full(pipe_feed[1], src, size) < 0); | |
227 | if (close(pipe_feed[1])) | |
228 | write_err = 1; | |
229 | if (write_err) | |
230 | error("cannot feed the input to external filter %s", cmd); | |
231 | ||
232 | status = finish_command(&child_process); | |
233 | if (status) | |
234 | error("external filter %s failed %d", cmd, -status); | |
235 | return (write_err || status); | |
236 | } | |
237 | ||
5ecd293d PH |
238 | static int apply_filter(const char *path, const char *src, size_t len, |
239 | struct strbuf *dst, const char *cmd) | |
aa4ed402 JH |
240 | { |
241 | /* | |
242 | * Create a pipeline to have the command filter the buffer's | |
243 | * contents. | |
244 | * | |
245 | * (child --> cmd) --> us | |
246 | */ | |
aa4ed402 | 247 | int pipe_feed[2]; |
5ecd293d | 248 | int status, ret = 1; |
aa4ed402 | 249 | struct child_process child_process; |
5ecd293d | 250 | struct strbuf nbuf; |
aa4ed402 JH |
251 | |
252 | if (!cmd) | |
5ecd293d | 253 | return 0; |
aa4ed402 JH |
254 | |
255 | memset(&child_process, 0, sizeof(child_process)); | |
256 | ||
257 | if (pipe(pipe_feed) < 0) { | |
258 | error("cannot create pipe to run external filter %s", cmd); | |
5ecd293d | 259 | return 0; |
aa4ed402 JH |
260 | } |
261 | ||
262 | fflush(NULL); | |
263 | child_process.pid = fork(); | |
264 | if (child_process.pid < 0) { | |
265 | error("cannot fork to run external filter %s", cmd); | |
266 | close(pipe_feed[0]); | |
267 | close(pipe_feed[1]); | |
5ecd293d | 268 | return 0; |
aa4ed402 JH |
269 | } |
270 | if (!child_process.pid) { | |
271 | dup2(pipe_feed[1], 1); | |
272 | close(pipe_feed[0]); | |
273 | close(pipe_feed[1]); | |
5ecd293d | 274 | exit(filter_buffer(path, src, len, cmd)); |
aa4ed402 JH |
275 | } |
276 | close(pipe_feed[1]); | |
277 | ||
5ecd293d PH |
278 | strbuf_init(&nbuf, 0); |
279 | if (strbuf_read(&nbuf, pipe_feed[0], len) < 0) { | |
280 | error("read from external filter %s failed", cmd); | |
281 | ret = 0; | |
aa4ed402 JH |
282 | } |
283 | if (close(pipe_feed[0])) { | |
5ecd293d PH |
284 | ret = error("read from external filter %s failed", cmd); |
285 | ret = 0; | |
aa4ed402 | 286 | } |
aa4ed402 JH |
287 | status = finish_command(&child_process); |
288 | if (status) { | |
5ecd293d PH |
289 | ret = error("external filter %s failed %d", cmd, -status); |
290 | ret = 0; | |
aa4ed402 JH |
291 | } |
292 | ||
5ecd293d PH |
293 | if (ret) { |
294 | *dst = nbuf; | |
295 | } else { | |
296 | strbuf_release(&nbuf); | |
297 | } | |
298 | return ret; | |
aa4ed402 JH |
299 | } |
300 | ||
301 | static struct convert_driver { | |
302 | const char *name; | |
303 | struct convert_driver *next; | |
304 | char *smudge; | |
305 | char *clean; | |
306 | } *user_convert, **user_convert_tail; | |
307 | ||
308 | static int read_convert_config(const char *var, const char *value) | |
309 | { | |
310 | const char *ep, *name; | |
311 | int namelen; | |
312 | struct convert_driver *drv; | |
313 | ||
314 | /* | |
315 | * External conversion drivers are configured using | |
316 | * "filter.<name>.variable". | |
317 | */ | |
318 | if (prefixcmp(var, "filter.") || (ep = strrchr(var, '.')) == var + 6) | |
319 | return 0; | |
320 | name = var + 7; | |
321 | namelen = ep - name; | |
322 | for (drv = user_convert; drv; drv = drv->next) | |
323 | if (!strncmp(drv->name, name, namelen) && !drv->name[namelen]) | |
324 | break; | |
325 | if (!drv) { | |
326 | char *namebuf; | |
327 | drv = xcalloc(1, sizeof(struct convert_driver)); | |
328 | namebuf = xmalloc(namelen + 1); | |
329 | memcpy(namebuf, name, namelen); | |
330 | namebuf[namelen] = 0; | |
331 | drv->name = namebuf; | |
332 | drv->next = NULL; | |
333 | *user_convert_tail = drv; | |
334 | user_convert_tail = &(drv->next); | |
335 | } | |
336 | ||
337 | ep++; | |
338 | ||
339 | /* | |
340 | * filter.<name>.smudge and filter.<name>.clean specifies | |
341 | * the command line: | |
342 | * | |
343 | * command-line | |
344 | * | |
345 | * The command-line will not be interpolated in any way. | |
346 | */ | |
347 | ||
348 | if (!strcmp("smudge", ep)) { | |
349 | if (!value) | |
350 | return error("%s: lacks value", var); | |
351 | drv->smudge = strdup(value); | |
352 | return 0; | |
353 | } | |
354 | ||
355 | if (!strcmp("clean", ep)) { | |
356 | if (!value) | |
357 | return error("%s: lacks value", var); | |
358 | drv->clean = strdup(value); | |
359 | return 0; | |
360 | } | |
361 | return 0; | |
362 | } | |
363 | ||
6073ee85 | 364 | static void setup_convert_check(struct git_attr_check *check) |
35ebfd6a JH |
365 | { |
366 | static struct git_attr *attr_crlf; | |
3fed15f5 | 367 | static struct git_attr *attr_ident; |
aa4ed402 | 368 | static struct git_attr *attr_filter; |
35ebfd6a | 369 | |
3fed15f5 | 370 | if (!attr_crlf) { |
35ebfd6a | 371 | attr_crlf = git_attr("crlf", 4); |
3fed15f5 | 372 | attr_ident = git_attr("ident", 5); |
aa4ed402 JH |
373 | attr_filter = git_attr("filter", 6); |
374 | user_convert_tail = &user_convert; | |
375 | git_config(read_convert_config); | |
3fed15f5 JH |
376 | } |
377 | check[0].attr = attr_crlf; | |
378 | check[1].attr = attr_ident; | |
aa4ed402 | 379 | check[2].attr = attr_filter; |
3fed15f5 JH |
380 | } |
381 | ||
382 | static int count_ident(const char *cp, unsigned long size) | |
383 | { | |
384 | /* | |
af9b54bb | 385 | * "$Id: 0000000000000000000000000000000000000000 $" <=> "$Id$" |
3fed15f5 JH |
386 | */ |
387 | int cnt = 0; | |
388 | char ch; | |
389 | ||
390 | while (size) { | |
391 | ch = *cp++; | |
392 | size--; | |
393 | if (ch != '$') | |
394 | continue; | |
af9b54bb | 395 | if (size < 3) |
3fed15f5 | 396 | break; |
af9b54bb | 397 | if (memcmp("Id", cp, 2)) |
3fed15f5 | 398 | continue; |
af9b54bb AP |
399 | ch = cp[2]; |
400 | cp += 3; | |
401 | size -= 3; | |
3fed15f5 | 402 | if (ch == '$') |
af9b54bb | 403 | cnt++; /* $Id$ */ |
3fed15f5 JH |
404 | if (ch != ':') |
405 | continue; | |
406 | ||
407 | /* | |
af9b54bb | 408 | * "$Id: ... "; scan up to the closing dollar sign and discard. |
3fed15f5 JH |
409 | */ |
410 | while (size) { | |
411 | ch = *cp++; | |
412 | size--; | |
413 | if (ch == '$') { | |
414 | cnt++; | |
415 | break; | |
416 | } | |
417 | } | |
418 | } | |
419 | return cnt; | |
420 | } | |
421 | ||
5ecd293d PH |
422 | static int ident_to_git(const char *path, const char *src, size_t len, |
423 | struct strbuf *buf, int ident) | |
3fed15f5 | 424 | { |
5ecd293d | 425 | char *dst, *dollar; |
3fed15f5 | 426 | |
5ecd293d PH |
427 | if (!ident || !count_ident(src, len)) |
428 | return 0; | |
429 | ||
430 | strbuf_grow(buf, len); | |
431 | dst = buf->buf; | |
432 | for (;;) { | |
433 | dollar = memchr(src, '$', len); | |
434 | if (!dollar) | |
435 | break; | |
436 | memcpy(dst, src, dollar + 1 - src); | |
437 | dst += dollar + 1 - src; | |
438 | len -= dollar + 1 - src; | |
439 | src = dollar + 1; | |
440 | ||
441 | if (len > 3 && !memcmp(src, "Id:", 3)) { | |
442 | dollar = memchr(src + 3, '$', len - 3); | |
443 | if (!dollar) | |
444 | break; | |
af9b54bb AP |
445 | memcpy(dst, "Id$", 3); |
446 | dst += 3; | |
5ecd293d PH |
447 | len -= dollar + 1 - src; |
448 | src = dollar + 1; | |
3fed15f5 JH |
449 | } |
450 | } | |
5ecd293d PH |
451 | memcpy(dst, src, len); |
452 | strbuf_setlen(buf, dst + len - buf->buf); | |
453 | return 1; | |
3fed15f5 JH |
454 | } |
455 | ||
5ecd293d PH |
456 | static int ident_to_worktree(const char *path, const char *src, size_t len, |
457 | struct strbuf *buf, int ident) | |
3fed15f5 | 458 | { |
3fed15f5 | 459 | unsigned char sha1[20]; |
5ecd293d PH |
460 | char *to_free = NULL, *dollar; |
461 | int cnt; | |
3fed15f5 JH |
462 | |
463 | if (!ident) | |
5ecd293d | 464 | return 0; |
3fed15f5 | 465 | |
5ecd293d | 466 | cnt = count_ident(src, len); |
3fed15f5 | 467 | if (!cnt) |
5ecd293d | 468 | return 0; |
3fed15f5 | 469 | |
5ecd293d PH |
470 | /* are we "faking" in place editing ? */ |
471 | if (src == buf->buf) | |
472 | to_free = strbuf_detach(buf); | |
473 | hash_sha1_file(src, len, "blob", sha1); | |
3fed15f5 | 474 | |
5ecd293d PH |
475 | strbuf_grow(buf, len + cnt * 43); |
476 | for (;;) { | |
477 | /* step 1: run to the next '$' */ | |
478 | dollar = memchr(src, '$', len); | |
479 | if (!dollar) | |
480 | break; | |
481 | strbuf_add(buf, src, dollar + 1 - src); | |
482 | len -= dollar + 1 - src; | |
483 | src = dollar + 1; | |
c23290d5 | 484 | |
5ecd293d PH |
485 | /* step 2: does it looks like a bit like Id:xxx$ or Id$ ? */ |
486 | if (len < 3 || memcmp("Id", src, 2)) | |
3fed15f5 JH |
487 | continue; |
488 | ||
5ecd293d PH |
489 | /* step 3: skip over Id$ or Id:xxxxx$ */ |
490 | if (src[2] == '$') { | |
491 | src += 3; | |
492 | len -= 3; | |
493 | } else if (src[2] == ':') { | |
494 | /* | |
495 | * It's possible that an expanded Id has crept its way into the | |
496 | * repository, we cope with that by stripping the expansion out | |
497 | */ | |
498 | dollar = memchr(src + 3, '$', len - 3); | |
499 | if (!dollar) { | |
500 | /* incomplete keyword, no more '$', so just quit the loop */ | |
501 | break; | |
502 | } | |
c23290d5 | 503 | |
5ecd293d PH |
504 | len -= dollar + 1 - src; |
505 | src = dollar + 1; | |
506 | } else { | |
507 | /* it wasn't a "Id$" or "Id:xxxx$" */ | |
508 | continue; | |
509 | } | |
c23290d5 | 510 | |
5ecd293d PH |
511 | /* step 4: substitute */ |
512 | strbuf_addstr(buf, "Id: "); | |
513 | strbuf_add(buf, sha1_to_hex(sha1), 40); | |
514 | strbuf_addstr(buf, " $"); | |
3fed15f5 | 515 | } |
5ecd293d | 516 | strbuf_add(buf, src, len); |
3fed15f5 | 517 | |
5ecd293d PH |
518 | free(to_free); |
519 | return 1; | |
35ebfd6a JH |
520 | } |
521 | ||
6073ee85 | 522 | static int git_path_check_crlf(const char *path, struct git_attr_check *check) |
35ebfd6a | 523 | { |
6073ee85 JH |
524 | const char *value = check->value; |
525 | ||
526 | if (ATTR_TRUE(value)) | |
527 | return CRLF_TEXT; | |
528 | else if (ATTR_FALSE(value)) | |
529 | return CRLF_BINARY; | |
530 | else if (ATTR_UNSET(value)) | |
531 | ; | |
532 | else if (!strcmp(value, "input")) | |
533 | return CRLF_INPUT; | |
163b9591 | 534 | return CRLF_GUESS; |
35ebfd6a JH |
535 | } |
536 | ||
aa4ed402 JH |
537 | static struct convert_driver *git_path_check_convert(const char *path, |
538 | struct git_attr_check *check) | |
539 | { | |
540 | const char *value = check->value; | |
541 | struct convert_driver *drv; | |
542 | ||
543 | if (ATTR_TRUE(value) || ATTR_FALSE(value) || ATTR_UNSET(value)) | |
544 | return NULL; | |
545 | for (drv = user_convert; drv; drv = drv->next) | |
546 | if (!strcmp(value, drv->name)) | |
547 | return drv; | |
548 | return NULL; | |
549 | } | |
550 | ||
3fed15f5 JH |
551 | static int git_path_check_ident(const char *path, struct git_attr_check *check) |
552 | { | |
553 | const char *value = check->value; | |
554 | ||
555 | return !!ATTR_TRUE(value); | |
556 | } | |
557 | ||
5ecd293d | 558 | int convert_to_git(const char *path, const char *src, size_t len, struct strbuf *dst) |
35ebfd6a | 559 | { |
aa4ed402 | 560 | struct git_attr_check check[3]; |
6073ee85 | 561 | int crlf = CRLF_GUESS; |
5ecd293d | 562 | int ident = 0, ret = 0; |
aa4ed402 | 563 | char *filter = NULL; |
6073ee85 JH |
564 | |
565 | setup_convert_check(check); | |
3fed15f5 | 566 | if (!git_checkattr(path, ARRAY_SIZE(check), check)) { |
aa4ed402 | 567 | struct convert_driver *drv; |
3fed15f5 JH |
568 | crlf = git_path_check_crlf(path, check + 0); |
569 | ident = git_path_check_ident(path, check + 1); | |
aa4ed402 JH |
570 | drv = git_path_check_convert(path, check + 2); |
571 | if (drv && drv->clean) | |
572 | filter = drv->clean; | |
3fed15f5 JH |
573 | } |
574 | ||
5ecd293d PH |
575 | ret |= apply_filter(path, src, len, dst, filter); |
576 | if (ret) { | |
577 | src = dst->buf; | |
578 | len = dst->len; | |
aa4ed402 | 579 | } |
5ecd293d PH |
580 | ret |= crlf_to_git(path, src, len, dst, crlf); |
581 | if (ret) { | |
582 | src = dst->buf; | |
583 | len = dst->len; | |
6073ee85 | 584 | } |
5ecd293d | 585 | return ret | ident_to_git(path, src, len, dst, ident); |
35ebfd6a JH |
586 | } |
587 | ||
5ecd293d | 588 | int convert_to_working_tree(const char *path, const char *src, size_t len, struct strbuf *dst) |
35ebfd6a | 589 | { |
aa4ed402 | 590 | struct git_attr_check check[3]; |
6073ee85 | 591 | int crlf = CRLF_GUESS; |
5ecd293d | 592 | int ident = 0, ret = 0; |
aa4ed402 | 593 | char *filter = NULL; |
6073ee85 JH |
594 | |
595 | setup_convert_check(check); | |
3fed15f5 | 596 | if (!git_checkattr(path, ARRAY_SIZE(check), check)) { |
aa4ed402 | 597 | struct convert_driver *drv; |
3fed15f5 JH |
598 | crlf = git_path_check_crlf(path, check + 0); |
599 | ident = git_path_check_ident(path, check + 1); | |
aa4ed402 JH |
600 | drv = git_path_check_convert(path, check + 2); |
601 | if (drv && drv->smudge) | |
602 | filter = drv->smudge; | |
6073ee85 | 603 | } |
3fed15f5 | 604 | |
5ecd293d PH |
605 | ret |= ident_to_worktree(path, src, len, dst, ident); |
606 | if (ret) { | |
607 | src = dst->buf; | |
608 | len = dst->len; | |
3fed15f5 | 609 | } |
5ecd293d PH |
610 | ret |= crlf_to_worktree(path, src, len, dst, crlf); |
611 | if (ret) { | |
612 | src = dst->buf; | |
613 | len = dst->len; | |
aa4ed402 | 614 | } |
5ecd293d | 615 | return ret | apply_filter(path, src, len, dst, filter); |
35ebfd6a | 616 | } |