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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 | 19 | struct text_stat { |
28624193 DP |
20 | /* NUL, CR, LF and CRLF counts */ |
21 | unsigned nul, cr, lf, crlf; | |
6c510bee LT |
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; | |
28624193 DP |
54 | case 0: |
55 | stats->nul++; | |
56 | /* fall through */ | |
6c510bee LT |
57 | default: |
58 | stats->nonprintable++; | |
59 | } | |
60 | } | |
61 | else | |
62 | stats->printable++; | |
63 | } | |
64 | } | |
65 | ||
66 | /* | |
67 | * The same heuristics as diff.c::mmfile_is_binary() | |
68 | */ | |
69 | static int is_binary(unsigned long size, struct text_stat *stats) | |
70 | { | |
71 | ||
28624193 DP |
72 | if (stats->nul) |
73 | return 1; | |
6c510bee LT |
74 | if ((stats->printable >> 7) < stats->nonprintable) |
75 | return 1; | |
76 | /* | |
77 | * Other heuristics? Average line length might be relevant, | |
78 | * as might LF vs CR vs CRLF counts.. | |
79 | * | |
80 | * NOTE! It might be normal to have a low ratio of CRLF to LF | |
81 | * (somebody starts with a LF-only file and edits it with an editor | |
82 | * that adds CRLF only to lines that are added..). But do we | |
83 | * want to support CR-only? Probably not. | |
84 | */ | |
85 | return 0; | |
86 | } | |
87 | ||
21e5ad50 SP |
88 | static void check_safe_crlf(const char *path, int action, |
89 | struct text_stat *stats, enum safe_crlf checksafe) | |
90 | { | |
91 | if (!checksafe) | |
92 | return; | |
93 | ||
94 | if (action == CRLF_INPUT || auto_crlf <= 0) { | |
95 | /* | |
96 | * CRLFs would not be restored by checkout: | |
97 | * check if we'd remove CRLFs | |
98 | */ | |
99 | if (stats->crlf) { | |
100 | if (checksafe == SAFE_CRLF_WARN) | |
101 | warning("CRLF will be replaced by LF in %s.", path); | |
102 | else /* i.e. SAFE_CRLF_FAIL */ | |
103 | die("CRLF would be replaced by LF in %s.", path); | |
104 | } | |
105 | } else if (auto_crlf > 0) { | |
106 | /* | |
107 | * CRLFs would be added by checkout: | |
108 | * check if we have "naked" LFs | |
109 | */ | |
110 | if (stats->lf != stats->crlf) { | |
111 | if (checksafe == SAFE_CRLF_WARN) | |
112 | warning("LF will be replaced by CRLF in %s", path); | |
113 | else /* i.e. SAFE_CRLF_FAIL */ | |
114 | die("LF would be replaced by CRLF in %s", path); | |
115 | } | |
116 | } | |
117 | } | |
118 | ||
5ecd293d | 119 | static int crlf_to_git(const char *path, const char *src, size_t len, |
21e5ad50 | 120 | struct strbuf *buf, int action, enum safe_crlf checksafe) |
6c510bee | 121 | { |
6c510bee | 122 | struct text_stat stats; |
5ecd293d | 123 | char *dst; |
6c510bee | 124 | |
5ecd293d PH |
125 | if ((action == CRLF_BINARY) || !auto_crlf || !len) |
126 | return 0; | |
6c510bee | 127 | |
5ecd293d | 128 | gather_stats(src, len, &stats); |
6c510bee | 129 | |
163b9591 | 130 | if (action == CRLF_GUESS) { |
201ac8ef JH |
131 | /* |
132 | * We're currently not going to even try to convert stuff | |
133 | * that has bare CR characters. Does anybody do that crazy | |
134 | * stuff? | |
135 | */ | |
136 | if (stats.cr != stats.crlf) | |
5ecd293d | 137 | return 0; |
201ac8ef JH |
138 | |
139 | /* | |
140 | * And add some heuristics for binary vs text, of course... | |
141 | */ | |
5ecd293d PH |
142 | if (is_binary(len, &stats)) |
143 | return 0; | |
201ac8ef | 144 | } |
6c510bee | 145 | |
21e5ad50 SP |
146 | check_safe_crlf(path, action, &stats, checksafe); |
147 | ||
148 | /* Optimization: No CR? Nothing to convert, regardless. */ | |
149 | if (!stats.cr) | |
150 | return 0; | |
151 | ||
90d16ec0 PH |
152 | /* only grow if not in place */ |
153 | if (strbuf_avail(buf) + buf->len < len) | |
154 | strbuf_grow(buf, len - buf->len); | |
5ecd293d | 155 | dst = buf->buf; |
163b9591 JH |
156 | if (action == CRLF_GUESS) { |
157 | /* | |
158 | * If we guessed, we already know we rejected a file with | |
159 | * lone CR, and we can strip a CR without looking at what | |
160 | * follow it. | |
161 | */ | |
201ac8ef | 162 | do { |
ac78e548 | 163 | unsigned char c = *src++; |
201ac8ef | 164 | if (c != '\r') |
ac78e548 | 165 | *dst++ = c; |
5ecd293d | 166 | } while (--len); |
201ac8ef JH |
167 | } else { |
168 | do { | |
ac78e548 | 169 | unsigned char c = *src++; |
5ecd293d | 170 | if (! (c == '\r' && (1 < len && *src == '\n'))) |
ac78e548 | 171 | *dst++ = c; |
5ecd293d | 172 | } while (--len); |
201ac8ef | 173 | } |
5ecd293d PH |
174 | strbuf_setlen(buf, dst - buf->buf); |
175 | return 1; | |
6c510bee LT |
176 | } |
177 | ||
5ecd293d PH |
178 | static int crlf_to_worktree(const char *path, const char *src, size_t len, |
179 | struct strbuf *buf, int action) | |
6c510bee | 180 | { |
5ecd293d | 181 | char *to_free = NULL; |
6c510bee | 182 | struct text_stat stats; |
6c510bee | 183 | |
163b9591 | 184 | if ((action == CRLF_BINARY) || (action == CRLF_INPUT) || |
760f0c62 | 185 | auto_crlf <= 0) |
5ecd293d | 186 | return 0; |
6c510bee | 187 | |
5ecd293d PH |
188 | if (!len) |
189 | return 0; | |
6c510bee | 190 | |
5ecd293d | 191 | gather_stats(src, len, &stats); |
6c510bee LT |
192 | |
193 | /* No LF? Nothing to convert, regardless. */ | |
194 | if (!stats.lf) | |
5ecd293d | 195 | return 0; |
6c510bee LT |
196 | |
197 | /* Was it already in CRLF format? */ | |
198 | if (stats.lf == stats.crlf) | |
5ecd293d | 199 | return 0; |
6c510bee | 200 | |
163b9591 | 201 | if (action == CRLF_GUESS) { |
201ac8ef JH |
202 | /* If we have any bare CR characters, we're not going to touch it */ |
203 | if (stats.cr != stats.crlf) | |
5ecd293d | 204 | return 0; |
6c510bee | 205 | |
5ecd293d PH |
206 | if (is_binary(len, &stats)) |
207 | return 0; | |
201ac8ef | 208 | } |
6c510bee | 209 | |
5ecd293d PH |
210 | /* are we "faking" in place editing ? */ |
211 | if (src == buf->buf) | |
b315c5c0 | 212 | to_free = strbuf_detach(buf, NULL); |
5ecd293d PH |
213 | |
214 | strbuf_grow(buf, len + stats.lf - stats.crlf); | |
215 | for (;;) { | |
216 | const char *nl = memchr(src, '\n', len); | |
217 | if (!nl) | |
218 | break; | |
219 | if (nl > src && nl[-1] == '\r') { | |
220 | strbuf_add(buf, src, nl + 1 - src); | |
221 | } else { | |
222 | strbuf_add(buf, src, nl - src); | |
223 | strbuf_addstr(buf, "\r\n"); | |
224 | } | |
225 | len -= nl + 1 - src; | |
226 | src = nl + 1; | |
227 | } | |
228 | strbuf_add(buf, src, len); | |
229 | ||
230 | free(to_free); | |
231 | return 1; | |
6c510bee | 232 | } |
35ebfd6a | 233 | |
546bb582 JS |
234 | struct filter_params { |
235 | const char *src; | |
236 | unsigned long size; | |
237 | const char *cmd; | |
238 | }; | |
239 | ||
240 | static int filter_buffer(int fd, void *data) | |
aa4ed402 JH |
241 | { |
242 | /* | |
243 | * Spawn cmd and feed the buffer contents through its stdin. | |
244 | */ | |
245 | struct child_process child_process; | |
546bb582 | 246 | struct filter_params *params = (struct filter_params *)data; |
aa4ed402 | 247 | int write_err, status; |
546bb582 | 248 | const char *argv[] = { "sh", "-c", params->cmd, NULL }; |
aa4ed402 JH |
249 | |
250 | memset(&child_process, 0, sizeof(child_process)); | |
dc1bfdcd JS |
251 | child_process.argv = argv; |
252 | child_process.in = -1; | |
7683b6e8 | 253 | child_process.out = fd; |
aa4ed402 | 254 | |
dc1bfdcd | 255 | if (start_command(&child_process)) |
546bb582 | 256 | return error("cannot fork to run external filter %s", params->cmd); |
aa4ed402 | 257 | |
546bb582 | 258 | write_err = (write_in_full(child_process.in, params->src, params->size) < 0); |
dc1bfdcd | 259 | if (close(child_process.in)) |
aa4ed402 JH |
260 | write_err = 1; |
261 | if (write_err) | |
546bb582 | 262 | error("cannot feed the input to external filter %s", params->cmd); |
aa4ed402 JH |
263 | |
264 | status = finish_command(&child_process); | |
265 | if (status) | |
546bb582 | 266 | error("external filter %s failed %d", params->cmd, -status); |
aa4ed402 JH |
267 | return (write_err || status); |
268 | } | |
269 | ||
5ecd293d PH |
270 | static int apply_filter(const char *path, const char *src, size_t len, |
271 | struct strbuf *dst, const char *cmd) | |
aa4ed402 JH |
272 | { |
273 | /* | |
274 | * Create a pipeline to have the command filter the buffer's | |
275 | * contents. | |
276 | * | |
277 | * (child --> cmd) --> us | |
278 | */ | |
546bb582 | 279 | int ret = 1; |
5ecd293d | 280 | struct strbuf nbuf; |
546bb582 JS |
281 | struct async async; |
282 | struct filter_params params; | |
aa4ed402 JH |
283 | |
284 | if (!cmd) | |
5ecd293d | 285 | return 0; |
aa4ed402 | 286 | |
546bb582 JS |
287 | memset(&async, 0, sizeof(async)); |
288 | async.proc = filter_buffer; | |
289 | async.data = ¶ms; | |
290 | params.src = src; | |
291 | params.size = len; | |
292 | params.cmd = cmd; | |
aa4ed402 JH |
293 | |
294 | fflush(NULL); | |
546bb582 JS |
295 | if (start_async(&async)) |
296 | return 0; /* error was already reported */ | |
aa4ed402 | 297 | |
5ecd293d | 298 | strbuf_init(&nbuf, 0); |
546bb582 | 299 | if (strbuf_read(&nbuf, async.out, len) < 0) { |
5ecd293d PH |
300 | error("read from external filter %s failed", cmd); |
301 | ret = 0; | |
aa4ed402 | 302 | } |
546bb582 | 303 | if (close(async.out)) { |
90d16ec0 | 304 | error("read from external filter %s failed", cmd); |
5ecd293d | 305 | ret = 0; |
aa4ed402 | 306 | } |
546bb582 JS |
307 | if (finish_async(&async)) { |
308 | error("external filter %s failed", cmd); | |
5ecd293d | 309 | ret = 0; |
aa4ed402 JH |
310 | } |
311 | ||
5ecd293d | 312 | if (ret) { |
90d16ec0 | 313 | strbuf_swap(dst, &nbuf); |
5ecd293d | 314 | } |
90d16ec0 | 315 | strbuf_release(&nbuf); |
5ecd293d | 316 | return ret; |
aa4ed402 JH |
317 | } |
318 | ||
319 | static struct convert_driver { | |
320 | const char *name; | |
321 | struct convert_driver *next; | |
cd8be6c9 BH |
322 | const char *smudge; |
323 | const char *clean; | |
aa4ed402 JH |
324 | } *user_convert, **user_convert_tail; |
325 | ||
ef90d6d4 | 326 | static int read_convert_config(const char *var, const char *value, void *cb) |
aa4ed402 JH |
327 | { |
328 | const char *ep, *name; | |
329 | int namelen; | |
330 | struct convert_driver *drv; | |
331 | ||
332 | /* | |
333 | * External conversion drivers are configured using | |
334 | * "filter.<name>.variable". | |
335 | */ | |
336 | if (prefixcmp(var, "filter.") || (ep = strrchr(var, '.')) == var + 6) | |
337 | return 0; | |
338 | name = var + 7; | |
339 | namelen = ep - name; | |
340 | for (drv = user_convert; drv; drv = drv->next) | |
341 | if (!strncmp(drv->name, name, namelen) && !drv->name[namelen]) | |
342 | break; | |
343 | if (!drv) { | |
aa4ed402 | 344 | drv = xcalloc(1, sizeof(struct convert_driver)); |
182af834 | 345 | drv->name = xmemdupz(name, namelen); |
aa4ed402 JH |
346 | *user_convert_tail = drv; |
347 | user_convert_tail = &(drv->next); | |
348 | } | |
349 | ||
350 | ep++; | |
351 | ||
352 | /* | |
353 | * filter.<name>.smudge and filter.<name>.clean specifies | |
354 | * the command line: | |
355 | * | |
356 | * command-line | |
357 | * | |
358 | * The command-line will not be interpolated in any way. | |
359 | */ | |
360 | ||
cd8be6c9 BH |
361 | if (!strcmp("smudge", ep)) |
362 | return git_config_string(&drv->smudge, var, value); | |
363 | ||
364 | if (!strcmp("clean", ep)) | |
365 | return git_config_string(&drv->clean, var, value); | |
aa4ed402 | 366 | |
aa4ed402 JH |
367 | return 0; |
368 | } | |
369 | ||
6073ee85 | 370 | static void setup_convert_check(struct git_attr_check *check) |
35ebfd6a JH |
371 | { |
372 | static struct git_attr *attr_crlf; | |
3fed15f5 | 373 | static struct git_attr *attr_ident; |
aa4ed402 | 374 | static struct git_attr *attr_filter; |
35ebfd6a | 375 | |
3fed15f5 | 376 | if (!attr_crlf) { |
35ebfd6a | 377 | attr_crlf = git_attr("crlf", 4); |
3fed15f5 | 378 | attr_ident = git_attr("ident", 5); |
aa4ed402 JH |
379 | attr_filter = git_attr("filter", 6); |
380 | user_convert_tail = &user_convert; | |
ef90d6d4 | 381 | git_config(read_convert_config, NULL); |
3fed15f5 JH |
382 | } |
383 | check[0].attr = attr_crlf; | |
384 | check[1].attr = attr_ident; | |
aa4ed402 | 385 | check[2].attr = attr_filter; |
3fed15f5 JH |
386 | } |
387 | ||
388 | static int count_ident(const char *cp, unsigned long size) | |
389 | { | |
390 | /* | |
af9b54bb | 391 | * "$Id: 0000000000000000000000000000000000000000 $" <=> "$Id$" |
3fed15f5 JH |
392 | */ |
393 | int cnt = 0; | |
394 | char ch; | |
395 | ||
396 | while (size) { | |
397 | ch = *cp++; | |
398 | size--; | |
399 | if (ch != '$') | |
400 | continue; | |
af9b54bb | 401 | if (size < 3) |
3fed15f5 | 402 | break; |
af9b54bb | 403 | if (memcmp("Id", cp, 2)) |
3fed15f5 | 404 | continue; |
af9b54bb AP |
405 | ch = cp[2]; |
406 | cp += 3; | |
407 | size -= 3; | |
3fed15f5 | 408 | if (ch == '$') |
af9b54bb | 409 | cnt++; /* $Id$ */ |
3fed15f5 JH |
410 | if (ch != ':') |
411 | continue; | |
412 | ||
413 | /* | |
af9b54bb | 414 | * "$Id: ... "; scan up to the closing dollar sign and discard. |
3fed15f5 JH |
415 | */ |
416 | while (size) { | |
417 | ch = *cp++; | |
418 | size--; | |
419 | if (ch == '$') { | |
420 | cnt++; | |
421 | break; | |
422 | } | |
423 | } | |
424 | } | |
425 | return cnt; | |
426 | } | |
427 | ||
5ecd293d PH |
428 | static int ident_to_git(const char *path, const char *src, size_t len, |
429 | struct strbuf *buf, int ident) | |
3fed15f5 | 430 | { |
5ecd293d | 431 | char *dst, *dollar; |
3fed15f5 | 432 | |
5ecd293d PH |
433 | if (!ident || !count_ident(src, len)) |
434 | return 0; | |
435 | ||
90d16ec0 PH |
436 | /* only grow if not in place */ |
437 | if (strbuf_avail(buf) + buf->len < len) | |
438 | strbuf_grow(buf, len - buf->len); | |
5ecd293d PH |
439 | dst = buf->buf; |
440 | for (;;) { | |
441 | dollar = memchr(src, '$', len); | |
442 | if (!dollar) | |
443 | break; | |
444 | memcpy(dst, src, dollar + 1 - src); | |
445 | dst += dollar + 1 - src; | |
446 | len -= dollar + 1 - src; | |
447 | src = dollar + 1; | |
448 | ||
449 | if (len > 3 && !memcmp(src, "Id:", 3)) { | |
450 | dollar = memchr(src + 3, '$', len - 3); | |
451 | if (!dollar) | |
452 | break; | |
af9b54bb AP |
453 | memcpy(dst, "Id$", 3); |
454 | dst += 3; | |
5ecd293d PH |
455 | len -= dollar + 1 - src; |
456 | src = dollar + 1; | |
3fed15f5 JH |
457 | } |
458 | } | |
5ecd293d PH |
459 | memcpy(dst, src, len); |
460 | strbuf_setlen(buf, dst + len - buf->buf); | |
461 | return 1; | |
3fed15f5 JH |
462 | } |
463 | ||
5ecd293d PH |
464 | static int ident_to_worktree(const char *path, const char *src, size_t len, |
465 | struct strbuf *buf, int ident) | |
3fed15f5 | 466 | { |
3fed15f5 | 467 | unsigned char sha1[20]; |
5ecd293d PH |
468 | char *to_free = NULL, *dollar; |
469 | int cnt; | |
3fed15f5 JH |
470 | |
471 | if (!ident) | |
5ecd293d | 472 | return 0; |
3fed15f5 | 473 | |
5ecd293d | 474 | cnt = count_ident(src, len); |
3fed15f5 | 475 | if (!cnt) |
5ecd293d | 476 | return 0; |
3fed15f5 | 477 | |
5ecd293d PH |
478 | /* are we "faking" in place editing ? */ |
479 | if (src == buf->buf) | |
b315c5c0 | 480 | to_free = strbuf_detach(buf, NULL); |
5ecd293d | 481 | hash_sha1_file(src, len, "blob", sha1); |
3fed15f5 | 482 | |
5ecd293d PH |
483 | strbuf_grow(buf, len + cnt * 43); |
484 | for (;;) { | |
485 | /* step 1: run to the next '$' */ | |
486 | dollar = memchr(src, '$', len); | |
487 | if (!dollar) | |
488 | break; | |
489 | strbuf_add(buf, src, dollar + 1 - src); | |
490 | len -= dollar + 1 - src; | |
491 | src = dollar + 1; | |
c23290d5 | 492 | |
5ecd293d PH |
493 | /* step 2: does it looks like a bit like Id:xxx$ or Id$ ? */ |
494 | if (len < 3 || memcmp("Id", src, 2)) | |
3fed15f5 JH |
495 | continue; |
496 | ||
5ecd293d PH |
497 | /* step 3: skip over Id$ or Id:xxxxx$ */ |
498 | if (src[2] == '$') { | |
499 | src += 3; | |
500 | len -= 3; | |
501 | } else if (src[2] == ':') { | |
502 | /* | |
503 | * It's possible that an expanded Id has crept its way into the | |
504 | * repository, we cope with that by stripping the expansion out | |
505 | */ | |
506 | dollar = memchr(src + 3, '$', len - 3); | |
507 | if (!dollar) { | |
508 | /* incomplete keyword, no more '$', so just quit the loop */ | |
509 | break; | |
510 | } | |
c23290d5 | 511 | |
5ecd293d PH |
512 | len -= dollar + 1 - src; |
513 | src = dollar + 1; | |
514 | } else { | |
515 | /* it wasn't a "Id$" or "Id:xxxx$" */ | |
516 | continue; | |
517 | } | |
c23290d5 | 518 | |
5ecd293d PH |
519 | /* step 4: substitute */ |
520 | strbuf_addstr(buf, "Id: "); | |
521 | strbuf_add(buf, sha1_to_hex(sha1), 40); | |
522 | strbuf_addstr(buf, " $"); | |
3fed15f5 | 523 | } |
5ecd293d | 524 | strbuf_add(buf, src, len); |
3fed15f5 | 525 | |
5ecd293d PH |
526 | free(to_free); |
527 | return 1; | |
35ebfd6a JH |
528 | } |
529 | ||
6073ee85 | 530 | static int git_path_check_crlf(const char *path, struct git_attr_check *check) |
35ebfd6a | 531 | { |
6073ee85 JH |
532 | const char *value = check->value; |
533 | ||
534 | if (ATTR_TRUE(value)) | |
535 | return CRLF_TEXT; | |
536 | else if (ATTR_FALSE(value)) | |
537 | return CRLF_BINARY; | |
538 | else if (ATTR_UNSET(value)) | |
539 | ; | |
540 | else if (!strcmp(value, "input")) | |
541 | return CRLF_INPUT; | |
163b9591 | 542 | return CRLF_GUESS; |
35ebfd6a JH |
543 | } |
544 | ||
aa4ed402 JH |
545 | static struct convert_driver *git_path_check_convert(const char *path, |
546 | struct git_attr_check *check) | |
547 | { | |
548 | const char *value = check->value; | |
549 | struct convert_driver *drv; | |
550 | ||
551 | if (ATTR_TRUE(value) || ATTR_FALSE(value) || ATTR_UNSET(value)) | |
552 | return NULL; | |
553 | for (drv = user_convert; drv; drv = drv->next) | |
554 | if (!strcmp(value, drv->name)) | |
555 | return drv; | |
556 | return NULL; | |
557 | } | |
558 | ||
3fed15f5 JH |
559 | static int git_path_check_ident(const char *path, struct git_attr_check *check) |
560 | { | |
561 | const char *value = check->value; | |
562 | ||
563 | return !!ATTR_TRUE(value); | |
564 | } | |
565 | ||
21e5ad50 SP |
566 | int convert_to_git(const char *path, const char *src, size_t len, |
567 | struct strbuf *dst, enum safe_crlf checksafe) | |
35ebfd6a | 568 | { |
aa4ed402 | 569 | struct git_attr_check check[3]; |
6073ee85 | 570 | int crlf = CRLF_GUESS; |
5ecd293d | 571 | int ident = 0, ret = 0; |
cd8be6c9 | 572 | const char *filter = NULL; |
6073ee85 JH |
573 | |
574 | setup_convert_check(check); | |
3fed15f5 | 575 | if (!git_checkattr(path, ARRAY_SIZE(check), check)) { |
aa4ed402 | 576 | struct convert_driver *drv; |
3fed15f5 JH |
577 | crlf = git_path_check_crlf(path, check + 0); |
578 | ident = git_path_check_ident(path, check + 1); | |
aa4ed402 JH |
579 | drv = git_path_check_convert(path, check + 2); |
580 | if (drv && drv->clean) | |
581 | filter = drv->clean; | |
3fed15f5 JH |
582 | } |
583 | ||
5ecd293d PH |
584 | ret |= apply_filter(path, src, len, dst, filter); |
585 | if (ret) { | |
586 | src = dst->buf; | |
587 | len = dst->len; | |
aa4ed402 | 588 | } |
21e5ad50 | 589 | ret |= crlf_to_git(path, src, len, dst, crlf, checksafe); |
5ecd293d PH |
590 | if (ret) { |
591 | src = dst->buf; | |
592 | len = dst->len; | |
6073ee85 | 593 | } |
5ecd293d | 594 | return ret | ident_to_git(path, src, len, dst, ident); |
35ebfd6a JH |
595 | } |
596 | ||
5ecd293d | 597 | int convert_to_working_tree(const char *path, const char *src, size_t len, struct strbuf *dst) |
35ebfd6a | 598 | { |
aa4ed402 | 599 | struct git_attr_check check[3]; |
6073ee85 | 600 | int crlf = CRLF_GUESS; |
5ecd293d | 601 | int ident = 0, ret = 0; |
cd8be6c9 | 602 | const char *filter = NULL; |
6073ee85 JH |
603 | |
604 | setup_convert_check(check); | |
3fed15f5 | 605 | if (!git_checkattr(path, ARRAY_SIZE(check), check)) { |
aa4ed402 | 606 | struct convert_driver *drv; |
3fed15f5 JH |
607 | crlf = git_path_check_crlf(path, check + 0); |
608 | ident = git_path_check_ident(path, check + 1); | |
aa4ed402 JH |
609 | drv = git_path_check_convert(path, check + 2); |
610 | if (drv && drv->smudge) | |
611 | filter = drv->smudge; | |
6073ee85 | 612 | } |
3fed15f5 | 613 | |
5ecd293d PH |
614 | ret |= ident_to_worktree(path, src, len, dst, ident); |
615 | if (ret) { | |
616 | src = dst->buf; | |
617 | len = dst->len; | |
3fed15f5 | 618 | } |
5ecd293d PH |
619 | ret |= crlf_to_worktree(path, src, len, dst, crlf); |
620 | if (ret) { | |
621 | src = dst->buf; | |
622 | len = dst->len; | |
aa4ed402 | 623 | } |
5ecd293d | 624 | return ret | apply_filter(path, src, len, dst, filter); |
35ebfd6a | 625 | } |