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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 | } | |
f9dd4bf4 DK |
64 | |
65 | /* If file ends with EOF then don't count this EOF as non-printable. */ | |
66 | if (size >= 1 && buf[size-1] == '\032') | |
67 | stats->nonprintable--; | |
6c510bee LT |
68 | } |
69 | ||
70 | /* | |
71 | * The same heuristics as diff.c::mmfile_is_binary() | |
72 | */ | |
73 | static int is_binary(unsigned long size, struct text_stat *stats) | |
74 | { | |
75 | ||
28624193 DP |
76 | if (stats->nul) |
77 | return 1; | |
6c510bee LT |
78 | if ((stats->printable >> 7) < stats->nonprintable) |
79 | return 1; | |
80 | /* | |
81 | * Other heuristics? Average line length might be relevant, | |
82 | * as might LF vs CR vs CRLF counts.. | |
83 | * | |
84 | * NOTE! It might be normal to have a low ratio of CRLF to LF | |
85 | * (somebody starts with a LF-only file and edits it with an editor | |
86 | * that adds CRLF only to lines that are added..). But do we | |
87 | * want to support CR-only? Probably not. | |
88 | */ | |
89 | return 0; | |
90 | } | |
91 | ||
21e5ad50 SP |
92 | static void check_safe_crlf(const char *path, int action, |
93 | struct text_stat *stats, enum safe_crlf checksafe) | |
94 | { | |
95 | if (!checksafe) | |
96 | return; | |
97 | ||
98 | if (action == CRLF_INPUT || auto_crlf <= 0) { | |
99 | /* | |
100 | * CRLFs would not be restored by checkout: | |
101 | * check if we'd remove CRLFs | |
102 | */ | |
103 | if (stats->crlf) { | |
104 | if (checksafe == SAFE_CRLF_WARN) | |
105 | warning("CRLF will be replaced by LF in %s.", path); | |
106 | else /* i.e. SAFE_CRLF_FAIL */ | |
107 | die("CRLF would be replaced by LF in %s.", path); | |
108 | } | |
109 | } else if (auto_crlf > 0) { | |
110 | /* | |
111 | * CRLFs would be added by checkout: | |
112 | * check if we have "naked" LFs | |
113 | */ | |
114 | if (stats->lf != stats->crlf) { | |
115 | if (checksafe == SAFE_CRLF_WARN) | |
116 | warning("LF will be replaced by CRLF in %s", path); | |
117 | else /* i.e. SAFE_CRLF_FAIL */ | |
118 | die("LF would be replaced by CRLF in %s", path); | |
119 | } | |
120 | } | |
121 | } | |
122 | ||
5ecd293d | 123 | static int crlf_to_git(const char *path, const char *src, size_t len, |
21e5ad50 | 124 | struct strbuf *buf, int action, enum safe_crlf checksafe) |
6c510bee | 125 | { |
6c510bee | 126 | struct text_stat stats; |
5ecd293d | 127 | char *dst; |
6c510bee | 128 | |
5ecd293d PH |
129 | if ((action == CRLF_BINARY) || !auto_crlf || !len) |
130 | return 0; | |
6c510bee | 131 | |
5ecd293d | 132 | gather_stats(src, len, &stats); |
6c510bee | 133 | |
163b9591 | 134 | if (action == CRLF_GUESS) { |
201ac8ef JH |
135 | /* |
136 | * We're currently not going to even try to convert stuff | |
137 | * that has bare CR characters. Does anybody do that crazy | |
138 | * stuff? | |
139 | */ | |
140 | if (stats.cr != stats.crlf) | |
5ecd293d | 141 | return 0; |
201ac8ef JH |
142 | |
143 | /* | |
144 | * And add some heuristics for binary vs text, of course... | |
145 | */ | |
5ecd293d PH |
146 | if (is_binary(len, &stats)) |
147 | return 0; | |
201ac8ef | 148 | } |
6c510bee | 149 | |
21e5ad50 SP |
150 | check_safe_crlf(path, action, &stats, checksafe); |
151 | ||
152 | /* Optimization: No CR? Nothing to convert, regardless. */ | |
153 | if (!stats.cr) | |
154 | return 0; | |
155 | ||
90d16ec0 PH |
156 | /* only grow if not in place */ |
157 | if (strbuf_avail(buf) + buf->len < len) | |
158 | strbuf_grow(buf, len - buf->len); | |
5ecd293d | 159 | dst = buf->buf; |
163b9591 JH |
160 | if (action == CRLF_GUESS) { |
161 | /* | |
162 | * If we guessed, we already know we rejected a file with | |
163 | * lone CR, and we can strip a CR without looking at what | |
164 | * follow it. | |
165 | */ | |
201ac8ef | 166 | do { |
ac78e548 | 167 | unsigned char c = *src++; |
201ac8ef | 168 | if (c != '\r') |
ac78e548 | 169 | *dst++ = c; |
5ecd293d | 170 | } while (--len); |
201ac8ef JH |
171 | } else { |
172 | do { | |
ac78e548 | 173 | unsigned char c = *src++; |
5ecd293d | 174 | if (! (c == '\r' && (1 < len && *src == '\n'))) |
ac78e548 | 175 | *dst++ = c; |
5ecd293d | 176 | } while (--len); |
201ac8ef | 177 | } |
5ecd293d PH |
178 | strbuf_setlen(buf, dst - buf->buf); |
179 | return 1; | |
6c510bee LT |
180 | } |
181 | ||
5ecd293d PH |
182 | static int crlf_to_worktree(const char *path, const char *src, size_t len, |
183 | struct strbuf *buf, int action) | |
6c510bee | 184 | { |
5ecd293d | 185 | char *to_free = NULL; |
6c510bee | 186 | struct text_stat stats; |
6c510bee | 187 | |
163b9591 | 188 | if ((action == CRLF_BINARY) || (action == CRLF_INPUT) || |
760f0c62 | 189 | auto_crlf <= 0) |
5ecd293d | 190 | return 0; |
6c510bee | 191 | |
5ecd293d PH |
192 | if (!len) |
193 | return 0; | |
6c510bee | 194 | |
5ecd293d | 195 | gather_stats(src, len, &stats); |
6c510bee LT |
196 | |
197 | /* No LF? Nothing to convert, regardless. */ | |
198 | if (!stats.lf) | |
5ecd293d | 199 | return 0; |
6c510bee LT |
200 | |
201 | /* Was it already in CRLF format? */ | |
202 | if (stats.lf == stats.crlf) | |
5ecd293d | 203 | return 0; |
6c510bee | 204 | |
163b9591 | 205 | if (action == CRLF_GUESS) { |
201ac8ef JH |
206 | /* If we have any bare CR characters, we're not going to touch it */ |
207 | if (stats.cr != stats.crlf) | |
5ecd293d | 208 | return 0; |
6c510bee | 209 | |
5ecd293d PH |
210 | if (is_binary(len, &stats)) |
211 | return 0; | |
201ac8ef | 212 | } |
6c510bee | 213 | |
5ecd293d PH |
214 | /* are we "faking" in place editing ? */ |
215 | if (src == buf->buf) | |
b315c5c0 | 216 | to_free = strbuf_detach(buf, NULL); |
5ecd293d PH |
217 | |
218 | strbuf_grow(buf, len + stats.lf - stats.crlf); | |
219 | for (;;) { | |
220 | const char *nl = memchr(src, '\n', len); | |
221 | if (!nl) | |
222 | break; | |
223 | if (nl > src && nl[-1] == '\r') { | |
224 | strbuf_add(buf, src, nl + 1 - src); | |
225 | } else { | |
226 | strbuf_add(buf, src, nl - src); | |
227 | strbuf_addstr(buf, "\r\n"); | |
228 | } | |
229 | len -= nl + 1 - src; | |
230 | src = nl + 1; | |
231 | } | |
232 | strbuf_add(buf, src, len); | |
233 | ||
234 | free(to_free); | |
235 | return 1; | |
6c510bee | 236 | } |
35ebfd6a | 237 | |
546bb582 JS |
238 | struct filter_params { |
239 | const char *src; | |
240 | unsigned long size; | |
241 | const char *cmd; | |
242 | }; | |
243 | ||
244 | static int filter_buffer(int fd, void *data) | |
aa4ed402 JH |
245 | { |
246 | /* | |
247 | * Spawn cmd and feed the buffer contents through its stdin. | |
248 | */ | |
249 | struct child_process child_process; | |
546bb582 | 250 | struct filter_params *params = (struct filter_params *)data; |
aa4ed402 | 251 | int write_err, status; |
546bb582 | 252 | const char *argv[] = { "sh", "-c", params->cmd, NULL }; |
aa4ed402 JH |
253 | |
254 | memset(&child_process, 0, sizeof(child_process)); | |
dc1bfdcd JS |
255 | child_process.argv = argv; |
256 | child_process.in = -1; | |
7683b6e8 | 257 | child_process.out = fd; |
aa4ed402 | 258 | |
dc1bfdcd | 259 | if (start_command(&child_process)) |
546bb582 | 260 | return error("cannot fork to run external filter %s", params->cmd); |
aa4ed402 | 261 | |
546bb582 | 262 | write_err = (write_in_full(child_process.in, params->src, params->size) < 0); |
dc1bfdcd | 263 | if (close(child_process.in)) |
aa4ed402 JH |
264 | write_err = 1; |
265 | if (write_err) | |
546bb582 | 266 | error("cannot feed the input to external filter %s", params->cmd); |
aa4ed402 JH |
267 | |
268 | status = finish_command(&child_process); | |
269 | if (status) | |
5709e036 | 270 | error("external filter %s failed %d", params->cmd, status); |
aa4ed402 JH |
271 | return (write_err || status); |
272 | } | |
273 | ||
5ecd293d PH |
274 | static int apply_filter(const char *path, const char *src, size_t len, |
275 | struct strbuf *dst, const char *cmd) | |
aa4ed402 JH |
276 | { |
277 | /* | |
278 | * Create a pipeline to have the command filter the buffer's | |
279 | * contents. | |
280 | * | |
281 | * (child --> cmd) --> us | |
282 | */ | |
546bb582 | 283 | int ret = 1; |
f285a2d7 | 284 | struct strbuf nbuf = STRBUF_INIT; |
546bb582 JS |
285 | struct async async; |
286 | struct filter_params params; | |
aa4ed402 JH |
287 | |
288 | if (!cmd) | |
5ecd293d | 289 | return 0; |
aa4ed402 | 290 | |
546bb582 JS |
291 | memset(&async, 0, sizeof(async)); |
292 | async.proc = filter_buffer; | |
293 | async.data = ¶ms; | |
294 | params.src = src; | |
295 | params.size = len; | |
296 | params.cmd = cmd; | |
aa4ed402 JH |
297 | |
298 | fflush(NULL); | |
546bb582 JS |
299 | if (start_async(&async)) |
300 | return 0; /* error was already reported */ | |
aa4ed402 | 301 | |
546bb582 | 302 | if (strbuf_read(&nbuf, async.out, len) < 0) { |
5ecd293d PH |
303 | error("read from external filter %s failed", cmd); |
304 | ret = 0; | |
aa4ed402 | 305 | } |
546bb582 | 306 | if (close(async.out)) { |
90d16ec0 | 307 | error("read from external filter %s failed", cmd); |
5ecd293d | 308 | ret = 0; |
aa4ed402 | 309 | } |
546bb582 JS |
310 | if (finish_async(&async)) { |
311 | error("external filter %s failed", cmd); | |
5ecd293d | 312 | ret = 0; |
aa4ed402 JH |
313 | } |
314 | ||
5ecd293d | 315 | if (ret) { |
90d16ec0 | 316 | strbuf_swap(dst, &nbuf); |
5ecd293d | 317 | } |
90d16ec0 | 318 | strbuf_release(&nbuf); |
5ecd293d | 319 | return ret; |
aa4ed402 JH |
320 | } |
321 | ||
322 | static struct convert_driver { | |
323 | const char *name; | |
324 | struct convert_driver *next; | |
cd8be6c9 BH |
325 | const char *smudge; |
326 | const char *clean; | |
aa4ed402 JH |
327 | } *user_convert, **user_convert_tail; |
328 | ||
ef90d6d4 | 329 | static int read_convert_config(const char *var, const char *value, void *cb) |
aa4ed402 JH |
330 | { |
331 | const char *ep, *name; | |
332 | int namelen; | |
333 | struct convert_driver *drv; | |
334 | ||
335 | /* | |
336 | * External conversion drivers are configured using | |
337 | * "filter.<name>.variable". | |
338 | */ | |
339 | if (prefixcmp(var, "filter.") || (ep = strrchr(var, '.')) == var + 6) | |
340 | return 0; | |
341 | name = var + 7; | |
342 | namelen = ep - name; | |
343 | for (drv = user_convert; drv; drv = drv->next) | |
344 | if (!strncmp(drv->name, name, namelen) && !drv->name[namelen]) | |
345 | break; | |
346 | if (!drv) { | |
aa4ed402 | 347 | drv = xcalloc(1, sizeof(struct convert_driver)); |
182af834 | 348 | drv->name = xmemdupz(name, namelen); |
aa4ed402 JH |
349 | *user_convert_tail = drv; |
350 | user_convert_tail = &(drv->next); | |
351 | } | |
352 | ||
353 | ep++; | |
354 | ||
355 | /* | |
356 | * filter.<name>.smudge and filter.<name>.clean specifies | |
357 | * the command line: | |
358 | * | |
359 | * command-line | |
360 | * | |
361 | * The command-line will not be interpolated in any way. | |
362 | */ | |
363 | ||
cd8be6c9 BH |
364 | if (!strcmp("smudge", ep)) |
365 | return git_config_string(&drv->smudge, var, value); | |
366 | ||
367 | if (!strcmp("clean", ep)) | |
368 | return git_config_string(&drv->clean, var, value); | |
aa4ed402 | 369 | |
aa4ed402 JH |
370 | return 0; |
371 | } | |
372 | ||
6073ee85 | 373 | static void setup_convert_check(struct git_attr_check *check) |
35ebfd6a JH |
374 | { |
375 | static struct git_attr *attr_crlf; | |
3fed15f5 | 376 | static struct git_attr *attr_ident; |
aa4ed402 | 377 | static struct git_attr *attr_filter; |
35ebfd6a | 378 | |
3fed15f5 | 379 | if (!attr_crlf) { |
35ebfd6a | 380 | attr_crlf = git_attr("crlf", 4); |
3fed15f5 | 381 | attr_ident = git_attr("ident", 5); |
aa4ed402 JH |
382 | attr_filter = git_attr("filter", 6); |
383 | user_convert_tail = &user_convert; | |
ef90d6d4 | 384 | git_config(read_convert_config, NULL); |
3fed15f5 JH |
385 | } |
386 | check[0].attr = attr_crlf; | |
387 | check[1].attr = attr_ident; | |
aa4ed402 | 388 | check[2].attr = attr_filter; |
3fed15f5 JH |
389 | } |
390 | ||
391 | static int count_ident(const char *cp, unsigned long size) | |
392 | { | |
393 | /* | |
af9b54bb | 394 | * "$Id: 0000000000000000000000000000000000000000 $" <=> "$Id$" |
3fed15f5 JH |
395 | */ |
396 | int cnt = 0; | |
397 | char ch; | |
398 | ||
399 | while (size) { | |
400 | ch = *cp++; | |
401 | size--; | |
402 | if (ch != '$') | |
403 | continue; | |
af9b54bb | 404 | if (size < 3) |
3fed15f5 | 405 | break; |
af9b54bb | 406 | if (memcmp("Id", cp, 2)) |
3fed15f5 | 407 | continue; |
af9b54bb AP |
408 | ch = cp[2]; |
409 | cp += 3; | |
410 | size -= 3; | |
3fed15f5 | 411 | if (ch == '$') |
af9b54bb | 412 | cnt++; /* $Id$ */ |
3fed15f5 JH |
413 | if (ch != ':') |
414 | continue; | |
415 | ||
416 | /* | |
af9b54bb | 417 | * "$Id: ... "; scan up to the closing dollar sign and discard. |
3fed15f5 JH |
418 | */ |
419 | while (size) { | |
420 | ch = *cp++; | |
421 | size--; | |
422 | if (ch == '$') { | |
423 | cnt++; | |
424 | break; | |
425 | } | |
426 | } | |
427 | } | |
428 | return cnt; | |
429 | } | |
430 | ||
5ecd293d PH |
431 | static int ident_to_git(const char *path, const char *src, size_t len, |
432 | struct strbuf *buf, int ident) | |
3fed15f5 | 433 | { |
5ecd293d | 434 | char *dst, *dollar; |
3fed15f5 | 435 | |
5ecd293d PH |
436 | if (!ident || !count_ident(src, len)) |
437 | return 0; | |
438 | ||
90d16ec0 PH |
439 | /* only grow if not in place */ |
440 | if (strbuf_avail(buf) + buf->len < len) | |
441 | strbuf_grow(buf, len - buf->len); | |
5ecd293d PH |
442 | dst = buf->buf; |
443 | for (;;) { | |
444 | dollar = memchr(src, '$', len); | |
445 | if (!dollar) | |
446 | break; | |
447 | memcpy(dst, src, dollar + 1 - src); | |
448 | dst += dollar + 1 - src; | |
449 | len -= dollar + 1 - src; | |
450 | src = dollar + 1; | |
451 | ||
452 | if (len > 3 && !memcmp(src, "Id:", 3)) { | |
453 | dollar = memchr(src + 3, '$', len - 3); | |
454 | if (!dollar) | |
455 | break; | |
af9b54bb AP |
456 | memcpy(dst, "Id$", 3); |
457 | dst += 3; | |
5ecd293d PH |
458 | len -= dollar + 1 - src; |
459 | src = dollar + 1; | |
3fed15f5 JH |
460 | } |
461 | } | |
5ecd293d PH |
462 | memcpy(dst, src, len); |
463 | strbuf_setlen(buf, dst + len - buf->buf); | |
464 | return 1; | |
3fed15f5 JH |
465 | } |
466 | ||
5ecd293d PH |
467 | static int ident_to_worktree(const char *path, const char *src, size_t len, |
468 | struct strbuf *buf, int ident) | |
3fed15f5 | 469 | { |
3fed15f5 | 470 | unsigned char sha1[20]; |
5ecd293d PH |
471 | char *to_free = NULL, *dollar; |
472 | int cnt; | |
3fed15f5 JH |
473 | |
474 | if (!ident) | |
5ecd293d | 475 | return 0; |
3fed15f5 | 476 | |
5ecd293d | 477 | cnt = count_ident(src, len); |
3fed15f5 | 478 | if (!cnt) |
5ecd293d | 479 | return 0; |
3fed15f5 | 480 | |
5ecd293d PH |
481 | /* are we "faking" in place editing ? */ |
482 | if (src == buf->buf) | |
b315c5c0 | 483 | to_free = strbuf_detach(buf, NULL); |
5ecd293d | 484 | hash_sha1_file(src, len, "blob", sha1); |
3fed15f5 | 485 | |
5ecd293d PH |
486 | strbuf_grow(buf, len + cnt * 43); |
487 | for (;;) { | |
488 | /* step 1: run to the next '$' */ | |
489 | dollar = memchr(src, '$', len); | |
490 | if (!dollar) | |
491 | break; | |
492 | strbuf_add(buf, src, dollar + 1 - src); | |
493 | len -= dollar + 1 - src; | |
494 | src = dollar + 1; | |
c23290d5 | 495 | |
5ecd293d PH |
496 | /* step 2: does it looks like a bit like Id:xxx$ or Id$ ? */ |
497 | if (len < 3 || memcmp("Id", src, 2)) | |
3fed15f5 JH |
498 | continue; |
499 | ||
5ecd293d PH |
500 | /* step 3: skip over Id$ or Id:xxxxx$ */ |
501 | if (src[2] == '$') { | |
502 | src += 3; | |
503 | len -= 3; | |
504 | } else if (src[2] == ':') { | |
505 | /* | |
506 | * It's possible that an expanded Id has crept its way into the | |
507 | * repository, we cope with that by stripping the expansion out | |
508 | */ | |
509 | dollar = memchr(src + 3, '$', len - 3); | |
510 | if (!dollar) { | |
511 | /* incomplete keyword, no more '$', so just quit the loop */ | |
512 | break; | |
513 | } | |
c23290d5 | 514 | |
5ecd293d PH |
515 | len -= dollar + 1 - src; |
516 | src = dollar + 1; | |
517 | } else { | |
518 | /* it wasn't a "Id$" or "Id:xxxx$" */ | |
519 | continue; | |
520 | } | |
c23290d5 | 521 | |
5ecd293d PH |
522 | /* step 4: substitute */ |
523 | strbuf_addstr(buf, "Id: "); | |
524 | strbuf_add(buf, sha1_to_hex(sha1), 40); | |
525 | strbuf_addstr(buf, " $"); | |
3fed15f5 | 526 | } |
5ecd293d | 527 | strbuf_add(buf, src, len); |
3fed15f5 | 528 | |
5ecd293d PH |
529 | free(to_free); |
530 | return 1; | |
35ebfd6a JH |
531 | } |
532 | ||
6073ee85 | 533 | static int git_path_check_crlf(const char *path, struct git_attr_check *check) |
35ebfd6a | 534 | { |
6073ee85 JH |
535 | const char *value = check->value; |
536 | ||
537 | if (ATTR_TRUE(value)) | |
538 | return CRLF_TEXT; | |
539 | else if (ATTR_FALSE(value)) | |
540 | return CRLF_BINARY; | |
541 | else if (ATTR_UNSET(value)) | |
542 | ; | |
543 | else if (!strcmp(value, "input")) | |
544 | return CRLF_INPUT; | |
163b9591 | 545 | return CRLF_GUESS; |
35ebfd6a JH |
546 | } |
547 | ||
aa4ed402 JH |
548 | static struct convert_driver *git_path_check_convert(const char *path, |
549 | struct git_attr_check *check) | |
550 | { | |
551 | const char *value = check->value; | |
552 | struct convert_driver *drv; | |
553 | ||
554 | if (ATTR_TRUE(value) || ATTR_FALSE(value) || ATTR_UNSET(value)) | |
555 | return NULL; | |
556 | for (drv = user_convert; drv; drv = drv->next) | |
557 | if (!strcmp(value, drv->name)) | |
558 | return drv; | |
559 | return NULL; | |
560 | } | |
561 | ||
3fed15f5 JH |
562 | static int git_path_check_ident(const char *path, struct git_attr_check *check) |
563 | { | |
564 | const char *value = check->value; | |
565 | ||
566 | return !!ATTR_TRUE(value); | |
567 | } | |
568 | ||
21e5ad50 SP |
569 | int convert_to_git(const char *path, const char *src, size_t len, |
570 | struct strbuf *dst, enum safe_crlf checksafe) | |
35ebfd6a | 571 | { |
aa4ed402 | 572 | struct git_attr_check check[3]; |
6073ee85 | 573 | int crlf = CRLF_GUESS; |
5ecd293d | 574 | int ident = 0, ret = 0; |
cd8be6c9 | 575 | const char *filter = NULL; |
6073ee85 JH |
576 | |
577 | setup_convert_check(check); | |
3fed15f5 | 578 | if (!git_checkattr(path, ARRAY_SIZE(check), check)) { |
aa4ed402 | 579 | struct convert_driver *drv; |
3fed15f5 JH |
580 | crlf = git_path_check_crlf(path, check + 0); |
581 | ident = git_path_check_ident(path, check + 1); | |
aa4ed402 JH |
582 | drv = git_path_check_convert(path, check + 2); |
583 | if (drv && drv->clean) | |
584 | filter = drv->clean; | |
3fed15f5 JH |
585 | } |
586 | ||
5ecd293d PH |
587 | ret |= apply_filter(path, src, len, dst, filter); |
588 | if (ret) { | |
589 | src = dst->buf; | |
590 | len = dst->len; | |
aa4ed402 | 591 | } |
21e5ad50 | 592 | ret |= crlf_to_git(path, src, len, dst, crlf, checksafe); |
5ecd293d PH |
593 | if (ret) { |
594 | src = dst->buf; | |
595 | len = dst->len; | |
6073ee85 | 596 | } |
5ecd293d | 597 | return ret | ident_to_git(path, src, len, dst, ident); |
35ebfd6a JH |
598 | } |
599 | ||
5ecd293d | 600 | int convert_to_working_tree(const char *path, const char *src, size_t len, struct strbuf *dst) |
35ebfd6a | 601 | { |
aa4ed402 | 602 | struct git_attr_check check[3]; |
6073ee85 | 603 | int crlf = CRLF_GUESS; |
5ecd293d | 604 | int ident = 0, ret = 0; |
cd8be6c9 | 605 | const char *filter = NULL; |
6073ee85 JH |
606 | |
607 | setup_convert_check(check); | |
3fed15f5 | 608 | if (!git_checkattr(path, ARRAY_SIZE(check), check)) { |
aa4ed402 | 609 | struct convert_driver *drv; |
3fed15f5 JH |
610 | crlf = git_path_check_crlf(path, check + 0); |
611 | ident = git_path_check_ident(path, check + 1); | |
aa4ed402 JH |
612 | drv = git_path_check_convert(path, check + 2); |
613 | if (drv && drv->smudge) | |
614 | filter = drv->smudge; | |
6073ee85 | 615 | } |
3fed15f5 | 616 | |
5ecd293d PH |
617 | ret |= ident_to_worktree(path, src, len, dst, ident); |
618 | if (ret) { | |
619 | src = dst->buf; | |
620 | len = dst->len; | |
3fed15f5 | 621 | } |
5ecd293d PH |
622 | ret |= crlf_to_worktree(path, src, len, dst, crlf); |
623 | if (ret) { | |
624 | src = dst->buf; | |
625 | len = dst->len; | |
aa4ed402 | 626 | } |
5ecd293d | 627 | return ret | apply_filter(path, src, len, dst, filter); |
35ebfd6a | 628 | } |