]>
Commit | Line | Data |
---|---|---|
bb742ede | 1 | /* |
359fc2d2 | 2 | * Copyright (C) the libgit2 contributors. All rights reserved. |
bb742ede VM |
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 | */ | |
5ee2fe77 | 7 | #include "common.h" |
ec250c6e | 8 | #include "fileops.h" |
a3aa5f4d | 9 | #include "global.h" |
500ec543 | 10 | #include "strmap.h" |
2e29957a | 11 | #include <ctype.h> |
997579be SS |
12 | #if GIT_WIN32 |
13 | #include "win32/findfile.h" | |
14 | #endif | |
ec250c6e | 15 | |
ce8cd006 | 16 | int git_futils_mkpath2file(const char *file_path, const mode_t mode) |
55ffebe3 | 17 | { |
ca1b6e54 | 18 | return git_futils_mkdir( |
ac2fba0e | 19 | file_path, mode, |
331e7de9 | 20 | GIT_MKDIR_PATH | GIT_MKDIR_SKIP_LAST | GIT_MKDIR_VERIFY_DIR); |
55ffebe3 VM |
21 | } |
22 | ||
1d3a8aeb | 23 | int git_futils_mktmp(git_buf *path_out, const char *filename, mode_t mode) |
72a3fe42 VM |
24 | { |
25 | int fd; | |
1d3a8aeb ET |
26 | mode_t mask; |
27 | ||
28 | p_umask(mask = p_umask(0)); | |
72a3fe42 | 29 | |
97769280 RB |
30 | git_buf_sets(path_out, filename); |
31 | git_buf_puts(path_out, "_git2_XXXXXX"); | |
32 | ||
33 | if (git_buf_oom(path_out)) | |
1a481123 | 34 | return -1; |
72a3fe42 | 35 | |
1a481123 VM |
36 | if ((fd = p_mkstemp(path_out->ptr)) < 0) { |
37 | giterr_set(GITERR_OS, | |
909d5494 | 38 | "failed to create temporary file '%s'", path_out->ptr); |
1a481123 VM |
39 | return -1; |
40 | } | |
72a3fe42 | 41 | |
1d3a8aeb ET |
42 | if (p_chmod(path_out->ptr, (mode & ~mask))) { |
43 | giterr_set(GITERR_OS, | |
909d5494 | 44 | "failed to set permissions on file '%s'", path_out->ptr); |
1d3a8aeb ET |
45 | return -1; |
46 | } | |
47 | ||
f978b748 | 48 | return fd; |
72a3fe42 VM |
49 | } |
50 | ||
ce8cd006 | 51 | int git_futils_creat_withpath(const char *path, const mode_t dirmode, const mode_t mode) |
7dd8a9f7 | 52 | { |
1a481123 | 53 | int fd; |
55ffebe3 | 54 | |
1a481123 VM |
55 | if (git_futils_mkpath2file(path, dirmode) < 0) |
56 | return -1; | |
57 | ||
58 | fd = p_creat(path, mode); | |
59 | if (fd < 0) { | |
909d5494 | 60 | giterr_set(GITERR_OS, "failed to create file '%s'", path); |
1a481123 VM |
61 | return -1; |
62 | } | |
63 | ||
64 | return fd; | |
55ffebe3 VM |
65 | } |
66 | ||
33127043 | 67 | int git_futils_creat_locked(const char *path, const mode_t mode) |
1549cba9 | 68 | { |
13f36ffb | 69 | int fd = p_open(path, O_WRONLY | O_CREAT | O_TRUNC | |
3d3ea4dc | 70 | O_EXCL | O_BINARY | O_CLOEXEC, mode); |
09719c50 | 71 | |
1a481123 | 72 | if (fd < 0) { |
f94825c1 | 73 | int error = errno; |
909d5494 | 74 | giterr_set(GITERR_OS, "failed to create locked file '%s'", path); |
f94825c1 CMN |
75 | switch (error) { |
76 | case EEXIST: | |
77 | return GIT_ELOCKED; | |
78 | case ENOENT: | |
79 | return GIT_ENOTFOUND; | |
80 | default: | |
81 | return -1; | |
82 | } | |
1a481123 VM |
83 | } |
84 | ||
85 | return fd; | |
1549cba9 RG |
86 | } |
87 | ||
ce8cd006 | 88 | int git_futils_creat_locked_withpath(const char *path, const mode_t dirmode, const mode_t mode) |
1549cba9 | 89 | { |
1a481123 VM |
90 | if (git_futils_mkpath2file(path, dirmode) < 0) |
91 | return -1; | |
1549cba9 | 92 | |
f79026b4 | 93 | return git_futils_creat_locked(path, mode); |
ec250c6e AE |
94 | } |
95 | ||
deafee7b RB |
96 | int git_futils_open_ro(const char *path) |
97 | { | |
98 | int fd = p_open(path, O_RDONLY); | |
14997dc5 RB |
99 | if (fd < 0) |
100 | return git_path_set_error(errno, path, "open"); | |
deafee7b RB |
101 | return fd; |
102 | } | |
103 | ||
f79026b4 | 104 | git_off_t git_futils_filesize(git_file fd) |
ec250c6e | 105 | { |
7dd8a9f7 | 106 | struct stat sb; |
deafee7b RB |
107 | |
108 | if (p_fstat(fd, &sb)) { | |
909d5494 | 109 | giterr_set(GITERR_OS, "failed to stat file descriptor"); |
deafee7b RB |
110 | return -1; |
111 | } | |
5ad739e8 | 112 | |
ec250c6e AE |
113 | return sb.st_size; |
114 | } | |
4188d28f | 115 | |
b6c93aef RB |
116 | mode_t git_futils_canonical_mode(mode_t raw_mode) |
117 | { | |
118 | if (S_ISREG(raw_mode)) | |
f240acce | 119 | return S_IFREG | GIT_PERMS_CANONICAL(raw_mode); |
b6c93aef RB |
120 | else if (S_ISLNK(raw_mode)) |
121 | return S_IFLNK; | |
b6c93aef RB |
122 | else if (S_ISGITLINK(raw_mode)) |
123 | return S_IFGITLINK; | |
7c7ff7d1 RB |
124 | else if (S_ISDIR(raw_mode)) |
125 | return S_IFDIR; | |
b6c93aef RB |
126 | else |
127 | return 0; | |
128 | } | |
129 | ||
60b9d3fc RB |
130 | int git_futils_readbuffer_fd(git_buf *buf, git_file fd, size_t len) |
131 | { | |
de590550 | 132 | ssize_t read_size = 0; |
f1453c59 | 133 | size_t alloc_len; |
60b9d3fc RB |
134 | |
135 | git_buf_clear(buf); | |
136 | ||
8d534b47 | 137 | if (!git__is_ssizet(len)) { |
909d5494 | 138 | giterr_set(GITERR_INVALID, "read too large"); |
8d534b47 ET |
139 | return -1; |
140 | } | |
141 | ||
f1453c59 ET |
142 | GITERR_CHECK_ALLOC_ADD(&alloc_len, len, 1); |
143 | if (git_buf_grow(buf, alloc_len) < 0) | |
60b9d3fc RB |
144 | return -1; |
145 | ||
1f35e89d RB |
146 | /* p_read loops internally to read len bytes */ |
147 | read_size = p_read(fd, buf->ptr, len); | |
60b9d3fc | 148 | |
c859184b | 149 | if (read_size != (ssize_t)len) { |
909d5494 | 150 | giterr_set(GITERR_OS, "failed to read descriptor"); |
823c0e9c | 151 | git_buf_free(buf); |
1f35e89d | 152 | return -1; |
60b9d3fc RB |
153 | } |
154 | ||
1f35e89d RB |
155 | buf->ptr[read_size] = '\0'; |
156 | buf->size = read_size; | |
157 | ||
60b9d3fc RB |
158 | return 0; |
159 | } | |
160 | ||
161 | int git_futils_readbuffer_updated( | |
3547b122 | 162 | git_buf *out, const char *path, git_oid *checksum, int *updated) |
75d58430 | 163 | { |
eb597799 | 164 | int error; |
75d58430 | 165 | git_file fd; |
c3da9f06 | 166 | struct stat st; |
3547b122 | 167 | git_buf buf = GIT_BUF_INIT; |
eb597799 | 168 | git_oid checksum_new; |
75d58430 | 169 | |
3547b122 | 170 | assert(out && path && *path); |
75d58430 | 171 | |
c3da9f06 CMN |
172 | if (updated != NULL) |
173 | *updated = 0; | |
75d58430 | 174 | |
14997dc5 RB |
175 | if (p_stat(path, &st) < 0) |
176 | return git_path_set_error(errno, path, "stat"); | |
c3da9f06 | 177 | |
7c9f5bec CMN |
178 | |
179 | if (S_ISDIR(st.st_mode)) { | |
180 | giterr_set(GITERR_INVALID, "requested file is a directory"); | |
181 | return GIT_ENOTFOUND; | |
182 | } | |
183 | ||
184 | if (!git__is_sizet(st.st_size+1)) { | |
909d5494 | 185 | giterr_set(GITERR_OS, "invalid regular file stat for '%s'", path); |
1a481123 | 186 | return -1; |
13224ea4 | 187 | } |
c3da9f06 | 188 | |
9ccdb211 BR |
189 | if ((fd = git_futils_open_ro(path)) < 0) |
190 | return fd; | |
191 | ||
3547b122 | 192 | if (git_futils_readbuffer_fd(&buf, fd, (size_t)st.st_size) < 0) { |
e1de726c RB |
193 | p_close(fd); |
194 | return -1; | |
75d58430 RJ |
195 | } |
196 | ||
f79026b4 | 197 | p_close(fd); |
75d58430 | 198 | |
3547b122 CMN |
199 | if ((error = git_hash_buf(&checksum_new, buf.ptr, buf.size)) < 0) { |
200 | git_buf_free(&buf); | |
eb597799 CMN |
201 | return error; |
202 | } | |
203 | ||
204 | /* | |
205 | * If we were given a checksum, we only want to use it if it's different | |
206 | */ | |
207 | if (checksum && !git_oid__cmp(checksum, &checksum_new)) { | |
3547b122 | 208 | git_buf_free(&buf); |
eb597799 CMN |
209 | if (updated) |
210 | *updated = 0; | |
211 | ||
212 | return 0; | |
213 | } | |
214 | ||
215 | /* | |
216 | * If we're here, the file did change, or the user didn't have an old version | |
217 | */ | |
218 | if (checksum) | |
219 | git_oid_cpy(checksum, &checksum_new); | |
220 | ||
c3da9f06 CMN |
221 | if (updated != NULL) |
222 | *updated = 1; | |
223 | ||
3547b122 CMN |
224 | git_buf_swap(out, &buf); |
225 | git_buf_free(&buf); | |
226 | ||
13224ea4 | 227 | return 0; |
c3da9f06 CMN |
228 | } |
229 | ||
13224ea4 | 230 | int git_futils_readbuffer(git_buf *buf, const char *path) |
97769280 | 231 | { |
eb597799 | 232 | return git_futils_readbuffer_updated(buf, path, NULL, NULL); |
97769280 RB |
233 | } |
234 | ||
4742148d RB |
235 | int git_futils_writebuffer( |
236 | const git_buf *buf, const char *path, int flags, mode_t mode) | |
237 | { | |
5312621b ET |
238 | int fd, do_fsync = 0, error = 0; |
239 | ||
5a747e0c ET |
240 | if (!flags) |
241 | flags = O_CREAT | O_TRUNC | O_WRONLY; | |
242 | ||
5312621b ET |
243 | if ((flags & O_FSYNC) != 0) |
244 | do_fsync = 1; | |
245 | ||
246 | flags &= ~O_FSYNC; | |
4742148d | 247 | |
4742148d RB |
248 | if (!mode) |
249 | mode = GIT_FILEMODE_BLOB; | |
250 | ||
251 | if ((fd = p_open(path, flags, mode)) < 0) { | |
909d5494 | 252 | giterr_set(GITERR_OS, "could not open '%s' for writing", path); |
4742148d RB |
253 | return fd; |
254 | } | |
255 | ||
256 | if ((error = p_write(fd, git_buf_cstr(buf), git_buf_len(buf))) < 0) { | |
909d5494 | 257 | giterr_set(GITERR_OS, "could not write to '%s'", path); |
4742148d | 258 | (void)p_close(fd); |
f5254d78 | 259 | return error; |
4742148d RB |
260 | } |
261 | ||
5312621b ET |
262 | if (do_fsync && (error = p_fsync(fd)) < 0) { |
263 | giterr_set(GITERR_OS, "could not fsync '%s'", path); | |
264 | p_close(fd); | |
265 | return error; | |
266 | } | |
267 | ||
1229e1c4 | 268 | if ((error = p_close(fd)) < 0) { |
909d5494 | 269 | giterr_set(GITERR_OS, "error while closing '%s'", path); |
1229e1c4 ET |
270 | return error; |
271 | } | |
272 | ||
273 | if (do_fsync && (flags & O_CREAT)) | |
274 | error = git_futils_fsync_parent(path); | |
4742148d RB |
275 | |
276 | return error; | |
277 | } | |
278 | ||
ce8cd006 | 279 | int git_futils_mv_withpath(const char *from, const char *to, const mode_t dirmode) |
19a30a3f | 280 | { |
deafee7b RB |
281 | if (git_futils_mkpath2file(to, dirmode) < 0) |
282 | return -1; | |
19a30a3f | 283 | |
deafee7b | 284 | if (p_rename(from, to) < 0) { |
909d5494 | 285 | giterr_set(GITERR_OS, "failed to rename '%s' to '%s'", from, to); |
deafee7b RB |
286 | return -1; |
287 | } | |
288 | ||
289 | return 0; | |
19a30a3f VM |
290 | } |
291 | ||
f79026b4 | 292 | int git_futils_mmap_ro(git_map *out, git_file fd, git_off_t begin, size_t len) |
20e7f426 | 293 | { |
f79026b4 | 294 | return p_mmap(out, len, GIT_PROT_READ, GIT_MAP_SHARED, fd, begin); |
20e7f426 SP |
295 | } |
296 | ||
74fa4bfa RB |
297 | int git_futils_mmap_ro_file(git_map *out, const char *path) |
298 | { | |
0d0fa7c3 RB |
299 | git_file fd = git_futils_open_ro(path); |
300 | git_off_t len; | |
da9abdd6 | 301 | int result; |
0d0fa7c3 RB |
302 | |
303 | if (fd < 0) | |
304 | return fd; | |
305 | ||
306 | len = git_futils_filesize(fd); | |
deafee7b | 307 | if (!git__is_sizet(len)) { |
909d5494 | 308 | giterr_set(GITERR_OS, "file `%s` too large to mmap", path); |
deafee7b RB |
309 | return -1; |
310 | } | |
0d0fa7c3 | 311 | |
da9abdd6 | 312 | result = git_futils_mmap_ro(out, fd, 0, (size_t)len); |
74fa4bfa RB |
313 | p_close(fd); |
314 | return result; | |
315 | } | |
316 | ||
f79026b4 | 317 | void git_futils_mmap_free(git_map *out) |
20e7f426 | 318 | { |
f79026b4 | 319 | p_munmap(out); |
20e7f426 SP |
320 | } |
321 | ||
81aaf370 ET |
322 | GIT_INLINE(int) mkdir_validate_dir( |
323 | const char *path, | |
e74340b0 ET |
324 | struct stat *st, |
325 | mode_t mode, | |
326 | uint32_t flags, | |
81aaf370 | 327 | struct git_futils_mkdir_options *opts) |
e74340b0 | 328 | { |
81aaf370 ET |
329 | /* with exclusive create, existing dir is an error */ |
330 | if ((flags & GIT_MKDIR_EXCL) != 0) { | |
331 | giterr_set(GITERR_FILESYSTEM, | |
909d5494 | 332 | "failed to make directory '%s': directory exists", path); |
81aaf370 ET |
333 | return GIT_EEXISTS; |
334 | } | |
335 | ||
e74340b0 ET |
336 | if ((S_ISREG(st->st_mode) && (flags & GIT_MKDIR_REMOVE_FILES)) || |
337 | (S_ISLNK(st->st_mode) && (flags & GIT_MKDIR_REMOVE_SYMLINKS))) { | |
81aaf370 | 338 | if (p_unlink(path) < 0) { |
909d5494 | 339 | giterr_set(GITERR_OS, "failed to remove %s '%s'", |
81aaf370 | 340 | S_ISLNK(st->st_mode) ? "symlink" : "file", path); |
e74340b0 ET |
341 | return GIT_EEXISTS; |
342 | } | |
343 | ||
81aaf370 | 344 | opts->perfdata.mkdir_calls++; |
e74340b0 | 345 | |
81aaf370 | 346 | if (p_mkdir(path, mode) < 0) { |
909d5494 | 347 | giterr_set(GITERR_OS, "failed to make directory '%s'", path); |
e74340b0 ET |
348 | return GIT_EEXISTS; |
349 | } | |
350 | } | |
351 | ||
352 | else if (S_ISLNK(st->st_mode)) { | |
353 | /* Re-stat the target, make sure it's a directory */ | |
81aaf370 | 354 | opts->perfdata.stat_calls++; |
e74340b0 | 355 | |
81aaf370 | 356 | if (p_stat(path, st) < 0) { |
909d5494 | 357 | giterr_set(GITERR_OS, "failed to make directory '%s'", path); |
e74340b0 ET |
358 | return GIT_EEXISTS; |
359 | } | |
360 | } | |
361 | ||
362 | else if (!S_ISDIR(st->st_mode)) { | |
363 | giterr_set(GITERR_FILESYSTEM, | |
909d5494 | 364 | "failed to make directory '%s': directory exists", path); |
e74340b0 ET |
365 | return GIT_EEXISTS; |
366 | } | |
367 | ||
368 | return 0; | |
369 | } | |
370 | ||
81aaf370 ET |
371 | GIT_INLINE(int) mkdir_validate_mode( |
372 | const char *path, | |
373 | struct stat *st, | |
374 | bool terminal_path, | |
375 | mode_t mode, | |
376 | uint32_t flags, | |
377 | struct git_futils_mkdir_options *opts) | |
378 | { | |
379 | if (((terminal_path && (flags & GIT_MKDIR_CHMOD) != 0) || | |
380 | (flags & GIT_MKDIR_CHMOD_PATH) != 0) && st->st_mode != mode) { | |
381 | ||
382 | opts->perfdata.chmod_calls++; | |
383 | ||
384 | if (p_chmod(path, mode) < 0) { | |
385 | giterr_set(GITERR_OS, "failed to set permissions on '%s'", path); | |
386 | return -1; | |
387 | } | |
388 | } | |
389 | ||
390 | return 0; | |
391 | } | |
28cdb315 | 392 | |
e24c60db ET |
393 | GIT_INLINE(int) mkdir_canonicalize( |
394 | git_buf *path, | |
395 | uint32_t flags) | |
1a5204a7 | 396 | { |
e24c60db | 397 | ssize_t root_len; |
ac2fba0e | 398 | |
e24c60db ET |
399 | if (path->size == 0) { |
400 | giterr_set(GITERR_OS, "attempt to create empty path"); | |
ca1b6e54 | 401 | return -1; |
97769280 | 402 | } |
f0b2bfe5 | 403 | |
9cb5b0f7 | 404 | /* Trim trailing slashes (except the root) */ |
e24c60db | 405 | if ((root_len = git_path_root(path->ptr)) < 0) |
9cb5b0f7 ET |
406 | root_len = 0; |
407 | else | |
408 | root_len++; | |
409 | ||
e24c60db ET |
410 | while (path->size > (size_t)root_len && path->ptr[path->size - 1] == '/') |
411 | path->ptr[--path->size] = '\0'; | |
412de9a6 | 412 | |
ca1b6e54 | 413 | /* if we are not supposed to made the last element, truncate it */ |
3c42e4ef | 414 | if ((flags & GIT_MKDIR_SKIP_LAST2) != 0) { |
e24c60db | 415 | git_path_dirname_r(path, path->ptr); |
3c42e4ef RB |
416 | flags |= GIT_MKDIR_SKIP_LAST; |
417 | } | |
9cb5b0f7 | 418 | if ((flags & GIT_MKDIR_SKIP_LAST) != 0) { |
e24c60db | 419 | git_path_dirname_r(path, path->ptr); |
9cb5b0f7 | 420 | } |
ca1b6e54 | 421 | |
9cb5b0f7 | 422 | /* We were either given the root path (or trimmed it to |
e24c60db ET |
423 | * the root), we don't have anything to do. |
424 | */ | |
425 | if (path->size <= (size_t)root_len) | |
426 | git_buf_clear(path); | |
427 | ||
428 | return 0; | |
429 | } | |
430 | ||
431 | int git_futils_mkdir( | |
432 | const char *path, | |
433 | mode_t mode, | |
434 | uint32_t flags) | |
435 | { | |
436 | git_buf make_path = GIT_BUF_INIT, parent_path = GIT_BUF_INIT; | |
437 | const char *relative; | |
438 | struct git_futils_mkdir_options opts = { 0 }; | |
439 | struct stat st; | |
440 | size_t depth = 0; | |
9ce2e7b3 | 441 | int len = 0, root_len, error; |
e24c60db ET |
442 | |
443 | if ((error = git_buf_puts(&make_path, path)) < 0 || | |
444 | (error = mkdir_canonicalize(&make_path, flags)) < 0 || | |
445 | (error = git_buf_puts(&parent_path, make_path.ptr)) < 0 || | |
446 | make_path.size == 0) | |
447 | goto done; | |
448 | ||
9ce2e7b3 ET |
449 | root_len = git_path_root(make_path.ptr); |
450 | ||
e24c60db ET |
451 | /* find the first parent directory that exists. this will be used |
452 | * as the base to dirname_relative. | |
9cb5b0f7 | 453 | */ |
e24c60db ET |
454 | for (relative = make_path.ptr; parent_path.size; ) { |
455 | error = p_lstat(parent_path.ptr, &st); | |
456 | ||
457 | if (error == 0) { | |
458 | break; | |
459 | } else if (errno != ENOENT) { | |
460 | giterr_set(GITERR_OS, "failed to stat '%s'", parent_path.ptr); | |
461 | goto done; | |
462 | } | |
463 | ||
464 | depth++; | |
465 | ||
466 | /* examine the parent of the current path */ | |
467 | if ((len = git_path_dirname_r(&parent_path, parent_path.ptr)) < 0) { | |
468 | error = len; | |
469 | goto done; | |
470 | } | |
471 | ||
472 | assert(len); | |
473 | ||
474 | /* we've walked all the given path's parents and it's either relative | |
475 | * or rooted. either way, give up and make the entire path. | |
476 | */ | |
9ce2e7b3 | 477 | if ((len == 1 && parent_path.ptr[0] == '.') || len == root_len+1) { |
e24c60db ET |
478 | relative = make_path.ptr; |
479 | break; | |
480 | } | |
481 | ||
482 | relative = make_path.ptr + len + 1; | |
483 | ||
484 | /* not recursive? just make this directory relative to its parent. */ | |
485 | if ((flags & GIT_MKDIR_PATH) == 0) | |
486 | break; | |
487 | } | |
488 | ||
489 | /* we found an item at the location we're trying to create, | |
490 | * validate it. | |
491 | */ | |
492 | if (depth == 0) { | |
81aaf370 | 493 | error = mkdir_validate_dir(make_path.ptr, &st, mode, flags, &opts); |
e24c60db | 494 | |
81aaf370 ET |
495 | if (!error) |
496 | error = mkdir_validate_mode( | |
497 | make_path.ptr, &st, true, mode, flags, &opts); | |
e24c60db | 498 | |
f7e56150 RB |
499 | goto done; |
500 | } | |
501 | ||
e24c60db ET |
502 | /* we already took `SKIP_LAST` and `SKIP_LAST2` into account when |
503 | * canonicalizing `make_path`. | |
504 | */ | |
505 | flags &= ~(GIT_MKDIR_SKIP_LAST2 | GIT_MKDIR_SKIP_LAST); | |
506 | ||
507 | error = git_futils_mkdir_relative(relative, | |
508 | parent_path.size ? parent_path.ptr : NULL, mode, flags, &opts); | |
509 | ||
510 | done: | |
511 | git_buf_free(&make_path); | |
512 | git_buf_free(&parent_path); | |
513 | return error; | |
514 | } | |
515 | ||
516 | int git_futils_mkdir_r(const char *path, const mode_t mode) | |
517 | { | |
518 | return git_futils_mkdir(path, mode, GIT_MKDIR_PATH); | |
519 | } | |
520 | ||
521 | int git_futils_mkdir_relative( | |
522 | const char *relative_path, | |
523 | const char *base, | |
524 | mode_t mode, | |
525 | uint32_t flags, | |
526 | struct git_futils_mkdir_options *opts) | |
527 | { | |
528 | git_buf make_path = GIT_BUF_INIT; | |
529 | ssize_t root = 0, min_root_len; | |
530 | char lastch = '/', *tail; | |
531 | struct stat st; | |
532 | struct git_futils_mkdir_options empty_opts = {0}; | |
533 | int error; | |
534 | ||
535 | if (!opts) | |
536 | opts = &empty_opts; | |
537 | ||
538 | /* build path and find "root" where we should start calling mkdir */ | |
539 | if (git_path_join_unrooted(&make_path, relative_path, base, &root) < 0) | |
540 | return -1; | |
541 | ||
542 | if ((error = mkdir_canonicalize(&make_path, flags)) < 0 || | |
543 | make_path.size == 0) | |
544 | goto done; | |
545 | ||
ca1b6e54 RB |
546 | /* if we are not supposed to make the whole path, reset root */ |
547 | if ((flags & GIT_MKDIR_PATH) == 0) | |
548 | root = git_buf_rfind(&make_path, '/'); | |
549 | ||
f7e56150 RB |
550 | /* advance root past drive name or network mount prefix */ |
551 | min_root_len = git_path_root(make_path.ptr); | |
552 | if (root < min_root_len) | |
553 | root = min_root_len; | |
2da72fb2 | 554 | while (root >= 0 && make_path.ptr[root] == '/') |
f7e56150 RB |
555 | ++root; |
556 | ||
ca1b6e54 | 557 | /* clip root to make_path length */ |
f7e56150 RB |
558 | if (root > (ssize_t)make_path.size) |
559 | root = (ssize_t)make_path.size; /* i.e. NUL byte of string */ | |
0e26202c RB |
560 | if (root < 0) |
561 | root = 0; | |
ca1b6e54 | 562 | |
f7e56150 RB |
563 | /* walk down tail of path making each directory */ |
564 | for (tail = &make_path.ptr[root]; *tail; *tail = lastch) { | |
d88e6e9b | 565 | bool mkdir_attempted = false; |
999d4405 | 566 | |
ca1b6e54 RB |
567 | /* advance tail to include next path component */ |
568 | while (*tail == '/') | |
569 | tail++; | |
570 | while (*tail && *tail != '/') | |
571 | tail++; | |
572 | ||
573 | /* truncate path at next component */ | |
574 | lastch = *tail; | |
575 | *tail = '\0'; | |
999d4405 | 576 | st.st_mode = 0; |
ca1b6e54 | 577 | |
500ec543 ET |
578 | if (opts->dir_map && git_strmap_exists(opts->dir_map, make_path.ptr)) |
579 | continue; | |
580 | ||
fe598f09 | 581 | /* See what's going on with this path component */ |
500ec543 | 582 | opts->perfdata.stat_calls++; |
1d50b364 | 583 | |
d88e6e9b | 584 | retry_lstat: |
fe598f09 | 585 | if (p_lstat(make_path.ptr, &st) < 0) { |
d88e6e9b | 586 | if (mkdir_attempted || errno != ENOENT) { |
909d5494 | 587 | giterr_set(GITERR_OS, "cannot access component in path '%s'", make_path.ptr); |
d88e6e9b | 588 | error = -1; |
fe598f09 ET |
589 | goto done; |
590 | } | |
591 | ||
592 | giterr_clear(); | |
d88e6e9b VM |
593 | opts->perfdata.mkdir_calls++; |
594 | mkdir_attempted = true; | |
595 | if (p_mkdir(make_path.ptr, mode) < 0) { | |
596 | if (errno == EEXIST) | |
597 | goto retry_lstat; | |
909d5494 | 598 | giterr_set(GITERR_OS, "failed to make directory '%s'", make_path.ptr); |
d88e6e9b VM |
599 | error = -1; |
600 | goto done; | |
601 | } | |
fe598f09 | 602 | } else { |
81aaf370 ET |
603 | if ((error = mkdir_validate_dir( |
604 | make_path.ptr, &st, mode, flags, opts)) < 0) | |
fe598f09 | 605 | goto done; |
d5f25204 | 606 | } |
40c44d2f | 607 | |
999d4405 | 608 | /* chmod if requested and necessary */ |
81aaf370 ET |
609 | if ((error = mkdir_validate_mode( |
610 | make_path.ptr, &st, (lastch == '\0'), mode, flags, opts)) < 0) | |
611 | goto done; | |
500ec543 ET |
612 | |
613 | if (opts->dir_map && opts->pool) { | |
f1453c59 ET |
614 | char *cache_path; |
615 | size_t alloc_size; | |
616 | ||
617 | GITERR_CHECK_ALLOC_ADD(&alloc_size, make_path.size, 1); | |
618 | if (!git__is_uint32(alloc_size)) | |
619 | return -1; | |
620 | cache_path = git_pool_malloc(opts->pool, (uint32_t)alloc_size); | |
500ec543 ET |
621 | GITERR_CHECK_ALLOC(cache_path); |
622 | ||
623 | memcpy(cache_path, make_path.ptr, make_path.size + 1); | |
624 | ||
73028af8 | 625 | git_strmap_insert(opts->dir_map, cache_path, cache_path, &error); |
500ec543 ET |
626 | if (error < 0) |
627 | goto done; | |
628 | } | |
a993e4fe | 629 | } |
40c44d2f | 630 | |
999d4405 RB |
631 | error = 0; |
632 | ||
633 | /* check that full path really is a directory if requested & needed */ | |
f7e56150 | 634 | if ((flags & GIT_MKDIR_VERIFY_DIR) != 0 && |
1d50b364 | 635 | lastch != '\0') { |
500ec543 | 636 | opts->perfdata.stat_calls++; |
1d50b364 ET |
637 | |
638 | if (p_stat(make_path.ptr, &st) < 0 || !S_ISDIR(st.st_mode)) { | |
909d5494 | 639 | giterr_set(GITERR_OS, "path is not a directory '%s'", |
e74340b0 | 640 | make_path.ptr); |
1d50b364 ET |
641 | error = GIT_ENOTFOUND; |
642 | } | |
999d4405 | 643 | } |
77c3999c | 644 | |
999d4405 | 645 | done: |
ca1b6e54 | 646 | git_buf_free(&make_path); |
331e7de9 | 647 | return error; |
ca1b6e54 | 648 | } |
77c3999c | 649 | |
331e7de9 | 650 | typedef struct { |
ad9a921b | 651 | const char *base; |
7e5c8a5b | 652 | size_t baselen; |
331e7de9 | 653 | uint32_t flags; |
219d3457 | 654 | int depth; |
331e7de9 RB |
655 | } futils__rmdir_data; |
656 | ||
219d3457 RB |
657 | #define FUTILS_MAX_DEPTH 100 |
658 | ||
331e7de9 | 659 | static int futils__error_cannot_rmdir(const char *path, const char *filemsg) |
42b3a460 | 660 | { |
331e7de9 | 661 | if (filemsg) |
909d5494 | 662 | giterr_set(GITERR_OS, "could not remove directory '%s': %s", |
331e7de9 RB |
663 | path, filemsg); |
664 | else | |
909d5494 | 665 | giterr_set(GITERR_OS, "could not remove directory '%s'", path); |
555aa453 | 666 | |
331e7de9 RB |
667 | return -1; |
668 | } | |
deafee7b | 669 | |
ad9a921b RB |
670 | static int futils__rm_first_parent(git_buf *path, const char *ceiling) |
671 | { | |
672 | int error = GIT_ENOTFOUND; | |
673 | struct stat st; | |
674 | ||
675 | while (error == GIT_ENOTFOUND) { | |
676 | git_buf_rtruncate_at_char(path, '/'); | |
677 | ||
678 | if (!path->size || git__prefixcmp(path->ptr, ceiling) != 0) | |
679 | error = 0; | |
cccacac5 | 680 | else if (p_lstat_posixly(path->ptr, &st) == 0) { |
ad9a921b RB |
681 | if (S_ISREG(st.st_mode) || S_ISLNK(st.st_mode)) |
682 | error = p_unlink(path->ptr); | |
683 | else if (!S_ISDIR(st.st_mode)) | |
684 | error = -1; /* fail to remove non-regular file */ | |
685 | } else if (errno != ENOTDIR) | |
686 | error = -1; | |
687 | } | |
688 | ||
689 | if (error) | |
690 | futils__error_cannot_rmdir(path->ptr, "cannot remove parent"); | |
691 | ||
692 | return error; | |
693 | } | |
694 | ||
331e7de9 RB |
695 | static int futils__rmdir_recurs_foreach(void *opaque, git_buf *path) |
696 | { | |
96869a4e | 697 | int error = 0; |
331e7de9 | 698 | futils__rmdir_data *data = opaque; |
14997dc5 | 699 | struct stat st; |
555aa453 | 700 | |
14997dc5 RB |
701 | if (data->depth > FUTILS_MAX_DEPTH) |
702 | error = futils__error_cannot_rmdir( | |
703 | path->ptr, "directory nesting too deep"); | |
219d3457 | 704 | |
14997dc5 | 705 | else if ((error = p_lstat_posixly(path->ptr, &st)) < 0) { |
ad9a921b | 706 | if (errno == ENOENT) |
14997dc5 | 707 | error = 0; |
ad9a921b RB |
708 | else if (errno == ENOTDIR) { |
709 | /* asked to remove a/b/c/d/e and a/b is a normal file */ | |
710 | if ((data->flags & GIT_RMDIR_REMOVE_BLOCKERS) != 0) | |
14997dc5 | 711 | error = futils__rm_first_parent(path, data->base); |
ad9a921b RB |
712 | else |
713 | futils__error_cannot_rmdir( | |
714 | path->ptr, "parent is not directory"); | |
715 | } | |
716 | else | |
14997dc5 | 717 | error = git_path_set_error(errno, path->ptr, "rmdir"); |
ad9a921b RB |
718 | } |
719 | ||
720 | else if (S_ISDIR(st.st_mode)) { | |
219d3457 RB |
721 | data->depth++; |
722 | ||
14997dc5 | 723 | error = git_path_direach(path, 0, futils__rmdir_recurs_foreach, data); |
219d3457 RB |
724 | |
725 | data->depth--; | |
726 | ||
96869a4e | 727 | if (error < 0) |
25e0b157 | 728 | return error; |
96869a4e | 729 | |
219d3457 | 730 | if (data->depth == 0 && (data->flags & GIT_RMDIR_SKIP_ROOT) != 0) |
25e0b157 | 731 | return error; |
331e7de9 | 732 | |
14997dc5 | 733 | if ((error = p_rmdir(path->ptr)) < 0) { |
331e7de9 | 734 | if ((data->flags & GIT_RMDIR_SKIP_NONEMPTY) != 0 && |
e09d18ee | 735 | (errno == ENOTEMPTY || errno == EEXIST || errno == EBUSY)) |
14997dc5 | 736 | error = 0; |
331e7de9 | 737 | else |
14997dc5 | 738 | error = git_path_set_error(errno, path->ptr, "rmdir"); |
deafee7b | 739 | } |
858dba58 VM |
740 | } |
741 | ||
331e7de9 | 742 | else if ((data->flags & GIT_RMDIR_REMOVE_FILES) != 0) { |
14997dc5 RB |
743 | if (p_unlink(path->ptr) < 0) |
744 | error = git_path_set_error(errno, path->ptr, "remove"); | |
deafee7b RB |
745 | } |
746 | ||
ad9a921b | 747 | else if ((data->flags & GIT_RMDIR_SKIP_NONEMPTY) == 0) |
14997dc5 | 748 | error = futils__error_cannot_rmdir(path->ptr, "still present"); |
555aa453 | 749 | |
25e0b157 | 750 | return error; |
331e7de9 RB |
751 | } |
752 | ||
bbb988a5 | 753 | static int futils__rmdir_empty_parent(void *opaque, const char *path) |
331e7de9 | 754 | { |
7e5c8a5b | 755 | futils__rmdir_data *data = opaque; |
96869a4e | 756 | int error = 0; |
7e5c8a5b | 757 | |
bbb988a5 | 758 | if (strlen(path) <= data->baselen) |
25e0b157 | 759 | error = GIT_ITEROVER; |
331e7de9 | 760 | |
bbb988a5 | 761 | else if (p_rmdir(path) < 0) { |
331e7de9 RB |
762 | int en = errno; |
763 | ||
764 | if (en == ENOENT || en == ENOTDIR) { | |
96869a4e | 765 | /* do nothing */ |
e09d18ee | 766 | } else if (en == ENOTEMPTY || en == EEXIST || en == EBUSY) { |
331e7de9 RB |
767 | error = GIT_ITEROVER; |
768 | } else { | |
bbb988a5 | 769 | error = git_path_set_error(errno, path, "rmdir"); |
331e7de9 RB |
770 | } |
771 | } | |
772 | ||
25e0b157 | 773 | return error; |
42b3a460 MS |
774 | } |
775 | ||
0d64bef9 | 776 | int git_futils_rmdir_r( |
331e7de9 | 777 | const char *path, const char *base, uint32_t flags) |
42b3a460 | 778 | { |
97769280 | 779 | int error; |
0d64bef9 | 780 | git_buf fullpath = GIT_BUF_INIT; |
96869a4e | 781 | futils__rmdir_data data; |
0d64bef9 RB |
782 | |
783 | /* build path and find "root" where we should start calling mkdir */ | |
784 | if (git_path_join_unrooted(&fullpath, path, base, NULL) < 0) | |
785 | return -1; | |
786 | ||
96869a4e | 787 | memset(&data, 0, sizeof(data)); |
7e5c8a5b RB |
788 | data.base = base ? base : ""; |
789 | data.baselen = base ? strlen(base) : 0; | |
790 | data.flags = flags; | |
331e7de9 RB |
791 | |
792 | error = futils__rmdir_recurs_foreach(&data, &fullpath); | |
793 | ||
794 | /* remove now-empty parents if requested */ | |
96869a4e | 795 | if (!error && (flags & GIT_RMDIR_EMPTY_PARENTS) != 0) |
331e7de9 RB |
796 | error = git_path_walk_up( |
797 | &fullpath, base, futils__rmdir_empty_parent, &data); | |
798 | ||
25e0b157 RB |
799 | if (error == GIT_ITEROVER) { |
800 | giterr_clear(); | |
96869a4e | 801 | error = 0; |
25e0b157 | 802 | } |
0d64bef9 RB |
803 | |
804 | git_buf_free(&fullpath); | |
97769280 | 805 | |
97769280 | 806 | return error; |
42b3a460 MS |
807 | } |
808 | ||
8651c10f BS |
809 | int git_futils_fake_symlink(const char *old, const char *new) |
810 | { | |
811 | int retcode = GIT_ERROR; | |
812 | int fd = git_futils_creat_withpath(new, 0755, 0644); | |
813 | if (fd >= 0) { | |
814 | retcode = p_write(fd, old, strlen(old)); | |
815 | p_close(fd); | |
816 | } | |
817 | return retcode; | |
818 | } | |
ca1b6e54 | 819 | |
85bd1746 | 820 | static int cp_by_fd(int ifd, int ofd, bool close_fd_when_done) |
ca1b6e54 RB |
821 | { |
822 | int error = 0; | |
7dd22538 | 823 | char buffer[FILEIO_BUFSIZE]; |
ca1b6e54 RB |
824 | ssize_t len = 0; |
825 | ||
826 | while (!error && (len = p_read(ifd, buffer, sizeof(buffer))) > 0) | |
827 | /* p_write() does not have the same semantics as write(). It loops | |
828 | * internally and will return 0 when it has completed writing. | |
829 | */ | |
830 | error = p_write(ofd, buffer, len); | |
831 | ||
832 | if (len < 0) { | |
909d5494 | 833 | giterr_set(GITERR_OS, "read error while copying file"); |
ca1b6e54 RB |
834 | error = (int)len; |
835 | } | |
836 | ||
edef91ee CMN |
837 | if (error < 0) |
838 | giterr_set(GITERR_OS, "write error while copying file"); | |
839 | ||
85bd1746 | 840 | if (close_fd_when_done) { |
ca1b6e54 RB |
841 | p_close(ifd); |
842 | p_close(ofd); | |
843 | } | |
844 | ||
845 | return error; | |
846 | } | |
847 | ||
85bd1746 | 848 | int git_futils_cp(const char *from, const char *to, mode_t filemode) |
ca1b6e54 RB |
849 | { |
850 | int ifd, ofd; | |
851 | ||
ca1b6e54 RB |
852 | if ((ifd = git_futils_open_ro(from)) < 0) |
853 | return ifd; | |
854 | ||
855 | if ((ofd = p_open(to, O_WRONLY | O_CREAT | O_EXCL, filemode)) < 0) { | |
ca1b6e54 | 856 | p_close(ifd); |
14997dc5 | 857 | return git_path_set_error(errno, to, "open for writing"); |
ca1b6e54 RB |
858 | } |
859 | ||
85bd1746 | 860 | return cp_by_fd(ifd, ofd, true); |
ca1b6e54 RB |
861 | } |
862 | ||
27051d4e | 863 | int git_futils_touch(const char *path, time_t *when) |
8f09a98e ET |
864 | { |
865 | struct p_timeval times[2]; | |
8f09a98e ET |
866 | int ret; |
867 | ||
27051d4e ET |
868 | times[0].tv_sec = times[1].tv_sec = when ? *when : time(NULL); |
869 | times[0].tv_usec = times[1].tv_usec = 0; | |
8f09a98e ET |
870 | |
871 | ret = p_utimes(path, times); | |
872 | ||
873 | return (ret < 0) ? git_path_set_error(errno, path, "touch") : 0; | |
874 | } | |
875 | ||
85bd1746 | 876 | static int cp_link(const char *from, const char *to, size_t link_size) |
ca1b6e54 RB |
877 | { |
878 | int error = 0; | |
879 | ssize_t read_len; | |
392702ee | 880 | char *link_data; |
f1453c59 | 881 | size_t alloc_size; |
392702ee | 882 | |
f1453c59 ET |
883 | GITERR_CHECK_ALLOC_ADD(&alloc_size, link_size, 1); |
884 | link_data = git__malloc(alloc_size); | |
ca1b6e54 RB |
885 | GITERR_CHECK_ALLOC(link_data); |
886 | ||
85bd1746 RB |
887 | read_len = p_readlink(from, link_data, link_size); |
888 | if (read_len != (ssize_t)link_size) { | |
909d5494 | 889 | giterr_set(GITERR_OS, "failed to read symlink data for '%s'", from); |
ca1b6e54 RB |
890 | error = -1; |
891 | } | |
892 | else { | |
893 | link_data[read_len] = '\0'; | |
894 | ||
895 | if (p_symlink(link_data, to) < 0) { | |
909d5494 | 896 | giterr_set(GITERR_OS, "could not symlink '%s' as '%s'", |
ca1b6e54 RB |
897 | link_data, to); |
898 | error = -1; | |
899 | } | |
900 | } | |
901 | ||
902 | git__free(link_data); | |
903 | return error; | |
904 | } | |
905 | ||
906 | typedef struct { | |
907 | const char *to_root; | |
908 | git_buf to; | |
909 | ssize_t from_prefix; | |
910 | uint32_t flags; | |
911 | uint32_t mkdir_flags; | |
912 | mode_t dirmode; | |
913 | } cp_r_info; | |
914 | ||
3c42e4ef RB |
915 | #define GIT_CPDIR__MKDIR_DONE_FOR_TO_ROOT (1u << 10) |
916 | ||
917 | static int _cp_r_mkdir(cp_r_info *info, git_buf *from) | |
918 | { | |
919 | int error = 0; | |
920 | ||
921 | /* create root directory the first time we need to create a directory */ | |
922 | if ((info->flags & GIT_CPDIR__MKDIR_DONE_FOR_TO_ROOT) == 0) { | |
923 | error = git_futils_mkdir( | |
ac2fba0e | 924 | info->to_root, info->dirmode, |
18f08264 | 925 | (info->flags & GIT_CPDIR_CHMOD_DIRS) ? GIT_MKDIR_CHMOD : 0); |
3c42e4ef RB |
926 | |
927 | info->flags |= GIT_CPDIR__MKDIR_DONE_FOR_TO_ROOT; | |
928 | } | |
929 | ||
930 | /* create directory with root as base to prevent excess chmods */ | |
931 | if (!error) | |
ac2fba0e | 932 | error = git_futils_mkdir_relative( |
3c42e4ef | 933 | from->ptr + info->from_prefix, info->to_root, |
ac2fba0e | 934 | info->dirmode, info->mkdir_flags, NULL); |
3c42e4ef RB |
935 | |
936 | return error; | |
937 | } | |
938 | ||
ca1b6e54 RB |
939 | static int _cp_r_callback(void *ref, git_buf *from) |
940 | { | |
3c42e4ef | 941 | int error = 0; |
ca1b6e54 RB |
942 | cp_r_info *info = ref; |
943 | struct stat from_st, to_st; | |
944 | bool exists = false; | |
945 | ||
946 | if ((info->flags & GIT_CPDIR_COPY_DOTFILES) == 0 && | |
947 | from->ptr[git_path_basename_offset(from)] == '.') | |
948 | return 0; | |
949 | ||
96869a4e RB |
950 | if ((error = git_buf_joinpath( |
951 | &info->to, info->to_root, from->ptr + info->from_prefix)) < 0) | |
25e0b157 | 952 | return error; |
ca1b6e54 | 953 | |
14997dc5 | 954 | if (!(error = git_path_lstat(info->to.ptr, &to_st))) |
ca1b6e54 | 955 | exists = true; |
14997dc5 | 956 | else if (error != GIT_ENOTFOUND) |
25e0b157 | 957 | return error; |
14997dc5 RB |
958 | else { |
959 | giterr_clear(); | |
960 | error = 0; | |
961 | } | |
ca1b6e54 | 962 | |
3c42e4ef | 963 | if ((error = git_path_lstat(from->ptr, &from_st)) < 0) |
25e0b157 | 964 | return error; |
ca1b6e54 RB |
965 | |
966 | if (S_ISDIR(from_st.st_mode)) { | |
ca1b6e54 RB |
967 | mode_t oldmode = info->dirmode; |
968 | ||
969 | /* if we are not chmod'ing, then overwrite dirmode */ | |
18f08264 | 970 | if ((info->flags & GIT_CPDIR_CHMOD_DIRS) == 0) |
ca1b6e54 RB |
971 | info->dirmode = from_st.st_mode; |
972 | ||
973 | /* make directory now if CREATE_EMPTY_DIRS is requested and needed */ | |
974 | if (!exists && (info->flags & GIT_CPDIR_CREATE_EMPTY_DIRS) != 0) | |
3c42e4ef | 975 | error = _cp_r_mkdir(info, from); |
ca1b6e54 RB |
976 | |
977 | /* recurse onto target directory */ | |
25e0b157 | 978 | if (!error && (!exists || S_ISDIR(to_st.st_mode))) |
219d3457 | 979 | error = git_path_direach(from, 0, _cp_r_callback, info); |
ca1b6e54 RB |
980 | |
981 | if (oldmode != 0) | |
982 | info->dirmode = oldmode; | |
983 | ||
25e0b157 | 984 | return error; |
ca1b6e54 RB |
985 | } |
986 | ||
987 | if (exists) { | |
988 | if ((info->flags & GIT_CPDIR_OVERWRITE) == 0) | |
989 | return 0; | |
990 | ||
991 | if (p_unlink(info->to.ptr) < 0) { | |
909d5494 | 992 | giterr_set(GITERR_OS, "cannot overwrite existing file '%s'", |
ca1b6e54 | 993 | info->to.ptr); |
25e0b157 | 994 | return GIT_EEXISTS; |
ca1b6e54 RB |
995 | } |
996 | } | |
997 | ||
998 | /* Done if this isn't a regular file or a symlink */ | |
999 | if (!S_ISREG(from_st.st_mode) && | |
1000 | (!S_ISLNK(from_st.st_mode) || | |
1001 | (info->flags & GIT_CPDIR_COPY_SYMLINKS) == 0)) | |
1002 | return 0; | |
1003 | ||
1004 | /* Make container directory on demand if needed */ | |
1005 | if ((info->flags & GIT_CPDIR_CREATE_EMPTY_DIRS) == 0 && | |
3c42e4ef | 1006 | (error = _cp_r_mkdir(info, from)) < 0) |
25e0b157 | 1007 | return error; |
ca1b6e54 RB |
1008 | |
1009 | /* make symlink or regular file */ | |
94f742ba | 1010 | if (info->flags & GIT_CPDIR_LINK_FILES) { |
54738368 CMN |
1011 | if ((error = p_link(from->ptr, info->to.ptr)) < 0) |
1012 | giterr_set(GITERR_OS, "failed to link '%s'", from->ptr); | |
94f742ba | 1013 | } else if (S_ISLNK(from_st.st_mode)) { |
3c42e4ef | 1014 | error = cp_link(from->ptr, info->to.ptr, (size_t)from_st.st_size); |
94f742ba | 1015 | } else { |
3c42e4ef RB |
1016 | mode_t usemode = from_st.st_mode; |
1017 | ||
18f08264 | 1018 | if ((info->flags & GIT_CPDIR_SIMPLE_TO_MODE) != 0) |
f240acce | 1019 | usemode = GIT_PERMS_FOR_WRITE(usemode); |
3c42e4ef RB |
1020 | |
1021 | error = git_futils_cp(from->ptr, info->to.ptr, usemode); | |
3c42e4ef RB |
1022 | } |
1023 | ||
25e0b157 | 1024 | return error; |
ca1b6e54 RB |
1025 | } |
1026 | ||
1027 | int git_futils_cp_r( | |
1028 | const char *from, | |
1029 | const char *to, | |
1030 | uint32_t flags, | |
1031 | mode_t dirmode) | |
1032 | { | |
1033 | int error; | |
1034 | git_buf path = GIT_BUF_INIT; | |
1035 | cp_r_info info; | |
1036 | ||
3c42e4ef | 1037 | if (git_buf_joinpath(&path, from, "") < 0) /* ensure trailing slash */ |
ca1b6e54 RB |
1038 | return -1; |
1039 | ||
96869a4e | 1040 | memset(&info, 0, sizeof(info)); |
ca1b6e54 RB |
1041 | info.to_root = to; |
1042 | info.flags = flags; | |
1043 | info.dirmode = dirmode; | |
1044 | info.from_prefix = path.size; | |
1045 | git_buf_init(&info.to, 0); | |
1046 | ||
1047 | /* precalculate mkdir flags */ | |
1048 | if ((flags & GIT_CPDIR_CREATE_EMPTY_DIRS) == 0) { | |
3c42e4ef RB |
1049 | /* if not creating empty dirs, then use mkdir to create the path on |
1050 | * demand right before files are copied. | |
1051 | */ | |
ca1b6e54 | 1052 | info.mkdir_flags = GIT_MKDIR_PATH | GIT_MKDIR_SKIP_LAST; |
18f08264 | 1053 | if ((flags & GIT_CPDIR_CHMOD_DIRS) != 0) |
ca1b6e54 RB |
1054 | info.mkdir_flags |= GIT_MKDIR_CHMOD_PATH; |
1055 | } else { | |
3c42e4ef | 1056 | /* otherwise, we will do simple mkdir as directories are encountered */ |
ca1b6e54 | 1057 | info.mkdir_flags = |
18f08264 | 1058 | ((flags & GIT_CPDIR_CHMOD_DIRS) != 0) ? GIT_MKDIR_CHMOD : 0; |
ca1b6e54 RB |
1059 | } |
1060 | ||
1061 | error = _cp_r_callback(&info, &path); | |
1062 | ||
1063 | git_buf_free(&path); | |
07c06f7a | 1064 | git_buf_free(&info.to); |
ca1b6e54 RB |
1065 | |
1066 | return error; | |
1067 | } | |
744cc03e | 1068 | |
c1f61af6 VM |
1069 | int git_futils_filestamp_check( |
1070 | git_futils_filestamp *stamp, const char *path) | |
744cc03e RB |
1071 | { |
1072 | struct stat st; | |
1073 | ||
c8b511f3 RB |
1074 | /* if the stamp is NULL, then always reload */ |
1075 | if (stamp == NULL) | |
744cc03e RB |
1076 | return 1; |
1077 | ||
7d490872 | 1078 | if (p_stat(path, &st) < 0) |
744cc03e RB |
1079 | return GIT_ENOTFOUND; |
1080 | ||
3d6a42d1 | 1081 | if (stamp->mtime.tv_sec == st.st_mtime && |
0226f7dd | 1082 | #if defined(GIT_USE_NSEC) |
3d6a42d1 | 1083 | stamp->mtime.tv_nsec == st.st_mtime_nsec && |
0226f7dd | 1084 | #endif |
c8b511f3 RB |
1085 | stamp->size == (git_off_t)st.st_size && |
1086 | stamp->ino == (unsigned int)st.st_ino) | |
744cc03e RB |
1087 | return 0; |
1088 | ||
3d6a42d1 | 1089 | stamp->mtime.tv_sec = st.st_mtime; |
0226f7dd | 1090 | #if defined(GIT_USE_NSEC) |
3d6a42d1 | 1091 | stamp->mtime.tv_nsec = st.st_mtime_nsec; |
0226f7dd | 1092 | #endif |
c8b511f3 RB |
1093 | stamp->size = (git_off_t)st.st_size; |
1094 | stamp->ino = (unsigned int)st.st_ino; | |
744cc03e RB |
1095 | |
1096 | return 1; | |
1097 | } | |
1098 | ||
c1f61af6 VM |
1099 | void git_futils_filestamp_set( |
1100 | git_futils_filestamp *target, const git_futils_filestamp *source) | |
c8b511f3 RB |
1101 | { |
1102 | assert(target); | |
1103 | ||
1104 | if (source) | |
1105 | memcpy(target, source, sizeof(*target)); | |
1106 | else | |
1107 | memset(target, 0, sizeof(*target)); | |
1108 | } | |
823c0e9c RB |
1109 | |
1110 | ||
1111 | void git_futils_filestamp_set_from_stat( | |
1112 | git_futils_filestamp *stamp, struct stat *st) | |
1113 | { | |
1114 | if (st) { | |
3d6a42d1 ET |
1115 | stamp->mtime.tv_sec = st->st_mtime; |
1116 | #if defined(GIT_USE_NSEC) | |
1117 | stamp->mtime.tv_nsec = st->st_mtime_nsec; | |
1118 | #else | |
973a09a4 AR |
1119 | stamp->mtime.tv_nsec = 0; |
1120 | #endif | |
823c0e9c RB |
1121 | stamp->size = (git_off_t)st->st_size; |
1122 | stamp->ino = (unsigned int)st->st_ino; | |
1123 | } else { | |
1124 | memset(stamp, 0, sizeof(*stamp)); | |
1125 | } | |
1126 | } | |
1229e1c4 ET |
1127 | |
1128 | int git_futils_fsync_dir(const char *path) | |
1129 | { | |
1130 | int fd, error = -1; | |
1131 | ||
1132 | if ((fd = p_open(path, O_RDONLY)) < 0) { | |
1133 | giterr_set(GITERR_OS, "failed to open directory '%s' for fsync", path); | |
1134 | return -1; | |
1135 | } | |
1136 | ||
1137 | if ((error = p_fsync(fd)) < 0) | |
1138 | giterr_set(GITERR_OS, "failed to fsync directory '%s'", path); | |
1139 | ||
1140 | p_close(fd); | |
1141 | return error; | |
1142 | } | |
1143 | ||
1144 | int git_futils_fsync_parent(const char *path) | |
1145 | { | |
1146 | char *parent = git_path_dirname(path); | |
1147 | int error = git_futils_fsync_dir(parent); | |
1148 | ||
1149 | git__free(parent); | |
1150 | return error; | |
1151 | } |