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Commit | Line | Data |
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18125644 | 1 | #include "cache.h" |
b2141fc1 | 2 | #include "config.h" |
fb58c8d5 | 3 | #include "refs.h" |
18125644 | 4 | #include "commit.h" |
c0885435 | 5 | #include "tree-walk.h" |
18125644 | 6 | #include "attr.h" |
562e25ab | 7 | #include "archive.h" |
4fac1d3a | 8 | #include "parse-options.h" |
ba053ea9 | 9 | #include "unpack-trees.h" |
ed22b417 | 10 | #include "dir.h" |
4fac1d3a RS |
11 | |
12 | static char const * const archive_usage[] = { | |
9c9b4f2f | 13 | N_("git archive [<options>] <tree-ish> [<path>...]"), |
0012a387 | 14 | N_("git archive --list"), |
9c9b4f2f | 15 | N_("git archive --remote <repo> [--exec <cmd>] [<options>] <tree-ish> [<path>...]"), |
0012a387 | 16 | N_("git archive --remote <repo> [--exec <cmd>] --list"), |
4fac1d3a RS |
17 | NULL |
18 | }; | |
c0885435 | 19 | |
13e0f88d JK |
20 | static const struct archiver **archivers; |
21 | static int nr_archivers; | |
22 | static int alloc_archivers; | |
7671b632 | 23 | static int remote_allow_unreachable; |
13e0f88d JK |
24 | |
25 | void register_archiver(struct archiver *ar) | |
26 | { | |
27 | ALLOC_GROW(archivers, nr_archivers + 1, alloc_archivers); | |
28 | archivers[nr_archivers++] = ar; | |
29 | } | |
c0885435 | 30 | |
18125644 LH |
31 | static void format_subst(const struct commit *commit, |
32 | const char *src, size_t len, | |
33 | struct strbuf *buf) | |
34 | { | |
35 | char *to_free = NULL; | |
f285a2d7 | 36 | struct strbuf fmt = STRBUF_INIT; |
dd2e794a | 37 | struct pretty_print_context ctx = {0}; |
a5481a6c | 38 | ctx.date_mode.type = DATE_NORMAL; |
35039ced | 39 | ctx.abbrev = DEFAULT_ABBREV; |
18125644 LH |
40 | |
41 | if (src == buf->buf) | |
42 | to_free = strbuf_detach(buf, NULL); | |
18125644 LH |
43 | for (;;) { |
44 | const char *b, *c; | |
45 | ||
46 | b = memmem(src, len, "$Format:", 8); | |
75b7dfbd | 47 | if (!b) |
18125644 | 48 | break; |
75b7dfbd | 49 | c = memchr(b + 8, '$', (src + len) - b - 8); |
18125644 LH |
50 | if (!c) |
51 | break; | |
52 | ||
53 | strbuf_reset(&fmt); | |
54 | strbuf_add(&fmt, b + 8, c - b - 8); | |
55 | ||
56 | strbuf_add(buf, src, b - src); | |
dd2e794a | 57 | format_commit_message(commit, fmt.buf, buf, &ctx); |
18125644 LH |
58 | len -= c + 1 - src; |
59 | src = c + 1; | |
60 | } | |
61 | strbuf_add(buf, src, len); | |
62 | strbuf_release(&fmt); | |
63 | free(to_free); | |
64 | } | |
65 | ||
e5ec981a | 66 | void *object_file_to_archive(const struct archiver_args *args, |
67 | const char *path, const struct object_id *oid, | |
68 | unsigned int mode, enum object_type *type, | |
69 | unsigned long *sizep) | |
18125644 LH |
70 | { |
71 | void *buffer; | |
9cb513b7 | 72 | const struct commit *commit = args->convert ? args->commit : NULL; |
18125644 | 73 | |
9cb513b7 | 74 | path += args->baselen; |
b4f5aca4 | 75 | buffer = read_object_file(oid, type, sizep); |
18125644 | 76 | if (buffer && S_ISREG(mode)) { |
f285a2d7 | 77 | struct strbuf buf = STRBUF_INIT; |
18125644 LH |
78 | size_t size = 0; |
79 | ||
18125644 LH |
80 | strbuf_attach(&buf, buffer, *sizep, *sizep + 1); |
81 | convert_to_working_tree(path, buf.buf, buf.len, &buf); | |
1d11d5bb RS |
82 | if (commit) |
83 | format_subst(commit, buf.buf, buf.len, &buf); | |
18125644 LH |
84 | buffer = strbuf_detach(&buf, &size); |
85 | *sizep = size; | |
86 | } | |
87 | ||
88 | return buffer; | |
89 | } | |
90 | ||
ed22b417 NTND |
91 | struct directory { |
92 | struct directory *up; | |
13609673 | 93 | struct object_id oid; |
ed22b417 NTND |
94 | int baselen, len; |
95 | unsigned mode; | |
96 | int stage; | |
97 | char path[FLEX_ARRAY]; | |
98 | }; | |
99 | ||
562e25ab RS |
100 | struct archiver_context { |
101 | struct archiver_args *args; | |
102 | write_archive_entry_fn_t write_entry; | |
ed22b417 | 103 | struct directory *bottom; |
562e25ab RS |
104 | }; |
105 | ||
c6c08f7e RS |
106 | static const struct attr_check *get_archive_attrs(const char *path) |
107 | { | |
108 | static struct attr_check *check; | |
109 | if (!check) | |
110 | check = attr_check_initl("export-ignore", "export-subst", NULL); | |
111 | return git_check_attr(path, check) ? NULL : check; | |
112 | } | |
113 | ||
114 | static int check_attr_export_ignore(const struct attr_check *check) | |
115 | { | |
116 | return check && ATTR_TRUE(check->items[0].value); | |
117 | } | |
118 | ||
119 | static int check_attr_export_subst(const struct attr_check *check) | |
120 | { | |
121 | return check && ATTR_TRUE(check->items[1].value); | |
122 | } | |
123 | ||
015ff4f8 | 124 | static int write_archive_entry(const struct object_id *oid, const char *base, |
562e25ab RS |
125 | int baselen, const char *filename, unsigned mode, int stage, |
126 | void *context) | |
127 | { | |
128 | static struct strbuf path = STRBUF_INIT; | |
129 | struct archiver_context *c = context; | |
130 | struct archiver_args *args = c->args; | |
131 | write_archive_entry_fn_t write_entry = c->write_entry; | |
132 | int err; | |
5ff247ac | 133 | const char *path_without_prefix; |
562e25ab | 134 | |
9cb513b7 | 135 | args->convert = 0; |
562e25ab RS |
136 | strbuf_reset(&path); |
137 | strbuf_grow(&path, PATH_MAX); | |
ebfbdb34 | 138 | strbuf_add(&path, args->base, args->baselen); |
562e25ab RS |
139 | strbuf_add(&path, base, baselen); |
140 | strbuf_addstr(&path, filename); | |
94bc671a JNA |
141 | if (S_ISDIR(mode) || S_ISGITLINK(mode)) |
142 | strbuf_addch(&path, '/'); | |
1d11d5bb | 143 | path_without_prefix = path.buf + args->baselen; |
562e25ab | 144 | |
43180940 | 145 | if (!S_ISDIR(mode)) { |
5ff247ac RS |
146 | const struct attr_check *check; |
147 | check = get_archive_attrs(path_without_prefix); | |
148 | if (check_attr_export_ignore(check)) | |
1d11d5bb | 149 | return 0; |
5ff247ac | 150 | args->convert = check_attr_export_subst(check); |
1d11d5bb | 151 | } |
562e25ab RS |
152 | |
153 | if (S_ISDIR(mode) || S_ISGITLINK(mode)) { | |
562e25ab RS |
154 | if (args->verbose) |
155 | fprintf(stderr, "%.*s\n", (int)path.len, path.buf); | |
015ff4f8 | 156 | err = write_entry(args, oid, path.buf, path.len, mode); |
562e25ab RS |
157 | if (err) |
158 | return err; | |
d3bee161 | 159 | return (S_ISDIR(mode) ? READ_TREE_RECURSIVE : 0); |
562e25ab RS |
160 | } |
161 | ||
562e25ab RS |
162 | if (args->verbose) |
163 | fprintf(stderr, "%.*s\n", (int)path.len, path.buf); | |
015ff4f8 | 164 | return write_entry(args, oid, path.buf, path.len, mode); |
562e25ab RS |
165 | } |
166 | ||
ed22b417 | 167 | static void queue_directory(const unsigned char *sha1, |
6a0b0b6d | 168 | struct strbuf *base, const char *filename, |
ed22b417 NTND |
169 | unsigned mode, int stage, struct archiver_context *c) |
170 | { | |
171 | struct directory *d; | |
50a6c8ef JK |
172 | size_t len = st_add4(base->len, 1, strlen(filename), 1); |
173 | d = xmalloc(st_add(sizeof(*d), len)); | |
ed22b417 | 174 | d->up = c->bottom; |
6a0b0b6d | 175 | d->baselen = base->len; |
ed22b417 NTND |
176 | d->mode = mode; |
177 | d->stage = stage; | |
178 | c->bottom = d; | |
c7ab0ba3 | 179 | d->len = xsnprintf(d->path, len, "%.*s%s/", (int)base->len, base->buf, filename); |
13609673 | 180 | hashcpy(d->oid.hash, sha1); |
ed22b417 NTND |
181 | } |
182 | ||
183 | static int write_directory(struct archiver_context *c) | |
184 | { | |
185 | struct directory *d = c->bottom; | |
186 | int ret; | |
187 | ||
188 | if (!d) | |
189 | return 0; | |
190 | c->bottom = d->up; | |
191 | d->path[d->len - 1] = '\0'; /* no trailing slash */ | |
192 | ret = | |
193 | write_directory(c) || | |
015ff4f8 | 194 | write_archive_entry(&d->oid, d->path, d->baselen, |
ed22b417 NTND |
195 | d->path + d->baselen, d->mode, |
196 | d->stage, c) != READ_TREE_RECURSIVE; | |
197 | free(d); | |
198 | return ret ? -1 : 0; | |
199 | } | |
200 | ||
df46d77e | 201 | static int queue_or_write_archive_entry(const struct object_id *oid, |
6a0b0b6d | 202 | struct strbuf *base, const char *filename, |
ed22b417 NTND |
203 | unsigned mode, int stage, void *context) |
204 | { | |
205 | struct archiver_context *c = context; | |
206 | ||
207 | while (c->bottom && | |
6a0b0b6d NTND |
208 | !(base->len >= c->bottom->len && |
209 | !strncmp(base->buf, c->bottom->path, c->bottom->len))) { | |
ed22b417 NTND |
210 | struct directory *next = c->bottom->up; |
211 | free(c->bottom); | |
212 | c->bottom = next; | |
213 | } | |
214 | ||
215 | if (S_ISDIR(mode)) { | |
5ff247ac RS |
216 | size_t baselen = base->len; |
217 | const struct attr_check *check; | |
218 | ||
219 | /* Borrow base, but restore its original value when done. */ | |
220 | strbuf_addstr(base, filename); | |
221 | strbuf_addch(base, '/'); | |
222 | check = get_archive_attrs(base->buf); | |
223 | strbuf_setlen(base, baselen); | |
224 | ||
225 | if (check_attr_export_ignore(check)) | |
226 | return 0; | |
df46d77e | 227 | queue_directory(oid->hash, base, filename, |
ed22b417 NTND |
228 | mode, stage, c); |
229 | return READ_TREE_RECURSIVE; | |
230 | } | |
231 | ||
232 | if (write_directory(c)) | |
233 | return -1; | |
015ff4f8 | 234 | return write_archive_entry(oid, base->buf, base->len, filename, mode, |
ed22b417 NTND |
235 | stage, context); |
236 | } | |
237 | ||
562e25ab RS |
238 | int write_archive_entries(struct archiver_args *args, |
239 | write_archive_entry_fn_t write_entry) | |
240 | { | |
241 | struct archiver_context context; | |
ba053ea9 NTND |
242 | struct unpack_trees_options opts; |
243 | struct tree_desc t; | |
562e25ab RS |
244 | int err; |
245 | ||
246 | if (args->baselen > 0 && args->base[args->baselen - 1] == '/') { | |
247 | size_t len = args->baselen; | |
248 | ||
249 | while (len > 1 && args->base[len - 2] == '/') | |
250 | len--; | |
251 | if (args->verbose) | |
252 | fprintf(stderr, "%.*s\n", (int)len, args->base); | |
015ff4f8 | 253 | err = write_entry(args, &args->tree->object.oid, args->base, |
9cb513b7 | 254 | len, 040777); |
562e25ab RS |
255 | if (err) |
256 | return err; | |
257 | } | |
258 | ||
ed22b417 | 259 | memset(&context, 0, sizeof(context)); |
562e25ab RS |
260 | context.args = args; |
261 | context.write_entry = write_entry; | |
262 | ||
ba053ea9 NTND |
263 | /* |
264 | * Setup index and instruct attr to read index only | |
265 | */ | |
266 | if (!args->worktree_attributes) { | |
267 | memset(&opts, 0, sizeof(opts)); | |
268 | opts.index_only = 1; | |
269 | opts.head_idx = -1; | |
270 | opts.src_index = &the_index; | |
271 | opts.dst_index = &the_index; | |
272 | opts.fn = oneway_merge; | |
273 | init_tree_desc(&t, args->tree->buffer, args->tree->size); | |
274 | if (unpack_trees(1, &t, &opts)) | |
275 | return -1; | |
276 | git_attr_set_direction(GIT_ATTR_INDEX, &the_index); | |
277 | } | |
278 | ||
f3e743a0 | 279 | err = read_tree_recursive(args->tree, "", 0, 0, &args->pathspec, |
43180940 | 280 | queue_or_write_archive_entry, |
ed22b417 | 281 | &context); |
562e25ab RS |
282 | if (err == READ_TREE_RECURSIVE) |
283 | err = 0; | |
ed22b417 NTND |
284 | while (context.bottom) { |
285 | struct directory *next = context.bottom->up; | |
286 | free(context.bottom); | |
287 | context.bottom = next; | |
288 | } | |
562e25ab RS |
289 | return err; |
290 | } | |
6e94e683 | 291 | |
c0885435 RS |
292 | static const struct archiver *lookup_archiver(const char *name) |
293 | { | |
294 | int i; | |
295 | ||
4fac1d3a RS |
296 | if (!name) |
297 | return NULL; | |
298 | ||
13e0f88d JK |
299 | for (i = 0; i < nr_archivers; i++) { |
300 | if (!strcmp(name, archivers[i]->name)) | |
301 | return archivers[i]; | |
c0885435 RS |
302 | } |
303 | return NULL; | |
304 | } | |
305 | ||
df46d77e | 306 | static int reject_entry(const struct object_id *oid, struct strbuf *base, |
6a0b0b6d | 307 | const char *filename, unsigned mode, |
d5f53d6d RS |
308 | int stage, void *context) |
309 | { | |
ed22b417 NTND |
310 | int ret = -1; |
311 | if (S_ISDIR(mode)) { | |
312 | struct strbuf sb = STRBUF_INIT; | |
6a0b0b6d | 313 | strbuf_addbuf(&sb, base); |
ed22b417 NTND |
314 | strbuf_addstr(&sb, filename); |
315 | if (!match_pathspec(context, sb.buf, sb.len, 0, NULL, 1)) | |
316 | ret = READ_TREE_RECURSIVE; | |
317 | strbuf_release(&sb); | |
318 | } | |
319 | return ret; | |
d5f53d6d RS |
320 | } |
321 | ||
322 | static int path_exists(struct tree *tree, const char *path) | |
323 | { | |
f0096c06 NTND |
324 | const char *paths[] = { path, NULL }; |
325 | struct pathspec pathspec; | |
326 | int ret; | |
327 | ||
f3e743a0 | 328 | parse_pathspec(&pathspec, 0, 0, "", paths); |
ed22b417 NTND |
329 | pathspec.recursive = 1; |
330 | ret = read_tree_recursive(tree, "", 0, 0, &pathspec, | |
331 | reject_entry, &pathspec); | |
ed6e8038 | 332 | clear_pathspec(&pathspec); |
f0096c06 | 333 | return ret != 0; |
d5f53d6d RS |
334 | } |
335 | ||
c0885435 RS |
336 | static void parse_pathspec_arg(const char **pathspec, |
337 | struct archiver_args *ar_args) | |
338 | { | |
f3e743a0 NTND |
339 | /* |
340 | * must be consistent with parse_pathspec in path_exists() | |
341 | * Also if pathspec patterns are dependent, we're in big | |
342 | * trouble as we test each one separately | |
343 | */ | |
344 | parse_pathspec(&ar_args->pathspec, 0, | |
345 | PATHSPEC_PREFER_FULL, | |
346 | "", pathspec); | |
ed22b417 | 347 | ar_args->pathspec.recursive = 1; |
d5f53d6d RS |
348 | if (pathspec) { |
349 | while (*pathspec) { | |
bd54cf17 | 350 | if (**pathspec && !path_exists(ar_args->tree, *pathspec)) |
f3e743a0 | 351 | die(_("pathspec '%s' did not match any files"), *pathspec); |
d5f53d6d RS |
352 | pathspec++; |
353 | } | |
354 | } | |
c0885435 RS |
355 | } |
356 | ||
357 | static void parse_treeish_arg(const char **argv, | |
ee27ca4a JK |
358 | struct archiver_args *ar_args, const char *prefix, |
359 | int remote) | |
c0885435 RS |
360 | { |
361 | const char *name = argv[0]; | |
362 | const unsigned char *commit_sha1; | |
363 | time_t archive_time; | |
364 | struct tree *tree; | |
365 | const struct commit *commit; | |
13609673 | 366 | struct object_id oid; |
c0885435 | 367 | |
ee27ca4a | 368 | /* Remotes are only allowed to fetch actual refs */ |
7671b632 | 369 | if (remote && !remote_allow_unreachable) { |
ee27ca4a | 370 | char *ref = NULL; |
2c5495f7 RM |
371 | const char *colon = strchrnul(name, ':'); |
372 | int refnamelen = colon - name; | |
c51a351a | 373 | |
cca5fa64 | 374 | if (!dwim_ref(name, refnamelen, &oid, &ref)) |
c51a351a | 375 | die("no such ref: %.*s", refnamelen, name); |
ee27ca4a JK |
376 | free(ref); |
377 | } | |
0f544ee8 | 378 | |
e82caf38 | 379 | if (get_oid(name, &oid)) |
0f544ee8 | 380 | die("Not a valid object name"); |
c0885435 | 381 | |
bc83266a | 382 | commit = lookup_commit_reference_gently(&oid, 1); |
c0885435 | 383 | if (commit) { |
ed1c9977 | 384 | commit_sha1 = commit->object.oid.hash; |
c0885435 RS |
385 | archive_time = commit->date; |
386 | } else { | |
387 | commit_sha1 = NULL; | |
388 | archive_time = time(NULL); | |
389 | } | |
390 | ||
a9dbc179 | 391 | tree = parse_tree_indirect(&oid); |
c0885435 RS |
392 | if (tree == NULL) |
393 | die("not a tree object"); | |
394 | ||
395 | if (prefix) { | |
13609673 | 396 | struct object_id tree_oid; |
c0885435 RS |
397 | unsigned int mode; |
398 | int err; | |
399 | ||
916bc35b | 400 | err = get_tree_entry(&tree->object.oid, prefix, &tree_oid, |
401 | &mode); | |
c0885435 RS |
402 | if (err || !S_ISDIR(mode)) |
403 | die("current working directory is untracked"); | |
404 | ||
a9dbc179 | 405 | tree = parse_tree_indirect(&tree_oid); |
c0885435 RS |
406 | } |
407 | ar_args->tree = tree; | |
408 | ar_args->commit_sha1 = commit_sha1; | |
409 | ar_args->commit = commit; | |
410 | ar_args->time = archive_time; | |
411 | } | |
412 | ||
4fac1d3a | 413 | #define OPT__COMPR(s, v, h, p) \ |
3e4a67b4 | 414 | OPT_SET_INT_F(s, NULL, v, h, p, PARSE_OPT_NONEG) |
4fac1d3a | 415 | #define OPT__COMPR_HIDDEN(s, v, p) \ |
3e4a67b4 | 416 | OPT_SET_INT_F(s, NULL, v, "", p, PARSE_OPT_NONEG | PARSE_OPT_HIDDEN) |
4fac1d3a | 417 | |
c0885435 | 418 | static int parse_archive_args(int argc, const char **argv, |
56baa61d | 419 | const struct archiver **ar, struct archiver_args *args, |
7b97730b | 420 | const char *name_hint, int is_remote) |
c0885435 | 421 | { |
56baa61d | 422 | const char *format = NULL; |
4fac1d3a RS |
423 | const char *base = NULL; |
424 | const char *remote = NULL; | |
425 | const char *exec = NULL; | |
aec0c1bb | 426 | const char *output = NULL; |
c0885435 RS |
427 | int compression_level = -1; |
428 | int verbose = 0; | |
429 | int i; | |
4fac1d3a | 430 | int list = 0; |
ba053ea9 | 431 | int worktree_attributes = 0; |
4fac1d3a RS |
432 | struct option opts[] = { |
433 | OPT_GROUP(""), | |
0012a387 NTND |
434 | OPT_STRING(0, "format", &format, N_("fmt"), N_("archive format")), |
435 | OPT_STRING(0, "prefix", &base, N_("prefix"), | |
436 | N_("prepend prefix to each pathname in the archive")), | |
437 | OPT_STRING('o', "output", &output, N_("file"), | |
438 | N_("write the archive to this file")), | |
f858c646 | 439 | OPT_BOOL(0, "worktree-attributes", &worktree_attributes, |
0012a387 NTND |
440 | N_("read .gitattributes in working directory")), |
441 | OPT__VERBOSE(&verbose, N_("report archived files on stderr")), | |
442 | OPT__COMPR('0', &compression_level, N_("store only"), 0), | |
443 | OPT__COMPR('1', &compression_level, N_("compress faster"), 1), | |
4fac1d3a RS |
444 | OPT__COMPR_HIDDEN('2', &compression_level, 2), |
445 | OPT__COMPR_HIDDEN('3', &compression_level, 3), | |
446 | OPT__COMPR_HIDDEN('4', &compression_level, 4), | |
447 | OPT__COMPR_HIDDEN('5', &compression_level, 5), | |
448 | OPT__COMPR_HIDDEN('6', &compression_level, 6), | |
449 | OPT__COMPR_HIDDEN('7', &compression_level, 7), | |
450 | OPT__COMPR_HIDDEN('8', &compression_level, 8), | |
0012a387 | 451 | OPT__COMPR('9', &compression_level, N_("compress better"), 9), |
4fac1d3a | 452 | OPT_GROUP(""), |
f858c646 | 453 | OPT_BOOL('l', "list", &list, |
0012a387 | 454 | N_("list supported archive formats")), |
4fac1d3a | 455 | OPT_GROUP(""), |
0012a387 NTND |
456 | OPT_STRING(0, "remote", &remote, N_("repo"), |
457 | N_("retrieve the archive from remote repository <repo>")), | |
b0ff9654 | 458 | OPT_STRING(0, "exec", &exec, N_("command"), |
0012a387 | 459 | N_("path to the remote git-upload-archive command")), |
4fac1d3a RS |
460 | OPT_END() |
461 | }; | |
462 | ||
37782920 | 463 | argc = parse_options(argc, argv, NULL, opts, archive_usage, 0); |
4fac1d3a RS |
464 | |
465 | if (remote) | |
5a36d00c | 466 | die(_("Unexpected option --remote")); |
4fac1d3a | 467 | if (exec) |
5a36d00c | 468 | die(_("Option --exec can only be used together with --remote")); |
52e77876 | 469 | if (output) |
5a36d00c | 470 | die(_("Unexpected option --output")); |
4fac1d3a RS |
471 | |
472 | if (!base) | |
473 | base = ""; | |
474 | ||
475 | if (list) { | |
13e0f88d | 476 | for (i = 0; i < nr_archivers; i++) |
7b97730b JK |
477 | if (!is_remote || archivers[i]->flags & ARCHIVER_REMOTE) |
478 | printf("%s\n", archivers[i]->name); | |
4fac1d3a | 479 | exit(0); |
c0885435 RS |
480 | } |
481 | ||
56baa61d JK |
482 | if (!format && name_hint) |
483 | format = archive_format_from_filename(name_hint); | |
484 | if (!format) | |
485 | format = "tar"; | |
486 | ||
c0885435 | 487 | /* We need at least one parameter -- tree-ish */ |
4fac1d3a RS |
488 | if (argc < 1) |
489 | usage_with_options(archive_usage, opts); | |
c0885435 | 490 | *ar = lookup_archiver(format); |
7b97730b | 491 | if (!*ar || (is_remote && !((*ar)->flags & ARCHIVER_REMOTE))) |
5a36d00c | 492 | die(_("Unknown archive format '%s'"), format); |
c0885435 RS |
493 | |
494 | args->compression_level = Z_DEFAULT_COMPRESSION; | |
495 | if (compression_level != -1) { | |
13e0f88d | 496 | if ((*ar)->flags & ARCHIVER_WANT_COMPRESSION_LEVELS) |
c0885435 RS |
497 | args->compression_level = compression_level; |
498 | else { | |
5a36d00c | 499 | die(_("Argument not supported for format '%s': -%d"), |
c0885435 RS |
500 | format, compression_level); |
501 | } | |
502 | } | |
503 | args->verbose = verbose; | |
504 | args->base = base; | |
505 | args->baselen = strlen(base); | |
ba053ea9 | 506 | args->worktree_attributes = worktree_attributes; |
c0885435 | 507 | |
4fac1d3a | 508 | return argc; |
c0885435 RS |
509 | } |
510 | ||
6e94e683 | 511 | int write_archive(int argc, const char **argv, const char *prefix, |
eb0224c6 | 512 | const char *name_hint, int remote) |
6e94e683 RS |
513 | { |
514 | const struct archiver *ar = NULL; | |
515 | struct archiver_args args; | |
6e94e683 | 516 | |
95790ff6 TA |
517 | git_config_get_bool("uploadarchive.allowunreachable", &remote_allow_unreachable); |
518 | git_config(git_default_config, NULL); | |
519 | ||
13e0f88d JK |
520 | init_tar_archiver(); |
521 | init_zip_archiver(); | |
23212862 | 522 | |
7b97730b | 523 | argc = parse_archive_args(argc, argv, &ar, &args, name_hint, remote); |
eb0224c6 | 524 | if (!startup_info->have_repository) { |
23212862 JK |
525 | /* |
526 | * We know this will die() with an error, so we could just | |
527 | * die ourselves; but its error message will be more specific | |
528 | * than what we could write here. | |
529 | */ | |
530 | setup_git_directory(); | |
531 | } | |
6e94e683 | 532 | |
ee27ca4a | 533 | parse_treeish_arg(argv, &args, prefix, remote); |
6e94e683 RS |
534 | parse_pathspec_arg(argv + 1, &args); |
535 | ||
4d7c9898 | 536 | return ar->write_archive(ar, &args); |
6e94e683 | 537 | } |
56baa61d | 538 | |
08716b3c JK |
539 | static int match_extension(const char *filename, const char *ext) |
540 | { | |
541 | int prefixlen = strlen(filename) - strlen(ext); | |
542 | ||
543 | /* | |
544 | * We need 1 character for the '.', and 1 character to ensure that the | |
545 | * prefix is non-empty (k.e., we don't match .tar.gz with no actual | |
546 | * filename). | |
547 | */ | |
b1cdfb54 | 548 | if (prefixlen < 2 || filename[prefixlen - 1] != '.') |
08716b3c JK |
549 | return 0; |
550 | return !strcmp(filename + prefixlen, ext); | |
551 | } | |
552 | ||
56baa61d JK |
553 | const char *archive_format_from_filename(const char *filename) |
554 | { | |
08716b3c JK |
555 | int i; |
556 | ||
557 | for (i = 0; i < nr_archivers; i++) | |
558 | if (match_extension(filename, archivers[i]->name)) | |
559 | return archivers[i]->name; | |
56baa61d JK |
560 | return NULL; |
561 | } |