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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 | ||
9cb513b7 NTND |
66 | void *sha1_file_to_archive(const struct archiver_args *args, |
67 | const char *path, const unsigned char *sha1, | |
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; |
18125644 LH |
75 | buffer = read_sha1_file(sha1, type, sizep); |
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 | ||
5ff247ac RS |
124 | static int should_queue_directories(const struct archiver_args *args) |
125 | { | |
126 | return args->pathspec.has_wildcard; | |
127 | } | |
128 | ||
562e25ab RS |
129 | static int write_archive_entry(const unsigned char *sha1, const char *base, |
130 | int baselen, const char *filename, unsigned mode, int stage, | |
131 | void *context) | |
132 | { | |
133 | static struct strbuf path = STRBUF_INIT; | |
134 | struct archiver_context *c = context; | |
135 | struct archiver_args *args = c->args; | |
136 | write_archive_entry_fn_t write_entry = c->write_entry; | |
137 | int err; | |
5ff247ac | 138 | const char *path_without_prefix; |
562e25ab | 139 | |
9cb513b7 | 140 | args->convert = 0; |
562e25ab RS |
141 | strbuf_reset(&path); |
142 | strbuf_grow(&path, PATH_MAX); | |
ebfbdb34 | 143 | strbuf_add(&path, args->base, args->baselen); |
562e25ab RS |
144 | strbuf_add(&path, base, baselen); |
145 | strbuf_addstr(&path, filename); | |
94bc671a JNA |
146 | if (S_ISDIR(mode) || S_ISGITLINK(mode)) |
147 | strbuf_addch(&path, '/'); | |
1d11d5bb | 148 | path_without_prefix = path.buf + args->baselen; |
562e25ab | 149 | |
5ff247ac RS |
150 | if (!S_ISDIR(mode) || !should_queue_directories(args)) { |
151 | const struct attr_check *check; | |
152 | check = get_archive_attrs(path_without_prefix); | |
153 | if (check_attr_export_ignore(check)) | |
154 | return 0; | |
155 | args->convert = check_attr_export_subst(check); | |
156 | } | |
562e25ab RS |
157 | |
158 | if (S_ISDIR(mode) || S_ISGITLINK(mode)) { | |
562e25ab RS |
159 | if (args->verbose) |
160 | fprintf(stderr, "%.*s\n", (int)path.len, path.buf); | |
9cb513b7 | 161 | err = write_entry(args, sha1, path.buf, path.len, mode); |
562e25ab RS |
162 | if (err) |
163 | return err; | |
d3bee161 | 164 | return (S_ISDIR(mode) ? READ_TREE_RECURSIVE : 0); |
562e25ab RS |
165 | } |
166 | ||
562e25ab RS |
167 | if (args->verbose) |
168 | fprintf(stderr, "%.*s\n", (int)path.len, path.buf); | |
9cb513b7 | 169 | return write_entry(args, sha1, path.buf, path.len, mode); |
562e25ab RS |
170 | } |
171 | ||
6a0b0b6d NTND |
172 | static int write_archive_entry_buf(const unsigned char *sha1, struct strbuf *base, |
173 | const char *filename, unsigned mode, int stage, | |
174 | void *context) | |
175 | { | |
176 | return write_archive_entry(sha1, base->buf, base->len, | |
177 | filename, mode, stage, context); | |
178 | } | |
179 | ||
ed22b417 | 180 | static void queue_directory(const unsigned char *sha1, |
6a0b0b6d | 181 | struct strbuf *base, const char *filename, |
ed22b417 NTND |
182 | unsigned mode, int stage, struct archiver_context *c) |
183 | { | |
184 | struct directory *d; | |
50a6c8ef JK |
185 | size_t len = st_add4(base->len, 1, strlen(filename), 1); |
186 | d = xmalloc(st_add(sizeof(*d), len)); | |
ed22b417 | 187 | d->up = c->bottom; |
6a0b0b6d | 188 | d->baselen = base->len; |
ed22b417 NTND |
189 | d->mode = mode; |
190 | d->stage = stage; | |
191 | c->bottom = d; | |
c7ab0ba3 | 192 | d->len = xsnprintf(d->path, len, "%.*s%s/", (int)base->len, base->buf, filename); |
13609673 | 193 | hashcpy(d->oid.hash, sha1); |
ed22b417 NTND |
194 | } |
195 | ||
196 | static int write_directory(struct archiver_context *c) | |
197 | { | |
198 | struct directory *d = c->bottom; | |
199 | int ret; | |
200 | ||
201 | if (!d) | |
202 | return 0; | |
203 | c->bottom = d->up; | |
204 | d->path[d->len - 1] = '\0'; /* no trailing slash */ | |
205 | ret = | |
206 | write_directory(c) || | |
13609673 | 207 | write_archive_entry(d->oid.hash, d->path, d->baselen, |
ed22b417 NTND |
208 | d->path + d->baselen, d->mode, |
209 | d->stage, c) != READ_TREE_RECURSIVE; | |
210 | free(d); | |
211 | return ret ? -1 : 0; | |
212 | } | |
213 | ||
214 | static int queue_or_write_archive_entry(const unsigned char *sha1, | |
6a0b0b6d | 215 | struct strbuf *base, const char *filename, |
ed22b417 NTND |
216 | unsigned mode, int stage, void *context) |
217 | { | |
218 | struct archiver_context *c = context; | |
219 | ||
220 | while (c->bottom && | |
6a0b0b6d NTND |
221 | !(base->len >= c->bottom->len && |
222 | !strncmp(base->buf, c->bottom->path, c->bottom->len))) { | |
ed22b417 NTND |
223 | struct directory *next = c->bottom->up; |
224 | free(c->bottom); | |
225 | c->bottom = next; | |
226 | } | |
227 | ||
228 | if (S_ISDIR(mode)) { | |
5ff247ac RS |
229 | size_t baselen = base->len; |
230 | const struct attr_check *check; | |
231 | ||
232 | /* Borrow base, but restore its original value when done. */ | |
233 | strbuf_addstr(base, filename); | |
234 | strbuf_addch(base, '/'); | |
235 | check = get_archive_attrs(base->buf); | |
236 | strbuf_setlen(base, baselen); | |
237 | ||
238 | if (check_attr_export_ignore(check)) | |
239 | return 0; | |
6a0b0b6d | 240 | queue_directory(sha1, base, filename, |
ed22b417 NTND |
241 | mode, stage, c); |
242 | return READ_TREE_RECURSIVE; | |
243 | } | |
244 | ||
245 | if (write_directory(c)) | |
246 | return -1; | |
6a0b0b6d | 247 | return write_archive_entry(sha1, base->buf, base->len, filename, mode, |
ed22b417 NTND |
248 | stage, context); |
249 | } | |
250 | ||
562e25ab RS |
251 | int write_archive_entries(struct archiver_args *args, |
252 | write_archive_entry_fn_t write_entry) | |
253 | { | |
254 | struct archiver_context context; | |
ba053ea9 NTND |
255 | struct unpack_trees_options opts; |
256 | struct tree_desc t; | |
562e25ab RS |
257 | int err; |
258 | ||
259 | if (args->baselen > 0 && args->base[args->baselen - 1] == '/') { | |
260 | size_t len = args->baselen; | |
261 | ||
262 | while (len > 1 && args->base[len - 2] == '/') | |
263 | len--; | |
264 | if (args->verbose) | |
265 | fprintf(stderr, "%.*s\n", (int)len, args->base); | |
ed1c9977 | 266 | err = write_entry(args, args->tree->object.oid.hash, args->base, |
9cb513b7 | 267 | len, 040777); |
562e25ab RS |
268 | if (err) |
269 | return err; | |
270 | } | |
271 | ||
ed22b417 | 272 | memset(&context, 0, sizeof(context)); |
562e25ab RS |
273 | context.args = args; |
274 | context.write_entry = write_entry; | |
275 | ||
ba053ea9 NTND |
276 | /* |
277 | * Setup index and instruct attr to read index only | |
278 | */ | |
279 | if (!args->worktree_attributes) { | |
280 | memset(&opts, 0, sizeof(opts)); | |
281 | opts.index_only = 1; | |
282 | opts.head_idx = -1; | |
283 | opts.src_index = &the_index; | |
284 | opts.dst_index = &the_index; | |
285 | opts.fn = oneway_merge; | |
286 | init_tree_desc(&t, args->tree->buffer, args->tree->size); | |
287 | if (unpack_trees(1, &t, &opts)) | |
288 | return -1; | |
289 | git_attr_set_direction(GIT_ATTR_INDEX, &the_index); | |
290 | } | |
291 | ||
f3e743a0 | 292 | err = read_tree_recursive(args->tree, "", 0, 0, &args->pathspec, |
5ff247ac | 293 | should_queue_directories(args) ? |
ed22b417 | 294 | queue_or_write_archive_entry : |
6a0b0b6d | 295 | write_archive_entry_buf, |
ed22b417 | 296 | &context); |
562e25ab RS |
297 | if (err == READ_TREE_RECURSIVE) |
298 | err = 0; | |
ed22b417 NTND |
299 | while (context.bottom) { |
300 | struct directory *next = context.bottom->up; | |
301 | free(context.bottom); | |
302 | context.bottom = next; | |
303 | } | |
562e25ab RS |
304 | return err; |
305 | } | |
6e94e683 | 306 | |
c0885435 RS |
307 | static const struct archiver *lookup_archiver(const char *name) |
308 | { | |
309 | int i; | |
310 | ||
4fac1d3a RS |
311 | if (!name) |
312 | return NULL; | |
313 | ||
13e0f88d JK |
314 | for (i = 0; i < nr_archivers; i++) { |
315 | if (!strcmp(name, archivers[i]->name)) | |
316 | return archivers[i]; | |
c0885435 RS |
317 | } |
318 | return NULL; | |
319 | } | |
320 | ||
6a0b0b6d NTND |
321 | static int reject_entry(const unsigned char *sha1, struct strbuf *base, |
322 | const char *filename, unsigned mode, | |
d5f53d6d RS |
323 | int stage, void *context) |
324 | { | |
ed22b417 NTND |
325 | int ret = -1; |
326 | if (S_ISDIR(mode)) { | |
327 | struct strbuf sb = STRBUF_INIT; | |
6a0b0b6d | 328 | strbuf_addbuf(&sb, base); |
ed22b417 NTND |
329 | strbuf_addstr(&sb, filename); |
330 | if (!match_pathspec(context, sb.buf, sb.len, 0, NULL, 1)) | |
331 | ret = READ_TREE_RECURSIVE; | |
332 | strbuf_release(&sb); | |
333 | } | |
334 | return ret; | |
d5f53d6d RS |
335 | } |
336 | ||
337 | static int path_exists(struct tree *tree, const char *path) | |
338 | { | |
f0096c06 NTND |
339 | const char *paths[] = { path, NULL }; |
340 | struct pathspec pathspec; | |
341 | int ret; | |
342 | ||
f3e743a0 | 343 | parse_pathspec(&pathspec, 0, 0, "", paths); |
ed22b417 NTND |
344 | pathspec.recursive = 1; |
345 | ret = read_tree_recursive(tree, "", 0, 0, &pathspec, | |
346 | reject_entry, &pathspec); | |
ed6e8038 | 347 | clear_pathspec(&pathspec); |
f0096c06 | 348 | return ret != 0; |
d5f53d6d RS |
349 | } |
350 | ||
c0885435 RS |
351 | static void parse_pathspec_arg(const char **pathspec, |
352 | struct archiver_args *ar_args) | |
353 | { | |
f3e743a0 NTND |
354 | /* |
355 | * must be consistent with parse_pathspec in path_exists() | |
356 | * Also if pathspec patterns are dependent, we're in big | |
357 | * trouble as we test each one separately | |
358 | */ | |
359 | parse_pathspec(&ar_args->pathspec, 0, | |
360 | PATHSPEC_PREFER_FULL, | |
361 | "", pathspec); | |
ed22b417 | 362 | ar_args->pathspec.recursive = 1; |
d5f53d6d RS |
363 | if (pathspec) { |
364 | while (*pathspec) { | |
bd54cf17 | 365 | if (**pathspec && !path_exists(ar_args->tree, *pathspec)) |
f3e743a0 | 366 | die(_("pathspec '%s' did not match any files"), *pathspec); |
d5f53d6d RS |
367 | pathspec++; |
368 | } | |
369 | } | |
c0885435 RS |
370 | } |
371 | ||
372 | static void parse_treeish_arg(const char **argv, | |
ee27ca4a JK |
373 | struct archiver_args *ar_args, const char *prefix, |
374 | int remote) | |
c0885435 RS |
375 | { |
376 | const char *name = argv[0]; | |
377 | const unsigned char *commit_sha1; | |
378 | time_t archive_time; | |
379 | struct tree *tree; | |
380 | const struct commit *commit; | |
13609673 | 381 | struct object_id oid; |
c0885435 | 382 | |
ee27ca4a | 383 | /* Remotes are only allowed to fetch actual refs */ |
7671b632 | 384 | if (remote && !remote_allow_unreachable) { |
ee27ca4a | 385 | char *ref = NULL; |
2c5495f7 RM |
386 | const char *colon = strchrnul(name, ':'); |
387 | int refnamelen = colon - name; | |
c51a351a | 388 | |
13609673 | 389 | if (!dwim_ref(name, refnamelen, oid.hash, &ref)) |
c51a351a | 390 | die("no such ref: %.*s", refnamelen, name); |
ee27ca4a JK |
391 | free(ref); |
392 | } | |
0f544ee8 | 393 | |
13609673 | 394 | if (get_sha1(name, oid.hash)) |
0f544ee8 | 395 | die("Not a valid object name"); |
c0885435 | 396 | |
bc83266a | 397 | commit = lookup_commit_reference_gently(&oid, 1); |
c0885435 | 398 | if (commit) { |
ed1c9977 | 399 | commit_sha1 = commit->object.oid.hash; |
c0885435 RS |
400 | archive_time = commit->date; |
401 | } else { | |
402 | commit_sha1 = NULL; | |
403 | archive_time = time(NULL); | |
404 | } | |
405 | ||
a9dbc179 | 406 | tree = parse_tree_indirect(&oid); |
c0885435 RS |
407 | if (tree == NULL) |
408 | die("not a tree object"); | |
409 | ||
410 | if (prefix) { | |
13609673 | 411 | struct object_id tree_oid; |
c0885435 RS |
412 | unsigned int mode; |
413 | int err; | |
414 | ||
ed1c9977 | 415 | err = get_tree_entry(tree->object.oid.hash, prefix, |
13609673 | 416 | tree_oid.hash, &mode); |
c0885435 RS |
417 | if (err || !S_ISDIR(mode)) |
418 | die("current working directory is untracked"); | |
419 | ||
a9dbc179 | 420 | tree = parse_tree_indirect(&tree_oid); |
c0885435 RS |
421 | } |
422 | ar_args->tree = tree; | |
423 | ar_args->commit_sha1 = commit_sha1; | |
424 | ar_args->commit = commit; | |
425 | ar_args->time = archive_time; | |
426 | } | |
427 | ||
4fac1d3a RS |
428 | #define OPT__COMPR(s, v, h, p) \ |
429 | { OPTION_SET_INT, (s), NULL, (v), NULL, (h), \ | |
430 | PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, (p) } | |
431 | #define OPT__COMPR_HIDDEN(s, v, p) \ | |
432 | { OPTION_SET_INT, (s), NULL, (v), NULL, "", \ | |
433 | PARSE_OPT_NOARG | PARSE_OPT_NONEG | PARSE_OPT_HIDDEN, NULL, (p) } | |
434 | ||
c0885435 | 435 | static int parse_archive_args(int argc, const char **argv, |
56baa61d | 436 | const struct archiver **ar, struct archiver_args *args, |
7b97730b | 437 | const char *name_hint, int is_remote) |
c0885435 | 438 | { |
56baa61d | 439 | const char *format = NULL; |
4fac1d3a RS |
440 | const char *base = NULL; |
441 | const char *remote = NULL; | |
442 | const char *exec = NULL; | |
aec0c1bb | 443 | const char *output = NULL; |
c0885435 RS |
444 | int compression_level = -1; |
445 | int verbose = 0; | |
446 | int i; | |
4fac1d3a | 447 | int list = 0; |
ba053ea9 | 448 | int worktree_attributes = 0; |
4fac1d3a RS |
449 | struct option opts[] = { |
450 | OPT_GROUP(""), | |
0012a387 NTND |
451 | OPT_STRING(0, "format", &format, N_("fmt"), N_("archive format")), |
452 | OPT_STRING(0, "prefix", &base, N_("prefix"), | |
453 | N_("prepend prefix to each pathname in the archive")), | |
454 | OPT_STRING('o', "output", &output, N_("file"), | |
455 | N_("write the archive to this file")), | |
f858c646 | 456 | OPT_BOOL(0, "worktree-attributes", &worktree_attributes, |
0012a387 NTND |
457 | N_("read .gitattributes in working directory")), |
458 | OPT__VERBOSE(&verbose, N_("report archived files on stderr")), | |
459 | OPT__COMPR('0', &compression_level, N_("store only"), 0), | |
460 | OPT__COMPR('1', &compression_level, N_("compress faster"), 1), | |
4fac1d3a RS |
461 | OPT__COMPR_HIDDEN('2', &compression_level, 2), |
462 | OPT__COMPR_HIDDEN('3', &compression_level, 3), | |
463 | OPT__COMPR_HIDDEN('4', &compression_level, 4), | |
464 | OPT__COMPR_HIDDEN('5', &compression_level, 5), | |
465 | OPT__COMPR_HIDDEN('6', &compression_level, 6), | |
466 | OPT__COMPR_HIDDEN('7', &compression_level, 7), | |
467 | OPT__COMPR_HIDDEN('8', &compression_level, 8), | |
0012a387 | 468 | OPT__COMPR('9', &compression_level, N_("compress better"), 9), |
4fac1d3a | 469 | OPT_GROUP(""), |
f858c646 | 470 | OPT_BOOL('l', "list", &list, |
0012a387 | 471 | N_("list supported archive formats")), |
4fac1d3a | 472 | OPT_GROUP(""), |
0012a387 NTND |
473 | OPT_STRING(0, "remote", &remote, N_("repo"), |
474 | N_("retrieve the archive from remote repository <repo>")), | |
b0ff9654 | 475 | OPT_STRING(0, "exec", &exec, N_("command"), |
0012a387 | 476 | N_("path to the remote git-upload-archive command")), |
4fac1d3a RS |
477 | OPT_END() |
478 | }; | |
479 | ||
37782920 | 480 | argc = parse_options(argc, argv, NULL, opts, archive_usage, 0); |
4fac1d3a RS |
481 | |
482 | if (remote) | |
5a36d00c | 483 | die(_("Unexpected option --remote")); |
4fac1d3a | 484 | if (exec) |
5a36d00c | 485 | die(_("Option --exec can only be used together with --remote")); |
52e77876 | 486 | if (output) |
5a36d00c | 487 | die(_("Unexpected option --output")); |
4fac1d3a RS |
488 | |
489 | if (!base) | |
490 | base = ""; | |
491 | ||
492 | if (list) { | |
13e0f88d | 493 | for (i = 0; i < nr_archivers; i++) |
7b97730b JK |
494 | if (!is_remote || archivers[i]->flags & ARCHIVER_REMOTE) |
495 | printf("%s\n", archivers[i]->name); | |
4fac1d3a | 496 | exit(0); |
c0885435 RS |
497 | } |
498 | ||
56baa61d JK |
499 | if (!format && name_hint) |
500 | format = archive_format_from_filename(name_hint); | |
501 | if (!format) | |
502 | format = "tar"; | |
503 | ||
c0885435 | 504 | /* We need at least one parameter -- tree-ish */ |
4fac1d3a RS |
505 | if (argc < 1) |
506 | usage_with_options(archive_usage, opts); | |
c0885435 | 507 | *ar = lookup_archiver(format); |
7b97730b | 508 | if (!*ar || (is_remote && !((*ar)->flags & ARCHIVER_REMOTE))) |
5a36d00c | 509 | die(_("Unknown archive format '%s'"), format); |
c0885435 RS |
510 | |
511 | args->compression_level = Z_DEFAULT_COMPRESSION; | |
512 | if (compression_level != -1) { | |
13e0f88d | 513 | if ((*ar)->flags & ARCHIVER_WANT_COMPRESSION_LEVELS) |
c0885435 RS |
514 | args->compression_level = compression_level; |
515 | else { | |
5a36d00c | 516 | die(_("Argument not supported for format '%s': -%d"), |
c0885435 RS |
517 | format, compression_level); |
518 | } | |
519 | } | |
520 | args->verbose = verbose; | |
521 | args->base = base; | |
522 | args->baselen = strlen(base); | |
ba053ea9 | 523 | args->worktree_attributes = worktree_attributes; |
c0885435 | 524 | |
4fac1d3a | 525 | return argc; |
c0885435 RS |
526 | } |
527 | ||
6e94e683 | 528 | int write_archive(int argc, const char **argv, const char *prefix, |
eb0224c6 | 529 | const char *name_hint, int remote) |
6e94e683 RS |
530 | { |
531 | const struct archiver *ar = NULL; | |
532 | struct archiver_args args; | |
6e94e683 | 533 | |
95790ff6 TA |
534 | git_config_get_bool("uploadarchive.allowunreachable", &remote_allow_unreachable); |
535 | git_config(git_default_config, NULL); | |
536 | ||
13e0f88d JK |
537 | init_tar_archiver(); |
538 | init_zip_archiver(); | |
23212862 | 539 | |
7b97730b | 540 | argc = parse_archive_args(argc, argv, &ar, &args, name_hint, remote); |
eb0224c6 | 541 | if (!startup_info->have_repository) { |
23212862 JK |
542 | /* |
543 | * We know this will die() with an error, so we could just | |
544 | * die ourselves; but its error message will be more specific | |
545 | * than what we could write here. | |
546 | */ | |
547 | setup_git_directory(); | |
548 | } | |
6e94e683 | 549 | |
ee27ca4a | 550 | parse_treeish_arg(argv, &args, prefix, remote); |
6e94e683 RS |
551 | parse_pathspec_arg(argv + 1, &args); |
552 | ||
4d7c9898 | 553 | return ar->write_archive(ar, &args); |
6e94e683 | 554 | } |
56baa61d | 555 | |
08716b3c JK |
556 | static int match_extension(const char *filename, const char *ext) |
557 | { | |
558 | int prefixlen = strlen(filename) - strlen(ext); | |
559 | ||
560 | /* | |
561 | * We need 1 character for the '.', and 1 character to ensure that the | |
562 | * prefix is non-empty (k.e., we don't match .tar.gz with no actual | |
563 | * filename). | |
564 | */ | |
b1cdfb54 | 565 | if (prefixlen < 2 || filename[prefixlen - 1] != '.') |
08716b3c JK |
566 | return 0; |
567 | return !strcmp(filename + prefixlen, ext); | |
568 | } | |
569 | ||
56baa61d JK |
570 | const char *archive_format_from_filename(const char *filename) |
571 | { | |
08716b3c JK |
572 | int i; |
573 | ||
574 | for (i = 0; i < nr_archivers; i++) | |
575 | if (match_extension(filename, archivers[i]->name)) | |
576 | return archivers[i]->name; | |
56baa61d JK |
577 | return NULL; |
578 | } |