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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" |
cbd53a21 | 4 | #include "object-store.h" |
18125644 | 5 | #include "commit.h" |
c0885435 | 6 | #include "tree-walk.h" |
18125644 | 7 | #include "attr.h" |
562e25ab | 8 | #include "archive.h" |
4fac1d3a | 9 | #include "parse-options.h" |
ba053ea9 | 10 | #include "unpack-trees.h" |
ed22b417 | 11 | #include "dir.h" |
4fac1d3a RS |
12 | |
13 | static char const * const archive_usage[] = { | |
9c9b4f2f | 14 | N_("git archive [<options>] <tree-ish> [<path>...]"), |
0012a387 | 15 | N_("git archive --list"), |
9c9b4f2f | 16 | N_("git archive --remote <repo> [--exec <cmd>] [<options>] <tree-ish> [<path>...]"), |
0012a387 | 17 | N_("git archive --remote <repo> [--exec <cmd>] --list"), |
4fac1d3a RS |
18 | NULL |
19 | }; | |
c0885435 | 20 | |
13e0f88d JK |
21 | static const struct archiver **archivers; |
22 | static int nr_archivers; | |
23 | static int alloc_archivers; | |
7671b632 | 24 | static int remote_allow_unreachable; |
13e0f88d JK |
25 | |
26 | void register_archiver(struct archiver *ar) | |
27 | { | |
28 | ALLOC_GROW(archivers, nr_archivers + 1, alloc_archivers); | |
29 | archivers[nr_archivers++] = ar; | |
30 | } | |
c0885435 | 31 | |
18125644 LH |
32 | static void format_subst(const struct commit *commit, |
33 | const char *src, size_t len, | |
34 | struct strbuf *buf) | |
35 | { | |
36 | char *to_free = NULL; | |
f285a2d7 | 37 | struct strbuf fmt = STRBUF_INIT; |
dd2e794a | 38 | struct pretty_print_context ctx = {0}; |
a5481a6c | 39 | ctx.date_mode.type = DATE_NORMAL; |
35039ced | 40 | ctx.abbrev = DEFAULT_ABBREV; |
18125644 LH |
41 | |
42 | if (src == buf->buf) | |
43 | to_free = strbuf_detach(buf, NULL); | |
18125644 LH |
44 | for (;;) { |
45 | const char *b, *c; | |
46 | ||
47 | b = memmem(src, len, "$Format:", 8); | |
75b7dfbd | 48 | if (!b) |
18125644 | 49 | break; |
75b7dfbd | 50 | c = memchr(b + 8, '$', (src + len) - b - 8); |
18125644 LH |
51 | if (!c) |
52 | break; | |
53 | ||
54 | strbuf_reset(&fmt); | |
55 | strbuf_add(&fmt, b + 8, c - b - 8); | |
56 | ||
57 | strbuf_add(buf, src, b - src); | |
dd2e794a | 58 | format_commit_message(commit, fmt.buf, buf, &ctx); |
18125644 LH |
59 | len -= c + 1 - src; |
60 | src = c + 1; | |
61 | } | |
62 | strbuf_add(buf, src, len); | |
63 | strbuf_release(&fmt); | |
64 | free(to_free); | |
65 | } | |
66 | ||
e5ec981a | 67 | void *object_file_to_archive(const struct archiver_args *args, |
68 | const char *path, const struct object_id *oid, | |
69 | unsigned int mode, enum object_type *type, | |
70 | unsigned long *sizep) | |
18125644 LH |
71 | { |
72 | void *buffer; | |
9cb513b7 | 73 | const struct commit *commit = args->convert ? args->commit : NULL; |
18125644 | 74 | |
9cb513b7 | 75 | path += args->baselen; |
b4f5aca4 | 76 | buffer = read_object_file(oid, type, sizep); |
18125644 | 77 | if (buffer && S_ISREG(mode)) { |
f285a2d7 | 78 | struct strbuf buf = STRBUF_INIT; |
18125644 LH |
79 | size_t size = 0; |
80 | ||
18125644 | 81 | strbuf_attach(&buf, buffer, *sizep, *sizep + 1); |
b612ee20 | 82 | convert_to_working_tree(args->repo->index, path, buf.buf, buf.len, &buf); |
1d11d5bb RS |
83 | if (commit) |
84 | format_subst(commit, buf.buf, buf.len, &buf); | |
18125644 LH |
85 | buffer = strbuf_detach(&buf, &size); |
86 | *sizep = size; | |
87 | } | |
88 | ||
89 | return buffer; | |
90 | } | |
91 | ||
ed22b417 NTND |
92 | struct directory { |
93 | struct directory *up; | |
13609673 | 94 | struct object_id oid; |
ed22b417 NTND |
95 | int baselen, len; |
96 | unsigned mode; | |
97 | int stage; | |
98 | char path[FLEX_ARRAY]; | |
99 | }; | |
100 | ||
562e25ab RS |
101 | struct archiver_context { |
102 | struct archiver_args *args; | |
103 | write_archive_entry_fn_t write_entry; | |
ed22b417 | 104 | struct directory *bottom; |
562e25ab RS |
105 | }; |
106 | ||
b612ee20 NTND |
107 | static const struct attr_check *get_archive_attrs(struct index_state *istate, |
108 | const char *path) | |
c6c08f7e RS |
109 | { |
110 | static struct attr_check *check; | |
111 | if (!check) | |
112 | check = attr_check_initl("export-ignore", "export-subst", NULL); | |
b612ee20 | 113 | return git_check_attr(istate, path, check) ? NULL : check; |
c6c08f7e RS |
114 | } |
115 | ||
116 | static int check_attr_export_ignore(const struct attr_check *check) | |
117 | { | |
118 | return check && ATTR_TRUE(check->items[0].value); | |
119 | } | |
120 | ||
121 | static int check_attr_export_subst(const struct attr_check *check) | |
122 | { | |
123 | return check && ATTR_TRUE(check->items[1].value); | |
124 | } | |
125 | ||
015ff4f8 | 126 | static int write_archive_entry(const struct object_id *oid, const char *base, |
562e25ab RS |
127 | int baselen, const char *filename, unsigned mode, int stage, |
128 | void *context) | |
129 | { | |
130 | static struct strbuf path = STRBUF_INIT; | |
131 | struct archiver_context *c = context; | |
132 | struct archiver_args *args = c->args; | |
133 | write_archive_entry_fn_t write_entry = c->write_entry; | |
134 | int err; | |
5ff247ac | 135 | const char *path_without_prefix; |
562e25ab | 136 | |
9cb513b7 | 137 | args->convert = 0; |
562e25ab RS |
138 | strbuf_reset(&path); |
139 | strbuf_grow(&path, PATH_MAX); | |
ebfbdb34 | 140 | strbuf_add(&path, args->base, args->baselen); |
562e25ab RS |
141 | strbuf_add(&path, base, baselen); |
142 | strbuf_addstr(&path, filename); | |
94bc671a JNA |
143 | if (S_ISDIR(mode) || S_ISGITLINK(mode)) |
144 | strbuf_addch(&path, '/'); | |
1d11d5bb | 145 | path_without_prefix = path.buf + args->baselen; |
562e25ab | 146 | |
43180940 | 147 | if (!S_ISDIR(mode)) { |
5ff247ac | 148 | const struct attr_check *check; |
b612ee20 | 149 | check = get_archive_attrs(args->repo->index, path_without_prefix); |
5ff247ac | 150 | if (check_attr_export_ignore(check)) |
1d11d5bb | 151 | return 0; |
5ff247ac | 152 | args->convert = check_attr_export_subst(check); |
1d11d5bb | 153 | } |
562e25ab RS |
154 | |
155 | if (S_ISDIR(mode) || S_ISGITLINK(mode)) { | |
562e25ab RS |
156 | if (args->verbose) |
157 | fprintf(stderr, "%.*s\n", (int)path.len, path.buf); | |
015ff4f8 | 158 | err = write_entry(args, oid, path.buf, path.len, mode); |
562e25ab RS |
159 | if (err) |
160 | return err; | |
d3bee161 | 161 | return (S_ISDIR(mode) ? READ_TREE_RECURSIVE : 0); |
562e25ab RS |
162 | } |
163 | ||
562e25ab RS |
164 | if (args->verbose) |
165 | fprintf(stderr, "%.*s\n", (int)path.len, path.buf); | |
015ff4f8 | 166 | return write_entry(args, oid, path.buf, path.len, mode); |
562e25ab RS |
167 | } |
168 | ||
ed22b417 | 169 | static void queue_directory(const unsigned char *sha1, |
6a0b0b6d | 170 | struct strbuf *base, const char *filename, |
ed22b417 NTND |
171 | unsigned mode, int stage, struct archiver_context *c) |
172 | { | |
173 | struct directory *d; | |
50a6c8ef JK |
174 | size_t len = st_add4(base->len, 1, strlen(filename), 1); |
175 | d = xmalloc(st_add(sizeof(*d), len)); | |
ed22b417 | 176 | d->up = c->bottom; |
6a0b0b6d | 177 | d->baselen = base->len; |
ed22b417 NTND |
178 | d->mode = mode; |
179 | d->stage = stage; | |
180 | c->bottom = d; | |
c7ab0ba3 | 181 | d->len = xsnprintf(d->path, len, "%.*s%s/", (int)base->len, base->buf, filename); |
13609673 | 182 | hashcpy(d->oid.hash, sha1); |
ed22b417 NTND |
183 | } |
184 | ||
185 | static int write_directory(struct archiver_context *c) | |
186 | { | |
187 | struct directory *d = c->bottom; | |
188 | int ret; | |
189 | ||
190 | if (!d) | |
191 | return 0; | |
192 | c->bottom = d->up; | |
193 | d->path[d->len - 1] = '\0'; /* no trailing slash */ | |
194 | ret = | |
195 | write_directory(c) || | |
015ff4f8 | 196 | write_archive_entry(&d->oid, d->path, d->baselen, |
ed22b417 NTND |
197 | d->path + d->baselen, d->mode, |
198 | d->stage, c) != READ_TREE_RECURSIVE; | |
199 | free(d); | |
200 | return ret ? -1 : 0; | |
201 | } | |
202 | ||
df46d77e | 203 | static int queue_or_write_archive_entry(const struct object_id *oid, |
6a0b0b6d | 204 | struct strbuf *base, const char *filename, |
ed22b417 NTND |
205 | unsigned mode, int stage, void *context) |
206 | { | |
207 | struct archiver_context *c = context; | |
208 | ||
209 | while (c->bottom && | |
6a0b0b6d NTND |
210 | !(base->len >= c->bottom->len && |
211 | !strncmp(base->buf, c->bottom->path, c->bottom->len))) { | |
ed22b417 NTND |
212 | struct directory *next = c->bottom->up; |
213 | free(c->bottom); | |
214 | c->bottom = next; | |
215 | } | |
216 | ||
217 | if (S_ISDIR(mode)) { | |
5ff247ac RS |
218 | size_t baselen = base->len; |
219 | const struct attr_check *check; | |
220 | ||
221 | /* Borrow base, but restore its original value when done. */ | |
222 | strbuf_addstr(base, filename); | |
223 | strbuf_addch(base, '/'); | |
b612ee20 | 224 | check = get_archive_attrs(c->args->repo->index, base->buf); |
5ff247ac RS |
225 | strbuf_setlen(base, baselen); |
226 | ||
227 | if (check_attr_export_ignore(check)) | |
228 | return 0; | |
df46d77e | 229 | queue_directory(oid->hash, base, filename, |
ed22b417 NTND |
230 | mode, stage, c); |
231 | return READ_TREE_RECURSIVE; | |
232 | } | |
233 | ||
234 | if (write_directory(c)) | |
235 | return -1; | |
015ff4f8 | 236 | return write_archive_entry(oid, base->buf, base->len, filename, mode, |
ed22b417 NTND |
237 | stage, context); |
238 | } | |
239 | ||
562e25ab RS |
240 | int write_archive_entries(struct archiver_args *args, |
241 | write_archive_entry_fn_t write_entry) | |
242 | { | |
243 | struct archiver_context context; | |
ba053ea9 NTND |
244 | struct unpack_trees_options opts; |
245 | struct tree_desc t; | |
562e25ab RS |
246 | int err; |
247 | ||
248 | if (args->baselen > 0 && args->base[args->baselen - 1] == '/') { | |
249 | size_t len = args->baselen; | |
250 | ||
251 | while (len > 1 && args->base[len - 2] == '/') | |
252 | len--; | |
253 | if (args->verbose) | |
254 | fprintf(stderr, "%.*s\n", (int)len, args->base); | |
015ff4f8 | 255 | err = write_entry(args, &args->tree->object.oid, args->base, |
9cb513b7 | 256 | len, 040777); |
562e25ab RS |
257 | if (err) |
258 | return err; | |
259 | } | |
260 | ||
ed22b417 | 261 | memset(&context, 0, sizeof(context)); |
562e25ab RS |
262 | context.args = args; |
263 | context.write_entry = write_entry; | |
264 | ||
ba053ea9 NTND |
265 | /* |
266 | * Setup index and instruct attr to read index only | |
267 | */ | |
268 | if (!args->worktree_attributes) { | |
269 | memset(&opts, 0, sizeof(opts)); | |
270 | opts.index_only = 1; | |
271 | opts.head_idx = -1; | |
b612ee20 NTND |
272 | opts.src_index = args->repo->index; |
273 | opts.dst_index = args->repo->index; | |
ba053ea9 NTND |
274 | opts.fn = oneway_merge; |
275 | init_tree_desc(&t, args->tree->buffer, args->tree->size); | |
276 | if (unpack_trees(1, &t, &opts)) | |
277 | return -1; | |
c4500e25 | 278 | git_attr_set_direction(GIT_ATTR_INDEX); |
ba053ea9 NTND |
279 | } |
280 | ||
f3e743a0 | 281 | err = read_tree_recursive(args->tree, "", 0, 0, &args->pathspec, |
43180940 | 282 | queue_or_write_archive_entry, |
ed22b417 | 283 | &context); |
562e25ab RS |
284 | if (err == READ_TREE_RECURSIVE) |
285 | err = 0; | |
ed22b417 NTND |
286 | while (context.bottom) { |
287 | struct directory *next = context.bottom->up; | |
288 | free(context.bottom); | |
289 | context.bottom = next; | |
290 | } | |
562e25ab RS |
291 | return err; |
292 | } | |
6e94e683 | 293 | |
c0885435 RS |
294 | static const struct archiver *lookup_archiver(const char *name) |
295 | { | |
296 | int i; | |
297 | ||
4fac1d3a RS |
298 | if (!name) |
299 | return NULL; | |
300 | ||
13e0f88d JK |
301 | for (i = 0; i < nr_archivers; i++) { |
302 | if (!strcmp(name, archivers[i]->name)) | |
303 | return archivers[i]; | |
c0885435 RS |
304 | } |
305 | return NULL; | |
306 | } | |
307 | ||
b612ee20 NTND |
308 | struct path_exists_context { |
309 | struct pathspec pathspec; | |
310 | struct archiver_args *args; | |
311 | }; | |
312 | ||
df46d77e | 313 | static int reject_entry(const struct object_id *oid, struct strbuf *base, |
6a0b0b6d | 314 | const char *filename, unsigned mode, |
d5f53d6d RS |
315 | int stage, void *context) |
316 | { | |
ed22b417 | 317 | int ret = -1; |
b612ee20 NTND |
318 | struct path_exists_context *ctx = context; |
319 | ||
ed22b417 NTND |
320 | if (S_ISDIR(mode)) { |
321 | struct strbuf sb = STRBUF_INIT; | |
6a0b0b6d | 322 | strbuf_addbuf(&sb, base); |
ed22b417 | 323 | strbuf_addstr(&sb, filename); |
b612ee20 NTND |
324 | if (!match_pathspec(ctx->args->repo->index, |
325 | &ctx->pathspec, | |
326 | sb.buf, sb.len, 0, NULL, 1)) | |
ed22b417 NTND |
327 | ret = READ_TREE_RECURSIVE; |
328 | strbuf_release(&sb); | |
329 | } | |
330 | return ret; | |
d5f53d6d RS |
331 | } |
332 | ||
b612ee20 | 333 | static int path_exists(struct archiver_args *args, const char *path) |
d5f53d6d | 334 | { |
f0096c06 | 335 | const char *paths[] = { path, NULL }; |
b612ee20 | 336 | struct path_exists_context ctx; |
f0096c06 NTND |
337 | int ret; |
338 | ||
b612ee20 NTND |
339 | ctx.args = args; |
340 | parse_pathspec(&ctx.pathspec, 0, 0, "", paths); | |
341 | ctx.pathspec.recursive = 1; | |
342 | ret = read_tree_recursive(args->tree, "", 0, 0, &ctx.pathspec, | |
343 | reject_entry, &ctx); | |
344 | clear_pathspec(&ctx.pathspec); | |
f0096c06 | 345 | return ret != 0; |
d5f53d6d RS |
346 | } |
347 | ||
c0885435 RS |
348 | static void parse_pathspec_arg(const char **pathspec, |
349 | struct archiver_args *ar_args) | |
350 | { | |
f3e743a0 NTND |
351 | /* |
352 | * must be consistent with parse_pathspec in path_exists() | |
353 | * Also if pathspec patterns are dependent, we're in big | |
354 | * trouble as we test each one separately | |
355 | */ | |
356 | parse_pathspec(&ar_args->pathspec, 0, | |
357 | PATHSPEC_PREFER_FULL, | |
358 | "", pathspec); | |
ed22b417 | 359 | ar_args->pathspec.recursive = 1; |
d5f53d6d RS |
360 | if (pathspec) { |
361 | while (*pathspec) { | |
b612ee20 | 362 | if (**pathspec && !path_exists(ar_args, *pathspec)) |
f3e743a0 | 363 | die(_("pathspec '%s' did not match any files"), *pathspec); |
d5f53d6d RS |
364 | pathspec++; |
365 | } | |
366 | } | |
c0885435 RS |
367 | } |
368 | ||
369 | static void parse_treeish_arg(const char **argv, | |
ee27ca4a JK |
370 | struct archiver_args *ar_args, const char *prefix, |
371 | int remote) | |
c0885435 RS |
372 | { |
373 | const char *name = argv[0]; | |
374 | const unsigned char *commit_sha1; | |
375 | time_t archive_time; | |
376 | struct tree *tree; | |
377 | const struct commit *commit; | |
13609673 | 378 | struct object_id oid; |
c0885435 | 379 | |
ee27ca4a | 380 | /* Remotes are only allowed to fetch actual refs */ |
7671b632 | 381 | if (remote && !remote_allow_unreachable) { |
ee27ca4a | 382 | char *ref = NULL; |
2c5495f7 RM |
383 | const char *colon = strchrnul(name, ':'); |
384 | int refnamelen = colon - name; | |
c51a351a | 385 | |
cca5fa64 | 386 | if (!dwim_ref(name, refnamelen, &oid, &ref)) |
c51a351a | 387 | die("no such ref: %.*s", refnamelen, name); |
ee27ca4a JK |
388 | free(ref); |
389 | } | |
0f544ee8 | 390 | |
e82caf38 | 391 | if (get_oid(name, &oid)) |
0f544ee8 | 392 | die("Not a valid object name"); |
c0885435 | 393 | |
21e1ee8f | 394 | commit = lookup_commit_reference_gently(the_repository, &oid, 1); |
c0885435 | 395 | if (commit) { |
ed1c9977 | 396 | commit_sha1 = commit->object.oid.hash; |
c0885435 RS |
397 | archive_time = commit->date; |
398 | } else { | |
399 | commit_sha1 = NULL; | |
400 | archive_time = time(NULL); | |
401 | } | |
402 | ||
a9dbc179 | 403 | tree = parse_tree_indirect(&oid); |
c0885435 RS |
404 | if (tree == NULL) |
405 | die("not a tree object"); | |
406 | ||
407 | if (prefix) { | |
13609673 | 408 | struct object_id tree_oid; |
c0885435 RS |
409 | unsigned int mode; |
410 | int err; | |
411 | ||
916bc35b | 412 | err = get_tree_entry(&tree->object.oid, prefix, &tree_oid, |
413 | &mode); | |
c0885435 RS |
414 | if (err || !S_ISDIR(mode)) |
415 | die("current working directory is untracked"); | |
416 | ||
a9dbc179 | 417 | tree = parse_tree_indirect(&tree_oid); |
c0885435 RS |
418 | } |
419 | ar_args->tree = tree; | |
420 | ar_args->commit_sha1 = commit_sha1; | |
421 | ar_args->commit = commit; | |
422 | ar_args->time = archive_time; | |
423 | } | |
424 | ||
4fac1d3a | 425 | #define OPT__COMPR(s, v, h, p) \ |
3e4a67b4 | 426 | OPT_SET_INT_F(s, NULL, v, h, p, PARSE_OPT_NONEG) |
4fac1d3a | 427 | #define OPT__COMPR_HIDDEN(s, v, p) \ |
3e4a67b4 | 428 | OPT_SET_INT_F(s, NULL, v, "", p, PARSE_OPT_NONEG | PARSE_OPT_HIDDEN) |
4fac1d3a | 429 | |
c0885435 | 430 | static int parse_archive_args(int argc, const char **argv, |
56baa61d | 431 | const struct archiver **ar, struct archiver_args *args, |
7b97730b | 432 | const char *name_hint, int is_remote) |
c0885435 | 433 | { |
56baa61d | 434 | const char *format = NULL; |
4fac1d3a RS |
435 | const char *base = NULL; |
436 | const char *remote = NULL; | |
437 | const char *exec = NULL; | |
aec0c1bb | 438 | const char *output = NULL; |
c0885435 RS |
439 | int compression_level = -1; |
440 | int verbose = 0; | |
441 | int i; | |
4fac1d3a | 442 | int list = 0; |
ba053ea9 | 443 | int worktree_attributes = 0; |
4fac1d3a RS |
444 | struct option opts[] = { |
445 | OPT_GROUP(""), | |
0012a387 NTND |
446 | OPT_STRING(0, "format", &format, N_("fmt"), N_("archive format")), |
447 | OPT_STRING(0, "prefix", &base, N_("prefix"), | |
448 | N_("prepend prefix to each pathname in the archive")), | |
449 | OPT_STRING('o', "output", &output, N_("file"), | |
450 | N_("write the archive to this file")), | |
f858c646 | 451 | OPT_BOOL(0, "worktree-attributes", &worktree_attributes, |
0012a387 NTND |
452 | N_("read .gitattributes in working directory")), |
453 | OPT__VERBOSE(&verbose, N_("report archived files on stderr")), | |
454 | OPT__COMPR('0', &compression_level, N_("store only"), 0), | |
455 | OPT__COMPR('1', &compression_level, N_("compress faster"), 1), | |
4fac1d3a RS |
456 | OPT__COMPR_HIDDEN('2', &compression_level, 2), |
457 | OPT__COMPR_HIDDEN('3', &compression_level, 3), | |
458 | OPT__COMPR_HIDDEN('4', &compression_level, 4), | |
459 | OPT__COMPR_HIDDEN('5', &compression_level, 5), | |
460 | OPT__COMPR_HIDDEN('6', &compression_level, 6), | |
461 | OPT__COMPR_HIDDEN('7', &compression_level, 7), | |
462 | OPT__COMPR_HIDDEN('8', &compression_level, 8), | |
0012a387 | 463 | OPT__COMPR('9', &compression_level, N_("compress better"), 9), |
4fac1d3a | 464 | OPT_GROUP(""), |
f858c646 | 465 | OPT_BOOL('l', "list", &list, |
0012a387 | 466 | N_("list supported archive formats")), |
4fac1d3a | 467 | OPT_GROUP(""), |
0012a387 NTND |
468 | OPT_STRING(0, "remote", &remote, N_("repo"), |
469 | N_("retrieve the archive from remote repository <repo>")), | |
b0ff9654 | 470 | OPT_STRING(0, "exec", &exec, N_("command"), |
0012a387 | 471 | N_("path to the remote git-upload-archive command")), |
4fac1d3a RS |
472 | OPT_END() |
473 | }; | |
474 | ||
37782920 | 475 | argc = parse_options(argc, argv, NULL, opts, archive_usage, 0); |
4fac1d3a RS |
476 | |
477 | if (remote) | |
5a36d00c | 478 | die(_("Unexpected option --remote")); |
4fac1d3a | 479 | if (exec) |
5a36d00c | 480 | die(_("Option --exec can only be used together with --remote")); |
52e77876 | 481 | if (output) |
5a36d00c | 482 | die(_("Unexpected option --output")); |
4fac1d3a RS |
483 | |
484 | if (!base) | |
485 | base = ""; | |
486 | ||
487 | if (list) { | |
13e0f88d | 488 | for (i = 0; i < nr_archivers; i++) |
7b97730b JK |
489 | if (!is_remote || archivers[i]->flags & ARCHIVER_REMOTE) |
490 | printf("%s\n", archivers[i]->name); | |
4fac1d3a | 491 | exit(0); |
c0885435 RS |
492 | } |
493 | ||
56baa61d JK |
494 | if (!format && name_hint) |
495 | format = archive_format_from_filename(name_hint); | |
496 | if (!format) | |
497 | format = "tar"; | |
498 | ||
c0885435 | 499 | /* We need at least one parameter -- tree-ish */ |
4fac1d3a RS |
500 | if (argc < 1) |
501 | usage_with_options(archive_usage, opts); | |
c0885435 | 502 | *ar = lookup_archiver(format); |
7b97730b | 503 | if (!*ar || (is_remote && !((*ar)->flags & ARCHIVER_REMOTE))) |
5a36d00c | 504 | die(_("Unknown archive format '%s'"), format); |
c0885435 RS |
505 | |
506 | args->compression_level = Z_DEFAULT_COMPRESSION; | |
507 | if (compression_level != -1) { | |
13e0f88d | 508 | if ((*ar)->flags & ARCHIVER_WANT_COMPRESSION_LEVELS) |
c0885435 RS |
509 | args->compression_level = compression_level; |
510 | else { | |
5a36d00c | 511 | die(_("Argument not supported for format '%s': -%d"), |
c0885435 RS |
512 | format, compression_level); |
513 | } | |
514 | } | |
515 | args->verbose = verbose; | |
516 | args->base = base; | |
517 | args->baselen = strlen(base); | |
ba053ea9 | 518 | args->worktree_attributes = worktree_attributes; |
c0885435 | 519 | |
4fac1d3a | 520 | return argc; |
c0885435 RS |
521 | } |
522 | ||
6e94e683 | 523 | int write_archive(int argc, const char **argv, const char *prefix, |
b612ee20 | 524 | struct repository *repo, |
eb0224c6 | 525 | const char *name_hint, int remote) |
6e94e683 RS |
526 | { |
527 | const struct archiver *ar = NULL; | |
528 | struct archiver_args args; | |
6e94e683 | 529 | |
95790ff6 TA |
530 | git_config_get_bool("uploadarchive.allowunreachable", &remote_allow_unreachable); |
531 | git_config(git_default_config, NULL); | |
532 | ||
13e0f88d JK |
533 | init_tar_archiver(); |
534 | init_zip_archiver(); | |
23212862 | 535 | |
b612ee20 | 536 | args.repo = repo; |
7b97730b | 537 | argc = parse_archive_args(argc, argv, &ar, &args, name_hint, remote); |
eb0224c6 | 538 | if (!startup_info->have_repository) { |
23212862 JK |
539 | /* |
540 | * We know this will die() with an error, so we could just | |
541 | * die ourselves; but its error message will be more specific | |
542 | * than what we could write here. | |
543 | */ | |
544 | setup_git_directory(); | |
545 | } | |
6e94e683 | 546 | |
ee27ca4a | 547 | parse_treeish_arg(argv, &args, prefix, remote); |
6e94e683 RS |
548 | parse_pathspec_arg(argv + 1, &args); |
549 | ||
4d7c9898 | 550 | return ar->write_archive(ar, &args); |
6e94e683 | 551 | } |
56baa61d | 552 | |
08716b3c JK |
553 | static int match_extension(const char *filename, const char *ext) |
554 | { | |
555 | int prefixlen = strlen(filename) - strlen(ext); | |
556 | ||
557 | /* | |
558 | * We need 1 character for the '.', and 1 character to ensure that the | |
559 | * prefix is non-empty (k.e., we don't match .tar.gz with no actual | |
560 | * filename). | |
561 | */ | |
b1cdfb54 | 562 | if (prefixlen < 2 || filename[prefixlen - 1] != '.') |
08716b3c JK |
563 | return 0; |
564 | return !strcmp(filename + prefixlen, ext); | |
565 | } | |
566 | ||
56baa61d JK |
567 | const char *archive_format_from_filename(const char *filename) |
568 | { | |
08716b3c JK |
569 | int i; |
570 | ||
571 | for (i = 0; i < nr_archivers; i++) | |
572 | if (match_extension(filename, archivers[i]->name)) | |
573 | return archivers[i]->name; | |
56baa61d JK |
574 | return NULL; |
575 | } |