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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); | |
d64324cb TB |
113 | git_check_attr(istate, path, check); |
114 | return check; | |
c6c08f7e RS |
115 | } |
116 | ||
117 | static int check_attr_export_ignore(const struct attr_check *check) | |
118 | { | |
119 | return check && ATTR_TRUE(check->items[0].value); | |
120 | } | |
121 | ||
122 | static int check_attr_export_subst(const struct attr_check *check) | |
123 | { | |
124 | return check && ATTR_TRUE(check->items[1].value); | |
125 | } | |
126 | ||
015ff4f8 | 127 | static int write_archive_entry(const struct object_id *oid, const char *base, |
562e25ab RS |
128 | int baselen, const char *filename, unsigned mode, int stage, |
129 | void *context) | |
130 | { | |
131 | static struct strbuf path = STRBUF_INIT; | |
132 | struct archiver_context *c = context; | |
133 | struct archiver_args *args = c->args; | |
134 | write_archive_entry_fn_t write_entry = c->write_entry; | |
135 | int err; | |
5ff247ac | 136 | const char *path_without_prefix; |
562e25ab | 137 | |
9cb513b7 | 138 | args->convert = 0; |
562e25ab RS |
139 | strbuf_reset(&path); |
140 | strbuf_grow(&path, PATH_MAX); | |
ebfbdb34 | 141 | strbuf_add(&path, args->base, args->baselen); |
562e25ab RS |
142 | strbuf_add(&path, base, baselen); |
143 | strbuf_addstr(&path, filename); | |
94bc671a JNA |
144 | if (S_ISDIR(mode) || S_ISGITLINK(mode)) |
145 | strbuf_addch(&path, '/'); | |
1d11d5bb | 146 | path_without_prefix = path.buf + args->baselen; |
562e25ab | 147 | |
43180940 | 148 | if (!S_ISDIR(mode)) { |
5ff247ac | 149 | const struct attr_check *check; |
b612ee20 | 150 | check = get_archive_attrs(args->repo->index, path_without_prefix); |
5ff247ac | 151 | if (check_attr_export_ignore(check)) |
1d11d5bb | 152 | return 0; |
5ff247ac | 153 | args->convert = check_attr_export_subst(check); |
1d11d5bb | 154 | } |
562e25ab RS |
155 | |
156 | if (S_ISDIR(mode) || S_ISGITLINK(mode)) { | |
562e25ab RS |
157 | if (args->verbose) |
158 | fprintf(stderr, "%.*s\n", (int)path.len, path.buf); | |
015ff4f8 | 159 | err = write_entry(args, oid, path.buf, path.len, mode); |
562e25ab RS |
160 | if (err) |
161 | return err; | |
d3bee161 | 162 | return (S_ISDIR(mode) ? READ_TREE_RECURSIVE : 0); |
562e25ab RS |
163 | } |
164 | ||
562e25ab RS |
165 | if (args->verbose) |
166 | fprintf(stderr, "%.*s\n", (int)path.len, path.buf); | |
015ff4f8 | 167 | return write_entry(args, oid, path.buf, path.len, mode); |
562e25ab RS |
168 | } |
169 | ||
ed22b417 | 170 | static void queue_directory(const unsigned char *sha1, |
6a0b0b6d | 171 | struct strbuf *base, const char *filename, |
ed22b417 NTND |
172 | unsigned mode, int stage, struct archiver_context *c) |
173 | { | |
174 | struct directory *d; | |
50a6c8ef JK |
175 | size_t len = st_add4(base->len, 1, strlen(filename), 1); |
176 | d = xmalloc(st_add(sizeof(*d), len)); | |
ed22b417 | 177 | d->up = c->bottom; |
6a0b0b6d | 178 | d->baselen = base->len; |
ed22b417 NTND |
179 | d->mode = mode; |
180 | d->stage = stage; | |
181 | c->bottom = d; | |
c7ab0ba3 | 182 | d->len = xsnprintf(d->path, len, "%.*s%s/", (int)base->len, base->buf, filename); |
13609673 | 183 | hashcpy(d->oid.hash, sha1); |
ed22b417 NTND |
184 | } |
185 | ||
186 | static int write_directory(struct archiver_context *c) | |
187 | { | |
188 | struct directory *d = c->bottom; | |
189 | int ret; | |
190 | ||
191 | if (!d) | |
192 | return 0; | |
193 | c->bottom = d->up; | |
194 | d->path[d->len - 1] = '\0'; /* no trailing slash */ | |
195 | ret = | |
196 | write_directory(c) || | |
015ff4f8 | 197 | write_archive_entry(&d->oid, d->path, d->baselen, |
ed22b417 NTND |
198 | d->path + d->baselen, d->mode, |
199 | d->stage, c) != READ_TREE_RECURSIVE; | |
200 | free(d); | |
201 | return ret ? -1 : 0; | |
202 | } | |
203 | ||
df46d77e | 204 | static int queue_or_write_archive_entry(const struct object_id *oid, |
6a0b0b6d | 205 | struct strbuf *base, const char *filename, |
ed22b417 NTND |
206 | unsigned mode, int stage, void *context) |
207 | { | |
208 | struct archiver_context *c = context; | |
209 | ||
210 | while (c->bottom && | |
6a0b0b6d NTND |
211 | !(base->len >= c->bottom->len && |
212 | !strncmp(base->buf, c->bottom->path, c->bottom->len))) { | |
ed22b417 NTND |
213 | struct directory *next = c->bottom->up; |
214 | free(c->bottom); | |
215 | c->bottom = next; | |
216 | } | |
217 | ||
218 | if (S_ISDIR(mode)) { | |
5ff247ac RS |
219 | size_t baselen = base->len; |
220 | const struct attr_check *check; | |
221 | ||
222 | /* Borrow base, but restore its original value when done. */ | |
223 | strbuf_addstr(base, filename); | |
224 | strbuf_addch(base, '/'); | |
b612ee20 | 225 | check = get_archive_attrs(c->args->repo->index, base->buf); |
5ff247ac RS |
226 | strbuf_setlen(base, baselen); |
227 | ||
228 | if (check_attr_export_ignore(check)) | |
229 | return 0; | |
df46d77e | 230 | queue_directory(oid->hash, base, filename, |
ed22b417 NTND |
231 | mode, stage, c); |
232 | return READ_TREE_RECURSIVE; | |
233 | } | |
234 | ||
235 | if (write_directory(c)) | |
236 | return -1; | |
015ff4f8 | 237 | return write_archive_entry(oid, base->buf, base->len, filename, mode, |
ed22b417 NTND |
238 | stage, context); |
239 | } | |
240 | ||
562e25ab RS |
241 | int write_archive_entries(struct archiver_args *args, |
242 | write_archive_entry_fn_t write_entry) | |
243 | { | |
244 | struct archiver_context context; | |
ba053ea9 NTND |
245 | struct unpack_trees_options opts; |
246 | struct tree_desc t; | |
562e25ab RS |
247 | int err; |
248 | ||
249 | if (args->baselen > 0 && args->base[args->baselen - 1] == '/') { | |
250 | size_t len = args->baselen; | |
251 | ||
252 | while (len > 1 && args->base[len - 2] == '/') | |
253 | len--; | |
254 | if (args->verbose) | |
255 | fprintf(stderr, "%.*s\n", (int)len, args->base); | |
015ff4f8 | 256 | err = write_entry(args, &args->tree->object.oid, args->base, |
9cb513b7 | 257 | len, 040777); |
562e25ab RS |
258 | if (err) |
259 | return err; | |
260 | } | |
261 | ||
ed22b417 | 262 | memset(&context, 0, sizeof(context)); |
562e25ab RS |
263 | context.args = args; |
264 | context.write_entry = write_entry; | |
265 | ||
ba053ea9 NTND |
266 | /* |
267 | * Setup index and instruct attr to read index only | |
268 | */ | |
269 | if (!args->worktree_attributes) { | |
270 | memset(&opts, 0, sizeof(opts)); | |
271 | opts.index_only = 1; | |
272 | opts.head_idx = -1; | |
b612ee20 NTND |
273 | opts.src_index = args->repo->index; |
274 | opts.dst_index = args->repo->index; | |
ba053ea9 NTND |
275 | opts.fn = oneway_merge; |
276 | init_tree_desc(&t, args->tree->buffer, args->tree->size); | |
277 | if (unpack_trees(1, &t, &opts)) | |
278 | return -1; | |
c4500e25 | 279 | git_attr_set_direction(GIT_ATTR_INDEX); |
ba053ea9 NTND |
280 | } |
281 | ||
f3e743a0 | 282 | err = read_tree_recursive(args->tree, "", 0, 0, &args->pathspec, |
43180940 | 283 | queue_or_write_archive_entry, |
ed22b417 | 284 | &context); |
562e25ab RS |
285 | if (err == READ_TREE_RECURSIVE) |
286 | err = 0; | |
ed22b417 NTND |
287 | while (context.bottom) { |
288 | struct directory *next = context.bottom->up; | |
289 | free(context.bottom); | |
290 | context.bottom = next; | |
291 | } | |
562e25ab RS |
292 | return err; |
293 | } | |
6e94e683 | 294 | |
c0885435 RS |
295 | static const struct archiver *lookup_archiver(const char *name) |
296 | { | |
297 | int i; | |
298 | ||
4fac1d3a RS |
299 | if (!name) |
300 | return NULL; | |
301 | ||
13e0f88d JK |
302 | for (i = 0; i < nr_archivers; i++) { |
303 | if (!strcmp(name, archivers[i]->name)) | |
304 | return archivers[i]; | |
c0885435 RS |
305 | } |
306 | return NULL; | |
307 | } | |
308 | ||
b612ee20 NTND |
309 | struct path_exists_context { |
310 | struct pathspec pathspec; | |
311 | struct archiver_args *args; | |
312 | }; | |
313 | ||
df46d77e | 314 | static int reject_entry(const struct object_id *oid, struct strbuf *base, |
6a0b0b6d | 315 | const char *filename, unsigned mode, |
d5f53d6d RS |
316 | int stage, void *context) |
317 | { | |
ed22b417 | 318 | int ret = -1; |
b612ee20 NTND |
319 | struct path_exists_context *ctx = context; |
320 | ||
ed22b417 NTND |
321 | if (S_ISDIR(mode)) { |
322 | struct strbuf sb = STRBUF_INIT; | |
6a0b0b6d | 323 | strbuf_addbuf(&sb, base); |
ed22b417 | 324 | strbuf_addstr(&sb, filename); |
b612ee20 NTND |
325 | if (!match_pathspec(ctx->args->repo->index, |
326 | &ctx->pathspec, | |
327 | sb.buf, sb.len, 0, NULL, 1)) | |
ed22b417 NTND |
328 | ret = READ_TREE_RECURSIVE; |
329 | strbuf_release(&sb); | |
330 | } | |
331 | return ret; | |
d5f53d6d RS |
332 | } |
333 | ||
b612ee20 | 334 | static int path_exists(struct archiver_args *args, const char *path) |
d5f53d6d | 335 | { |
f0096c06 | 336 | const char *paths[] = { path, NULL }; |
b612ee20 | 337 | struct path_exists_context ctx; |
f0096c06 NTND |
338 | int ret; |
339 | ||
b612ee20 NTND |
340 | ctx.args = args; |
341 | parse_pathspec(&ctx.pathspec, 0, 0, "", paths); | |
342 | ctx.pathspec.recursive = 1; | |
343 | ret = read_tree_recursive(args->tree, "", 0, 0, &ctx.pathspec, | |
344 | reject_entry, &ctx); | |
345 | clear_pathspec(&ctx.pathspec); | |
f0096c06 | 346 | return ret != 0; |
d5f53d6d RS |
347 | } |
348 | ||
c0885435 RS |
349 | static void parse_pathspec_arg(const char **pathspec, |
350 | struct archiver_args *ar_args) | |
351 | { | |
f3e743a0 NTND |
352 | /* |
353 | * must be consistent with parse_pathspec in path_exists() | |
354 | * Also if pathspec patterns are dependent, we're in big | |
355 | * trouble as we test each one separately | |
356 | */ | |
357 | parse_pathspec(&ar_args->pathspec, 0, | |
358 | PATHSPEC_PREFER_FULL, | |
359 | "", pathspec); | |
ed22b417 | 360 | ar_args->pathspec.recursive = 1; |
d5f53d6d RS |
361 | if (pathspec) { |
362 | while (*pathspec) { | |
b612ee20 | 363 | if (**pathspec && !path_exists(ar_args, *pathspec)) |
f3e743a0 | 364 | die(_("pathspec '%s' did not match any files"), *pathspec); |
d5f53d6d RS |
365 | pathspec++; |
366 | } | |
367 | } | |
c0885435 RS |
368 | } |
369 | ||
370 | static void parse_treeish_arg(const char **argv, | |
ee27ca4a JK |
371 | struct archiver_args *ar_args, const char *prefix, |
372 | int remote) | |
c0885435 RS |
373 | { |
374 | const char *name = argv[0]; | |
375 | const unsigned char *commit_sha1; | |
376 | time_t archive_time; | |
377 | struct tree *tree; | |
378 | const struct commit *commit; | |
13609673 | 379 | struct object_id oid; |
c0885435 | 380 | |
ee27ca4a | 381 | /* Remotes are only allowed to fetch actual refs */ |
7671b632 | 382 | if (remote && !remote_allow_unreachable) { |
ee27ca4a | 383 | char *ref = NULL; |
2c5495f7 RM |
384 | const char *colon = strchrnul(name, ':'); |
385 | int refnamelen = colon - name; | |
c51a351a | 386 | |
cca5fa64 | 387 | if (!dwim_ref(name, refnamelen, &oid, &ref)) |
c51a351a | 388 | die("no such ref: %.*s", refnamelen, name); |
ee27ca4a JK |
389 | free(ref); |
390 | } | |
0f544ee8 | 391 | |
e82caf38 | 392 | if (get_oid(name, &oid)) |
0f544ee8 | 393 | die("Not a valid object name"); |
c0885435 | 394 | |
21e1ee8f | 395 | commit = lookup_commit_reference_gently(the_repository, &oid, 1); |
c0885435 | 396 | if (commit) { |
ed1c9977 | 397 | commit_sha1 = commit->object.oid.hash; |
c0885435 RS |
398 | archive_time = commit->date; |
399 | } else { | |
400 | commit_sha1 = NULL; | |
401 | archive_time = time(NULL); | |
402 | } | |
403 | ||
a9dbc179 | 404 | tree = parse_tree_indirect(&oid); |
c0885435 RS |
405 | if (tree == NULL) |
406 | die("not a tree object"); | |
407 | ||
408 | if (prefix) { | |
13609673 | 409 | struct object_id tree_oid; |
c0885435 RS |
410 | unsigned int mode; |
411 | int err; | |
412 | ||
916bc35b | 413 | err = get_tree_entry(&tree->object.oid, prefix, &tree_oid, |
414 | &mode); | |
c0885435 RS |
415 | if (err || !S_ISDIR(mode)) |
416 | die("current working directory is untracked"); | |
417 | ||
a9dbc179 | 418 | tree = parse_tree_indirect(&tree_oid); |
c0885435 RS |
419 | } |
420 | ar_args->tree = tree; | |
421 | ar_args->commit_sha1 = commit_sha1; | |
422 | ar_args->commit = commit; | |
423 | ar_args->time = archive_time; | |
424 | } | |
425 | ||
4fac1d3a | 426 | #define OPT__COMPR(s, v, h, p) \ |
3e4a67b4 | 427 | OPT_SET_INT_F(s, NULL, v, h, p, PARSE_OPT_NONEG) |
4fac1d3a | 428 | #define OPT__COMPR_HIDDEN(s, v, p) \ |
3e4a67b4 | 429 | OPT_SET_INT_F(s, NULL, v, "", p, PARSE_OPT_NONEG | PARSE_OPT_HIDDEN) |
4fac1d3a | 430 | |
c0885435 | 431 | static int parse_archive_args(int argc, const char **argv, |
56baa61d | 432 | const struct archiver **ar, struct archiver_args *args, |
7b97730b | 433 | const char *name_hint, int is_remote) |
c0885435 | 434 | { |
56baa61d | 435 | const char *format = NULL; |
4fac1d3a RS |
436 | const char *base = NULL; |
437 | const char *remote = NULL; | |
438 | const char *exec = NULL; | |
aec0c1bb | 439 | const char *output = NULL; |
c0885435 RS |
440 | int compression_level = -1; |
441 | int verbose = 0; | |
442 | int i; | |
4fac1d3a | 443 | int list = 0; |
ba053ea9 | 444 | int worktree_attributes = 0; |
4fac1d3a RS |
445 | struct option opts[] = { |
446 | OPT_GROUP(""), | |
0012a387 NTND |
447 | OPT_STRING(0, "format", &format, N_("fmt"), N_("archive format")), |
448 | OPT_STRING(0, "prefix", &base, N_("prefix"), | |
449 | N_("prepend prefix to each pathname in the archive")), | |
450 | OPT_STRING('o', "output", &output, N_("file"), | |
451 | N_("write the archive to this file")), | |
f858c646 | 452 | OPT_BOOL(0, "worktree-attributes", &worktree_attributes, |
0012a387 NTND |
453 | N_("read .gitattributes in working directory")), |
454 | OPT__VERBOSE(&verbose, N_("report archived files on stderr")), | |
455 | OPT__COMPR('0', &compression_level, N_("store only"), 0), | |
456 | OPT__COMPR('1', &compression_level, N_("compress faster"), 1), | |
4fac1d3a RS |
457 | OPT__COMPR_HIDDEN('2', &compression_level, 2), |
458 | OPT__COMPR_HIDDEN('3', &compression_level, 3), | |
459 | OPT__COMPR_HIDDEN('4', &compression_level, 4), | |
460 | OPT__COMPR_HIDDEN('5', &compression_level, 5), | |
461 | OPT__COMPR_HIDDEN('6', &compression_level, 6), | |
462 | OPT__COMPR_HIDDEN('7', &compression_level, 7), | |
463 | OPT__COMPR_HIDDEN('8', &compression_level, 8), | |
0012a387 | 464 | OPT__COMPR('9', &compression_level, N_("compress better"), 9), |
4fac1d3a | 465 | OPT_GROUP(""), |
f858c646 | 466 | OPT_BOOL('l', "list", &list, |
0012a387 | 467 | N_("list supported archive formats")), |
4fac1d3a | 468 | OPT_GROUP(""), |
0012a387 NTND |
469 | OPT_STRING(0, "remote", &remote, N_("repo"), |
470 | N_("retrieve the archive from remote repository <repo>")), | |
b0ff9654 | 471 | OPT_STRING(0, "exec", &exec, N_("command"), |
0012a387 | 472 | N_("path to the remote git-upload-archive command")), |
4fac1d3a RS |
473 | OPT_END() |
474 | }; | |
475 | ||
37782920 | 476 | argc = parse_options(argc, argv, NULL, opts, archive_usage, 0); |
4fac1d3a RS |
477 | |
478 | if (remote) | |
5a36d00c | 479 | die(_("Unexpected option --remote")); |
4fac1d3a | 480 | if (exec) |
5a36d00c | 481 | die(_("Option --exec can only be used together with --remote")); |
52e77876 | 482 | if (output) |
5a36d00c | 483 | die(_("Unexpected option --output")); |
4fac1d3a RS |
484 | |
485 | if (!base) | |
486 | base = ""; | |
487 | ||
488 | if (list) { | |
13e0f88d | 489 | for (i = 0; i < nr_archivers; i++) |
7b97730b JK |
490 | if (!is_remote || archivers[i]->flags & ARCHIVER_REMOTE) |
491 | printf("%s\n", archivers[i]->name); | |
4fac1d3a | 492 | exit(0); |
c0885435 RS |
493 | } |
494 | ||
56baa61d JK |
495 | if (!format && name_hint) |
496 | format = archive_format_from_filename(name_hint); | |
497 | if (!format) | |
498 | format = "tar"; | |
499 | ||
c0885435 | 500 | /* We need at least one parameter -- tree-ish */ |
4fac1d3a RS |
501 | if (argc < 1) |
502 | usage_with_options(archive_usage, opts); | |
c0885435 | 503 | *ar = lookup_archiver(format); |
7b97730b | 504 | if (!*ar || (is_remote && !((*ar)->flags & ARCHIVER_REMOTE))) |
5a36d00c | 505 | die(_("Unknown archive format '%s'"), format); |
c0885435 RS |
506 | |
507 | args->compression_level = Z_DEFAULT_COMPRESSION; | |
508 | if (compression_level != -1) { | |
13e0f88d | 509 | if ((*ar)->flags & ARCHIVER_WANT_COMPRESSION_LEVELS) |
c0885435 RS |
510 | args->compression_level = compression_level; |
511 | else { | |
5a36d00c | 512 | die(_("Argument not supported for format '%s': -%d"), |
c0885435 RS |
513 | format, compression_level); |
514 | } | |
515 | } | |
516 | args->verbose = verbose; | |
517 | args->base = base; | |
518 | args->baselen = strlen(base); | |
ba053ea9 | 519 | args->worktree_attributes = worktree_attributes; |
c0885435 | 520 | |
4fac1d3a | 521 | return argc; |
c0885435 RS |
522 | } |
523 | ||
6e94e683 | 524 | int write_archive(int argc, const char **argv, const char *prefix, |
b612ee20 | 525 | struct repository *repo, |
eb0224c6 | 526 | const char *name_hint, int remote) |
6e94e683 RS |
527 | { |
528 | const struct archiver *ar = NULL; | |
529 | struct archiver_args args; | |
6e94e683 | 530 | |
95790ff6 TA |
531 | git_config_get_bool("uploadarchive.allowunreachable", &remote_allow_unreachable); |
532 | git_config(git_default_config, NULL); | |
533 | ||
13e0f88d JK |
534 | init_tar_archiver(); |
535 | init_zip_archiver(); | |
23212862 | 536 | |
b612ee20 | 537 | args.repo = repo; |
7b97730b | 538 | argc = parse_archive_args(argc, argv, &ar, &args, name_hint, remote); |
eb0224c6 | 539 | if (!startup_info->have_repository) { |
23212862 JK |
540 | /* |
541 | * We know this will die() with an error, so we could just | |
542 | * die ourselves; but its error message will be more specific | |
543 | * than what we could write here. | |
544 | */ | |
545 | setup_git_directory(); | |
546 | } | |
6e94e683 | 547 | |
ee27ca4a | 548 | parse_treeish_arg(argv, &args, prefix, remote); |
6e94e683 RS |
549 | parse_pathspec_arg(argv + 1, &args); |
550 | ||
4d7c9898 | 551 | return ar->write_archive(ar, &args); |
6e94e683 | 552 | } |
56baa61d | 553 | |
08716b3c JK |
554 | static int match_extension(const char *filename, const char *ext) |
555 | { | |
556 | int prefixlen = strlen(filename) - strlen(ext); | |
557 | ||
558 | /* | |
559 | * We need 1 character for the '.', and 1 character to ensure that the | |
560 | * prefix is non-empty (k.e., we don't match .tar.gz with no actual | |
561 | * filename). | |
562 | */ | |
b1cdfb54 | 563 | if (prefixlen < 2 || filename[prefixlen - 1] != '.') |
08716b3c JK |
564 | return 0; |
565 | return !strcmp(filename + prefixlen, ext); | |
566 | } | |
567 | ||
56baa61d JK |
568 | const char *archive_format_from_filename(const char *filename) |
569 | { | |
08716b3c JK |
570 | int i; |
571 | ||
572 | for (i = 0; i < nr_archivers; i++) | |
573 | if (match_extension(filename, archivers[i]->name)) | |
574 | return archivers[i]->name; | |
56baa61d JK |
575 | return NULL; |
576 | } |