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Commit | Line | Data |
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18125644 | 1 | #include "cache.h" |
fb58c8d5 | 2 | #include "refs.h" |
18125644 | 3 | #include "commit.h" |
c0885435 | 4 | #include "tree-walk.h" |
18125644 | 5 | #include "attr.h" |
562e25ab | 6 | #include "archive.h" |
4fac1d3a | 7 | #include "parse-options.h" |
ba053ea9 | 8 | #include "unpack-trees.h" |
ed22b417 | 9 | #include "dir.h" |
4fac1d3a RS |
10 | |
11 | static char const * const archive_usage[] = { | |
9c9b4f2f | 12 | N_("git archive [<options>] <tree-ish> [<path>...]"), |
0012a387 | 13 | N_("git archive --list"), |
9c9b4f2f | 14 | N_("git archive --remote <repo> [--exec <cmd>] [<options>] <tree-ish> [<path>...]"), |
0012a387 | 15 | N_("git archive --remote <repo> [--exec <cmd>] --list"), |
4fac1d3a RS |
16 | NULL |
17 | }; | |
c0885435 | 18 | |
13e0f88d JK |
19 | static const struct archiver **archivers; |
20 | static int nr_archivers; | |
21 | static int alloc_archivers; | |
7671b632 | 22 | static int remote_allow_unreachable; |
13e0f88d JK |
23 | |
24 | void register_archiver(struct archiver *ar) | |
25 | { | |
26 | ALLOC_GROW(archivers, nr_archivers + 1, alloc_archivers); | |
27 | archivers[nr_archivers++] = ar; | |
28 | } | |
c0885435 | 29 | |
18125644 LH |
30 | static void format_subst(const struct commit *commit, |
31 | const char *src, size_t len, | |
32 | struct strbuf *buf) | |
33 | { | |
34 | char *to_free = NULL; | |
f285a2d7 | 35 | struct strbuf fmt = STRBUF_INIT; |
dd2e794a | 36 | struct pretty_print_context ctx = {0}; |
a5481a6c | 37 | ctx.date_mode.type = DATE_NORMAL; |
35039ced | 38 | ctx.abbrev = DEFAULT_ABBREV; |
18125644 LH |
39 | |
40 | if (src == buf->buf) | |
41 | to_free = strbuf_detach(buf, NULL); | |
18125644 LH |
42 | for (;;) { |
43 | const char *b, *c; | |
44 | ||
45 | b = memmem(src, len, "$Format:", 8); | |
75b7dfbd | 46 | if (!b) |
18125644 | 47 | break; |
75b7dfbd | 48 | c = memchr(b + 8, '$', (src + len) - b - 8); |
18125644 LH |
49 | if (!c) |
50 | break; | |
51 | ||
52 | strbuf_reset(&fmt); | |
53 | strbuf_add(&fmt, b + 8, c - b - 8); | |
54 | ||
55 | strbuf_add(buf, src, b - src); | |
dd2e794a | 56 | format_commit_message(commit, fmt.buf, buf, &ctx); |
18125644 LH |
57 | len -= c + 1 - src; |
58 | src = c + 1; | |
59 | } | |
60 | strbuf_add(buf, src, len); | |
61 | strbuf_release(&fmt); | |
62 | free(to_free); | |
63 | } | |
64 | ||
9cb513b7 NTND |
65 | void *sha1_file_to_archive(const struct archiver_args *args, |
66 | const char *path, const unsigned char *sha1, | |
67 | unsigned int mode, enum object_type *type, | |
68 | unsigned long *sizep) | |
18125644 LH |
69 | { |
70 | void *buffer; | |
9cb513b7 | 71 | const struct commit *commit = args->convert ? args->commit : NULL; |
18125644 | 72 | |
9cb513b7 | 73 | path += args->baselen; |
18125644 LH |
74 | buffer = read_sha1_file(sha1, type, sizep); |
75 | if (buffer && S_ISREG(mode)) { | |
f285a2d7 | 76 | struct strbuf buf = STRBUF_INIT; |
18125644 LH |
77 | size_t size = 0; |
78 | ||
18125644 LH |
79 | strbuf_attach(&buf, buffer, *sizep, *sizep + 1); |
80 | convert_to_working_tree(path, buf.buf, buf.len, &buf); | |
1d11d5bb RS |
81 | if (commit) |
82 | format_subst(commit, buf.buf, buf.len, &buf); | |
18125644 LH |
83 | buffer = strbuf_detach(&buf, &size); |
84 | *sizep = size; | |
85 | } | |
86 | ||
87 | return buffer; | |
88 | } | |
89 | ||
1d11d5bb | 90 | static void setup_archive_check(struct git_attr_check *check) |
008d896d RS |
91 | { |
92 | static struct git_attr *attr_export_ignore; | |
1d11d5bb | 93 | static struct git_attr *attr_export_subst; |
008d896d | 94 | |
1d11d5bb | 95 | if (!attr_export_ignore) { |
7fb0eaa2 JH |
96 | attr_export_ignore = git_attr("export-ignore"); |
97 | attr_export_subst = git_attr("export-subst"); | |
1d11d5bb | 98 | } |
008d896d | 99 | check[0].attr = attr_export_ignore; |
1d11d5bb | 100 | check[1].attr = attr_export_subst; |
008d896d | 101 | } |
562e25ab | 102 | |
ed22b417 NTND |
103 | struct directory { |
104 | struct directory *up; | |
13609673 | 105 | struct object_id oid; |
ed22b417 NTND |
106 | int baselen, len; |
107 | unsigned mode; | |
108 | int stage; | |
109 | char path[FLEX_ARRAY]; | |
110 | }; | |
111 | ||
562e25ab RS |
112 | struct archiver_context { |
113 | struct archiver_args *args; | |
114 | write_archive_entry_fn_t write_entry; | |
ed22b417 | 115 | struct directory *bottom; |
562e25ab RS |
116 | }; |
117 | ||
118 | static int write_archive_entry(const unsigned char *sha1, const char *base, | |
119 | int baselen, const char *filename, unsigned mode, int stage, | |
120 | void *context) | |
121 | { | |
122 | static struct strbuf path = STRBUF_INIT; | |
123 | struct archiver_context *c = context; | |
124 | struct archiver_args *args = c->args; | |
125 | write_archive_entry_fn_t write_entry = c->write_entry; | |
1d11d5bb RS |
126 | struct git_attr_check check[2]; |
127 | const char *path_without_prefix; | |
562e25ab | 128 | int err; |
562e25ab | 129 | |
9cb513b7 | 130 | args->convert = 0; |
562e25ab RS |
131 | strbuf_reset(&path); |
132 | strbuf_grow(&path, PATH_MAX); | |
ebfbdb34 | 133 | strbuf_add(&path, args->base, args->baselen); |
562e25ab RS |
134 | strbuf_add(&path, base, baselen); |
135 | strbuf_addstr(&path, filename); | |
94bc671a JNA |
136 | if (S_ISDIR(mode) || S_ISGITLINK(mode)) |
137 | strbuf_addch(&path, '/'); | |
1d11d5bb | 138 | path_without_prefix = path.buf + args->baselen; |
562e25ab | 139 | |
1d11d5bb | 140 | setup_archive_check(check); |
d932f4eb | 141 | if (!git_check_attr(path_without_prefix, ARRAY_SIZE(check), check)) { |
1d11d5bb RS |
142 | if (ATTR_TRUE(check[0].value)) |
143 | return 0; | |
9cb513b7 | 144 | args->convert = ATTR_TRUE(check[1].value); |
1d11d5bb | 145 | } |
562e25ab RS |
146 | |
147 | if (S_ISDIR(mode) || S_ISGITLINK(mode)) { | |
562e25ab RS |
148 | if (args->verbose) |
149 | fprintf(stderr, "%.*s\n", (int)path.len, path.buf); | |
9cb513b7 | 150 | err = write_entry(args, sha1, path.buf, path.len, mode); |
562e25ab RS |
151 | if (err) |
152 | return err; | |
d3bee161 | 153 | return (S_ISDIR(mode) ? READ_TREE_RECURSIVE : 0); |
562e25ab RS |
154 | } |
155 | ||
562e25ab RS |
156 | if (args->verbose) |
157 | fprintf(stderr, "%.*s\n", (int)path.len, path.buf); | |
9cb513b7 | 158 | return write_entry(args, sha1, path.buf, path.len, mode); |
562e25ab RS |
159 | } |
160 | ||
6a0b0b6d NTND |
161 | static int write_archive_entry_buf(const unsigned char *sha1, struct strbuf *base, |
162 | const char *filename, unsigned mode, int stage, | |
163 | void *context) | |
164 | { | |
165 | return write_archive_entry(sha1, base->buf, base->len, | |
166 | filename, mode, stage, context); | |
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; | |
6a0b0b6d | 174 | d = xmallocz(sizeof(*d) + base->len + 1 + strlen(filename)); |
ed22b417 | 175 | d->up = c->bottom; |
6a0b0b6d | 176 | d->baselen = base->len; |
ed22b417 NTND |
177 | d->mode = mode; |
178 | d->stage = stage; | |
179 | c->bottom = d; | |
6a0b0b6d | 180 | d->len = sprintf(d->path, "%.*s%s/", (int)base->len, base->buf, filename); |
13609673 | 181 | hashcpy(d->oid.hash, sha1); |
ed22b417 NTND |
182 | } |
183 | ||
184 | static int write_directory(struct archiver_context *c) | |
185 | { | |
186 | struct directory *d = c->bottom; | |
187 | int ret; | |
188 | ||
189 | if (!d) | |
190 | return 0; | |
191 | c->bottom = d->up; | |
192 | d->path[d->len - 1] = '\0'; /* no trailing slash */ | |
193 | ret = | |
194 | write_directory(c) || | |
13609673 | 195 | write_archive_entry(d->oid.hash, d->path, d->baselen, |
ed22b417 NTND |
196 | d->path + d->baselen, d->mode, |
197 | d->stage, c) != READ_TREE_RECURSIVE; | |
198 | free(d); | |
199 | return ret ? -1 : 0; | |
200 | } | |
201 | ||
202 | static int queue_or_write_archive_entry(const unsigned char *sha1, | |
6a0b0b6d | 203 | struct strbuf *base, const char *filename, |
ed22b417 NTND |
204 | unsigned mode, int stage, void *context) |
205 | { | |
206 | struct archiver_context *c = context; | |
207 | ||
208 | while (c->bottom && | |
6a0b0b6d NTND |
209 | !(base->len >= c->bottom->len && |
210 | !strncmp(base->buf, c->bottom->path, c->bottom->len))) { | |
ed22b417 NTND |
211 | struct directory *next = c->bottom->up; |
212 | free(c->bottom); | |
213 | c->bottom = next; | |
214 | } | |
215 | ||
216 | if (S_ISDIR(mode)) { | |
6a0b0b6d | 217 | queue_directory(sha1, base, filename, |
ed22b417 NTND |
218 | mode, stage, c); |
219 | return READ_TREE_RECURSIVE; | |
220 | } | |
221 | ||
222 | if (write_directory(c)) | |
223 | return -1; | |
6a0b0b6d | 224 | return write_archive_entry(sha1, base->buf, base->len, filename, mode, |
ed22b417 NTND |
225 | stage, context); |
226 | } | |
227 | ||
562e25ab RS |
228 | int write_archive_entries(struct archiver_args *args, |
229 | write_archive_entry_fn_t write_entry) | |
230 | { | |
231 | struct archiver_context context; | |
ba053ea9 NTND |
232 | struct unpack_trees_options opts; |
233 | struct tree_desc t; | |
562e25ab RS |
234 | int err; |
235 | ||
236 | if (args->baselen > 0 && args->base[args->baselen - 1] == '/') { | |
237 | size_t len = args->baselen; | |
238 | ||
239 | while (len > 1 && args->base[len - 2] == '/') | |
240 | len--; | |
241 | if (args->verbose) | |
242 | fprintf(stderr, "%.*s\n", (int)len, args->base); | |
243 | err = write_entry(args, args->tree->object.sha1, args->base, | |
9cb513b7 | 244 | len, 040777); |
562e25ab RS |
245 | if (err) |
246 | return err; | |
247 | } | |
248 | ||
ed22b417 | 249 | memset(&context, 0, sizeof(context)); |
562e25ab RS |
250 | context.args = args; |
251 | context.write_entry = write_entry; | |
252 | ||
ba053ea9 NTND |
253 | /* |
254 | * Setup index and instruct attr to read index only | |
255 | */ | |
256 | if (!args->worktree_attributes) { | |
257 | memset(&opts, 0, sizeof(opts)); | |
258 | opts.index_only = 1; | |
259 | opts.head_idx = -1; | |
260 | opts.src_index = &the_index; | |
261 | opts.dst_index = &the_index; | |
262 | opts.fn = oneway_merge; | |
263 | init_tree_desc(&t, args->tree->buffer, args->tree->size); | |
264 | if (unpack_trees(1, &t, &opts)) | |
265 | return -1; | |
266 | git_attr_set_direction(GIT_ATTR_INDEX, &the_index); | |
267 | } | |
268 | ||
f3e743a0 | 269 | err = read_tree_recursive(args->tree, "", 0, 0, &args->pathspec, |
ed22b417 NTND |
270 | args->pathspec.has_wildcard ? |
271 | queue_or_write_archive_entry : | |
6a0b0b6d | 272 | write_archive_entry_buf, |
ed22b417 | 273 | &context); |
562e25ab RS |
274 | if (err == READ_TREE_RECURSIVE) |
275 | err = 0; | |
ed22b417 NTND |
276 | while (context.bottom) { |
277 | struct directory *next = context.bottom->up; | |
278 | free(context.bottom); | |
279 | context.bottom = next; | |
280 | } | |
562e25ab RS |
281 | return err; |
282 | } | |
6e94e683 | 283 | |
c0885435 RS |
284 | static const struct archiver *lookup_archiver(const char *name) |
285 | { | |
286 | int i; | |
287 | ||
4fac1d3a RS |
288 | if (!name) |
289 | return NULL; | |
290 | ||
13e0f88d JK |
291 | for (i = 0; i < nr_archivers; i++) { |
292 | if (!strcmp(name, archivers[i]->name)) | |
293 | return archivers[i]; | |
c0885435 RS |
294 | } |
295 | return NULL; | |
296 | } | |
297 | ||
6a0b0b6d NTND |
298 | static int reject_entry(const unsigned char *sha1, struct strbuf *base, |
299 | const char *filename, unsigned mode, | |
d5f53d6d RS |
300 | int stage, void *context) |
301 | { | |
ed22b417 NTND |
302 | int ret = -1; |
303 | if (S_ISDIR(mode)) { | |
304 | struct strbuf sb = STRBUF_INIT; | |
6a0b0b6d | 305 | strbuf_addbuf(&sb, base); |
ed22b417 NTND |
306 | strbuf_addstr(&sb, filename); |
307 | if (!match_pathspec(context, sb.buf, sb.len, 0, NULL, 1)) | |
308 | ret = READ_TREE_RECURSIVE; | |
309 | strbuf_release(&sb); | |
310 | } | |
311 | return ret; | |
d5f53d6d RS |
312 | } |
313 | ||
314 | static int path_exists(struct tree *tree, const char *path) | |
315 | { | |
f0096c06 NTND |
316 | const char *paths[] = { path, NULL }; |
317 | struct pathspec pathspec; | |
318 | int ret; | |
319 | ||
f3e743a0 | 320 | parse_pathspec(&pathspec, 0, 0, "", paths); |
ed22b417 NTND |
321 | pathspec.recursive = 1; |
322 | ret = read_tree_recursive(tree, "", 0, 0, &pathspec, | |
323 | reject_entry, &pathspec); | |
f0096c06 NTND |
324 | free_pathspec(&pathspec); |
325 | return ret != 0; | |
d5f53d6d RS |
326 | } |
327 | ||
c0885435 RS |
328 | static void parse_pathspec_arg(const char **pathspec, |
329 | struct archiver_args *ar_args) | |
330 | { | |
f3e743a0 NTND |
331 | /* |
332 | * must be consistent with parse_pathspec in path_exists() | |
333 | * Also if pathspec patterns are dependent, we're in big | |
334 | * trouble as we test each one separately | |
335 | */ | |
336 | parse_pathspec(&ar_args->pathspec, 0, | |
337 | PATHSPEC_PREFER_FULL, | |
338 | "", pathspec); | |
ed22b417 | 339 | ar_args->pathspec.recursive = 1; |
d5f53d6d RS |
340 | if (pathspec) { |
341 | while (*pathspec) { | |
bd54cf17 | 342 | if (**pathspec && !path_exists(ar_args->tree, *pathspec)) |
f3e743a0 | 343 | die(_("pathspec '%s' did not match any files"), *pathspec); |
d5f53d6d RS |
344 | pathspec++; |
345 | } | |
346 | } | |
c0885435 RS |
347 | } |
348 | ||
349 | static void parse_treeish_arg(const char **argv, | |
ee27ca4a JK |
350 | struct archiver_args *ar_args, const char *prefix, |
351 | int remote) | |
c0885435 RS |
352 | { |
353 | const char *name = argv[0]; | |
354 | const unsigned char *commit_sha1; | |
355 | time_t archive_time; | |
356 | struct tree *tree; | |
357 | const struct commit *commit; | |
13609673 | 358 | struct object_id oid; |
c0885435 | 359 | |
ee27ca4a | 360 | /* Remotes are only allowed to fetch actual refs */ |
7671b632 | 361 | if (remote && !remote_allow_unreachable) { |
ee27ca4a | 362 | char *ref = NULL; |
2c5495f7 RM |
363 | const char *colon = strchrnul(name, ':'); |
364 | int refnamelen = colon - name; | |
c51a351a | 365 | |
13609673 | 366 | if (!dwim_ref(name, refnamelen, oid.hash, &ref)) |
c51a351a | 367 | die("no such ref: %.*s", refnamelen, name); |
ee27ca4a JK |
368 | free(ref); |
369 | } | |
0f544ee8 | 370 | |
13609673 | 371 | if (get_sha1(name, oid.hash)) |
0f544ee8 | 372 | die("Not a valid object name"); |
c0885435 | 373 | |
13609673 | 374 | commit = lookup_commit_reference_gently(oid.hash, 1); |
c0885435 RS |
375 | if (commit) { |
376 | commit_sha1 = commit->object.sha1; | |
377 | archive_time = commit->date; | |
378 | } else { | |
379 | commit_sha1 = NULL; | |
380 | archive_time = time(NULL); | |
381 | } | |
382 | ||
13609673 | 383 | tree = parse_tree_indirect(oid.hash); |
c0885435 RS |
384 | if (tree == NULL) |
385 | die("not a tree object"); | |
386 | ||
387 | if (prefix) { | |
13609673 | 388 | struct object_id tree_oid; |
c0885435 RS |
389 | unsigned int mode; |
390 | int err; | |
391 | ||
392 | err = get_tree_entry(tree->object.sha1, prefix, | |
13609673 | 393 | tree_oid.hash, &mode); |
c0885435 RS |
394 | if (err || !S_ISDIR(mode)) |
395 | die("current working directory is untracked"); | |
396 | ||
13609673 | 397 | tree = parse_tree_indirect(tree_oid.hash); |
c0885435 RS |
398 | } |
399 | ar_args->tree = tree; | |
400 | ar_args->commit_sha1 = commit_sha1; | |
401 | ar_args->commit = commit; | |
402 | ar_args->time = archive_time; | |
403 | } | |
404 | ||
4fac1d3a RS |
405 | #define OPT__COMPR(s, v, h, p) \ |
406 | { OPTION_SET_INT, (s), NULL, (v), NULL, (h), \ | |
407 | PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, (p) } | |
408 | #define OPT__COMPR_HIDDEN(s, v, p) \ | |
409 | { OPTION_SET_INT, (s), NULL, (v), NULL, "", \ | |
410 | PARSE_OPT_NOARG | PARSE_OPT_NONEG | PARSE_OPT_HIDDEN, NULL, (p) } | |
411 | ||
c0885435 | 412 | static int parse_archive_args(int argc, const char **argv, |
56baa61d | 413 | const struct archiver **ar, struct archiver_args *args, |
7b97730b | 414 | const char *name_hint, int is_remote) |
c0885435 | 415 | { |
56baa61d | 416 | const char *format = NULL; |
4fac1d3a RS |
417 | const char *base = NULL; |
418 | const char *remote = NULL; | |
419 | const char *exec = NULL; | |
aec0c1bb | 420 | const char *output = NULL; |
c0885435 RS |
421 | int compression_level = -1; |
422 | int verbose = 0; | |
423 | int i; | |
4fac1d3a | 424 | int list = 0; |
ba053ea9 | 425 | int worktree_attributes = 0; |
4fac1d3a RS |
426 | struct option opts[] = { |
427 | OPT_GROUP(""), | |
0012a387 NTND |
428 | OPT_STRING(0, "format", &format, N_("fmt"), N_("archive format")), |
429 | OPT_STRING(0, "prefix", &base, N_("prefix"), | |
430 | N_("prepend prefix to each pathname in the archive")), | |
431 | OPT_STRING('o', "output", &output, N_("file"), | |
432 | N_("write the archive to this file")), | |
f858c646 | 433 | OPT_BOOL(0, "worktree-attributes", &worktree_attributes, |
0012a387 NTND |
434 | N_("read .gitattributes in working directory")), |
435 | OPT__VERBOSE(&verbose, N_("report archived files on stderr")), | |
436 | OPT__COMPR('0', &compression_level, N_("store only"), 0), | |
437 | OPT__COMPR('1', &compression_level, N_("compress faster"), 1), | |
4fac1d3a RS |
438 | OPT__COMPR_HIDDEN('2', &compression_level, 2), |
439 | OPT__COMPR_HIDDEN('3', &compression_level, 3), | |
440 | OPT__COMPR_HIDDEN('4', &compression_level, 4), | |
441 | OPT__COMPR_HIDDEN('5', &compression_level, 5), | |
442 | OPT__COMPR_HIDDEN('6', &compression_level, 6), | |
443 | OPT__COMPR_HIDDEN('7', &compression_level, 7), | |
444 | OPT__COMPR_HIDDEN('8', &compression_level, 8), | |
0012a387 | 445 | OPT__COMPR('9', &compression_level, N_("compress better"), 9), |
4fac1d3a | 446 | OPT_GROUP(""), |
f858c646 | 447 | OPT_BOOL('l', "list", &list, |
0012a387 | 448 | N_("list supported archive formats")), |
4fac1d3a | 449 | OPT_GROUP(""), |
0012a387 NTND |
450 | OPT_STRING(0, "remote", &remote, N_("repo"), |
451 | N_("retrieve the archive from remote repository <repo>")), | |
b0ff9654 | 452 | OPT_STRING(0, "exec", &exec, N_("command"), |
0012a387 | 453 | N_("path to the remote git-upload-archive command")), |
4fac1d3a RS |
454 | OPT_END() |
455 | }; | |
456 | ||
37782920 | 457 | argc = parse_options(argc, argv, NULL, opts, archive_usage, 0); |
4fac1d3a RS |
458 | |
459 | if (remote) | |
460 | die("Unexpected option --remote"); | |
461 | if (exec) | |
462 | die("Option --exec can only be used together with --remote"); | |
52e77876 RS |
463 | if (output) |
464 | die("Unexpected option --output"); | |
4fac1d3a RS |
465 | |
466 | if (!base) | |
467 | base = ""; | |
468 | ||
469 | if (list) { | |
13e0f88d | 470 | for (i = 0; i < nr_archivers; i++) |
7b97730b JK |
471 | if (!is_remote || archivers[i]->flags & ARCHIVER_REMOTE) |
472 | printf("%s\n", archivers[i]->name); | |
4fac1d3a | 473 | exit(0); |
c0885435 RS |
474 | } |
475 | ||
56baa61d JK |
476 | if (!format && name_hint) |
477 | format = archive_format_from_filename(name_hint); | |
478 | if (!format) | |
479 | format = "tar"; | |
480 | ||
c0885435 | 481 | /* We need at least one parameter -- tree-ish */ |
4fac1d3a RS |
482 | if (argc < 1) |
483 | usage_with_options(archive_usage, opts); | |
c0885435 | 484 | *ar = lookup_archiver(format); |
7b97730b | 485 | if (!*ar || (is_remote && !((*ar)->flags & ARCHIVER_REMOTE))) |
c0885435 RS |
486 | die("Unknown archive format '%s'", format); |
487 | ||
488 | args->compression_level = Z_DEFAULT_COMPRESSION; | |
489 | if (compression_level != -1) { | |
13e0f88d | 490 | if ((*ar)->flags & ARCHIVER_WANT_COMPRESSION_LEVELS) |
c0885435 RS |
491 | args->compression_level = compression_level; |
492 | else { | |
493 | die("Argument not supported for format '%s': -%d", | |
494 | format, compression_level); | |
495 | } | |
496 | } | |
497 | args->verbose = verbose; | |
498 | args->base = base; | |
499 | args->baselen = strlen(base); | |
ba053ea9 | 500 | args->worktree_attributes = worktree_attributes; |
c0885435 | 501 | |
4fac1d3a | 502 | return argc; |
c0885435 RS |
503 | } |
504 | ||
6e94e683 | 505 | int write_archive(int argc, const char **argv, const char *prefix, |
7b97730b | 506 | int setup_prefix, const char *name_hint, int remote) |
6e94e683 | 507 | { |
23212862 | 508 | int nongit = 0; |
6e94e683 RS |
509 | const struct archiver *ar = NULL; |
510 | struct archiver_args args; | |
6e94e683 | 511 | |
6e94e683 | 512 | if (setup_prefix && prefix == NULL) |
23212862 JK |
513 | prefix = setup_git_directory_gently(&nongit); |
514 | ||
95790ff6 TA |
515 | git_config_get_bool("uploadarchive.allowunreachable", &remote_allow_unreachable); |
516 | git_config(git_default_config, NULL); | |
517 | ||
13e0f88d JK |
518 | init_tar_archiver(); |
519 | init_zip_archiver(); | |
23212862 | 520 | |
7b97730b | 521 | argc = parse_archive_args(argc, argv, &ar, &args, name_hint, remote); |
23212862 JK |
522 | if (nongit) { |
523 | /* | |
524 | * We know this will die() with an error, so we could just | |
525 | * die ourselves; but its error message will be more specific | |
526 | * than what we could write here. | |
527 | */ | |
528 | setup_git_directory(); | |
529 | } | |
6e94e683 | 530 | |
ee27ca4a | 531 | parse_treeish_arg(argv, &args, prefix, remote); |
6e94e683 RS |
532 | parse_pathspec_arg(argv + 1, &args); |
533 | ||
4d7c9898 | 534 | return ar->write_archive(ar, &args); |
6e94e683 | 535 | } |
56baa61d | 536 | |
08716b3c JK |
537 | static int match_extension(const char *filename, const char *ext) |
538 | { | |
539 | int prefixlen = strlen(filename) - strlen(ext); | |
540 | ||
541 | /* | |
542 | * We need 1 character for the '.', and 1 character to ensure that the | |
543 | * prefix is non-empty (k.e., we don't match .tar.gz with no actual | |
544 | * filename). | |
545 | */ | |
b1cdfb54 | 546 | if (prefixlen < 2 || filename[prefixlen - 1] != '.') |
08716b3c JK |
547 | return 0; |
548 | return !strcmp(filename + prefixlen, ext); | |
549 | } | |
550 | ||
56baa61d JK |
551 | const char *archive_format_from_filename(const char *filename) |
552 | { | |
08716b3c JK |
553 | int i; |
554 | ||
555 | for (i = 0; i < nr_archivers; i++) | |
556 | if (match_extension(filename, archivers[i]->name)) | |
557 | return archivers[i]->name; | |
56baa61d JK |
558 | return NULL; |
559 | } |