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chromium / external / github.com / git / git / refs/tags/v2.11.0 / . / archive.c
blob: 01751e574bc10c1211d0253d215917ecc4ce82dd [file] [log] [blame]
Lars Hjemli18125642008-01-14 16:36:34[diff] [blame]1#include "cache.h"
Michael Haggertyfb58c8d2015-06-22 14:03:05[diff] [blame]2#include "refs.h"
Lars Hjemli18125642008-01-14 16:36:34[diff] [blame]3#include "commit.h"
Rene Scharfec0885432008-07-25 10:41:22[diff] [blame]4#include "tree-walk.h"
Lars Hjemli18125642008-01-14 16:36:34[diff] [blame]5#include "attr.h"
René Scharfe562e25a2008-07-14 19:22:24[diff] [blame]6#include "archive.h"
Rene Scharfe4fac1d32008-07-25 10:41:26[diff] [blame]7#include "parse-options.h"
Nguyễn Thái Ngọc Duyba053ea2009-04-17 22:18:05[diff] [blame]8#include "unpack-trees.h"
Nguyễn Thái Ngọc Duyed22b412014-09-21 03:55:06[diff] [blame]9#include "dir.h"
Lars Hjemli18125642008-01-14 16:36:34[diff] [blame]10
Rene Scharfe4fac1d32008-07-25 10:41:26[diff] [blame]11static char const * const archive_usage[] = {
Alex Henrie9c9b4f22015-01-13 07:44:47[diff] [blame]12 N_("git archive [<options>] <tree-ish> [<path>...]"),
Nguyễn Thái Ngọc Duy0012a382012-08-20 12:31:51[diff] [blame]13 N_("git archive --list"),
Alex Henrie9c9b4f22015-01-13 07:44:47[diff] [blame]14 N_("git archive --remote <repo> [--exec <cmd>] [<options>] <tree-ish> [<path>...]"),
Nguyễn Thái Ngọc Duy0012a382012-08-20 12:31:51[diff] [blame]15 N_("git archive --remote <repo> [--exec <cmd>] --list"),
Rene Scharfe4fac1d32008-07-25 10:41:26[diff] [blame]16 NULL
17};
Rene Scharfec0885432008-07-25 10:41:22[diff] [blame]18
Jeff King13e0f882011-06-22 01:23:33[diff] [blame]19static const struct archiver **archivers;
20static int nr_archivers;
21static int alloc_archivers;
Scott J. Goldman7671b632014-02-28 10:04:19[diff] [blame]22static int remote_allow_unreachable;
Rene Scharfec0885432008-07-25 10:41:22[diff] [blame]23
Jeff King13e0f882011-06-22 01:23:33[diff] [blame]24void register_archiver(struct archiver *ar)
25{
26 ALLOC_GROW(archivers, nr_archivers + 1, alloc_archivers);
27 archivers[nr_archivers++] = ar;
28}
Rene Scharfec0885432008-07-25 10:41:22[diff] [blame]29
Lars Hjemli18125642008-01-14 16:36:34[diff] [blame]30static void format_subst(const struct commit *commit,
31 const char *src, size_t len,
32 struct strbuf *buf)
33{
34 char *to_free = NULL;
Brandon Caseyf285a2d2008-10-09 19:12:12[diff] [blame]35 struct strbuf fmt = STRBUF_INIT;
Thomas Rastdd2e7942009-10-19 15:48:08[diff] [blame]36 struct pretty_print_context ctx = {0};
Jeff Kinga5481a62015-06-25 16:55:02[diff] [blame]37 ctx.date_mode.type = DATE_NORMAL;
Jonathan Nieder35039ce2010-07-27 18:32:36[diff] [blame]38 ctx.abbrev = DEFAULT_ABBREV;
Lars Hjemli18125642008-01-14 16:36:34[diff] [blame]39
40 if (src == buf->buf)
41 to_free = strbuf_detach(buf, NULL);
Lars Hjemli18125642008-01-14 16:36:34[diff] [blame]42 for (;;) {
43 const char *b, *c;
44
45 b = memmem(src, len, "$Format:", 8);
Ariel Badichi75b7dfb2008-04-23 01:06:27[diff] [blame]46 if (!b)
Lars Hjemli18125642008-01-14 16:36:34[diff] [blame]47 break;
Ariel Badichi75b7dfb2008-04-23 01:06:27[diff] [blame]48 c = memchr(b + 8, '$', (src + len) - b - 8);
Lars Hjemli18125642008-01-14 16:36:34[diff] [blame]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);
Thomas Rastdd2e7942009-10-19 15:48:08[diff] [blame]56 format_commit_message(commit, fmt.buf, buf, &ctx);
Lars Hjemli18125642008-01-14 16:36:34[diff] [blame]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
Nguyễn Thái Ngọc Duy9cb513b2012-05-03 01:51:03[diff] [blame]65void *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)
Lars Hjemli18125642008-01-14 16:36:34[diff] [blame]69{
70 void *buffer;
Nguyễn Thái Ngọc Duy9cb513b2012-05-03 01:51:03[diff] [blame]71 const struct commit *commit = args->convert ? args->commit : NULL;
Lars Hjemli18125642008-01-14 16:36:34[diff] [blame]72
Nguyễn Thái Ngọc Duy9cb513b2012-05-03 01:51:03[diff] [blame]73 path += args->baselen;
Lars Hjemli18125642008-01-14 16:36:34[diff] [blame]74 buffer = read_sha1_file(sha1, type, sizep);
75 if (buffer && S_ISREG(mode)) {
Brandon Caseyf285a2d2008-10-09 19:12:12[diff] [blame]76 struct strbuf buf = STRBUF_INIT;
Lars Hjemli18125642008-01-14 16:36:34[diff] [blame]77 size_t size = 0;
78
Lars Hjemli18125642008-01-14 16:36:34[diff] [blame]79 strbuf_attach(&buf, buffer, *sizep, *sizep + 1);
80 convert_to_working_tree(path, buf.buf, buf.len, &buf);
René Scharfe1d11d5b2008-07-14 19:22:29[diff] [blame]81 if (commit)
82 format_subst(commit, buf.buf, buf.len, &buf);
Lars Hjemli18125642008-01-14 16:36:34[diff] [blame]83 buffer = strbuf_detach(&buf, &size);
84 *sizep = size;
85 }
86
87 return buffer;
88}
89
René Scharfe1d11d5b2008-07-14 19:22:29[diff] [blame]90static void setup_archive_check(struct git_attr_check *check)
René Scharfe008d8962008-06-08 16:42:33[diff] [blame]91{
92 static struct git_attr *attr_export_ignore;
René Scharfe1d11d5b2008-07-14 19:22:29[diff] [blame]93 static struct git_attr *attr_export_subst;
René Scharfe008d8962008-06-08 16:42:33[diff] [blame]94
René Scharfe1d11d5b2008-07-14 19:22:29[diff] [blame]95 if (!attr_export_ignore) {
Junio C Hamano7fb0eaa2010-01-17 04:39:59[diff] [blame]96 attr_export_ignore = git_attr("export-ignore");
97 attr_export_subst = git_attr("export-subst");
René Scharfe1d11d5b2008-07-14 19:22:29[diff] [blame]98 }
René Scharfe008d8962008-06-08 16:42:33[diff] [blame]99 check[0].attr = attr_export_ignore;
René Scharfe1d11d5b2008-07-14 19:22:29[diff] [blame]100 check[1].attr = attr_export_subst;
René Scharfe008d8962008-06-08 16:42:33[diff] [blame]101}
René Scharfe562e25a2008-07-14 19:22:24[diff] [blame]102
Nguyễn Thái Ngọc Duyed22b412014-09-21 03:55:06[diff] [blame]103struct directory {
104 struct directory *up;
brian m. carlson13609672015-03-13 23:39:30[diff] [blame]105 struct object_id oid;
Nguyễn Thái Ngọc Duyed22b412014-09-21 03:55:06[diff] [blame]106 int baselen, len;
107 unsigned mode;
108 int stage;
109 char path[FLEX_ARRAY];
110};
111
René Scharfe562e25a2008-07-14 19:22:24[diff] [blame]112struct archiver_context {
113 struct archiver_args *args;
114 write_archive_entry_fn_t write_entry;
Nguyễn Thái Ngọc Duyed22b412014-09-21 03:55:06[diff] [blame]115 struct directory *bottom;
René Scharfe562e25a2008-07-14 19:22:24[diff] [blame]116};
117
118static 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;
René Scharfe1d11d5b2008-07-14 19:22:29[diff] [blame]126 struct git_attr_check check[2];
127 const char *path_without_prefix;
René Scharfe562e25a2008-07-14 19:22:24[diff] [blame]128 int err;
René Scharfe562e25a2008-07-14 19:22:24[diff] [blame]129
Nguyễn Thái Ngọc Duy9cb513b2012-05-03 01:51:03[diff] [blame]130 args->convert = 0;
René Scharfe562e25a2008-07-14 19:22:24[diff] [blame]131 strbuf_reset(&path);
132 strbuf_grow(&path, PATH_MAX);
René Scharfeebfbdb32009-10-08 16:46:54[diff] [blame]133 strbuf_add(&path, args->base, args->baselen);
René Scharfe562e25a2008-07-14 19:22:24[diff] [blame]134 strbuf_add(&path, base, baselen);
135 strbuf_addstr(&path, filename);
Jean-Noël AVILA94bc6712012-12-08 20:04:39[diff] [blame]136 if (S_ISDIR(mode) || S_ISGITLINK(mode))
137 strbuf_addch(&path, '/');
René Scharfe1d11d5b2008-07-14 19:22:29[diff] [blame]138 path_without_prefix = path.buf + args->baselen;
René Scharfe562e25a2008-07-14 19:22:24[diff] [blame]139
René Scharfe1d11d5b2008-07-14 19:22:29[diff] [blame]140 setup_archive_check(check);
Michael Haggertyd932f4e2011-08-04 04:36:33[diff] [blame]141 if (!git_check_attr(path_without_prefix, ARRAY_SIZE(check), check)) {
René Scharfe1d11d5b2008-07-14 19:22:29[diff] [blame]142 if (ATTR_TRUE(check[0].value))
143 return 0;
Nguyễn Thái Ngọc Duy9cb513b2012-05-03 01:51:03[diff] [blame]144 args->convert = ATTR_TRUE(check[1].value);
René Scharfe1d11d5b2008-07-14 19:22:29[diff] [blame]145 }
René Scharfe562e25a2008-07-14 19:22:24[diff] [blame]146
147 if (S_ISDIR(mode) || S_ISGITLINK(mode)) {
René Scharfe562e25a2008-07-14 19:22:24[diff] [blame]148 if (args->verbose)
149 fprintf(stderr, "%.*s\n", (int)path.len, path.buf);
Nguyễn Thái Ngọc Duy9cb513b2012-05-03 01:51:03[diff] [blame]150 err = write_entry(args, sha1, path.buf, path.len, mode);
René Scharfe562e25a2008-07-14 19:22:24[diff] [blame]151 if (err)
152 return err;
Lars Hjemlid3bee162009-01-25 00:52:05[diff] [blame]153 return (S_ISDIR(mode) ? READ_TREE_RECURSIVE : 0);
René Scharfe562e25a2008-07-14 19:22:24[diff] [blame]154 }
155
René Scharfe562e25a2008-07-14 19:22:24[diff] [blame]156 if (args->verbose)
157 fprintf(stderr, "%.*s\n", (int)path.len, path.buf);
Nguyễn Thái Ngọc Duy9cb513b2012-05-03 01:51:03[diff] [blame]158 return write_entry(args, sha1, path.buf, path.len, mode);
René Scharfe562e25a2008-07-14 19:22:24[diff] [blame]159}
160
Nguyễn Thái Ngọc Duy6a0b0b62014-11-30 09:05:00[diff] [blame]161static 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
Nguyễn Thái Ngọc Duyed22b412014-09-21 03:55:06[diff] [blame]169static void queue_directory(const unsigned char *sha1,
Nguyễn Thái Ngọc Duy6a0b0b62014-11-30 09:05:00[diff] [blame]170 struct strbuf *base, const char *filename,
Nguyễn Thái Ngọc Duyed22b412014-09-21 03:55:06[diff] [blame]171 unsigned mode, int stage, struct archiver_context *c)
172{
173 struct directory *d;
Jeff King50a6c8e2016-02-22 22:44:35[diff] [blame]174 size_t len = st_add4(base->len, 1, strlen(filename), 1);
175 d = xmalloc(st_add(sizeof(*d), len));
Nguyễn Thái Ngọc Duyed22b412014-09-21 03:55:06[diff] [blame]176 d->up = c->bottom;
Nguyễn Thái Ngọc Duy6a0b0b62014-11-30 09:05:00[diff] [blame]177 d->baselen = base->len;
Nguyễn Thái Ngọc Duyed22b412014-09-21 03:55:06[diff] [blame]178 d->mode = mode;
179 d->stage = stage;
180 c->bottom = d;
Jeff Kingc7ab0ba2015-09-24 21:08:12[diff] [blame]181 d->len = xsnprintf(d->path, len, "%.*s%s/", (int)base->len, base->buf, filename);
brian m. carlson13609672015-03-13 23:39:30[diff] [blame]182 hashcpy(d->oid.hash, sha1);
Nguyễn Thái Ngọc Duyed22b412014-09-21 03:55:06[diff] [blame]183}
184
185static 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) ||
brian m. carlson13609672015-03-13 23:39:30[diff] [blame]196 write_archive_entry(d->oid.hash, d->path, d->baselen,
Nguyễn Thái Ngọc Duyed22b412014-09-21 03:55:06[diff] [blame]197 d->path + d->baselen, d->mode,
198 d->stage, c) != READ_TREE_RECURSIVE;
199 free(d);
200 return ret ? -1 : 0;
201}
202
203static int queue_or_write_archive_entry(const unsigned char *sha1,
Nguyễn Thái Ngọc Duy6a0b0b62014-11-30 09:05:00[diff] [blame]204 struct strbuf *base, const char *filename,
Nguyễn Thái Ngọc Duyed22b412014-09-21 03:55:06[diff] [blame]205 unsigned mode, int stage, void *context)
206{
207 struct archiver_context *c = context;
208
209 while (c->bottom &&
Nguyễn Thái Ngọc Duy6a0b0b62014-11-30 09:05:00[diff] [blame]210 !(base->len >= c->bottom->len &&
211 !strncmp(base->buf, c->bottom->path, c->bottom->len))) {
Nguyễn Thái Ngọc Duyed22b412014-09-21 03:55:06[diff] [blame]212 struct directory *next = c->bottom->up;
213 free(c->bottom);
214 c->bottom = next;
215 }
216
217 if (S_ISDIR(mode)) {
Nguyễn Thái Ngọc Duy6a0b0b62014-11-30 09:05:00[diff] [blame]218 queue_directory(sha1, base, filename,
Nguyễn Thái Ngọc Duyed22b412014-09-21 03:55:06[diff] [blame]219 mode, stage, c);
220 return READ_TREE_RECURSIVE;
221 }
222
223 if (write_directory(c))
224 return -1;
Nguyễn Thái Ngọc Duy6a0b0b62014-11-30 09:05:00[diff] [blame]225 return write_archive_entry(sha1, base->buf, base->len, filename, mode,
Nguyễn Thái Ngọc Duyed22b412014-09-21 03:55:06[diff] [blame]226 stage, context);
227}
228
René Scharfe562e25a2008-07-14 19:22:24[diff] [blame]229int write_archive_entries(struct archiver_args *args,
230 write_archive_entry_fn_t write_entry)
231{
232 struct archiver_context context;
Nguyễn Thái Ngọc Duyba053ea2009-04-17 22:18:05[diff] [blame]233 struct unpack_trees_options opts;
234 struct tree_desc t;
René Scharfe562e25a2008-07-14 19:22:24[diff] [blame]235 int err;
236
237 if (args->baselen > 0 && args->base[args->baselen - 1] == '/') {
238 size_t len = args->baselen;
239
240 while (len > 1 && args->base[len - 2] == '/')
241 len--;
242 if (args->verbose)
243 fprintf(stderr, "%.*s\n", (int)len, args->base);
brian m. carlsoned1c9972015-11-10 02:22:29[diff] [blame]244 err = write_entry(args, args->tree->object.oid.hash, args->base,
Nguyễn Thái Ngọc Duy9cb513b2012-05-03 01:51:03[diff] [blame]245 len, 040777);
René Scharfe562e25a2008-07-14 19:22:24[diff] [blame]246 if (err)
247 return err;
248 }
249
Nguyễn Thái Ngọc Duyed22b412014-09-21 03:55:06[diff] [blame]250 memset(&context, 0, sizeof(context));
René Scharfe562e25a2008-07-14 19:22:24[diff] [blame]251 context.args = args;
252 context.write_entry = write_entry;
253
Nguyễn Thái Ngọc Duyba053ea2009-04-17 22:18:05[diff] [blame]254 /*
255 * Setup index and instruct attr to read index only
256 */
257 if (!args->worktree_attributes) {
258 memset(&opts, 0, sizeof(opts));
259 opts.index_only = 1;
260 opts.head_idx = -1;
261 opts.src_index = &the_index;
262 opts.dst_index = &the_index;
263 opts.fn = oneway_merge;
264 init_tree_desc(&t, args->tree->buffer, args->tree->size);
265 if (unpack_trees(1, &t, &opts))
266 return -1;
267 git_attr_set_direction(GIT_ATTR_INDEX, &the_index);
268 }
269
Nguyễn Thái Ngọc Duyf3e743a2013-07-14 08:35:44[diff] [blame]270 err = read_tree_recursive(args->tree, "", 0, 0, &args->pathspec,
Nguyễn Thái Ngọc Duyed22b412014-09-21 03:55:06[diff] [blame]271 args->pathspec.has_wildcard ?
272 queue_or_write_archive_entry :
Nguyễn Thái Ngọc Duy6a0b0b62014-11-30 09:05:00[diff] [blame]273 write_archive_entry_buf,
Nguyễn Thái Ngọc Duyed22b412014-09-21 03:55:06[diff] [blame]274 &context);
René Scharfe562e25a2008-07-14 19:22:24[diff] [blame]275 if (err == READ_TREE_RECURSIVE)
276 err = 0;
Nguyễn Thái Ngọc Duyed22b412014-09-21 03:55:06[diff] [blame]277 while (context.bottom) {
278 struct directory *next = context.bottom->up;
279 free(context.bottom);
280 context.bottom = next;
281 }
René Scharfe562e25a2008-07-14 19:22:24[diff] [blame]282 return err;
283}
Rene Scharfe6e94e682008-07-25 10:41:21[diff] [blame]284
Rene Scharfec0885432008-07-25 10:41:22[diff] [blame]285static const struct archiver *lookup_archiver(const char *name)
286{
287 int i;
288
Rene Scharfe4fac1d32008-07-25 10:41:26[diff] [blame]289 if (!name)
290 return NULL;
291
Jeff King13e0f882011-06-22 01:23:33[diff] [blame]292 for (i = 0; i < nr_archivers; i++) {
293 if (!strcmp(name, archivers[i]->name))
294 return archivers[i];
Rene Scharfec0885432008-07-25 10:41:22[diff] [blame]295 }
296 return NULL;
297}
298
Nguyễn Thái Ngọc Duy6a0b0b62014-11-30 09:05:00[diff] [blame]299static int reject_entry(const unsigned char *sha1, struct strbuf *base,
300 const char *filename, unsigned mode,
René Scharfed5f53d62009-12-12 15:00:41[diff] [blame]301 int stage, void *context)
302{
Nguyễn Thái Ngọc Duyed22b412014-09-21 03:55:06[diff] [blame]303 int ret = -1;
304 if (S_ISDIR(mode)) {
305 struct strbuf sb = STRBUF_INIT;
Nguyễn Thái Ngọc Duy6a0b0b62014-11-30 09:05:00[diff] [blame]306 strbuf_addbuf(&sb, base);
Nguyễn Thái Ngọc Duyed22b412014-09-21 03:55:06[diff] [blame]307 strbuf_addstr(&sb, filename);
308 if (!match_pathspec(context, sb.buf, sb.len, 0, NULL, 1))
309 ret = READ_TREE_RECURSIVE;
310 strbuf_release(&sb);
311 }
312 return ret;
René Scharfed5f53d62009-12-12 15:00:41[diff] [blame]313}
314
315static int path_exists(struct tree *tree, const char *path)
316{
Nguyễn Thái Ngọc Duyf0096c02011-03-25 09:34:19[diff] [blame]317 const char *paths[] = { path, NULL };
318 struct pathspec pathspec;
319 int ret;
René Scharfed5f53d62009-12-12 15:00:41[diff] [blame]320
Nguyễn Thái Ngọc Duyf3e743a2013-07-14 08:35:44[diff] [blame]321 parse_pathspec(&pathspec, 0, 0, "", paths);
Nguyễn Thái Ngọc Duyed22b412014-09-21 03:55:06[diff] [blame]322 pathspec.recursive = 1;
323 ret = read_tree_recursive(tree, "", 0, 0, &pathspec,
324 reject_entry, &pathspec);
Junio C Hamanoed6e8032016-06-02 21:09:22[diff] [blame]325 clear_pathspec(&pathspec);
Nguyễn Thái Ngọc Duyf0096c02011-03-25 09:34:19[diff] [blame]326 return ret != 0;
René Scharfed5f53d62009-12-12 15:00:41[diff] [blame]327}
328
Rene Scharfec0885432008-07-25 10:41:22[diff] [blame]329static void parse_pathspec_arg(const char **pathspec,
330 struct archiver_args *ar_args)
331{
Nguyễn Thái Ngọc Duyf3e743a2013-07-14 08:35:44[diff] [blame]332 /*
333 * must be consistent with parse_pathspec in path_exists()
334 * Also if pathspec patterns are dependent, we're in big
335 * trouble as we test each one separately
336 */
337 parse_pathspec(&ar_args->pathspec, 0,
338 PATHSPEC_PREFER_FULL,
339 "", pathspec);
Nguyễn Thái Ngọc Duyed22b412014-09-21 03:55:06[diff] [blame]340 ar_args->pathspec.recursive = 1;
René Scharfed5f53d62009-12-12 15:00:41[diff] [blame]341 if (pathspec) {
342 while (*pathspec) {
Jeff Kingbd54cf12013-03-11 01:32:32[diff] [blame]343 if (**pathspec && !path_exists(ar_args->tree, *pathspec))
Nguyễn Thái Ngọc Duyf3e743a2013-07-14 08:35:44[diff] [blame]344 die(_("pathspec '%s' did not match any files"), *pathspec);
René Scharfed5f53d62009-12-12 15:00:41[diff] [blame]345 pathspec++;
346 }
347 }
Rene Scharfec0885432008-07-25 10:41:22[diff] [blame]348}
349
350static void parse_treeish_arg(const char **argv,
Jeff Kingee27ca42011-11-17 23:04:22[diff] [blame]351 struct archiver_args *ar_args, const char *prefix,
352 int remote)
Rene Scharfec0885432008-07-25 10:41:22[diff] [blame]353{
354 const char *name = argv[0];
355 const unsigned char *commit_sha1;
356 time_t archive_time;
357 struct tree *tree;
358 const struct commit *commit;
brian m. carlson13609672015-03-13 23:39:30[diff] [blame]359 struct object_id oid;
Rene Scharfec0885432008-07-25 10:41:22[diff] [blame]360
Jeff Kingee27ca42011-11-17 23:04:22[diff] [blame]361 /* Remotes are only allowed to fetch actual refs */
Scott J. Goldman7671b632014-02-28 10:04:19[diff] [blame]362 if (remote && !remote_allow_unreachable) {
Jeff Kingee27ca42011-11-17 23:04:22[diff] [blame]363 char *ref = NULL;
Rohit Mani2c5495f2014-03-08 06:48:31[diff] [blame]364 const char *colon = strchrnul(name, ':');
365 int refnamelen = colon - name;
Carlos Martín Nieto0f544ee2012-01-11 12:12:38[diff] [blame]366
brian m. carlson13609672015-03-13 23:39:30[diff] [blame]367 if (!dwim_ref(name, refnamelen, oid.hash, &ref))
René Scharfec51a3512012-05-18 05:15:17[diff] [blame]368 die("no such ref: %.*s", refnamelen, name);
Jeff Kingee27ca42011-11-17 23:04:22[diff] [blame]369 free(ref);
370 }
Carlos Martín Nieto0f544ee2012-01-11 12:12:38[diff] [blame]371
brian m. carlson13609672015-03-13 23:39:30[diff] [blame]372 if (get_sha1(name, oid.hash))
Carlos Martín Nieto0f544ee2012-01-11 12:12:38[diff] [blame]373 die("Not a valid object name");
Rene Scharfec0885432008-07-25 10:41:22[diff] [blame]374
brian m. carlson13609672015-03-13 23:39:30[diff] [blame]375 commit = lookup_commit_reference_gently(oid.hash, 1);
Rene Scharfec0885432008-07-25 10:41:22[diff] [blame]376 if (commit) {
brian m. carlsoned1c9972015-11-10 02:22:29[diff] [blame]377 commit_sha1 = commit->object.oid.hash;
Rene Scharfec0885432008-07-25 10:41:22[diff] [blame]378 archive_time = commit->date;
379 } else {
380 commit_sha1 = NULL;
381 archive_time = time(NULL);
382 }
383
brian m. carlson13609672015-03-13 23:39:30[diff] [blame]384 tree = parse_tree_indirect(oid.hash);
Rene Scharfec0885432008-07-25 10:41:22[diff] [blame]385 if (tree == NULL)
386 die("not a tree object");
387
388 if (prefix) {
brian m. carlson13609672015-03-13 23:39:30[diff] [blame]389 struct object_id tree_oid;
Rene Scharfec0885432008-07-25 10:41:22[diff] [blame]390 unsigned int mode;
391 int err;
392
brian m. carlsoned1c9972015-11-10 02:22:29[diff] [blame]393 err = get_tree_entry(tree->object.oid.hash, prefix,
brian m. carlson13609672015-03-13 23:39:30[diff] [blame]394 tree_oid.hash, &mode);
Rene Scharfec0885432008-07-25 10:41:22[diff] [blame]395 if (err || !S_ISDIR(mode))
396 die("current working directory is untracked");
397
brian m. carlson13609672015-03-13 23:39:30[diff] [blame]398 tree = parse_tree_indirect(tree_oid.hash);
Rene Scharfec0885432008-07-25 10:41:22[diff] [blame]399 }
400 ar_args->tree = tree;
401 ar_args->commit_sha1 = commit_sha1;
402 ar_args->commit = commit;
403 ar_args->time = archive_time;
404}
405
Rene Scharfe4fac1d32008-07-25 10:41:26[diff] [blame]406#define OPT__COMPR(s, v, h, p) \
407 { OPTION_SET_INT, (s), NULL, (v), NULL, (h), \
408 PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, (p) }
409#define OPT__COMPR_HIDDEN(s, v, p) \
410 { OPTION_SET_INT, (s), NULL, (v), NULL, "", \
411 PARSE_OPT_NOARG | PARSE_OPT_NONEG | PARSE_OPT_HIDDEN, NULL, (p) }
412
Rene Scharfec0885432008-07-25 10:41:22[diff] [blame]413static int parse_archive_args(int argc, const char **argv,
Jeff King56baa612011-06-22 01:24:48[diff] [blame]414 const struct archiver **ar, struct archiver_args *args,
Jeff King7b977302011-06-22 03:17:35[diff] [blame]415 const char *name_hint, int is_remote)
Rene Scharfec0885432008-07-25 10:41:22[diff] [blame]416{
Jeff King56baa612011-06-22 01:24:48[diff] [blame]417 const char *format = NULL;
Rene Scharfe4fac1d32008-07-25 10:41:26[diff] [blame]418 const char *base = NULL;
419 const char *remote = NULL;
420 const char *exec = NULL;
Carlos Manuel Duclos Vergaraaec0c1b2009-02-16 17:20:25[diff] [blame]421 const char *output = NULL;
Rene Scharfec0885432008-07-25 10:41:22[diff] [blame]422 int compression_level = -1;
423 int verbose = 0;
424 int i;
Rene Scharfe4fac1d32008-07-25 10:41:26[diff] [blame]425 int list = 0;
Nguyễn Thái Ngọc Duyba053ea2009-04-17 22:18:05[diff] [blame]426 int worktree_attributes = 0;
Rene Scharfe4fac1d32008-07-25 10:41:26[diff] [blame]427 struct option opts[] = {
428 OPT_GROUP(""),
Nguyễn Thái Ngọc Duy0012a382012-08-20 12:31:51[diff] [blame]429 OPT_STRING(0, "format", &format, N_("fmt"), N_("archive format")),
430 OPT_STRING(0, "prefix", &base, N_("prefix"),
431 N_("prepend prefix to each pathname in the archive")),
432 OPT_STRING('o', "output", &output, N_("file"),
433 N_("write the archive to this file")),
Junio C Hamanof858c642011-09-27 23:59:01[diff] [blame]434 OPT_BOOL(0, "worktree-attributes", &worktree_attributes,
Nguyễn Thái Ngọc Duy0012a382012-08-20 12:31:51[diff] [blame]435 N_("read .gitattributes in working directory")),
436 OPT__VERBOSE(&verbose, N_("report archived files on stderr")),
437 OPT__COMPR('0', &compression_level, N_("store only"), 0),
438 OPT__COMPR('1', &compression_level, N_("compress faster"), 1),
Rene Scharfe4fac1d32008-07-25 10:41:26[diff] [blame]439 OPT__COMPR_HIDDEN('2', &compression_level, 2),
440 OPT__COMPR_HIDDEN('3', &compression_level, 3),
441 OPT__COMPR_HIDDEN('4', &compression_level, 4),
442 OPT__COMPR_HIDDEN('5', &compression_level, 5),
443 OPT__COMPR_HIDDEN('6', &compression_level, 6),
444 OPT__COMPR_HIDDEN('7', &compression_level, 7),
445 OPT__COMPR_HIDDEN('8', &compression_level, 8),
Nguyễn Thái Ngọc Duy0012a382012-08-20 12:31:51[diff] [blame]446 OPT__COMPR('9', &compression_level, N_("compress better"), 9),
Rene Scharfe4fac1d32008-07-25 10:41:26[diff] [blame]447 OPT_GROUP(""),
Junio C Hamanof858c642011-09-27 23:59:01[diff] [blame]448 OPT_BOOL('l', "list", &list,
Nguyễn Thái Ngọc Duy0012a382012-08-20 12:31:51[diff] [blame]449 N_("list supported archive formats")),
Rene Scharfe4fac1d32008-07-25 10:41:26[diff] [blame]450 OPT_GROUP(""),
Nguyễn Thái Ngọc Duy0012a382012-08-20 12:31:51[diff] [blame]451 OPT_STRING(0, "remote", &remote, N_("repo"),
452 N_("retrieve the archive from remote repository <repo>")),
Nguyễn Thái Ngọc Duyb0ff9652012-08-20 12:32:54[diff] [blame]453 OPT_STRING(0, "exec", &exec, N_("command"),
Nguyễn Thái Ngọc Duy0012a382012-08-20 12:31:51[diff] [blame]454 N_("path to the remote git-upload-archive command")),
Rene Scharfe4fac1d32008-07-25 10:41:26[diff] [blame]455 OPT_END()
456 };
Rene Scharfec0885432008-07-25 10:41:22[diff] [blame]457
Stephen Boyd37782922009-05-23 18:53:12[diff] [blame]458 argc = parse_options(argc, argv, NULL, opts, archive_usage, 0);
Rene Scharfec0885432008-07-25 10:41:22[diff] [blame]459
Rene Scharfe4fac1d32008-07-25 10:41:26[diff] [blame]460 if (remote)
Vasco Almeida5a36d002016-08-08 11:16:00[diff] [blame]461 die(_("Unexpected option --remote"));
Rene Scharfe4fac1d32008-07-25 10:41:26[diff] [blame]462 if (exec)
Vasco Almeida5a36d002016-08-08 11:16:00[diff] [blame]463 die(_("Option --exec can only be used together with --remote"));
René Scharfe52e77872009-03-08 18:21:53[diff] [blame]464 if (output)
Vasco Almeida5a36d002016-08-08 11:16:00[diff] [blame]465 die(_("Unexpected option --output"));
Rene Scharfe4fac1d32008-07-25 10:41:26[diff] [blame]466
467 if (!base)
468 base = "";
469
470 if (list) {
Jeff King13e0f882011-06-22 01:23:33[diff] [blame]471 for (i = 0; i < nr_archivers; i++)
Jeff King7b977302011-06-22 03:17:35[diff] [blame]472 if (!is_remote || archivers[i]->flags & ARCHIVER_REMOTE)
473 printf("%s\n", archivers[i]->name);
Rene Scharfe4fac1d32008-07-25 10:41:26[diff] [blame]474 exit(0);
Rene Scharfec0885432008-07-25 10:41:22[diff] [blame]475 }
476
Jeff King56baa612011-06-22 01:24:48[diff] [blame]477 if (!format && name_hint)
478 format = archive_format_from_filename(name_hint);
479 if (!format)
480 format = "tar";
481
Rene Scharfec0885432008-07-25 10:41:22[diff] [blame]482 /* We need at least one parameter -- tree-ish */
Rene Scharfe4fac1d32008-07-25 10:41:26[diff] [blame]483 if (argc < 1)
484 usage_with_options(archive_usage, opts);
Rene Scharfec0885432008-07-25 10:41:22[diff] [blame]485 *ar = lookup_archiver(format);
Jeff King7b977302011-06-22 03:17:35[diff] [blame]486 if (!*ar || (is_remote && !((*ar)->flags & ARCHIVER_REMOTE)))
Vasco Almeida5a36d002016-08-08 11:16:00[diff] [blame]487 die(_("Unknown archive format '%s'"), format);
Rene Scharfec0885432008-07-25 10:41:22[diff] [blame]488
489 args->compression_level = Z_DEFAULT_COMPRESSION;
490 if (compression_level != -1) {
Jeff King13e0f882011-06-22 01:23:33[diff] [blame]491 if ((*ar)->flags & ARCHIVER_WANT_COMPRESSION_LEVELS)
Rene Scharfec0885432008-07-25 10:41:22[diff] [blame]492 args->compression_level = compression_level;
493 else {
Vasco Almeida5a36d002016-08-08 11:16:00[diff] [blame]494 die(_("Argument not supported for format '%s': -%d"),
Rene Scharfec0885432008-07-25 10:41:22[diff] [blame]495 format, compression_level);
496 }
497 }
498 args->verbose = verbose;
499 args->base = base;
500 args->baselen = strlen(base);
Nguyễn Thái Ngọc Duyba053ea2009-04-17 22:18:05[diff] [blame]501 args->worktree_attributes = worktree_attributes;
Rene Scharfec0885432008-07-25 10:41:22[diff] [blame]502
Rene Scharfe4fac1d32008-07-25 10:41:26[diff] [blame]503 return argc;
Rene Scharfec0885432008-07-25 10:41:22[diff] [blame]504}
505
Rene Scharfe6e94e682008-07-25 10:41:21[diff] [blame]506int write_archive(int argc, const char **argv, const char *prefix,
Junio C Hamanoeb0224c2016-11-22 21:37:04[diff] [blame]507 const char *name_hint, int remote)
Rene Scharfe6e94e682008-07-25 10:41:21[diff] [blame]508{
Rene Scharfe6e94e682008-07-25 10:41:21[diff] [blame]509 const struct archiver *ar = NULL;
510 struct archiver_args args;
Rene Scharfe6e94e682008-07-25 10:41:21[diff] [blame]511
Tanay Abhra95790ff2014-08-07 16:21:19[diff] [blame]512 git_config_get_bool("uploadarchive.allowunreachable", &remote_allow_unreachable);
513 git_config(git_default_config, NULL);
514
Jeff King13e0f882011-06-22 01:23:33[diff] [blame]515 init_tar_archiver();
516 init_zip_archiver();
Jeff King23212862011-06-15 22:31:28[diff] [blame]517
Jeff King7b977302011-06-22 03:17:35[diff] [blame]518 argc = parse_archive_args(argc, argv, &ar, &args, name_hint, remote);
Junio C Hamanoeb0224c2016-11-22 21:37:04[diff] [blame]519 if (!startup_info->have_repository) {
Jeff King23212862011-06-15 22:31:28[diff] [blame]520 /*
521 * We know this will die() with an error, so we could just
522 * die ourselves; but its error message will be more specific
523 * than what we could write here.
524 */
525 setup_git_directory();
526 }
Rene Scharfe6e94e682008-07-25 10:41:21[diff] [blame]527
Jeff Kingee27ca42011-11-17 23:04:22[diff] [blame]528 parse_treeish_arg(argv, &args, prefix, remote);
Rene Scharfe6e94e682008-07-25 10:41:21[diff] [blame]529 parse_pathspec_arg(argv + 1, &args);
530
Jeff King4d7c9892011-06-22 01:24:07[diff] [blame]531 return ar->write_archive(ar, &args);
Rene Scharfe6e94e682008-07-25 10:41:21[diff] [blame]532}
Jeff King56baa612011-06-22 01:24:48[diff] [blame]533
Jeff King08716b32011-06-22 01:25:25[diff] [blame]534static int match_extension(const char *filename, const char *ext)
535{
536 int prefixlen = strlen(filename) - strlen(ext);
537
538 /*
539 * We need 1 character for the '.', and 1 character to ensure that the
540 * prefix is non-empty (k.e., we don't match .tar.gz with no actual
541 * filename).
542 */
Junio C Hamanob1cdfb52013-10-15 22:27:17[diff] [blame]543 if (prefixlen < 2 || filename[prefixlen - 1] != '.')
Jeff King08716b32011-06-22 01:25:25[diff] [blame]544 return 0;
545 return !strcmp(filename + prefixlen, ext);
546}
547
Jeff King56baa612011-06-22 01:24:48[diff] [blame]548const char *archive_format_from_filename(const char *filename)
549{
Jeff King08716b32011-06-22 01:25:25[diff] [blame]550 int i;
551
552 for (i = 0; i < nr_archivers; i++)
553 if (match_extension(filename, archivers[i]->name))
554 return archivers[i]->name;
Jeff King56baa612011-06-22 01:24:48[diff] [blame]555 return NULL;
556}