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Commit | Line | Data |
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8bc9a0c7 LT |
1 | /* |
2 | * GIT - The information manager from hell | |
3 | * | |
4 | * Copyright (C) Linus Torvalds, 2005 | |
5 | */ | |
e83c5163 | 6 | #include "cache.h" |
b2141fc1 | 7 | #include "config.h" |
fb58c8d5 | 8 | #include "refs.h" |
c3c8835f | 9 | #include "builtin.h" |
d807c4a0 | 10 | #include "exec-cmd.h" |
596f91ee | 11 | #include "parse-options.h" |
e83c5163 | 12 | |
d3af621b | 13 | #ifndef DEFAULT_GIT_TEMPLATE_DIR |
d52fd42a | 14 | #define DEFAULT_GIT_TEMPLATE_DIR "/usr/share/git-core/templates" |
d3af621b JH |
15 | #endif |
16 | ||
c869753e SP |
17 | #ifdef NO_TRUSTABLE_FILEMODE |
18 | #define TEST_FILEMODE 0 | |
19 | #else | |
20 | #define TEST_FILEMODE 1 | |
21 | #endif | |
22 | ||
0a2c7eea DM |
23 | static int init_is_bare_repository = 0; |
24 | static int init_shared_repository = -1; | |
90b45187 | 25 | static const char *init_db_template_dir; |
0a2c7eea | 26 | |
fa0fccae | 27 | static void copy_templates_1(struct strbuf *path, struct strbuf *template_path, |
8d5afef0 JH |
28 | DIR *dir) |
29 | { | |
9c28390b | 30 | size_t path_baselen = path->len; |
fa0fccae | 31 | size_t template_baselen = template_path->len; |
8d5afef0 JH |
32 | struct dirent *de; |
33 | ||
34 | /* Note: if ".git/hooks" file exists in the repository being | |
35 | * re-initialized, /etc/core-git/templates/hooks/update would | |
f18d244a | 36 | * cause "git init" to fail here. I think this is sane but |
8d5afef0 JH |
37 | * it means that the set of templates we ship by default, along |
38 | * with the way the namespace under .git/ is organized, should | |
39 | * be really carefully chosen. | |
40 | */ | |
9c28390b | 41 | safe_create_dir(path->buf, 1); |
8d5afef0 JH |
42 | while ((de = readdir(dir)) != NULL) { |
43 | struct stat st_git, st_template; | |
8d5afef0 JH |
44 | int exists = 0; |
45 | ||
9c28390b | 46 | strbuf_setlen(path, path_baselen); |
fa0fccae | 47 | strbuf_setlen(template_path, template_baselen); |
9c28390b | 48 | |
8d5afef0 JH |
49 | if (de->d_name[0] == '.') |
50 | continue; | |
9c28390b | 51 | strbuf_addstr(path, de->d_name); |
fa0fccae | 52 | strbuf_addstr(template_path, de->d_name); |
9c28390b | 53 | if (lstat(path->buf, &st_git)) { |
8d5afef0 | 54 | if (errno != ENOENT) |
9c28390b | 55 | die_errno(_("cannot stat '%s'"), path->buf); |
8d5afef0 JH |
56 | } |
57 | else | |
58 | exists = 1; | |
59 | ||
fa0fccae BW |
60 | if (lstat(template_path->buf, &st_template)) |
61 | die_errno(_("cannot stat template '%s'"), template_path->buf); | |
8d5afef0 JH |
62 | |
63 | if (S_ISDIR(st_template.st_mode)) { | |
fa0fccae | 64 | DIR *subdir = opendir(template_path->buf); |
8d5afef0 | 65 | if (!subdir) |
fa0fccae | 66 | die_errno(_("cannot opendir '%s'"), template_path->buf); |
9c28390b | 67 | strbuf_addch(path, '/'); |
fa0fccae BW |
68 | strbuf_addch(template_path, '/'); |
69 | copy_templates_1(path, template_path, subdir); | |
8d5afef0 JH |
70 | closedir(subdir); |
71 | } | |
72 | else if (exists) | |
73 | continue; | |
74 | else if (S_ISLNK(st_template.st_mode)) { | |
9c28390b | 75 | struct strbuf lnk = STRBUF_INIT; |
765b496d JK |
76 | if (strbuf_readlink(&lnk, template_path->buf, |
77 | st_template.st_size) < 0) | |
fa0fccae | 78 | die_errno(_("cannot readlink '%s'"), template_path->buf); |
9c28390b JK |
79 | if (symlink(lnk.buf, path->buf)) |
80 | die_errno(_("cannot symlink '%s' '%s'"), | |
81 | lnk.buf, path->buf); | |
82 | strbuf_release(&lnk); | |
8d5afef0 JH |
83 | } |
84 | else if (S_ISREG(st_template.st_mode)) { | |
fa0fccae | 85 | if (copy_file(path->buf, template_path->buf, st_template.st_mode)) |
9c28390b | 86 | die_errno(_("cannot copy '%s' to '%s'"), |
fa0fccae | 87 | template_path->buf, path->buf); |
8d5afef0 JH |
88 | } |
89 | else | |
fa0fccae | 90 | error(_("ignoring template %s"), template_path->buf); |
8d5afef0 JH |
91 | } |
92 | } | |
93 | ||
f225aeb2 | 94 | static void copy_templates(const char *template_dir) |
8d5afef0 | 95 | { |
9c28390b JK |
96 | struct strbuf path = STRBUF_INIT; |
97 | struct strbuf template_path = STRBUF_INIT; | |
98 | size_t template_len; | |
e8805af1 | 99 | struct repository_format template_format = REPOSITORY_FORMAT_INIT; |
94ce1672 | 100 | struct strbuf err = STRBUF_INIT; |
8d5afef0 | 101 | DIR *dir; |
59362e56 | 102 | char *to_free = NULL; |
8d5afef0 | 103 | |
a47d1813 | 104 | if (!template_dir) |
d4ebc36c | 105 | template_dir = getenv(TEMPLATE_DIR_ENVIRONMENT); |
90b45187 SD |
106 | if (!template_dir) |
107 | template_dir = init_db_template_dir; | |
2de9de5e | 108 | if (!template_dir) |
59362e56 JH |
109 | template_dir = to_free = system_path(DEFAULT_GIT_TEMPLATE_DIR); |
110 | if (!template_dir[0]) { | |
111 | free(to_free); | |
172035f0 | 112 | return; |
59362e56 | 113 | } |
9c28390b JK |
114 | |
115 | strbuf_addstr(&template_path, template_dir); | |
116 | strbuf_complete(&template_path, '/'); | |
117 | template_len = template_path.len; | |
118 | ||
119 | dir = opendir(template_path.buf); | |
d3af621b | 120 | if (!dir) { |
44f560fc | 121 | warning(_("templates not found in %s"), template_dir); |
59362e56 | 122 | goto free_return; |
d3af621b JH |
123 | } |
124 | ||
4f629539 | 125 | /* Make sure that template is from the correct vintage */ |
9c28390b | 126 | strbuf_addstr(&template_path, "config"); |
94ce1672 | 127 | read_repository_format(&template_format, template_path.buf); |
9c28390b | 128 | strbuf_setlen(&template_path, template_len); |
4f629539 | 129 | |
94ce1672 JK |
130 | /* |
131 | * No mention of version at all is OK, but anything else should be | |
132 | * verified. | |
133 | */ | |
134 | if (template_format.version >= 0 && | |
135 | verify_repository_format(&template_format, &err) < 0) { | |
136 | warning(_("not copying templates from '%s': %s"), | |
137 | template_dir, err.buf); | |
138 | strbuf_release(&err); | |
59362e56 | 139 | goto close_free_return; |
4f629539 JH |
140 | } |
141 | ||
fe9aa0b2 | 142 | strbuf_addstr(&path, get_git_common_dir()); |
9c28390b JK |
143 | strbuf_complete(&path, '/'); |
144 | copy_templates_1(&path, &template_path, dir); | |
59362e56 | 145 | close_free_return: |
8d5afef0 | 146 | closedir(dir); |
59362e56 JH |
147 | free_return: |
148 | free(to_free); | |
9c28390b JK |
149 | strbuf_release(&path); |
150 | strbuf_release(&template_path); | |
e8805af1 | 151 | clear_repository_format(&template_format); |
8d5afef0 JH |
152 | } |
153 | ||
90b45187 SD |
154 | static int git_init_db_config(const char *k, const char *v, void *cb) |
155 | { | |
90b45187 SD |
156 | if (!strcmp(k, "init.templatedir")) |
157 | return git_config_pathname(&init_db_template_dir, k, v); | |
158 | ||
28785339 JS |
159 | if (starts_with(k, "core.")) |
160 | return platform_core_config(k, v, cb); | |
161 | ||
90b45187 SD |
162 | return 0; |
163 | } | |
164 | ||
84ccad8d JK |
165 | /* |
166 | * If the git_dir is not directly inside the working tree, then git will not | |
167 | * find it by default, and we need to set the worktree explicitly. | |
168 | */ | |
169 | static int needs_work_tree_config(const char *git_dir, const char *work_tree) | |
170 | { | |
171 | if (!strcmp(work_tree, "/") && !strcmp(git_dir, "/.git")) | |
172 | return 0; | |
173 | if (skip_prefix(git_dir, work_tree, &git_dir) && | |
174 | !strcmp(git_dir, "/.git")) | |
175 | return 0; | |
176 | return 1; | |
177 | } | |
178 | ||
6311cfaf | 179 | static int create_default_files(const char *template_path, |
8b8f7189 | 180 | const char *original_git_dir, |
181 | const struct repository_format *fmt) | |
cad88fdf | 182 | { |
4f629539 | 183 | struct stat st1; |
9c28390b JK |
184 | struct strbuf buf = STRBUF_INIT; |
185 | char *path; | |
4f629539 | 186 | char repo_version_string[10]; |
5cc8f372 | 187 | char junk[2]; |
ef0a89a6 | 188 | int reinit; |
c869753e | 189 | int filemode; |
6fb5acfd | 190 | struct strbuf err = STRBUF_INIT; |
8b8f7189 | 191 | int repo_version = GIT_REPO_VERSION; |
cad88fdf | 192 | |
90b45187 | 193 | /* Just look for `init.templatedir` */ |
28785339 | 194 | init_db_template_dir = NULL; /* re-set in case it was set before */ |
90b45187 SD |
195 | git_config(git_init_db_config, NULL); |
196 | ||
7c0a842b JK |
197 | /* |
198 | * First copy the templates -- we might have the default | |
4f629539 JH |
199 | * config file there, in which case we would want to read |
200 | * from it after installing. | |
4543926b JK |
201 | * |
202 | * Before reading that config, we also need to clear out any cached | |
203 | * values (since we've just potentially changed what's available on | |
204 | * disk). | |
4f629539 | 205 | */ |
f225aeb2 | 206 | copy_templates(template_path); |
4543926b JK |
207 | git_config_clear(); |
208 | reset_shared_repository(); | |
ef90d6d4 | 209 | git_config(git_default_config, NULL); |
5a688fe4 | 210 | |
7c0a842b JK |
211 | /* |
212 | * We must make sure command-line options continue to override any | |
213 | * values we might have just re-read from the config. | |
214 | */ | |
215 | is_bare_repository_cfg = init_is_bare_repository; | |
0a2c7eea | 216 | if (init_shared_repository != -1) |
7875acb6 | 217 | set_shared_repository(init_shared_repository); |
4f629539 | 218 | |
138086a7 JH |
219 | /* |
220 | * We would have created the above under user's umask -- under | |
221 | * shared-repository settings, we would need to fix them up. | |
222 | */ | |
7875acb6 | 223 | if (get_shared_repository()) { |
f225aeb2 | 224 | adjust_shared_perm(get_git_dir()); |
138086a7 JH |
225 | } |
226 | ||
6fb5acfd DT |
227 | /* |
228 | * We need to create a "refs" dir in any case so that older | |
229 | * versions of git can tell that this is a repository. | |
230 | */ | |
231 | safe_create_dir(git_path("refs"), 1); | |
232 | adjust_shared_perm(git_path("refs")); | |
233 | ||
234 | if (refs_init_db(&err)) | |
235 | die("failed to set up refs db: %s", err.buf); | |
236 | ||
cad88fdf LT |
237 | /* |
238 | * Create the default symlink from ".git/HEAD" to the "master" | |
8098a178 | 239 | * branch, if it does not exist yet. |
cad88fdf | 240 | */ |
9c28390b | 241 | path = git_path_buf(&buf, "HEAD"); |
5cc8f372 JS |
242 | reinit = (!access(path, R_OK) |
243 | || readlink(path, junk, sizeof(junk)-1) != -1); | |
ef0a89a6 | 244 | if (!reinit) { |
8b5157e4 | 245 | if (create_symref("HEAD", "refs/heads/master", NULL) < 0) |
cad88fdf | 246 | exit(1); |
cad88fdf | 247 | } |
e24317b4 | 248 | |
8b8f7189 | 249 | #ifndef ENABLE_SHA256 |
250 | if (fmt->hash_algo != GIT_HASH_SHA1) | |
251 | die(_("The hash algorithm %s is not supported in this build."), hash_algos[fmt->hash_algo].name); | |
252 | #endif | |
253 | ||
254 | if (fmt->hash_algo != GIT_HASH_SHA1) | |
255 | repo_version = GIT_REPO_VERSION_READ; | |
256 | ||
4f629539 | 257 | /* This forces creation of new config file */ |
5096d490 | 258 | xsnprintf(repo_version_string, sizeof(repo_version_string), |
8b8f7189 | 259 | "%d", repo_version); |
3d180648 | 260 | git_config_set("core.repositoryformatversion", repo_version_string); |
4f629539 | 261 | |
8b8f7189 | 262 | if (fmt->hash_algo != GIT_HASH_SHA1) |
263 | git_config_set("extensions.objectformat", | |
264 | hash_algos[fmt->hash_algo].name); | |
265 | ||
4f629539 | 266 | /* Check filemode trustability */ |
9c28390b | 267 | path = git_path_buf(&buf, "config"); |
c869753e SP |
268 | filemode = TEST_FILEMODE; |
269 | if (TEST_FILEMODE && !lstat(path, &st1)) { | |
4f629539 | 270 | struct stat st2; |
c869753e | 271 | filemode = (!chmod(path, st1.st_mode ^ S_IXUSR) && |
4f629539 | 272 | !lstat(path, &st2) && |
1f32ecff MH |
273 | st1.st_mode != st2.st_mode && |
274 | !chmod(path, st1.st_mode)); | |
c7bf68d6 TB |
275 | if (filemode && !reinit && (st1.st_mode & S_IXUSR)) |
276 | filemode = 0; | |
e24317b4 | 277 | } |
3d180648 | 278 | git_config_set("core.filemode", filemode ? "true" : "false"); |
ef0a89a6 | 279 | |
e90fdc39 | 280 | if (is_bare_repository()) |
3d180648 | 281 | git_config_set("core.bare", "true"); |
7d1864ce | 282 | else { |
e90fdc39 | 283 | const char *work_tree = get_git_work_tree(); |
3d180648 | 284 | git_config_set("core.bare", "false"); |
196055c2 | 285 | /* allow template config file to override the default */ |
341fb286 | 286 | if (log_all_ref_updates == LOG_REFS_UNSET) |
3d180648 | 287 | git_config_set("core.logallrefupdates", "true"); |
6311cfaf | 288 | if (needs_work_tree_config(original_git_dir, work_tree)) |
3d180648 | 289 | git_config_set("core.worktree", work_tree); |
7d1864ce | 290 | } |
75d24499 | 291 | |
75d24499 | 292 | if (!reinit) { |
2455406a | 293 | /* Check if symlink is supported in the work tree */ |
9c28390b | 294 | path = git_path_buf(&buf, "tXXXXXX"); |
75d24499 JH |
295 | if (!close(xmkstemp(path)) && |
296 | !unlink(path) && | |
297 | !symlink("testing", path) && | |
298 | !lstat(path, &st1) && | |
299 | S_ISLNK(st1.st_mode)) | |
300 | unlink(path); /* good */ | |
301 | else | |
3d180648 | 302 | git_config_set("core.symlinks", "false"); |
2455406a DP |
303 | |
304 | /* Check if the filesystem is case-insensitive */ | |
9c28390b | 305 | path = git_path_buf(&buf, "CoNfIg"); |
2455406a | 306 | if (!access(path, F_OK)) |
3d180648 | 307 | git_config_set("core.ignorecase", "true"); |
fdf72966 | 308 | probe_utf8_pathname_composition(); |
75d24499 JH |
309 | } |
310 | ||
9c28390b | 311 | strbuf_release(&buf); |
ef0a89a6 | 312 | return reinit; |
cad88fdf LT |
313 | } |
314 | ||
9173912b JN |
315 | static void create_object_directory(void) |
316 | { | |
9c28390b JK |
317 | struct strbuf path = STRBUF_INIT; |
318 | size_t baselen; | |
319 | ||
320 | strbuf_addstr(&path, get_object_directory()); | |
321 | baselen = path.len; | |
322 | ||
323 | safe_create_dir(path.buf, 1); | |
9173912b | 324 | |
9c28390b JK |
325 | strbuf_setlen(&path, baselen); |
326 | strbuf_addstr(&path, "/pack"); | |
327 | safe_create_dir(path.buf, 1); | |
9173912b | 328 | |
9c28390b JK |
329 | strbuf_setlen(&path, baselen); |
330 | strbuf_addstr(&path, "/info"); | |
331 | safe_create_dir(path.buf, 1); | |
9173912b | 332 | |
9c28390b | 333 | strbuf_release(&path); |
9173912b JN |
334 | } |
335 | ||
822d9406 | 336 | static void separate_git_dir(const char *git_dir, const char *git_link) |
b57fb80a NTND |
337 | { |
338 | struct stat st; | |
b57fb80a NTND |
339 | |
340 | if (!stat(git_link, &st)) { | |
341 | const char *src; | |
342 | ||
343 | if (S_ISREG(st.st_mode)) | |
13d6ec91 | 344 | src = read_gitfile(git_link); |
b57fb80a NTND |
345 | else if (S_ISDIR(st.st_mode)) |
346 | src = git_link; | |
347 | else | |
97f261b1 | 348 | die(_("unable to handle file type %d"), (int)st.st_mode); |
b57fb80a NTND |
349 | |
350 | if (rename(src, git_dir)) | |
2c050e01 | 351 | die_errno(_("unable to move %s to %s"), src, git_dir); |
b57fb80a NTND |
352 | } |
353 | ||
1f76a10b | 354 | write_file(git_link, "gitdir: %s", git_dir); |
b57fb80a NTND |
355 | } |
356 | ||
8b8f7189 | 357 | static void validate_hash_algorithm(struct repository_format *repo_fmt, int hash) |
358 | { | |
359 | /* | |
360 | * If we already have an initialized repo, don't allow the user to | |
361 | * specify a different algorithm, as that could cause corruption. | |
362 | * Otherwise, if the user has specified one on the command line, use it. | |
363 | */ | |
364 | if (repo_fmt->version >= 0 && hash != GIT_HASH_UNKNOWN && hash != repo_fmt->hash_algo) | |
365 | die(_("attempt to reinitialize repository with different hash")); | |
366 | else if (hash != GIT_HASH_UNKNOWN) | |
367 | repo_fmt->hash_algo = hash; | |
368 | } | |
369 | ||
33158701 | 370 | int init_db(const char *git_dir, const char *real_git_dir, |
8b8f7189 | 371 | const char *template_dir, int hash, unsigned int flags) |
f225aeb2 | 372 | { |
9173912b | 373 | int reinit; |
1bd19079 | 374 | int exist_ok = flags & INIT_DB_EXIST_OK; |
ce83eadd | 375 | char *original_git_dir = real_pathdup(git_dir, 1); |
8b8f7189 | 376 | struct repository_format repo_fmt = REPOSITORY_FORMAT_INIT; |
33158701 | 377 | |
1bd19079 NTND |
378 | if (real_git_dir) { |
379 | struct stat st; | |
33158701 | 380 | |
1bd19079 NTND |
381 | if (!exist_ok && !stat(git_dir, &st)) |
382 | die(_("%s already exists"), git_dir); | |
383 | ||
384 | if (!exist_ok && !stat(real_git_dir, &st)) | |
385 | die(_("%s already exists"), real_git_dir); | |
f225aeb2 | 386 | |
1bd19079 | 387 | set_git_dir(real_path(real_git_dir)); |
822d9406 NTND |
388 | git_dir = get_git_dir(); |
389 | separate_git_dir(git_dir, original_git_dir); | |
1bd19079 NTND |
390 | } |
391 | else { | |
392 | set_git_dir(real_path(git_dir)); | |
822d9406 | 393 | git_dir = get_git_dir(); |
1bd19079 NTND |
394 | } |
395 | startup_info->have_repository = 1; | |
f225aeb2 | 396 | |
28785339 JS |
397 | /* Just look for `core.hidedotfiles` */ |
398 | git_config(git_init_db_config, NULL); | |
399 | ||
b57fb80a | 400 | safe_create_dir(git_dir, 0); |
f225aeb2 | 401 | |
0a2c7eea DM |
402 | init_is_bare_repository = is_bare_repository(); |
403 | ||
f225aeb2 DB |
404 | /* Check to see if the repository version is right. |
405 | * Note that a newly created repository does not have | |
406 | * config file, so this will not fail. What we are catching | |
407 | * is an attempt to reinitialize new repository with an old tool. | |
408 | */ | |
8b8f7189 | 409 | check_repository_format(&repo_fmt); |
f225aeb2 | 410 | |
8b8f7189 | 411 | validate_hash_algorithm(&repo_fmt, hash); |
412 | ||
413 | reinit = create_default_files(template_dir, original_git_dir, &repo_fmt); | |
f225aeb2 | 414 | |
9173912b | 415 | create_object_directory(); |
f225aeb2 | 416 | |
7875acb6 | 417 | if (get_shared_repository()) { |
f225aeb2 DB |
418 | char buf[10]; |
419 | /* We do not spell "group" and such, so that | |
420 | * the configuration can be read by older version | |
421 | * of git. Note, we use octal numbers for new share modes, | |
422 | * and compatibility values for PERM_GROUP and | |
423 | * PERM_EVERYBODY. | |
424 | */ | |
7875acb6 | 425 | if (get_shared_repository() < 0) |
5a688fe4 | 426 | /* force to the mode value */ |
7875acb6 JK |
427 | xsnprintf(buf, sizeof(buf), "0%o", -get_shared_repository()); |
428 | else if (get_shared_repository() == PERM_GROUP) | |
5096d490 | 429 | xsnprintf(buf, sizeof(buf), "%d", OLD_PERM_GROUP); |
7875acb6 | 430 | else if (get_shared_repository() == PERM_EVERYBODY) |
5096d490 | 431 | xsnprintf(buf, sizeof(buf), "%d", OLD_PERM_EVERYBODY); |
f225aeb2 | 432 | else |
033abf97 | 433 | BUG("invalid value for shared_repository"); |
3d180648 PS |
434 | git_config_set("core.sharedrepository", buf); |
435 | git_config_set("receive.denyNonFastforwards", "true"); | |
f225aeb2 DB |
436 | } |
437 | ||
d06f15d9 | 438 | if (!(flags & INIT_DB_QUIET)) { |
d06f15d9 | 439 | int len = strlen(git_dir); |
3e5dd7e9 | 440 | |
c30364d0 VA |
441 | if (reinit) |
442 | printf(get_shared_repository() | |
443 | ? _("Reinitialized existing shared Git repository in %s%s\n") | |
444 | : _("Reinitialized existing Git repository in %s%s\n"), | |
445 | git_dir, len && git_dir[len-1] != '/' ? "/" : ""); | |
446 | else | |
447 | printf(get_shared_repository() | |
448 | ? _("Initialized empty shared Git repository in %s%s\n") | |
449 | : _("Initialized empty Git repository in %s%s\n"), | |
450 | git_dir, len && git_dir[len-1] != '/' ? "/" : ""); | |
d06f15d9 | 451 | } |
f225aeb2 | 452 | |
6311cfaf | 453 | free(original_git_dir); |
f225aeb2 DB |
454 | return 0; |
455 | } | |
456 | ||
457 | static int guess_repository_type(const char *git_dir) | |
6adcca3f | 458 | { |
6adcca3f | 459 | const char *slash; |
56b9f6e7 RS |
460 | char *cwd; |
461 | int cwd_is_git_dir; | |
6adcca3f | 462 | |
6adcca3f JH |
463 | /* |
464 | * "GIT_DIR=. git init" is always bare. | |
465 | * "GIT_DIR=`pwd` git init" too. | |
466 | */ | |
467 | if (!strcmp(".", git_dir)) | |
f225aeb2 | 468 | return 1; |
56b9f6e7 RS |
469 | cwd = xgetcwd(); |
470 | cwd_is_git_dir = !strcmp(git_dir, cwd); | |
471 | free(cwd); | |
472 | if (cwd_is_git_dir) | |
f225aeb2 | 473 | return 1; |
6adcca3f JH |
474 | /* |
475 | * "GIT_DIR=.git or GIT_DIR=something/.git is usually not. | |
476 | */ | |
477 | if (!strcmp(git_dir, ".git")) | |
f225aeb2 | 478 | return 0; |
6adcca3f JH |
479 | slash = strrchr(git_dir, '/'); |
480 | if (slash && !strcmp(slash, "/.git")) | |
f225aeb2 | 481 | return 0; |
6adcca3f JH |
482 | |
483 | /* | |
484 | * Otherwise it is often bare. At this point | |
485 | * we are just guessing. | |
486 | */ | |
f225aeb2 | 487 | return 1; |
6adcca3f JH |
488 | } |
489 | ||
596f91ee MK |
490 | static int shared_callback(const struct option *opt, const char *arg, int unset) |
491 | { | |
517fe807 | 492 | BUG_ON_OPT_NEG(unset); |
596f91ee MK |
493 | *((int *) opt->value) = (arg) ? git_config_perm("arg", arg) : PERM_GROUP; |
494 | return 0; | |
495 | } | |
496 | ||
497 | static const char *const init_db_usage[] = { | |
9c9b4f2f | 498 | N_("git init [-q | --quiet] [--bare] [--template=<template-directory>] [--shared[=<permissions>]] [<directory>]"), |
596f91ee MK |
499 | NULL |
500 | }; | |
d3af621b | 501 | |
4696cb93 ZW |
502 | /* |
503 | * If you want to, you can share the DB area with any number of branches. | |
504 | * That has advantages: you can save space by sharing all the SHA1 objects. | |
505 | * On the other hand, it might just make lookup slower and messier. You | |
506 | * be the judge. The default case is to have one DB per managed directory. | |
507 | */ | |
a633fca0 | 508 | int cmd_init_db(int argc, const char **argv, const char *prefix) |
e83c5163 | 509 | { |
cad88fdf | 510 | const char *git_dir; |
b57fb80a | 511 | const char *real_git_dir = NULL; |
83518360 | 512 | const char *work_tree; |
c3c8835f | 513 | const char *template_dir = NULL; |
f225aeb2 | 514 | unsigned int flags = 0; |
8b8f7189 | 515 | const char *object_format = NULL; |
516 | int hash_algo = GIT_HASH_UNKNOWN; | |
596f91ee | 517 | const struct option init_db_options[] = { |
ce4a5e53 NTND |
518 | OPT_STRING(0, "template", &template_dir, N_("template-directory"), |
519 | N_("directory from which templates will be used")), | |
596f91ee | 520 | OPT_SET_INT(0, "bare", &is_bare_repository_cfg, |
ce4a5e53 | 521 | N_("create a bare repository"), 1), |
596f91ee | 522 | { OPTION_CALLBACK, 0, "shared", &init_shared_repository, |
ce4a5e53 NTND |
523 | N_("permissions"), |
524 | N_("specify that the git repository is to be shared amongst several users"), | |
596f91ee | 525 | PARSE_OPT_OPTARG | PARSE_OPT_NONEG, shared_callback, 0}, |
ce4a5e53 NTND |
526 | OPT_BIT('q', "quiet", &flags, N_("be quiet"), INIT_DB_QUIET), |
527 | OPT_STRING(0, "separate-git-dir", &real_git_dir, N_("gitdir"), | |
528 | N_("separate git dir from working tree")), | |
8b8f7189 | 529 | OPT_STRING(0, "object-format", &object_format, N_("hash"), |
530 | N_("specify the hash algorithm to use")), | |
596f91ee MK |
531 | OPT_END() |
532 | }; | |
533 | ||
0397ff24 JH |
534 | argc = parse_options(argc, argv, prefix, init_db_options, init_db_usage, 0); |
535 | ||
b57fb80a | 536 | if (real_git_dir && !is_absolute_path(real_git_dir)) |
ce83eadd | 537 | real_git_dir = real_pathdup(real_git_dir, 1); |
b57fb80a | 538 | |
e1df7fe4 NTND |
539 | if (template_dir && *template_dir && !is_absolute_path(template_dir)) |
540 | template_dir = absolute_pathdup(template_dir); | |
541 | ||
0397ff24 | 542 | if (argc == 1) { |
53d48885 NS |
543 | int mkdir_tried = 0; |
544 | retry: | |
0397ff24 | 545 | if (chdir(argv[0]) < 0) { |
53d48885 NS |
546 | if (!mkdir_tried) { |
547 | int saved; | |
548 | /* | |
549 | * At this point we haven't read any configuration, | |
550 | * and we know shared_repository should always be 0; | |
551 | * but just in case we play safe. | |
552 | */ | |
7875acb6 JK |
553 | saved = get_shared_repository(); |
554 | set_shared_repository(0); | |
0397ff24 | 555 | switch (safe_create_leading_directories_const(argv[0])) { |
f3565c0c MH |
556 | case SCLD_OK: |
557 | case SCLD_PERMS: | |
558 | break; | |
0be0521b | 559 | case SCLD_EXISTS: |
53d48885 NS |
560 | errno = EEXIST; |
561 | /* fallthru */ | |
53d48885 | 562 | default: |
f3565c0c | 563 | die_errno(_("cannot mkdir %s"), argv[0]); |
53d48885 NS |
564 | break; |
565 | } | |
7875acb6 | 566 | set_shared_repository(saved); |
0397ff24 | 567 | if (mkdir(argv[0], 0777) < 0) |
33e92e47 | 568 | die_errno(_("cannot mkdir %s"), argv[0]); |
53d48885 NS |
569 | mkdir_tried = 1; |
570 | goto retry; | |
571 | } | |
33e92e47 | 572 | die_errno(_("cannot chdir to %s"), argv[0]); |
53d48885 | 573 | } |
0397ff24 JH |
574 | } else if (0 < argc) { |
575 | usage(init_db_usage[0]); | |
d3af621b | 576 | } |
0397ff24 | 577 | if (is_bare_repository_cfg == 1) { |
4d3ab44d RS |
578 | char *cwd = xgetcwd(); |
579 | setenv(GIT_DIR_ENVIRONMENT, cwd, argc > 0); | |
580 | free(cwd); | |
d3af621b JH |
581 | } |
582 | ||
8b8f7189 | 583 | if (object_format) { |
584 | hash_algo = hash_algo_by_name(object_format); | |
585 | if (hash_algo == GIT_HASH_UNKNOWN) | |
586 | die(_("unknown hash algorithm '%s'"), object_format); | |
587 | } | |
588 | ||
5a688fe4 | 589 | if (init_shared_repository != -1) |
7875acb6 | 590 | set_shared_repository(init_shared_repository); |
5a688fe4 | 591 | |
6adcca3f JH |
592 | /* |
593 | * GIT_WORK_TREE makes sense only in conjunction with GIT_DIR | |
594 | * without --bare. Catch the error early. | |
595 | */ | |
e5b07c53 JK |
596 | git_dir = xstrdup_or_null(getenv(GIT_DIR_ENVIRONMENT)); |
597 | work_tree = xstrdup_or_null(getenv(GIT_WORK_TREE_ENVIRONMENT)); | |
83518360 | 598 | if ((!git_dir || is_bare_repository_cfg == 1) && work_tree) |
33e92e47 ÆAB |
599 | die(_("%s (or --work-tree=<directory>) not allowed without " |
600 | "specifying %s (or --git-dir=<directory>)"), | |
6adcca3f JH |
601 | GIT_WORK_TREE_ENVIRONMENT, |
602 | GIT_DIR_ENVIRONMENT); | |
603 | ||
cad88fdf LT |
604 | /* |
605 | * Set up the default .git directory contents | |
606 | */ | |
ef0a89a6 | 607 | if (!git_dir) |
cad88fdf | 608 | git_dir = DEFAULT_GIT_DIR_ENVIRONMENT; |
af6e277c | 609 | |
f225aeb2 DB |
610 | if (is_bare_repository_cfg < 0) |
611 | is_bare_repository_cfg = guess_repository_type(git_dir); | |
612 | ||
613 | if (!is_bare_repository_cfg) { | |
b31d2022 NTND |
614 | const char *git_dir_parent = strrchr(git_dir, '/'); |
615 | if (git_dir_parent) { | |
616 | char *rel = xstrndup(git_dir, git_dir_parent - git_dir); | |
ce83eadd | 617 | git_work_tree_cfg = real_pathdup(rel, 1); |
b31d2022 | 618 | free(rel); |
f225aeb2 | 619 | } |
56b9f6e7 RS |
620 | if (!git_work_tree_cfg) |
621 | git_work_tree_cfg = xgetcwd(); | |
83518360 | 622 | if (work_tree) |
2d186c8b | 623 | set_git_work_tree(work_tree); |
83518360 NTND |
624 | else |
625 | set_git_work_tree(git_work_tree_cfg); | |
f225aeb2 | 626 | if (access(get_git_work_tree(), X_OK)) |
33e92e47 | 627 | die_errno (_("Cannot access work tree '%s'"), |
0721c314 | 628 | get_git_work_tree()); |
94df2506 | 629 | } |
83518360 NTND |
630 | else { |
631 | if (work_tree) | |
2d186c8b | 632 | set_git_work_tree(work_tree); |
83518360 | 633 | } |
af6e277c | 634 | |
0e5bba53 | 635 | UNLEAK(real_git_dir); |
e5b07c53 JK |
636 | UNLEAK(git_dir); |
637 | UNLEAK(work_tree); | |
0e5bba53 | 638 | |
33158701 | 639 | flags |= INIT_DB_EXIST_OK; |
8b8f7189 | 640 | return init_db(git_dir, real_git_dir, template_dir, hash_algo, flags); |
e83c5163 | 641 | } |