blob: dd84caecbc2a07bca90c8524157d50a8fd5ae316 [file] [log] [blame]
Linus Torvalds8bc9a0c2005-04-07 15:16:10 -07001/*
2 * GIT - The information manager from hell
3 *
4 * Copyright (C) Linus Torvalds, 2005
5 */
Linus Torvaldse83c5162005-04-07 15:13:13 -07006#include "cache.h"
Timo Hirvonenc3c88352006-05-19 13:03:57 +03007#include "builtin.h"
Johannes Sixta47d1812007-11-13 21:05:04 +01008#include "exec_cmd.h"
Michał Kiedrowicz596f91e2009-07-12 12:24:32 +02009#include "parse-options.h"
Linus Torvaldse83c5162005-04-07 15:13:13 -070010
Junio C Hamanod3af6212005-08-06 12:50:14 -070011#ifndef DEFAULT_GIT_TEMPLATE_DIR
Johannes Sixtd52fd422007-06-11 11:10:47 +020012#define DEFAULT_GIT_TEMPLATE_DIR "/usr/share/git-core/templates"
Junio C Hamanod3af6212005-08-06 12:50:14 -070013#endif
14
Shawn O. Pearcec8697532006-12-30 23:53:55 -050015#ifdef NO_TRUSTABLE_FILEMODE
16#define TEST_FILEMODE 0
17#else
18#define TEST_FILEMODE 1
19#endif
20
Deskin Miller0a2c7ee2008-10-07 01:37:48 -040021static int init_is_bare_repository = 0;
22static int init_shared_repository = -1;
23
Johannes Schindelinaf6e2772005-12-22 23:19:37 +010024static void safe_create_dir(const char *dir, int share)
Zach Welchcb126d82005-04-19 21:48:15 -070025{
Junio C Hamanof312de02005-07-06 01:21:46 -070026 if (mkdir(dir, 0777) < 0) {
Zach Welchcb126d82005-04-19 21:48:15 -070027 if (errno != EEXIST) {
28 perror(dir);
29 exit(1);
30 }
31 }
Johannes Schindelinaf6e2772005-12-22 23:19:37 +010032 else if (share && adjust_shared_perm(dir))
Alexander Potashevd7530702009-01-04 21:38:41 +030033 die("Could not make %s writable by group", dir);
Zach Welchcb126d82005-04-19 21:48:15 -070034}
35
Junio C Hamano8d5afef2005-08-02 16:45:21 -070036static void copy_templates_1(char *path, int baselen,
37 char *template, int template_baselen,
38 DIR *dir)
39{
40 struct dirent *de;
41
42 /* Note: if ".git/hooks" file exists in the repository being
43 * re-initialized, /etc/core-git/templates/hooks/update would
Heikki Orsilaf18d2442008-09-13 20:18:36 +030044 * cause "git init" to fail here. I think this is sane but
Junio C Hamano8d5afef2005-08-02 16:45:21 -070045 * it means that the set of templates we ship by default, along
46 * with the way the namespace under .git/ is organized, should
47 * be really carefully chosen.
48 */
Johannes Schindelinaf6e2772005-12-22 23:19:37 +010049 safe_create_dir(path, 1);
Junio C Hamano8d5afef2005-08-02 16:45:21 -070050 while ((de = readdir(dir)) != NULL) {
51 struct stat st_git, st_template;
52 int namelen;
53 int exists = 0;
54
55 if (de->d_name[0] == '.')
56 continue;
57 namelen = strlen(de->d_name);
58 if ((PATH_MAX <= baselen + namelen) ||
59 (PATH_MAX <= template_baselen + namelen))
60 die("insanely long template name %s", de->d_name);
61 memcpy(path + baselen, de->d_name, namelen+1);
62 memcpy(template + template_baselen, de->d_name, namelen+1);
63 if (lstat(path, &st_git)) {
64 if (errno != ENOENT)
Thomas Rast0721c312009-06-27 17:58:47 +020065 die_errno("cannot stat '%s'", path);
Junio C Hamano8d5afef2005-08-02 16:45:21 -070066 }
67 else
68 exists = 1;
69
70 if (lstat(template, &st_template))
Thomas Rast0721c312009-06-27 17:58:47 +020071 die_errno("cannot stat template '%s'", template);
Junio C Hamano8d5afef2005-08-02 16:45:21 -070072
73 if (S_ISDIR(st_template.st_mode)) {
74 DIR *subdir = opendir(template);
75 int baselen_sub = baselen + namelen;
76 int template_baselen_sub = template_baselen + namelen;
77 if (!subdir)
Thomas Rast0721c312009-06-27 17:58:47 +020078 die_errno("cannot opendir '%s'", template);
Junio C Hamano8d5afef2005-08-02 16:45:21 -070079 path[baselen_sub++] =
80 template[template_baselen_sub++] = '/';
81 path[baselen_sub] =
82 template[template_baselen_sub] = 0;
83 copy_templates_1(path, baselen_sub,
84 template, template_baselen_sub,
85 subdir);
86 closedir(subdir);
87 }
88 else if (exists)
89 continue;
90 else if (S_ISLNK(st_template.st_mode)) {
91 char lnk[256];
92 int len;
93 len = readlink(template, lnk, sizeof(lnk));
94 if (len < 0)
Thomas Rast0721c312009-06-27 17:58:47 +020095 die_errno("cannot readlink '%s'", template);
Junio C Hamano8d5afef2005-08-02 16:45:21 -070096 if (sizeof(lnk) <= len)
97 die("insanely long symlink %s", template);
98 lnk[len] = 0;
99 if (symlink(lnk, path))
Thomas Rast0721c312009-06-27 17:58:47 +0200100 die_errno("cannot symlink '%s' '%s'", lnk, path);
Junio C Hamano8d5afef2005-08-02 16:45:21 -0700101 }
102 else if (S_ISREG(st_template.st_mode)) {
103 if (copy_file(path, template, st_template.st_mode))
Thomas Rast0721c312009-06-27 17:58:47 +0200104 die_errno("cannot copy '%s' to '%s'", template,
105 path);
Junio C Hamano8d5afef2005-08-02 16:45:21 -0700106 }
107 else
108 error("ignoring template %s", template);
109 }
110}
111
Daniel Barkalowf225aeb2008-04-27 13:39:27 -0400112static void copy_templates(const char *template_dir)
Junio C Hamano8d5afef2005-08-02 16:45:21 -0700113{
114 char path[PATH_MAX];
115 char template_path[PATH_MAX];
Junio C Hamanod3af6212005-08-06 12:50:14 -0700116 int template_len;
Junio C Hamano8d5afef2005-08-02 16:45:21 -0700117 DIR *dir;
Daniel Barkalowf225aeb2008-04-27 13:39:27 -0400118 const char *git_dir = get_git_dir();
119 int len = strlen(git_dir);
Junio C Hamano8d5afef2005-08-02 16:45:21 -0700120
Johannes Sixta47d1812007-11-13 21:05:04 +0100121 if (!template_dir)
Junio C Hamanod4ebc362006-12-19 01:28:15 -0800122 template_dir = getenv(TEMPLATE_DIR_ENVIRONMENT);
Steffen Prohaska2de9de52008-07-13 22:31:18 +0200123 if (!template_dir)
124 template_dir = system_path(DEFAULT_GIT_TEMPLATE_DIR);
Jeff King172035f2008-07-28 02:02:04 -0400125 if (!template_dir[0])
126 return;
Frank Lichtenheld32d17762009-04-18 16:14:02 +0200127 template_len = strlen(template_dir);
128 if (PATH_MAX <= (template_len+strlen("/config")))
129 die("insanely long template path %s", template_dir);
Junio C Hamano8d5afef2005-08-02 16:45:21 -0700130 strcpy(template_path, template_dir);
Junio C Hamano8d5afef2005-08-02 16:45:21 -0700131 if (template_path[template_len-1] != '/') {
132 template_path[template_len++] = '/';
133 template_path[template_len] = 0;
134 }
Junio C Hamano8d5afef2005-08-02 16:45:21 -0700135 dir = opendir(template_path);
Junio C Hamanod3af6212005-08-06 12:50:14 -0700136 if (!dir) {
Miklos Vajna2fd8c0a2009-03-24 02:09:13 +0100137 warning("templates not found %s", template_dir);
Junio C Hamano8d5afef2005-08-02 16:45:21 -0700138 return;
Junio C Hamanod3af6212005-08-06 12:50:14 -0700139 }
140
Junio C Hamano4f629532005-11-25 16:03:56 -0800141 /* Make sure that template is from the correct vintage */
142 strcpy(template_path + template_len, "config");
143 repository_format_version = 0;
144 git_config_from_file(check_repository_format_version,
Johannes Schindelinef90d6d2008-05-14 18:46:53 +0100145 template_path, NULL);
Junio C Hamano4f629532005-11-25 16:03:56 -0800146 template_path[template_len] = 0;
147
148 if (repository_format_version &&
149 repository_format_version != GIT_REPO_VERSION) {
Miklos Vajna2fd8c0a2009-03-24 02:09:13 +0100150 warning("not copying templates of "
151 "a wrong format version %d from '%s'",
Junio C Hamano4f629532005-11-25 16:03:56 -0800152 repository_format_version,
153 template_dir);
154 closedir(dir);
155 return;
156 }
157
Junio C Hamanod3af6212005-08-06 12:50:14 -0700158 memcpy(path, git_dir, len);
Daniel Barkalowf225aeb2008-04-27 13:39:27 -0400159 if (len && path[len - 1] != '/')
160 path[len++] = '/';
Petr Baudis1f961c12005-09-20 02:19:50 +0200161 path[len] = 0;
Junio C Hamano8d5afef2005-08-02 16:45:21 -0700162 copy_templates_1(path, len,
163 template_path, template_len,
164 dir);
165 closedir(dir);
166}
167
Daniel Barkalowf225aeb2008-04-27 13:39:27 -0400168static int create_default_files(const char *template_path)
Linus Torvaldscad88fd2005-05-30 10:20:44 -0700169{
Daniel Barkalowf225aeb2008-04-27 13:39:27 -0400170 const char *git_dir = get_git_dir();
Linus Torvaldscad88fd2005-05-30 10:20:44 -0700171 unsigned len = strlen(git_dir);
172 static char path[PATH_MAX];
Junio C Hamano4f629532005-11-25 16:03:56 -0800173 struct stat st1;
174 char repo_version_string[10];
Johannes Schindelin5cc8f372008-03-24 16:14:52 +0100175 char junk[2];
Shawn O. Pearceef0a89a2006-12-15 00:44:58 -0500176 int reinit;
Shawn O. Pearcec8697532006-12-30 23:53:55 -0500177 int filemode;
Linus Torvaldscad88fd2005-05-30 10:20:44 -0700178
179 if (len > sizeof(path)-50)
180 die("insane git directory %s", git_dir);
181 memcpy(path, git_dir, len);
182
183 if (len && path[len-1] != '/')
184 path[len++] = '/';
185
186 /*
187 * Create .git/refs/{heads,tags}
188 */
Daniel Barkalowf225aeb2008-04-27 13:39:27 -0400189 safe_create_dir(git_path("refs"), 1);
190 safe_create_dir(git_path("refs/heads"), 1);
191 safe_create_dir(git_path("refs/tags"), 1);
Linus Torvaldscad88fd2005-05-30 10:20:44 -0700192
Junio C Hamano4f629532005-11-25 16:03:56 -0800193 /* First copy the templates -- we might have the default
194 * config file there, in which case we would want to read
195 * from it after installing.
196 */
Daniel Barkalowf225aeb2008-04-27 13:39:27 -0400197 copy_templates(template_path);
Junio C Hamano4f629532005-11-25 16:03:56 -0800198
Johannes Schindelinef90d6d2008-05-14 18:46:53 +0100199 git_config(git_default_config, NULL);
Deskin Miller0a2c7ee2008-10-07 01:37:48 -0400200 is_bare_repository_cfg = init_is_bare_repository;
Junio C Hamano5a688fe2009-03-25 16:19:36 -0700201
202 /* reading existing config may have overwrote it */
Deskin Miller0a2c7ee2008-10-07 01:37:48 -0400203 if (init_shared_repository != -1)
204 shared_repository = init_shared_repository;
Junio C Hamano4f629532005-11-25 16:03:56 -0800205
Linus Torvaldscad88fd2005-05-30 10:20:44 -0700206 /*
Junio C Hamano138086a2006-06-09 22:07:23 -0700207 * We would have created the above under user's umask -- under
208 * shared-repository settings, we would need to fix them up.
209 */
210 if (shared_repository) {
Daniel Barkalowf225aeb2008-04-27 13:39:27 -0400211 adjust_shared_perm(get_git_dir());
212 adjust_shared_perm(git_path("refs"));
213 adjust_shared_perm(git_path("refs/heads"));
214 adjust_shared_perm(git_path("refs/tags"));
Junio C Hamano138086a2006-06-09 22:07:23 -0700215 }
216
217 /*
Linus Torvaldscad88fd2005-05-30 10:20:44 -0700218 * Create the default symlink from ".git/HEAD" to the "master"
Junio C Hamano8098a172005-09-30 14:26:57 -0700219 * branch, if it does not exist yet.
Linus Torvaldscad88fd2005-05-30 10:20:44 -0700220 */
221 strcpy(path + len, "HEAD");
Johannes Schindelin5cc8f372008-03-24 16:14:52 +0100222 reinit = (!access(path, R_OK)
223 || readlink(path, junk, sizeof(junk)-1) != -1);
Shawn O. Pearceef0a89a2006-12-15 00:44:58 -0500224 if (!reinit) {
Nicolas Pitre8b5157e2007-01-26 17:26:10 -0500225 if (create_symref("HEAD", "refs/heads/master", NULL) < 0)
Linus Torvaldscad88fd2005-05-30 10:20:44 -0700226 exit(1);
Linus Torvaldscad88fd2005-05-30 10:20:44 -0700227 }
Junio C Hamano4f629532005-11-25 16:03:56 -0800228
229 /* This forces creation of new config file */
230 sprintf(repo_version_string, "%d", GIT_REPO_VERSION);
231 git_config_set("core.repositoryformatversion", repo_version_string);
232
Junio C Hamano8098a172005-09-30 14:26:57 -0700233 path[len] = 0;
Johannes Schindeline24317b2005-10-26 01:43:03 +0200234 strcpy(path + len, "config");
Johannes Schindeline24317b2005-10-26 01:43:03 +0200235
Junio C Hamano4f629532005-11-25 16:03:56 -0800236 /* Check filemode trustability */
Shawn O. Pearcec8697532006-12-30 23:53:55 -0500237 filemode = TEST_FILEMODE;
238 if (TEST_FILEMODE && !lstat(path, &st1)) {
Junio C Hamano4f629532005-11-25 16:03:56 -0800239 struct stat st2;
Shawn O. Pearcec8697532006-12-30 23:53:55 -0500240 filemode = (!chmod(path, st1.st_mode ^ S_IXUSR) &&
Junio C Hamano4f629532005-11-25 16:03:56 -0800241 !lstat(path, &st2) &&
242 st1.st_mode != st2.st_mode);
Johannes Schindeline24317b2005-10-26 01:43:03 +0200243 }
Shawn O. Pearcec8697532006-12-30 23:53:55 -0500244 git_config_set("core.filemode", filemode ? "true" : "false");
Shawn O. Pearceef0a89a2006-12-15 00:44:58 -0500245
Johannes Schindeline90fdc32007-08-01 01:30:14 +0100246 if (is_bare_repository())
Junio C Hamano7d1864c2007-01-07 02:00:28 -0800247 git_config_set("core.bare", "true");
Junio C Hamano7d1864c2007-01-07 02:00:28 -0800248 else {
Johannes Schindeline90fdc32007-08-01 01:30:14 +0100249 const char *work_tree = get_git_work_tree();
Junio C Hamano7d1864c2007-01-07 02:00:28 -0800250 git_config_set("core.bare", "false");
Alex Riesen196055c2007-01-23 16:51:18 +0100251 /* allow template config file to override the default */
252 if (log_all_ref_updates == -1)
253 git_config_set("core.logallrefupdates", "true");
Daniel Barkalowf225aeb2008-04-27 13:39:27 -0400254 if (prefixcmp(git_dir, work_tree) ||
255 strcmp(git_dir + strlen(work_tree), "/.git")) {
Johannes Schindeline90fdc32007-08-01 01:30:14 +0100256 git_config_set("core.worktree", work_tree);
Daniel Barkalowf225aeb2008-04-27 13:39:27 -0400257 }
Junio C Hamano7d1864c2007-01-07 02:00:28 -0800258 }
Junio C Hamano75d24492007-08-31 00:25:04 -0700259
Junio C Hamano75d24492007-08-31 00:25:04 -0700260 if (!reinit) {
Dmitry Potapov24554062008-05-11 18:16:39 +0200261 /* Check if symlink is supported in the work tree */
Junio C Hamano75d24492007-08-31 00:25:04 -0700262 path[len] = 0;
263 strcpy(path + len, "tXXXXXX");
264 if (!close(xmkstemp(path)) &&
265 !unlink(path) &&
266 !symlink("testing", path) &&
267 !lstat(path, &st1) &&
268 S_ISLNK(st1.st_mode))
269 unlink(path); /* good */
270 else
271 git_config_set("core.symlinks", "false");
Dmitry Potapov24554062008-05-11 18:16:39 +0200272
273 /* Check if the filesystem is case-insensitive */
274 path[len] = 0;
275 strcpy(path + len, "CoNfIg");
276 if (!access(path, F_OK))
277 git_config_set("core.ignorecase", "true");
Junio C Hamano75d24492007-08-31 00:25:04 -0700278 }
279
Shawn O. Pearceef0a89a2006-12-15 00:44:58 -0500280 return reinit;
Linus Torvaldscad88fd2005-05-30 10:20:44 -0700281}
282
Daniel Barkalowf225aeb2008-04-27 13:39:27 -0400283int init_db(const char *template_dir, unsigned int flags)
Junio C Hamano6adcca32007-08-27 00:58:06 -0700284{
Junio C Hamanod19938a2005-05-09 17:57:56 -0700285 const char *sha1_dir;
Timo Hirvonenc3c88352006-05-19 13:03:57 +0300286 char *path;
Daniel Barkalowf225aeb2008-04-27 13:39:27 -0400287 int len, reinit;
Linus Torvaldse83c5162005-04-07 15:13:13 -0700288
Daniel Barkalowf225aeb2008-04-27 13:39:27 -0400289 safe_create_dir(get_git_dir(), 0);
Junio C Hamano4f629532005-11-25 16:03:56 -0800290
Deskin Miller0a2c7ee2008-10-07 01:37:48 -0400291 init_is_bare_repository = is_bare_repository();
292
Junio C Hamano4f629532005-11-25 16:03:56 -0800293 /* Check to see if the repository version is right.
294 * Note that a newly created repository does not have
295 * config file, so this will not fail. What we are catching
296 * is an attempt to reinitialize new repository with an old tool.
297 */
298 check_repository_format();
299
Daniel Barkalowf225aeb2008-04-27 13:39:27 -0400300 reinit = create_default_files(template_dir);
Linus Torvaldscad88fd2005-05-30 10:20:44 -0700301
Linus Torvaldscad88fd2005-05-30 10:20:44 -0700302 sha1_dir = get_object_directory();
Linus Torvaldse83c5162005-04-07 15:13:13 -0700303 len = strlen(sha1_dir);
Christopher Li812666c2005-04-26 12:00:58 -0700304 path = xmalloc(len + 40);
Linus Torvaldse83c5162005-04-07 15:13:13 -0700305 memcpy(path, sha1_dir, len);
Zach Welchcb126d82005-04-19 21:48:15 -0700306
Johannes Schindelinaf6e2772005-12-22 23:19:37 +0100307 safe_create_dir(sha1_dir, 1);
Linus Torvaldsf49fb352005-06-27 18:26:11 -0700308 strcpy(path+len, "/pack");
Johannes Schindelinaf6e2772005-12-22 23:19:37 +0100309 safe_create_dir(path, 1);
Junio C Hamanod57306c2005-08-20 02:05:31 -0700310 strcpy(path+len, "/info");
Johannes Schindelinaf6e2772005-12-22 23:19:37 +0100311 safe_create_dir(path, 1);
312
Junio C Hamano94df2502006-06-09 23:09:49 -0700313 if (shared_repository) {
314 char buf[10];
315 /* We do not spell "group" and such, so that
316 * the configuration can be read by older version
Heikki Orsila06cbe852008-04-16 11:34:24 +0300317 * of git. Note, we use octal numbers for new share modes,
318 * and compatibility values for PERM_GROUP and
319 * PERM_EVERYBODY.
Junio C Hamano94df2502006-06-09 23:09:49 -0700320 */
Junio C Hamano5a688fe2009-03-25 16:19:36 -0700321 if (shared_repository < 0)
322 /* force to the mode value */
323 sprintf(buf, "0%o", -shared_repository);
324 else if (shared_repository == PERM_GROUP)
Heikki Orsila06cbe852008-04-16 11:34:24 +0300325 sprintf(buf, "%d", OLD_PERM_GROUP);
326 else if (shared_repository == PERM_EVERYBODY)
327 sprintf(buf, "%d", OLD_PERM_EVERYBODY);
328 else
Junio C Hamano5a688fe2009-03-25 16:19:36 -0700329 die("oops");
Junio C Hamano94df2502006-06-09 23:09:49 -0700330 git_config_set("core.sharedrepository", buf);
Johannes Schindelin11031d72006-09-21 01:07:54 +0200331 git_config_set("receive.denyNonFastforwards", "true");
Junio C Hamano94df2502006-06-09 23:09:49 -0700332 }
Johannes Schindelinaf6e2772005-12-22 23:19:37 +0100333
Daniel Barkalowf225aeb2008-04-27 13:39:27 -0400334 if (!(flags & INIT_DB_QUIET))
Jeffrey C. Ollie45765182007-06-07 07:50:29 -0500335 printf("%s%s Git repository in %s/\n",
336 reinit ? "Reinitialized existing" : "Initialized empty",
337 shared_repository ? " shared" : "",
Daniel Barkalowf225aeb2008-04-27 13:39:27 -0400338 get_git_dir());
Shawn O. Pearceef0a89a2006-12-15 00:44:58 -0500339
Linus Torvaldse83c5162005-04-07 15:13:13 -0700340 return 0;
341}
Daniel Barkalowf225aeb2008-04-27 13:39:27 -0400342
343static int guess_repository_type(const char *git_dir)
344{
345 char cwd[PATH_MAX];
346 const char *slash;
347
348 /*
349 * "GIT_DIR=. git init" is always bare.
350 * "GIT_DIR=`pwd` git init" too.
351 */
352 if (!strcmp(".", git_dir))
353 return 1;
354 if (!getcwd(cwd, sizeof(cwd)))
Thomas Rast0721c312009-06-27 17:58:47 +0200355 die_errno("cannot tell cwd");
Daniel Barkalowf225aeb2008-04-27 13:39:27 -0400356 if (!strcmp(git_dir, cwd))
357 return 1;
358 /*
359 * "GIT_DIR=.git or GIT_DIR=something/.git is usually not.
360 */
361 if (!strcmp(git_dir, ".git"))
362 return 0;
363 slash = strrchr(git_dir, '/');
364 if (slash && !strcmp(slash, "/.git"))
365 return 0;
366
367 /*
368 * Otherwise it is often bare. At this point
369 * we are just guessing.
370 */
371 return 1;
372}
373
Michał Kiedrowicz596f91e2009-07-12 12:24:32 +0200374static int shared_callback(const struct option *opt, const char *arg, int unset)
375{
376 *((int *) opt->value) = (arg) ? git_config_perm("arg", arg) : PERM_GROUP;
377 return 0;
378}
379
380static const char *const init_db_usage[] = {
Junio C Hamano0397ff22009-08-05 12:39:33 -0700381 "git init [-q | --quiet] [--bare] [--template=<template-directory>] [--shared[=<permissions>]] [directory]",
Michał Kiedrowicz596f91e2009-07-12 12:24:32 +0200382 NULL
383};
Daniel Barkalowf225aeb2008-04-27 13:39:27 -0400384
385/*
386 * If you want to, you can share the DB area with any number of branches.
387 * That has advantages: you can save space by sharing all the SHA1 objects.
388 * On the other hand, it might just make lookup slower and messier. You
389 * be the judge. The default case is to have one DB per managed directory.
390 */
391int cmd_init_db(int argc, const char **argv, const char *prefix)
392{
393 const char *git_dir;
394 const char *template_dir = NULL;
395 unsigned int flags = 0;
Michał Kiedrowicz596f91e2009-07-12 12:24:32 +0200396 const struct option init_db_options[] = {
397 OPT_STRING(0, "template", &template_dir, "template-directory",
398 "provide the directory from which templates will be used"),
399 OPT_SET_INT(0, "bare", &is_bare_repository_cfg,
400 "create a bare repository", 1),
401 { OPTION_CALLBACK, 0, "shared", &init_shared_repository,
402 "permissions",
403 "specify that the git repository is to be shared amongst several users",
404 PARSE_OPT_OPTARG | PARSE_OPT_NONEG, shared_callback, 0},
405 OPT_BIT('q', "quiet", &flags, "be quiet", INIT_DB_QUIET),
406 OPT_END()
407 };
Daniel Barkalowf225aeb2008-04-27 13:39:27 -0400408
Junio C Hamano0397ff22009-08-05 12:39:33 -0700409 argc = parse_options(argc, argv, prefix, init_db_options, init_db_usage, 0);
Michał Kiedrowicz596f91e2009-07-12 12:24:32 +0200410
Junio C Hamano0397ff22009-08-05 12:39:33 -0700411 if (argc == 1) {
Nanako Shiraishi53d48882009-07-25 06:59:28 +0900412 int mkdir_tried = 0;
413 retry:
Junio C Hamano0397ff22009-08-05 12:39:33 -0700414 if (chdir(argv[0]) < 0) {
Nanako Shiraishi53d48882009-07-25 06:59:28 +0900415 if (!mkdir_tried) {
416 int saved;
417 /*
418 * At this point we haven't read any configuration,
419 * and we know shared_repository should always be 0;
420 * but just in case we play safe.
421 */
422 saved = shared_repository;
423 shared_repository = 0;
Junio C Hamano0397ff22009-08-05 12:39:33 -0700424 switch (safe_create_leading_directories_const(argv[0])) {
Nanako Shiraishi53d48882009-07-25 06:59:28 +0900425 case -3:
426 errno = EEXIST;
427 /* fallthru */
428 case -1:
Junio C Hamano0397ff22009-08-05 12:39:33 -0700429 die_errno("cannot mkdir %s", argv[0]);
Nanako Shiraishi53d48882009-07-25 06:59:28 +0900430 break;
431 default:
432 break;
433 }
434 shared_repository = saved;
Junio C Hamano0397ff22009-08-05 12:39:33 -0700435 if (mkdir(argv[0], 0777) < 0)
436 die_errno("cannot mkdir %s", argv[0]);
Nanako Shiraishi53d48882009-07-25 06:59:28 +0900437 mkdir_tried = 1;
438 goto retry;
439 }
Junio C Hamano0397ff22009-08-05 12:39:33 -0700440 die_errno("cannot chdir to %s", argv[0]);
Nanako Shiraishi53d48882009-07-25 06:59:28 +0900441 }
Junio C Hamano0397ff22009-08-05 12:39:33 -0700442 } else if (0 < argc) {
443 usage(init_db_usage[0]);
Nanako Shiraishi53d48882009-07-25 06:59:28 +0900444 }
Junio C Hamano0397ff22009-08-05 12:39:33 -0700445 if (is_bare_repository_cfg == 1) {
Michał Kiedrowicz596f91e2009-07-12 12:24:32 +0200446 static char git_dir[PATH_MAX+1];
Nanako Shiraishi53d48882009-07-25 06:59:28 +0900447
448 setenv(GIT_DIR_ENVIRONMENT,
449 getcwd(git_dir, sizeof(git_dir)), 0);
Daniel Barkalowf225aeb2008-04-27 13:39:27 -0400450 }
451
Junio C Hamano5a688fe2009-03-25 16:19:36 -0700452 if (init_shared_repository != -1)
453 shared_repository = init_shared_repository;
454
Daniel Barkalowf225aeb2008-04-27 13:39:27 -0400455 /*
456 * GIT_WORK_TREE makes sense only in conjunction with GIT_DIR
457 * without --bare. Catch the error early.
458 */
459 git_dir = getenv(GIT_DIR_ENVIRONMENT);
460 if ((!git_dir || is_bare_repository_cfg == 1)
461 && getenv(GIT_WORK_TREE_ENVIRONMENT))
462 die("%s (or --work-tree=<directory>) not allowed without "
463 "specifying %s (or --git-dir=<directory>)",
464 GIT_WORK_TREE_ENVIRONMENT,
465 GIT_DIR_ENVIRONMENT);
466
467 /*
468 * Set up the default .git directory contents
469 */
470 if (!git_dir)
471 git_dir = DEFAULT_GIT_DIR_ENVIRONMENT;
472
473 if (is_bare_repository_cfg < 0)
474 is_bare_repository_cfg = guess_repository_type(git_dir);
475
476 if (!is_bare_repository_cfg) {
477 if (git_dir) {
478 const char *git_dir_parent = strrchr(git_dir, '/');
479 if (git_dir_parent) {
480 char *rel = xstrndup(git_dir, git_dir_parent - git_dir);
481 git_work_tree_cfg = xstrdup(make_absolute_path(rel));
482 free(rel);
483 }
484 }
485 if (!git_work_tree_cfg) {
486 git_work_tree_cfg = xcalloc(PATH_MAX, 1);
487 if (!getcwd(git_work_tree_cfg, PATH_MAX))
Thomas Rast0721c312009-06-27 17:58:47 +0200488 die_errno ("Cannot access current working directory");
Daniel Barkalowf225aeb2008-04-27 13:39:27 -0400489 }
490 if (access(get_git_work_tree(), X_OK))
Thomas Rast0721c312009-06-27 17:58:47 +0200491 die_errno ("Cannot access work tree '%s'",
492 get_git_work_tree());
Daniel Barkalowf225aeb2008-04-27 13:39:27 -0400493 }
494
495 set_git_dir(make_absolute_path(git_dir));
496
497 return init_db(template_dir, flags);
498}