#include "cache.h"
#include "abspath.h"
#include "config.h"
-#include "copy.h"
#include "environment.h"
#include "gettext.h"
-#include "refs.h"
#include "builtin.h"
-#include "exec-cmd.h"
#include "object-file.h"
#include "parse-options.h"
#include "path.h"
#include "setup.h"
-#include "worktree.h"
#include "wrapper.h"
-#ifndef DEFAULT_GIT_TEMPLATE_DIR
-#define DEFAULT_GIT_TEMPLATE_DIR "/usr/share/git-core/templates"
-#endif
-
-#ifdef NO_TRUSTABLE_FILEMODE
-#define TEST_FILEMODE 0
-#else
-#define TEST_FILEMODE 1
-#endif
-
-#define GIT_DEFAULT_HASH_ENVIRONMENT "GIT_DEFAULT_HASH"
-
-static int init_is_bare_repository = 0;
-static int init_shared_repository = -1;
-
-static void copy_templates_1(struct strbuf *path, struct strbuf *template_path,
- DIR *dir)
-{
- size_t path_baselen = path->len;
- size_t template_baselen = template_path->len;
- struct dirent *de;
-
- /* Note: if ".git/hooks" file exists in the repository being
- * re-initialized, /etc/core-git/templates/hooks/update would
- * cause "git init" to fail here. I think this is sane but
- * it means that the set of templates we ship by default, along
- * with the way the namespace under .git/ is organized, should
- * be really carefully chosen.
- */
- safe_create_dir(path->buf, 1);
- while ((de = readdir(dir)) != NULL) {
- struct stat st_git, st_template;
- int exists = 0;
-
- strbuf_setlen(path, path_baselen);
- strbuf_setlen(template_path, template_baselen);
-
- if (de->d_name[0] == '.')
- continue;
- strbuf_addstr(path, de->d_name);
- strbuf_addstr(template_path, de->d_name);
- if (lstat(path->buf, &st_git)) {
- if (errno != ENOENT)
- die_errno(_("cannot stat '%s'"), path->buf);
- }
- else
- exists = 1;
-
- if (lstat(template_path->buf, &st_template))
- die_errno(_("cannot stat template '%s'"), template_path->buf);
-
- if (S_ISDIR(st_template.st_mode)) {
- DIR *subdir = opendir(template_path->buf);
- if (!subdir)
- die_errno(_("cannot opendir '%s'"), template_path->buf);
- strbuf_addch(path, '/');
- strbuf_addch(template_path, '/');
- copy_templates_1(path, template_path, subdir);
- closedir(subdir);
- }
- else if (exists)
- continue;
- else if (S_ISLNK(st_template.st_mode)) {
- struct strbuf lnk = STRBUF_INIT;
- if (strbuf_readlink(&lnk, template_path->buf,
- st_template.st_size) < 0)
- die_errno(_("cannot readlink '%s'"), template_path->buf);
- if (symlink(lnk.buf, path->buf))
- die_errno(_("cannot symlink '%s' '%s'"),
- lnk.buf, path->buf);
- strbuf_release(&lnk);
- }
- else if (S_ISREG(st_template.st_mode)) {
- if (copy_file(path->buf, template_path->buf, st_template.st_mode))
- die_errno(_("cannot copy '%s' to '%s'"),
- template_path->buf, path->buf);
- }
- else
- error(_("ignoring template %s"), template_path->buf);
- }
-}
-
-static void copy_templates(const char *template_dir, const char *init_template_dir)
-{
- struct strbuf path = STRBUF_INIT;
- struct strbuf template_path = STRBUF_INIT;
- size_t template_len;
- struct repository_format template_format = REPOSITORY_FORMAT_INIT;
- struct strbuf err = STRBUF_INIT;
- DIR *dir;
- char *to_free = NULL;
-
- if (!template_dir)
- template_dir = getenv(TEMPLATE_DIR_ENVIRONMENT);
- if (!template_dir)
- template_dir = init_template_dir;
- if (!template_dir)
- template_dir = to_free = system_path(DEFAULT_GIT_TEMPLATE_DIR);
- if (!template_dir[0]) {
- free(to_free);
- return;
- }
-
- strbuf_addstr(&template_path, template_dir);
- strbuf_complete(&template_path, '/');
- template_len = template_path.len;
-
- dir = opendir(template_path.buf);
- if (!dir) {
- warning(_("templates not found in %s"), template_dir);
- goto free_return;
- }
-
- /* Make sure that template is from the correct vintage */
- strbuf_addstr(&template_path, "config");
- read_repository_format(&template_format, template_path.buf);
- strbuf_setlen(&template_path, template_len);
-
- /*
- * No mention of version at all is OK, but anything else should be
- * verified.
- */
- if (template_format.version >= 0 &&
- verify_repository_format(&template_format, &err) < 0) {
- warning(_("not copying templates from '%s': %s"),
- template_dir, err.buf);
- strbuf_release(&err);
- goto close_free_return;
- }
-
- strbuf_addstr(&path, get_git_common_dir());
- strbuf_complete(&path, '/');
- copy_templates_1(&path, &template_path, dir);
-close_free_return:
- closedir(dir);
-free_return:
- free(to_free);
- strbuf_release(&path);
- strbuf_release(&template_path);
- clear_repository_format(&template_format);
-}
-
-/*
- * If the git_dir is not directly inside the working tree, then git will not
- * find it by default, and we need to set the worktree explicitly.
- */
-static int needs_work_tree_config(const char *git_dir, const char *work_tree)
-{
- if (!strcmp(work_tree, "/") && !strcmp(git_dir, "/.git"))
- return 0;
- if (skip_prefix(git_dir, work_tree, &git_dir) &&
- !strcmp(git_dir, "/.git"))
- return 0;
- return 1;
-}
-
-void initialize_repository_version(int hash_algo, int reinit)
-{
- char repo_version_string[10];
- int repo_version = GIT_REPO_VERSION;
-
- if (hash_algo != GIT_HASH_SHA1)
- repo_version = GIT_REPO_VERSION_READ;
-
- /* This forces creation of new config file */
- xsnprintf(repo_version_string, sizeof(repo_version_string),
- "%d", repo_version);
- git_config_set("core.repositoryformatversion", repo_version_string);
-
- if (hash_algo != GIT_HASH_SHA1)
- git_config_set("extensions.objectformat",
- hash_algos[hash_algo].name);
- else if (reinit)
- git_config_set_gently("extensions.objectformat", NULL);
-}
-
-static int create_default_files(const char *template_path,
- const char *original_git_dir,
- const char *initial_branch,
- const struct repository_format *fmt,
- int quiet)
-{
- struct stat st1;
- struct strbuf buf = STRBUF_INIT;
- char *path;
- char junk[2];
- int reinit;
- int filemode;
- struct strbuf err = STRBUF_INIT;
- const char *init_template_dir = NULL;
- const char *work_tree = get_git_work_tree();
-
- /*
- * First copy the templates -- we might have the default
- * config file there, in which case we would want to read
- * from it after installing.
- *
- * Before reading that config, we also need to clear out any cached
- * values (since we've just potentially changed what's available on
- * disk).
- */
- git_config_get_pathname("init.templatedir", &init_template_dir);
- copy_templates(template_path, init_template_dir);
- free((char *)init_template_dir);
- git_config_clear();
- reset_shared_repository();
- git_config(git_default_config, NULL);
-
- /*
- * We must make sure command-line options continue to override any
- * values we might have just re-read from the config.
- */
- is_bare_repository_cfg = init_is_bare_repository || !work_tree;
- if (init_shared_repository != -1)
- set_shared_repository(init_shared_repository);
-
- /*
- * We would have created the above under user's umask -- under
- * shared-repository settings, we would need to fix them up.
- */
- if (get_shared_repository()) {
- adjust_shared_perm(get_git_dir());
- }
-
- /*
- * We need to create a "refs" dir in any case so that older
- * versions of git can tell that this is a repository.
- */
- safe_create_dir(git_path("refs"), 1);
- adjust_shared_perm(git_path("refs"));
-
- if (refs_init_db(&err))
- die("failed to set up refs db: %s", err.buf);
-
- /*
- * Point the HEAD symref to the initial branch with if HEAD does
- * not yet exist.
- */
- path = git_path_buf(&buf, "HEAD");
- reinit = (!access(path, R_OK)
- || readlink(path, junk, sizeof(junk)-1) != -1);
- if (!reinit) {
- char *ref;
-
- if (!initial_branch)
- initial_branch = git_default_branch_name(quiet);
-
- ref = xstrfmt("refs/heads/%s", initial_branch);
- if (check_refname_format(ref, 0) < 0)
- die(_("invalid initial branch name: '%s'"),
- initial_branch);
-
- if (create_symref("HEAD", ref, NULL) < 0)
- exit(1);
- free(ref);
- }
-
- initialize_repository_version(fmt->hash_algo, 0);
-
- /* Check filemode trustability */
- path = git_path_buf(&buf, "config");
- filemode = TEST_FILEMODE;
- if (TEST_FILEMODE && !lstat(path, &st1)) {
- struct stat st2;
- filemode = (!chmod(path, st1.st_mode ^ S_IXUSR) &&
- !lstat(path, &st2) &&
- st1.st_mode != st2.st_mode &&
- !chmod(path, st1.st_mode));
- if (filemode && !reinit && (st1.st_mode & S_IXUSR))
- filemode = 0;
- }
- git_config_set("core.filemode", filemode ? "true" : "false");
-
- if (is_bare_repository())
- git_config_set("core.bare", "true");
- else {
- git_config_set("core.bare", "false");
- /* allow template config file to override the default */
- if (log_all_ref_updates == LOG_REFS_UNSET)
- git_config_set("core.logallrefupdates", "true");
- if (needs_work_tree_config(original_git_dir, work_tree))
- git_config_set("core.worktree", work_tree);
- }
-
- if (!reinit) {
- /* Check if symlink is supported in the work tree */
- path = git_path_buf(&buf, "tXXXXXX");
- if (!close(xmkstemp(path)) &&
- !unlink(path) &&
- !symlink("testing", path) &&
- !lstat(path, &st1) &&
- S_ISLNK(st1.st_mode))
- unlink(path); /* good */
- else
- git_config_set("core.symlinks", "false");
-
- /* Check if the filesystem is case-insensitive */
- path = git_path_buf(&buf, "CoNfIg");
- if (!access(path, F_OK))
- git_config_set("core.ignorecase", "true");
- probe_utf8_pathname_composition();
- }
-
- strbuf_release(&buf);
- return reinit;
-}
-
-static void create_object_directory(void)
-{
- struct strbuf path = STRBUF_INIT;
- size_t baselen;
-
- strbuf_addstr(&path, get_object_directory());
- baselen = path.len;
-
- safe_create_dir(path.buf, 1);
-
- strbuf_setlen(&path, baselen);
- strbuf_addstr(&path, "/pack");
- safe_create_dir(path.buf, 1);
-
- strbuf_setlen(&path, baselen);
- strbuf_addstr(&path, "/info");
- safe_create_dir(path.buf, 1);
-
- strbuf_release(&path);
-}
-
-static void separate_git_dir(const char *git_dir, const char *git_link)
-{
- struct stat st;
-
- if (!stat(git_link, &st)) {
- const char *src;
-
- if (S_ISREG(st.st_mode))
- src = read_gitfile(git_link);
- else if (S_ISDIR(st.st_mode))
- src = git_link;
- else
- die(_("unable to handle file type %d"), (int)st.st_mode);
-
- if (rename(src, git_dir))
- die_errno(_("unable to move %s to %s"), src, git_dir);
- repair_worktrees(NULL, NULL);
- }
-
- write_file(git_link, "gitdir: %s", git_dir);
-}
-
-static void validate_hash_algorithm(struct repository_format *repo_fmt, int hash)
-{
- const char *env = getenv(GIT_DEFAULT_HASH_ENVIRONMENT);
- /*
- * If we already have an initialized repo, don't allow the user to
- * specify a different algorithm, as that could cause corruption.
- * Otherwise, if the user has specified one on the command line, use it.
- */
- if (repo_fmt->version >= 0 && hash != GIT_HASH_UNKNOWN && hash != repo_fmt->hash_algo)
- die(_("attempt to reinitialize repository with different hash"));
- else if (hash != GIT_HASH_UNKNOWN)
- repo_fmt->hash_algo = hash;
- else if (env) {
- int env_algo = hash_algo_by_name(env);
- if (env_algo == GIT_HASH_UNKNOWN)
- die(_("unknown hash algorithm '%s'"), env);
- repo_fmt->hash_algo = env_algo;
- }
-}
-
-int init_db(const char *git_dir, const char *real_git_dir,
- const char *template_dir, int hash, const char *initial_branch,
- unsigned int flags)
-{
- int reinit;
- int exist_ok = flags & INIT_DB_EXIST_OK;
- char *original_git_dir = real_pathdup(git_dir, 1);
- struct repository_format repo_fmt = REPOSITORY_FORMAT_INIT;
-
- if (real_git_dir) {
- struct stat st;
-
- if (!exist_ok && !stat(git_dir, &st))
- die(_("%s already exists"), git_dir);
-
- if (!exist_ok && !stat(real_git_dir, &st))
- die(_("%s already exists"), real_git_dir);
-
- set_git_dir(real_git_dir, 1);
- git_dir = get_git_dir();
- separate_git_dir(git_dir, original_git_dir);
- }
- else {
- set_git_dir(git_dir, 1);
- git_dir = get_git_dir();
- }
- startup_info->have_repository = 1;
-
- /* Ensure `core.hidedotfiles` is processed */
- git_config(platform_core_config, NULL);
-
- safe_create_dir(git_dir, 0);
-
- init_is_bare_repository = is_bare_repository();
-
- /* Check to see if the repository version is right.
- * Note that a newly created repository does not have
- * config file, so this will not fail. What we are catching
- * is an attempt to reinitialize new repository with an old tool.
- */
- check_repository_format(&repo_fmt);
-
- validate_hash_algorithm(&repo_fmt, hash);
-
- reinit = create_default_files(template_dir, original_git_dir,
- initial_branch, &repo_fmt,
- flags & INIT_DB_QUIET);
- if (reinit && initial_branch)
- warning(_("re-init: ignored --initial-branch=%s"),
- initial_branch);
-
- create_object_directory();
-
- if (get_shared_repository()) {
- char buf[10];
- /* We do not spell "group" and such, so that
- * the configuration can be read by older version
- * of git. Note, we use octal numbers for new share modes,
- * and compatibility values for PERM_GROUP and
- * PERM_EVERYBODY.
- */
- if (get_shared_repository() < 0)
- /* force to the mode value */
- xsnprintf(buf, sizeof(buf), "0%o", -get_shared_repository());
- else if (get_shared_repository() == PERM_GROUP)
- xsnprintf(buf, sizeof(buf), "%d", OLD_PERM_GROUP);
- else if (get_shared_repository() == PERM_EVERYBODY)
- xsnprintf(buf, sizeof(buf), "%d", OLD_PERM_EVERYBODY);
- else
- BUG("invalid value for shared_repository");
- git_config_set("core.sharedrepository", buf);
- git_config_set("receive.denyNonFastforwards", "true");
- }
-
- if (!(flags & INIT_DB_QUIET)) {
- int len = strlen(git_dir);
-
- if (reinit)
- printf(get_shared_repository()
- ? _("Reinitialized existing shared Git repository in %s%s\n")
- : _("Reinitialized existing Git repository in %s%s\n"),
- git_dir, len && git_dir[len-1] != '/' ? "/" : "");
- else
- printf(get_shared_repository()
- ? _("Initialized empty shared Git repository in %s%s\n")
- : _("Initialized empty Git repository in %s%s\n"),
- git_dir, len && git_dir[len-1] != '/' ? "/" : "");
- }
-
- free(original_git_dir);
- return 0;
-}
-
static int guess_repository_type(const char *git_dir)
{
const char *slash;
const char *object_format = NULL;
const char *initial_branch = NULL;
int hash_algo = GIT_HASH_UNKNOWN;
+ int init_shared_repository = -1;
const struct option init_db_options[] = {
OPT_STRING(0, "template", &template_dir, N_("template-directory"),
N_("directory from which templates will be used")),
flags |= INIT_DB_EXIST_OK;
return init_db(git_dir, real_git_dir, template_dir, hash_algo,
- initial_branch, flags);
+ initial_branch, init_shared_repository, flags);
}
projects / thirdparty / git.git / blobdiff