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-rw-r--r--builtin/init-db.c348
1 files changed, 161 insertions, 187 deletions
diff --git a/builtin/init-db.c b/builtin/init-db.c
index 4335738135..2399b97d90 100644
--- a/builtin/init-db.c
+++ b/builtin/init-db.c
@@ -4,6 +4,7 @@
* Copyright (C) Linus Torvalds, 2005
*/
#include "cache.h"
+#include "refs.h"
#include "builtin.h"
#include "exec_cmd.h"
#include "parse-options.h"
@@ -21,24 +22,12 @@
static int init_is_bare_repository = 0;
static int init_shared_repository = -1;
static const char *init_db_template_dir;
-static const char *git_link;
-static void safe_create_dir(const char *dir, int share)
-{
- if (mkdir(dir, 0777) < 0) {
- if (errno != EEXIST) {
- perror(dir);
- exit(1);
- }
- }
- else if (share && adjust_shared_perm(dir))
- die(_("Could not make %s writable by group"), dir);
-}
-
-static void copy_templates_1(char *path, int baselen,
- char *template, int template_baselen,
+static void copy_templates_1(struct strbuf *path, struct strbuf *template,
DIR *dir)
{
+ size_t path_baselen = path->len;
+ size_t template_baselen = template->len;
struct dirent *de;
/* Note: if ".git/hooks" file exists in the repository being
@@ -48,77 +37,66 @@ static void copy_templates_1(char *path, int baselen,
* with the way the namespace under .git/ is organized, should
* be really carefully chosen.
*/
- safe_create_dir(path, 1);
+ safe_create_dir(path->buf, 1);
while ((de = readdir(dir)) != NULL) {
struct stat st_git, st_template;
- int namelen;
int exists = 0;
+ strbuf_setlen(path, path_baselen);
+ strbuf_setlen(template, template_baselen);
+
if (de->d_name[0] == '.')
continue;
- namelen = strlen(de->d_name);
- if ((PATH_MAX <= baselen + namelen) ||
- (PATH_MAX <= template_baselen + namelen))
- die(_("insanely long template name %s"), de->d_name);
- memcpy(path + baselen, de->d_name, namelen+1);
- memcpy(template + template_baselen, de->d_name, namelen+1);
- if (lstat(path, &st_git)) {
+ strbuf_addstr(path, de->d_name);
+ strbuf_addstr(template, de->d_name);
+ if (lstat(path->buf, &st_git)) {
if (errno != ENOENT)
- die_errno(_("cannot stat '%s'"), path);
+ die_errno(_("cannot stat '%s'"), path->buf);
}
else
exists = 1;
- if (lstat(template, &st_template))
- die_errno(_("cannot stat template '%s'"), template);
+ if (lstat(template->buf, &st_template))
+ die_errno(_("cannot stat template '%s'"), template->buf);
if (S_ISDIR(st_template.st_mode)) {
- DIR *subdir = opendir(template);
- int baselen_sub = baselen + namelen;
- int template_baselen_sub = template_baselen + namelen;
+ DIR *subdir = opendir(template->buf);
if (!subdir)
- die_errno(_("cannot opendir '%s'"), template);
- path[baselen_sub++] =
- template[template_baselen_sub++] = '/';
- path[baselen_sub] =
- template[template_baselen_sub] = 0;
- copy_templates_1(path, baselen_sub,
- template, template_baselen_sub,
- subdir);
+ die_errno(_("cannot opendir '%s'"), template->buf);
+ strbuf_addch(path, '/');
+ strbuf_addch(template, '/');
+ copy_templates_1(path, template, subdir);
closedir(subdir);
}
else if (exists)
continue;
else if (S_ISLNK(st_template.st_mode)) {
- char lnk[256];
- int len;
- len = readlink(template, lnk, sizeof(lnk));
- if (len < 0)
- die_errno(_("cannot readlink '%s'"), template);
- if (sizeof(lnk) <= len)
- die(_("insanely long symlink %s"), template);
- lnk[len] = 0;
- if (symlink(lnk, path))
- die_errno(_("cannot symlink '%s' '%s'"), lnk, path);
+ struct strbuf lnk = STRBUF_INIT;
+ if (strbuf_readlink(&lnk, template->buf, 0) < 0)
+ die_errno(_("cannot readlink '%s'"), template->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, template, st_template.st_mode))
- die_errno(_("cannot copy '%s' to '%s'"), template,
- path);
+ if (copy_file(path->buf, template->buf, st_template.st_mode))
+ die_errno(_("cannot copy '%s' to '%s'"),
+ template->buf, path->buf);
}
else
- error(_("ignoring template %s"), template);
+ error(_("ignoring template %s"), template->buf);
}
}
static void copy_templates(const char *template_dir)
{
- char path[PATH_MAX];
- char template_path[PATH_MAX];
- int template_len;
+ struct strbuf path = STRBUF_INIT;
+ struct strbuf template_path = STRBUF_INIT;
+ size_t template_len;
+ struct repository_format template_format;
+ struct strbuf err = STRBUF_INIT;
DIR *dir;
- const char *git_dir = get_git_dir();
- int len = strlen(git_dir);
char *to_free = NULL;
if (!template_dir)
@@ -131,47 +109,43 @@ static void copy_templates(const char *template_dir)
free(to_free);
return;
}
- template_len = strlen(template_dir);
- if (PATH_MAX <= (template_len+strlen("/config")))
- die(_("insanely long template path %s"), template_dir);
- strcpy(template_path, template_dir);
- if (template_path[template_len-1] != '/') {
- template_path[template_len++] = '/';
- template_path[template_len] = 0;
- }
- dir = opendir(template_path);
+
+ 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 %s"), template_dir);
goto free_return;
}
/* Make sure that template is from the correct vintage */
- strcpy(template_path + template_len, "config");
- repository_format_version = 0;
- git_config_from_file(check_repository_format_version,
- template_path, NULL);
- template_path[template_len] = 0;
-
- if (repository_format_version &&
- repository_format_version != GIT_REPO_VERSION) {
- warning(_("not copying templates of "
- "a wrong format version %d from '%s'"),
- repository_format_version,
- template_dir);
+ 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;
}
- memcpy(path, git_dir, len);
- if (len && path[len - 1] != '/')
- path[len++] = '/';
- path[len] = 0;
- copy_templates_1(path, len,
- template_path, template_len,
- dir);
+ 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);
}
static int git_init_db_config(const char *k, const char *v, void *cb)
@@ -196,63 +170,66 @@ static int needs_work_tree_config(const char *git_dir, const char *work_tree)
return 1;
}
-static int create_default_files(const char *template_path)
+static int create_default_files(const char *template_path,
+ const char *original_git_dir)
{
- const char *git_dir = get_git_dir();
- unsigned len = strlen(git_dir);
- static char path[PATH_MAX];
struct stat st1;
+ struct strbuf buf = STRBUF_INIT;
+ char *path;
char repo_version_string[10];
char junk[2];
int reinit;
int filemode;
-
- if (len > sizeof(path)-50)
- die(_("insane git directory %s"), git_dir);
- memcpy(path, git_dir, len);
-
- if (len && path[len-1] != '/')
- path[len++] = '/';
-
- /*
- * Create .git/refs/{heads,tags}
- */
- safe_create_dir(git_path("refs"), 1);
- safe_create_dir(git_path("refs/heads"), 1);
- safe_create_dir(git_path("refs/tags"), 1);
+ struct strbuf err = STRBUF_INIT;
/* Just look for `init.templatedir` */
git_config(git_init_db_config, NULL);
- /* First copy the templates -- we might have the default
+ /*
+ * 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).
*/
copy_templates(template_path);
-
+ git_config_clear();
+ reset_shared_repository();
git_config(git_default_config, NULL);
- is_bare_repository_cfg = init_is_bare_repository;
- /* reading existing config may have overwrote it */
+ /*
+ * 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;
if (init_shared_repository != -1)
- shared_repository = init_shared_repository;
+ 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 (shared_repository) {
+ if (get_shared_repository()) {
adjust_shared_perm(get_git_dir());
- adjust_shared_perm(git_path("refs"));
- adjust_shared_perm(git_path("refs/heads"));
- adjust_shared_perm(git_path("refs/tags"));
}
/*
+ * 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);
+
+ /*
* Create the default symlink from ".git/HEAD" to the "master"
* branch, if it does not exist yet.
*/
- strcpy(path + len, "HEAD");
+ path = git_path_buf(&buf, "HEAD");
reinit = (!access(path, R_OK)
|| readlink(path, junk, sizeof(junk)-1) != -1);
if (!reinit) {
@@ -261,13 +238,12 @@ static int create_default_files(const char *template_path)
}
/* This forces creation of new config file */
- sprintf(repo_version_string, "%d", GIT_REPO_VERSION);
+ xsnprintf(repo_version_string, sizeof(repo_version_string),
+ "%d", GIT_REPO_VERSION);
git_config_set("core.repositoryformatversion", repo_version_string);
- path[len] = 0;
- strcpy(path + len, "config");
-
/* Check filemode trustability */
+ path = git_path_buf(&buf, "config");
filemode = TEST_FILEMODE;
if (TEST_FILEMODE && !lstat(path, &st1)) {
struct stat st2;
@@ -287,15 +263,14 @@ static int create_default_files(const char *template_path)
git_config_set("core.bare", "false");
/* allow template config file to override the default */
if (log_all_ref_updates == -1)
- git_config_set("core.logallrefupdates", "true");
- if (needs_work_tree_config(git_dir, work_tree))
+ 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[len] = 0;
- strcpy(path + len, "tXXXXXX");
+ path = git_path_buf(&buf, "tXXXXXX");
if (!close(xmkstemp(path)) &&
!unlink(path) &&
!symlink("testing", path) &&
@@ -306,60 +281,38 @@ static int create_default_files(const char *template_path)
git_config_set("core.symlinks", "false");
/* Check if the filesystem is case-insensitive */
- path[len] = 0;
- strcpy(path + len, "CoNfIg");
+ path = git_path_buf(&buf, "CoNfIg");
if (!access(path, F_OK))
git_config_set("core.ignorecase", "true");
- probe_utf8_pathname_composition(path, len);
+ probe_utf8_pathname_composition();
}
+ strbuf_release(&buf);
return reinit;
}
static void create_object_directory(void)
{
- const char *object_directory = get_object_directory();
- int len = strlen(object_directory);
- char *path = xmalloc(len + 40);
-
- memcpy(path, object_directory, len);
+ struct strbuf path = STRBUF_INIT;
+ size_t baselen;
- safe_create_dir(object_directory, 1);
- strcpy(path+len, "/pack");
- safe_create_dir(path, 1);
- strcpy(path+len, "/info");
- safe_create_dir(path, 1);
+ strbuf_addstr(&path, get_object_directory());
+ baselen = path.len;
- free(path);
-}
-
-int set_git_dir_init(const char *git_dir, const char *real_git_dir,
- int exist_ok)
-{
- if (real_git_dir) {
- struct stat st;
+ safe_create_dir(path.buf, 1);
- if (!exist_ok && !stat(git_dir, &st))
- die(_("%s already exists"), git_dir);
+ strbuf_setlen(&path, baselen);
+ strbuf_addstr(&path, "/pack");
+ safe_create_dir(path.buf, 1);
- if (!exist_ok && !stat(real_git_dir, &st))
- die(_("%s already exists"), real_git_dir);
+ strbuf_setlen(&path, baselen);
+ strbuf_addstr(&path, "/info");
+ safe_create_dir(path.buf, 1);
- /*
- * make sure symlinks are resolved because we'll be
- * moving the target repo later on in separate_git_dir()
- */
- git_link = xstrdup(real_path(git_dir));
- set_git_dir(real_path(real_git_dir));
- }
- else {
- set_git_dir(real_path(git_dir));
- git_link = NULL;
- }
- return 0;
+ strbuf_release(&path);
}
-static void separate_git_dir(const char *git_dir)
+static void separate_git_dir(const char *git_dir, const char *git_link)
{
struct stat st;
@@ -377,16 +330,34 @@ static void separate_git_dir(const char *git_dir)
die_errno(_("unable to move %s to %s"), src, git_dir);
}
- write_file(git_link, 1, "gitdir: %s\n", git_dir);
+ write_file(git_link, "gitdir: %s", git_dir);
}
-int init_db(const char *template_dir, unsigned int flags)
+int init_db(const char *git_dir, const char *real_git_dir,
+ const char *template_dir, unsigned int flags)
{
int reinit;
- const char *git_dir = get_git_dir();
+ int exist_ok = flags & INIT_DB_EXIST_OK;
+ char *original_git_dir = xstrdup(real_path(git_dir));
- if (git_link)
- separate_git_dir(git_dir);
+ 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_path(real_git_dir));
+ git_dir = get_git_dir();
+ separate_git_dir(git_dir, original_git_dir);
+ }
+ else {
+ set_git_dir(real_path(git_dir));
+ git_dir = get_git_dir();
+ }
+ startup_info->have_repository = 1;
safe_create_dir(git_dir, 0);
@@ -399,11 +370,11 @@ int init_db(const char *template_dir, unsigned int flags)
*/
check_repository_format();
- reinit = create_default_files(template_dir);
+ reinit = create_default_files(template_dir, original_git_dir);
create_object_directory();
- if (shared_repository) {
+ if (get_shared_repository()) {
char buf[10];
/* We do not spell "group" and such, so that
* the configuration can be read by older version
@@ -411,15 +382,15 @@ int init_db(const char *template_dir, unsigned int flags)
* and compatibility values for PERM_GROUP and
* PERM_EVERYBODY.
*/
- if (shared_repository < 0)
+ if (get_shared_repository() < 0)
/* force to the mode value */
- sprintf(buf, "0%o", -shared_repository);
- else if (shared_repository == PERM_GROUP)
- sprintf(buf, "%d", OLD_PERM_GROUP);
- else if (shared_repository == PERM_EVERYBODY)
- sprintf(buf, "%d", OLD_PERM_EVERYBODY);
+ 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
- die("oops");
+ die("BUG: invalid value for shared_repository");
git_config_set("core.sharedrepository", buf);
git_config_set("receive.denyNonFastforwards", "true");
}
@@ -427,15 +398,19 @@ int init_db(const char *template_dir, unsigned int flags)
if (!(flags & INIT_DB_QUIET)) {
int len = strlen(git_dir);
- /* TRANSLATORS: The first '%s' is either "Reinitialized
- existing" or "Initialized empty", the second " shared" or
- "", and the last '%s%s' is the verbatim directory name. */
- printf(_("%s%s Git repository in %s%s\n"),
- reinit ? _("Reinitialized existing") : _("Initialized empty"),
- shared_repository ? _(" shared") : "",
- git_dir, len && git_dir[len-1] != '/' ? "/" : "");
+ 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;
}
@@ -527,8 +502,8 @@ int cmd_init_db(int argc, const char **argv, const char *prefix)
* and we know shared_repository should always be 0;
* but just in case we play safe.
*/
- saved = shared_repository;
- shared_repository = 0;
+ saved = get_shared_repository();
+ set_shared_repository(0);
switch (safe_create_leading_directories_const(argv[0])) {
case SCLD_OK:
case SCLD_PERMS:
@@ -540,7 +515,7 @@ int cmd_init_db(int argc, const char **argv, const char *prefix)
die_errno(_("cannot mkdir %s"), argv[0]);
break;
}
- shared_repository = saved;
+ set_shared_repository(saved);
if (mkdir(argv[0], 0777) < 0)
die_errno(_("cannot mkdir %s"), argv[0]);
mkdir_tried = 1;
@@ -558,7 +533,7 @@ int cmd_init_db(int argc, const char **argv, const char *prefix)
}
if (init_shared_repository != -1)
- shared_repository = init_shared_repository;
+ set_shared_repository(init_shared_repository);
/*
* GIT_WORK_TREE makes sense only in conjunction with GIT_DIR
@@ -603,7 +578,6 @@ int cmd_init_db(int argc, const char **argv, const char *prefix)
set_git_work_tree(work_tree);
}
- set_git_dir_init(git_dir, real_git_dir, 1);
-
- return init_db(template_dir, flags);
+ flags |= INIT_DB_EXIST_OK;
+ return init_db(git_dir, real_git_dir, template_dir, flags);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-14 23:51:05 +0000