/**
* Verify integrity of the site, automatically taking any actions to restore
* it if broken.
*
* Return values:
* 0 Nothing done (everything is probably OK).
* -1 Error (the error has been logged through trigger_error).
* 1 gitblog cache was updated.
* 2 gitdir is missing and need to be created (git init).
* 3 upgrade performed
*/
static function verify_integrity()
{
$r = 0;
if (!is_dir(gb::$site_dir . '/.git/info/gitblog')) {
if (!is_dir(gb::$site_dir . '/.git')) {
# 2: no repo/not initialized
return 2;
}
# 1: gitblog cache updated
gb_maint::sync_site_state();
GBRebuilder::rebuild(true);
return 1;
}
# load site.json
$r = self::load_site_state();
# check site state
if ($r === false || !isset(gb::$site_state['url']) || !gb::$site_state['url'] || gb::$site_state['url'] !== gb::$site_url && strpos(gb::$site_url, '://localhost') === false && strpos(gb::$site_url, '://127.0.0.1') === false) {
return gb_maint::sync_site_state() === false ? -1 : 0;
} elseif (gb::$site_state['version'] !== gb::$version) {
return gb_maint::upgrade(gb::$site_state['version']) ? 0 : -1;
} elseif (gb::$site_state['posts_pagesize'] !== gb::$posts_pagesize) {
gb_maint::sync_site_state();
GBRebuilder::rebuild(true);
return 1;
}
return 0;
}
