function checkCache()
{
// Check if we hgave cache
if (!file_exists($GLOBALS['tupac_directory'] . '/tupac_data')) {
// If any of the main files is missing, regenerate cache
Std::rm($GLOBALS['tupac_directory'] . '/tupac_data');
Std::rm($GLOBALS['tupac_directory'] . '/tupac_filelist');
sendMessage('generatingCache', array());
// Gather information
$GLOBALS['data'] = new PacmanData();
$GLOBALS['data']->updateList();
} else {
// Read Cache
$GLOBALS['data'] = unserialize(getFileContents($GLOBALS['tupac_directory'] . '/tupac_data'));
if ($GLOBALS['data'] === false) {
// Unserialized failed
sendMessage('generatingCacheCorrupted', array());
Std::rm($GLOBALS['tupac_directory'] . '/tupac_data');
Std::rm($GLOBALS['tupac_directory'] . '/tupac_filelist');
$GLOBALS['data'] = new PacmanData();
$GLOBALS['data']->updateList();
} else {
switch ($GLOBALS['data']->verifyIntegrity()) {
case 'cache_updated':
sendMessage('generatingCacheTupacUpdated', array());
Std::rm($GLOBALS['tupac_directory'] . '/tupac_data');
Std::rm($GLOBALS['tupac_directory'] . '/tupac_filelist');
$GLOBALS['data'] = new PacmanData();
$GLOBALS['data']->updateList();
break;
case 'database_outdated':
//sendMessage('generatingCacheDatabaseUpdated',array());
$anyChanges = false;
// Get currently available repos
$available_repos = array();
$dh = getRepoDirList();
foreach ($dh as $repo) {
if (!substr($repo, 0, 1) == '.' && is_dir(getRepoDir($repo))) {
$available_repos[$repo] = false;
}
}
// The database needs to be updated
$mustRecheckLocal = false;
$repo_list = $GLOBALS['data']->repo_list;
foreach ($repo_list as $repo => $repoData) {
unset($available_repos[$repo]);
if ($repo == 'local' && $GLOBALS['data']->verification[$repo] != PacmanData::verifyRepo($repo)) {
// We check local separately, since it is not a repo.
sendMessage('repoIsUpdated', array('%r' => $repo));
$anyChanges = true;
$installed = true;
$available_packages = array();
// get current packages
$dh = opendir(getRepoDir($repo));
while (FALSE !== ($package = readdir($dh))) {
if (substr($package, 0, 1) != '.' && is_dir(getRepoDir($repo) . $package)) {
$packageName = preg_replace('/\\-[0-9a-z\\._A-Z]*\\-[0-9a-z\\._A-Z]*$/', '', $package);
$available_packages[$packageName] = $package;
}
}
closedir($dh);
$installed_packages = $GLOBALS['data']->installed_packages;
// Walk packages of the current repo
foreach ($installed_packages as $packageName => $packageData) {
if (!$available_packages[$packageName]) {
// The package is not installed anymore
sendMessage('removePackage', array('%p' => $packageName));
unset($repo_list['local'][$packageName]);
foreach ($repo_list as $tmpRepo => $tmpRepoData) {
if ($tmpRepoData[$packageName]) {
$repo_list[$tmpRepo][$packageName]['installed'] = 'false';
}
}
unset($installed_packages[$packageName]);
} elseif ($packageData['dir'] != $available_packages[$packageName]) {
// Package updated. Since it is the list of installed packages, set its version to installed version
sendMessage('updatePackage', array('%p' => $packageName));
$installed_packages[$packageName] = PacmanData::getPackageData($repo, $available_packages[$packageName], 'true');
$installed_info = $installed_packages[$packageName]['version'];
$installed_packages[$packageName]['installed'] = $installed_info;
foreach ($repo_list as $tmpRepo => $tmpRepoData) {
if ($tmpRepoData[$packageName]) {
$repo_list[$tmpRepo][$packageName]['installed'] = $installed_info;
// in local installed version equals to avaiable version
if ($repo == 'local') {
$repo_list[$tmpRepo][$packageName]['version'] = $installed_info;
}
}
}
}
unset($available_packages[$packageName]);
}
// Add new packages. This is, packages that are listed in the repo directory but that aren't marked as installed.
foreach ($available_packages as $packageName => $package) {
if ($package) {
$packageFound = false;
sendMessage('addPackage', array('%p' => $packageName));
$installed_packages[$packageName] = PacmanData::getPackageData($repo, $available_packages[$packageName], 'true');
$installed_info = $installed_packages[$packageName]['version'];
$installed_packages[$packageName]['installed'] = $installed_info;
foreach ($repo_list as $tmpRepo => $tmpRepoData) {
if ($tmpRepo != 'local' && $tmpRepoData[$packageName]) {
$repo_list[$tmpRepo][$packageName]['installed'] = $installed_info;
$packageFound = true;
}
}
// It wasn't in any repo. Let's add it to the pseudorepo local
if (!$packageFound) {
$repo_list['local'][$packageName] = $installed_packages[$packageName];
}
}
}
$GLOBALS['data']->installed_packages = $installed_packages;
$GLOBALS['data']->verification[$repo] = PacmanData::verifyRepo($repo);
continue;
}
if (!is_dir(getRepoDir($repo))) {
sendMessage('repoIsGone', array('%r' => $repo));
unset($repo_list[$repo]);
foreach ($repoData as $packageName => $packageData) {
if ($GLOBALS['data']->installed_packages[$packageName]) {
$packageFound = false;
foreach ($repo_list as $tmpRepo => $tmpRepoData) {
if ($tmpRepo != 'local' && $tmpRepoData[$packageName]) {
$packageFound = true;
break;
}
}
if (!$packageFound) {
$repo_list['local'][$packageName] = $packageData;
}
}
}
$anyChanges = true;
} else {
if ($GLOBALS['data']->verification[$repo] != PacmanData::verifyRepo($repo)) {
sendMessage('repoIsUpdated', array('%r' => $repo));
$anyChanges = true;
$available_packages = array();
// get current packages
$dh = opendir(getRepoDir($repo));
while (FALSE !== ($package = readdir($dh))) {
if (substr($package, 0, 1) != '.' && is_dir(getRepoDir($repo) . $package)) {
$packageName = preg_replace('/\\-[0-9a-z\\._A-Z]*\\-[0-9a-z\\._A-Z]*$/', '', $package);
$available_packages[$packageName] = $package;
}
}
closedir($dh);
// Walk packages of the current repo
foreach ($repoData as $packageName => $packageData) {
if (!$available_packages[$packageName]) {
// The package doesn't exist anymore in the directory of the repo
sendMessage('removePackage', array('%p' => $packageName));
if ($packageData['installed'] != 'false') {
// since it is installed, we have to move it to the pseudorepo local
$repo_list['local'][$packageName] = $repo_list[$repo][$packageName];
$packageFound = false;
foreach ($repo_list as $tmpRepo => $tmpRepoData) {
if ($tmpRepo != 'local' && $tmpRepoData[$packageName]) {
$packageFound = true;
}
}
if (!$packageFound) {
$repo_list['local'][$packageName] = $packageData;
}
}
unset($repo_list[$repo][$packageName]);
} elseif ($packageData['dir'] != $available_packages[$packageName]) {
// Package updated
sendMessage('updatePackage', array('%p' => $packageName));
$installed_info = $packageData['installed'];
$repo_list[$repo][$packageName] = PacmanData::getPackageData($repo, $available_packages[$packageName], $installed_info);
}
unset($available_packages[$packageName]);
}
// Add new packages. This is, packages that are listed in the repo directory but that aren't available in the repo.
foreach ($available_packages as $packageName => $package) {
if ($package) {
sendMessage('addPackage', array('%p' => $packageName));
$repo_list[$repo][$packageName] = PacmanData::getPackageData($repo, $package, $installed);
// Add install information
if ($repo_list['local'][$packageName]) {
$GLOBALS['data']->installed_packages[$packageName] = $repo_list['local'][$packageName];
}
if ($GLOBALS['data']->installed_packages[$packageName]) {
unset($repo_list['local'][$packageName]);
$repo_list[$repo][$packageName]['installed'] = $GLOBALS['data']->installed_packages[$packageName]['version'];
// remove it from the pseudo repo local
if ($repo_list['local'][$packageName]) {
unset($repo_list['local'][$packageName]);
}
} else {
$repo_list[$repo][$packageName]['installed'] = 'false';
}
}
}
$GLOBALS['data']->verification[$repo] = PacmanData::verifyRepo($repo);
}
}
}
$GLOBALS['data']->repo_list = $repo_list;
foreach ($available_repos as $repo => $dummy) {
sendMessage('repoIsNew', array('%r' => $repo));
$GLOBALS['data']->getRepoData($repo);
$mustRecheckLocal = true;
}
if ($mustRecheckLocal) {
$anyChanges = true;
sendMessage('recheckingLocal', array());
// we copy installed packages to pseudorepo local
$GLOBALS['data']->repo_list['local'] = array_merge($GLOBALS['data']->installed_packages, $GLOBALS['data']->repo_list['local']);
$GLOBALS['data']->recheckLocal();
}
if ($anyChanges) {
sendMessage('saving', array());
$GLOBALS['data']->saveData();
}
break;
default:
// We never get here
//sendMessage('reusingCache',array());
break;
}
}
}
}