/**
* Add a package to the list of packages to be downloaded
*
* This function checks to see if an identical package is already being downloaded,
* and manages removing duplicates or erroring out on a conflict
* @param \PEAR2\Pyrus\Package $package
*/
static function prepare(PackageInterface $package)
{
$fullPackageName = $package->channel . '/' . $package->name;
if ($package->isPlugin()) {
if (!isset(Main::$options['install-plugins'])) {
// Check the plugin registry so we can provide more info
$command = 'install';
if (Config::current()->pluginregistry->exists($package->name, $package->channel)) {
$command = 'upgrade';
}
Logger::log(0, 'Skipping plugin ' . $fullPackageName . PHP_EOL . 'Plugins modify the installer and cannot be installed at the same time as regular packages.' . PHP_EOL . 'Add the -p option to manage plugins, for example:' . PHP_EOL . ' php pyrus.phar ' . $command . ' -p ' . $fullPackageName);
return;
}
}
if (!isset(static::$installPackages[$fullPackageName])) {
// checking of validity for upgrade is done by \PEAR2\Pyrus\Package\Dependency::retrieve(),
// so all deps that make it this far can be added
if (Config::current()->registry->exists($package->name, $package->channel)) {
if (!$package->isUpgradeable() && !isset(Main::$options['force'])) {
// installed package is the same or newer version than this one
Logger::log(1, 'Skipping installed package ' . $fullPackageName);
return;
}
}
static::$installPackages[$fullPackageName] = $package;
return;
}
$clone = static::$installPackages[$fullPackageName];
if (!$package->isStatic() && $clone->isStatic()) {
// always prefer explicitly versioned over abstract
return;
}
if ($package->isStatic() && !$clone->isStatic()) {
// always prefer explicitly versioned over abstract
static::$installPackages[$fullPackageName] = $package;
return;
}
if (!$package->isStatic() && !$clone->isStatic()) {
// identical, ignore this package
return;
}
// compare version
if ($package->isStatic() && $clone->isStatic() && $package->version['release'] === $clone->version['release']) {
// identical, ignore this package
return;
}
static::rollback();
throw new Installer\Exception('Cannot install ' . $fullPackageName . ', two conflicting' . ' versions were requested (' . $package->version['release'] . ' and ' . $clone->version['release'] . ')');
}
