public function setUp()
{
if (!Libedit::isSupported()) {
$this->markTestSkipped('Libedit not enabled');
}
$this->historyFile = tempnam(sys_get_temp_dir(), 'psysh_test_history');
if (false === file_put_contents($this->historyFile, "_HiStOrY_V2_\n")) {
$this->fail('Unable to write history file: ' . $this->historyFile);
}
// Calling readline_read_history before readline_clear_history
// avoids segfault with PHP 5.5.7 & libedit v3.1
readline_read_history($this->historyFile);
readline_clear_history();
}
/**
* Get the appropriate Readline implementation class name.
*
* @see self::getReadline
*
* @return string
*/
private function getReadlineClass()
{
if ($this->useReadline()) {
if (GNUReadline::isSupported()) {
return 'Psy\\Readline\\GNUReadline';
} elseif (Libedit::isSupported()) {
return 'Psy\\Readline\\Libedit';
}
}
return 'Psy\\Readline\\Transient';
}
/**
* Get the Psy Shell readline service.
*
* By default, this service uses (in order of preference):
*
* * GNU Readline
* * Libedit
* * A transient array-based readline emulation.
*
* @return Readline
*/
public function getReadline()
{
if (!isset($this->readline)) {
if ($this->useReadline()) {
$historyFile = $this->getHistoryFile();
if (GNUReadline::isSupported()) {
$this->readline = new GNUReadline($historyFile);
} elseif (Libedit::isSupported()) {
$this->readline = new Libedit($historyFile);
} elseif (LibeditTransient::isSupported()) {
$this->readline = new LibeditTransient($historyFile);
}
}
if (!isset($this->readline)) {
$this->readline = new Transient();
}
}
return $this->readline;
}