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<?php
/*
* This file is part of Psy Shell.
*
* (c) 2012-2022 Justin Hileman
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Psy;
use Psy\ExecutionLoop\ProcessForker;
use Psy\VersionUpdater\GitHubChecker;
use Symfony\Component\Console\Input\ArgvInput;
use Symfony\Component\Console\Input\InputArgument;
use Symfony\Component\Console\Input\InputDefinition;
use Symfony\Component\Console\Input\InputOption;
if (!\function_exists('Psy\\sh')) {
/**
* Command to return the eval-able code to startup PsySH.
*
* eval(\Psy\sh());
*
* @return string
*/
function sh(): string
{
if (\version_compare(\PHP_VERSION, '8.0', '<')) {
return '\extract(\Psy\debug(\get_defined_vars(), isset($this) ? $this : @\get_called_class()));';
}
return <<<'EOS'
if (isset($this)) {
\extract(\Psy\debug(\get_defined_vars(), $this));
} else {
try {
static::class;
\extract(\Psy\debug(\get_defined_vars(), static::class));
} catch (\Error $e) {
\extract(\Psy\debug(\get_defined_vars()));
}
}
EOS;
}
}
if (!\function_exists('Psy\\debug')) {
/**
* Invoke a Psy Shell from the current context.
*
* For example:
*
* foreach ($items as $item) {
* \Psy\debug(get_defined_vars());
* }
*
* If you would like your shell interaction to affect the state of the
* current context, you can extract() the values returned from this call:
*
* foreach ($items as $item) {
* extract(\Psy\debug(get_defined_vars()));
* var_dump($item); // will be whatever you set $item to in Psy Shell
* }
*
* Optionally, supply an object as the `$bindTo` parameter. This determines
* the value `$this` will have in the shell, and sets up class scope so that
* private and protected members are accessible:
*
* class Foo {
* function bar() {
* \Psy\debug(get_defined_vars(), $this);
* }
* }
*
* For the static equivalent, pass a class name as the `$bindTo` parameter.
* This makes `self` work in the shell, and sets up static scope so that
* private and protected static members are accessible:
*
* class Foo {
* static function bar() {
* \Psy\debug(get_defined_vars(), get_called_class());
* }
* }
*
* @param array $vars Scope variables from the calling context (default: [])
* @param object|string $bindTo Bound object ($this) or class (self) value for the shell
*
* @return array Scope variables from the debugger session
*/
function debug(array $vars = [], $bindTo = null): array
{
echo \PHP_EOL;
$sh = new Shell();
$sh->setScopeVariables($vars);
// Show a couple of lines of call context for the debug session.
//
// @todo come up with a better way of doing this which doesn't involve injecting input :-P
if ($sh->has('whereami')) {
$sh->addInput('whereami -n2', true);
}
if (\is_string($bindTo)) {
$sh->setBoundClass($bindTo);
} elseif ($bindTo !== null) {
$sh->setBoundObject($bindTo);
}
$sh->run();
return $sh->getScopeVariables(false);
}
}
if (!\function_exists('Psy\\info')) {
/**
* Get a bunch of debugging info about the current PsySH environment and
* configuration.
*
* If a Configuration param is passed, that configuration is stored and
* used for the current shell session, and no debugging info is returned.
*
* @param Configuration|null $config
*
* @return array|null
*/
function info(Configuration $config = null)
{
static $lastConfig;
if ($config !== null) {
$lastConfig = $config;
return;
}
$prettyPath = function ($path) {
return $path;
};
$homeDir = (new ConfigPaths())->homeDir();
if ($homeDir && $homeDir = \rtrim($homeDir, '/')) {
$homePattern = '#^'.\preg_quote($homeDir, '#').'/#';
$prettyPath = function ($path) use ($homePattern) {
if (\is_string($path)) {
return \preg_replace($homePattern, '~/', $path);
} else {
return $path;
}
};
}
$config = $lastConfig ?: new Configuration();
$configEnv = (isset($_SERVER['PSYSH_CONFIG']) && $_SERVER['PSYSH_CONFIG']) ? $_SERVER['PSYSH_CONFIG'] : false;
$shellInfo = [
'PsySH version' => Shell::VERSION,
];
$core = [
'PHP version' => \PHP_VERSION,
'OS' => \PHP_OS,
'default includes' => $config->getDefaultIncludes(),
'require semicolons' => $config->requireSemicolons(),
'error logging level' => $config->errorLoggingLevel(),
'config file' => [
'default config file' => $prettyPath($config->getConfigFile()),
'local config file' => $prettyPath($config->getLocalConfigFile()),
'PSYSH_CONFIG env' => $prettyPath($configEnv),
],
// 'config dir' => $config->getConfigDir(),
// 'data dir' => $config->getDataDir(),
// 'runtime dir' => $config->getRuntimeDir(),
];
// Use an explicit, fresh update check here, rather than relying on whatever is in $config.
$checker = new GitHubChecker();
$updateAvailable = null;
$latest = null;
try {
$updateAvailable = !$checker->isLatest();
$latest = $checker->getLatest();
} catch (\Throwable $e) {
}
$updates = [
'update available' => $updateAvailable,
'latest release version' => $latest,
'update check interval' => $config->getUpdateCheck(),
'update cache file' => $prettyPath($config->getUpdateCheckCacheFile()),
];
$input = [
'interactive mode' => $config->interactiveMode(),
'input interactive' => $config->getInputInteractive(),
'yolo' => $config->yolo(),
];
if ($config->hasReadline()) {
$info = \readline_info();
$readline = [
'readline available' => true,
'readline enabled' => $config->useReadline(),
'readline service' => \get_class($config->getReadline()),
];
if (isset($info['library_version'])) {
$readline['readline library'] = $info['library_version'];
}
if (isset($info['readline_name']) && $info['readline_name'] !== '') {
$readline['readline name'] = $info['readline_name'];
}
} else {
$readline = [
'readline available' => false,
];
}
$output = [
'color mode' => $config->colorMode(),
'output decorated' => $config->getOutputDecorated(),
'output verbosity' => $config->verbosity(),
];
$pcntl = [
'pcntl available' => ProcessForker::isPcntlSupported(),
'posix available' => ProcessForker::isPosixSupported(),
];
if ($disabledPcntl = ProcessForker::disabledPcntlFunctions()) {
$pcntl['disabled pcntl functions'] = $disabledPcntl;
}
if ($disabledPosix = ProcessForker::disabledPosixFunctions()) {
$pcntl['disabled posix functions'] = $disabledPosix;
}
$pcntl['use pcntl'] = $config->usePcntl();
$history = [
'history file' => $prettyPath($config->getHistoryFile()),
'history size' => $config->getHistorySize(),
'erase duplicates' => $config->getEraseDuplicates(),
];
$docs = [
'manual db file' => $prettyPath($config->getManualDbFile()),
'sqlite available' => true,
];
try {
if ($db = $config->getManualDb()) {
if ($q = $db->query('SELECT * FROM meta;')) {
$q->setFetchMode(\PDO::FETCH_KEY_PAIR);
$meta = $q->fetchAll();
foreach ($meta as $key => $val) {
switch ($key) {
case 'built_at':
$d = new \DateTime('@'.$val);
$val = $d->format(\DateTime::RFC2822);
break;
}
$key = 'db '.\str_replace('_', ' ', $key);
$docs[$key] = $val;
}
} else {
$docs['db schema'] = '0.1.0';
}
}
} catch (Exception\RuntimeException $e) {
if ($e->getMessage() === 'SQLite PDO driver not found') {
$docs['sqlite available'] = false;
} else {
throw $e;
}
}
$autocomplete = [
'tab completion enabled' => $config->useTabCompletion(),
'bracketed paste' => $config->useBracketedPaste(),
];
// Shenanigans, but totally justified.
try {
if ($shell = Sudo::fetchProperty($config, 'shell')) {
$shellClass = \get_class($shell);
if ($shellClass !== 'Psy\\Shell') {
$shellInfo = [
'PsySH version' => $shell::VERSION,
'Shell class' => $shellClass,
];
}
try {
$core['loop listeners'] = \array_map('get_class', Sudo::fetchProperty($shell, 'loopListeners'));
} catch (\ReflectionException $e) {
// shrug
}
$core['commands'] = \array_map('get_class', $shell->all());
try {
$autocomplete['custom matchers'] = \array_map('get_class', Sudo::fetchProperty($shell, 'matchers'));
} catch (\ReflectionException $e) {
// shrug
}
}
} catch (\ReflectionException $e) {
// shrug
}
// @todo Show Presenter / custom casters.
return \array_merge($shellInfo, $core, \compact('updates', 'pcntl', 'input', 'readline', 'output', 'history', 'docs', 'autocomplete'));
}
}
if (!\function_exists('Psy\\bin')) {
/**
* `psysh` command line executable.
*
* @return \Closure
*/
function bin(): \Closure
{
return function () {
if (!isset($_SERVER['PSYSH_IGNORE_ENV']) || !$_SERVER['PSYSH_IGNORE_ENV']) {
if (\defined('HHVM_VERSION_ID')) {
\fwrite(\STDERR, 'PsySH v0.11 and higher does not support HHVM. Install an older version, or set the environment variable PSYSH_IGNORE_ENV=1 to override this restriction and proceed anyway.'.\PHP_EOL);
exit(1);
}
if (\PHP_VERSION_ID < 70000) {
\fwrite(\STDERR, 'PHP 7.0.0 or higher is required. You can set the environment variable PSYSH_IGNORE_ENV=1 to override this restriction and proceed anyway.'.\PHP_EOL);
exit(1);
}
if (\PHP_VERSION_ID > 89999) {
\fwrite(\STDERR, 'PHP 9 or higher is not supported. You can set the environment variable PSYSH_IGNORE_ENV=1 to override this restriction and proceed anyway.'.\PHP_EOL);
exit(1);
}
if (!\function_exists('json_encode')) {
\fwrite(\STDERR, 'The JSON extension is required. Please install it. You can set the environment variable PSYSH_IGNORE_ENV=1 to override this restriction and proceed anyway.'.\PHP_EOL);
exit(1);
}
if (!\function_exists('token_get_all')) {
\fwrite(\STDERR, 'The Tokenizer extension is required. Please install it. You can set the environment variable PSYSH_IGNORE_ENV=1 to override this restriction and proceed anyway.'.\PHP_EOL);
exit(1);
}
}
$usageException = null;
$input = new ArgvInput();
try {
$input->bind(new InputDefinition(\array_merge(Configuration::getInputOptions(), [
new InputOption('help', 'h', InputOption::VALUE_NONE),
new InputOption('version', 'V', InputOption::VALUE_NONE),
new InputArgument('include', InputArgument::IS_ARRAY),
])));
} catch (\RuntimeException $e) {
$usageException = $e;
}
try {
$config = Configuration::fromInput($input);
} catch (\InvalidArgumentException $e) {
$usageException = $e;
}
// Handle --help
if ($usageException !== null || $input->getOption('help')) {
if ($usageException !== null) {
echo $usageException->getMessage().\PHP_EOL.\PHP_EOL;
}
$version = Shell::getVersionHeader(false);
$argv = isset($_SERVER['argv']) ? $_SERVER['argv'] : [];
$name = $argv ? \basename(\reset($argv)) : 'psysh';
echo <<<EOL
$version
Usage:
$name [--version] [--help] [files...]
Options:
-h, --help Display this help message.
-c, --config FILE Use an alternate PsySH config file location.
--cwd PATH Use an alternate working directory.
-V, --version Display the PsySH version.
--color Force colors in output.
--no-color Disable colors in output.
-i, --interactive Force PsySH to run in interactive mode.
-n, --no-interactive Run PsySH without interactive input. Requires input from stdin.
-r, --raw-output Print var_export-style return values (for non-interactive input)
-q, --quiet Shhhhhh.
-v|vv|vvv, --verbose Increase the verbosity of messages.
--yolo Run PsySH without input validation. You don't want this.
EOL;
exit($usageException === null ? 0 : 1);
}
// Handle --version
if ($input->getOption('version')) {
echo Shell::getVersionHeader($config->useUnicode()).\PHP_EOL;
exit(0);
}
$shell = new Shell($config);
// Pass additional arguments to Shell as 'includes'
$shell->setIncludes($input->getArgument('include'));
try {
// And go!
$shell->run();
} catch (\Throwable $e) {
\fwrite(\STDERR, $e->getMessage().\PHP_EOL);
// @todo this triggers the "exited unexpectedly" logic in the
// ForkingLoop, so we can't exit(1) after starting the shell...
// fix this :)
// exit(1);
}
};
}
}