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CodeCleaner	--	ren
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CodeCleaner.php	18.075KB	edt ren
CodeCleanerAware.php	0.559KB	edt ren
ConfigPaths.php	12.338KB	edt ren
Configuration.php	76.859KB	edt ren
Context.php	7.634KB	edt ren
ContextAware.php	0.554KB	edt ren
EnvInterface.php	0.433KB	edt ren
ExecutionClosure.php	2.363KB	edt ren
ExecutionLoopClosure.php	3.455KB	edt ren
OutputAware.php	0.57KB	edt ren
ParserFactory.php	0.732KB	edt ren
Shell.php	55.567KB	edt ren
ShellLogger.php	2.283KB	edt ren
Sudo.php	5.932KB	edt ren
SuperglobalsEnv.php	0.605KB	edt ren
SystemEnv.php	0.65KB	edt ren
functions.php	23.186KB	edt ren

<?php

/*
 * This file is part of Psy Shell.
 *
 * (c) 2012-2025 Justin Hileman
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Psy;

/**
 * A Psy Shell configuration path helper.
 */
class ConfigPaths
{
    private ?string $configDir = null;
    private ?string $dataDir = null;
    private ?string $runtimeDir = null;
    private EnvInterface $env;

/**
     * ConfigPaths constructor.
     *
     * Optionally provide `configDir`, `dataDir` and `runtimeDir` overrides.
     *
     * @see self::overrideDirs
     *
     * @param string[]          $overrides Directory overrides
     * @param EnvInterface|null $env
     */
    public function __construct(array $overrides = [], ?EnvInterface $env = null)
    {
        $this->overrideDirs($overrides);

$this->env = $env ?: (\PHP_SAPI === 'cli-server' ? new SystemEnv() : new SuperglobalsEnv());
    }

/**
     * Provide `configDir`, `dataDir` and `runtimeDir` overrides.
     *
     * If a key is set but empty, the override will be removed. If it is not set
     * at all, any existing override will persist.
     *
     * @param string[] $overrides Directory overrides
     */
    public function overrideDirs(array $overrides)
    {
        if (\array_key_exists('configDir', $overrides)) {
            $this->configDir = $overrides['configDir'] ?: null;
        }

if (\array_key_exists('dataDir', $overrides)) {
            $this->dataDir = $overrides['dataDir'] ?: null;
        }

if (\array_key_exists('runtimeDir', $overrides)) {
            $this->runtimeDir = $overrides['runtimeDir'] ?: null;
        }
    }

/**
     * Get the current home directory.
     */
    public function homeDir(): ?string
    {
        if ($homeDir = $this->getEnv('HOME') ?: $this->windowsHomeDir()) {
            return \strtr($homeDir, '\\', '/');
        }

return null;
    }

private function windowsHomeDir(): ?string
    {
        if (\defined('PHP_WINDOWS_VERSION_MAJOR')) {
            $homeDrive = $this->getEnv('HOMEDRIVE');
            $homePath = $this->getEnv('HOMEPATH');
            if ($homeDrive && $homePath) {
                return $homeDrive.'/'.$homePath;
            }
        }

return null;
    }

private function homeConfigDir(): ?string
    {
        if ($homeConfigDir = $this->getEnv('XDG_CONFIG_HOME')) {
            return $homeConfigDir;
        }

$homeDir = $this->homeDir();
        if ($homeDir === null) {
            return null;
        }

return $homeDir === '/' ? $homeDir.'.config' : $homeDir.'/.config';
    }

/**
     * Get potential config directory paths.
     *
     * Returns `~/.psysh`, `%APPDATA%/PsySH` (when on Windows), and all
     * XDG Base Directory config directories:
     *
     *     http://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html
     *
     * @return string[]
     */
    public function configDirs(): array
    {
        if ($this->configDir !== null) {
            return [$this->configDir];
        }

$configDirs = $this->getEnvArray('XDG_CONFIG_DIRS') ?: ['/etc/xdg'];

return $this->allDirNames(\array_merge([$this->homeConfigDir()], $configDirs));
    }

/**
     * Get the current home config directory.
     *
     * Returns the highest precedence home config directory which actually
     * exists. If none of them exists, returns the highest precedence home
     * config directory (`%APPDATA%/PsySH` on Windows, `~/.config/psysh`
     * everywhere else).
     *
     * @see self::homeConfigDir
     */
    public function currentConfigDir(): ?string
    {
        if ($this->configDir !== null) {
            return $this->configDir;
        }

$configDirs = $this->allDirNames([$this->homeConfigDir()]);

foreach ($configDirs as $configDir) {
            if (@\is_dir($configDir)) {
                return $configDir;
            }
        }

return $configDirs[0] ?? null;
    }

/**
     * Find real config files in config directories.
     *
     * @param string[] $names Config file names
     *
     * @return string[]
     */
    public function configFiles(array $names): array
    {
        return $this->allRealFiles($this->configDirs(), $names);
    }

/**
     * Get potential data directory paths.
     *
     * If a `dataDir` option was explicitly set, returns an array containing
     * just that directory.
     *
     * Otherwise, it returns `~/.psysh` and all XDG Base Directory data directories:
     *
     *     http://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html
     *
     * @return string[]
     */
    public function dataDirs(): array
    {
        if ($this->dataDir !== null) {
            return [$this->dataDir];
        }

$homeDataDir = $this->getEnv('XDG_DATA_HOME') ?: $this->homeDir().'/.local/share';
        $dataDirs = $this->getEnvArray('XDG_DATA_DIRS') ?: ['/usr/local/share', '/usr/share'];

return $this->allDirNames(\array_merge([$homeDataDir], $dataDirs));
    }

/**
     * Get the current home data directory.
     *
     * Returns the highest precedence home data directory which actually
     * exists and is writable. If none of them exists, returns the highest
     * precedence home data directory.
     */
    public function currentDataDir(): ?string
    {
        if ($this->dataDir !== null) {
            return $this->dataDir;
        }

$dataDirs = $this->dataDirs();

// Find first writable directory
        foreach ($dataDirs as $dir) {
            if (@\is_dir($dir) && @\is_writable($dir)) {
                return $dir;
            }
        }

// Return first (user) directory even if it doesn't exist yet
        return $dataDirs[0] ?? null;
    }

/**
     * Find real data files in config directories.
     *
     * @param string[] $names Config file names
     *
     * @return string[]
     */
    public function dataFiles(array $names): array
    {
        return $this->allRealFiles($this->dataDirs(), $names);
    }

/**
     * Get a runtime directory.
     *
     * Defaults to `/psysh` inside the system's temp dir.
     */
    public function runtimeDir(): string
    {
        if ($this->runtimeDir !== null) {
            return $this->runtimeDir;
        }

// Fallback to a boring old folder in the system temp dir.
        $runtimeDir = $this->getEnv('XDG_RUNTIME_DIR') ?: \sys_get_temp_dir();

return \strtr($runtimeDir, '\\', '/').'/psysh';
    }

/**
     * Get a list of directories in PATH.
     *
     * If $PATH is unset/empty it defaults to '/usr/sbin:/usr/bin:/sbin:/bin'.
     *
     * @return string[]
     */
    public function pathDirs(): array
    {
        return $this->getEnvArray('PATH') ?: ['/usr/sbin', '/usr/bin', '/sbin', '/bin'];
    }

/**
     * Locate a command (an executable) in $PATH.
     *
     * Behaves like 'command -v COMMAND' or 'which COMMAND'.
     * If $PATH is unset/empty it defaults to '/usr/sbin:/usr/bin:/sbin:/bin'.
     *
     * @param string $command the executable to locate
     */
    public function which($command): ?string
    {
        if (!\is_string($command) || $command === '') {
            return null;
        }

foreach ($this->pathDirs() as $path) {
            $fullpath = $path.\DIRECTORY_SEPARATOR.$command;
            if (@\is_file($fullpath) && @\is_executable($fullpath)) {
                return $fullpath;
            }
        }

return null;
    }

/**
     * Get all PsySH directory name candidates given a list of base directories.
     *
     * This expects that XDG-compatible directory paths will be passed in.
     * `psysh` will be added to each of $baseDirs, and we'll throw in `~/.psysh`
     * and a couple of Windows-friendly paths as well.
     *
     * @param string[] $baseDirs base directory paths
     *
     * @return string[]
     */
    private function allDirNames(array $baseDirs): array
    {
        $baseDirs = \array_filter($baseDirs);
        $dirs = \array_map(function ($dir) {
            return \strtr($dir, '\\', '/').'/psysh';
        }, $baseDirs);

// Add ~/.psysh
        if ($home = $this->getEnv('HOME')) {
            $dirs[] = \strtr($home, '\\', '/').'/.psysh';
        }

// Add some Windows specific ones :)
        if (\defined('PHP_WINDOWS_VERSION_MAJOR')) {
            if ($appData = $this->getEnv('APPDATA')) {
                // AppData gets preference
                \array_unshift($dirs, \strtr($appData, '\\', '/').'/PsySH');
            }

if ($windowsHomeDir = $this->windowsHomeDir()) {
                $dir = \strtr($windowsHomeDir, '\\', '/').'/.psysh';
                if (!\in_array($dir, $dirs)) {
                    $dirs[] = $dir;
                }
            }
        }

return $dirs;
    }

/**
     * Given a list of directories, and a list of filenames, find the ones that
     * are real files.
     *
     * @return string[]
     */
    private function allRealFiles(array $dirNames, array $fileNames): array
    {
        $files = [];
        foreach ($dirNames as $dir) {
            foreach ($fileNames as $name) {
                $file = $dir.'/'.$name;
                if (@\is_file($file)) {
                    $files[] = $file;
                }
            }
        }

return $files;
    }

/**
     * Make a path prettier by replacing cwd with . or home directory with ~.
     *
     * @param string|mixed $path       Path to prettify
     * @param string|null  $relativeTo Directory to make path relative to (defaults to cwd)
     * @param string|null  $homeDir    Home directory to replace with ~ (defaults to actual home)
     *
     * @return string|mixed Pretty path, or original value if not a string
     */
    public static function prettyPath($path, ?string $relativeTo = null, ?string $homeDir = null)
    {
        if (!\is_string($path)) {
            return $path;
        }

$path = \strtr($path, '\\', '/');

// Try replacing relativeTo directory first (more specific)
        $relativeTo = $relativeTo ?: \getcwd();
        if ($relativeTo !== false) {
            $relativeTo = \rtrim(\strtr($relativeTo, '\\', '/'), '/').'/';
            if (\strpos($path, $relativeTo) === 0) {
                return './'.\substr($path, \strlen($relativeTo));
            }
        }

// Fall back to replacing home directory
        $homeDir = $homeDir ?: (new self())->homeDir();
        if ($homeDir && $homeDir !== '/') {
            $homeDir = \rtrim(\strtr($homeDir, '\\', '/'), '/').'/';
            if (\strpos($path, $homeDir) === 0) {
                return '~/'.\substr($path, \strlen($homeDir));
            }
        }

return $path;
    }

/**
     * Ensure that $dir exists and is writable.
     *
     * Generates E_USER_NOTICE error if the directory is not writable or creatable.
     *
     * @param string $dir
     *
     * @return bool False if directory exists but is not writeable, or cannot be created
     */
    public static function ensureDir(string $dir): bool
    {
        if (!\is_dir($dir)) {
            // Just try making it and see if it works
            @\mkdir($dir, 0700, true);
        }

if (!\is_dir($dir) || !\is_writable($dir)) {
            \trigger_error(\sprintf('Writing to directory %s is not allowed.', $dir), \E_USER_NOTICE);

return false;
        }

return true;
    }

/**
     * Ensure that $file exists and is writable, make the parent directory if necessary.
     *
     * Generates E_USER_NOTICE error if either $file or its directory is not writable.
     *
     * @param string $file
     *
     * @return string|false Full path to $file, or false if file is not writable
     */
    public static function touchFileWithMkdir(string $file)
    {
        if (\file_exists($file)) {
            if (\is_writable($file)) {
                return $file;
            }

\trigger_error(\sprintf('Writing to %s is not allowed.', $file), \E_USER_NOTICE);

return false;
        }

if (!self::ensureDir(\dirname($file))) {
            return false;
        }

\touch($file);

return $file;
    }

private function getEnv(string $key)
    {
        return $this->env->get($key);
    }

private function getEnvArray(string $key)
    {
        if ($value = $this->getEnv($key)) {
            return \explode(\PATH_SEPARATOR, $value);
        }

return null;
    }
}