zf.php

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<?php
class ZF
{

    protected $_clientLoaded = false;

    protected $_mode = 'runTool';

    protected $_messages = array();

    protected $_homeDirectory = null;

    protected $_storageDirectory = null;

    protected $_configFile = null;

    public static function main()
    {
        $zf = new self();
        $zf->bootstrap();
        $zf->run();
    }

    public function bootstrap()
    {
        // detect settings
        $this->_mode             = $this->_detectMode();
        $this->_homeDirectory    = $this->_detectHomeDirectory();
        $this->_storageDirectory = $this->_detectStorageDirectory();
        $this->_configFile       = $this->_detectConfigFile();

        // setup
        $this->_setupPHPRuntime();
        $this->_setupToolRuntime();
    }

    public function run()
    {
        switch ($this->_mode) {
            case 'runError':
                $this->_runError();
                $this->_runInfo();
                break;
            case 'runSetup':
                if ($this->_runSetup() === false) {
                    $this->_runInfo();
                }
                break;
            case 'runInfo':
                $this->_runInfo();
                break;
            case 'runTool':
            default:
                $this->_runTool();
                break;
        }

        return $this;
    }

    protected function _detectMode()
    {
        $arguments = $_SERVER['argv'];

        $mode = 'runTool';

        if (!isset($arguments[0])) {
            return $mode;
        }

        if ($arguments[0] == $_SERVER['PHP_SELF']) {
            $this->_executable = array_shift($arguments);
        }

        if (!isset($arguments[0])) {
            return $mode;
        }

        if ($arguments[0] == '--setup') {
            $mode = 'runSetup';
        } elseif ($arguments[0] == '--info') {
            $mode = 'runInfo';
        }

        return $mode;
    }


    protected function _detectHomeDirectory($mustExist = true, $returnMessages = true)
    {
        $homeDirectory = null;

        $homeDirectory = getenv('ZF_HOME'); // check env var ZF_HOME
        if ($homeDirectory) {
            $this->_logMessage('Home directory found in environment variable ZF_HOME with value ' . $homeDirectory, $returnMessages);
            if (!$mustExist || ($mustExist && file_exists($homeDirectory))) {
                return $homeDirectory;
            } else {
                $this->_logMessage('Home directory does not exist at ' . $homeDirectory, $returnMessages);
            }
        }

        $homeDirectory = getenv('HOME'); // HOME environment variable

        if ($homeDirectory) {
            $this->_logMessage('Home directory found in environment variable HOME with value ' . $homeDirectory, $returnMessages);
            if (!$mustExist || ($mustExist && file_exists($homeDirectory))) {
                return $homeDirectory;
            } else {
                $this->_logMessage('Home directory does not exist at ' . $homeDirectory, $returnMessages);
            }

        }

        $homeDirectory = getenv('HOMEPATH');

        if ($homeDirectory) {
            $this->_logMessage('Home directory found in environment variable HOMEPATH with value ' . $homeDirectory, $returnMessages);
            if (!$mustExist || ($mustExist && file_exists($homeDirectory))) {
                return $homeDirectory;
            } else {
                $this->_logMessage('Home directory does not exist at ' . $homeDirectory, $returnMessages);
            }
        }

        $homeDirectory = getenv('USERPROFILE');

        if ($homeDirectory) {
            $this->_logMessage('Home directory found in environment variable USERPROFILE with value ' . $homeDirectory, $returnMessages);
            if (!$mustExist || ($mustExist && file_exists($homeDirectory))) {
                return $homeDirectory;
            } else {
                $this->_logMessage('Home directory does not exist at ' . $homeDirectory, $returnMessages);
            }
        }

        return false;
    }

    protected function _detectStorageDirectory($mustExist = true, $returnMessages = true)
    {
        $storageDirectory = false;

        $storageDirectory = getenv('ZF_STORAGE_DIR');
        if ($storageDirectory) {
            $this->_logMessage('Storage directory path found in environment variable ZF_STORAGE_DIR with value ' . $storageDirectory, $returnMessages);
            if (!$mustExist || ($mustExist && file_exists($storageDirectory))) {
                return $storageDirectory;
            } else {
                $this->_logMessage('Storage directory does not exist at ' . $storageDirectory, $returnMessages);
            }
        }

        $homeDirectory = ($this->_homeDirectory) ? $this->_homeDirectory : $this->_detectHomeDirectory(true, false);

        if ($homeDirectory) {
            $storageDirectory = $homeDirectory . '/.zf/';
            $this->_logMessage('Storage directory assumed in home directory at location ' . $storageDirectory, $returnMessages);
            if (!$mustExist || ($mustExist && file_exists($storageDirectory))) {
                return $storageDirectory;
            } else {
                $this->_logMessage('Storage directory does not exist at ' . $storageDirectory, $returnMessages);
            }
        }

        return false;
    }

    protected function _detectConfigFile($mustExist = true, $returnMessages = true)
    {
        $configFile = null;

        $configFile = getenv('ZF_CONFIG_FILE');
        if ($configFile) {
            $this->_logMessage('Config file found environment variable ZF_CONFIG_FILE at ' . $configFile, $returnMessages);
            if (!$mustExist || ($mustExist && file_exists($configFile))) {
                return $configFile;
            } else {
                $this->_logMessage('Config file does not exist at ' . $configFile, $returnMessages);
            }
        }

        $homeDirectory = ($this->_homeDirectory) ? $this->_homeDirectory : $this->_detectHomeDirectory(true, false);
        if ($homeDirectory) {
            $configFile = $homeDirectory . '/.zf.ini';
            $this->_logMessage('Config file assumed in home directory at location ' . $configFile, $returnMessages);
            if (!$mustExist || ($mustExist && file_exists($configFile))) {
                return $configFile;
            } else {
                $this->_logMessage('Config file does not exist at ' . $configFile, $returnMessages);
            }
        }

        $storageDirectory = ($this->_storageDirectory) ? $this->_storageDirectory : $this->_detectStorageDirectory(true, false);
        if ($storageDirectory) {
            $configFile = $storageDirectory . '/zf.ini';
            $this->_logMessage('Config file assumed in storage directory at location ' . $configFile, $returnMessages);
            if (!$mustExist || ($mustExist && file_exists($configFile))) {
                return $configFile;
            } else {
                $this->_logMessage('Config file does not exist at ' . $configFile, $returnMessages);
            }
        }

        return false;
    }


    protected function _setupPHPRuntime()
    {
        // set php runtime settings
        ini_set('display_errors', true);

        // support the changing of the current working directory, necessary for some providers
        $cwd = getenv('ZEND_TOOL_CURRENT_WORKING_DIRECTORY');
        if ($cwd != '' && realpath($cwd)) {
            chdir($cwd);
        }

        if (!$this->_configFile) {
            return;
        }
        $zfINISettings = parse_ini_file($this->_configFile);
        $phpINISettings = ini_get_all();
        foreach ($zfINISettings as $zfINIKey => $zfINIValue) {
            if (substr($zfINIKey, 0, 4) === 'php.') {
                $phpINIKey = substr($zfINIKey, 4);
                if (array_key_exists($phpINIKey, $phpINISettings)) {
                    ini_set($phpINIKey, $zfINIValue);
                }
            }
        }
    }

    protected function _setupToolRuntime()
    {

        $includePathPrepend = getenv('ZEND_TOOL_INCLUDE_PATH_PREPEND');
        $includePathFull = getenv('ZEND_TOOL_INCLUDE_PATH');

        // check if the user has not provided anything
        if (!($includePathPrepend || $includePathFull)) {
            if ($this->_tryClientLoad()) {
                return;
            }
        }

        // if ZF is not in the include_path, but relative to this file, put it in the include_path
        if ($includePathPrepend || $includePathFull) {
            if (isset($includePathPrepend) && ($includePathPrepend !== false)) {
                set_include_path($includePathPrepend . PATH_SEPARATOR . get_include_path());
            } elseif (isset($includePathFull) && ($includePathFull !== false)) {
                set_include_path($includePathFull);
            }
        }

        if ($this->_tryClientLoad()) {
            return;
        }

        $zfIncludePath['relativePath'] = dirname(__FILE__) . '/../library/';
        if (file_exists($zfIncludePath['relativePath'] . 'Zend/Tool/Framework/Client/Console.php')) {
            set_include_path(realpath($zfIncludePath['relativePath']) . PATH_SEPARATOR . get_include_path());
        }

        if (!$this->_tryClientLoad()) {
            $this->_mode = 'runError';
            return;
        }
    }

    protected function _tryClientLoad()
    {
        $this->_clientLoaded = false;
        $fh = @fopen('Zend/Tool/Framework/Client/Console.php', 'r', true);
        if (!$fh) {
            return $this->_clientLoaded; // false
        } else {
            fclose($fh);
            unset($fh);
            include 'Zend/Tool/Framework/Client/Console.php';
            $this->_clientLoaded = class_exists('Zend_Tool_Framework_Client_Console');
        }

        return $this->_clientLoaded;
    }

    protected function _runError()
    {

        echo <<<EOS

***************************** ZF ERROR ********************************
In order to run the zf command, you need to ensure that Zend Framework
is inside your include_path.  There are a variety of ways that you can
ensure that this zf command line tool knows where the Zend Framework
library is on your system, but not all of them can be described here.

The easiest way to get the zf command running is to give it the include
path via an environment variable ZEND_TOOL_INCLUDE_PATH or
ZEND_TOOL_INCLUDE_PATH_PREPEND with the proper include path to use,
then run the command "zf --setup".  This command is designed to create
a storage location for your user, as well as create the zf.ini file
that the zf command will consult in order to run properly on your
system.

Example you would run:

$ ZEND_TOOL_INCLUDE_PATH=/path/to/library zf --setup

Your are encourged to read more in the link that follows.

EOS;

    }

    protected function _runInfo()
    {
        echo 'Zend_Tool & CLI Setup Information' . PHP_EOL
           . '(available via the command line "zf --info")'
           . PHP_EOL;

        echo '   * ' . implode(PHP_EOL . '   * ', $this->_messages) . PHP_EOL;

        echo PHP_EOL;

        echo 'To change the setup of this tool, run: "zf --setup"';

        echo PHP_EOL;

    }

    protected function _runSetup()
    {
        $setupCommand = (isset($_SERVER['argv'][2])) ? $_SERVER['argv'][2] : null;

        switch ($setupCommand) {
            case 'storage-directory':
                $this->_runSetupStorageDirectory();
                break;
            case 'config-file':
                $this->_runSetupConfigFile();
                break;
            default:
                $this->_runSetupMoreInfo();
                break;
        }
    }

    protected function _runSetupStorageDirectory()
    {
        $storageDirectory = $this->_detectStorageDirectory(false, false);

        if (file_exists($storageDirectory)) {
            echo 'Directory already exists at ' . $storageDirectory . PHP_EOL
               . 'Cannot create storage directory.';
            return;
        }

        mkdir($storageDirectory);

        echo 'Storage directory created at ' . $storageDirectory . PHP_EOL;
    }

    protected function _runSetupConfigFile()
    {
        $configFile = $this->_detectConfigFile(false, false);

        if (file_exists($configFile)) {
            echo 'File already exists at ' . $configFile . PHP_EOL
               . 'Cannot write new config file.';
            return;
        }

        $includePath = get_include_path();

        $contents = 'php.include_path = "' . $includePath . '"';

        file_put_contents($configFile, $contents);

        $iniValues = ini_get_all();
        if ($iniValues['include_path']['global_value'] != $iniValues['include_path']['local_value']) {
            echo 'NOTE: the php include_path to be used with the tool has been written' . PHP_EOL
               . 'to the config file, using ZEND_TOOL_INCLUDE_PATH (or other include_path setters)' . PHP_EOL
               . 'is no longer necessary.' . PHP_EOL . PHP_EOL;
        }

        echo 'Config file written to ' . $configFile . PHP_EOL;
    }

    protected function _runSetupMoreInfo()
    {
        $homeDirectory    = $this->_detectHomeDirectory(false, false);
        $storageDirectory = $this->_detectStorageDirectory(false, false);
        $configFile       = $this->_detectConfigFile(false, false);

        echo <<<EOS

ZF Command Line Tool - Setup
----------------------------

Current Paths (Existing or not):
    Home Directory: {$homeDirectory}
    Storage Directory: {$storageDirectory}
    Config File: {$configFile}

Important Environment Variables:
    ZF_HOME
        - the directory this tool will look for a home directory
        - directory must exist
    ZF_STORAGE_DIR
        - where this tool will look for a storage directory
        - directory must exist
    ZF_CONFIG_FILE
        - where this tool will look for a configuration file
    ZF_TOOL_INCLUDE_PATH
        - set the include_path for this tool to use this value
    ZF_TOOL_INCLUDE_PATH_PREPEND
        - prepend the current php.ini include_path with this value

Search Order:
    Home Directory:
        - ZF_HOME, then HOME (*nix), then HOMEPATH (windows)
    Storage Directory:
        - ZF_STORAGE_DIR, then {home}/.zf/
    Config File:
        - ZF_CONFIG_FILE, then {home}/.zf.ini, then {home}/zf.ini,
          then {storage}/zf.ini

Commands:
    zf --setup storage-directory
        - setup the storage directory, directory will be created
    zf --setup config-file
        - create the config file with some default values


EOS;
    }

    protected function _runTool()
    {

        $configOptions = array();
        if (isset($this->_configFile) && $this->_configFile) {
            $configOptions['configOptions']['configFilepath'] = $this->_configFile;
        }
        if (isset($this->_storageDirectory) && $this->_storageDirectory) {
            $configOptions['storageOptions']['directory'] = $this->_storageDirectory;
        }

        // ensure that zf.php loads the Zend_Tool_Project features
        $configOptions['classesToLoad'] = 'Zend_Tool_Project_Provider_Manifest';

        $console = new Zend_Tool_Framework_Client_Console($configOptions);
        $console->dispatch();
    }

    protected function _logMessage($message, $storeMessage = true)
    {
        if (!$storeMessage) {
            return;
        }

        $this->_messages[] = $message;
    }


}

if (!getenv('ZF_NO_MAIN')) {
    ZF::main();
}