JsCompile.php

[Pman.Core] / JsCompile.php

<?php

/**
* wrapper code around js builder...
* 
*  -- we will use this later to compile on the fly...
*
*
* For general usage:
*  $x = new Pman_Core_JsCompile();
*  $x->pack('/path/to/files/', 'destination')
*  
*/
require_once 'Pman.php';


class Pman_Core_JsCompile  extends Pman
{
    var $cli = false;
    function getAuth()
    {
        // command line only ATM
        $this->cli = HTML_FlexyFramework::get()->cli;
      //  var_dump($this->cli);
        if ($this->cli) {
            return true;
        }
        return  false;
    }
    
    
    function get($proj, $args)
    {
        if (empty($args)) {
            die("missing action : eg. build or install");
        }
        // list of projects.
        if (empty($args[1])) {
            
            $ar = $this->gatherProjects();
             echo "SELECT Component to build\n";
            print_r($ar);
            exit;
        } else {
            $ar = array($args[1]); 
            //$ar = $args;
            //array_shift($ar);
        }
        
        switch ($args[0]) {
            case 'build':
             
                foreach($ar as $p) {
                    $this->build($p);
                    //$this->install($p);
                }
                break;
            case 'install' :     // needed for install on remote sites..
                die('not yet..');
                foreach($ar as $p) {
                    $this->install($p);
                }
                break;
        }
        exit;
    }
    
    
    
    function packScript($basedir, $files,  $output_path, $output_url)
    {
        // this outputs <script tags..>
        // either for just the original files,
        // or the compressed version.
        // first expand files..
        
        $arfiles = array();
        foreach($files as $f) {
            if (!is_dir($basedir .'/' .$f)) {
                $arfiles[$basedir .'/' .$f] = filemtime($basedir .'/' .$f);
                continue;
            }
            foreach(glob($basedir .'/' .$f.'/*.js') as $fx) {
                $arfiles[$fx] = filemtime($fx);
            }
        }
        
        $output = md5(serialize($arfiles)) .'.js';
        
        if (!file_exists($output_path.'/'.$output)) {
            $this->pack($arfiles,$output_path.'/'.$output);
        }
        
        if (file_exists($output_path.'/'.$output)) {
            
            echo '<script type="text/javascript" src="'.$output_url.'/'. $output.'"></script>';
            return;
        }
        echo "output original..";
        exit;
        
        
        
        
        
    }
    
    /**
     * wrapper arroudn packer...
     * @param {Array} map of $files => filemtime the files to pack
     * @param {String} $output name fo file to output
     *
     */
    function pack($files, $output)
    {
        
         
        $o = HTML_FlexyFramework::get()->Pman_Core;
        
        if (empty($o['jspacker']) || !file_exists($o['jspacker'].'/pack.js')) {
            echo '<!-- jspacker not set -->';
            return false;
            
        }
        require_once 'System.php';
        $seed= System::which('seed');
        if (!$seed) {
            echo '<!-- seed not installed -->';
            return false;
            
        }
        $targetm = file_exists($output) ? filemtime($output) : 0;
        $max = 0;
        $ofiles = array();
        foreach($files as $f => $mt) {
            $max = max($max,$mt);
            $ofiles[] = escapeshellarg($f);
        }
        if ($max < $targetm)  {
            return true;
        }
        if (!file_exists(dirname($output))) {
            mkdir(dirname($output), 0755, true);
        }
        $eoutput = escapeshellarg($output);
        $cmd = "$seed {$o['jspacker']}/pack.js  -o $eoutput " . implode($ofiles, ' ');
        //echo "<PRE>$cmd\n";
        //echo `$cmd`;
        `$cmd`;
        
        
        // we should do more checking.. return val etc..
        if (file_exists($output) && ($max < filemtime($output) ) ) {
            return true;
        }
        return false;
        
    }
    
    
    /***
     * build:
     *
     * @param {String} $proj name of Pman component to build
     * runs pack.js -m {proj} -a $src/*.js
     * 
     *
     */
      
    function build($proj) 
    {
        echo "Building $proj\n";
       // var_dump($proj);
        if (empty($proj)) {
            $this->err = "no project";
            if ($this->cli) echo $this->err;
            return;
        }
        // first item in path is always the app start directory..
        $src= array_shift(explode(PATH_SEPARATOR, ini_get('include_path'))) .'/Pman/'. $proj;
        
        
        
       //$tmp = ini_get('session.save_path')."/{$proj}_". posix_getuid(). '_'.md5($src);
        
        
        require_once 'System.php';
        $seed= System::which('seed');
        if (!$seed) {
            $this->err ="no seed installed";
            if ($this->cli) echo $this->err;
            return false;
        }
        
        $o = HTML_FlexyFramework::get()->Pman_Core;
        
        if (empty($o['jspacker']) || !file_exists($o['jspacker'].'/pack.js')) {
            $this->err ="no jstoolkit path set [Pman_Core][jspacker] to the
                    introspection documentation directory where pack.js is located.";
            if ($this->cli) echo $this->err;
            return false;
        }  
        
        // should we be more specirfic!??!?!?
         
        $cmd = "$seed {$o['jspacker']}/pack.js -m $proj  -a  $src/*.js";
        echo "$cmd\n";
        passthru($cmd);
        // technically we should trash old compiled files.. 
        // or we move towards a 'cache in session directory model..'
        
        
        /*
        
        $ret = $tmp . '/'. $proj . '.js';
        if ($this->cli) {
            echo "BUILT:  $ret \n";
            exit;
        }
        return $ret;
        */
        
    }
    // link {PROJECT}/compiled/{PROJECT}.js to _compiled_ folder to make it live.
        
    function install($proj) 
    {
       
        $base = dirname(realpath($_SERVER["SCRIPT_FILENAME"]));
        if (empty($base )) {
            $base = getcwd();
        }
        var_dump($base .'/Pman/'. $proj.'/compiled/'.$proj .'.js');
        $src =  realpath($base .'/Pman/'. $proj.'/compiled/'.$proj .'.js');
        if (!$src) {
            echo "SKIP : no js file $proj\n";
            return;
        }
        if (!file_exists("$base/_compiled_")) {
            mkdir ("$base/_compiled_", 0755, true);
        }
        $target = "$base/_compiled_/".$proj .'.js';
        print_R(array($src,$target));
        if (file_exists($target)) {
            return; // already installed.
        }
        
        symlink($src, $target);
        
        
    }
    
    function gatherProjects() {
        $src= array_shift(explode(PATH_SEPARATOR, ini_get('include_path'))) .'/Pman';
        
        $ret = array();
        foreach(scandir($src) as $f) {
            if (!strlen($f) || $f[0] == '.') {
                continue;
            }
            
            $fp = "$src/$f";
            if (!is_dir($fp)) {
                continue;
            }
            if ($f == 'templates') {
                continue;
            }
            $ret[] = $f;
            
            
        }
        return $ret;
    }
}