JavaScript macro for Komodo Edit (or IDE) to run file/selection in PHP interpreter

Komodo: Run Current File or Selection with PHP

Gist title: "Komodo: Run Current File or Selection with PHP"

Summary: Save this small JavaScript program to the Toolbox in Komodo Edit (or IDE), assign a key binding to it, and use it to execute the current file (or the selected code if there is any) in a PHP interpreter.

Run_Current_File_or_Selection_with_PHP.js

new function () {
    /**
     * Execute Macro
     *
     * @returns {void}
     */
    this.exec = function () {
        // Check for required macro API version and environment
        komodo.assertMacroVersion(3);
        if (komodo.view) {
            komodo.view.setFocus()
        };

        // Get path to PHP interpreter
        var phpInterpreter = Components.classes[
                '@activestate.com/koPrefService;1']
            .getService(Components.interfaces.koIPrefService)
            .prefs.getStringPref('phpDefaultInterpreter');

        // Alert if no PHP interpreter specified
        if (phpInterpreter.length == 0) {
            alert('A PHP interpreter must be specified in Komodo Preferences.');
            return false;
        }
            
        // Get text to execute
        var ke = komodo.editor;
        var text;

        if (!ke.selText) {
            // Use all text in file
            text = ko.views.manager.currentView.scimoz.text.trim()
        } else {
            // Use selected text
            text = komodo.interpolate('%s').trim();
        }

        // Prepend PHP opening tag if necessary
        if (text.substr(0, 2) != '<?') {
            text = '<?php ' + text;
        }

        // Write temporary file
        var file = this.writeFile(text);

        // Run PHP interpreter on contents of temporary file
        ko.run.runEncodedCommand(window, phpInterpreter +
            ' -d display_errors=true ' + file);
    };

    /**
     * Write data to a temporary file
     *
     * @param {string} data Data to write to file
     *
     * @returns {string} Path to temporary file
     */
    this.writeFile = function (data) {
        // Get temp file path
        var tmpFile = Components.classes[
            '@mozilla.org/file/directory_service;1'].getService(Components.interfaces
            .nsIProperties).get('TmpD', Components.interfaces.nsIFile);
        tmpFile.append('komodo_code_selection.php');

        // Initialize (create) file
        var file = Components.classes['@mozilla.org/file/local;1'].createInstance(
            Components.interfaces.nsILocalFile);
        file.initWithPath(tmpFile.path);

        // Open stream to file
        var foStream = Components.classes[
            '@mozilla.org/network/file-output-stream;1'].createInstance(
            Components.interfaces.nsIFileOutputStream);
        foStream.init(file, 0x02 | 0x08 | 0x20, 0666, 0);

        // Use converter to ensure UTF-8 encoding
        var converter = Components.classes[
            '@mozilla.org/intl/converter-output-stream;1'].createInstance(
            Components.interfaces.nsIConverterOutputStream);

        // Write to file
        converter.init(foStream, 'UTF-8', 0, 0);
        converter.writeString(data);
        converter.close();

        return tmpFile.path;
    };

    this.exec();
}

I added a check for the path to the PHP interpreter binary which will display an error message in an alert when it's empty.

Nice. Fwiw rather than indenting the whole else block you could just return false in the conditional.