kjscompiler.Program.java Source code

Introduction

Here is the source code for kjscompiler.Program.java

Source

/*
 * kjscompiler
 * Copyright (C) 2014  Oleksandr Knyga, oleksandrknyga@gmail.com
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package kjscompiler;

import com.google.javascript.jscomp.JSError;
import com.google.javascript.jscomp.WarningLevel;

import java.io.IOException;
import java.io.PrintStream;
import java.util.ArrayList;
import java.util.Hashtable;
import java.util.List;
import java.util.logging.Level;
import org.json.simple.*;
import org.json.simple.parser.ParseException;

/**
 * 
 * @author agnynk
 */
public class Program {

    private static String settingsPath = "kjscompiler.json";
    private static final String settingsArgName = "settings", debugArgName = "debug";
    private static Boolean isDebug = false;

    /**
     * @param args
     *            the command line arguments
     */
    public static void main(String[] args) {

        ArgScanner as = new ArgScanner(args);

        if (as.checkValue(settingsArgName)) {
            settingsPath = as.getValue(settingsArgName);
        }

        if (as.checkValue(debugArgName)) {
            isDebug = true;
        }

        try {
            run();
        } catch (ParseException ex) {

            System.out.println("Parse Exception: " + ex.getMessage());

            if (isDebug) {
                ex.printStackTrace(new PrintStream(System.out));
            }

            System.exit(-1);
        } catch (IOException ex) {
            System.out.println("IO Exception: " + ex.getMessage());

            if (isDebug) {
                ex.printStackTrace(new PrintStream(System.out));
            }

            System.exit(-2);
        } catch (NullPointerException ex) {
            System.out.println("NullPointer Exception: " + ex.getMessage());

            if (isDebug) {
                ex.printStackTrace(new PrintStream(System.out));
            }

            System.exit(-3);
        } catch (Exception ex) {
            System.out.println("Exception: " + ex.getMessage());

            if (isDebug) {
                ex.printStackTrace(new PrintStream(System.out));
            }

            System.exit(-100);
        }

        System.exit(1);
    }

    private static void run() throws ParseException, IOException, NullPointerException {
        Settings settings = new Settings(settingsPath);

        System.out.println("Searching for " + settings.getPattern() + " in " + settings.getBaseDir());

        JSONArray Base = settings.getBaseDir();
        List<String> files = new ArrayList<String>();
        for (int i = 0; i < Base.size(); i++) {
            files.addAll(FileScanner.run((String) Base.get(i), settings.getPattern(), settings.getProjectPath()));
        }
        System.out.println("Found " + files.size() + " files");

        List<FileInfo> fiPrimaries = new ArrayList<FileInfo>();
        List<String> pExternals = new ArrayList<String>();

        Hashtable<String, Integer> fiHtPrimaries = new Hashtable<String, Integer>();

        for (String fullpath : files) {
            FileInfo fi = new FileInfo(fullpath);

            if (!fi.getIsIgnore()) {

                if (fi.getIsExternal()) {
                    pExternals.add(fi.getFilename());
                } else {
                    fiPrimaries.add(fi);
                }
            }
        }

        System.out.println("Primaries: " + fiPrimaries.size() + " files");
        System.out.println("Externals: " + pExternals.size() + " files");

        OrderDeps od = new OrderDeps(fiPrimaries);
        List<FileInfo> ordered = od.getOrderedFiles();
        List<String> oErrors = od.getErrors();

        for (int i = 0, length = oErrors.size(); i < length; i++) {
            String err = oErrors.get(i);
            System.out.println("Order Error #" + (i + 1) + ": " + err);
        }

        System.out.println("Primaries ordered");

        List<String> pPrimaries = new ArrayList<String>();

        for (int i = 0, length = ordered.size(); i < length; i++) {
            pPrimaries.add(ordered.get(i).getFilename());
        }

        String compilationLevel = settings.getLevel();

        GoogleClosureCompiler compiler = new GoogleClosureCompiler(pPrimaries, settings.getOutput(),
                compilationLevel, pExternals);
        compiler.setWrapper(settings.getWrapper());
        compiler.setWarningLevel(WarningLevel.VERBOSE);
        compiler.run();
        System.out.println("Compiled file: " + settings.getOutput());

        JSError[] errors = compiler.getErrors();
        for (int i = 0, length = errors.length; i < length; i++) {
            JSError err = errors[i];
            System.out.println("Error #" + (i + 1) + ": " + err.description + " in " + err.sourceName + " ("
                    + err.lineNumber + ")");
        }
        if (errors.length == 0) {
            JSError[] warnings = compiler.getWarnings();
            for (int i = 0, length = warnings.length; i < length; i++) {
                JSError warn = errors[i];
                System.out.println("Warning #" + (i + 1) + ": " + warn.description + " in " + warn.sourceName + " ("
                        + warn.lineNumber + ")");
            }
        }

        System.out.println("\n\n Thank you for using kJScompiler!\n Who said JavaScript can't be compiled?\n");

        System.exit(0);
    }

}