/*
 * [DropGenJar.java]
 *
 * Summary: Prepare jar manifest for jar.exe when genjar fails.
 *
 * Copyright: (c) 2009-2017 Roedy Green, Canadian Mind Products, http://mindprod.com
 *
 * Licence: This software may be copied and used freely for any purpose but military.
 *          http://mindprod.com/contact/nonmil.html
 *
 * Requires: JDK 1.8+
 *
 * Created with: JetBrains IntelliJ IDEA IDE http://www.jetbrains.com/idea/
 *
 * Version History:
 *  1.0 2014-09-04 initial version
 */
package com.mindprod.repair;

import com.mindprod.commandline.CommandLine;
import com.mindprod.common18.EIO;
import com.mindprod.filter.AllButSVNDirectoriesFilter;
import com.mindprod.filter.ExtensionListFilter;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.IOException;

import static java.lang.System.*;

/**
 * Prepare jar manifest for jar.exe when genjar fails.
 *
 * @author Roedy Green, Canadian Mind Products
 * @version 1.0 2014-09-04 initial version
 * @since 2014-09-04
 */
public class DropGenJar
    {
    /**
     * Compute file growth
     *
     * @param file Java source file to tidy
     */
    private static void processOneFile( final File file ) throws IOException
        {
        final BufferedReader bis = EIO.getBufferedReader( file, 64 * 1024, EIO.UTF8 );
        final File outxml;
        if ( file.getParent().endsWith( EIO.getCoreName( file ) ) )
            {
            // jar for whole package
            outxml = new File( file.getParent(), "forjarexe.xml" );
            }
        else
            {
            // aux jar
            outxml = new File( file.getParent(), "for" + EIO.getCoreName( file ) + "jarexe.xml" );
            }
        final BufferedWriter bos = EIO.getBufferedWriter( outxml, 64 * 1024, EIO.UTF8 );
        bos.write( "<fileset dir=\"${basedir}\" >\n" );
        while ( true )
            {
            final String lookName = bis.readLine();
            // META-INF/MANIFEST.MF
            //  com/mindprod/common18/BigDate.class
            if ( lookName == null )
                {
                break;
                }
            if ( lookName.equals( "META-INF/MANIFEST.MF" ) )
                {
                continue;
                }
            // ignore of package leg declarations
            // META-INF/
            //  META-INF/MANIFEST.MF
            // com/
            // com/mindprod/
            // com/mindprod/commandline/
            if ( lookName.endsWith( "/" ) )
                {
                continue;
                }
            // <include name="com/mindprod/store/ExtractDVDMacros.class" />
            bos.write( "<include name=\"" + lookName + "\" />\n" );
            }
        bos.write( "</fileset>\n" );
        bis.close();
        bos.close();
        out.println( EIO.getCanOrAbsPath( outxml ) + " generated" );
        }

    /**
     * Compute forxxxxjarexe.xml from xxxx.look.
     *
     * @param args list of *.look file to procses, possibly dirs, also -s option.
     *
     * @throws java.io.IOException if cannot read or write source files.
     */
    public static void main( final String[] args ) throws IOException
        {
        final CommandLine files = new CommandLine( args,
                new AllButSVNDirectoriesFilter(),
                new ExtensionListFilter( "look" ) );
        for ( File file : files )
            {
            processOneFile( file );
            } // end for
        }
    }