/*
* Forge Mod Loader
* Copyright (c) 2012-2013 cpw.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the GNU Lesser Public License v2.1
* which accompanies this distribution, and is available at
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
*
* Contributors:
* cpw - implementation
*/
package cpw.mods.fml.common.discovery;
import java.io.File;
import java.io.FileFilter;
import java.io.FileInputStream;
import java.util.Arrays;
import java.util.List;
import java.util.regex.Matcher;
import org.apache.logging.log4j.Level;
import com.google.common.base.Throwables;
import com.google.common.collect.Lists;
import cpw.mods.fml.common.FMLLog;
import cpw.mods.fml.common.LoaderException;
import cpw.mods.fml.common.MetadataCollection;
import cpw.mods.fml.common.ModContainer;
import cpw.mods.fml.common.ModContainerFactory;
import cpw.mods.fml.common.discovery.asm.ASMModParser;
public class DirectoryDiscoverer implements ITypeDiscoverer
{
private class ClassFilter implements FileFilter
{
@Override
public boolean accept(File file)
{
return (file.isFile() && classFile.matcher(file.getName()).find()) || file.isDirectory();
}
}
private ASMDataTable table;
@Override
public List<ModContainer> discover(ModCandidate candidate, ASMDataTable table)
{
this.table = table;
List<ModContainer> found = Lists.newArrayList();
FMLLog.fine("Examining directory %s for potential mods", candidate.getModContainer().getName());
exploreFileSystem("", candidate.getModContainer(), found, candidate, null);
for (ModContainer mc : found)
{
table.addContainer(mc);
}
return found;
}
public void exploreFileSystem(String path, File modDir, List<ModContainer> harvestedMods, ModCandidate candidate, MetadataCollection mc)
{
if (path.length() == 0)
{
File metadata = new File(modDir, "mcmod.info");
try
{
FileInputStream fis = new FileInputStream(metadata);
mc = MetadataCollection.from(fis,modDir.getName());
fis.close();
FMLLog.fine("Found an mcmod.info file in directory %s", modDir.getName());
}
catch (Exception e)
{
mc = MetadataCollection.from(null,"");
FMLLog.fine("No mcmod.info file found in directory %s", modDir.getName());
}
}
File[] content = modDir.listFiles(new ClassFilter());
// Always sort our content
Arrays.sort(content);
for (File file : content)
{
if (file.isDirectory())
{
FMLLog.finer("Recursing into package %s", path + file.getName());
exploreFileSystem(path + file.getName() + ".", file, harvestedMods, candidate, mc);
continue;
}
Matcher match = classFile.matcher(file.getName());
if (match.matches())
{
ASMModParser modParser = null;
try
{
FileInputStream fis = new FileInputStream(file);
modParser = new ASMModParser(fis);
fis.close();
candidate.addClassEntry(path+file.getName());
}
catch (LoaderException e)
{
FMLLog.log(Level.ERROR, e, "There was a problem reading the file %s - probably this is a corrupt file", file.getPath());
throw e;
}
catch (Exception e)
{
Throwables.propagate(e);
}
modParser.validate();
modParser.sendToTable(table, candidate);
ModContainer container = ModContainerFactory.instance().build(modParser, candidate.getModContainer(), candidate);
if (container!=null)
{
harvestedMods.add(container);
container.bindMetadata(mc);
}
}
}
}
}