/*
* Copyright (c) 2010-2011 TMate Software Ltd
*
* 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; version 2 of the License.
*
* 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.
*
* For information on how to redistribute this software under
* the terms of a license other than GNU General Public License
* contact TMate Software at support@hg4j.com
*/
package org.tmatesoft.hg.console;
import static org.tmatesoft.hg.repo.HgRepository.TIP;
import java.io.IOException;
import java.io.OutputStream;
import java.nio.ByteBuffer;
import java.util.Collections;
import org.tmatesoft.hg.repo.HgDataFile;
import org.tmatesoft.hg.repo.HgRepository;
import org.tmatesoft.hg.util.ByteChannel;
/**
* @author Artem Tikhomirov
* @author TMate Software Ltd.
*/
public class Cat {
public static void main(String[] args) throws Exception {
Options cmdLineOpts = Options.parse(args, Collections.<String>emptySet());
HgRepository hgRepo = cmdLineOpts.findRepository();
if (hgRepo.isInvalid()) {
System.err.printf("Can't find repository in: %s\n", hgRepo.getLocation());
return;
}
int rev = cmdLineOpts.getSingleInt(TIP, "-r", "--rev");
OutputStreamChannel out = new OutputStreamChannel(System.out);
for (String fname : cmdLineOpts.getList("")) {
System.out.println(fname);
HgDataFile fn = hgRepo.getFileNode(fname);
if (fn.exists()) {
fn.contentWithFilters(rev, out);
System.out.println();
} else {
System.out.printf("%s not found!\n", fname);
}
}
}
private static class OutputStreamChannel implements ByteChannel {
private final OutputStream stream;
public OutputStreamChannel(OutputStream out) {
stream = out;
}
public int write(ByteBuffer buffer) throws IOException {
int count = buffer.remaining();
while(buffer.hasRemaining()) {
stream.write(buffer.get());
}
return count;
}
}
}