--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hg4j-cli/src/main/java/org/tmatesoft/hg/console/Cat.java	Tue May 10 10:52:53 2011 +0200
@@ -0,0 +1,73 @@
+/*
+ * 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 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);
+		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;
+		}
+	}
+}