--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hg4j-cli/src/main/java/org/tmatesoft/hg/console/Log.java	Tue May 10 10:52:53 2011 +0200
@@ -0,0 +1,122 @@
+/*
+ * 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 java.util.List;
+
+import org.tmatesoft.hg.core.HgLogCommand;
+import org.tmatesoft.hg.core.HgLogCommand.FileRevision;
+import org.tmatesoft.hg.repo.HgDataFile;
+import org.tmatesoft.hg.repo.HgRepository;
+
+
+/**
+ * @author Artem Tikhomirov
+ * @author TMate Software Ltd.
+ */
+public class Log {
+
+	// -agentlib:hprof=heap=sites,depth=10,etc might be handy to debug speed/memory issues
+	
+	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;
+		}
+		final Dump dump = new Dump(hgRepo);
+		dump.complete(cmdLineOpts.getBoolean("--debug"));
+		dump.verbose(cmdLineOpts.getBoolean("-v", "--verbose"));
+		final boolean reverseOrder = true;
+		dump.reversed(reverseOrder);
+		HgLogCommand cmd = new HgLogCommand(hgRepo);
+		for (String u : cmdLineOpts.getList("-u", "--user")) {
+			cmd.user(u);
+		}
+		for (String b : cmdLineOpts.getList("-b", "--branches")) {
+			cmd.branch(b);
+		}
+		int limit = cmdLineOpts.getSingleInt(-1, "-l", "--limit");
+		if (limit != -1) {
+			cmd.limit(limit);
+		}
+		List<String> files = cmdLineOpts.getList("");
+		final long start = System.currentTimeMillis();
+		if (files.isEmpty()) {
+			if (limit == -1) {
+				// no revisions and no limit
+				cmd.execute(dump);
+			} else {
+				// in fact, external (to dump inspector) --limit processing yelds incorrect results when other args
+				// e.g. -u or -b are used (i.e. with -u shall give <limit> csets with user, not check last <limit> csets for user 
+				int[] r = new int[] { 0, hgRepo.getChangelog().getRevisionCount() };
+				if (fixRange(r, reverseOrder, limit) == 0) {
+					System.out.println("No changes");
+					return;
+				}
+				cmd.range(r[0], r[1]).execute(dump);
+			}
+			dump.done();
+		} else {
+			for (String fname : files) {
+				HgDataFile f1 = hgRepo.getFileNode(fname);
+				System.out.println("History of the file: " + f1.getPath());
+				if (limit == -1) {
+					cmd.file(f1.getPath(), true).execute(dump);
+				} else {
+					int[] r = new int[] { 0, f1.getRevisionCount() };
+					if (fixRange(r, reverseOrder, limit) == 0) {
+						System.out.println("No changes");
+						continue;
+					}
+					cmd.range(r[0], r[1]).file(f1.getPath(), true).execute(dump);
+				}
+				dump.done();
+			}
+		}
+//		cmd = null;
+		System.out.println("Total time:" + (System.currentTimeMillis() - start));
+//		Main.force_gc();
+	}
+	
+	private static int fixRange(int[] start_end, boolean reverse, int limit) {
+		assert start_end.length == 2;
+		if (limit < start_end[1]) {
+			if (reverse) {
+				// adjust left boundary of the range
+				start_end[0] = start_end[1] - limit;
+			} else {
+				start_end[1] = limit; // adjust right boundary
+			}
+		}
+		int rv = start_end[1] - start_end[0];
+		start_end[1]--; // range needs index, not length
+		return rv;
+	}
+
+	private static final class Dump extends ChangesetDumpHandler implements HgLogCommand.FileHistoryHandler {
+
+		public Dump(HgRepository hgRepo) {
+			super(hgRepo);
+		}
+		
+		public void copy(FileRevision from, FileRevision to) {
+			System.out.printf("Got notified that %s(%s) was originally known as %s(%s)\n", to.getPath(), to.getRevision(), from.getPath(), from.getRevision());
+		}
+	}
+}