Mercurial > jhg
view src/org/tmatesoft/hg/internal/RevlogDump.java @ 136:947bf231acbb
Strip off comments in config file
author | Artem Tikhomirov <tikhomirov.artem@gmail.com> |
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date | Wed, 16 Feb 2011 22:08:58 +0100 (2011-02-16) |
parents | a3a2e5deb320 |
children | d5268ca7715b |
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/* * 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.internal; import java.io.BufferedInputStream; import java.io.DataInput; import java.io.DataInputStream; import java.io.File; import java.io.FileInputStream; import java.math.BigInteger; import java.util.zip.Inflater; /** * Utility to test/debug/troubleshoot * * @author Artem Tikhomirov * @author TMate Software Ltd. */ public class RevlogDump { /** * Takes 3 command line arguments - * repository path, * path to index file (i.e. store/data/hello.c.i) in the repository (relative) * and "dumpData" whether to print actual content or just revlog headers */ public static void main(String[] args) throws Exception { String repo = "/temp/hg/hello/.hg/"; String filename = "store/00changelog.i"; // String filename = "store/data/hello.c.i"; // String filename = "store/data/docs/readme.i"; boolean dumpData = true; if (args.length > 1) { repo = args[0]; filename = args[1]; dumpData = args.length > 2 ? "dumpData".equals(args[2]) : false; } // DataInputStream dis = new DataInputStream(new BufferedInputStream(new FileInputStream(new File(repo + filename)))); DataInput di = dis; dis.mark(10); int versionField = di.readInt(); dis.reset(); final int INLINEDATA = 1 << 16; boolean inlineData = (versionField & INLINEDATA) != 0; System.out.printf("%#8x, inline: %b\n", versionField, inlineData); System.out.println("Index Offset Flags Packed Actual Base Rev Link Rev Parent1 Parent2 nodeid"); int entryCount = 0; while (dis.available() > 0) { long l = di.readLong(); long offset = l >>> 16; int flags = (int) (l & 0X0FFFF); int compressedLen = di.readInt(); int actualLen = di.readInt(); int baseRevision = di.readInt(); int linkRevision = di.readInt(); int parent1Revision = di.readInt(); int parent2Revision = di.readInt(); byte[] buf = new byte[32]; di.readFully(buf, 12, 20); dis.skip(12); System.out.printf("%4d:%14d %6X %10d %10d %10d %10d %8d %8d %040x\n", entryCount, offset, flags, compressedLen, actualLen, baseRevision, linkRevision, parent1Revision, parent2Revision, new BigInteger(buf)); if (inlineData) { String resultString; byte[] data = new byte[compressedLen]; di.readFully(data); if (data[0] == 0x78 /* 'x' */) { Inflater zlib = new Inflater(); zlib.setInput(data, 0, compressedLen); byte[] result = new byte[actualLen*2]; int resultLen = zlib.inflate(result); zlib.end(); resultString = new String(result, 0, resultLen, "UTF-8"); } else if (data[0] == 0x75 /* 'u' */) { resultString = new String(data, 1, data.length - 1, "UTF-8"); } else { resultString = new String(data); } if (dumpData) { System.out.println(resultString); } entryCount++; } } dis.close(); // } }