tikhomirov@22: /*
tikhomirov@22:  * Copyright (c) 2010, 2011 Artem Tikhomirov 
tikhomirov@22:  */
tikhomirov@0: package com.tmate.hgkit.console;
tikhomirov@0: 
tikhomirov@0: import java.io.BufferedInputStream;
tikhomirov@0: import java.io.DataInput;
tikhomirov@0: import java.io.DataInputStream;
tikhomirov@0: import java.io.File;
tikhomirov@0: import java.io.FileInputStream;
tikhomirov@0: import java.math.BigInteger;
tikhomirov@0: import java.util.LinkedList;
tikhomirov@47: import java.util.Locale;
tikhomirov@0: import java.util.zip.Inflater;
tikhomirov@0: 
tikhomirov@0: import com.tmate.hgkit.ll.Changeset;
tikhomirov@0: 
tikhomirov@0: /**
tikhomirov@0:  * 
tikhomirov@0:  * @author artem
tikhomirov@0:  */
tikhomirov@0: public class Main {
tikhomirov@0: 
tikhomirov@0: 	public static void main(String[] args) throws Exception {
tikhomirov@51: 		String repo = "/temp/hg/hello/.hg/";
tikhomirov@51: 		String filename = "store/00changelog.i";
tikhomirov@22: //		String filename = "store/data/hello.c.i";
tikhomirov@4: //		String filename = "store/data/docs/readme.i";
tikhomirov@51: //		String repo = "/eclipse-3.7/ws.hg/com.tmate.hgkit/.hg/";
tikhomirov@22: //		String filename = "store/data/design.txt.i";
tikhomirov@51: //		String filename = "store/data/src/com/tmate/hgkit/ll/_revlog_stream.java.i";
tikhomirov@22: 		//
tikhomirov@0: 		LinkedList<Changeset> changelog = new LinkedList<Changeset>();
tikhomirov@0: 		//
tikhomirov@22: 		DataInputStream dis = new DataInputStream(new BufferedInputStream(new FileInputStream(new File(repo + filename))));
tikhomirov@0: 		DataInput di = dis;
tikhomirov@0: 		dis.mark(10);
tikhomirov@0: 		int versionField = di.readInt();
tikhomirov@0: 		dis.reset();
tikhomirov@0: 		final int INLINEDATA = 1 << 16;
tikhomirov@0: 		
tikhomirov@0: 		boolean inlineData = (versionField & INLINEDATA) != 0;
tikhomirov@0: 		System.out.printf("%#8x, inline: %b\n", versionField, inlineData);
tikhomirov@0: 		System.out.println("\tOffset\tFlags\tPacked\t  Actual\tBase Rev    Link Rev\tParent1\tParent2\tnodeid");
tikhomirov@0: 		int entryCount = 0;
tikhomirov@0: 		while (dis.available() > 0) {
tikhomirov@0: 			long l = di.readLong();
tikhomirov@0: 			long offset = l >>> 16;
tikhomirov@0: 			int flags = (int) (l & 0X0FFFF);
tikhomirov@0: 			int compressedLen = di.readInt();
tikhomirov@0: 			int actualLen = di.readInt();
tikhomirov@0: 			int baseRevision = di.readInt();
tikhomirov@0: 			int linkRevision = di.readInt();
tikhomirov@0: 			int parent1Revision = di.readInt();
tikhomirov@0: 			int parent2Revision = di.readInt();
tikhomirov@0: 			byte[] buf = new byte[32];
tikhomirov@0: 			di.readFully(buf, 12, 20);
tikhomirov@0: 			dis.skip(12);
tikhomirov@0: 			System.out.printf("%14d %6X %10d %10d %10d %10d %8d %8d     %040x\n", offset, flags, compressedLen, actualLen, baseRevision, linkRevision, parent1Revision, parent2Revision, new BigInteger(buf));
tikhomirov@0: 			if (inlineData) {
tikhomirov@3: 				String resultString;
tikhomirov@0: 				byte[] data = new byte[compressedLen];
tikhomirov@0: 				di.readFully(data);
tikhomirov@0: 				if (data[0] == 0x78 /* 'x' */) {
tikhomirov@0: 					Inflater zlib = new Inflater();
tikhomirov@0: 					zlib.setInput(data, 0, compressedLen);
tikhomirov@0: 					byte[] result = new byte[actualLen*2];
tikhomirov@0: 					int resultLen = zlib.inflate(result);
tikhomirov@0: 					zlib.end();
tikhomirov@0: 					resultString = new String(result, 0, resultLen, "UTF-8");
tikhomirov@3: 				} else if (data[0] == 0x75 /* 'u' */) {
tikhomirov@3: 					resultString = new String(data, 1, data.length - 1, "UTF-8");
tikhomirov@3: 				} else {
tikhomirov@3: 					resultString = new String(data);
tikhomirov@3: 				}
tikhomirov@3: 				System.out.println(resultString);
tikhomirov@0: 			}
tikhomirov@0: 		}
tikhomirov@0: 		dis.close();
tikhomirov@0: 		//
tikhomirov@0: 		System.out.println("\n\n");
tikhomirov@0: 		System.out.println("====================>");
tikhomirov@0: 		for (Changeset cset : changelog) {
tikhomirov@0: 			System.out.println(">");
tikhomirov@47: 			System.out.println("User: " + cset.user());
tikhomirov@47: 			System.out.println("Comment: " + cset.comment());
tikhomirov@47: 			System.out.println("Manifest: " + cset.manifest());
tikhomirov@47: 			System.out.printf(Locale.US, "Date: %ta %<tb %<td %<tH:%<tM:%<tS %<tY %<tz\n", cset.date());
tikhomirov@47: 			System.out.println("Files: " + cset.files().size());
tikhomirov@47: 			if (cset.extras() != null) {
tikhomirov@47: 				System.out.println("Extra: " + cset.extras());
tikhomirov@47: 			}
tikhomirov@47: 			for (String s : cset.files()) {
tikhomirov@47: 				System.out.print('\t');
tikhomirov@47: 					System.out.println(s);
tikhomirov@47: 			}
tikhomirov@0: 			System.out.println("<");
tikhomirov@0: 		}
tikhomirov@0: 	}
tikhomirov@0: }