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annotate src/com/tmate/hgkit/console/Main.java @ 29:6cce719bbb62

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Collector for nodes and their parents
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Tue, 11 Jan 2011 04:37:29 +0100
parents 603806cd2dc6
children b01500fe2604
rev   line source
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1 /*
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2 * Copyright (c) 2010, 2011 Artem Tikhomirov
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3 */
0
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4 package com.tmate.hgkit.console;
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5
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6 import java.io.BufferedInputStream;
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7 import java.io.DataInput;
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8 import java.io.DataInputStream;
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9 import java.io.File;
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10 import java.io.FileInputStream;
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11 import java.math.BigInteger;
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12 import java.util.LinkedList;
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13 import java.util.zip.Inflater;
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14
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15 import com.tmate.hgkit.ll.Changeset;
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16
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17 /**
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18 *
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19 * @author artem
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20 */
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21 public class Main {
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22
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23 public static void main(String[] args) throws Exception {
22
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24 // String repo = "/temp/hg/hello/.hg/";
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571e1b2cc3f7 Query file for its parents. Demo of recently added ignore and digest support from within cat cmd
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25 // String filename = "store/00changelog.i";
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26 // String filename = "store/data/hello.c.i";
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27 // String filename = "store/data/docs/readme.i";
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28 String repo = "/eclipse-3.7/ws.hg/com.tmate.hgkit/.hg/";
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29 // String filename = "store/data/design.txt.i";
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30 String filename = "store/data/src/com/tmate/hgkit/ll/_revlog_stream.java.i";
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31 //
0
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32 LinkedList<Changeset> changelog = new LinkedList<Changeset>();
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33 //
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34 DataInputStream dis = new DataInputStream(new BufferedInputStream(new FileInputStream(new File(repo + filename))));
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35 DataInput di = dis;
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36 dis.mark(10);
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37 int versionField = di.readInt();
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38 dis.reset();
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39 final int INLINEDATA = 1 << 16;
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40
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41 boolean inlineData = (versionField & INLINEDATA) != 0;
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42 System.out.printf("%#8x, inline: %b\n", versionField, inlineData);
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43 System.out.println("\tOffset\tFlags\tPacked\t Actual\tBase Rev Link Rev\tParent1\tParent2\tnodeid");
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44 int entryCount = 0;
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45 while (dis.available() > 0) {
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46 long l = di.readLong();
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47 long offset = l >>> 16;
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48 int flags = (int) (l & 0X0FFFF);
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49 int compressedLen = di.readInt();
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50 int actualLen = di.readInt();
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51 int baseRevision = di.readInt();
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52 int linkRevision = di.readInt();
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53 int parent1Revision = di.readInt();
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54 int parent2Revision = di.readInt();
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55 byte[] buf = new byte[32];
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56 di.readFully(buf, 12, 20);
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57 dis.skip(12);
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58 System.out.printf("%14d %6X %10d %10d %10d %10d %8d %8d %040x\n", offset, flags, compressedLen, actualLen, baseRevision, linkRevision, parent1Revision, parent2Revision, new BigInteger(buf));
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59 if (inlineData) {
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60 String resultString;
0
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61 byte[] data = new byte[compressedLen];
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62 di.readFully(data);
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63 if (data[0] == 0x78 /* 'x' */) {
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64 Inflater zlib = new Inflater();
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65 zlib.setInput(data, 0, compressedLen);
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66 byte[] result = new byte[actualLen*2];
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67 int resultLen = zlib.inflate(result);
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68 zlib.end();
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69 resultString = new String(result, 0, resultLen, "UTF-8");
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70 } else if (data[0] == 0x75 /* 'u' */) {
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71 resultString = new String(data, 1, data.length - 1, "UTF-8");
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72 } else {
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73 resultString = new String(data);
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74 }
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75 System.out.println(resultString);
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76 }
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77 }
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78 dis.close();
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79 //
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80 System.out.println("\n\n");
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81 System.out.println("====================>");
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82 for (Changeset cset : changelog) {
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83 System.out.println(">");
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84 cset.dump();
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85 System.out.println("<");
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86 }
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87 }
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88 }