Mercurial > hg4j

annotate src/com/tmate/hgkit/console/Main.java @ 51:9429c7bd1920 wrap-data-access

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Try DataAccess to reach revision data instead of plain byte arrays
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Sun, 16 Jan 2011 01:20:26 +0100
parents b01500fe2604
children
rev   line source
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1 /*
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2 * Copyright (c) 2010, 2011 Artem Tikhomirov
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3 */
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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.Locale;
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14 import java.util.zip.Inflater;
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15
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16 import com.tmate.hgkit.ll.Changeset;
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17
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18 /**
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19 *
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20 * @author artem
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21 */
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22 public class Main {
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23
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24 public static void main(String[] args) throws Exception {
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25 String repo = "/temp/hg/hello/.hg/";
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26 String filename = "store/00changelog.i";
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27 // String filename = "store/data/hello.c.i";
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28 // String filename = "store/data/docs/readme.i";
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29 // String repo = "/eclipse-3.7/ws.hg/com.tmate.hgkit/.hg/";
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30 // String filename = "store/data/design.txt.i";
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31 // String filename = "store/data/src/com/tmate/hgkit/ll/_revlog_stream.java.i";
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32 //
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33 LinkedList<Changeset> changelog = new LinkedList<Changeset>();
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34 //
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35 DataInputStream dis = new DataInputStream(new BufferedInputStream(new FileInputStream(new File(repo + filename))));
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36 DataInput di = dis;
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37 dis.mark(10);
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38 int versionField = di.readInt();
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39 dis.reset();
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40 final int INLINEDATA = 1 << 16;
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41
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42 boolean inlineData = (versionField & INLINEDATA) != 0;
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43 System.out.printf("%#8x, inline: %b\n", versionField, inlineData);
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44 System.out.println("\tOffset\tFlags\tPacked\t Actual\tBase Rev Link Rev\tParent1\tParent2\tnodeid");
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45 int entryCount = 0;
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46 while (dis.available() > 0) {
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47 long l = di.readLong();
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48 long offset = l >>> 16;
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49 int flags = (int) (l & 0X0FFFF);
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50 int compressedLen = di.readInt();
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51 int actualLen = di.readInt();
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52 int baseRevision = di.readInt();
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53 int linkRevision = di.readInt();
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54 int parent1Revision = di.readInt();
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55 int parent2Revision = di.readInt();
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56 byte[] buf = new byte[32];
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57 di.readFully(buf, 12, 20);
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58 dis.skip(12);
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59 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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60 if (inlineData) {
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61 String resultString;
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62 byte[] data = new byte[compressedLen];
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63 di.readFully(data);
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64 if (data[0] == 0x78 /* 'x' */) {
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65 Inflater zlib = new Inflater();
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66 zlib.setInput(data, 0, compressedLen);
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67 byte[] result = new byte[actualLen*2];
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68 int resultLen = zlib.inflate(result);
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69 zlib.end();
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70 resultString = new String(result, 0, resultLen, "UTF-8");
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71 } else if (data[0] == 0x75 /* 'u' */) {
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72 resultString = new String(data, 1, data.length - 1, "UTF-8");
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73 } else {
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74 resultString = new String(data);
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75 }
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76 System.out.println(resultString);
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77 }
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78 }
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79 dis.close();
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80 //
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81 System.out.println("\n\n");
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82 System.out.println("====================>");
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83 for (Changeset cset : changelog) {
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84 System.out.println(">");
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85 System.out.println("User: " + cset.user());
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86 System.out.println("Comment: " + cset.comment());
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87 System.out.println("Manifest: " + cset.manifest());
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88 System.out.printf(Locale.US, "Date: %ta %<tb %<td %<tH:%<tM:%<tS %<tY %<tz\n", cset.date());
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89 System.out.println("Files: " + cset.files().size());
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90 if (cset.extras() != null) {
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91 System.out.println("Extra: " + cset.extras());
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92 }
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93 for (String s : cset.files()) {
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94 System.out.print('\t');
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95 System.out.println(s);
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96 }
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97 System.out.println("<");
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98 }
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99 }
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100 }