Mercurial > hg4j

annotate src/com/tmate/hgkit/fs/RepositoryLookup.java @ 159:f5aed108754e wrap-data-access

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Approach with DataAccess instead of plain byte[] was merged into default branch
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Wed, 09 Mar 2011 13:28:02 +0100
parents 26e3eeaa3962
children
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1 /**
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2 * Copyright (c) 2010 Artem Tikhomirov
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3 */
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4 package com.tmate.hgkit.fs;
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5
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6 import java.io.File;
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7 import java.util.ArrayList;
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8 import java.util.Arrays;
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9 import java.util.Collections;
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10 import java.util.Iterator;
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11 import java.util.LinkedHashSet;
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12 import java.util.LinkedList;
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13 import java.util.List;
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14 import java.util.Set;
2
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15
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16 import com.tmate.hgkit.ll.HgRepository;
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17 import com.tmate.hgkit.ll.LocalHgRepo;
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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 RepositoryLookup {
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23
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24 public HgRepository detect(Options opts) throws Exception {
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25 if (opts.repoLocation != null) {
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26 return detect(opts.repoLocation);
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27 }
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28 return detectFromWorkingDir();
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29 }
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30
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31 public HgRepository detect(String[] commandLineArgs) throws Exception {
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32 return detect(Options.parse(commandLineArgs));
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33 }
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34
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35 public HgRepository detectFromWorkingDir() throws Exception {
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36 return detect(System.getProperty("user.dir"));
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37 }
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38
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39 public HgRepository detect(String location) throws Exception /*FIXME Exception type, RepoInitException? */ {
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40 File dir = new File(location);
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41 File repository;
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42 do {
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43 repository = new File(dir, ".hg");
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44 if (repository.exists() && repository.isDirectory()) {
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45 break;
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46 }
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47 repository = null;
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48 dir = dir.getParentFile();
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49
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50 } while(dir != null);
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51 if (repository == null) {
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52 return new LocalHgRepo(location);
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53 }
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54 return new LocalHgRepo(repository);
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55 }
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56
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57 public static class Options {
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58
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59 public String repoLocation;
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60 public List<String> files;
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61 public int limit = -1;
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62 public Set<String> users;
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63 public Set<String> branches;
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64
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65 public static Options parse(String[] commandLineArgs) {
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66 Options rv = new Options();
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67 List<String> args = Arrays.asList(commandLineArgs);
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68 LinkedList<String> files = new LinkedList<String>();
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69 for (Iterator<String> it = args.iterator(); it.hasNext(); ) {
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70 String arg = it.next();
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71 if (arg.charAt(0) == '-') {
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72 // option
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73 if (arg.length() == 1) {
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74 throw new IllegalArgumentException("Bad option: -");
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75 }
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76 switch ((int) arg.charAt(1)) {
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77 case (int) 'R' : {
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78 if (! it.hasNext()) {
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79 throw new IllegalArgumentException("Need repo location");
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80 }
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81 rv.repoLocation = it.next();
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82 break;
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83 }
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84 case (int) 'l' : {
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85 if (!it.hasNext()) {
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86 throw new IllegalArgumentException();
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87 }
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88 rv.limit = Integer.parseInt(it.next());
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89 break;
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90 }
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91 case (int) 'u' : {
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92 if (rv.users == null) {
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93 rv.users = new LinkedHashSet<String>();
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94 }
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95 rv.users.add(it.next());
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96 break;
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97 }
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98 case (int) 'b' : {
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99 if (rv.branches == null) {
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100 rv.branches = new LinkedHashSet<String>();
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101 }
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102 rv.branches.add(it.next());
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103 break;
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104 }
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105 }
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106 } else {
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107 // filename
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108 files.add(arg);
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109 }
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110 }
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111 if (!files.isEmpty()) {
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112 rv.files = new ArrayList<String>(files);
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113 } else {
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114 rv.files = Collections.emptyList();
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115 }
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116 return rv;
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117 }
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118 }
2
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119 }