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1 | 1 | # hg.py - repository classes for mercurial |
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2 | 2 | # |
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3 | 3 | # Copyright 2005 Matt Mackall <mpm@selenic.com> |
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4 | 4 | # |
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5 | 5 | # This software may be used and distributed according to the terms |
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6 | 6 | # of the GNU General Public License, incorporated herein by reference. |
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7 | 7 | |
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8 | 8 | from node import * |
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9 | 9 | from repo import * |
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10 | 10 | from demandload import * |
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11 | 11 | from i18n import gettext as _ |
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12 | 12 | demandload(globals(), "localrepo bundlerepo httprepo sshrepo statichttprepo") |
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13 | 13 | demandload(globals(), "errno lock os shutil util") |
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14 | 14 | |
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15 | 15 | def _local(path): |
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16 | 16 | return (os.path.isfile(path and util.drop_scheme('file', path)) and |
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17 | 17 | bundlerepo or localrepo) |
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18 | 18 | |
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19 | 19 | schemes = { |
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20 | 20 | 'bundle': bundlerepo, |
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21 | 21 | 'file': _local, |
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22 | 22 | 'hg': httprepo, |
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23 | 23 | 'http': httprepo, |
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24 | 24 | 'https': httprepo, |
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25 | 25 | 'old-http': statichttprepo, |
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26 | 26 | 'ssh': sshrepo, |
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27 | 27 | 'static-http': statichttprepo, |
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28 | 28 | } |
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29 | 29 | |
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30 | 30 | def _lookup(path): |
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31 | 31 | scheme = 'file' |
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32 | 32 | if path: |
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33 | 33 | c = path.find(':') |
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34 | 34 | if c > 0: |
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35 | 35 | scheme = path[:c] |
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36 | 36 | thing = schemes.get(scheme) or schemes['file'] |
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37 | 37 | try: |
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38 | 38 | return thing(path) |
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39 | 39 | except TypeError: |
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40 | 40 | return thing |
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41 | 41 | |
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42 | 42 | def islocal(repo): |
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43 | 43 | '''return true if repo or path is local''' |
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44 | 44 | if isinstance(repo, str): |
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45 | 45 | try: |
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46 | 46 | return _lookup(repo).islocal(repo) |
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47 | 47 | except AttributeError: |
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48 | 48 | return False |
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49 | 49 | return repo.local() |
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50 | 50 | |
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51 | 51 | def repository(ui, path=None, create=False): |
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52 | """return a repository object for the specified path""" | |
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52 | 53 | return _lookup(path).instance(ui, path, create) |
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53 | 54 | |
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54 | 55 | def defaultdest(source): |
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55 | 56 | '''return default destination of clone if none is given''' |
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56 | 57 | return os.path.basename(os.path.normpath(source)) |
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57 | ||
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58 | ||
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58 | 59 | def clone(ui, source, dest=None, pull=False, rev=None, update=True, |
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59 | 60 | stream=False): |
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60 | 61 | """Make a copy of an existing repository. |
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61 | 62 | |
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62 | 63 | Create a copy of an existing repository in a new directory. The |
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63 | 64 | source and destination are URLs, as passed to the repository |
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64 | 65 | function. Returns a pair of repository objects, the source and |
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65 | 66 | newly created destination. |
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66 | 67 | |
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67 | 68 | The location of the source is added to the new repository's |
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68 | 69 | .hg/hgrc file, as the default to be used for future pulls and |
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69 | 70 | pushes. |
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70 | 71 | |
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71 | 72 | If an exception is raised, the partly cloned/updated destination |
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72 | 73 | repository will be deleted. |
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73 | 74 | |
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74 | 75 | Arguments: |
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75 | 76 | |
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76 | 77 | source: repository object or URL |
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77 | 78 | |
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78 | 79 | dest: URL of destination repository to create (defaults to base |
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79 | 80 | name of source repository) |
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80 | 81 | |
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81 | 82 | pull: always pull from source repository, even in local case |
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82 | 83 | |
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83 | 84 | stream: stream raw data uncompressed from repository (fast over |
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84 | 85 | LAN, slow over WAN) |
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85 | 86 | |
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86 | 87 | rev: revision to clone up to (implies pull=True) |
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87 | 88 | |
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88 | 89 | update: update working directory after clone completes, if |
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89 | 90 | destination is local repository |
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90 | 91 | """ |
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91 | 92 | if isinstance(source, str): |
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92 | 93 | src_repo = repository(ui, source) |
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93 | 94 | else: |
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94 | 95 | src_repo = source |
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95 | 96 | source = src_repo.url() |
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96 | 97 | |
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97 | 98 | if dest is None: |
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98 | 99 | dest = defaultdest(source) |
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99 | 100 | |
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100 | 101 | def localpath(path): |
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101 | 102 | if path.startswith('file://'): |
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102 | 103 | return path[7:] |
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103 | 104 | if path.startswith('file:'): |
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104 | 105 | return path[5:] |
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105 | 106 | return path |
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106 | 107 | |
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107 | 108 | dest = localpath(dest) |
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108 | 109 | source = localpath(source) |
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109 | 110 | |
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110 | 111 | if os.path.exists(dest): |
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111 | 112 | raise util.Abort(_("destination '%s' already exists"), dest) |
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112 | 113 | |
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113 | 114 | class DirCleanup(object): |
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114 | 115 | def __init__(self, dir_): |
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115 | 116 | self.rmtree = shutil.rmtree |
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116 | 117 | self.dir_ = dir_ |
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117 | 118 | def close(self): |
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118 | 119 | self.dir_ = None |
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119 | 120 | def __del__(self): |
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120 | 121 | if self.dir_: |
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121 | 122 | self.rmtree(self.dir_, True) |
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122 | 123 | |
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123 | 124 | dest_repo = None |
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124 | 125 | try: |
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125 | 126 | dest_repo = repository(ui, dest) |
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126 | 127 | raise util.Abort(_("destination '%s' already exists." % dest)) |
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127 | 128 | except RepoError: |
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128 | 129 | dest_repo = repository(ui, dest, create=True) |
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129 | 130 | |
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130 | 131 | dest_path = None |
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131 | 132 | dir_cleanup = None |
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132 | 133 | if dest_repo.local(): |
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133 | 134 | dest_path = os.path.realpath(dest_repo.root) |
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134 | 135 | dir_cleanup = DirCleanup(dest_path) |
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135 | 136 | |
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136 | 137 | abspath = source |
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137 | 138 | copy = False |
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138 | 139 | if src_repo.local() and dest_repo.local(): |
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139 | 140 | abspath = os.path.abspath(source) |
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140 | 141 | copy = not pull and not rev |
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141 | 142 | |
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142 | 143 | src_lock, dest_lock = None, None |
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143 | 144 | if copy: |
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144 | 145 | try: |
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145 | 146 | # we use a lock here because if we race with commit, we |
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146 | 147 | # can end up with extra data in the cloned revlogs that's |
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147 | 148 | # not pointed to by changesets, thus causing verify to |
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148 | 149 | # fail |
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149 | 150 | src_lock = src_repo.lock() |
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150 | 151 | except lock.LockException: |
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151 | 152 | copy = False |
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152 | 153 | |
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153 | 154 | if copy: |
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154 | 155 | # we lock here to avoid premature writing to the target |
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155 | 156 | dest_lock = lock.lock(os.path.join(dest_path, ".hg", "lock")) |
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156 | 157 | |
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157 | 158 | # we need to remove the (empty) data dir in dest so copyfiles |
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158 | 159 | # can do its work |
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159 | 160 | os.rmdir(os.path.join(dest_path, ".hg", "data")) |
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160 | 161 | files = "data 00manifest.d 00manifest.i 00changelog.d 00changelog.i" |
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161 | 162 | for f in files.split(): |
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162 | 163 | src = os.path.join(source, ".hg", f) |
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163 | 164 | dst = os.path.join(dest_path, ".hg", f) |
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164 | 165 | try: |
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165 | 166 | util.copyfiles(src, dst) |
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166 | 167 | except OSError, inst: |
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167 | 168 | if inst.errno != errno.ENOENT: |
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168 | 169 | raise |
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169 | 170 | |
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170 | 171 | # we need to re-init the repo after manually copying the data |
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171 | 172 | # into it |
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172 | 173 | dest_repo = repository(ui, dest) |
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173 | 174 | |
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174 | 175 | else: |
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175 | 176 | revs = None |
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176 | 177 | if rev: |
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177 | 178 | if not src_repo.local(): |
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178 | 179 | raise util.Abort(_("clone by revision not supported yet " |
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179 | 180 | "for remote repositories")) |
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180 | 181 | revs = [src_repo.lookup(r) for r in rev] |
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181 | 182 | |
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182 | 183 | if dest_repo.local(): |
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183 | 184 | dest_repo.clone(src_repo, heads=revs, stream=stream) |
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184 | 185 | elif src_repo.local(): |
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185 | 186 | src_repo.push(dest_repo, revs=revs) |
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186 | 187 | else: |
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187 | 188 | raise util.Abort(_("clone from remote to remote not supported")) |
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188 | 189 | |
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189 | 190 | if src_lock: |
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190 | 191 | src_lock.release() |
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191 | 192 | |
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192 | 193 | if dest_repo.local(): |
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193 | 194 | fp = dest_repo.opener("hgrc", "w", text=True) |
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194 | 195 | fp.write("[paths]\n") |
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195 | 196 | fp.write("default = %s\n" % abspath) |
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196 | 197 | fp.close() |
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197 | 198 | |
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198 | 199 | if dest_lock: |
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199 | 200 | dest_lock.release() |
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200 | 201 | |
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201 | 202 | if update: |
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202 | 203 | dest_repo.update(dest_repo.changelog.tip()) |
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203 | 204 | if dir_cleanup: |
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204 | 205 | dir_cleanup.close() |
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205 | 206 | |
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206 | 207 | return src_repo, dest_repo |
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