Mercurial > hg > mercurial-crew-with-dirclash
annotate mercurial/hg.py @ 2719:532809ba1db5
hg.py: add islocal() and defaultdest() functions, refactor
islocal tells if a repo or url is local.
defaultdest returns default path for clone if explicit path not given.
clone can now take repo or url as source
author | Vadim Gelfer <vadim.gelfer@gmail.com> |
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date | Fri, 28 Jul 2006 10:46:25 -0700 |
parents | 8f564a875b50 |
children | 400a4a502001 |
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1 # hg.py - repository classes for mercurial |
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2 # |
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3 # Copyright 2005 Matt Mackall <mpm@selenic.com> |
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4 # |
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5 # This software may be used and distributed according to the terms |
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6 # of the GNU General Public License, incorporated herein by reference. |
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7 |
1089 | 8 from node import * |
9 from repo import * | |
262 | 10 from demandload import * |
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11 from i18n import gettext as _ |
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12 demandload(globals(), "localrepo bundlerepo httprepo sshrepo statichttprepo") |
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13 demandload(globals(), "errno lock os shutil util") |
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14 |
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15 def bundle(ui, path): |
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16 if path.startswith('bundle://'): |
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17 path = path[9:] |
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18 else: |
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19 path = path[7:] |
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20 s = path.split("+", 1) |
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21 if len(s) == 1: |
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22 repopath, bundlename = "", s[0] |
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23 else: |
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24 repopath, bundlename = s |
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25 return bundlerepo.bundlerepository(ui, repopath, bundlename) |
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26 |
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27 def hg(ui, path): |
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28 ui.warn(_("hg:// syntax is deprecated, please use http:// instead\n")) |
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29 return httprepo.httprepository(ui, path.replace("hg://", "http://")) |
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30 |
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31 def local_(ui, path, create=0): |
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32 if path.startswith('file:'): |
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33 path = path[5:] |
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34 return localrepo.localrepository(ui, path, create) |
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35 |
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36 def ssh_(ui, path, create=0): |
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37 return sshrepo.sshrepository(ui, path, create) |
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38 |
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39 def old_http(ui, path): |
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40 ui.warn(_("old-http:// syntax is deprecated, " |
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41 "please use static-http:// instead\n")) |
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42 return statichttprepo.statichttprepository( |
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43 ui, path.replace("old-http://", "http://")) |
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44 |
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45 def static_http(ui, path): |
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46 return statichttprepo.statichttprepository( |
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47 ui, path.replace("static-http://", "http://")) |
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48 |
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49 schemes = { |
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50 'bundle': bundle, |
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51 'file': local_, |
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52 'hg': hg, |
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53 'http': lambda ui, path: httprepo.httprepository(ui, path), |
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54 'https': lambda ui, path: httprepo.httpsrepository(ui, path), |
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55 'old-http': old_http, |
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56 'ssh': ssh_, |
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57 'static-http': static_http, |
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58 } |
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59 |
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60 remote_schemes = [ |
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61 'bundle', |
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62 'hg', |
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63 'http', |
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64 'https', |
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65 'old-http', |
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66 'ssh', |
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67 'static-http', |
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68 ] |
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69 |
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70 def islocal(repo): |
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71 '''return true if repo or path is local''' |
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72 if isinstance(repo, str): |
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73 c = repo.find(':') |
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74 return c <= 0 or repo[:c] not in remote_schemes |
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75 return repo.local() |
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76 |
60 | 77 def repository(ui, path=None, create=0): |
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78 scheme = None |
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79 if path: |
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80 c = path.find(':') |
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81 if c > 0: |
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82 scheme = schemes.get(path[:c]) |
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83 else: |
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84 path = '' |
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85 ctor = scheme or schemes['file'] |
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86 if create: |
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87 try: |
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88 return ctor(ui, path, create) |
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89 except TypeError: |
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90 raise util.Abort(_('cannot create new repository over "%s" protocol') % |
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91 scheme) |
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92 return ctor(ui, path) |
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93 |
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94 def defaultdest(source): |
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95 '''return default destination of clone if none is given''' |
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96 return os.path.basename(os.path.normpath(source)) |
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97 |
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98 def clone(ui, source, dest=None, pull=False, rev=None, update=True, |
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99 stream=False): |
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100 """Make a copy of an existing repository. |
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101 |
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102 Create a copy of an existing repository in a new directory. The |
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103 source and destination are URLs, as passed to the repository |
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104 function. Returns a pair of repository objects, the source and |
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105 newly created destination. |
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106 |
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107 The location of the source is added to the new repository's |
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108 .hg/hgrc file, as the default to be used for future pulls and |
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109 pushes. |
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110 |
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111 If an exception is raised, the partly cloned/updated destination |
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112 repository will be deleted. |
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113 |
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114 Arguments: |
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115 |
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116 source: repository object or URL |
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117 |
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118 dest: URL of destination repository to create (defaults to base |
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119 name of source repository) |
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120 |
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121 pull: always pull from source repository, even in local case |
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122 |
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123 stream: stream raw data uncompressed from repository (fast over |
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124 LAN, slow over WAN) |
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125 |
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126 rev: revision to clone up to (implies pull=True) |
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127 |
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128 update: update working directory after clone completes, if |
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129 destination is local repository |
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130 """ |
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131 if isinstance(source, str): |
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132 src_repo = repository(ui, source) |
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133 else: |
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134 src_repo = source |
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135 source = src_repo.url() |
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136 |
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137 if dest is None: |
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138 dest = defaultdest(source) |
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139 |
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140 def localpath(path): |
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141 if path.startswith('file://'): |
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142 return path[7:] |
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143 if path.startswith('file:'): |
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144 return path[5:] |
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145 return path |
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146 |
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147 dest = localpath(dest) |
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148 source = localpath(source) |
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149 |
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150 if os.path.exists(dest): |
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151 raise util.Abort(_("destination '%s' already exists"), dest) |
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152 |
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153 class DirCleanup(object): |
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154 def __init__(self, dir_): |
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155 self.rmtree = shutil.rmtree |
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156 self.dir_ = dir_ |
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157 def close(self): |
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158 self.dir_ = None |
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159 def __del__(self): |
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160 if self.dir_: |
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161 self.rmtree(self.dir_, True) |
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162 |
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163 dest_repo = None |
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164 try: |
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165 dest_repo = repository(ui, dest) |
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166 raise util.Abort(_("destination '%s' already exists." % dest)) |
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167 except RepoError: |
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168 dest_repo = repository(ui, dest, create=True) |
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169 |
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170 dest_path = None |
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171 dir_cleanup = None |
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172 if dest_repo.local(): |
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173 dest_path = os.path.realpath(dest_repo.root) |
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174 dir_cleanup = DirCleanup(dest_path) |
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175 |
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176 abspath = source |
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177 copy = False |
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178 if src_repo.local() and dest_repo.local(): |
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179 abspath = os.path.abspath(source) |
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180 copy = not pull and not rev |
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181 |
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182 src_lock, dest_lock = None, None |
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183 if copy: |
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184 try: |
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185 # we use a lock here because if we race with commit, we |
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186 # can end up with extra data in the cloned revlogs that's |
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187 # not pointed to by changesets, thus causing verify to |
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188 # fail |
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189 src_lock = src_repo.lock() |
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190 except lock.LockException: |
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191 copy = False |
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192 |
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193 if copy: |
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194 # we lock here to avoid premature writing to the target |
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195 dest_lock = lock.lock(os.path.join(dest_path, ".hg", "lock")) |
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196 |
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197 # we need to remove the (empty) data dir in dest so copyfiles |
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198 # can do its work |
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199 os.rmdir(os.path.join(dest_path, ".hg", "data")) |
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200 files = "data 00manifest.d 00manifest.i 00changelog.d 00changelog.i" |
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201 for f in files.split(): |
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202 src = os.path.join(source, ".hg", f) |
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203 dst = os.path.join(dest_path, ".hg", f) |
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204 try: |
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205 util.copyfiles(src, dst) |
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206 except OSError, inst: |
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207 if inst.errno != errno.ENOENT: |
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208 raise |
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209 |
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210 # we need to re-init the repo after manually copying the data |
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211 # into it |
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212 dest_repo = repository(ui, dest) |
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213 |
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214 else: |
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215 revs = None |
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216 if rev: |
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217 if not src_repo.local(): |
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218 raise util.Abort(_("clone by revision not supported yet " |
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219 "for remote repositories")) |
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220 revs = [src_repo.lookup(r) for r in rev] |
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221 |
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222 if dest_repo.local(): |
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223 dest_repo.clone(src_repo, heads=revs, stream=stream) |
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224 elif src_repo.local(): |
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225 src_repo.push(dest_repo, revs=revs) |
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226 else: |
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227 raise util.Abort(_("clone from remote to remote not supported")) |
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228 |
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229 if src_lock: |
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230 src_lock.release() |
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231 |
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232 if dest_repo.local(): |
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233 fp = dest_repo.opener("hgrc", "w", text=True) |
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234 fp.write("[paths]\n") |
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235 fp.write("default = %s\n" % abspath) |
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236 fp.close() |
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237 |
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238 if dest_lock: |
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239 dest_lock.release() |
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240 |
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241 if update: |
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242 dest_repo.update(dest_repo.changelog.tip()) |
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243 if dir_cleanup: |
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244 dir_cleanup.close() |
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245 |
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246 return src_repo, dest_repo |