Mercurial > hg
annotate mercurial/hg.py @ 6656:2cbe0f72c379
Merge with crew-stable
author | Patrick Mezard <pmezard@gmail.com> |
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date | Sat, 07 Jun 2008 11:43:16 +0200 |
parents | cfeeac24fc1e |
children | 0642d9d7ec80 |
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1 # hg.py - repository classes for mercurial |
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2 # |
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3 # Copyright 2005-2007 Matt Mackall <mpm@selenic.com> |
2859 | 4 # Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com> |
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5 # |
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6 # This software may be used and distributed according to the terms |
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7 # of the GNU General Public License, incorporated herein by reference. |
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8 |
3891 | 9 from i18n import _ |
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10 import localrepo, bundlerepo, httprepo, sshrepo, statichttprepo |
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11 import errno, lock, os, shutil, util, extensions |
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12 import merge as _merge |
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13 import verify as _verify |
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14 |
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15 def _local(path): |
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16 return (os.path.isfile(util.drop_scheme('file', path)) and |
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17 bundlerepo or localrepo) |
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18 |
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19 def parseurl(url, revs=[]): |
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20 '''parse url#branch, returning url, branch + revs''' |
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21 |
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22 if '#' not in url: |
5248 | 23 return url, (revs or None), None |
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24 |
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25 url, rev = url.split('#', 1) |
5248 | 26 return url, revs + [rev], rev |
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27 |
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28 schemes = { |
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29 'bundle': bundlerepo, |
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30 'file': _local, |
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31 'http': httprepo, |
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32 'https': httprepo, |
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33 'ssh': sshrepo, |
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34 'static-http': statichttprepo, |
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35 } |
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36 |
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37 def _lookup(path): |
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38 scheme = 'file' |
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39 if path: |
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40 c = path.find(':') |
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41 if c > 0: |
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42 scheme = path[:c] |
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43 thing = schemes.get(scheme) or schemes['file'] |
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44 try: |
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45 return thing(path) |
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46 except TypeError: |
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47 return thing |
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48 |
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49 def islocal(repo): |
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50 '''return true if repo or path is local''' |
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51 if isinstance(repo, str): |
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52 try: |
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53 return _lookup(repo).islocal(repo) |
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54 except AttributeError: |
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55 return False |
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56 return repo.local() |
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57 |
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58 def repository(ui, path='', create=False): |
2774 | 59 """return a repository object for the specified path""" |
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60 repo = _lookup(path).instance(ui, path, create) |
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61 ui = getattr(repo, "ui", ui) |
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62 for name, module in extensions.extensions(): |
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63 hook = getattr(module, 'reposetup', None) |
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64 if hook: |
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65 hook(ui, repo) |
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66 return repo |
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67 |
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68 def defaultdest(source): |
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69 '''return default destination of clone if none is given''' |
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70 return os.path.basename(os.path.normpath(source)) |
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72 def localpath(path): |
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73 if path.startswith('file://localhost/'): |
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74 return path[16:] |
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75 if path.startswith('file://'): |
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76 return path[7:] |
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77 if path.startswith('file:'): |
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78 return path[5:] |
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79 return path |
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80 |
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81 def clone(ui, source, dest=None, pull=False, rev=None, update=True, |
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82 stream=False): |
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83 """Make a copy of an existing repository. |
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84 |
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85 Create a copy of an existing repository in a new directory. The |
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86 source and destination are URLs, as passed to the repository |
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87 function. Returns a pair of repository objects, the source and |
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88 newly created destination. |
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89 |
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90 The location of the source is added to the new repository's |
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91 .hg/hgrc file, as the default to be used for future pulls and |
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92 pushes. |
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93 |
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94 If an exception is raised, the partly cloned/updated destination |
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95 repository will be deleted. |
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96 |
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97 Arguments: |
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98 |
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99 source: repository object or URL |
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100 |
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101 dest: URL of destination repository to create (defaults to base |
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102 name of source repository) |
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103 |
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104 pull: always pull from source repository, even in local case |
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105 |
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106 stream: stream raw data uncompressed from repository (fast over |
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107 LAN, slow over WAN) |
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108 |
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109 rev: revision to clone up to (implies pull=True) |
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110 |
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111 update: update working directory after clone completes, if |
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112 destination is local repository (True means update to default rev, |
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113 anything else is treated as a revision) |
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114 """ |
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115 |
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116 if isinstance(source, str): |
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117 origsource = ui.expandpath(source) |
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118 source, rev, checkout = parseurl(origsource, rev) |
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119 src_repo = repository(ui, source) |
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120 else: |
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121 src_repo = source |
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122 origsource = source = src_repo.url() |
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123 checkout = None |
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124 |
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125 if dest is None: |
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126 dest = defaultdest(source) |
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127 ui.status(_("destination directory: %s\n") % dest) |
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128 |
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129 dest = localpath(dest) |
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130 source = localpath(source) |
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131 |
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132 if os.path.exists(dest): |
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133 raise util.Abort(_("destination '%s' already exists") % dest) |
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134 |
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135 class DirCleanup(object): |
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136 def __init__(self, dir_): |
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137 self.rmtree = shutil.rmtree |
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138 self.dir_ = dir_ |
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139 def close(self): |
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140 self.dir_ = None |
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141 def __del__(self): |
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142 if self.dir_: |
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143 self.rmtree(self.dir_, True) |
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144 |
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145 src_lock = dest_lock = dir_cleanup = None |
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146 try: |
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147 if islocal(dest): |
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148 dir_cleanup = DirCleanup(dest) |
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149 |
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150 abspath = origsource |
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151 copy = False |
6315 | 152 if src_repo.cancopy() and islocal(dest): |
5248 | 153 abspath = os.path.abspath(util.drop_scheme('file', origsource)) |
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154 copy = not pull and not rev |
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155 |
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156 if copy: |
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157 try: |
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158 # we use a lock here because if we race with commit, we |
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159 # can end up with extra data in the cloned revlogs that's |
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160 # not pointed to by changesets, thus causing verify to |
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161 # fail |
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162 src_lock = src_repo.lock() |
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163 except lock.LockException: |
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164 copy = False |
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165 |
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166 if copy: |
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167 def force_copy(src, dst): |
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168 if not os.path.exists(src): |
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169 # Tolerate empty source repository and optional files |
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170 return |
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171 util.copyfiles(src, dst) |
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172 |
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173 src_store = os.path.realpath(src_repo.spath) |
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174 if not os.path.exists(dest): |
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175 os.mkdir(dest) |
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176 try: |
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177 dest_path = os.path.realpath(os.path.join(dest, ".hg")) |
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178 os.mkdir(dest_path) |
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179 except OSError, inst: |
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180 if inst.errno == errno.EEXIST: |
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181 dir_cleanup.close() |
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182 raise util.Abort(_("destination '%s' already exists") |
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183 % dest) |
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184 raise |
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185 if src_repo.spath != src_repo.path: |
5277 | 186 # XXX racy |
187 dummy_changelog = os.path.join(dest_path, "00changelog.i") | |
188 # copy the dummy changelog | |
189 force_copy(src_repo.join("00changelog.i"), dummy_changelog) | |
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190 dest_store = os.path.join(dest_path, "store") |
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191 os.mkdir(dest_store) |
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192 else: |
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193 dest_store = dest_path |
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194 # copy the requires file |
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195 force_copy(src_repo.join("requires"), |
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196 os.path.join(dest_path, "requires")) |
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197 # we lock here to avoid premature writing to the target |
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198 dest_lock = lock.lock(os.path.join(dest_store, "lock")) |
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199 |
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200 files = ("data", |
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201 "00manifest.d", "00manifest.i", |
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202 "00changelog.d", "00changelog.i") |
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203 for f in files: |
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204 src = os.path.join(src_store, f) |
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205 dst = os.path.join(dest_store, f) |
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206 force_copy(src, dst) |
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207 |
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208 # we need to re-init the repo after manually copying the data |
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209 # into it |
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210 dest_repo = repository(ui, dest) |
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211 |
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212 else: |
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213 try: |
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214 dest_repo = repository(ui, dest, create=True) |
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215 except OSError, inst: |
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216 if inst.errno == errno.EEXIST: |
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217 dir_cleanup.close() |
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218 raise util.Abort(_("destination '%s' already exists") |
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219 % dest) |
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220 raise |
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221 |
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222 revs = None |
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223 if rev: |
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224 if 'lookup' not in src_repo.capabilities: |
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225 raise util.Abort(_("src repository does not support revision " |
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226 "lookup and so doesn't support clone by " |
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227 "revision")) |
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228 revs = [src_repo.lookup(r) for r in rev] |
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229 |
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230 if dest_repo.local(): |
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231 dest_repo.clone(src_repo, heads=revs, stream=stream) |
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232 elif src_repo.local(): |
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233 src_repo.push(dest_repo, revs=revs) |
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234 else: |
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235 raise util.Abort(_("clone from remote to remote not supported")) |
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236 |
5186 | 237 if dir_cleanup: |
238 dir_cleanup.close() | |
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239 |
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240 if dest_repo.local(): |
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241 fp = dest_repo.opener("hgrc", "w", text=True) |
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242 fp.write("[paths]\n") |
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243 fp.write("default = %s\n" % abspath) |
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244 fp.close() |
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245 |
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246 if update: |
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247 dest_repo.ui.status(_("updating working directory\n")) |
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248 if update is not True: |
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249 checkout = update |
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250 elif not checkout: |
5248 | 251 try: |
252 checkout = dest_repo.lookup("default") | |
253 except: | |
254 checkout = dest_repo.changelog.tip() | |
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255 _update(dest_repo, checkout) |
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256 |
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257 return src_repo, dest_repo |
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258 finally: |
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259 del src_lock, dest_lock, dir_cleanup |
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260 |
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261 def _showstats(repo, stats): |
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262 stats = ((stats[0], _("updated")), |
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263 (stats[1], _("merged")), |
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264 (stats[2], _("removed")), |
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265 (stats[3], _("unresolved"))) |
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266 note = ", ".join([_("%d files %s") % s for s in stats]) |
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267 repo.ui.status("%s\n" % note) |
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268 |
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269 def _update(repo, node): return update(repo, node) |
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270 |
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271 def update(repo, node): |
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272 """update the working directory to node, merging linear changes""" |
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273 pl = repo.parents() |
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274 stats = _merge.update(repo, node, False, False, None) |
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275 _showstats(repo, stats) |
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276 if stats[3]: |
6518 | 277 repo.ui.status(_("use 'hg resolve' to retry unresolved file merges\n")) |
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278 return stats[3] > 0 |
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279 |
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280 def clean(repo, node, show_stats=True): |
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281 """forcibly switch the working directory to node, clobbering changes""" |
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282 stats = _merge.update(repo, node, False, True, None) |
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283 if show_stats: _showstats(repo, stats) |
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284 return stats[3] > 0 |
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285 |
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286 def merge(repo, node, force=None, remind=True): |
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287 """branch merge with node, resolving changes""" |
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288 stats = _merge.update(repo, node, True, force, False) |
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289 _showstats(repo, stats) |
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290 if stats[3]: |
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291 pl = repo.parents() |
6518 | 292 repo.ui.status(_("use 'hg resolve' to retry unresolved file merges\n")) |
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293 elif remind: |
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294 repo.ui.status(_("(branch merge, don't forget to commit)\n")) |
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295 return stats[3] > 0 |
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296 |
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297 def revert(repo, node, choose): |
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298 """revert changes to revision in node without updating dirstate""" |
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299 return _merge.update(repo, node, False, True, choose)[3] > 0 |
2778 | 300 |
301 def verify(repo): | |
302 """verify the consistency of a repository""" | |
303 return _verify.verify(repo) |