Mercurial > public > mercurial-scm > hg-stable

annotate mercurial/hg.py @ 5187:c1dbc9ae8f2b

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Merge with crew
author Matt Mackall <mpm@selenic.com>
date Fri, 17 Aug 2007 00:35:16 -0500
parents 92236732d5a1 0d5d03844927
children 60acf1432ee0
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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>
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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
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9 from node import *
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10 from repo import *
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11 from i18n import _
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12 import localrepo, bundlerepo, httprepo, sshrepo, statichttprepo
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13 import errno, lock, os, shutil, util, extensions
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14 import merge as _merge
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15 import verify as _verify
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16
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17 def _local(path):
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18 return (os.path.isfile(util.drop_scheme('file', path)) and
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19 bundlerepo or localrepo)
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20
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21 def parseurl(url, revs):
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22 '''parse url#branch, returning url, branch + revs'''
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23
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24 if '#' not in url:
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25 return url, (revs or None)
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26
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27 url, rev = url.split('#', 1)
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28 return url, revs + [rev]
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29
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30 schemes = {
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31 'bundle': bundlerepo,
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32 'file': _local,
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33 'http': httprepo,
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34 'https': httprepo,
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35 'ssh': sshrepo,
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36 'static-http': statichttprepo,
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37 }
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38
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39 def _lookup(path):
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40 scheme = 'file'
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41 if path:
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42 c = path.find(':')
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43 if c > 0:
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44 scheme = path[:c]
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45 thing = schemes.get(scheme) or schemes['file']
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46 try:
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47 return thing(path)
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48 except TypeError:
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49 return thing
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50
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51 def islocal(repo):
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52 '''return true if repo or path is local'''
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53 if isinstance(repo, str):
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54 try:
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55 return _lookup(repo).islocal(repo)
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56 except AttributeError:
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57 return False
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58 return repo.local()
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59
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60 def repository(ui, path='', create=False):
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61 """return a repository object for the specified path"""
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62 repo = _lookup(path).instance(ui, path, create)
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63 ui = getattr(repo, "ui", ui)
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64 for hook in extensions.setuphooks:
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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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71
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72 def clone(ui, source, dest=None, pull=False, rev=None, update=True,
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73 stream=False):
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74 """Make a copy of an existing repository.
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75
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76 Create a copy of an existing repository in a new directory. The
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77 source and destination are URLs, as passed to the repository
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78 function. Returns a pair of repository objects, the source and
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79 newly created destination.
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80
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81 The location of the source is added to the new repository's
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82 .hg/hgrc file, as the default to be used for future pulls and
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83 pushes.
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84
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85 If an exception is raised, the partly cloned/updated destination
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86 repository will be deleted.
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87
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88 Arguments:
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89
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90 source: repository object or URL
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91
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92 dest: URL of destination repository to create (defaults to base
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93 name of source repository)
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94
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95 pull: always pull from source repository, even in local case
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96
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97 stream: stream raw data uncompressed from repository (fast over
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98 LAN, slow over WAN)
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99
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100 rev: revision to clone up to (implies pull=True)
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101
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102 update: update working directory after clone completes, if
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103 destination is local repository
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104 """
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105
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106 origsource = source
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107 source, rev = parseurl(ui.expandpath(source), rev)
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108
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109 if isinstance(source, str):
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110 src_repo = repository(ui, source)
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111 else:
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112 src_repo = source
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113 source = src_repo.url()
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114
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115 if dest is None:
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116 dest = defaultdest(source)
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117 ui.status(_("destination directory: %s\n") % dest)
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118
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119 def localpath(path):
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120 if path.startswith('file://'):
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121 return path[7:]
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122 if path.startswith('file:'):
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123 return path[5:]
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124 return path
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125
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126 dest = localpath(dest)
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127 source = localpath(source)
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128
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129 if os.path.exists(dest):
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130 raise util.Abort(_("destination '%s' already exists") % dest)
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131
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132 class DirCleanup(object):
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133 def __init__(self, dir_):
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134 self.rmtree = shutil.rmtree
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135 self.dir_ = dir_
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136 def close(self):
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137 self.dir_ = None
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138 def __del__(self):
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139 if self.dir_:
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140 self.rmtree(self.dir_, True)
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141
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142 src_lock = dest_lock = dir_cleanup = None
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143 try:
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144 if islocal(dest):
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145 dir_cleanup = DirCleanup(dest)
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146
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147 abspath = origsource
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148 copy = False
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149 if src_repo.local() and islocal(dest):
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150 abspath = os.path.abspath(origsource)
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151 copy = not pull and not rev
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152
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153 if copy:
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154 try:
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155 # we use a lock here because if we race with commit, we
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156 # can end up with extra data in the cloned revlogs that's
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157 # not pointed to by changesets, thus causing verify to
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158 # fail
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159 src_lock = src_repo.lock()
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160 except lock.LockException:
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161 copy = False
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162
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163 if copy:
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164 def force_copy(src, dst):
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165 try:
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166 util.copyfiles(src, dst)
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diff changeset
167 except OSError, inst:
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diff changeset
168 if inst.errno != errno.ENOENT:
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169 raise
3851
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170
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171 src_store = os.path.realpath(src_repo.spath)
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172 if not os.path.exists(dest):
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173 os.mkdir(dest)
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diff changeset
174 dest_path = os.path.realpath(os.path.join(dest, ".hg"))
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175 os.mkdir(dest_path)
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176 if src_repo.spath != src_repo.path:
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diff changeset
177 dest_store = os.path.join(dest_path, "store")
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178 os.mkdir(dest_store)
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179 else:
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180 dest_store = dest_path
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181 # copy the requires file
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182 force_copy(src_repo.join("requires"),
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183 os.path.join(dest_path, "requires"))
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184 # we lock here to avoid premature writing to the target
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185 dest_lock = lock.lock(os.path.join(dest_store, "lock"))
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186
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187 files = ("data",
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188 "00manifest.d", "00manifest.i",
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diff changeset
189 "00changelog.d", "00changelog.i")
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diff changeset
190 for f in files:
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diff changeset
191 src = os.path.join(src_store, f)
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192 dst = os.path.join(dest_store, f)
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diff changeset
193 force_copy(src, dst)
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194
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195 # we need to re-init the repo after manually copying the data
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diff changeset
196 # into it
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197 dest_repo = repository(ui, dest)
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diff changeset
198
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199 else:
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200 dest_repo = repository(ui, dest, create=True)
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diff changeset
201
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202 revs = None
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203 if rev:
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diff changeset
204 if 'lookup' not in src_repo.capabilities:
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diff changeset
205 raise util.Abort(_("src repository does not support revision "
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diff changeset
206 "lookup and so doesn't support clone by "
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diff changeset
207 "revision"))
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diff changeset
208 revs = [src_repo.lookup(r) for r in rev]
3849
972d14a5a227 don't use localrepo.__init__ to create the dest repo with clone+hardlinks
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diff changeset
209
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diff changeset
210 if dest_repo.local():
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diff changeset
211 dest_repo.clone(src_repo, heads=revs, stream=stream)
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diff changeset
212 elif src_repo.local():
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diff changeset
213 src_repo.push(dest_repo, revs=revs)
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diff changeset
214 else:
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diff changeset
215 raise util.Abort(_("clone from remote to remote not supported"))
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diff changeset
216
5186
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diff changeset
217 if dir_cleanup:
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diff changeset
218 dir_cleanup.close()
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diff changeset
219
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diff changeset
220 if dest_repo.local():
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diff changeset
221 fp = dest_repo.opener("hgrc", "w", text=True)
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diff changeset
222 fp.write("[paths]\n")
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diff changeset
223 fp.write("default = %s\n" % abspath)
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diff changeset
224 fp.close()
5185
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parents: 4635
diff changeset
225
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diff changeset
226 if update:
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diff changeset
227 try:
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diff changeset
228 checkout = dest_repo.lookup("default")
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diff changeset
229 except:
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diff changeset
230 checkout = dest_repo.changelog.tip()
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diff changeset
231 _update(dest_repo, checkout)
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diff changeset
232
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diff changeset
233 return src_repo, dest_repo
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diff changeset
234 finally:
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diff changeset
235 del src_lock, dest_lock, dir_cleanup
2775
b550cd82f92a Move merge code to its own module
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diff changeset
236
3316
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diff changeset
237 def _showstats(repo, stats):
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diff changeset
238 stats = ((stats[0], _("updated")),
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diff changeset
239 (stats[1], _("merged")),
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diff changeset
240 (stats[2], _("removed")),
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diff changeset
241 (stats[3], _("unresolved")))
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diff changeset
242 note = ", ".join([_("%d files %s") % s for s in stats])
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diff changeset
243 repo.ui.status("%s\n" % note)
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diff changeset
244
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diff changeset
245 def _update(repo, node): return update(repo, node)
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diff changeset
246
2808
30f59f4a327e Introduce update helper functions: update, merge, clean, and revert
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diff changeset
247 def update(repo, node):
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diff changeset
248 """update the working directory to node, merging linear changes"""
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ad6f34c83c3d Add instructions how to redo/finish failed merge with local working directory.
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diff changeset
249 pl = repo.parents()
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126f527b3ba3 Make repo locks recursive, eliminate all passing of lock/wlock
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diff changeset
250 stats = _merge.update(repo, node, False, False, None)
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diff changeset
251 _showstats(repo, stats)
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diff changeset
252 if stats[3]:
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diff changeset
253 repo.ui.status(_("There are unresolved merges with"
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diff changeset
254 " locally modified files.\n"))
3869
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diff changeset
255 if stats[1]:
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diff changeset
256 repo.ui.status(_("You can finish the partial merge using:\n"))
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diff changeset
257 else:
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diff changeset
258 repo.ui.status(_("You can redo the full merge using:\n"))
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diff changeset
259 # len(pl)==1, otherwise _merge.update() would have raised util.Abort:
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diff changeset
260 repo.ui.status(_(" hg update %s\n hg update %s\n")
ad6f34c83c3d Add instructions how to redo/finish failed merge with local working directory.
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diff changeset
261 % (pl[0].rev(), repo.changectx(node).rev()))
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262 return stats[3]
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263
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264 def clean(repo, node, show_stats=True):
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265 """forcibly switch the working directory to node, clobbering changes"""
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266 stats = _merge.update(repo, node, False, True, None)
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267 if show_stats: _showstats(repo, stats)
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268 return stats[3]
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269
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270 def merge(repo, node, force=None, remind=True):
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271 """branch merge with node, resolving changes"""
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272 stats = _merge.update(repo, node, True, force, False)
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273 _showstats(repo, stats)
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274 if stats[3]:
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275 pl = repo.parents()
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276 repo.ui.status(_("There are unresolved merges,"
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277 " you can redo the full merge using:\n"
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278 " hg update -C %s\n"
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279 " hg merge %s\n")
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280 % (pl[0].rev(), pl[1].rev()))
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281 elif remind:
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282 repo.ui.status(_("(branch merge, don't forget to commit)\n"))
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283 return stats[3]
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284
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285 def revert(repo, node, choose):
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286 """revert changes to revision in node without updating dirstate"""
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287 return _merge.update(repo, node, False, True, choose)[3]
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288
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289 def verify(repo):
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290 """verify the consistency of a repository"""
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291 return _verify.verify(repo)