Mercurial > hg > mercurial-crew-with-dirclash

annotate mercurial/hg.py @ 4095:6fa7a2d0fc2e

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hgweb: catch util.Abort raised by addchangegroup Right now, if a pretxnchangegroup hook fails, we send some HTML error message to the client and the transaction is not rolled back (issue499). Catching util.Abort allows us to send a decent message to the client and for some reason makes the rollback complete. This patch is not perfect since it doesn't fix the reason why the transaction wasn't rolled back (maybe some circular references?). Also, the transaction is aborted only after we've sent the response back to the client and the "transaction aborted" message ends up in the logs of the web server.
author Alexis S. L. Carvalho <alexis@cecm.usp.br>
date Fri, 16 Feb 2007 05:10:43 -0200
parents 0f9381cf9723
children e6d26e71f049
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1 # hg.py - repository classes for mercurial
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2 #
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3 # Copyright 2005, 2006 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 demandload import *
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12 from i18n import gettext as _
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13 demandload(globals(), "localrepo bundlerepo httprepo sshrepo statichttprepo")
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14 demandload(globals(), "errno lock os shutil util merge@_merge verify@_verify")
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15
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16 def _local(path):
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17 return (os.path.isfile(util.drop_scheme('file', path)) and
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18 bundlerepo or localrepo)
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19
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20 schemes = {
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21 'bundle': bundlerepo,
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22 'file': _local,
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23 'hg': httprepo,
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24 'http': httprepo,
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25 'https': httprepo,
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26 'old-http': statichttprepo,
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27 'ssh': sshrepo,
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28 'static-http': statichttprepo,
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29 }
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30
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31 def _lookup(path):
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32 scheme = 'file'
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33 if path:
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34 c = path.find(':')
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35 if c > 0:
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36 scheme = path[:c]
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37 thing = schemes.get(scheme) or schemes['file']
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38 try:
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39 return thing(path)
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40 except TypeError:
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41 return thing
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42
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43 def islocal(repo):
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44 '''return true if repo or path is local'''
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45 if isinstance(repo, str):
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46 try:
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47 return _lookup(repo).islocal(repo)
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48 except AttributeError:
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49 return False
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50 return repo.local()
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51
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52 repo_setup_hooks = []
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53
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54 def repository(ui, path='', create=False):
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55 """return a repository object for the specified path"""
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56 repo = _lookup(path).instance(ui, path, create)
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57 ui = getattr(repo, "ui", ui)
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58 for hook in repo_setup_hooks:
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59 hook(ui, repo)
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60 return repo
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61
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62 def defaultdest(source):
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63 '''return default destination of clone if none is given'''
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64 return os.path.basename(os.path.normpath(source))
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65
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66 def clone(ui, source, dest=None, pull=False, rev=None, update=True,
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67 stream=False):
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68 """Make a copy of an existing repository.
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69
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70 Create a copy of an existing repository in a new directory. The
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71 source and destination are URLs, as passed to the repository
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72 function. Returns a pair of repository objects, the source and
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73 newly created destination.
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74
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75 The location of the source is added to the new repository's
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76 .hg/hgrc file, as the default to be used for future pulls and
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77 pushes.
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78
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79 If an exception is raised, the partly cloned/updated destination
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80 repository will be deleted.
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81
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82 Arguments:
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83
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84 source: repository object or URL
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85
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86 dest: URL of destination repository to create (defaults to base
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87 name of source repository)
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88
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89 pull: always pull from source repository, even in local case
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90
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91 stream: stream raw data uncompressed from repository (fast over
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92 LAN, slow over WAN)
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93
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94 rev: revision to clone up to (implies pull=True)
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96 update: update working directory after clone completes, if
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97 destination is local repository
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98 """
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99 if isinstance(source, str):
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100 src_repo = repository(ui, source)
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101 else:
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102 src_repo = source
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103 source = src_repo.url()
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104
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105 if dest is None:
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106 dest = defaultdest(source)
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107 ui.status(_("destination directory: %s\n") % dest)
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108
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109 def localpath(path):
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110 if path.startswith('file://'):
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111 return path[7:]
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112 if path.startswith('file:'):
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113 return path[5:]
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114 return path
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115
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116 dest = localpath(dest)
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117 source = localpath(source)
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119 if os.path.exists(dest):
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120 raise util.Abort(_("destination '%s' already exists") % dest)
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121
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122 class DirCleanup(object):
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diff changeset
123 def __init__(self, dir_):
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124 self.rmtree = shutil.rmtree
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diff changeset
125 self.dir_ = dir_
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diff changeset
126 def close(self):
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127 self.dir_ = None
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diff changeset
128 def __del__(self):
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129 if self.dir_:
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diff changeset
130 self.rmtree(self.dir_, True)
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diff changeset
131
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132 dir_cleanup = None
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diff changeset
133 if islocal(dest):
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134 dir_cleanup = DirCleanup(dest)
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diff changeset
135
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diff changeset
136 abspath = source
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137 copy = False
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diff changeset
138 if src_repo.local() and islocal(dest):
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diff changeset
139 abspath = os.path.abspath(source)
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diff changeset
140 copy = not pull and not rev
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diff changeset
141
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diff changeset
142 src_lock, dest_lock = None, None
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diff changeset
143 if copy:
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diff changeset
144 try:
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diff changeset
145 # we use a lock here because if we race with commit, we
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diff changeset
146 # can end up with extra data in the cloned revlogs that's
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diff changeset
147 # not pointed to by changesets, thus causing verify to
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diff changeset
148 # fail
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diff changeset
149 src_lock = src_repo.lock()
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diff changeset
150 except lock.LockException:
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diff changeset
151 copy = False
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152
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diff changeset
153 if copy:
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diff changeset
154 def force_copy(src, dst):
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diff changeset
155 try:
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diff changeset
156 util.copyfiles(src, dst)
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diff changeset
157 except OSError, inst:
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parents: 3849
diff changeset
158 if inst.errno != errno.ENOENT:
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diff changeset
159 raise
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diff changeset
160
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parents: 3713
diff changeset
161 src_store = os.path.realpath(src_repo.spath)
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diff changeset
162 if not os.path.exists(dest):
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diff changeset
163 os.mkdir(dest)
3853
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parents: 3851
diff changeset
164 dest_path = os.path.realpath(os.path.join(dest, ".hg"))
3849
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diff changeset
165 os.mkdir(dest_path)
3853
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parents: 3851
diff changeset
166 if src_repo.spath != src_repo.path:
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diff changeset
167 dest_store = os.path.join(dest_path, "store")
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diff changeset
168 os.mkdir(dest_store)
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diff changeset
169 else:
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diff changeset
170 dest_store = dest_path
3851
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diff changeset
171 # copy the requires file
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diff changeset
172 force_copy(src_repo.join("requires"),
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diff changeset
173 os.path.join(dest_path, "requires"))
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diff changeset
174 # we lock here to avoid premature writing to the target
3791
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diff changeset
175 dest_lock = lock.lock(os.path.join(dest_store, "lock"))
2597
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diff changeset
176
3713
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diff changeset
177 files = ("data",
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diff changeset
178 "00manifest.d", "00manifest.i",
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diff changeset
179 "00changelog.d", "00changelog.i")
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diff changeset
180 for f in files:
3791
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parents: 3713
diff changeset
181 src = os.path.join(src_store, f)
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diff changeset
182 dst = os.path.join(dest_store, f)
3851
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diff changeset
183 force_copy(src, dst)
2597
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diff changeset
184
2631
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diff changeset
185 # we need to re-init the repo after manually copying the data
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diff changeset
186 # into it
2597
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diff changeset
187 dest_repo = repository(ui, dest)
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diff changeset
188
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diff changeset
189 else:
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diff changeset
190 dest_repo = repository(ui, dest, create=True)
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diff changeset
191
2597
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diff changeset
192 revs = None
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diff changeset
193 if rev:
3448
6ca49c5fe268 Stop erroring out pull -r and clone -r if repository isn't local.
Eric Hopper <hopper@omnifarious.org>
parents: 3441
diff changeset
194 if 'lookup' not in src_repo.capabilities:
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parents: 3441
diff changeset
195 raise util.Abort(_("src repository does not support revision "
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parents: 3441
diff changeset
196 "lookup and so doesn't support clone by "
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parents: 3441
diff changeset
197 "revision"))
2597
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diff changeset
198 revs = [src_repo.lookup(r) for r in rev]
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diff changeset
199
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diff changeset
200 if dest_repo.local():
2613
479e26afa10f clone: do not make streaming default. add --stream option instead.
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parents: 2612
diff changeset
201 dest_repo.clone(src_repo, heads=revs, stream=stream)
2597
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diff changeset
202 elif src_repo.local():
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diff changeset
203 src_repo.push(dest_repo, revs=revs)
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diff changeset
204 else:
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diff changeset
205 raise util.Abort(_("clone from remote to remote not supported"))
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parents: 2595
diff changeset
206
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diff changeset
207 if src_lock:
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diff changeset
208 src_lock.release()
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diff changeset
209
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diff changeset
210 if dest_repo.local():
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parents: 2595
diff changeset
211 fp = dest_repo.opener("hgrc", "w", text=True)
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diff changeset
212 fp.write("[paths]\n")
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diff changeset
213 fp.write("default = %s\n" % abspath)
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parents: 2595
diff changeset
214 fp.close()
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parents: 2595
diff changeset
215
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parents: 2595
diff changeset
216 if dest_lock:
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diff changeset
217 dest_lock.release()
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parents: 2595
diff changeset
218
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diff changeset
219 if update:
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Matt Mackall <mpm@selenic.com>
parents: 3188
diff changeset
220 _update(dest_repo, dest_repo.changelog.tip())
2597
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diff changeset
221 if dir_cleanup:
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2595
diff changeset
222 dir_cleanup.close()
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2595
diff changeset
223
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2595
diff changeset
224 return src_repo, dest_repo
2799
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents: 2798
diff changeset
225
3323
39fd6e82ea38 merge: pull user messages out to hg.py
Matt Mackall <mpm@selenic.com>
parents: 3188
diff changeset
226 def _showstats(repo, stats):
39fd6e82ea38 merge: pull user messages out to hg.py
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parents: 3188
diff changeset
227 stats = ((stats[0], _("updated")),
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parents: 3188
diff changeset
228 (stats[1], _("merged")),
39fd6e82ea38 merge: pull user messages out to hg.py
Matt Mackall <mpm@selenic.com>
parents: 3188
diff changeset
229 (stats[2], _("removed")),
39fd6e82ea38 merge: pull user messages out to hg.py
Matt Mackall <mpm@selenic.com>
parents: 3188
diff changeset
230 (stats[3], _("unresolved")))
39fd6e82ea38 merge: pull user messages out to hg.py
Matt Mackall <mpm@selenic.com>
parents: 3188
diff changeset
231 note = ", ".join([_("%d files %s") % s for s in stats])
39fd6e82ea38 merge: pull user messages out to hg.py
Matt Mackall <mpm@selenic.com>
parents: 3188
diff changeset
232 repo.ui.status("%s\n" % note)
39fd6e82ea38 merge: pull user messages out to hg.py
Matt Mackall <mpm@selenic.com>
parents: 3188
diff changeset
233
39fd6e82ea38 merge: pull user messages out to hg.py
Matt Mackall <mpm@selenic.com>
parents: 3188
diff changeset
234 def _update(repo, node): return update(repo, node)
39fd6e82ea38 merge: pull user messages out to hg.py
Matt Mackall <mpm@selenic.com>
parents: 3188
diff changeset
235
2822
30f59f4a327e Introduce update helper functions: update, merge, clean, and revert
Matt Mackall <mpm@selenic.com>
parents: 2802
diff changeset
236 def update(repo, node):
30f59f4a327e Introduce update helper functions: update, merge, clean, and revert
Matt Mackall <mpm@selenic.com>
parents: 2802
diff changeset
237 """update the working directory to node, merging linear changes"""
3869
ad6f34c83c3d Add instructions how to redo/finish failed merge with local working directory.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 3854
diff changeset
238 pl = repo.parents()
3323
39fd6e82ea38 merge: pull user messages out to hg.py
Matt Mackall <mpm@selenic.com>
parents: 3188
diff changeset
239 stats = _merge.update(repo, node, False, False, None, None)
39fd6e82ea38 merge: pull user messages out to hg.py
Matt Mackall <mpm@selenic.com>
parents: 3188
diff changeset
240 _showstats(repo, stats)
39fd6e82ea38 merge: pull user messages out to hg.py
Matt Mackall <mpm@selenic.com>
parents: 3188
diff changeset
241 if stats[3]:
39fd6e82ea38 merge: pull user messages out to hg.py
Matt Mackall <mpm@selenic.com>
parents: 3188
diff changeset
242 repo.ui.status(_("There are unresolved merges with"
39fd6e82ea38 merge: pull user messages out to hg.py
Matt Mackall <mpm@selenic.com>
parents: 3188
diff changeset
243 " locally modified files.\n"))
3869
ad6f34c83c3d Add instructions how to redo/finish failed merge with local working directory.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 3854
diff changeset
244 if stats[1]:
ad6f34c83c3d Add instructions how to redo/finish failed merge with local working directory.
Thomas Arendsen Hein <thomas@intevation.de>
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245 repo.ui.status(_("You can finish the partial merge using:\n"))
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246 else:
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247 repo.ui.status(_("You can redo the full merge using:\n"))
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248 # len(pl)==1, otherwise _merge.update() would have raised util.Abort:
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249 repo.ui.status(_(" hg update %s\n hg update %s\n")
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250 % (pl[0].rev(), repo.changectx(node).rev()))
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251 return stats[3]
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252
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253 def clean(repo, node, wlock=None, show_stats=True):
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254 """forcibly switch the working directory to node, clobbering changes"""
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255 stats = _merge.update(repo, node, False, True, None, wlock)
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256 if show_stats: _showstats(repo, stats)
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257 return stats[3]
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258
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259 def merge(repo, node, force=None, remind=True, wlock=None):
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260 """branch merge with node, resolving changes"""
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261 stats = _merge.update(repo, node, True, force, False, wlock)
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262 _showstats(repo, stats)
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263 if stats[3]:
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264 pl = repo.parents()
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265 repo.ui.status(_("There are unresolved merges,"
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266 " you can redo the full merge using:\n"
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267 " hg update -C %s\n"
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268 " hg merge %s\n")
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269 % (pl[0].rev(), pl[1].rev()))
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270 elif remind:
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271 repo.ui.status(_("(branch merge, don't forget to commit)\n"))
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272 return stats[3]
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273
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274 def revert(repo, node, choose, wlock):
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275 """revert changes to revision in node without updating dirstate"""
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276 return _merge.update(repo, node, False, True, choose, wlock)[3]
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277
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278 def verify(repo):
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279 """verify the consistency of a repository"""
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280 return _verify.verify(repo)