Mercurial > hg
annotate mercurial/hg.py @ 10789:1b45468d3deb stable
util.termwidth: check stderr first as it's least likely to be redirected
author | Augie Fackler <durin42@gmail.com> |
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date | Mon, 15 Mar 2010 14:53:34 -0500 |
parents | 4a70178f9bde |
children | 71cf11f03b3d 17031fea4e95 |
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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 of the |
10263 | 7 # GNU General Public License version 2 or any later version. |
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8 |
3891 | 9 from i18n import _ |
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10 from lock import release |
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11 import localrepo, bundlerepo, httprepo, sshrepo, statichttprepo |
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12 import lock, util, extensions, error, encoding, node |
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13 import merge as _merge |
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14 import verify as _verify |
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15 import errno, os, shutil |
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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 addbranchrevs(lrepo, repo, branches, revs): |
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22 if not branches: |
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23 return revs or None, revs and revs[0] or None |
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24 revs = revs and list(revs) or [] |
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25 if not repo.capable('branchmap'): |
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26 revs.extend(branches) |
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27 return revs, revs[0] |
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28 branchmap = repo.branchmap() |
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29 for branch in branches: |
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30 if branch == '.': |
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31 if not lrepo or not lrepo.local(): |
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32 raise util.Abort(_("dirstate branch not accessible")) |
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33 revs.append(lrepo.dirstate.branch()) |
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34 else: |
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35 butf8 = encoding.fromlocal(branch) |
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36 if butf8 in branchmap: |
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37 revs.extend(node.hex(r) for r in reversed(branchmap[butf8])) |
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38 else: |
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39 revs.append(branch) |
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40 return revs, revs[0] |
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41 |
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42 def parseurl(url, branches=None): |
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43 '''parse url#branch, returning url, branches+[branch]''' |
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44 |
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45 if '#' not in url: |
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46 return url, branches or [] |
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47 url, branch = url.split('#', 1) |
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48 return url, (branches or []) + [branch] |
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49 |
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50 schemes = { |
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51 'bundle': bundlerepo, |
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52 'file': _local, |
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53 'http': httprepo, |
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54 'https': httprepo, |
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55 'ssh': sshrepo, |
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56 'static-http': statichttprepo, |
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57 } |
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58 |
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59 def _lookup(path): |
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60 scheme = 'file' |
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61 if path: |
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62 c = path.find(':') |
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63 if c > 0: |
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64 scheme = path[:c] |
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65 thing = schemes.get(scheme) or schemes['file'] |
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66 try: |
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67 return thing(path) |
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68 except TypeError: |
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69 return thing |
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70 |
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71 def islocal(repo): |
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72 '''return true if repo or path is local''' |
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73 if isinstance(repo, str): |
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74 try: |
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75 return _lookup(repo).islocal(repo) |
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76 except AttributeError: |
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77 return False |
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78 return repo.local() |
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79 |
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80 def repository(ui, path='', create=False): |
2774 | 81 """return a repository object for the specified path""" |
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82 repo = _lookup(path).instance(ui, path, create) |
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83 ui = getattr(repo, "ui", ui) |
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84 for name, module in extensions.extensions(): |
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85 hook = getattr(module, 'reposetup', None) |
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86 if hook: |
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87 hook(ui, repo) |
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88 return repo |
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89 |
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90 def defaultdest(source): |
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91 '''return default destination of clone if none is given''' |
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92 return os.path.basename(os.path.normpath(source)) |
2774 | 93 |
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94 def localpath(path): |
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95 if path.startswith('file://localhost/'): |
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96 return path[16:] |
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97 if path.startswith('file://'): |
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98 return path[7:] |
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99 if path.startswith('file:'): |
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100 return path[5:] |
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101 return path |
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102 |
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103 def share(ui, source, dest=None, update=True): |
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104 '''create a shared repository''' |
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105 |
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106 if not islocal(source): |
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107 raise util.Abort(_('can only share local repositories')) |
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108 |
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109 if not dest: |
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110 dest = defaultdest(source) |
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112 dest = ui.expandpath(dest) | |
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113 |
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114 if isinstance(source, str): |
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115 origsource = ui.expandpath(source) |
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116 source, branches = parseurl(origsource) |
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117 srcrepo = repository(ui, source) |
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118 rev, checkout = addbranchrevs(srcrepo, srcrepo, branches, None) |
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119 else: |
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120 srcrepo = source |
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121 origsource = source = srcrepo.url() |
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122 checkout = None |
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123 |
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124 sharedpath = srcrepo.sharedpath # if our source is already sharing |
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125 |
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126 root = os.path.realpath(dest) |
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127 roothg = os.path.join(root, '.hg') |
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128 |
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129 if os.path.exists(roothg): |
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130 raise util.Abort(_('destination already exists')) |
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131 |
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132 if not os.path.isdir(root): |
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133 os.mkdir(root) |
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134 os.mkdir(roothg) |
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135 |
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136 requirements = '' |
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137 try: |
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138 requirements = srcrepo.opener('requires').read() |
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139 except IOError, inst: |
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140 if inst.errno != errno.ENOENT: |
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141 raise |
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142 |
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143 requirements += 'shared\n' |
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144 file(os.path.join(roothg, 'requires'), 'w').write(requirements) |
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145 file(os.path.join(roothg, 'sharedpath'), 'w').write(sharedpath) |
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146 |
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147 default = srcrepo.ui.config('paths', 'default') |
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148 if default: |
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149 f = file(os.path.join(roothg, 'hgrc'), 'w') |
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150 f.write('[paths]\ndefault = %s\n' % default) |
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151 f.close() |
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152 |
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153 r = repository(ui, root) |
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154 |
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155 if update: |
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156 r.ui.status(_("updating working directory\n")) |
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157 if update is not True: |
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158 checkout = update |
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159 for test in (checkout, 'default', 'tip'): |
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160 if test is None: |
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161 continue |
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162 try: |
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163 uprev = r.lookup(test) |
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164 break |
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165 except error.RepoLookupError: |
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166 continue |
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167 _update(r, uprev) |
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168 |
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169 def clone(ui, source, dest=None, pull=False, rev=None, update=True, |
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170 stream=False, branch=None): |
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171 """Make a copy of an existing repository. |
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172 |
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173 Create a copy of an existing repository in a new directory. The |
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174 source and destination are URLs, as passed to the repository |
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175 function. Returns a pair of repository objects, the source and |
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176 newly created destination. |
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177 |
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178 The location of the source is added to the new repository's |
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179 .hg/hgrc file, as the default to be used for future pulls and |
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180 pushes. |
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181 |
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182 If an exception is raised, the partly cloned/updated destination |
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183 repository will be deleted. |
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184 |
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185 Arguments: |
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186 |
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187 source: repository object or URL |
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188 |
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189 dest: URL of destination repository to create (defaults to base |
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190 name of source repository) |
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191 |
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192 pull: always pull from source repository, even in local case |
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193 |
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194 stream: stream raw data uncompressed from repository (fast over |
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195 LAN, slow over WAN) |
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196 |
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197 rev: revision to clone up to (implies pull=True) |
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198 |
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199 update: update working directory after clone completes, if |
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200 destination is local repository (True means update to default rev, |
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201 anything else is treated as a revision) |
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202 |
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203 branch: branches to clone |
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204 """ |
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205 |
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206 if isinstance(source, str): |
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207 origsource = ui.expandpath(source) |
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208 source, branch = parseurl(origsource, branch) |
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209 src_repo = repository(ui, source) |
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210 else: |
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211 src_repo = source |
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212 branch = None |
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213 origsource = source = src_repo.url() |
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214 rev, checkout = addbranchrevs(src_repo, src_repo, branch, rev) |
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215 |
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216 if dest is None: |
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217 dest = defaultdest(source) |
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218 ui.status(_("destination directory: %s\n") % dest) |
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220 dest = ui.expandpath(dest) | |
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221 |
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222 dest = localpath(dest) |
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223 source = localpath(source) |
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224 |
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225 if os.path.exists(dest): |
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226 if not os.path.isdir(dest): |
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227 raise util.Abort(_("destination '%s' already exists") % dest) |
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228 elif os.listdir(dest): |
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229 raise util.Abort(_("destination '%s' is not empty") % dest) |
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230 |
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231 class DirCleanup(object): |
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232 def __init__(self, dir_): |
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233 self.rmtree = shutil.rmtree |
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234 self.dir_ = dir_ |
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235 def close(self): |
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236 self.dir_ = None |
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237 def cleanup(self): |
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238 if self.dir_: |
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239 self.rmtree(self.dir_, True) |
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240 |
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241 src_lock = dest_lock = dir_cleanup = None |
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242 try: |
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243 if islocal(dest): |
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244 dir_cleanup = DirCleanup(dest) |
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245 |
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246 abspath = origsource |
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247 copy = False |
6315 | 248 if src_repo.cancopy() and islocal(dest): |
5248 | 249 abspath = os.path.abspath(util.drop_scheme('file', origsource)) |
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250 copy = not pull and not rev |
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251 |
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252 if copy: |
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253 try: |
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254 # we use a lock here because if we race with commit, we |
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255 # can end up with extra data in the cloned revlogs that's |
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256 # not pointed to by changesets, thus causing verify to |
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257 # fail |
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258 src_lock = src_repo.lock(wait=False) |
7640 | 259 except error.LockError: |
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260 copy = False |
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261 |
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262 if copy: |
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263 src_repo.hook('preoutgoing', throw=True, source='clone') |
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264 hgdir = os.path.realpath(os.path.join(dest, ".hg")) |
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265 if not os.path.exists(dest): |
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266 os.mkdir(dest) |
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267 else: |
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268 # only clean up directories we create ourselves |
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269 dir_cleanup.dir_ = hgdir |
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270 try: |
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271 dest_path = hgdir |
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272 os.mkdir(dest_path) |
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273 except OSError, inst: |
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274 if inst.errno == errno.EEXIST: |
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275 dir_cleanup.close() |
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276 raise util.Abort(_("destination '%s' already exists") |
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277 % dest) |
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278 raise |
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279 |
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280 for f in src_repo.store.copylist(): |
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281 src = os.path.join(src_repo.sharedpath, f) |
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282 dst = os.path.join(dest_path, f) |
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283 dstbase = os.path.dirname(dst) |
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284 if dstbase and not os.path.exists(dstbase): |
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285 os.mkdir(dstbase) |
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286 if os.path.exists(src): |
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287 if dst.endswith('data'): |
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288 # lock to avoid premature writing to the target |
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289 dest_lock = lock.lock(os.path.join(dstbase, "lock")) |
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290 util.copyfiles(src, dst) |
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291 |
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292 # we need to re-init the repo after manually copying the data |
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293 # into it |
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294 dest_repo = repository(ui, dest) |
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295 src_repo.hook('outgoing', source='clone', node='0'*40) |
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296 else: |
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297 try: |
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298 dest_repo = repository(ui, dest, create=True) |
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299 except OSError, inst: |
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300 if inst.errno == errno.EEXIST: |
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301 dir_cleanup.close() |
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302 raise util.Abort(_("destination '%s' already exists") |
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303 % dest) |
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304 raise |
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305 |
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306 revs = None |
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307 if rev: |
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308 if 'lookup' not in src_repo.capabilities: |
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309 raise util.Abort(_("src repository does not support " |
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310 "revision lookup and so doesn't " |
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311 "support clone by revision")) |
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312 revs = [src_repo.lookup(r) for r in rev] |
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313 checkout = revs[0] |
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314 if dest_repo.local(): |
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315 dest_repo.clone(src_repo, heads=revs, stream=stream) |
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316 elif src_repo.local(): |
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317 src_repo.push(dest_repo, revs=revs) |
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318 else: |
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319 raise util.Abort(_("clone from remote to remote not supported")) |
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320 |
5186 | 321 if dir_cleanup: |
322 dir_cleanup.close() | |
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323 |
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324 if dest_repo.local(): |
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325 fp = dest_repo.opener("hgrc", "w", text=True) |
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326 fp.write("[paths]\n") |
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327 fp.write("default = %s\n" % abspath) |
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328 fp.close() |
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329 |
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330 dest_repo.ui.setconfig('paths', 'default', abspath) |
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331 |
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332 if update: |
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333 if update is not True: |
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334 checkout = update |
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335 if src_repo.local(): |
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336 checkout = src_repo.lookup(update) |
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337 for test in (checkout, 'default', 'tip'): |
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338 if test is None: |
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339 continue |
5248 | 340 try: |
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341 uprev = dest_repo.lookup(test) |
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342 break |
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343 except error.RepoLookupError: |
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344 continue |
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345 bn = dest_repo[uprev].branch() |
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346 dest_repo.ui.status(_("updating to branch %s\n") |
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347 % encoding.tolocal(bn)) |
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348 _update(dest_repo, uprev) |
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349 |
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350 return src_repo, dest_repo |
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351 finally: |
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352 release(src_lock, dest_lock) |
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353 if dir_cleanup is not None: |
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354 dir_cleanup.cleanup() |
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355 |
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356 def _showstats(repo, stats): |
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357 repo.ui.status(_("%d files updated, %d files merged, " |
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358 "%d files removed, %d files unresolved\n") % stats) |
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359 |
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360 def update(repo, node): |
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361 """update the working directory to node, merging linear changes""" |
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362 stats = _merge.update(repo, node, False, False, None) |
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363 _showstats(repo, stats) |
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364 if stats[3]: |
6518 | 365 repo.ui.status(_("use 'hg resolve' to retry unresolved file merges\n")) |
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366 return stats[3] > 0 |
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367 |
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368 # naming conflict in clone() |
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369 _update = update |
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370 |
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371 def clean(repo, node, show_stats=True): |
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372 """forcibly switch the working directory to node, clobbering changes""" |
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373 stats = _merge.update(repo, node, False, True, None) |
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374 if show_stats: |
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375 _showstats(repo, stats) |
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376 return stats[3] > 0 |
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377 |
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378 def merge(repo, node, force=None, remind=True): |
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379 """branch merge with node, resolving changes""" |
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380 stats = _merge.update(repo, node, True, force, False) |
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381 _showstats(repo, stats) |
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382 if stats[3]: |
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383 repo.ui.status(_("use 'hg resolve' to retry unresolved file merges " |
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384 "or 'hg update -C' to abandon\n")) |
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385 elif remind: |
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386 repo.ui.status(_("(branch merge, don't forget to commit)\n")) |
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387 return stats[3] > 0 |
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388 |
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389 def revert(repo, node, choose): |
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390 """revert changes to revision in node without updating dirstate""" |
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391 return _merge.update(repo, node, False, True, choose)[3] > 0 |
2778 | 392 |
393 def verify(repo): | |
394 """verify the consistency of a repository""" | |
395 return _verify.verify(repo) |