Mercurial > hgsubversion

annotate wrappers.py @ 257:ffccf0080e54

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Move wrappers for hg commands to their own module.
author Augie Fackler <durin42@gmail.com>
date Fri, 10 Apr 2009 22:38:29 -0500
parents
children 87dc4d0dd048
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257
ffccf0080e54 Move wrappers for hg commands to their own module.
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1 import os
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2
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3 from mercurial import cmdutil as hgcmdutil
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4 from mercurial import commands
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5 from mercurial import patch
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6 from mercurial import hg
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7 from mercurial import util as hgutil
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8 from mercurial import node
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9
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10 from svn import core
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11 from svn import delta
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12
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13 import cmdutil
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14 import hg_delta_editor
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15 import stupid as stupidmod
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16 import svnwrap
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17 import util
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18 import utility_commands
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19
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20 def parent(orig, ui, repo, *args, **opts):
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21 """show Mercurial & Subversion parents of the working dir or revision
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22 """
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23 if not opts.get('svn', False):
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24 return orig(ui, repo, *args, **opts)
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25 hge = hg_delta_editor.HgChangeReceiver(repo=repo)
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26 svn_commit_hashes = dict(zip(hge.revmap.itervalues(),
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27 hge.revmap.iterkeys()))
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28 ha = cmdutil.parentrev(ui, repo, hge, svn_commit_hashes)
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29 if ha.node() == node.nullid:
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30 raise hgutil.Abort('No parent svn revision!')
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31 displayer = hgcmdutil.show_changeset(ui, repo, opts, buffered=False)
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32 displayer.show(ha)
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33 return 0
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34
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35
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36 def outgoing(orig, ui, repo, dest=None, *args, **opts):
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37 """show changesets not found in the Subversion repository
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38 """
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39 svnurl = repo.ui.expandpath(dest or 'default-push', dest or 'default')
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40 if not (cmdutil.issvnurl(svnurl) or opts.get('svn', False)):
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41 return orig(ui, repo, dest, *args, **opts)
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42
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43 hge = hg_delta_editor.HgChangeReceiver(repo=repo)
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44 svn_commit_hashes = dict(zip(hge.revmap.itervalues(),
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45 hge.revmap.iterkeys()))
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46 o_r = util.outgoing_revisions(ui, repo, hge, svn_commit_hashes,
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47 repo.parents()[0].node())
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48 if not (o_r and len(o_r)):
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49 ui.status('no changes found\n')
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50 return 0
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51 displayer = hgcmdutil.show_changeset(ui, repo, opts, buffered=False)
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52 for node in reversed(o_r):
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53 displayer.show(repo[node])
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54
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55
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56
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57
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58 def diff(orig, ui, repo, *args, **opts):
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59 """show a diff of the most recent revision against its parent from svn
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60 """
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61 if not opts.get('svn', False) or opts.get('change', None):
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62 return orig(ui, repo, *args, **opts)
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63 svn_commit_hashes = {}
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64 hge = hg_delta_editor.HgChangeReceiver(repo=repo)
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65 svn_commit_hashes = dict(zip(hge.revmap.itervalues(),
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66 hge.revmap.iterkeys()))
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67 if not opts.get('rev', None):
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68 parent = repo.parents()[0]
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69 o_r = util.outgoing_revisions(ui, repo, hge, svn_commit_hashes,
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70 parent.node())
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71 if o_r:
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72 parent = repo[o_r[-1]].parents()[0]
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73 opts['rev'] = ['%s:.' % node.hex(parent.node()), ]
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74 node1, node2 = hgcmdutil.revpair(repo, opts['rev'])
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75 baserev, _junk = svn_commit_hashes.get(node1, (-1, 'junk', ))
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76 newrev, _junk = svn_commit_hashes.get(node2, (-1, 'junk', ))
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77 it = patch.diff(repo, node1, node2,
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78 opts=patch.diffopts(ui, opts={'git': True,
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79 'show_function': False,
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80 'ignore_all_space': False,
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81 'ignore_space_change': False,
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82 'ignore_blank_lines': False,
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83 'unified': True,
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84 'text': False,
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85 }))
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86 ui.write(cmdutil.filterdiff(''.join(it), baserev, newrev))
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87
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88
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89
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90
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91 def push(orig, ui, repo, dest=None, *args, **opts):
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92 """push revisions starting at a specified head back to Subversion.
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93 """
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94 svnurl = repo.ui.expandpath(dest or 'default-push', dest or 'default')
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95 if not cmdutil.issvnurl(svnurl):
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96 orig(ui, repo, dest=dest, *args, **opts)
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97 old_encoding = util.swap_out_encoding()
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98 hge = hg_delta_editor.HgChangeReceiver(repo=repo)
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99 svnurl = util.normalize_url(svnurl)
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100 if svnurl != hge.url:
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101 raise hgutil.Abort('wrong subversion url!')
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102 svn_commit_hashes = dict(zip(hge.revmap.itervalues(),
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103 hge.revmap.iterkeys()))
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104 user = opts.get('username', hgutil.getuser())
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105 passwd = opts.get('password', '')
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106
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107 # Strategy:
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108 # 1. Find all outgoing commits from this head
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109 if len(repo.parents()) != 1:
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110 ui.status('Cowardly refusing to push branch merge')
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111 return 1
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112 workingrev = repo.parents()[0]
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113 outgoing = util.outgoing_revisions(ui, repo, hge, svn_commit_hashes, workingrev.node())
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114 if not (outgoing and len(outgoing)):
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115 ui.status('No revisions to push.')
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116 return 0
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117 while outgoing:
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118 oldest = outgoing.pop(-1)
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119 old_ctx = repo[oldest]
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120 if len(old_ctx.parents()) != 1:
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121 ui.status('Found a branch merge, this needs discussion and '
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122 'implementation.')
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123 return 1
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124 base_n = old_ctx.parents()[0].node()
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125 old_children = repo[base_n].children()
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126 svnbranch = repo[base_n].branch()
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127 oldtip = base_n
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128 samebranchchildren = [c for c in repo[oldtip].children() if c.branch() == svnbranch
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129 and c.node() in svn_commit_hashes]
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130 while samebranchchildren:
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131 oldtip = samebranchchildren[0].node()
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132 samebranchchildren = [c for c in repo[oldtip].children() if c.branch() == svnbranch
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133 and c.node() in svn_commit_hashes]
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134 # 2. Commit oldest revision that needs to be pushed
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135 base_revision = svn_commit_hashes[base_n][0]
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136 try:
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137 cmdutil.commit_from_rev(ui, repo, old_ctx, hge, svnurl,
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138 base_revision, user, passwd)
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139 except cmdutil.NoFilesException:
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140 ui.warn("Could not push revision %s because it had no changes in svn.\n" %
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141 old_ctx)
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142 return 1
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143 # 3. Fetch revisions from svn
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144 r = pull(None, ui, repo, True, stupid=opts.get('svn_stupid', False),
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145 username=user, password=passwd)
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146 assert not r or r == 0
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147 # 4. Find the new head of the target branch
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148 repo = hg.repository(ui, hge.path)
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149 oldtipctx = repo[oldtip]
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150 replacement = [c for c in oldtipctx.children() if c not in old_children
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151 and c.branch() == oldtipctx.branch()]
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152 assert len(replacement) == 1, 'Replacement node came back as: %r' % replacement
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153 replacement = replacement[0]
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154 # 5. Rebase all children of the currently-pushing rev to the new branch
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155 heads = repo.heads(old_ctx.node())
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156 for needs_transplant in heads:
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157 def extrafn(ctx, extra):
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158 if ctx.node() == oldest:
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159 return
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160 extra['branch'] = ctx.branch()
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161 utility_commands.rebase(ui, repo, extrafn=extrafn,
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162 sourcerev=needs_transplant, **opts)
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163 repo = hg.repository(ui, hge.path)
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164 for child in repo[replacement.node()].children():
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165 rebasesrc = node.bin(child.extra().get('rebase_source', node.hex(node.nullid)))
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166 if rebasesrc in outgoing:
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167 while rebasesrc in outgoing:
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168 rebsrcindex = outgoing.index(rebasesrc)
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169 outgoing = (outgoing[0:rebsrcindex] +
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170 [child.node(), ] + outgoing[rebsrcindex+1:])
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171 children = [c for c in child.children() if c.branch() == child.branch()]
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172 if children:
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173 child = children[0]
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174 rebasesrc = node.bin(child.extra().get('rebase_source', node.hex(node.nullid)))
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175 hge = hg_delta_editor.HgChangeReceiver(hge.path, ui_=ui)
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176 svn_commit_hashes = dict(zip(hge.revmap.itervalues(), hge.revmap.iterkeys()))
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177 util.swap_out_encoding(old_encoding)
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178 return 0
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179
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180
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181
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182 def clone(orig, ui, source, dest=None, *args, **opts):
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183 '''clone Subversion repository to a local Mercurial repository.
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184
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185 If no destination directory name is specified, it defaults to the
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186 basename of the source plus "-hg".
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187
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188 You can specify multiple paths for the location of tags using comma
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189 separated values.
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190 '''
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191 svnurl = ui.expandpath(source)
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192 if not cmdutil.issvnurl(svnurl):
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193 orig(ui, source=source, dest=dest, *args, **opts)
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194
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195 if not dest:
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196 dest = hg.defaultdest(source) + '-hg'
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197 ui.status("Assuming destination %s\n" % dest)
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198
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199 if os.path.exists(dest):
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200 raise hgutil.Abort("destination '%s' already exists" % dest)
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201 url = util.normalize_url(svnurl)
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202 res = -1
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203 try:
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204 try:
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205 res = pull(None, ui, None, True, opts.pop('svn_stupid', False),
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206 source=url, create_new_dest=dest, **opts)
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207 except core.SubversionException, e:
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208 if e.apr_err == core.SVN_ERR_RA_SERF_SSL_CERT_UNTRUSTED:
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209 raise hgutil.Abort('It appears svn does not trust the ssl cert for this site.\n'
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210 'Please try running svn ls on that url first.')
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211 raise
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212 finally:
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213 if os.path.exists(dest):
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214 repo = hg.repository(ui, dest)
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215 fp = repo.opener("hgrc", "w", text=True)
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216 fp.write("[paths]\n")
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217 # percent needs to be escaped for ConfigParser
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218 fp.write("default = %(url)s\nsvn = %(url)s\n" % {'url': svnurl.replace('%', '%%')})
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219 fp.close()
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220 if (res is None or res == 0) and not opts.get('noupdate', False):
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221 commands.update(ui, repo, repo['tip'].node())
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222
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223 return res
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224
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225
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226 def pull(orig, ui, repo, svn=None, svn_stupid=False, source="default", create_new_dest=False,
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227 *args, **opts):
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228 """pull new revisions from Subversion
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229 """
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230 url = ((repo and repo.ui) or ui).expandpath(source)
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231 if not (cmdutil.issvnurl(url) or svn or create_new_dest):
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232 orig(ui, repo, source=source, *args, **opts)
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233 svn_url = url
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234 svn_url = util.normalize_url(svn_url)
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235 old_encoding = util.swap_out_encoding()
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236 # TODO implement skipto support
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237 skipto_rev = 0
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238 have_replay = not svn_stupid
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239 if have_replay and not callable(
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240 delta.svn_txdelta_apply(None, None, None)[0]): #pragma: no cover
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241 ui.status('You are using old Subversion SWIG bindings. Replay will not'
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242 ' work until you upgrade to 1.5.0 or newer. Falling back to'
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243 ' a slower method that may be buggier. Please upgrade, or'
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244 ' contribute a patch to use the ctypes bindings instead'
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245 ' of SWIG.\n')
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246 have_replay = False
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247 initializing_repo = False
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248 user = opts.get('username', hgutil.getuser())
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249 passwd = opts.get('password', '')
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250 svn = svnwrap.SubversionRepo(svn_url, user, passwd)
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251 author_host = "@%s" % svn.uuid
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252 # TODO these should be configurable again, but I'm torn on how.
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253 # Maybe this should be configured in .hg/hgrc for each repo? Seems vaguely reasonable.
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254 tag_locations = ['tags', ]
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255 authors = opts.pop('svn_authors', None)
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256 filemap = opts.pop('svn_filemap', None)
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257 if repo:
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258 hg_editor = hg_delta_editor.HgChangeReceiver(repo=repo,
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259 subdir=svn.subdir,
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260 author_host=author_host,
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261 tag_locations=tag_locations,
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262 authors=authors,
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263 filemap=filemap)
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264 else:
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265 hg_editor = hg_delta_editor.HgChangeReceiver(ui_=ui,
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266 path=create_new_dest,
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267 subdir=svn.subdir,
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268 author_host=author_host,
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269 tag_locations=tag_locations,
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270 authors=authors,
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271 filemap=filemap)
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272 if os.path.exists(hg_editor.uuid_file):
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273 uuid = open(hg_editor.uuid_file).read()
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274 assert uuid == svn.uuid
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275 start = hg_editor.last_known_revision()
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276 else:
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277 open(hg_editor.uuid_file, 'w').write(svn.uuid)
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278 open(hg_editor.svn_url_file, 'w').write(svn_url)
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279 initializing_repo = True
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280 start = skipto_rev
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281
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282 if initializing_repo and start > 0:
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283 raise hgutil.Abort('Revision skipping at repository initialization '
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284 'remains unimplemented.')
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285
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286 # start converting revisions
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287 for r in svn.revisions(start=start):
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288 valid = True
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289 hg_editor.update_branch_tag_map_for_rev(r)
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290 for p in r.paths:
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291 if hg_editor._is_path_valid(p):
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292 valid = True
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293 break
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294 if valid:
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295 # got a 502? Try more than once!
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296 tries = 0
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297 converted = False
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298 while not converted:
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299 try:
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300 util.describe_revision(ui, r)
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301 if have_replay:
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302 try:
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303 cmdutil.replay_convert_rev(hg_editor, svn, r)
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304 except svnwrap.SubversionRepoCanNotReplay, e: #pragma: no cover
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305 ui.status('%s\n' % e.message)
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306 stupidmod.print_your_svn_is_old_message(ui)
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307 have_replay = False
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308 stupidmod.svn_server_pull_rev(ui, svn, hg_editor, r)
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309 else:
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310 stupidmod.svn_server_pull_rev(ui, svn, hg_editor, r)
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311 converted = True
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312 except core.SubversionException, e: #pragma: no cover
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313 if (e.apr_err == core.SVN_ERR_RA_DAV_REQUEST_FAILED
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314 and '502' in str(e)
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315 and tries < 3):
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316 tries += 1
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317 ui.status('Got a 502, retrying (%s)\n' % tries)
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318 else:
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319 raise hgutil.Abort(*e.args)
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320 util.swap_out_encoding(old_encoding)