Mercurial > hgsubversion

annotate push_cmd.py @ 151:2decec74ad0c

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
push: Use a better method for finding the outgoing revisions.
author Augie Fackler <durin42@gmail.com>
date Mon, 22 Dec 2008 21:21:39 -0600
parents 58ae90a65f41
children 1fde85a10f9e
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1 from mercurial import util as merc_util
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2 from mercurial import hg
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3 from mercurial import node
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4 from svn import core
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5
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6 import util
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7 import hg_delta_editor
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8 import svnwrap
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9 import fetch_command
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10 import utility_commands
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11
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12
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13 @util.register_subcommand('push')
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14 @util.register_subcommand('dcommit') # for git expats
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15 def push_revisions_to_subversion(ui, repo, hg_repo_path, svn_url,
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16 stupid=False, **opts):
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17 """Push revisions starting at a specified head back to Subversion.
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18 """
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19 oldencoding = merc_util._encoding
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20 merc_util._encoding = 'UTF-8'
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21 hge = hg_delta_editor.HgChangeReceiver(hg_repo_path,
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22 ui_=ui)
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23 svn_commit_hashes = dict(zip(hge.revmap.itervalues(),
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24 hge.revmap.iterkeys()))
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25 # Strategy:
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26 # 1. Find all outgoing commits from this head
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27 outgoing = util.outgoing_revisions(ui, repo, hge, svn_commit_hashes)
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28 if not (outgoing and len(outgoing)):
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29 ui.status('No revisions to push.')
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30 return 0
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31 if len(repo.parents()) != 1:
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32 ui.status('Cowardly refusing to push branch merge')
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33 return 1
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34 while outgoing:
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35 oldest = outgoing.pop(-1)
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36 old_ctx = repo[oldest]
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37 if len(old_ctx.parents()) != 1:
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38 ui.status('Found a branch merge, this needs discussion and '
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39 'implementation.')
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40 return 1
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41 base_n = old_ctx.parents()[0].node()
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42 old_children = repo[base_n].children()
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43 svnbranch = repo[base_n].branch()
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44 oldtip = base_n
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45 samebranchchildren = [c for c in repo[oldtip].children() if c.branch() == svnbranch
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46 and c.node() in svn_commit_hashes]
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47 while samebranchchildren:
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48 oldtip = samebranchchildren[0].node()
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49 samebranchchildren = [c for c in repo[oldtip].children() if c.branch() == svnbranch
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50 and c.node() in svn_commit_hashes]
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51 # 2. Commit oldest revision that needs to be pushed
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52 base_revision = svn_commit_hashes[base_n][0]
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53 commit_from_rev(ui, repo, old_ctx, hge, svn_url, base_revision)
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54 # 3. Fetch revisions from svn
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55 r = fetch_command.fetch_revisions(ui, svn_url, hg_repo_path,
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56 stupid=stupid)
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57 assert not r or r == 0
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58 # 4. Find the new head of the target branch
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59 repo = hg.repository(ui, hge.path)
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60 oldtipctx = repo[oldtip]
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61 replacement = [c for c in oldtipctx.children() if c not in old_children
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62 and c.branch() == oldtipctx.branch()]
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63 assert len(replacement) == 1, 'Replacement node came back as: %r' % replacement
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64 replacement = replacement[0]
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65 # 5. Rebase all children of the currently-pushing rev to the new branch
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66 heads = repo.heads(old_ctx.node())
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67 for needs_transplant in heads:
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68 def extrafn(ctx, extra):
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69 if ctx.node() == oldest:
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70 return
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71 extra['branch'] = ctx.branch()
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72 hg.clean(repo, needs_transplant)
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73 utility_commands.rebase_commits(ui, repo, hg_repo_path, extrafn=extrafn, **opts)
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74 repo = hg.repository(ui, hge.path)
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75 for child in repo[replacement.node()].children():
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76 rebasesrc = node.bin(child.extra().get('rebase_source', node.hex(node.nullid)))
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77 if rebasesrc in outgoing:
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78 rebsrcindex = outgoing.index(rebasesrc)
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79 outgoing = outgoing[0:rebsrcindex] + [child.node(), ] + outgoing[rebsrcindex+1:]
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80 hge = hg_delta_editor.HgChangeReceiver(hg_repo_path, ui_=ui)
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81 svn_commit_hashes = dict(zip(hge.revmap.itervalues(), hge.revmap.iterkeys()))
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82 merc_util._encoding = oldencoding
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83 return 0
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84
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85 def _getdirchanges(svn, branchpath, parentctx, ctx, changedfiles):
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86 """Compute directories to add or delete when moving from parentctx
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87 to ctx, assuming only 'changedfiles' files changed.
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88
83
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89 Return (added, deleted) where 'added' is the list of all added
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90 directories and 'deleted' the list of deleted directories.
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91 Intermediate directories are included: if a/b/c is new and requires
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92 the addition of a/b and a, those will be listed too. Intermediate
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93 deleted directories are also listed, but item order of undefined
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94 in either list.
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95 """
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96 def exists(svndir):
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97 try:
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98 svn.list_dir('%s/%s' % (branchpath, svndir))
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99 return True
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100 except core.SubversionException:
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101 return False
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102
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103 def finddirs(path):
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104 pos = path.rfind('/')
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105 while pos != -1:
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106 yield path[:pos]
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107 pos = path.rfind('/', 0, pos)
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108
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109 def getctxdirs(ctx, keptdirs):
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110 dirs = {}
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111 for f in ctx.manifest():
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112 for d in finddirs(f):
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113 if d in dirs:
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114 break
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115 if d in keptdirs:
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116 dirs[d] = 1
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117 return dirs
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118
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119 deleted, added = [], []
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120 changeddirs = {}
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121 for f in changedfiles:
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122 if f in parentctx and f in ctx:
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123 # Updated files cannot cause directories to be created
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124 # or removed.
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125 continue
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126 for d in finddirs(f):
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127 changeddirs[d] = 1
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128 if not changeddirs:
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129 return added, deleted
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130 olddirs = getctxdirs(parentctx, changeddirs)
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131 newdirs = getctxdirs(ctx, changeddirs)
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132
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133 for d in newdirs:
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134 if d not in olddirs and not exists(d):
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135 added.append(d)
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136
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137 for d in olddirs:
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138 if d not in newdirs and exists(d):
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139 deleted.append(d)
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140
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141 return added, deleted
150
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142
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143
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144 def commit_from_rev(ui, repo, rev_ctx, hg_editor, svn_url, base_revision):
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145 """Build and send a commit from Mercurial to Subversion.
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146 """
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147 file_data = {}
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148 svn = svnwrap.SubversionRepo(svn_url, username=merc_util.getuser())
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149 parent = rev_ctx.parents()[0]
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150 parent_branch = rev_ctx.parents()[0].branch()
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151 branch_path = 'trunk'
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152
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153 if parent_branch and parent_branch != 'default':
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154 branch_path = 'branches/%s' % parent_branch
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155
150
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156 addeddirs, deleteddirs = _getdirchanges(svn, branch_path, parent,
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157 rev_ctx, rev_ctx.files())
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158 deleteddirs = set(deleteddirs)
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159
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160 props = {}
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161 copies = {}
0
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162 for file in rev_ctx.files():
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163 new_data = base_data = ''
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164 action = ''
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165 if file in rev_ctx:
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166 fctx = rev_ctx.filectx(file)
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167 new_data = fctx.data()
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168
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169 if 'x' in fctx.flags():
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170 props.setdefault(file, {})['svn:executable'] = '*'
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171 if 'l' in fctx.flags():
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172 props.setdefault(file, {})['svn:special'] = '*'
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173
0
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174 if file not in parent:
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175 renamed = fctx.renamed()
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176 if renamed:
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177 # TODO current model (and perhaps svn model) does not support
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178 # this kind of renames: a -> b, b -> c
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179 copies[file] = renamed[0]
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180 base_data = parent[renamed[0]].data()
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181
0
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182 action = 'add'
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183 dirname = '/'.join(file.split('/')[:-1] + [''])
0
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184 else:
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185 base_data = parent.filectx(file).data()
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186 if ('x' in parent.filectx(file).flags()
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187 and 'x' not in rev_ctx.filectx(file).flags()):
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188 props.setdefault(file, {})['svn:executable'] = None
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189 if ('l' in parent.filectx(file).flags()
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190 and 'l' not in rev_ctx.filectx(file).flags()):
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191 props.setdefault(file, {})['svn:special'] = None
0
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192 action = 'modify'
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193 else:
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194 pos = file.rfind('/')
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195 if pos >= 0:
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196 if file[:pos] in deleteddirs:
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197 # This file will be removed when its directory is removed
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198 continue
0
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199 base_data = parent.filectx(file).data()
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200 action = 'delete'
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201 file_data[file] = base_data, new_data, action
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202
83
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203 # Now we are done with files, we can prune deleted directories
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204 # against themselves: ignore a/b if a/ is already removed
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205 deleteddirs2 = list(deleteddirs)
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206 deleteddirs2.sort()
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207 deleteddirs2.reverse()
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208 for d in deleteddirs2:
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209 pos = d.rfind('/')
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210 if pos >= 0 and d[:pos] in deleteddirs:
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211 deleteddirs.remove(d[:pos])
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212
70
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213 def svnpath(p):
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214 return '%s/%s' % (branch_path, p)
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215
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216 newcopies = {}
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217 for source, dest in copies.iteritems():
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218 newcopies[svnpath(source)] = (svnpath(dest), base_revision)
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219
83
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220 new_target_files = [svnpath(f) for f in file_data]
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221 for tf, ntf in zip(file_data, new_target_files):
0
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222 if tf in file_data:
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223 file_data[ntf] = file_data[tf]
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224 if tf in props:
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225 props[ntf] = props[tf]
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226 del props[tf]
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227 if merc_util.binary(file_data[ntf][1]):
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228 props.setdefault(ntf, {}).update(props.get(ntf, {}))
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229 props.setdefault(ntf, {})['svn:mime-type'] = 'application/octet-stream'
0
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230 del file_data[tf]
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231
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232 addeddirs = [svnpath(d) for d in addeddirs]
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233 deleteddirs = [svnpath(d) for d in deleteddirs]
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234 new_target_files += addeddirs + deleteddirs
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235 try:
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236 svn.commit(new_target_files, rev_ctx.description(), file_data,
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237 base_revision, set(addeddirs), set(deleteddirs),
83
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238 props, newcopies)
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239 except core.SubversionException, e:
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240 if hasattr(e, 'apr_err') and e.apr_err == 160028:
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241 raise merc_util.Abort('Base text was out of date, maybe rebase?')
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242 else:
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243 raise