Mercurial > hgsubversion
annotate push_cmd.py @ 83:6c9b7cf1c5aa
push_cmd: delete empty svn directories, refactor directory creation
author | Patrick Mezard <pmezard@gmail.com> |
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date | Fri, 14 Nov 2008 16:18:24 -0600 |
parents | 49b7cbe4c8e3 |
children | 05a0c4f6060f |
rev | line source |
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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 svn import core |
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4 |
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5 import util |
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6 import hg_delta_editor |
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7 import svnwrap |
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8 import fetch_command |
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9 import utility_commands |
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10 |
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11 |
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12 @util.register_subcommand('push') |
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13 @util.register_subcommand('dcommit') # for git expats |
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14 def push_revisions_to_subversion(ui, repo, hg_repo_path, svn_url, **opts): |
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15 """Push revisions starting at a specified head back to Subversion. |
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16 """ |
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17 oldencoding = merc_util._encoding |
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18 merc_util._encoding = 'UTF-8' |
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19 hge = hg_delta_editor.HgChangeReceiver(hg_repo_path, |
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20 ui_=ui) |
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21 svn_commit_hashes = dict(zip(hge.revmap.itervalues(), |
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22 hge.revmap.iterkeys())) |
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23 # Strategy: |
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24 # 1. Find all outgoing commits from this head |
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25 outgoing = utility_commands.outgoing_revisions(ui, repo, hge, |
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26 svn_commit_hashes) |
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27 if not (outgoing and len(outgoing)): |
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28 ui.status('No revisions to push.') |
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29 return 0 |
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30 if len(repo.parents()) != 1: |
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31 ui.status('Cowardly refusing to push branch merge') |
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32 return 1 |
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33 while outgoing: |
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34 oldest = outgoing.pop(-1) |
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35 old_ctx = repo[oldest] |
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36 if len(old_ctx.parents()) != 1: |
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37 ui.status('Found a branch merge, this needs discussion and ' |
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38 'implementation.') |
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39 return 1 |
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40 base_n = old_ctx.parents()[0].node() |
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41 old_children = repo[base_n].children() |
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42 # 2. Commit oldest revision that needs to be pushed |
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43 base_revision = svn_commit_hashes[old_ctx.parents()[0].node()][0] |
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44 commit_from_rev(ui, repo, old_ctx, hge, svn_url, base_revision) |
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45 # 3. Fetch revisions from svn |
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46 r = fetch_command.fetch_revisions(ui, svn_url, hg_repo_path) |
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47 assert not r or r == 0 |
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48 # 4. Find the new head of the target branch |
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49 repo = hg.repository(ui, hge.path) |
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50 base_c = repo[base_n] |
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51 replacement = [c for c in base_c.children() if c not in old_children |
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52 and c.branch() == old_ctx.branch()] |
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53 assert len(replacement) == 1 |
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54 replacement = replacement[0] |
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55 # 5. Rebase all children of the currently-pushing rev to the new branch |
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56 heads = repo.heads(old_ctx.node()) |
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57 for needs_transplant in heads: |
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58 hg.clean(repo, needs_transplant) |
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59 utility_commands.rebase_commits(ui, repo, hg_repo_path, **opts) |
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60 repo = hg.repository(ui, hge.path) |
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61 if needs_transplant in outgoing: |
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62 hg.clean(repo, repo['tip'].node()) |
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63 hge = hg_delta_editor.HgChangeReceiver(hg_repo_path, ui_=ui) |
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64 svn_commit_hashes = dict(zip(hge.revmap.itervalues(), |
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65 hge.revmap.iterkeys())) |
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66 outgoing = utility_commands.outgoing_revisions(ui, repo, hge, |
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67 svn_commit_hashes) |
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68 merc_util._encoding = oldencoding |
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69 return 0 |
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70 |
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71 def _getdirchanges(svn, branchpath, parentctx, ctx, changedfiles): |
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72 """Compute directories to add or delete when moving from parentctx |
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73 to ctx, assuming only 'changedfiles' files changed. |
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74 |
83
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75 Return (added, deleted) where 'added' is the list of all added |
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76 directories and 'deleted' the list of deleted directories. |
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77 Intermediate directories are included: if a/b/c is new and requires |
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78 the addition of a/b and a, those will be listed too. Intermediate |
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79 deleted directories are also listed, but item order of undefined |
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80 in either list. |
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81 """ |
83
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82 def exists(svndir): |
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83 try: |
83
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84 svn.list_dir('%s/%s' % (branchpath, svndir)) |
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85 return True |
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86 except core.SubversionException: |
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87 return False |
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88 |
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89 def finddirs(path): |
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90 pos = path.rfind('/') |
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91 while pos != -1: |
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92 yield path[:pos] |
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93 pos = path.rfind('/', 0, pos) |
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94 |
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95 def getctxdirs(ctx, keptdirs): |
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96 dirs = {} |
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97 for f in ctx.manifest(): |
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98 for d in finddirs(f): |
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99 if d in dirs: |
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100 break |
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101 if d in keptdirs: |
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102 dirs[d] = 1 |
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103 return dirs |
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104 |
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105 deleted, added = [], [] |
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106 if not changedfiles: |
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107 return added, deleted |
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108 changeddirs = {} |
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109 for f in changedfiles: |
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110 for d in finddirs(f): |
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111 changeddirs[d] = 1 |
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112 olddirs = getctxdirs(parentctx, changeddirs) |
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113 newdirs = getctxdirs(ctx, changeddirs) |
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114 |
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115 for d in newdirs: |
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116 if d not in olddirs and not exists(d): |
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117 added.append(d) |
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118 |
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119 for d in olddirs: |
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120 if d not in newdirs and exists(d): |
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121 deleted.append(d) |
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122 |
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123 return added, deleted |
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124 |
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125 |
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126 def commit_from_rev(ui, repo, rev_ctx, hg_editor, svn_url, base_revision): |
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127 """Build and send a commit from Mercurial to Subversion. |
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128 """ |
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129 file_data = {} |
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130 svn = svnwrap.SubversionRepo(svn_url, username=merc_util.getuser()) |
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131 parent = rev_ctx.parents()[0] |
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132 parent_branch = rev_ctx.parents()[0].branch() |
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133 branch_path = 'trunk' |
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134 |
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135 if parent_branch and parent_branch != 'default': |
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136 branch_path = 'branches/%s' % parent_branch |
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137 |
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138 addeddirs, deleteddirs = _getdirchanges(svn, branch_path, parent, |
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139 rev_ctx, rev_ctx.files()) |
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140 deleteddirs = set(deleteddirs) |
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141 |
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142 props = {} |
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143 copies = {} |
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144 for file in rev_ctx.files(): |
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145 new_data = base_data = '' |
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146 action = '' |
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147 if file in rev_ctx: |
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148 fctx = rev_ctx.filectx(file) |
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149 new_data = fctx.data() |
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150 |
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151 if 'x' in fctx.flags(): |
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152 props.setdefault(file, {})['svn:executable'] = '*' |
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153 if 'l' in fctx.flags(): |
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154 props.setdefault(file, {})['svn:special'] = '*' |
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155 |
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156 if file not in parent: |
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157 renamed = fctx.renamed() |
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158 if renamed: |
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159 # TODO current model (and perhaps svn model) does not support |
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160 # this kind of renames: a -> b, b -> c |
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161 copies[file] = renamed[0] |
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162 base_data = parent[renamed[0]].data() |
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163 |
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164 action = 'add' |
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165 dirname = '/'.join(file.split('/')[:-1] + ['']) |
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166 else: |
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167 base_data = parent.filectx(file).data() |
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168 if ('x' in parent.filectx(file).flags() |
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169 and 'x' not in rev_ctx.filectx(file).flags()): |
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170 props.setdefault(file, {})['svn:executable'] = None |
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171 if ('l' in parent.filectx(file).flags() |
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172 and 'l' not in rev_ctx.filectx(file).flags()): |
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173 props.setdefault(file, {})['svn:special'] = None |
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174 action = 'modify' |
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175 else: |
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176 pos = file.rfind('/') |
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177 if pos >= 0: |
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178 if file[:pos] in deleteddirs: |
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179 # This file will be removed when its directory is removed |
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180 continue |
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181 base_data = parent.filectx(file).data() |
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182 action = 'delete' |
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183 file_data[file] = base_data, new_data, action |
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184 |
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185 # Now we are done with files, we can prune deleted directories |
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186 # against themselves: ignore a/b if a/ is already removed |
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187 deleteddirs2 = list(deleteddirs) |
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188 deleteddirs2.sort() |
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189 deleteddirs2.reverse() |
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190 for d in deleteddirs2: |
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191 pos = d.rfind('/') |
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192 if pos >= 0 and d[:pos] in deleteddirs: |
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193 deleteddirs.remove(d[:pos]) |
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194 |
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195 def svnpath(p): |
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196 return '%s/%s' % (branch_path, p) |
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197 |
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198 newcopies = {} |
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199 for source, dest in copies.iteritems(): |
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200 newcopies[svnpath(source)] = (svnpath(dest), base_revision) |
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201 |
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202 new_target_files = [svnpath(f) for f in file_data] |
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203 for tf, ntf in zip(file_data, new_target_files): |
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204 if tf in file_data: |
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205 file_data[ntf] = file_data[tf] |
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206 if tf in props: |
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207 props[ntf] = props[tf] |
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208 del props[tf] |
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209 if merc_util.binary(file_data[ntf][1]): |
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210 props.setdefault(ntf, {}).update(props.get(ntf, {})) |
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211 props.setdefault(ntf, {})['svn:mime-type'] = 'application/octet-stream' |
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212 del file_data[tf] |
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213 |
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214 addeddirs = [svnpath(d) for d in addeddirs] |
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215 deleteddirs = [svnpath(d) for d in deleteddirs] |
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216 new_target_files += addeddirs + deleteddirs |
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217 try: |
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218 svn.commit(new_target_files, rev_ctx.description(), file_data, |
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219 base_revision, set(addeddirs), set(deleteddirs), |
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220 props, newcopies) |
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221 except core.SubversionException, e: |
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222 if hasattr(e, 'apr_err') and e.apr_err == 160028: |
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223 raise merc_util.Abort('Base text was out of date, maybe rebase?') |
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224 else: |
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225 raise |