Mercurial > hg
annotate hgext/convert/filemap.py @ 13411:d4de90a612f7
commit: abort if a subrepo is modified and ui.commitsubrepos=no
The default behaviour is to commit subrepositories with uncommitted changes. In
my experience this is usually undesirable:
- Changes to dependencies are often debugging leftovers
- Real changes should generally be applied on the source project directly,
tested then committed. This is not always possible, subversion subrepos may
include only a small part of the source project, without the tests.
Setting ui.commitsubrepos=no will now abort commits containing such modified
subrepositories like:
$ hg --config ui.commitsubrepos=no ci -m msg
abort: uncommitted changes in subrepo sub
I ruled out the hook solution because it does not easily take --include/exclude
options in account. Also, my main concern is whether this flag could cause
problems with extensions. If there are legitimate reasons for callers to
override this behaviour (I could not find any), they might either override at ui
level, or we could add an argument to localrepo.commit() later.
v2:
- Renamed ui.commitsubs to ui.commitsubrepos
- Mention the configuration entry in hg help subrepos
author | Patrick Mezard <pmezard@gmail.com> |
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date | Tue, 15 Feb 2011 22:25:48 +0100 |
parents | 7fefef3ce791 |
children | 82845434e974 |
rev | line source |
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1 # Copyright 2007 Bryan O'Sullivan <bos@serpentine.com> |
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2 # Copyright 2007 Alexis S. L. Carvalho <alexis@cecm.usp.br> |
316 | 3 # |
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4 # This software may be used and distributed according to the terms of the |
10263 | 5 # GNU General Public License version 2 or any later version. |
316 | 6 |
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7 import shlex |
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8 from mercurial.i18n import _ |
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9 from mercurial import util |
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10 from common import SKIPREV, converter_source |
694 | 11 |
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12 def rpairs(name): |
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13 e = len(name) |
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14 while e != -1: |
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15 yield name[:e], name[e + 1:] |
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16 e = name.rfind('/', 0, e) |
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17 yield '.', name |
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18 |
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19 class filemapper(object): |
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20 '''Map and filter filenames when importing. |
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21 A name can be mapped to itself, a new name, or None (omit from new |
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22 repository).''' |
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23 |
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24 def __init__(self, ui, path=None): |
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25 self.ui = ui |
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26 self.include = {} |
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27 self.exclude = {} |
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28 self.rename = {} |
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29 if path: |
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30 if self.parse(path): |
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31 raise util.Abort(_('errors in filemap')) |
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32 |
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33 def parse(self, path): |
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34 errs = 0 |
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35 def check(name, mapping, listname): |
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36 if not name: |
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37 self.ui.warn(_('%s:%d: path to %s is missing\n') % |
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38 (lex.infile, lex.lineno, listname)) |
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39 return 1 |
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40 if name in mapping: |
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41 self.ui.warn(_('%s:%d: %r already in %s list\n') % |
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42 (lex.infile, lex.lineno, name, listname)) |
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43 return 1 |
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44 if (name.startswith('/') or |
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45 name.endswith('/') or |
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46 '//' in name): |
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47 self.ui.warn(_('%s:%d: superfluous / in %s %r\n') % |
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48 (lex.infile, lex.lineno, listname, name)) |
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49 return 1 |
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50 return 0 |
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51 lex = shlex.shlex(open(path), path, True) |
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52 lex.wordchars += '!@#$%^&*()-=+[]{}|;:,./<>?' |
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53 cmd = lex.get_token() |
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54 while cmd: |
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55 if cmd == 'include': |
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56 name = lex.get_token() |
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57 errs += check(name, self.exclude, 'exclude') |
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58 self.include[name] = name |
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59 elif cmd == 'exclude': |
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60 name = lex.get_token() |
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61 errs += check(name, self.include, 'include') |
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62 errs += check(name, self.rename, 'rename') |
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63 self.exclude[name] = name |
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64 elif cmd == 'rename': |
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65 src = lex.get_token() |
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66 dest = lex.get_token() |
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67 errs += check(src, self.exclude, 'exclude') |
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68 self.rename[src] = dest |
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69 elif cmd == 'source': |
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70 errs += self.parse(lex.get_token()) |
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71 else: |
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72 self.ui.warn(_('%s:%d: unknown directive %r\n') % |
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73 (lex.infile, lex.lineno, cmd)) |
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74 errs += 1 |
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75 cmd = lex.get_token() |
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76 return errs |
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77 |
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78 def lookup(self, name, mapping): |
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79 for pre, suf in rpairs(name): |
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80 try: |
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81 return mapping[pre], pre, suf |
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82 except KeyError: |
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83 pass |
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84 return '', name, '' |
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85 |
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86 def __call__(self, name): |
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87 if self.include: |
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88 inc = self.lookup(name, self.include)[0] |
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89 else: |
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90 inc = name |
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91 if self.exclude: |
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92 exc = self.lookup(name, self.exclude)[0] |
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93 else: |
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94 exc = '' |
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95 if (not self.include and exc) or (len(inc) <= len(exc)): |
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96 return None |
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97 newpre, pre, suf = self.lookup(name, self.rename) |
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98 if newpre: |
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99 if newpre == '.': |
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100 return suf |
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101 if suf: |
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102 return newpre + '/' + suf |
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103 return newpre |
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104 return name |
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105 |
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106 def active(self): |
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107 return bool(self.include or self.exclude or self.rename) |
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108 |
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109 # This class does two additional things compared to a regular source: |
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110 # |
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111 # - Filter and rename files. This is mostly wrapped by the filemapper |
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112 # class above. We hide the original filename in the revision that is |
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113 # returned by getchanges to be able to find things later in getfile. |
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114 # |
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115 # - Return only revisions that matter for the files we're interested in. |
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116 # This involves rewriting the parents of the original revision to |
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117 # create a graph that is restricted to those revisions. |
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118 # |
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119 # This set of revisions includes not only revisions that directly |
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120 # touch files we're interested in, but also merges that merge two |
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121 # or more interesting revisions. |
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122 |
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123 class filemap_source(converter_source): |
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124 def __init__(self, ui, baseconverter, filemap): |
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125 super(filemap_source, self).__init__(ui) |
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126 self.base = baseconverter |
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127 self.filemapper = filemapper(ui, filemap) |
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128 self.commits = {} |
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129 # if a revision rev has parent p in the original revision graph, then |
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130 # rev will have parent self.parentmap[p] in the restricted graph. |
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131 self.parentmap = {} |
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132 # self.wantedancestors[rev] is the set of all ancestors of rev that |
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133 # are in the restricted graph. |
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134 self.wantedancestors = {} |
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135 self.convertedorder = None |
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136 self._rebuilt = False |
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137 self.origparents = {} |
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138 self.children = {} |
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139 self.seenchildren = {} |
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140 |
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141 def before(self): |
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142 self.base.before() |
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143 |
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144 def after(self): |
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145 self.base.after() |
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146 |
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147 def setrevmap(self, revmap): |
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148 # rebuild our state to make things restartable |
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149 # |
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150 # To avoid calling getcommit for every revision that has already |
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151 # been converted, we rebuild only the parentmap, delaying the |
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152 # rebuild of wantedancestors until we need it (i.e. until a |
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153 # merge). |
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154 # |
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155 # We assume the order argument lists the revisions in |
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156 # topological order, so that we can infer which revisions were |
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157 # wanted by previous runs. |
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158 self._rebuilt = not revmap |
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159 seen = {SKIPREV: SKIPREV} |
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160 dummyset = set() |
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161 converted = [] |
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162 for rev in revmap.order: |
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163 mapped = revmap[rev] |
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164 wanted = mapped not in seen |
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165 if wanted: |
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166 seen[mapped] = rev |
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167 self.parentmap[rev] = rev |
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168 else: |
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169 self.parentmap[rev] = seen[mapped] |
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170 self.wantedancestors[rev] = dummyset |
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171 arg = seen[mapped] |
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172 if arg == SKIPREV: |
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173 arg = None |
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174 converted.append((rev, wanted, arg)) |
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175 self.convertedorder = converted |
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176 return self.base.setrevmap(revmap) |
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177 |
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178 def rebuild(self): |
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179 if self._rebuilt: |
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180 return True |
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181 self._rebuilt = True |
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182 self.parentmap.clear() |
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183 self.wantedancestors.clear() |
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184 self.seenchildren.clear() |
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185 for rev, wanted, arg in self.convertedorder: |
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186 if rev not in self.origparents: |
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187 self.origparents[rev] = self.getcommit(rev).parents |
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188 if arg is not None: |
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189 self.children[arg] = self.children.get(arg, 0) + 1 |
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190 |
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191 for rev, wanted, arg in self.convertedorder: |
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192 parents = self.origparents[rev] |
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193 if wanted: |
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194 self.mark_wanted(rev, parents) |
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195 else: |
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196 self.mark_not_wanted(rev, arg) |
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197 self._discard(arg, *parents) |
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198 |
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199 return True |
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200 |
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201 def getheads(self): |
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202 return self.base.getheads() |
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203 |
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204 def getcommit(self, rev): |
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205 # We want to save a reference to the commit objects to be able |
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206 # to rewrite their parents later on. |
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207 c = self.commits[rev] = self.base.getcommit(rev) |
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208 for p in c.parents: |
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209 self.children[p] = self.children.get(p, 0) + 1 |
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210 return c |
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211 |
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212 def _discard(self, *revs): |
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213 for r in revs: |
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214 if r is None: |
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215 continue |
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216 self.seenchildren[r] = self.seenchildren.get(r, 0) + 1 |
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217 if self.seenchildren[r] == self.children[r]: |
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218 del self.wantedancestors[r] |
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219 del self.parentmap[r] |
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220 del self.seenchildren[r] |
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221 if self._rebuilt: |
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222 del self.children[r] |
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223 |
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224 def wanted(self, rev, i): |
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225 # Return True if we're directly interested in rev. |
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226 # |
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227 # i is an index selecting one of the parents of rev (if rev |
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228 # has no parents, i is None). getchangedfiles will give us |
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229 # the list of files that are different in rev and in the parent |
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230 # indicated by i. If we're interested in any of these files, |
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231 # we're interested in rev. |
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232 try: |
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233 files = self.base.getchangedfiles(rev, i) |
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234 except NotImplementedError: |
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235 raise util.Abort(_("source repository doesn't support --filemap")) |
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236 for f in files: |
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237 if self.filemapper(f): |
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238 return True |
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239 return False |
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240 |
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241 def mark_not_wanted(self, rev, p): |
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242 # Mark rev as not interesting and update data structures. |
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243 |
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244 if p is None: |
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245 # A root revision. Use SKIPREV to indicate that it doesn't |
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246 # map to any revision in the restricted graph. Put SKIPREV |
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247 # in the set of wanted ancestors to simplify code elsewhere |
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248 self.parentmap[rev] = SKIPREV |
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249 self.wantedancestors[rev] = set((SKIPREV,)) |
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250 return |
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251 |
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252 # Reuse the data from our parent. |
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253 self.parentmap[rev] = self.parentmap[p] |
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254 self.wantedancestors[rev] = self.wantedancestors[p] |
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255 |
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256 def mark_wanted(self, rev, parents): |
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257 # Mark rev ss wanted and update data structures. |
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258 |
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259 # rev will be in the restricted graph, so children of rev in |
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260 # the original graph should still have rev as a parent in the |
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261 # restricted graph. |
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262 self.parentmap[rev] = rev |
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263 |
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264 # The set of wanted ancestors of rev is the union of the sets |
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265 # of wanted ancestors of its parents. Plus rev itself. |
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266 wrev = set() |
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267 for p in parents: |
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268 wrev.update(self.wantedancestors[p]) |
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269 wrev.add(rev) |
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270 self.wantedancestors[rev] = wrev |
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271 |
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272 def getchanges(self, rev): |
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273 parents = self.commits[rev].parents |
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274 if len(parents) > 1: |
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275 self.rebuild() |
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276 |
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277 # To decide whether we're interested in rev we: |
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278 # |
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279 # - calculate what parents rev will have if it turns out we're |
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280 # interested in it. If it's going to have more than 1 parent, |
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281 # we're interested in it. |
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282 # |
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283 # - otherwise, we'll compare it with the single parent we found. |
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284 # If any of the files we're interested in is different in the |
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285 # the two revisions, we're interested in rev. |
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286 |
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287 # A parent p is interesting if its mapped version (self.parentmap[p]): |
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288 # - is not SKIPREV |
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289 # - is still not in the list of parents (we don't want duplicates) |
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290 # - is not an ancestor of the mapped versions of the other parents |
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291 mparents = [] |
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292 wp = None |
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293 for i, p1 in enumerate(parents): |
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294 mp1 = self.parentmap[p1] |
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295 if mp1 == SKIPREV or mp1 in mparents: |
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296 continue |
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297 for p2 in parents: |
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298 if p1 == p2 or mp1 == self.parentmap[p2]: |
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299 continue |
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300 if mp1 in self.wantedancestors[p2]: |
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301 break |
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302 else: |
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303 mparents.append(mp1) |
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304 wp = i |
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305 |
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306 if wp is None and parents: |
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307 wp = 0 |
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308 |
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309 self.origparents[rev] = parents |
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310 |
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311 closed = 'close' in self.commits[rev].extra |
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312 |
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313 if len(mparents) < 2 and not closed and not self.wanted(rev, wp): |
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314 # We don't want this revision. |
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315 # Update our state and tell the convert process to map this |
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316 # revision to the same revision its parent as mapped to. |
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317 p = None |
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318 if parents: |
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319 p = parents[wp] |
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320 self.mark_not_wanted(rev, p) |
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321 self.convertedorder.append((rev, False, p)) |
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322 self._discard(*parents) |
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323 return self.parentmap[rev] |
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324 |
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325 # We want this revision. |
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326 # Rewrite the parents of the commit object |
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327 self.commits[rev].parents = mparents |
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328 self.mark_wanted(rev, parents) |
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329 self.convertedorder.append((rev, True, None)) |
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330 self._discard(*parents) |
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331 |
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332 # Get the real changes and do the filtering/mapping. To be |
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333 # able to get the files later on in getfile, we hide the |
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334 # original filename in the rev part of the return value. |
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335 changes, copies = self.base.getchanges(rev) |
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336 newnames = {} |
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337 files = [] |
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338 for f, r in changes: |
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339 newf = self.filemapper(f) |
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340 if newf: |
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341 files.append((newf, (f, r))) |
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342 newnames[f] = newf |
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343 |
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344 ncopies = {} |
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345 for c in copies: |
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346 newc = self.filemapper(c) |
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347 if newc: |
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348 newsource = self.filemapper(copies[c]) |
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349 if newsource: |
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350 ncopies[newc] = newsource |
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351 |
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352 return files, ncopies |
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353 |
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354 def getfile(self, name, rev): |
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355 realname, realrev = rev |
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356 return self.base.getfile(realname, realrev) |
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357 |
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358 def gettags(self): |
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359 return self.base.gettags() |
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360 |
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361 def hasnativeorder(self): |
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362 return self.base.hasnativeorder() |
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363 |
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364 def lookuprev(self, rev): |
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365 return self.base.lookuprev(rev) |