Mercurial > hg > mercurial-crew-with-dirclash
annotate hgext/convert/common.py @ 5374:e710874247d1
convert: allow the converter_source to say "skip this revision"
If getchanges returns a string, it's assumed to be the id of an
already converted revision. We map the current revision to the same
revision this converted revision was mapped to.
To allow skipping a root revision, getchanges can return the special
string 'hg-convert-skipped-revision' (a.k.a. common.SKIPREV), which
hopefully won't clash with any real id.
The converter_source is responsible for rewriting the parents of the
commit objects to make sure the revision graph makes sense.
author | Alexis S. L. Carvalho <alexis@cecm.usp.br> |
---|---|
date | Thu, 04 Oct 2007 23:21:37 -0300 |
parents | 6aba1835a7b3 |
children | 756a43a30e34 |
rev | line source |
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1 # common code for the convert extension |
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2 import base64 |
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3 import cPickle as pickle |
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4 |
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5 def encodeargs(args): |
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6 def encodearg(s): |
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7 lines = base64.encodestring(s) |
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8 lines = [l.splitlines()[0] for l in lines] |
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9 return ''.join(lines) |
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10 |
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11 s = pickle.dumps(args) |
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12 return encodearg(s) |
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13 |
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14 def decodeargs(s): |
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15 s = base64.decodestring(s) |
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16 return pickle.loads(s) |
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17 |
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18 class NoRepo(Exception): pass |
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19 |
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20 SKIPREV = 'hg-convert-skipped-revision' |
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21 |
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22 class commit(object): |
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23 def __init__(self, author, date, desc, parents, branch=None, rev=None): |
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24 self.author = author |
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25 self.date = date |
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26 self.desc = desc |
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27 self.parents = parents |
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28 self.branch = branch |
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29 self.rev = rev |
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30 |
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31 class converter_source(object): |
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32 """Conversion source interface""" |
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33 |
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34 def __init__(self, ui, path, rev=None): |
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35 """Initialize conversion source (or raise NoRepo("message") |
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36 exception if path is not a valid repository)""" |
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37 self.ui = ui |
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38 self.path = path |
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39 self.rev = rev |
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40 |
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41 self.encoding = 'utf-8' |
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42 |
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43 def before(self): |
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44 pass |
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45 |
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46 def after(self): |
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47 pass |
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48 |
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49 def setrevmap(self, revmap, order): |
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50 """set the map of already-converted revisions |
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51 |
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52 order is a list with the keys from revmap in the order they |
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53 appear in the revision map file.""" |
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54 pass |
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55 |
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56 def getheads(self): |
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57 """Return a list of this repository's heads""" |
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58 raise NotImplementedError() |
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59 |
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60 def getfile(self, name, rev): |
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61 """Return file contents as a string""" |
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62 raise NotImplementedError() |
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63 |
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64 def getmode(self, name, rev): |
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65 """Return file mode, eg. '', 'x', or 'l'""" |
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66 raise NotImplementedError() |
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67 |
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68 def getchanges(self, version): |
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69 """Returns a tuple of (files, copies) |
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70 Files is a sorted list of (filename, id) tuples for all files changed |
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71 in version, where id is the source revision id of the file. |
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72 |
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73 copies is a dictionary of dest: source |
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74 """ |
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75 raise NotImplementedError() |
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76 |
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77 def getcommit(self, version): |
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78 """Return the commit object for version""" |
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79 raise NotImplementedError() |
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80 |
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81 def gettags(self): |
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82 """Return the tags as a dictionary of name: revision""" |
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83 raise NotImplementedError() |
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84 |
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85 def recode(self, s, encoding=None): |
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86 if not encoding: |
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87 encoding = self.encoding or 'utf-8' |
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88 |
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89 if isinstance(s, unicode): |
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90 return s.encode("utf-8") |
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91 try: |
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92 return s.decode(encoding).encode("utf-8") |
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93 except: |
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94 try: |
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95 return s.decode("latin-1").encode("utf-8") |
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96 except: |
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97 return s.decode(encoding, "replace").encode("utf-8") |
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98 |
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99 class converter_sink(object): |
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100 """Conversion sink (target) interface""" |
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101 |
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102 def __init__(self, ui, path): |
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103 """Initialize conversion sink (or raise NoRepo("message") |
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104 exception if path is not a valid repository)""" |
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105 raise NotImplementedError() |
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106 |
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107 def getheads(self): |
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108 """Return a list of this repository's heads""" |
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109 raise NotImplementedError() |
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110 |
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111 def revmapfile(self): |
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112 """Path to a file that will contain lines |
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113 source_rev_id sink_rev_id |
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114 mapping equivalent revision identifiers for each system.""" |
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115 raise NotImplementedError() |
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116 |
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117 def authorfile(self): |
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118 """Path to a file that will contain lines |
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119 srcauthor=dstauthor |
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120 mapping equivalent authors identifiers for each system.""" |
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121 return None |
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122 |
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123 def putfile(self, f, e, data): |
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124 """Put file for next putcommit(). |
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125 f: path to file |
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126 e: '', 'x', or 'l' (regular file, executable, or symlink) |
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127 data: file contents""" |
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128 raise NotImplementedError() |
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129 |
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130 def delfile(self, f): |
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131 """Delete file for next putcommit(). |
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132 f: path to file""" |
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133 raise NotImplementedError() |
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134 |
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135 def putcommit(self, files, parents, commit): |
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136 """Create a revision with all changed files listed in 'files' |
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137 and having listed parents. 'commit' is a commit object containing |
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138 at a minimum the author, date, and message for this changeset. |
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139 Called after putfile() and delfile() calls. Note that the sink |
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140 repository is not told to update itself to a particular revision |
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141 (or even what that revision would be) before it receives the |
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142 file data.""" |
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143 raise NotImplementedError() |
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144 |
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145 def puttags(self, tags): |
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146 """Put tags into sink. |
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147 tags: {tagname: sink_rev_id, ...}""" |
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148 raise NotImplementedError() |
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149 |
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150 def setbranch(self, branch, pbranch, parents): |
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151 """Set the current branch name. Called before the first putfile |
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152 on the branch. |
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153 branch: branch name for subsequent commits |
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154 pbranch: branch name of parent commit |
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155 parents: destination revisions of parent""" |
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156 pass |