Mercurial > hg > mercurial-crew-with-dirclash

annotate hgext/convert/common.py @ 5352:f0931c0240b4

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
convert: add before/after hooks for converter sources
author Bryan O'Sullivan <bos@serpentine.com>
date Tue, 02 Oct 2007 13:46:17 -0700
parents c6f932d3e0f6
children 6aba1835a7b3
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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 class commit(object):
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21 def __init__(self, author, date, desc, parents, branch=None, rev=None):
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22 self.author = author
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23 self.date = date
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24 self.desc = desc
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25 self.parents = parents
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26 self.branch = branch
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27 self.rev = rev
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28
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29 class converter_source(object):
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30 """Conversion source interface"""
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31
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32 def __init__(self, ui, path, rev=None):
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33 """Initialize conversion source (or raise NoRepo("message")
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34 exception if path is not a valid repository)"""
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35 self.ui = ui
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36 self.path = path
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37 self.rev = rev
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38
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39 self.encoding = 'utf-8'
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40
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41 def before(self):
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42 pass
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43
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44 def after(self):
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45 pass
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46
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47 def setrevmap(self, revmap):
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48 """set the map of already-converted revisions"""
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49 pass
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50
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51 def getheads(self):
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52 """Return a list of this repository's heads"""
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53 raise NotImplementedError()
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54
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55 def getfile(self, name, rev):
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56 """Return file contents as a string"""
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57 raise NotImplementedError()
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58
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59 def getmode(self, name, rev):
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60 """Return file mode, eg. '', 'x', or 'l'"""
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61 raise NotImplementedError()
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62
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63 def getchanges(self, version):
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64 """Returns a tuple of (files, copies)
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65 Files is a sorted list of (filename, id) tuples for all files changed
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66 in version, where id is the source revision id of the file.
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67
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68 copies is a dictionary of dest: source
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69 """
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70 raise NotImplementedError()
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71
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72 def getcommit(self, version):
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73 """Return the commit object for version"""
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74 raise NotImplementedError()
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75
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76 def gettags(self):
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77 """Return the tags as a dictionary of name: revision"""
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78 raise NotImplementedError()
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79
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80 def recode(self, s, encoding=None):
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81 if not encoding:
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82 encoding = self.encoding or 'utf-8'
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83
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84 if isinstance(s, unicode):
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85 return s.encode("utf-8")
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86 try:
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87 return s.decode(encoding).encode("utf-8")
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88 except:
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89 try:
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90 return s.decode("latin-1").encode("utf-8")
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91 except:
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92 return s.decode(encoding, "replace").encode("utf-8")
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93
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94 class converter_sink(object):
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95 """Conversion sink (target) interface"""
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96
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97 def __init__(self, ui, path):
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98 """Initialize conversion sink (or raise NoRepo("message")
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99 exception if path is not a valid repository)"""
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100 raise NotImplementedError()
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101
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102 def getheads(self):
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103 """Return a list of this repository's heads"""
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104 raise NotImplementedError()
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105
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106 def revmapfile(self):
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107 """Path to a file that will contain lines
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108 source_rev_id sink_rev_id
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109 mapping equivalent revision identifiers for each system."""
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110 raise NotImplementedError()
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111
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112 def authorfile(self):
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113 """Path to a file that will contain lines
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114 srcauthor=dstauthor
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115 mapping equivalent authors identifiers for each system."""
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116 return None
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117
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118 def putfile(self, f, e, data):
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119 """Put file for next putcommit().
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120 f: path to file
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121 e: '', 'x', or 'l' (regular file, executable, or symlink)
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122 data: file contents"""
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123 raise NotImplementedError()
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124
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125 def delfile(self, f):
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126 """Delete file for next putcommit().
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127 f: path to file"""
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128 raise NotImplementedError()
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129
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130 def putcommit(self, files, parents, commit):
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131 """Create a revision with all changed files listed in 'files'
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132 and having listed parents. 'commit' is a commit object containing
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133 at a minimum the author, date, and message for this changeset.
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134 Called after putfile() and delfile() calls. Note that the sink
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135 repository is not told to update itself to a particular revision
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136 (or even what that revision would be) before it receives the
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137 file data."""
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138 raise NotImplementedError()
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139
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140 def puttags(self, tags):
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141 """Put tags into sink.
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142 tags: {tagname: sink_rev_id, ...}"""
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143 raise NotImplementedError()
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144
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145 def setbranch(self, branch, pbranch, parents):
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146 """Set the current branch name. Called before the first putfile
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147 on the branch.
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148 branch: branch name for subsequent commits
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149 pbranch: branch name of parent commit
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150 parents: destination revisions of parent"""
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151 pass