Mercurial > hg > mercurial-crew-with-dirclash

annotate hgext/convert/common.py @ 5369:7530334bf301

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
revlog: generate trivial deltas against null revision To avoid extra memory usage and performance issues with large files, generate a trivial delta header for deltas against the null revision rather than calling the usual delta generator. We append the delta header to meta rather than prepending it to data to avoid a large allocate and copy.
author Matt Mackall <mpm@selenic.com>
date Wed, 03 Oct 2007 17:17:27 -0500
parents f0931c0240b4
children 6aba1835a7b3
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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 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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Brendan Cully <brendan@kublai.com>
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151 pass