Mercurial > public > mercurial-scm > hg-stable
annotate mercurial/changelog.py @ 43145:4296cc3c4ae1
changelog: make copies related function return None or a valid value
With the previous code, existing but empty value were not "decoded", leading to
the method returning one of `None`, some valid value (`list` or `dict`) or
`b''`.
On a general basis, not explicitly checking for None is a source of bugs.
Having a clean return types will help the side-data copies code in future
changesets.
Differential Revision: https://phab.mercurial-scm.org/D7037
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Thu, 10 Oct 2019 00:06:41 +0200 |
parents | 037a8759eda1 |
children | 0171483b082f |
rev | line source |
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1095 | 1 # changelog.py - changelog class for mercurial |
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2 # |
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3 # Copyright 2005-2007 Matt Mackall <mpm@selenic.com> |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
10263 | 6 # GNU General Public License version 2 or any later version. |
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7 |
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8 from __future__ import absolute_import |
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9 |
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10 from .i18n import _ |
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11 from .node import ( |
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12 bin, |
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13 hex, |
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14 nullid, |
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15 ) |
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16 from .thirdparty import attr |
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17 |
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18 from . import ( |
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19 encoding, |
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20 error, |
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21 pycompat, |
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22 revlog, |
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23 util, |
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24 ) |
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25 from .utils import ( |
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26 dateutil, |
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27 stringutil, |
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28 ) |
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29 |
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30 from .revlogutils import sidedata as sidedatamod |
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31 |
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32 _defaultextra = {b'branch': b'default'} |
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33 |
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34 |
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35 def _string_escape(text): |
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36 """ |
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37 >>> from .pycompat import bytechr as chr |
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38 >>> d = {b'nl': chr(10), b'bs': chr(92), b'cr': chr(13), b'nul': chr(0)} |
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39 >>> s = b"ab%(nl)scd%(bs)s%(bs)sn%(nul)s12ab%(cr)scd%(bs)s%(nl)s" % d |
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40 >>> s |
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41 'ab\\ncd\\\\\\\\n\\x0012ab\\rcd\\\\\\n' |
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42 >>> res = _string_escape(s) |
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43 >>> s == _string_unescape(res) |
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44 True |
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45 """ |
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46 # subset of the string_escape codec |
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47 text = ( |
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48 text.replace(b'\\', b'\\\\') |
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49 .replace(b'\n', b'\\n') |
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50 .replace(b'\r', b'\\r') |
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51 ) |
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52 return text.replace(b'\0', b'\\0') |
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53 |
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54 |
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55 def _string_unescape(text): |
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56 if b'\\0' in text: |
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57 # fix up \0 without getting into trouble with \\0 |
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58 text = text.replace(b'\\\\', b'\\\\\n') |
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59 text = text.replace(b'\\0', b'\0') |
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60 text = text.replace(b'\n', b'') |
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61 return stringutil.unescapestr(text) |
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62 |
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63 |
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64 def decodeextra(text): |
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65 """ |
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66 >>> from .pycompat import bytechr as chr |
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67 >>> sorted(decodeextra(encodeextra({b'foo': b'bar', b'baz': chr(0) + b'2'}) |
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68 ... ).items()) |
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69 [('baz', '\\x002'), ('branch', 'default'), ('foo', 'bar')] |
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70 >>> sorted(decodeextra(encodeextra({b'foo': b'bar', |
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71 ... b'baz': chr(92) + chr(0) + b'2'}) |
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72 ... ).items()) |
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73 [('baz', '\\\\\\x002'), ('branch', 'default'), ('foo', 'bar')] |
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74 """ |
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75 extra = _defaultextra.copy() |
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76 for l in text.split(b'\0'): |
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77 if l: |
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78 k, v = _string_unescape(l).split(b':', 1) |
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79 extra[k] = v |
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80 return extra |
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81 |
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82 |
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83 def encodeextra(d): |
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84 # keys must be sorted to produce a deterministic changelog entry |
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85 items = [ |
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86 _string_escape(b'%s:%s' % (k, pycompat.bytestr(d[k]))) |
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87 for k in sorted(d) |
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88 ] |
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89 return b"\0".join(items) |
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90 |
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91 |
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92 def encodecopies(files, copies): |
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93 items = [] |
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94 for i, dst in enumerate(files): |
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95 if dst in copies: |
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96 items.append(b'%d\0%s' % (i, copies[dst])) |
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97 if len(items) != len(copies): |
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98 raise error.ProgrammingError( |
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99 b'some copy targets missing from file list' |
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100 ) |
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101 return b"\n".join(items) |
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102 |
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103 |
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104 def decodecopies(files, data): |
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105 try: |
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106 copies = {} |
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107 if not data: |
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108 return copies |
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109 for l in data.split(b'\n'): |
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110 strindex, src = l.split(b'\0') |
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111 i = int(strindex) |
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112 dst = files[i] |
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113 copies[dst] = src |
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114 return copies |
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115 except (ValueError, IndexError): |
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116 # Perhaps someone had chosen the same key name (e.g. "p1copies") and |
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117 # used different syntax for the value. |
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118 return None |
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119 |
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120 |
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121 def encodefileindices(files, subset): |
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122 subset = set(subset) |
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123 indices = [] |
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124 for i, f in enumerate(files): |
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125 if f in subset: |
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126 indices.append(b'%d' % i) |
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127 return b'\n'.join(indices) |
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128 |
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129 |
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130 def decodefileindices(files, data): |
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131 try: |
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132 subset = [] |
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133 if not data: |
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134 return subset |
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135 for strindex in data.split(b'\n'): |
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136 i = int(strindex) |
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137 if i < 0 or i >= len(files): |
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138 return None |
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139 subset.append(files[i]) |
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140 return subset |
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141 except (ValueError, IndexError): |
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142 # Perhaps someone had chosen the same key name (e.g. "added") and |
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143 # used different syntax for the value. |
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144 return None |
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145 |
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146 |
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147 def stripdesc(desc): |
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148 """strip trailing whitespace and leading and trailing empty lines""" |
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149 return b'\n'.join([l.rstrip() for l in desc.splitlines()]).strip(b'\n') |
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150 |
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151 |
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152 class appender(object): |
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153 '''the changelog index must be updated last on disk, so we use this class |
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154 to delay writes to it''' |
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155 |
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156 def __init__(self, vfs, name, mode, buf): |
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157 self.data = buf |
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158 fp = vfs(name, mode) |
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159 self.fp = fp |
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160 self.offset = fp.tell() |
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161 self.size = vfs.fstat(fp).st_size |
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162 self._end = self.size |
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163 |
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164 def end(self): |
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165 return self._end |
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166 |
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167 def tell(self): |
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168 return self.offset |
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169 |
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170 def flush(self): |
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171 pass |
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172 |
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173 @property |
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174 def closed(self): |
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175 return self.fp.closed |
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176 |
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177 def close(self): |
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178 self.fp.close() |
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179 |
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180 def seek(self, offset, whence=0): |
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181 '''virtual file offset spans real file and data''' |
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182 if whence == 0: |
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183 self.offset = offset |
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184 elif whence == 1: |
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185 self.offset += offset |
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186 elif whence == 2: |
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187 self.offset = self.end() + offset |
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188 if self.offset < self.size: |
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189 self.fp.seek(self.offset) |
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190 |
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191 def read(self, count=-1): |
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192 '''only trick here is reads that span real file and data''' |
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193 ret = b"" |
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194 if self.offset < self.size: |
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195 s = self.fp.read(count) |
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196 ret = s |
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197 self.offset += len(s) |
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198 if count > 0: |
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199 count -= len(s) |
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200 if count != 0: |
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201 doff = self.offset - self.size |
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202 self.data.insert(0, b"".join(self.data)) |
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203 del self.data[1:] |
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204 s = self.data[0][doff : doff + count] |
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205 self.offset += len(s) |
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206 ret += s |
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207 return ret |
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208 |
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209 def write(self, s): |
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210 self.data.append(bytes(s)) |
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211 self.offset += len(s) |
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212 self._end += len(s) |
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213 |
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214 def __enter__(self): |
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215 self.fp.__enter__() |
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216 return self |
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217 |
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218 def __exit__(self, *args): |
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219 return self.fp.__exit__(*args) |
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220 |
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221 |
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222 def _divertopener(opener, target): |
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223 """build an opener that writes in 'target.a' instead of 'target'""" |
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224 |
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225 def _divert(name, mode=b'r', checkambig=False): |
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226 if name != target: |
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227 return opener(name, mode) |
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228 return opener(name + b".a", mode) |
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229 |
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230 return _divert |
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231 |
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232 |
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233 def _delayopener(opener, target, buf): |
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234 """build an opener that stores chunks in 'buf' instead of 'target'""" |
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235 |
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236 def _delay(name, mode=b'r', checkambig=False): |
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237 if name != target: |
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238 return opener(name, mode) |
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239 return appender(opener, name, mode, buf) |
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240 |
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241 return _delay |
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242 |
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243 |
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244 @attr.s |
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245 class _changelogrevision(object): |
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246 # Extensions might modify _defaultextra, so let the constructor below pass |
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247 # it in |
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248 extra = attr.ib() |
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249 manifest = attr.ib(default=nullid) |
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250 user = attr.ib(default=b'') |
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251 date = attr.ib(default=(0, 0)) |
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252 files = attr.ib(default=attr.Factory(list)) |
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253 filesadded = attr.ib(default=None) |
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254 filesremoved = attr.ib(default=None) |
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255 p1copies = attr.ib(default=None) |
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256 p2copies = attr.ib(default=None) |
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257 description = attr.ib(default=b'') |
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258 |
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259 |
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260 class changelogrevision(object): |
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261 """Holds results of a parsed changelog revision. |
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262 |
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263 Changelog revisions consist of multiple pieces of data, including |
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264 the manifest node, user, and date. This object exposes a view into |
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265 the parsed object. |
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266 """ |
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267 |
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268 __slots__ = ( |
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269 r'_offsets', |
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270 r'_text', |
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271 r'_sidedata', |
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272 ) |
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273 |
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274 def __new__(cls, text, sidedata): |
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275 if not text: |
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276 return _changelogrevision(extra=_defaultextra) |
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277 |
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278 self = super(changelogrevision, cls).__new__(cls) |
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279 # We could return here and implement the following as an __init__. |
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280 # But doing it here is equivalent and saves an extra function call. |
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281 |
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282 # format used: |
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283 # nodeid\n : manifest node in ascii |
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284 # user\n : user, no \n or \r allowed |
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285 # time tz extra\n : date (time is int or float, timezone is int) |
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286 # : extra is metadata, encoded and separated by '\0' |
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287 # : older versions ignore it |
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288 # files\n\n : files modified by the cset, no \n or \r allowed |
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289 # (.*) : comment (free text, ideally utf-8) |
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290 # |
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291 # changelog v0 doesn't use extra |
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292 |
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293 nl1 = text.index(b'\n') |
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294 nl2 = text.index(b'\n', nl1 + 1) |
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295 nl3 = text.index(b'\n', nl2 + 1) |
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296 |
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297 # The list of files may be empty. Which means nl3 is the first of the |
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298 # double newline that precedes the description. |
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299 if text[nl3 + 1 : nl3 + 2] == b'\n': |
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300 doublenl = nl3 |
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301 else: |
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302 doublenl = text.index(b'\n\n', nl3 + 1) |
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303 |
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304 self._offsets = (nl1, nl2, nl3, doublenl) |
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305 self._text = text |
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306 self._sidedata = sidedata |
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307 |
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308 return self |
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309 |
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310 @property |
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311 def manifest(self): |
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312 return bin(self._text[0 : self._offsets[0]]) |
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313 |
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314 @property |
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315 def user(self): |
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316 off = self._offsets |
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317 return encoding.tolocal(self._text[off[0] + 1 : off[1]]) |
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318 |
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319 @property |
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320 def _rawdate(self): |
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321 off = self._offsets |
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322 dateextra = self._text[off[1] + 1 : off[2]] |
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323 return dateextra.split(b' ', 2)[0:2] |
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324 |
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325 @property |
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326 def _rawextra(self): |
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327 off = self._offsets |
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328 dateextra = self._text[off[1] + 1 : off[2]] |
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329 fields = dateextra.split(b' ', 2) |
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330 if len(fields) != 3: |
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331 return None |
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332 |
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333 return fields[2] |
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334 |
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335 @property |
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336 def date(self): |
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337 raw = self._rawdate |
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338 time = float(raw[0]) |
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339 # Various tools did silly things with the timezone. |
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|
340 try: |
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|
341 timezone = int(raw[1]) |
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|
342 except ValueError: |
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|
343 timezone = 0 |
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|
344 |
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|
345 return time, timezone |
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|
346 |
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|
347 @property |
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348 def extra(self): |
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|
349 raw = self._rawextra |
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|
350 if raw is None: |
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351 return _defaultextra |
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|
352 |
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353 return decodeextra(raw) |
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|
354 |
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|
355 @property |
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|
356 def files(self): |
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|
357 off = self._offsets |
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|
358 if off[2] == off[3]: |
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|
359 return [] |
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|
360 |
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|
361 return self._text[off[2] + 1 : off[3]].split(b'\n') |
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|
362 |
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|
363 @property |
42426
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|
364 def filesadded(self): |
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|
365 rawindices = self.extra.get(b'filesadded') |
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|
366 if rawindices is None: |
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367 return None |
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|
368 return decodefileindices(self.files, rawindices) |
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|
369 |
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|
370 @property |
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|
371 def filesremoved(self): |
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|
372 rawindices = self.extra.get(b'filesremoved') |
43145
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|
373 if rawindices is None: |
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|
374 return None |
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|
375 return decodefileindices(self.files, rawindices) |
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|
376 |
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|
377 @property |
42142
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|
378 def p1copies(self): |
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|
379 rawcopies = self.extra.get(b'p1copies') |
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|
380 if rawcopies is None: |
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|
381 return None |
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|
382 return decodecopies(self.files, rawcopies) |
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diff
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|
383 |
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diff
changeset
|
384 @property |
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|
385 def p2copies(self): |
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|
386 rawcopies = self.extra.get(b'p2copies') |
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|
387 if rawcopies is None: |
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|
388 return None |
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|
389 return decodecopies(self.files, rawcopies) |
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|
390 |
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diff
changeset
|
391 @property |
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|
392 def description(self): |
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|
393 return encoding.tolocal(self._text[self._offsets[3] + 2 :]) |
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|
394 |
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diff
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|
395 |
7634
14a4337a9b9b
revlog: kill from-style imports
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parents:
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diff
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|
396 class changelog(revlog.revlog): |
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|
397 def __init__(self, opener, trypending=False): |
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|
398 """Load a changelog revlog using an opener. |
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|
399 |
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|
400 If ``trypending`` is true, we attempt to load the index from a |
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diff
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|
401 ``00changelog.i.a`` file instead of the default ``00changelog.i``. |
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diff
changeset
|
402 The ``00changelog.i.a`` file contains index (and possibly inline |
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diff
changeset
|
403 revision) data for a transaction that hasn't been finalized yet. |
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parents:
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diff
changeset
|
404 It exists in a separate file to facilitate readers (such as |
0ad0d26ff703
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diff
changeset
|
405 hooks processes) accessing data before a transaction is finalized. |
0ad0d26ff703
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parents:
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diff
changeset
|
406 """ |
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|
407 if trypending and opener.exists(b'00changelog.i.a'): |
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changeset
|
408 indexfile = b'00changelog.i.a' |
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|
409 else: |
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changeset
|
410 indexfile = b'00changelog.i' |
32332
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changeset
|
411 |
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changeset
|
412 datafile = b'00changelog.d' |
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diff
changeset
|
413 revlog.revlog.__init__( |
2372284d9457
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parents:
43029
diff
changeset
|
414 self, |
2372284d9457
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43029
diff
changeset
|
415 opener, |
2372284d9457
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parents:
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diff
changeset
|
416 indexfile, |
2372284d9457
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parents:
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diff
changeset
|
417 datafile=datafile, |
2372284d9457
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parents:
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diff
changeset
|
418 checkambig=True, |
2372284d9457
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parents:
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diff
changeset
|
419 mmaplargeindex=True, |
2372284d9457
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parents:
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diff
changeset
|
420 ) |
32332
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diff
changeset
|
421 |
41202
e7a2cc84dbc0
revlog: always enable generaldelta on version 2 revlogs
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parents:
39892
diff
changeset
|
422 if self._initempty and (self.version & 0xFFFF == revlog.REVLOGV1): |
e7a2cc84dbc0
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diff
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|
423 # changelogs don't benefit from generaldelta. |
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diff
changeset
|
424 |
32355
67026d65a4fc
revlog: rename constants (API)
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parents:
32347
diff
changeset
|
425 self.version &= ~revlog.FLAG_GENERALDELTA |
14334
85c82ebc96a3
changelog: don't use generaldelta
Sune Foldager <cryo@cyanite.org>
parents:
14207
diff
changeset
|
426 self._generaldelta = False |
30155
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changelog: disable delta chains
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parents:
30004
diff
changeset
|
427 |
b7a966ce89ed
changelog: disable delta chains
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parents:
30004
diff
changeset
|
428 # Delta chains for changelogs tend to be very small because entries |
b7a966ce89ed
changelog: disable delta chains
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parents:
30004
diff
changeset
|
429 # tend to be small and don't delta well with each. So disable delta |
b7a966ce89ed
changelog: disable delta chains
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parents:
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diff
changeset
|
430 # chains. |
39260
0a5b20c107a6
repository: remove storedeltachains from ifilestorage
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parents:
39229
diff
changeset
|
431 self._storedeltachains = False |
30155
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parents:
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diff
changeset
|
432 |
8644
c2ef478b2efa
changelog: make delayopener less intrusive
Matt Mackall <mpm@selenic.com>
parents:
8499
diff
changeset
|
433 self._realopener = opener |
c2ef478b2efa
changelog: make delayopener less intrusive
Matt Mackall <mpm@selenic.com>
parents:
8499
diff
changeset
|
434 self._delayed = False |
23201
7e97bf6ee2d6
changelog: rework the delayupdate mechanism
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
23088
diff
changeset
|
435 self._delaybuf = None |
9163
f193b643d1b1
changelog: _delaycount -> _divert
Matt Mackall <mpm@selenic.com>
parents:
8778
diff
changeset
|
436 self._divert = False |
18231
c0c943ef4e55
clfilter: use empty frozenset intead of empty tuple
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
17951
diff
changeset
|
437 self.filteredrevs = frozenset() |
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parents:
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diff
changeset
|
438 self._copiesstorage = opener.options.get(b'copies-storage') |
17677
5c89e7fa5bc2
clfilter: introduce `filteredrevs` attribute on changelog
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parents:
17424
diff
changeset
|
439 |
35671
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changelog: introduce a 'tiprev' method
Boris Feld <boris.feld@octobus.net>
parents:
35317
diff
changeset
|
440 def tiprev(self): |
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diff
changeset
|
441 for i in pycompat.xrange(len(self) - 1, -2, -1): |
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diff
changeset
|
442 if i not in self.filteredrevs: |
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35317
diff
changeset
|
443 return i |
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parents:
35317
diff
changeset
|
444 |
17677
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diff
changeset
|
445 def tip(self): |
5c89e7fa5bc2
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diff
changeset
|
446 """filtered version of revlog.tip""" |
35672
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changelog: use 'tiprev()' in 'tip()'
Boris Feld <boris.feld@octobus.net>
parents:
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diff
changeset
|
447 return self.node(self.tiprev()) |
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parents:
17424
diff
changeset
|
448 |
24030
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revlog: add __contains__ for fast membership test
Yuya Nishihara <yuya@tcha.org>
parents:
23292
diff
changeset
|
449 def __contains__(self, rev): |
828dc8db5515
revlog: add __contains__ for fast membership test
Yuya Nishihara <yuya@tcha.org>
parents:
23292
diff
changeset
|
450 """filtered version of revlog.__contains__""" |
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changeset
|
451 return 0 <= rev < len(self) and rev not in self.filteredrevs |
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parents:
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diff
changeset
|
452 |
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453 def __iter__(self): |
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454 """filtered version of revlog.__iter__""" |
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455 if len(self.filteredrevs) == 0: |
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456 return revlog.revlog.__iter__(self) |
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457 |
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458 def filterediter(): |
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459 for i in pycompat.xrange(len(self)): |
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460 if i not in self.filteredrevs: |
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461 yield i |
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462 |
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463 return filterediter() |
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464 |
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465 def revs(self, start=0, stop=None): |
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466 """filtered version of revlog.revs""" |
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467 for i in super(changelog, self).revs(start, stop): |
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468 if i not in self.filteredrevs: |
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469 yield i |
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470 |
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471 def _checknofilteredinrevs(self, revs): |
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472 """raise the appropriate error if 'revs' contains a filtered revision |
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473 |
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474 This returns a version of 'revs' to be used thereafter by the caller. |
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475 In particular, if revs is an iterator, it is converted into a set. |
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476 """ |
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477 safehasattr = util.safehasattr |
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478 if safehasattr(revs, '__next__'): |
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479 # Note that inspect.isgenerator() is not true for iterators, |
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480 revs = set(revs) |
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481 |
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482 filteredrevs = self.filteredrevs |
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483 if safehasattr(revs, 'first'): # smartset |
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484 offenders = revs & filteredrevs |
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485 else: |
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486 offenders = filteredrevs.intersection(revs) |
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487 |
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488 for rev in offenders: |
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489 raise error.FilteredIndexError(rev) |
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490 return revs |
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491 |
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492 def headrevs(self, revs=None): |
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493 if revs is None and self.filteredrevs: |
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494 try: |
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495 return self.index.headrevsfiltered(self.filteredrevs) |
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496 # AttributeError covers non-c-extension environments and |
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497 # old c extensions without filter handling. |
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498 except AttributeError: |
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499 return self._headrevs() |
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500 |
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501 if self.filteredrevs: |
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502 revs = self._checknofilteredinrevs(revs) |
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503 return super(changelog, self).headrevs(revs) |
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504 |
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505 def strip(self, *args, **kwargs): |
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506 # XXX make something better than assert |
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507 # We can't expect proper strip behavior if we are filtered. |
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508 assert not self.filteredrevs |
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509 super(changelog, self).strip(*args, **kwargs) |
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510 |
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511 def rev(self, node): |
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512 """filtered version of revlog.rev""" |
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513 r = super(changelog, self).rev(node) |
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514 if r in self.filteredrevs: |
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515 raise error.FilteredLookupError( |
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516 hex(node), self.indexfile, _(b'filtered node') |
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517 ) |
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518 return r |
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519 |
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520 def node(self, rev): |
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521 """filtered version of revlog.node""" |
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522 if rev in self.filteredrevs: |
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523 raise error.FilteredIndexError(rev) |
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524 return super(changelog, self).node(rev) |
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525 |
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526 def linkrev(self, rev): |
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527 """filtered version of revlog.linkrev""" |
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528 if rev in self.filteredrevs: |
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529 raise error.FilteredIndexError(rev) |
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530 return super(changelog, self).linkrev(rev) |
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531 |
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532 def parentrevs(self, rev): |
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533 """filtered version of revlog.parentrevs""" |
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534 if rev in self.filteredrevs: |
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535 raise error.FilteredIndexError(rev) |
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536 return super(changelog, self).parentrevs(rev) |
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537 |
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538 def flags(self, rev): |
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539 """filtered version of revlog.flags""" |
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540 if rev in self.filteredrevs: |
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541 raise error.FilteredIndexError(rev) |
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542 return super(changelog, self).flags(rev) |
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543 |
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544 def delayupdate(self, tr): |
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545 b"delay visibility of index updates to other readers" |
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546 |
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547 if not self._delayed: |
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548 if len(self) == 0: |
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549 self._divert = True |
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550 if self._realopener.exists(self.indexfile + b'.a'): |
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551 self._realopener.unlink(self.indexfile + b'.a') |
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552 self.opener = _divertopener(self._realopener, self.indexfile) |
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553 else: |
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554 self._delaybuf = [] |
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555 self.opener = _delayopener( |
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556 self._realopener, self.indexfile, self._delaybuf |
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557 ) |
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558 self._delayed = True |
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559 tr.addpending(b'cl-%i' % id(self), self._writepending) |
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diff
changeset
|
560 tr.addfinalize(b'cl-%i' % id(self), self._finalize) |
4261
cd7b36b7869c
restructure changelog file appending
Matt Mackall <mpm@selenic.com>
parents:
4258
diff
changeset
|
561 |
23205
2d54aa5397cd
changelog: rely on transaction for finalization
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
23203
diff
changeset
|
562 def _finalize(self, tr): |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
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diff
changeset
|
563 b"finalize index updates" |
8644
c2ef478b2efa
changelog: make delayopener less intrusive
Matt Mackall <mpm@selenic.com>
parents:
8499
diff
changeset
|
564 self._delayed = False |
9165
07f9b2f4a9aa
changelog: swap opener to switch delay modes
Matt Mackall <mpm@selenic.com>
parents:
9164
diff
changeset
|
565 self.opener = self._realopener |
4269
73c918c71300
changelog: optimize delayed updates for clone vs pull
Matt Mackall <mpm@selenic.com>
parents:
4261
diff
changeset
|
566 # move redirected index data back into place |
9164
b0d995b6b0a6
changelog: factor out _delayname
Matt Mackall <mpm@selenic.com>
parents:
9163
diff
changeset
|
567 if self._divert: |
23201
7e97bf6ee2d6
changelog: rework the delayupdate mechanism
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
23088
diff
changeset
|
568 assert not self._delaybuf |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
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diff
changeset
|
569 tmpname = self.indexfile + b".a" |
19898
3f92e749d381
changelog: use "vfs.rename()" instead of "util.rename()"
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
18587
diff
changeset
|
570 nfile = self.opener.open(tmpname) |
14207
c1cca38818b9
changelog: fixes leaked file handle
Zachary Gramana <zgramana@pottsconsultinggroup.com>
parents:
14004
diff
changeset
|
571 nfile.close() |
30003
003c41edc5f5
changelog: specify checkambig=True to avoid ambiguity around truncation
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
30001
diff
changeset
|
572 self.opener.rename(tmpname, self.indexfile, checkambig=True) |
4269
73c918c71300
changelog: optimize delayed updates for clone vs pull
Matt Mackall <mpm@selenic.com>
parents:
4261
diff
changeset
|
573 elif self._delaybuf: |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
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diff
changeset
|
574 fp = self.opener(self.indexfile, b'a', checkambig=True) |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
575 fp.write(b"".join(self._delaybuf)) |
4261
cd7b36b7869c
restructure changelog file appending
Matt Mackall <mpm@selenic.com>
parents:
4258
diff
changeset
|
576 fp.close() |
23201
7e97bf6ee2d6
changelog: rework the delayupdate mechanism
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
23088
diff
changeset
|
577 self._delaybuf = None |
7e97bf6ee2d6
changelog: rework the delayupdate mechanism
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
23088
diff
changeset
|
578 self._divert = False |
4269
73c918c71300
changelog: optimize delayed updates for clone vs pull
Matt Mackall <mpm@selenic.com>
parents:
4261
diff
changeset
|
579 # split when we're done |
36013
9ba1d0c724e2
revlog: rename 'self.checkinlinesize' into '_enforceinlinesize'
Boris Feld <boris.feld@octobus.net>
parents:
36002
diff
changeset
|
580 self._enforceinlinesize(tr) |
4261
cd7b36b7869c
restructure changelog file appending
Matt Mackall <mpm@selenic.com>
parents:
4258
diff
changeset
|
581 |
23280
b01c491af0cf
transaction: pass the transaction to 'pending' callback
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
23205
diff
changeset
|
582 def _writepending(self, tr): |
43077
687b865b95ad
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Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
583 b"create a file containing the unfinalized state for pretxnchangegroup" |
7787
b8d750daadde
Introduce HG_PREPEND to solve pretxn races
Matt Mackall <mpm@selenic.com>
parents:
7634
diff
changeset
|
584 if self._delaybuf: |
b8d750daadde
Introduce HG_PREPEND to solve pretxn races
Matt Mackall <mpm@selenic.com>
parents:
7634
diff
changeset
|
585 # make a temporary copy of the index |
b8d750daadde
Introduce HG_PREPEND to solve pretxn races
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parents:
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diff
changeset
|
586 fp1 = self._realopener(self.indexfile) |
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parents:
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changeset
|
587 pendingfilename = self.indexfile + b".a" |
23292
e44399c494ab
changelog: register changelog.i.a as a temporary file
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
23281
diff
changeset
|
588 # register as a temp file to ensure cleanup on failure |
e44399c494ab
changelog: register changelog.i.a as a temporary file
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
23281
diff
changeset
|
589 tr.registertmp(pendingfilename) |
e44399c494ab
changelog: register changelog.i.a as a temporary file
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
23281
diff
changeset
|
590 # write existing data |
43077
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parents:
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diff
changeset
|
591 fp2 = self._realopener(pendingfilename, b"w") |
7787
b8d750daadde
Introduce HG_PREPEND to solve pretxn races
Matt Mackall <mpm@selenic.com>
parents:
7634
diff
changeset
|
592 fp2.write(fp1.read()) |
b8d750daadde
Introduce HG_PREPEND to solve pretxn races
Matt Mackall <mpm@selenic.com>
parents:
7634
diff
changeset
|
593 # add pending data |
43077
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parents:
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diff
changeset
|
594 fp2.write(b"".join(self._delaybuf)) |
7787
b8d750daadde
Introduce HG_PREPEND to solve pretxn races
Matt Mackall <mpm@selenic.com>
parents:
7634
diff
changeset
|
595 fp2.close() |
b8d750daadde
Introduce HG_PREPEND to solve pretxn races
Matt Mackall <mpm@selenic.com>
parents:
7634
diff
changeset
|
596 # switch modes so finalize can simply rename |
23201
7e97bf6ee2d6
changelog: rework the delayupdate mechanism
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
23088
diff
changeset
|
597 self._delaybuf = None |
9164
b0d995b6b0a6
changelog: factor out _delayname
Matt Mackall <mpm@selenic.com>
parents:
9163
diff
changeset
|
598 self._divert = True |
23201
7e97bf6ee2d6
changelog: rework the delayupdate mechanism
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
23088
diff
changeset
|
599 self.opener = _divertopener(self._realopener, self.indexfile) |
7787
b8d750daadde
Introduce HG_PREPEND to solve pretxn races
Matt Mackall <mpm@selenic.com>
parents:
7634
diff
changeset
|
600 |
9164
b0d995b6b0a6
changelog: factor out _delayname
Matt Mackall <mpm@selenic.com>
parents:
9163
diff
changeset
|
601 if self._divert: |
7787
b8d750daadde
Introduce HG_PREPEND to solve pretxn races
Matt Mackall <mpm@selenic.com>
parents:
7634
diff
changeset
|
602 return True |
b8d750daadde
Introduce HG_PREPEND to solve pretxn races
Matt Mackall <mpm@selenic.com>
parents:
7634
diff
changeset
|
603 |
b8d750daadde
Introduce HG_PREPEND to solve pretxn races
Matt Mackall <mpm@selenic.com>
parents:
7634
diff
changeset
|
604 return False |
b8d750daadde
Introduce HG_PREPEND to solve pretxn races
Matt Mackall <mpm@selenic.com>
parents:
7634
diff
changeset
|
605 |
36013
9ba1d0c724e2
revlog: rename 'self.checkinlinesize' into '_enforceinlinesize'
Boris Feld <boris.feld@octobus.net>
parents:
36002
diff
changeset
|
606 def _enforceinlinesize(self, tr, fp=None): |
9165
07f9b2f4a9aa
changelog: swap opener to switch delay modes
Matt Mackall <mpm@selenic.com>
parents:
9164
diff
changeset
|
607 if not self._delayed: |
36013
9ba1d0c724e2
revlog: rename 'self.checkinlinesize' into '_enforceinlinesize'
Boris Feld <boris.feld@octobus.net>
parents:
36002
diff
changeset
|
608 revlog.revlog._enforceinlinesize(self, tr, fp) |
4261
cd7b36b7869c
restructure changelog file appending
Matt Mackall <mpm@selenic.com>
parents:
4258
diff
changeset
|
609 |
5744
9db7fd77417d
changelog: remove extract function
Matt Mackall <mpm@selenic.com>
parents:
5450
diff
changeset
|
610 def read(self, node): |
28487
98d98a645e9d
changelog: add class to represent parsed changelog revisions
Gregory Szorc <gregory.szorc@gmail.com>
parents:
28315
diff
changeset
|
611 """Obtain data from a parsed changelog revision. |
98d98a645e9d
changelog: add class to represent parsed changelog revisions
Gregory Szorc <gregory.szorc@gmail.com>
parents:
28315
diff
changeset
|
612 |
98d98a645e9d
changelog: add class to represent parsed changelog revisions
Gregory Szorc <gregory.szorc@gmail.com>
parents:
28315
diff
changeset
|
613 Returns a 6-tuple of: |
3233
2f35961854fb
[extendedchangelog] add extra metadata in the changelog entry
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3232
diff
changeset
|
614 |
28487
98d98a645e9d
changelog: add class to represent parsed changelog revisions
Gregory Szorc <gregory.szorc@gmail.com>
parents:
28315
diff
changeset
|
615 - manifest node in binary |
98d98a645e9d
changelog: add class to represent parsed changelog revisions
Gregory Szorc <gregory.szorc@gmail.com>
parents:
28315
diff
changeset
|
616 - author/user as a localstr |
98d98a645e9d
changelog: add class to represent parsed changelog revisions
Gregory Szorc <gregory.szorc@gmail.com>
parents:
28315
diff
changeset
|
617 - date as a 2-tuple of (time, timezone) |
98d98a645e9d
changelog: add class to represent parsed changelog revisions
Gregory Szorc <gregory.szorc@gmail.com>
parents:
28315
diff
changeset
|
618 - list of files |
98d98a645e9d
changelog: add class to represent parsed changelog revisions
Gregory Szorc <gregory.szorc@gmail.com>
parents:
28315
diff
changeset
|
619 - commit message as a localstr |
98d98a645e9d
changelog: add class to represent parsed changelog revisions
Gregory Szorc <gregory.szorc@gmail.com>
parents:
28315
diff
changeset
|
620 - dict of extra metadata |
98d98a645e9d
changelog: add class to represent parsed changelog revisions
Gregory Szorc <gregory.szorc@gmail.com>
parents:
28315
diff
changeset
|
621 |
98d98a645e9d
changelog: add class to represent parsed changelog revisions
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parents:
28315
diff
changeset
|
622 Unless you need to access all fields, consider calling |
98d98a645e9d
changelog: add class to represent parsed changelog revisions
Gregory Szorc <gregory.szorc@gmail.com>
parents:
28315
diff
changeset
|
623 ``changelogrevision`` instead, as it is faster for partial object |
98d98a645e9d
changelog: add class to represent parsed changelog revisions
Gregory Szorc <gregory.szorc@gmail.com>
parents:
28315
diff
changeset
|
624 access. |
3077
ad6aecaf4eed
document changelog format
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
2859
diff
changeset
|
625 """ |
43143
037a8759eda1
sidedatacopies: get and store sidedata in the changelogrevision object
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
43142
diff
changeset
|
626 c = changelogrevision(*self._revisiondata(node)) |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
43029
diff
changeset
|
627 return (c.manifest, c.user, c.date, c.files, c.description, c.extra) |
3233
2f35961854fb
[extendedchangelog] add extra metadata in the changelog entry
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3232
diff
changeset
|
628 |
28487
98d98a645e9d
changelog: add class to represent parsed changelog revisions
Gregory Szorc <gregory.szorc@gmail.com>
parents:
28315
diff
changeset
|
629 def changelogrevision(self, nodeorrev): |
98d98a645e9d
changelog: add class to represent parsed changelog revisions
Gregory Szorc <gregory.szorc@gmail.com>
parents:
28315
diff
changeset
|
630 """Obtain a ``changelogrevision`` for a node or revision.""" |
43143
037a8759eda1
sidedatacopies: get and store sidedata in the changelogrevision object
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
43142
diff
changeset
|
631 text, sidedata = self._revisiondata(nodeorrev) |
037a8759eda1
sidedatacopies: get and store sidedata in the changelogrevision object
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
43142
diff
changeset
|
632 return changelogrevision(text, sidedata) |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
633 |
27439
ed003859f1d8
changelog: add a new method to get files modified by a changeset
Laurent Charignon <lcharignon@fb.com>
parents:
26094
diff
changeset
|
634 def readfiles(self, node): |
ed003859f1d8
changelog: add a new method to get files modified by a changeset
Laurent Charignon <lcharignon@fb.com>
parents:
26094
diff
changeset
|
635 """ |
ed003859f1d8
changelog: add a new method to get files modified by a changeset
Laurent Charignon <lcharignon@fb.com>
parents:
26094
diff
changeset
|
636 short version of read that only returns the files modified by the cset |
ed003859f1d8
changelog: add a new method to get files modified by a changeset
Laurent Charignon <lcharignon@fb.com>
parents:
26094
diff
changeset
|
637 """ |
ed003859f1d8
changelog: add a new method to get files modified by a changeset
Laurent Charignon <lcharignon@fb.com>
parents:
26094
diff
changeset
|
638 text = self.revision(node) |
ed003859f1d8
changelog: add a new method to get files modified by a changeset
Laurent Charignon <lcharignon@fb.com>
parents:
26094
diff
changeset
|
639 if not text: |
ed003859f1d8
changelog: add a new method to get files modified by a changeset
Laurent Charignon <lcharignon@fb.com>
parents:
26094
diff
changeset
|
640 return [] |
43077
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Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
641 last = text.index(b"\n\n") |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
642 l = text[:last].split(b'\n') |
27439
ed003859f1d8
changelog: add a new method to get files modified by a changeset
Laurent Charignon <lcharignon@fb.com>
parents:
26094
diff
changeset
|
643 return l[3:] |
ed003859f1d8
changelog: add a new method to get files modified by a changeset
Laurent Charignon <lcharignon@fb.com>
parents:
26094
diff
changeset
|
644 |
43076
2372284d9457
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Augie Fackler <augie@google.com>
parents:
43029
diff
changeset
|
645 def add( |
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
43029
diff
changeset
|
646 self, |
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
43029
diff
changeset
|
647 manifest, |
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
43029
diff
changeset
|
648 files, |
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
43029
diff
changeset
|
649 desc, |
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
43029
diff
changeset
|
650 transaction, |
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
43029
diff
changeset
|
651 p1, |
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
43029
diff
changeset
|
652 p2, |
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
43029
diff
changeset
|
653 user, |
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
43029
diff
changeset
|
654 date=None, |
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
43029
diff
changeset
|
655 extra=None, |
2372284d9457
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Augie Fackler <augie@google.com>
parents:
43029
diff
changeset
|
656 p1copies=None, |
2372284d9457
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Augie Fackler <augie@google.com>
parents:
43029
diff
changeset
|
657 p2copies=None, |
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
43029
diff
changeset
|
658 filesadded=None, |
2372284d9457
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Augie Fackler <augie@google.com>
parents:
43029
diff
changeset
|
659 filesremoved=None, |
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
43029
diff
changeset
|
660 ): |
14379
bd23d5f28bbb
changelog: convert user and desc from local encoding early
Martin Geisler <mg@aragost.com>
parents:
10420
diff
changeset
|
661 # Convert to UTF-8 encoded bytestrings as the very first |
bd23d5f28bbb
changelog: convert user and desc from local encoding early
Martin Geisler <mg@aragost.com>
parents:
10420
diff
changeset
|
662 # thing: calling any method on a localstr object will turn it |
bd23d5f28bbb
changelog: convert user and desc from local encoding early
Martin Geisler <mg@aragost.com>
parents:
10420
diff
changeset
|
663 # into a str object and the cached UTF-8 string is thus lost. |
bd23d5f28bbb
changelog: convert user and desc from local encoding early
Martin Geisler <mg@aragost.com>
parents:
10420
diff
changeset
|
664 user, desc = encoding.fromlocal(user), encoding.fromlocal(desc) |
bd23d5f28bbb
changelog: convert user and desc from local encoding early
Martin Geisler <mg@aragost.com>
parents:
10420
diff
changeset
|
665 |
7035
9d023ef7b467
forbid username with '\n' at the changelog level
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6259
diff
changeset
|
666 user = user.strip() |
8424
c5b3d3e30de7
changelog: refuse to add revisions with empty usernames
Martin Geisler <mg@lazybytes.net>
parents:
7807
diff
changeset
|
667 # An empty username or a username with a "\n" will make the |
c5b3d3e30de7
changelog: refuse to add revisions with empty usernames
Martin Geisler <mg@lazybytes.net>
parents:
7807
diff
changeset
|
668 # revision text contain two "\n\n" sequences -> corrupt |
c5b3d3e30de7
changelog: refuse to add revisions with empty usernames
Martin Geisler <mg@lazybytes.net>
parents:
7807
diff
changeset
|
669 # repository since read cannot unpack the revision. |
c5b3d3e30de7
changelog: refuse to add revisions with empty usernames
Martin Geisler <mg@lazybytes.net>
parents:
7807
diff
changeset
|
670 if not user: |
43077
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Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
671 raise error.StorageError(_(b"empty username")) |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
672 if b"\n" in user: |
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673 raise error.StorageError( |
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674 _(b"username %r contains a newline") % pycompat.bytestr(user) |
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675 ) |
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676 |
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677 desc = stripdesc(desc) |
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678 |
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679 if date: |
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680 parseddate = b"%d %d" % dateutil.parsedate(date) |
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681 else: |
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682 parseddate = b"%d %d" % dateutil.makedate() |
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683 if extra: |
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684 branch = extra.get(b"branch") |
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685 if branch in (b"default", b""): |
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686 del extra[b"branch"] |
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687 elif branch in (b".", b"null", b"tip"): |
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688 raise error.StorageError( |
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689 _(b'the name \'%s\' is reserved') % branch |
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690 ) |
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691 sortedfiles = sorted(files) |
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692 sidedata = None |
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693 if extra is not None: |
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694 for name in ( |
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695 b'p1copies', |
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696 b'p2copies', |
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697 b'filesadded', |
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698 b'filesremoved', |
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699 ): |
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700 extra.pop(name, None) |
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701 if p1copies is not None: |
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702 p1copies = encodecopies(sortedfiles, p1copies) |
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703 if p2copies is not None: |
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704 p2copies = encodecopies(sortedfiles, p2copies) |
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705 if filesadded is not None: |
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706 filesadded = encodefileindices(sortedfiles, filesadded) |
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707 if filesremoved is not None: |
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708 filesremoved = encodefileindices(sortedfiles, filesremoved) |
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709 if self._copiesstorage == b'extra': |
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710 extrasentries = p1copies, p2copies, filesadded, filesremoved |
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711 if extra is None and any(x is not None for x in extrasentries): |
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712 extra = {} |
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713 if p1copies is not None: |
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714 extra[b'p1copies'] = p1copies |
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715 if p2copies is not None: |
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716 extra[b'p2copies'] = p2copies |
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717 if filesadded is not None: |
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718 extra[b'filesadded'] = filesadded |
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719 if filesremoved is not None: |
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720 extra[b'filesremoved'] = filesremoved |
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721 elif self._copiesstorage == b'changeset-sidedata': |
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722 sidedata = {} |
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723 if p1copies is not None: |
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724 sidedata[sidedatamod.SD_P1COPIES] = p1copies |
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725 if p2copies is not None: |
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726 sidedata[sidedatamod.SD_P2COPIES] = p2copies |
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727 if filesadded is not None: |
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728 sidedata[sidedatamod.SD_FILESADDED] = filesadded |
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729 if filesremoved is not None: |
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730 sidedata[sidedatamod.SD_FILESREMOVED] = filesremoved |
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731 |
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[extendedchangelog] add extra metadata in the changelog entry
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732 if extra: |
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733 extra = encodeextra(extra) |
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734 parseddate = b"%s %s" % (parseddate, extra) |
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735 l = [hex(manifest), user, parseddate] + sortedfiles + [b"", desc] |
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736 text = b"\n".join(l) |
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737 return self.addrevision( |
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738 text, transaction, len(self), p1, p2, sidedata=sidedata |
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739 ) |
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740 |
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741 def branchinfo(self, rev): |
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742 """return the branch name and open/close state of a revision |
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743 |
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744 This function exists because creating a changectx object |
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745 just to access this is costly.""" |
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746 extra = self.read(rev)[5] |
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747 return encoding.tolocal(extra.get(b"branch")), b'close' in extra |
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748 |
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749 def _nodeduplicatecallback(self, transaction, node): |
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750 # keep track of revisions that got "re-added", eg: unbunde of know rev. |
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751 # |
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752 # We track them in a list to preserve their order from the source bundle |
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753 duplicates = transaction.changes.setdefault(b'revduplicates', []) |
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754 duplicates.append(self.rev(node)) |