annotate mercurial/changelog.py @ 17810:2894d180afa1

changelog: extract description cleaning logic in a dedicated function The amend logic have use for it.
author Pierre-Yves David <pierre-yves.david@ens-lyon.org>
date Thu, 18 Oct 2012 22:04:49 +0200
parents 5c89e7fa5bc2
children 6f79c32c0bdf
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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
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6 # GNU General Public License version 2 or any later version.
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7
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8 from node import bin, hex, nullid
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9 from i18n import _
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10 import util, error, revlog, encoding
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11
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12 _defaultextra = {'branch': 'default'}
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13
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14 def _string_escape(text):
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15 """
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16 >>> d = {'nl': chr(10), 'bs': chr(92), 'cr': chr(13), 'nul': chr(0)}
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17 >>> s = "ab%(nl)scd%(bs)s%(bs)sn%(nul)sab%(cr)scd%(bs)s%(nl)s" % d
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18 >>> s
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19 'ab\\ncd\\\\\\\\n\\x00ab\\rcd\\\\\\n'
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20 >>> res = _string_escape(s)
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21 >>> s == res.decode('string_escape')
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22 True
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23 """
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24 # subset of the string_escape codec
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25 text = text.replace('\\', '\\\\').replace('\n', '\\n').replace('\r', '\\r')
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26 return text.replace('\0', '\\0')
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27
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28 def decodeextra(text):
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29 """
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30 >>> decodeextra(encodeextra({'foo': 'bar', 'baz': chr(0) + '2'}))
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31 {'foo': 'bar', 'baz': '\\x002', 'branch': 'default'}
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32 >>> decodeextra(encodeextra({'foo': 'bar', 'baz': chr(92) + chr(0) + '2'}))
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33 {'foo': 'bar', 'baz': '\\\\\\x002', 'branch': 'default'}
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34 """
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35 extra = _defaultextra.copy()
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36 for l in text.split('\0'):
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37 if l:
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38 if '\\0' in l:
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39 # fix up \0 without getting into trouble with \\0
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40 l = l.replace('\\\\', '\\\\\n')
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41 l = l.replace('\\0', '\0')
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42 l = l.replace('\n', '')
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43 k, v = l.decode('string_escape').split(':', 1)
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44 extra[k] = v
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45 return extra
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46
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47 def encodeextra(d):
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48 # keys must be sorted to produce a deterministic changelog entry
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49 items = [_string_escape('%s:%s' % (k, d[k])) for k in sorted(d)]
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50 return "\0".join(items)
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51
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52 def stripdesc(desc):
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53 """strip trailing whitespace and leading and trailing empty lines"""
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54 return '\n'.join([l.rstrip() for l in desc.splitlines()]).strip('\n')
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55
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56 class appender(object):
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57 '''the changelog index must be updated last on disk, so we use this class
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58 to delay writes to it'''
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59 def __init__(self, fp, buf):
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60 self.data = buf
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61 self.fp = fp
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62 self.offset = fp.tell()
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63 self.size = util.fstat(fp).st_size
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64
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65 def end(self):
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66 return self.size + len("".join(self.data))
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67 def tell(self):
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68 return self.offset
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69 def flush(self):
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70 pass
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71 def close(self):
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72 self.fp.close()
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73
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74 def seek(self, offset, whence=0):
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75 '''virtual file offset spans real file and data'''
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76 if whence == 0:
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77 self.offset = offset
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78 elif whence == 1:
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79 self.offset += offset
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80 elif whence == 2:
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81 self.offset = self.end() + offset
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82 if self.offset < self.size:
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83 self.fp.seek(self.offset)
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84
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85 def read(self, count=-1):
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86 '''only trick here is reads that span real file and data'''
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87 ret = ""
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88 if self.offset < self.size:
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89 s = self.fp.read(count)
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90 ret = s
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91 self.offset += len(s)
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92 if count > 0:
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93 count -= len(s)
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94 if count != 0:
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95 doff = self.offset - self.size
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96 self.data.insert(0, "".join(self.data))
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97 del self.data[1:]
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98 s = self.data[0][doff:doff + count]
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99 self.offset += len(s)
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100 ret += s
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101 return ret
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102
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103 def write(self, s):
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104 self.data.append(str(s))
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105 self.offset += len(s)
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106
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107 def delayopener(opener, target, divert, buf):
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108 def o(name, mode='r'):
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109 if name != target:
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110 return opener(name, mode)
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111 if divert:
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112 return opener(name + ".a", mode.replace('a', 'w'))
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113 # otherwise, divert to memory
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114 return appender(opener(name, mode), buf)
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115 return o
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116
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117 class changelog(revlog.revlog):
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118 def __init__(self, opener):
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119 revlog.revlog.__init__(self, opener, "00changelog.i")
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120 if self._initempty:
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121 # changelogs don't benefit from generaldelta
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122 self.version &= ~revlog.REVLOGGENERALDELTA
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123 self._generaldelta = False
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124 self._realopener = opener
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125 self._delayed = False
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126 self._divert = False
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127 self.filteredrevs = ()
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128
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129 def tip(self):
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130 """filtered version of revlog.tip"""
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131 for i in xrange(len(self) -1, -2, -1):
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132 if i not in self.filteredrevs:
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133 return self.node(i)
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134
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135 def __iter__(self):
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136 """filtered version of revlog.__iter__"""
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137 for i in xrange(len(self)):
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138 if i not in self.filteredrevs:
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139 yield i
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140
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141 def revs(self, start=0, stop=None):
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142 """filtered version of revlog.revs"""
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143 for i in super(changelog, self).revs(start, stop):
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144 if i not in self.filteredrevs:
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diff changeset
145 yield i
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146
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147 @util.propertycache
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148 def nodemap(self):
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149 # XXX need filtering too
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150 self.rev(self.node(0))
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151 return self._nodecache
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152
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153 def hasnode(self, node):
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154 """filtered version of revlog.hasnode"""
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155 try:
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156 i = self.rev(node)
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157 return i not in self.filteredrevs
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158 except KeyError:
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159 return False
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160
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161 def headrevs(self):
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162 if self.filteredrevs:
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163 # XXX we should fix and use the C version
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164 return self._headrevs()
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165 return super(changelog, self).headrevs()
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166
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167 def strip(self, *args, **kwargs):
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168 # XXX make something better than assert
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169 # We can't expect proper strip behavior if we are filtered.
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170 assert not self.filteredrevs
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171 super(changelog, self).strip(*args, **kwargs)
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172
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173 def rev(self, node):
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174 """filtered version of revlog.rev"""
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175 r = super(changelog, self).rev(node)
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176 if r in self.filteredrevs:
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177 raise error.LookupError(node, self.indexfile, _('no node'))
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178 return r
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179
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180 def node(self, rev):
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181 """filtered version of revlog.node"""
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182 if rev in self.filteredrevs:
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183 raise IndexError(rev)
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184 return super(changelog, self).node(rev)
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185
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186 def linkrev(self, rev):
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187 """filtered version of revlog.linkrev"""
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188 if rev in self.filteredrevs:
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189 raise IndexError(rev)
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190 return super(changelog, self).linkrev(rev)
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191
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192 def parentrevs(self, rev):
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193 """filtered version of revlog.parentrevs"""
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194 if rev in self.filteredrevs:
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195 raise IndexError(rev)
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196 return super(changelog, self).parentrevs(rev)
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197
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198 def flags(self, rev):
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199 """filtered version of revlog.flags"""
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200 if rev in self.filteredrevs:
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201 raise IndexError(rev)
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202 return super(changelog, self).flags(rev)
0
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203
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204 def delayupdate(self):
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205 "delay visibility of index updates to other readers"
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206 self._delayed = True
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207 self._divert = (len(self) == 0)
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208 self._delaybuf = []
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209 self.opener = delayopener(self._realopener, self.indexfile,
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210 self._divert, self._delaybuf)
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211
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212 def finalize(self, tr):
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213 "finalize index updates"
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214 self._delayed = False
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215 self.opener = self._realopener
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216 # move redirected index data back into place
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217 if self._divert:
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diff changeset
218 nfile = self.opener(self.indexfile + ".a")
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219 n = nfile.name
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220 nfile.close()
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221 util.rename(n, n[:-2])
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222 elif self._delaybuf:
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223 fp = self.opener(self.indexfile, 'a')
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224 fp.write("".join(self._delaybuf))
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225 fp.close()
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226 self._delaybuf = []
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227 # split when we're done
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228 self.checkinlinesize(tr)
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229
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230 def readpending(self, file):
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231 r = revlog.revlog(self.opener, file)
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232 self.index = r.index
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233 self.nodemap = r.nodemap
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234 self._nodecache = r._nodecache
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235 self._chunkcache = r._chunkcache
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236
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237 def writepending(self):
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238 "create a file containing the unfinalized state for pretxnchangegroup"
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239 if self._delaybuf:
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240 # make a temporary copy of the index
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241 fp1 = self._realopener(self.indexfile)
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242 fp2 = self._realopener(self.indexfile + ".a", "w")
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243 fp2.write(fp1.read())
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244 # add pending data
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245 fp2.write("".join(self._delaybuf))
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246 fp2.close()
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247 # switch modes so finalize can simply rename
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248 self._delaybuf = []
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249 self._divert = True
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250
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251 if self._divert:
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252 return True
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253
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254 return False
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255
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256 def checkinlinesize(self, tr, fp=None):
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diff changeset
257 if not self._delayed:
07f9b2f4a9aa changelog: swap opener to switch delay modes
Matt Mackall <mpm@selenic.com>
parents: 9164
diff changeset
258 revlog.revlog.checkinlinesize(self, tr, fp)
4261
cd7b36b7869c restructure changelog file appending
Matt Mackall <mpm@selenic.com>
parents: 4258
diff changeset
259
5744
9db7fd77417d changelog: remove extract function
Matt Mackall <mpm@selenic.com>
parents: 5450
diff changeset
260 def read(self, node):
3077
ad6aecaf4eed document changelog format
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 2859
diff changeset
261 """
ad6aecaf4eed document changelog format
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 2859
diff changeset
262 format used:
3233
2f35961854fb [extendedchangelog] add extra metadata in the changelog entry
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3232
diff changeset
263 nodeid\n : manifest node in ascii
2f35961854fb [extendedchangelog] add extra metadata in the changelog entry
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3232
diff changeset
264 user\n : user, no \n or \r allowed
2f35961854fb [extendedchangelog] add extra metadata in the changelog entry
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3232
diff changeset
265 time tz extra\n : date (time is int or float, timezone is int)
17424
e7cfe3587ea4 fix trivial spelling errors
Mads Kiilerich <mads@kiilerich.com>
parents: 17207
diff changeset
266 : extra is metadata, encoded and separated by '\0'
3233
2f35961854fb [extendedchangelog] add extra metadata in the changelog entry
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3232
diff changeset
267 : older versions ignore it
2f35961854fb [extendedchangelog] add extra metadata in the changelog entry
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3232
diff changeset
268 files\n\n : files modified by the cset, no \n or \r allowed
2f35961854fb [extendedchangelog] add extra metadata in the changelog entry
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3232
diff changeset
269 (.*) : comment (free text, ideally utf-8)
2f35961854fb [extendedchangelog] add extra metadata in the changelog entry
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3232
diff changeset
270
2f35961854fb [extendedchangelog] add extra metadata in the changelog entry
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3232
diff changeset
271 changelog v0 doesn't use extra
3077
ad6aecaf4eed document changelog format
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 2859
diff changeset
272 """
5744
9db7fd77417d changelog: remove extract function
Matt Mackall <mpm@selenic.com>
parents: 5450
diff changeset
273 text = self.revision(node)
37
a8811676c85a Move hex/bin bits to revlog
mpm@selenic.com
parents: 33
diff changeset
274 if not text:
16267
aa6821a7b52f changelog: micro-optimizations to changelog.read()
Matt Mackall <mpm@selenic.com>
parents: 15661
diff changeset
275 return (nullid, "", (0, 0), [], "", _defaultextra)
0
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
276 last = text.index("\n\n")
7948
de377b1a9a84 move encoding bits from util to encoding
Matt Mackall <mpm@selenic.com>
parents: 7807
diff changeset
277 desc = encoding.tolocal(text[last + 2:])
3233
2f35961854fb [extendedchangelog] add extra metadata in the changelog entry
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3232
diff changeset
278 l = text[:last].split('\n')
0
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
279 manifest = bin(l[0])
7948
de377b1a9a84 move encoding bits from util to encoding
Matt Mackall <mpm@selenic.com>
parents: 7807
diff changeset
280 user = encoding.tolocal(l[1])
3233
2f35961854fb [extendedchangelog] add extra metadata in the changelog entry
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3232
diff changeset
281
16267
aa6821a7b52f changelog: micro-optimizations to changelog.read()
Matt Mackall <mpm@selenic.com>
parents: 15661
diff changeset
282 tdata = l[2].split(' ', 2)
aa6821a7b52f changelog: micro-optimizations to changelog.read()
Matt Mackall <mpm@selenic.com>
parents: 15661
diff changeset
283 if len(tdata) != 3:
aa6821a7b52f changelog: micro-optimizations to changelog.read()
Matt Mackall <mpm@selenic.com>
parents: 15661
diff changeset
284 time = float(tdata[0])
3233
2f35961854fb [extendedchangelog] add extra metadata in the changelog entry
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3232
diff changeset
285 try:
2f35961854fb [extendedchangelog] add extra metadata in the changelog entry
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3232
diff changeset
286 # various tools did silly things with the time zone field.
16267
aa6821a7b52f changelog: micro-optimizations to changelog.read()
Matt Mackall <mpm@selenic.com>
parents: 15661
diff changeset
287 timezone = int(tdata[1])
14004
97ed99d1f419 eliminate various naked except clauses
Idan Kamara <idankk86@gmail.com>
parents: 10420
diff changeset
288 except ValueError:
3233
2f35961854fb [extendedchangelog] add extra metadata in the changelog entry
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3232
diff changeset
289 timezone = 0
16267
aa6821a7b52f changelog: micro-optimizations to changelog.read()
Matt Mackall <mpm@selenic.com>
parents: 15661
diff changeset
290 extra = _defaultextra
3233
2f35961854fb [extendedchangelog] add extra metadata in the changelog entry
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3232
diff changeset
291 else:
16267
aa6821a7b52f changelog: micro-optimizations to changelog.read()
Matt Mackall <mpm@selenic.com>
parents: 15661
diff changeset
292 time, timezone = float(tdata[0]), int(tdata[1])
aa6821a7b52f changelog: micro-optimizations to changelog.read()
Matt Mackall <mpm@selenic.com>
parents: 15661
diff changeset
293 extra = decodeextra(tdata[2])
aa6821a7b52f changelog: micro-optimizations to changelog.read()
Matt Mackall <mpm@selenic.com>
parents: 15661
diff changeset
294
0
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
295 files = l[3:]
3233
2f35961854fb [extendedchangelog] add extra metadata in the changelog entry
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3232
diff changeset
296 return (manifest, user, (time, timezone), files, desc, extra)
0
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
297
8422
437e06bbd11e changelog: removed bad default arguments in add method
Martin Geisler <mg@lazybytes.net>
parents: 8225
diff changeset
298 def add(self, manifest, files, desc, transaction, p1, p2,
9677
0c072e63e3e7 changelog: do not use a mutable default value
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 9166
diff changeset
299 user, date=None, extra=None):
14379
bd23d5f28bbb changelog: convert user and desc from local encoding early
Martin Geisler <mg@aragost.com>
parents: 10420
diff changeset
300 # 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
301 # 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
302 # 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
303 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
304
7035
9d023ef7b467 forbid username with '\n' at the changelog level
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6259
diff changeset
305 user = user.strip()
8424
c5b3d3e30de7 changelog: refuse to add revisions with empty usernames
Martin Geisler <mg@lazybytes.net>
parents: 7807
diff changeset
306 # 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
307 # 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
308 # 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
309 if not user:
c5b3d3e30de7 changelog: refuse to add revisions with empty usernames
Martin Geisler <mg@lazybytes.net>
parents: 7807
diff changeset
310 raise error.RevlogError(_("empty username"))
7035
9d023ef7b467 forbid username with '\n' at the changelog level
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6259
diff changeset
311 if "\n" in user:
7633
08cabecfa8a8 errors: move revlog errors
Matt Mackall <mpm@selenic.com>
parents: 7470
diff changeset
312 raise error.RevlogError(_("username %s contains a newline")
08cabecfa8a8 errors: move revlog errors
Matt Mackall <mpm@selenic.com>
parents: 7470
diff changeset
313 % repr(user))
8499
fb9b83df45f3 commit: move description trimming into changelog
Matt Mackall <mpm@selenic.com>
parents: 8443
diff changeset
314
17810
2894d180afa1 changelog: extract description cleaning logic in a dedicated function
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 17677
diff changeset
315 desc = stripdesc(desc)
8499
fb9b83df45f3 commit: move description trimming into changelog
Matt Mackall <mpm@selenic.com>
parents: 8443
diff changeset
316
1195
f92af8d53330 Validate user input of dates when adding a changelog entry.
Bryan O'Sullivan <bos@serpentine.com>
parents: 1095
diff changeset
317 if date:
2523
4ab59a3acd16 validate the resulting date in parsedate
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 2522
diff changeset
318 parseddate = "%d %d" % util.parsedate(date)
1195
f92af8d53330 Validate user input of dates when adding a changelog entry.
Bryan O'Sullivan <bos@serpentine.com>
parents: 1095
diff changeset
319 else:
2522
85f796baab10 Allow the use of human readable dates (issue 251)
Jose M. Prieto <jmprieto@gmx.net>
parents: 2142
diff changeset
320 parseddate = "%d %d" % util.makedate()
10417
58e040c51231 branch: avoid using reserved tag names
Wagner Bruna <wbruna@softwareexpress.com.br>
parents: 10263
diff changeset
321 if extra:
58e040c51231 branch: avoid using reserved tag names
Wagner Bruna <wbruna@softwareexpress.com.br>
parents: 10263
diff changeset
322 branch = extra.get("branch")
58e040c51231 branch: avoid using reserved tag names
Wagner Bruna <wbruna@softwareexpress.com.br>
parents: 10263
diff changeset
323 if branch in ("default", ""):
58e040c51231 branch: avoid using reserved tag names
Wagner Bruna <wbruna@softwareexpress.com.br>
parents: 10263
diff changeset
324 del extra["branch"]
58e040c51231 branch: avoid using reserved tag names
Wagner Bruna <wbruna@softwareexpress.com.br>
parents: 10263
diff changeset
325 elif branch in (".", "null", "tip"):
58e040c51231 branch: avoid using reserved tag names
Wagner Bruna <wbruna@softwareexpress.com.br>
parents: 10263
diff changeset
326 raise error.RevlogError(_('the name \'%s\' is reserved')
58e040c51231 branch: avoid using reserved tag names
Wagner Bruna <wbruna@softwareexpress.com.br>
parents: 10263
diff changeset
327 % branch)
3233
2f35961854fb [extendedchangelog] add extra metadata in the changelog entry
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3232
diff changeset
328 if extra:
8443
53ff4a5af284 changelog: turn {de,en}code_extra methods into functions
Martin Geisler <mg@lazybytes.net>
parents: 8442
diff changeset
329 extra = encodeextra(extra)
3233
2f35961854fb [extendedchangelog] add extra metadata in the changelog entry
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3232
diff changeset
330 parseddate = "%s %s" % (parseddate, extra)
8209
a1a5a57efe90 replace util.sort with sorted built-in
Matt Mackall <mpm@selenic.com>
parents: 7948
diff changeset
331 l = [hex(manifest), user, parseddate] + sorted(files) + ["", desc]
0
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
332 text = "\n".join(l)
6750
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6259
diff changeset
333 return self.addrevision(text, transaction, len(self), p1, p2)