annotate mercurial/changelog.py @ 23205:2d54aa5397cd

changelog: rely on transaction for finalization Instead of calling 'cl.finalize()' by hand (possibly at a bogus time) we register it in the transaction during 'delayupdate' and rely on 'tr.close()' to call it at the right time.
author Pierre-Yves David <pierre-yves.david@fb.com>
date Sat, 18 Oct 2014 01:09:41 -0700
parents 3872d563e01a
children b01c491af0cf
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 import weakref
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9 from node import bin, hex, nullid
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10 from i18n import _
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11 import util, error, revlog, encoding
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12
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13 _defaultextra = {'branch': 'default'}
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14
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15 def _string_escape(text):
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16 """
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17 >>> d = {'nl': chr(10), 'bs': chr(92), 'cr': chr(13), 'nul': chr(0)}
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18 >>> s = "ab%(nl)scd%(bs)s%(bs)sn%(nul)sab%(cr)scd%(bs)s%(nl)s" % d
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19 >>> s
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20 'ab\\ncd\\\\\\\\n\\x00ab\\rcd\\\\\\n'
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21 >>> res = _string_escape(s)
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22 >>> s == res.decode('string_escape')
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23 True
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24 """
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25 # subset of the string_escape codec
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26 text = text.replace('\\', '\\\\').replace('\n', '\\n').replace('\r', '\\r')
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27 return text.replace('\0', '\\0')
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28
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29 def decodeextra(text):
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30 """
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31 >>> sorted(decodeextra(encodeextra({'foo': 'bar', 'baz': chr(0) + '2'})
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32 ... ).iteritems())
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33 [('baz', '\\x002'), ('branch', 'default'), ('foo', 'bar')]
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34 >>> sorted(decodeextra(encodeextra({'foo': 'bar',
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35 ... 'baz': chr(92) + chr(0) + '2'})
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36 ... ).iteritems())
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37 [('baz', '\\\\\\x002'), ('branch', 'default'), ('foo', 'bar')]
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38 """
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39 extra = _defaultextra.copy()
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40 for l in text.split('\0'):
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41 if l:
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42 if '\\0' in l:
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43 # fix up \0 without getting into trouble with \\0
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44 l = l.replace('\\\\', '\\\\\n')
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45 l = l.replace('\\0', '\0')
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46 l = l.replace('\n', '')
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47 k, v = l.decode('string_escape').split(':', 1)
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48 extra[k] = v
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49 return extra
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50
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51 def encodeextra(d):
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52 # keys must be sorted to produce a deterministic changelog entry
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53 items = [_string_escape('%s:%s' % (k, d[k])) for k in sorted(d)]
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54 return "\0".join(items)
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55
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56 def stripdesc(desc):
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57 """strip trailing whitespace and leading and trailing empty lines"""
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58 return '\n'.join([l.rstrip() for l in desc.splitlines()]).strip('\n')
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59
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60 class appender(object):
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61 '''the changelog index must be updated last on disk, so we use this class
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62 to delay writes to it'''
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63 def __init__(self, vfs, name, mode, buf):
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64 self.data = buf
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65 fp = vfs(name, mode)
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66 self.fp = fp
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67 self.offset = fp.tell()
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68 self.size = vfs.fstat(fp).st_size
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69
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70 def end(self):
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71 return self.size + len("".join(self.data))
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72 def tell(self):
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73 return self.offset
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74 def flush(self):
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75 pass
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76 def close(self):
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77 self.fp.close()
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78
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79 def seek(self, offset, whence=0):
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80 '''virtual file offset spans real file and data'''
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81 if whence == 0:
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82 self.offset = offset
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83 elif whence == 1:
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84 self.offset += offset
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85 elif whence == 2:
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86 self.offset = self.end() + offset
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87 if self.offset < self.size:
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88 self.fp.seek(self.offset)
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89
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90 def read(self, count=-1):
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91 '''only trick here is reads that span real file and data'''
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92 ret = ""
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93 if self.offset < self.size:
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94 s = self.fp.read(count)
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95 ret = s
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96 self.offset += len(s)
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97 if count > 0:
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98 count -= len(s)
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99 if count != 0:
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100 doff = self.offset - self.size
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101 self.data.insert(0, "".join(self.data))
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102 del self.data[1:]
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103 s = self.data[0][doff:doff + count]
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104 self.offset += len(s)
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105 ret += s
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106 return ret
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107
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108 def write(self, s):
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109 self.data.append(str(s))
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110 self.offset += len(s)
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111
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112 def _divertopener(opener, target):
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113 """build an opener that writes in 'target.a' instead of 'target'"""
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114 def _divert(name, mode='r'):
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115 if name != target:
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116 return opener(name, mode)
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117 return opener(name + ".a", mode)
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118 return _divert
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119
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120 def _delayopener(opener, target, buf):
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121 """build an opener that stores chunks in 'buf' instead of 'target'"""
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122 def _delay(name, mode='r'):
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123 if name != target:
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124 return opener(name, mode)
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125 return appender(opener, name, mode, buf)
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126 return _delay
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127
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128 class changelog(revlog.revlog):
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129 def __init__(self, opener):
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130 revlog.revlog.__init__(self, opener, "00changelog.i")
14334
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parents: 14207
diff changeset
131 if self._initempty:
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parents: 14207
diff changeset
132 # changelogs don't benefit from generaldelta
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parents: 14207
diff changeset
133 self.version &= ~revlog.REVLOGGENERALDELTA
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parents: 14207
diff changeset
134 self._generaldelta = False
8644
c2ef478b2efa changelog: make delayopener less intrusive
Matt Mackall <mpm@selenic.com>
parents: 8499
diff changeset
135 self._realopener = opener
c2ef478b2efa changelog: make delayopener less intrusive
Matt Mackall <mpm@selenic.com>
parents: 8499
diff changeset
136 self._delayed = False
23201
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parents: 23088
diff changeset
137 self._delaybuf = None
9163
f193b643d1b1 changelog: _delaycount -> _divert
Matt Mackall <mpm@selenic.com>
parents: 8778
diff changeset
138 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
139 self.filteredrevs = frozenset()
17677
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parents: 17424
diff changeset
140
5c89e7fa5bc2 clfilter: introduce `filteredrevs` attribute on changelog
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parents: 17424
diff changeset
141 def tip(self):
5c89e7fa5bc2 clfilter: introduce `filteredrevs` attribute on changelog
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parents: 17424
diff changeset
142 """filtered version of revlog.tip"""
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Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17424
diff changeset
143 for i in xrange(len(self) -1, -2, -1):
5c89e7fa5bc2 clfilter: introduce `filteredrevs` attribute on changelog
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parents: 17424
diff changeset
144 if i not in self.filteredrevs:
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parents: 17424
diff changeset
145 return self.node(i)
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parents: 17424
diff changeset
146
5c89e7fa5bc2 clfilter: introduce `filteredrevs` attribute on changelog
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parents: 17424
diff changeset
147 def __iter__(self):
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parents: 17424
diff changeset
148 """filtered version of revlog.__iter__"""
17951
6f79c32c0bdf commit: increase perf by avoiding unnecessary filteredrevs check
Durham Goode <durham@fb.com>
parents: 17810
diff changeset
149 if len(self.filteredrevs) == 0:
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parents: 17810
diff changeset
150 return revlog.revlog.__iter__(self)
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parents: 17810
diff changeset
151
6f79c32c0bdf commit: increase perf by avoiding unnecessary filteredrevs check
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parents: 17810
diff changeset
152 def filterediter():
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parents: 17810
diff changeset
153 for i in xrange(len(self)):
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parents: 17810
diff changeset
154 if i not in self.filteredrevs:
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Durham Goode <durham@fb.com>
parents: 17810
diff changeset
155 yield i
6f79c32c0bdf commit: increase perf by avoiding unnecessary filteredrevs check
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parents: 17810
diff changeset
156
6f79c32c0bdf commit: increase perf by avoiding unnecessary filteredrevs check
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parents: 17810
diff changeset
157 return filterediter()
17677
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parents: 17424
diff changeset
158
5c89e7fa5bc2 clfilter: introduce `filteredrevs` attribute on changelog
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parents: 17424
diff changeset
159 def revs(self, start=0, stop=None):
5c89e7fa5bc2 clfilter: introduce `filteredrevs` attribute on changelog
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parents: 17424
diff changeset
160 """filtered version of revlog.revs"""
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Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17424
diff changeset
161 for i in super(changelog, self).revs(start, stop):
5c89e7fa5bc2 clfilter: introduce `filteredrevs` attribute on changelog
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parents: 17424
diff changeset
162 if i not in self.filteredrevs:
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parents: 17424
diff changeset
163 yield i
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parents: 17424
diff changeset
164
5c89e7fa5bc2 clfilter: introduce `filteredrevs` attribute on changelog
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parents: 17424
diff changeset
165 @util.propertycache
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parents: 17424
diff changeset
166 def nodemap(self):
5c89e7fa5bc2 clfilter: introduce `filteredrevs` attribute on changelog
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parents: 17424
diff changeset
167 # XXX need filtering too
5c89e7fa5bc2 clfilter: introduce `filteredrevs` attribute on changelog
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parents: 17424
diff changeset
168 self.rev(self.node(0))
5c89e7fa5bc2 clfilter: introduce `filteredrevs` attribute on changelog
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parents: 17424
diff changeset
169 return self._nodecache
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parents: 17424
diff changeset
170
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parents: 17424
diff changeset
171 def hasnode(self, node):
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parents: 17424
diff changeset
172 """filtered version of revlog.hasnode"""
5c89e7fa5bc2 clfilter: introduce `filteredrevs` attribute on changelog
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parents: 17424
diff changeset
173 try:
5c89e7fa5bc2 clfilter: introduce `filteredrevs` attribute on changelog
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parents: 17424
diff changeset
174 i = self.rev(node)
5c89e7fa5bc2 clfilter: introduce `filteredrevs` attribute on changelog
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parents: 17424
diff changeset
175 return i not in self.filteredrevs
5c89e7fa5bc2 clfilter: introduce `filteredrevs` attribute on changelog
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17424
diff changeset
176 except KeyError:
5c89e7fa5bc2 clfilter: introduce `filteredrevs` attribute on changelog
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parents: 17424
diff changeset
177 return False
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parents: 17424
diff changeset
178
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Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17424
diff changeset
179 def headrevs(self):
5c89e7fa5bc2 clfilter: introduce `filteredrevs` attribute on changelog
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parents: 17424
diff changeset
180 if self.filteredrevs:
22484
2b5940f64750 obsolete: use C code for headrevs calculation
Durham Goode <durham@fb.com>
parents: 21544
diff changeset
181 try:
23088
fe5f044b753d changelog: use headrevsfiltered
Mads Kiilerich <madski@unity3d.com>
parents: 23015
diff changeset
182 return self.index.headrevsfiltered(self.filteredrevs)
fe5f044b753d changelog: use headrevsfiltered
Mads Kiilerich <madski@unity3d.com>
parents: 23015
diff changeset
183 # AttributeError covers non-c-extension environments and
fe5f044b753d changelog: use headrevsfiltered
Mads Kiilerich <madski@unity3d.com>
parents: 23015
diff changeset
184 # old c extensions without filter handling.
fe5f044b753d changelog: use headrevsfiltered
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parents: 23015
diff changeset
185 except AttributeError:
22484
2b5940f64750 obsolete: use C code for headrevs calculation
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parents: 21544
diff changeset
186 return self._headrevs()
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parents: 21544
diff changeset
187
17677
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diff changeset
188 return super(changelog, self).headrevs()
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parents: 17424
diff changeset
189
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parents: 17424
diff changeset
190 def strip(self, *args, **kwargs):
5c89e7fa5bc2 clfilter: introduce `filteredrevs` attribute on changelog
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17424
diff changeset
191 # XXX make something better than assert
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parents: 17424
diff changeset
192 # We can't expect proper strip behavior if we are filtered.
5c89e7fa5bc2 clfilter: introduce `filteredrevs` attribute on changelog
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parents: 17424
diff changeset
193 assert not self.filteredrevs
5c89e7fa5bc2 clfilter: introduce `filteredrevs` attribute on changelog
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parents: 17424
diff changeset
194 super(changelog, self).strip(*args, **kwargs)
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parents: 17424
diff changeset
195
5c89e7fa5bc2 clfilter: introduce `filteredrevs` attribute on changelog
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parents: 17424
diff changeset
196 def rev(self, node):
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parents: 17424
diff changeset
197 """filtered version of revlog.rev"""
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parents: 17424
diff changeset
198 r = super(changelog, self).rev(node)
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parents: 17424
diff changeset
199 if r in self.filteredrevs:
23015
21c44c1aed87 repoview: add a FilteredLookupError class
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23014
diff changeset
200 raise error.FilteredLookupError(hex(node), self.indexfile,
21c44c1aed87 repoview: add a FilteredLookupError class
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23014
diff changeset
201 _('filtered node'))
17677
5c89e7fa5bc2 clfilter: introduce `filteredrevs` attribute on changelog
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parents: 17424
diff changeset
202 return r
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parents: 17424
diff changeset
203
5c89e7fa5bc2 clfilter: introduce `filteredrevs` attribute on changelog
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parents: 17424
diff changeset
204 def node(self, rev):
5c89e7fa5bc2 clfilter: introduce `filteredrevs` attribute on changelog
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parents: 17424
diff changeset
205 """filtered version of revlog.node"""
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parents: 17424
diff changeset
206 if rev in self.filteredrevs:
23014
f00813325c5a repoview: add a FilteredIndexError class
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 22484
diff changeset
207 raise error.FilteredIndexError(rev)
17677
5c89e7fa5bc2 clfilter: introduce `filteredrevs` attribute on changelog
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parents: 17424
diff changeset
208 return super(changelog, self).node(rev)
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parents: 17424
diff changeset
209
5c89e7fa5bc2 clfilter: introduce `filteredrevs` attribute on changelog
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parents: 17424
diff changeset
210 def linkrev(self, rev):
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parents: 17424
diff changeset
211 """filtered version of revlog.linkrev"""
5c89e7fa5bc2 clfilter: introduce `filteredrevs` attribute on changelog
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parents: 17424
diff changeset
212 if rev in self.filteredrevs:
23014
f00813325c5a repoview: add a FilteredIndexError class
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 22484
diff changeset
213 raise error.FilteredIndexError(rev)
17677
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parents: 17424
diff changeset
214 return super(changelog, self).linkrev(rev)
5c89e7fa5bc2 clfilter: introduce `filteredrevs` attribute on changelog
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parents: 17424
diff changeset
215
5c89e7fa5bc2 clfilter: introduce `filteredrevs` attribute on changelog
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parents: 17424
diff changeset
216 def parentrevs(self, rev):
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parents: 17424
diff changeset
217 """filtered version of revlog.parentrevs"""
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parents: 17424
diff changeset
218 if rev in self.filteredrevs:
23014
f00813325c5a repoview: add a FilteredIndexError class
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 22484
diff changeset
219 raise error.FilteredIndexError(rev)
17677
5c89e7fa5bc2 clfilter: introduce `filteredrevs` attribute on changelog
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parents: 17424
diff changeset
220 return super(changelog, self).parentrevs(rev)
5c89e7fa5bc2 clfilter: introduce `filteredrevs` attribute on changelog
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parents: 17424
diff changeset
221
5c89e7fa5bc2 clfilter: introduce `filteredrevs` attribute on changelog
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17424
diff changeset
222 def flags(self, rev):
5c89e7fa5bc2 clfilter: introduce `filteredrevs` attribute on changelog
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17424
diff changeset
223 """filtered version of revlog.flags"""
5c89e7fa5bc2 clfilter: introduce `filteredrevs` attribute on changelog
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17424
diff changeset
224 if rev in self.filteredrevs:
23014
f00813325c5a repoview: add a FilteredIndexError class
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 22484
diff changeset
225 raise error.FilteredIndexError(rev)
17677
5c89e7fa5bc2 clfilter: introduce `filteredrevs` attribute on changelog
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parents: 17424
diff changeset
226 return super(changelog, self).flags(rev)
0
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
227
23203
3872d563e01a changelog: handle writepending in the transaction
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23201
diff changeset
228 def delayupdate(self, tr):
4261
cd7b36b7869c restructure changelog file appending
Matt Mackall <mpm@selenic.com>
parents: 4258
diff changeset
229 "delay visibility of index updates to other readers"
23201
7e97bf6ee2d6 changelog: rework the delayupdate mechanism
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23088
diff changeset
230
7e97bf6ee2d6 changelog: rework the delayupdate mechanism
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parents: 23088
diff changeset
231 if not self._delayed:
7e97bf6ee2d6 changelog: rework the delayupdate mechanism
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23088
diff changeset
232 if len(self) == 0:
7e97bf6ee2d6 changelog: rework the delayupdate mechanism
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23088
diff changeset
233 self._divert = True
7e97bf6ee2d6 changelog: rework the delayupdate mechanism
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23088
diff changeset
234 if self._realopener.exists(self.indexfile + '.a'):
7e97bf6ee2d6 changelog: rework the delayupdate mechanism
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23088
diff changeset
235 self._realopener.unlink(self.indexfile + '.a')
7e97bf6ee2d6 changelog: rework the delayupdate mechanism
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23088
diff changeset
236 self.opener = _divertopener(self._realopener, self.indexfile)
7e97bf6ee2d6 changelog: rework the delayupdate mechanism
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23088
diff changeset
237 else:
7e97bf6ee2d6 changelog: rework the delayupdate mechanism
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23088
diff changeset
238 self._delaybuf = []
7e97bf6ee2d6 changelog: rework the delayupdate mechanism
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23088
diff changeset
239 self.opener = _delayopener(self._realopener, self.indexfile,
7e97bf6ee2d6 changelog: rework the delayupdate mechanism
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23088
diff changeset
240 self._delaybuf)
8644
c2ef478b2efa changelog: make delayopener less intrusive
Matt Mackall <mpm@selenic.com>
parents: 8499
diff changeset
241 self._delayed = True
23203
3872d563e01a changelog: handle writepending in the transaction
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23201
diff changeset
242 tr.addpending('cl-%i' % id(self), self._writepending)
23205
2d54aa5397cd changelog: rely on transaction for finalization
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23203
diff changeset
243 trp = weakref.proxy(tr)
2d54aa5397cd changelog: rely on transaction for finalization
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23203
diff changeset
244 tr.addfinalize('cl-%i' % id(self), lambda: self._finalize(trp))
4261
cd7b36b7869c restructure changelog file appending
Matt Mackall <mpm@selenic.com>
parents: 4258
diff changeset
245
23205
2d54aa5397cd changelog: rely on transaction for finalization
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23203
diff changeset
246 def _finalize(self, tr):
4261
cd7b36b7869c restructure changelog file appending
Matt Mackall <mpm@selenic.com>
parents: 4258
diff changeset
247 "finalize index updates"
8644
c2ef478b2efa changelog: make delayopener less intrusive
Matt Mackall <mpm@selenic.com>
parents: 8499
diff changeset
248 self._delayed = False
9165
07f9b2f4a9aa changelog: swap opener to switch delay modes
Matt Mackall <mpm@selenic.com>
parents: 9164
diff changeset
249 self.opener = self._realopener
4269
73c918c71300 changelog: optimize delayed updates for clone vs pull
Matt Mackall <mpm@selenic.com>
parents: 4261
diff changeset
250 # move redirected index data back into place
9164
b0d995b6b0a6 changelog: factor out _delayname
Matt Mackall <mpm@selenic.com>
parents: 9163
diff changeset
251 if self._divert:
23201
7e97bf6ee2d6 changelog: rework the delayupdate mechanism
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23088
diff changeset
252 assert not self._delaybuf
19898
3f92e749d381 changelog: use "vfs.rename()" instead of "util.rename()"
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 18587
diff changeset
253 tmpname = self.indexfile + ".a"
3f92e749d381 changelog: use "vfs.rename()" instead of "util.rename()"
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 18587
diff changeset
254 nfile = self.opener.open(tmpname)
14207
c1cca38818b9 changelog: fixes leaked file handle
Zachary Gramana <zgramana@pottsconsultinggroup.com>
parents: 14004
diff changeset
255 nfile.close()
19898
3f92e749d381 changelog: use "vfs.rename()" instead of "util.rename()"
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 18587
diff changeset
256 self.opener.rename(tmpname, self.indexfile)
4269
73c918c71300 changelog: optimize delayed updates for clone vs pull
Matt Mackall <mpm@selenic.com>
parents: 4261
diff changeset
257 elif self._delaybuf:
4261
cd7b36b7869c restructure changelog file appending
Matt Mackall <mpm@selenic.com>
parents: 4258
diff changeset
258 fp = self.opener(self.indexfile, 'a')
cd7b36b7869c restructure changelog file appending
Matt Mackall <mpm@selenic.com>
parents: 4258
diff changeset
259 fp.write("".join(self._delaybuf))
cd7b36b7869c restructure changelog file appending
Matt Mackall <mpm@selenic.com>
parents: 4258
diff changeset
260 fp.close()
23201
7e97bf6ee2d6 changelog: rework the delayupdate mechanism
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23088
diff changeset
261 self._delaybuf = None
7e97bf6ee2d6 changelog: rework the delayupdate mechanism
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23088
diff changeset
262 self._divert = False
4269
73c918c71300 changelog: optimize delayed updates for clone vs pull
Matt Mackall <mpm@selenic.com>
parents: 4261
diff changeset
263 # split when we're done
4261
cd7b36b7869c restructure changelog file appending
Matt Mackall <mpm@selenic.com>
parents: 4258
diff changeset
264 self.checkinlinesize(tr)
cd7b36b7869c restructure changelog file appending
Matt Mackall <mpm@selenic.com>
parents: 4258
diff changeset
265
7787
b8d750daadde Introduce HG_PREPEND to solve pretxn races
Matt Mackall <mpm@selenic.com>
parents: 7634
diff changeset
266 def readpending(self, file):
b8d750daadde Introduce HG_PREPEND to solve pretxn races
Matt Mackall <mpm@selenic.com>
parents: 7634
diff changeset
267 r = revlog.revlog(self.opener, file)
b8d750daadde Introduce HG_PREPEND to solve pretxn races
Matt Mackall <mpm@selenic.com>
parents: 7634
diff changeset
268 self.index = r.index
b8d750daadde Introduce HG_PREPEND to solve pretxn races
Matt Mackall <mpm@selenic.com>
parents: 7634
diff changeset
269 self.nodemap = r.nodemap
16619
bc84a1aeaf5a changelog: ensure that nodecache is valid (issue3428)
Bryan O'Sullivan <bryano@fb.com>
parents: 16267
diff changeset
270 self._nodecache = r._nodecache
7787
b8d750daadde Introduce HG_PREPEND to solve pretxn races
Matt Mackall <mpm@selenic.com>
parents: 7634
diff changeset
271 self._chunkcache = r._chunkcache
b8d750daadde Introduce HG_PREPEND to solve pretxn races
Matt Mackall <mpm@selenic.com>
parents: 7634
diff changeset
272
23203
3872d563e01a changelog: handle writepending in the transaction
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23201
diff changeset
273 def _writepending(self):
7787
b8d750daadde Introduce HG_PREPEND to solve pretxn races
Matt Mackall <mpm@selenic.com>
parents: 7634
diff changeset
274 "create a file containing the unfinalized state for pretxnchangegroup"
b8d750daadde Introduce HG_PREPEND to solve pretxn races
Matt Mackall <mpm@selenic.com>
parents: 7634
diff changeset
275 if self._delaybuf:
b8d750daadde Introduce HG_PREPEND to solve pretxn races
Matt Mackall <mpm@selenic.com>
parents: 7634
diff changeset
276 # make a temporary copy of the index
b8d750daadde Introduce HG_PREPEND to solve pretxn races
Matt Mackall <mpm@selenic.com>
parents: 7634
diff changeset
277 fp1 = self._realopener(self.indexfile)
b8d750daadde Introduce HG_PREPEND to solve pretxn races
Matt Mackall <mpm@selenic.com>
parents: 7634
diff changeset
278 fp2 = self._realopener(self.indexfile + ".a", "w")
b8d750daadde Introduce HG_PREPEND to solve pretxn races
Matt Mackall <mpm@selenic.com>
parents: 7634
diff changeset
279 fp2.write(fp1.read())
b8d750daadde Introduce HG_PREPEND to solve pretxn races
Matt Mackall <mpm@selenic.com>
parents: 7634
diff changeset
280 # add pending data
b8d750daadde Introduce HG_PREPEND to solve pretxn races
Matt Mackall <mpm@selenic.com>
parents: 7634
diff changeset
281 fp2.write("".join(self._delaybuf))
b8d750daadde Introduce HG_PREPEND to solve pretxn races
Matt Mackall <mpm@selenic.com>
parents: 7634
diff changeset
282 fp2.close()
b8d750daadde Introduce HG_PREPEND to solve pretxn races
Matt Mackall <mpm@selenic.com>
parents: 7634
diff changeset
283 # 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
284 self._delaybuf = None
9164
b0d995b6b0a6 changelog: factor out _delayname
Matt Mackall <mpm@selenic.com>
parents: 9163
diff changeset
285 self._divert = True
23201
7e97bf6ee2d6 changelog: rework the delayupdate mechanism
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23088
diff changeset
286 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
287
9164
b0d995b6b0a6 changelog: factor out _delayname
Matt Mackall <mpm@selenic.com>
parents: 9163
diff changeset
288 if self._divert:
7787
b8d750daadde Introduce HG_PREPEND to solve pretxn races
Matt Mackall <mpm@selenic.com>
parents: 7634
diff changeset
289 return True
b8d750daadde Introduce HG_PREPEND to solve pretxn races
Matt Mackall <mpm@selenic.com>
parents: 7634
diff changeset
290
b8d750daadde Introduce HG_PREPEND to solve pretxn races
Matt Mackall <mpm@selenic.com>
parents: 7634
diff changeset
291 return False
b8d750daadde Introduce HG_PREPEND to solve pretxn races
Matt Mackall <mpm@selenic.com>
parents: 7634
diff changeset
292
4261
cd7b36b7869c restructure changelog file appending
Matt Mackall <mpm@selenic.com>
parents: 4258
diff changeset
293 def checkinlinesize(self, tr, fp=None):
9165
07f9b2f4a9aa changelog: swap opener to switch delay modes
Matt Mackall <mpm@selenic.com>
parents: 9164
diff changeset
294 if not self._delayed:
07f9b2f4a9aa changelog: swap opener to switch delay modes
Matt Mackall <mpm@selenic.com>
parents: 9164
diff changeset
295 revlog.revlog.checkinlinesize(self, tr, fp)
4261
cd7b36b7869c restructure changelog file appending
Matt Mackall <mpm@selenic.com>
parents: 4258
diff changeset
296
5744
9db7fd77417d changelog: remove extract function
Matt Mackall <mpm@selenic.com>
parents: 5450
diff changeset
297 def read(self, node):
3077
ad6aecaf4eed document changelog format
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 2859
diff changeset
298 """
ad6aecaf4eed document changelog format
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 2859
diff changeset
299 format used:
3233
2f35961854fb [extendedchangelog] add extra metadata in the changelog entry
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3232
diff changeset
300 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
301 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
302 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
303 : 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
304 : older versions ignore it
2f35961854fb [extendedchangelog] add extra metadata in the changelog entry
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3232
diff changeset
305 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
306 (.*) : 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
307
2f35961854fb [extendedchangelog] add extra metadata in the changelog entry
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3232
diff changeset
308 changelog v0 doesn't use extra
3077
ad6aecaf4eed document changelog format
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 2859
diff changeset
309 """
5744
9db7fd77417d changelog: remove extract function
Matt Mackall <mpm@selenic.com>
parents: 5450
diff changeset
310 text = self.revision(node)
37
a8811676c85a Move hex/bin bits to revlog
mpm@selenic.com
parents: 33
diff changeset
311 if not text:
16267
aa6821a7b52f changelog: micro-optimizations to changelog.read()
Matt Mackall <mpm@selenic.com>
parents: 15661
diff changeset
312 return (nullid, "", (0, 0), [], "", _defaultextra)
0
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
313 last = text.index("\n\n")
7948
de377b1a9a84 move encoding bits from util to encoding
Matt Mackall <mpm@selenic.com>
parents: 7807
diff changeset
314 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
315 l = text[:last].split('\n')
0
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
316 manifest = bin(l[0])
7948
de377b1a9a84 move encoding bits from util to encoding
Matt Mackall <mpm@selenic.com>
parents: 7807
diff changeset
317 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
318
16267
aa6821a7b52f changelog: micro-optimizations to changelog.read()
Matt Mackall <mpm@selenic.com>
parents: 15661
diff changeset
319 tdata = l[2].split(' ', 2)
aa6821a7b52f changelog: micro-optimizations to changelog.read()
Matt Mackall <mpm@selenic.com>
parents: 15661
diff changeset
320 if len(tdata) != 3:
aa6821a7b52f changelog: micro-optimizations to changelog.read()
Matt Mackall <mpm@selenic.com>
parents: 15661
diff changeset
321 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
322 try:
2f35961854fb [extendedchangelog] add extra metadata in the changelog entry
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3232
diff changeset
323 # 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
324 timezone = int(tdata[1])
14004
97ed99d1f419 eliminate various naked except clauses
Idan Kamara <idankk86@gmail.com>
parents: 10420
diff changeset
325 except ValueError:
3233
2f35961854fb [extendedchangelog] add extra metadata in the changelog entry
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3232
diff changeset
326 timezone = 0
16267
aa6821a7b52f changelog: micro-optimizations to changelog.read()
Matt Mackall <mpm@selenic.com>
parents: 15661
diff changeset
327 extra = _defaultextra
3233
2f35961854fb [extendedchangelog] add extra metadata in the changelog entry
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3232
diff changeset
328 else:
16267
aa6821a7b52f changelog: micro-optimizations to changelog.read()
Matt Mackall <mpm@selenic.com>
parents: 15661
diff changeset
329 time, timezone = float(tdata[0]), int(tdata[1])
aa6821a7b52f changelog: micro-optimizations to changelog.read()
Matt Mackall <mpm@selenic.com>
parents: 15661
diff changeset
330 extra = decodeextra(tdata[2])
aa6821a7b52f changelog: micro-optimizations to changelog.read()
Matt Mackall <mpm@selenic.com>
parents: 15661
diff changeset
331
0
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
332 files = l[3:]
3233
2f35961854fb [extendedchangelog] add extra metadata in the changelog entry
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3232
diff changeset
333 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
334
8422
437e06bbd11e changelog: removed bad default arguments in add method
Martin Geisler <mg@lazybytes.net>
parents: 8225
diff changeset
335 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
336 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
337 # 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
338 # 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
339 # 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
340 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
341
7035
9d023ef7b467 forbid username with '\n' at the changelog level
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6259
diff changeset
342 user = user.strip()
8424
c5b3d3e30de7 changelog: refuse to add revisions with empty usernames
Martin Geisler <mg@lazybytes.net>
parents: 7807
diff changeset
343 # 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
344 # 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
345 # 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
346 if not user:
c5b3d3e30de7 changelog: refuse to add revisions with empty usernames
Martin Geisler <mg@lazybytes.net>
parents: 7807
diff changeset
347 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
348 if "\n" in user:
7633
08cabecfa8a8 errors: move revlog errors
Matt Mackall <mpm@selenic.com>
parents: 7470
diff changeset
349 raise error.RevlogError(_("username %s contains a newline")
08cabecfa8a8 errors: move revlog errors
Matt Mackall <mpm@selenic.com>
parents: 7470
diff changeset
350 % repr(user))
8499
fb9b83df45f3 commit: move description trimming into changelog
Matt Mackall <mpm@selenic.com>
parents: 8443
diff changeset
351
17810
2894d180afa1 changelog: extract description cleaning logic in a dedicated function
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 17677
diff changeset
352 desc = stripdesc(desc)
8499
fb9b83df45f3 commit: move description trimming into changelog
Matt Mackall <mpm@selenic.com>
parents: 8443
diff changeset
353
1195
f92af8d53330 Validate user input of dates when adding a changelog entry.
Bryan O'Sullivan <bos@serpentine.com>
parents: 1095
diff changeset
354 if date:
2523
4ab59a3acd16 validate the resulting date in parsedate
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 2522
diff changeset
355 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
356 else:
2522
85f796baab10 Allow the use of human readable dates (issue 251)
Jose M. Prieto <jmprieto@gmx.net>
parents: 2142
diff changeset
357 parseddate = "%d %d" % util.makedate()
10417
58e040c51231 branch: avoid using reserved tag names
Wagner Bruna <wbruna@softwareexpress.com.br>
parents: 10263
diff changeset
358 if extra:
58e040c51231 branch: avoid using reserved tag names
Wagner Bruna <wbruna@softwareexpress.com.br>
parents: 10263
diff changeset
359 branch = extra.get("branch")
58e040c51231 branch: avoid using reserved tag names
Wagner Bruna <wbruna@softwareexpress.com.br>
parents: 10263
diff changeset
360 if branch in ("default", ""):
58e040c51231 branch: avoid using reserved tag names
Wagner Bruna <wbruna@softwareexpress.com.br>
parents: 10263
diff changeset
361 del extra["branch"]
58e040c51231 branch: avoid using reserved tag names
Wagner Bruna <wbruna@softwareexpress.com.br>
parents: 10263
diff changeset
362 elif branch in (".", "null", "tip"):
58e040c51231 branch: avoid using reserved tag names
Wagner Bruna <wbruna@softwareexpress.com.br>
parents: 10263
diff changeset
363 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
364 % branch)
3233
2f35961854fb [extendedchangelog] add extra metadata in the changelog entry
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3232
diff changeset
365 if extra:
8443
53ff4a5af284 changelog: turn {de,en}code_extra methods into functions
Martin Geisler <mg@lazybytes.net>
parents: 8442
diff changeset
366 extra = encodeextra(extra)
3233
2f35961854fb [extendedchangelog] add extra metadata in the changelog entry
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3232
diff changeset
367 parseddate = "%s %s" % (parseddate, extra)
8209
a1a5a57efe90 replace util.sort with sorted built-in
Matt Mackall <mpm@selenic.com>
parents: 7948
diff changeset
368 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
369 text = "\n".join(l)
6750
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6259
diff changeset
370 return self.addrevision(text, transaction, len(self), p1, p2)
18306
06185554e7e3 changelog: add a `branch` method, bypassing changectx
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 18231
diff changeset
371
20185
7d4219512823 branchmap: cache open/closed branch head information
Brodie Rao <brodie@sf.io>
parents: 19899
diff changeset
372 def branchinfo(self, rev):
7d4219512823 branchmap: cache open/closed branch head information
Brodie Rao <brodie@sf.io>
parents: 19899
diff changeset
373 """return the branch name and open/close state of a revision
18306
06185554e7e3 changelog: add a `branch` method, bypassing changectx
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 18231
diff changeset
374
18308
4e27b06a0fd9 changelog: please check-code and remove tabs
Mads Kiilerich <mads@kiilerich.com>
parents: 18306
diff changeset
375 This function exists because creating a changectx object
4e27b06a0fd9 changelog: please check-code and remove tabs
Mads Kiilerich <mads@kiilerich.com>
parents: 18306
diff changeset
376 just to access this is costly."""
20185
7d4219512823 branchmap: cache open/closed branch head information
Brodie Rao <brodie@sf.io>
parents: 19899
diff changeset
377 extra = self.read(rev)[5]
7d4219512823 branchmap: cache open/closed branch head information
Brodie Rao <brodie@sf.io>
parents: 19899
diff changeset
378 return encoding.tolocal(extra.get("branch")), 'close' in extra