Mercurial > public > mercurial-scm > hg

annotate mercurial/manifest.py @ 24322:f263814c72ac

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manifest: add dirs() to manifestdict Manifests should have a method of accessing its own dirs, not just the context that references the manifest. This makes it easier for other optimized versions of manifests to compute their own dirs in the most efficient way.
author Drew Gottlieb <drgott@google.com>
date Fri, 13 Mar 2015 15:19:54 -0700
parents 49cd847fd69a
children 149cc171e4a0
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1 # manifest.py - manifest revision 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 i18n import _
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9 import mdiff, parsers, error, revlog, util, scmutil
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10 import array, struct
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11
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12 propertycache = util.propertycache
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13
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14 class _lazymanifest(dict):
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15 """This is the pure implementation of lazymanifest.
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16
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17 It has not been optimized *at all* and is not lazy.
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18 """
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19
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20 def __init__(self, data):
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21 # This init method does a little bit of excessive-looking
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22 # precondition checking. This is so that the behavior of this
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23 # class exactly matches its C counterpart to try and help
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24 # prevent surprise breakage for anyone that develops against
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25 # the pure version.
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26 if data and data[-1] != '\n':
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27 raise ValueError('Manifest did not end in a newline.')
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28 dict.__init__(self)
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29 prev = None
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30 for l in data.splitlines():
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31 if prev is not None and prev > l:
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32 raise ValueError('Manifest lines not in sorted order.')
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33 prev = l
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34 f, n = l.split('\0')
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35 if len(n) > 40:
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36 self[f] = revlog.bin(n[:40]), n[40:]
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37 else:
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38 self[f] = revlog.bin(n), ''
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39
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40 def __setitem__(self, k, v):
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41 node, flag = v
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42 assert node is not None
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43 if len(node) > 21:
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44 node = node[:21] # match c implementation behavior
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45 dict.__setitem__(self, k, (node, flag))
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46
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47 def __iter__(self):
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48 return iter(sorted(dict.keys(self)))
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49
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50 def iterkeys(self):
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51 return iter(sorted(dict.keys(self)))
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52
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53 def iterentries(self):
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54 return ((f, e[0], e[1]) for f, e in sorted(self.iteritems()))
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55
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56 def copy(self):
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57 c = _lazymanifest('')
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58 c.update(self)
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59 return c
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60
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61 def diff(self, m2, clean=False):
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62 '''Finds changes between the current manifest and m2.'''
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63 diff = {}
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64
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65 for fn, e1 in self.iteritems():
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66 if fn not in m2:
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67 diff[fn] = e1, (None, '')
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68 else:
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69 e2 = m2[fn]
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70 if e1 != e2:
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71 diff[fn] = e1, e2
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72 elif clean:
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73 diff[fn] = None
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74
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75 for fn, e2 in m2.iteritems():
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76 if fn not in self:
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77 diff[fn] = (None, ''), e2
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78
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79 return diff
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80
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81 def filtercopy(self, filterfn):
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82 c = _lazymanifest('')
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83 for f, n, fl in self.iterentries():
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84 if filterfn(f):
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85 c[f] = n, fl
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86 return c
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87
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88 def text(self):
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89 """Get the full data of this manifest as a bytestring."""
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90 fl = sorted(self.iterentries())
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91
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92 _hex = revlog.hex
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93 # if this is changed to support newlines in filenames,
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94 # be sure to check the templates/ dir again (especially *-raw.tmpl)
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95 return ''.join("%s\0%s%s\n" % (
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96 f, _hex(n[:20]), flag) for f, n, flag in fl)
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97
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98 try:
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99 _lazymanifest = parsers.lazymanifest
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100 except AttributeError:
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101 pass
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102
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103 class manifestdict(object):
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104 def __init__(self, data=''):
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105 self._lm = _lazymanifest(data)
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106
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107 def __getitem__(self, key):
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108 return self._lm[key][0]
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109
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110 def find(self, key):
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111 return self._lm[key]
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112
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113 def __len__(self):
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114 return len(self._lm)
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115
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116 def __setitem__(self, key, node):
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117 self._lm[key] = node, self.flags(key, '')
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118
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119 def __contains__(self, key):
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120 return key in self._lm
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121
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122 def __delitem__(self, key):
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123 del self._lm[key]
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124
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125 def __iter__(self):
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126 return self._lm.__iter__()
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127
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128 def iterkeys(self):
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129 return self._lm.iterkeys()
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130
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131 def keys(self):
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132 return list(self.iterkeys())
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133
21879
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diff changeset
134 def intersectfiles(self, files):
24225
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parents: 24224
diff changeset
135 '''make a new lazymanifest with the intersection of self with files
21879
090dcaaf3fff manifestdict: add a new method to intersect with a set of files
Siddharth Agarwal <sid0@fb.com>
parents: 20075
diff changeset
136
090dcaaf3fff manifestdict: add a new method to intersect with a set of files
Siddharth Agarwal <sid0@fb.com>
parents: 20075
diff changeset
137 The algorithm assumes that files is much smaller than self.'''
090dcaaf3fff manifestdict: add a new method to intersect with a set of files
Siddharth Agarwal <sid0@fb.com>
parents: 20075
diff changeset
138 ret = manifestdict()
24225
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Augie Fackler <augie@google.com>
parents: 24224
diff changeset
139 lm = self._lm
21879
090dcaaf3fff manifestdict: add a new method to intersect with a set of files
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parents: 20075
diff changeset
140 for fn in files:
24225
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Augie Fackler <augie@google.com>
parents: 24224
diff changeset
141 if fn in lm:
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parents: 24224
diff changeset
142 ret._lm[fn] = self._lm[fn]
21879
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diff changeset
143 return ret
22964
2793ecb1522d manifest: repurpose flagsdiff() into (node-and-flag)diff()
Martin von Zweigbergk <martinvonz@gmail.com>
parents: 22943
diff changeset
144
24184
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Martin von Zweigbergk <martinvonz@google.com>
parents: 24147
diff changeset
145 def filesnotin(self, m2):
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parents: 24147
diff changeset
146 '''Set of files in this manifest that are not in the other'''
24298
49cd847fd69a lazymanifest: make __iter__ generate filenames, not 3-tuples
Martin von Zweigbergk <martinvonz@google.com>
parents: 24297
diff changeset
147 files = set(self)
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parents: 24297
diff changeset
148 files.difference_update(m2)
24184
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parents: 24147
diff changeset
149 return files
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parents: 24147
diff changeset
150
24322
f263814c72ac manifest: add dirs() to manifestdict
Drew Gottlieb <drgott@google.com>
parents: 24298
diff changeset
151 @propertycache
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Drew Gottlieb <drgott@google.com>
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diff changeset
152 def _dirs(self):
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Drew Gottlieb <drgott@google.com>
parents: 24298
diff changeset
153 return scmutil.dirs(self)
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Drew Gottlieb <drgott@google.com>
parents: 24298
diff changeset
154
f263814c72ac manifest: add dirs() to manifestdict
Drew Gottlieb <drgott@google.com>
parents: 24298
diff changeset
155 def dirs(self):
f263814c72ac manifest: add dirs() to manifestdict
Drew Gottlieb <drgott@google.com>
parents: 24298
diff changeset
156 return self._dirs
f263814c72ac manifest: add dirs() to manifestdict
Drew Gottlieb <drgott@google.com>
parents: 24298
diff changeset
157
23305
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Martin von Zweigbergk <martinvonz@google.com>
parents: 22966
diff changeset
158 def matches(self, match):
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parents: 22966
diff changeset
159 '''generate a new manifest filtered by the match argument'''
0cc283f44655 manifest: add matches() method
Martin von Zweigbergk <martinvonz@google.com>
parents: 22966
diff changeset
160 if match.always():
0cc283f44655 manifest: add matches() method
Martin von Zweigbergk <martinvonz@google.com>
parents: 22966
diff changeset
161 return self.copy()
0cc283f44655 manifest: add matches() method
Martin von Zweigbergk <martinvonz@google.com>
parents: 22966
diff changeset
162
0cc283f44655 manifest: add matches() method
Martin von Zweigbergk <martinvonz@google.com>
parents: 22966
diff changeset
163 files = match.files()
0cc283f44655 manifest: add matches() method
Martin von Zweigbergk <martinvonz@google.com>
parents: 22966
diff changeset
164 if (match.matchfn == match.exact or
0cc283f44655 manifest: add matches() method
Martin von Zweigbergk <martinvonz@google.com>
parents: 22966
diff changeset
165 (not match.anypats() and util.all(fn in self for fn in files))):
0cc283f44655 manifest: add matches() method
Martin von Zweigbergk <martinvonz@google.com>
parents: 22966
diff changeset
166 return self.intersectfiles(files)
0cc283f44655 manifest: add matches() method
Martin von Zweigbergk <martinvonz@google.com>
parents: 22966
diff changeset
167
24225
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Augie Fackler <augie@google.com>
parents: 24224
diff changeset
168 lm = manifestdict('')
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parents: 24224
diff changeset
169 lm._lm = self._lm.filtercopy(match)
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parents: 24224
diff changeset
170 return lm
23305
0cc283f44655 manifest: add matches() method
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parents: 22966
diff changeset
171
23756
829f640b5540 manifest: add optional recording of clean entries to diff
Augie Fackler <augie@google.com>
parents: 23602
diff changeset
172 def diff(self, m2, clean=False):
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Augie Fackler <augie@google.com>
parents: 23602
diff changeset
173 '''Finds changes between the current manifest and m2.
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Augie Fackler <augie@google.com>
parents: 23602
diff changeset
174
829f640b5540 manifest: add optional recording of clean entries to diff
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parents: 23602
diff changeset
175 Args:
829f640b5540 manifest: add optional recording of clean entries to diff
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parents: 23602
diff changeset
176 m2: the manifest to which this manifest should be compared.
829f640b5540 manifest: add optional recording of clean entries to diff
Augie Fackler <augie@google.com>
parents: 23602
diff changeset
177 clean: if true, include files unchanged between these manifests
829f640b5540 manifest: add optional recording of clean entries to diff
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parents: 23602
diff changeset
178 with a None value in the returned dictionary.
829f640b5540 manifest: add optional recording of clean entries to diff
Augie Fackler <augie@google.com>
parents: 23602
diff changeset
179
829f640b5540 manifest: add optional recording of clean entries to diff
Augie Fackler <augie@google.com>
parents: 23602
diff changeset
180 The result is returned as a dict with filename as key and
829f640b5540 manifest: add optional recording of clean entries to diff
Augie Fackler <augie@google.com>
parents: 23602
diff changeset
181 values of the form ((n1,fl1),(n2,fl2)), where n1/n2 is the
829f640b5540 manifest: add optional recording of clean entries to diff
Augie Fackler <augie@google.com>
parents: 23602
diff changeset
182 nodeid in the current/other manifest and fl1/fl2 is the flag
829f640b5540 manifest: add optional recording of clean entries to diff
Augie Fackler <augie@google.com>
parents: 23602
diff changeset
183 in the current/other manifest. Where the file does not exist,
829f640b5540 manifest: add optional recording of clean entries to diff
Augie Fackler <augie@google.com>
parents: 23602
diff changeset
184 the nodeid will be None and the flags will be the empty
829f640b5540 manifest: add optional recording of clean entries to diff
Augie Fackler <augie@google.com>
parents: 23602
diff changeset
185 string.
829f640b5540 manifest: add optional recording of clean entries to diff
Augie Fackler <augie@google.com>
parents: 23602
diff changeset
186 '''
24225
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Augie Fackler <augie@google.com>
parents: 24224
diff changeset
187 return self._lm.diff(m2._lm, clean)
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Augie Fackler <augie@google.com>
parents: 24224
diff changeset
188
3e5c4af69808 manifest: split manifestdict into high-level and low-level logic
Augie Fackler <augie@google.com>
parents: 24224
diff changeset
189 def setflag(self, key, flag):
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Augie Fackler <augie@google.com>
parents: 24224
diff changeset
190 self._lm[key] = self[key], flag
3e5c4af69808 manifest: split manifestdict into high-level and low-level logic
Augie Fackler <augie@google.com>
parents: 24224
diff changeset
191
3e5c4af69808 manifest: split manifestdict into high-level and low-level logic
Augie Fackler <augie@google.com>
parents: 24224
diff changeset
192 def get(self, key, default=None):
3e5c4af69808 manifest: split manifestdict into high-level and low-level logic
Augie Fackler <augie@google.com>
parents: 24224
diff changeset
193 try:
3e5c4af69808 manifest: split manifestdict into high-level and low-level logic
Augie Fackler <augie@google.com>
parents: 24224
diff changeset
194 return self._lm[key][0]
3e5c4af69808 manifest: split manifestdict into high-level and low-level logic
Augie Fackler <augie@google.com>
parents: 24224
diff changeset
195 except KeyError:
3e5c4af69808 manifest: split manifestdict into high-level and low-level logic
Augie Fackler <augie@google.com>
parents: 24224
diff changeset
196 return default
22965
b697fa74b475 manifest: for diff(), only iterate over files, not flags
Martin von Zweigbergk <martinvonz@gmail.com>
parents: 22964
diff changeset
197
24225
3e5c4af69808 manifest: split manifestdict into high-level and low-level logic
Augie Fackler <augie@google.com>
parents: 24224
diff changeset
198 def flags(self, key, default=''):
3e5c4af69808 manifest: split manifestdict into high-level and low-level logic
Augie Fackler <augie@google.com>
parents: 24224
diff changeset
199 try:
3e5c4af69808 manifest: split manifestdict into high-level and low-level logic
Augie Fackler <augie@google.com>
parents: 24224
diff changeset
200 return self._lm[key][1]
3e5c4af69808 manifest: split manifestdict into high-level and low-level logic
Augie Fackler <augie@google.com>
parents: 24224
diff changeset
201 except KeyError:
3e5c4af69808 manifest: split manifestdict into high-level and low-level logic
Augie Fackler <augie@google.com>
parents: 24224
diff changeset
202 return default
22965
b697fa74b475 manifest: for diff(), only iterate over files, not flags
Martin von Zweigbergk <martinvonz@gmail.com>
parents: 22964
diff changeset
203
24225
3e5c4af69808 manifest: split manifestdict into high-level and low-level logic
Augie Fackler <augie@google.com>
parents: 24224
diff changeset
204 def copy(self):
3e5c4af69808 manifest: split manifestdict into high-level and low-level logic
Augie Fackler <augie@google.com>
parents: 24224
diff changeset
205 c = manifestdict('')
3e5c4af69808 manifest: split manifestdict into high-level and low-level logic
Augie Fackler <augie@google.com>
parents: 24224
diff changeset
206 c._lm = self._lm.copy()
3e5c4af69808 manifest: split manifestdict into high-level and low-level logic
Augie Fackler <augie@google.com>
parents: 24224
diff changeset
207 return c
3e5c4af69808 manifest: split manifestdict into high-level and low-level logic
Augie Fackler <augie@google.com>
parents: 24224
diff changeset
208
3e5c4af69808 manifest: split manifestdict into high-level and low-level logic
Augie Fackler <augie@google.com>
parents: 24224
diff changeset
209 def iteritems(self):
24298
49cd847fd69a lazymanifest: make __iter__ generate filenames, not 3-tuples
Martin von Zweigbergk <martinvonz@google.com>
parents: 24297
diff changeset
210 return (x[:2] for x in self._lm.iterentries())
2831
0b50a580be36 Add manifestflags class
Matt Mackall <mpm@selenic.com>
parents: 2470
diff changeset
211
22929
bf69cb09a6c9 manifest: move manifestdict-to-text encoding to manifest class
Augie Fackler <raf@durin42.com>
parents: 22788
diff changeset
212 def text(self):
24225
3e5c4af69808 manifest: split manifestdict into high-level and low-level logic
Augie Fackler <augie@google.com>
parents: 24224
diff changeset
213 return self._lm.text()
22408
dc97e04c12ad manifest: move checkforbidden to module-level
Augie Fackler <raf@durin42.com>
parents: 21879
diff changeset
214
22931
48c0b101a9de manifest: add fastdelta method to manifestdict
Augie Fackler <raf@durin42.com>
parents: 22930
diff changeset
215 def fastdelta(self, base, changes):
48c0b101a9de manifest: add fastdelta method to manifestdict
Augie Fackler <raf@durin42.com>
parents: 22930
diff changeset
216 """Given a base manifest text as an array.array and a list of changes
48c0b101a9de manifest: add fastdelta method to manifestdict
Augie Fackler <raf@durin42.com>
parents: 22930
diff changeset
217 relative to that text, compute a delta that can be used by revlog.
48c0b101a9de manifest: add fastdelta method to manifestdict
Augie Fackler <raf@durin42.com>
parents: 22930
diff changeset
218 """
48c0b101a9de manifest: add fastdelta method to manifestdict
Augie Fackler <raf@durin42.com>
parents: 22930
diff changeset
219 delta = []
48c0b101a9de manifest: add fastdelta method to manifestdict
Augie Fackler <raf@durin42.com>
parents: 22930
diff changeset
220 dstart = None
48c0b101a9de manifest: add fastdelta method to manifestdict
Augie Fackler <raf@durin42.com>
parents: 22930
diff changeset
221 dend = None
48c0b101a9de manifest: add fastdelta method to manifestdict
Augie Fackler <raf@durin42.com>
parents: 22930
diff changeset
222 dline = [""]
48c0b101a9de manifest: add fastdelta method to manifestdict
Augie Fackler <raf@durin42.com>
parents: 22930
diff changeset
223 start = 0
48c0b101a9de manifest: add fastdelta method to manifestdict
Augie Fackler <raf@durin42.com>
parents: 22930
diff changeset
224 # zero copy representation of base as a buffer
48c0b101a9de manifest: add fastdelta method to manifestdict
Augie Fackler <raf@durin42.com>
parents: 22930
diff changeset
225 addbuf = util.buffer(base)
48c0b101a9de manifest: add fastdelta method to manifestdict
Augie Fackler <raf@durin42.com>
parents: 22930
diff changeset
226
48c0b101a9de manifest: add fastdelta method to manifestdict
Augie Fackler <raf@durin42.com>
parents: 22930
diff changeset
227 # start with a readonly loop that finds the offset of
48c0b101a9de manifest: add fastdelta method to manifestdict
Augie Fackler <raf@durin42.com>
parents: 22930
diff changeset
228 # each line and creates the deltas
48c0b101a9de manifest: add fastdelta method to manifestdict
Augie Fackler <raf@durin42.com>
parents: 22930
diff changeset
229 for f, todelete in changes:
48c0b101a9de manifest: add fastdelta method to manifestdict
Augie Fackler <raf@durin42.com>
parents: 22930
diff changeset
230 # bs will either be the index of the item or the insert point
48c0b101a9de manifest: add fastdelta method to manifestdict
Augie Fackler <raf@durin42.com>
parents: 22930
diff changeset
231 start, end = _msearch(addbuf, f, start)
48c0b101a9de manifest: add fastdelta method to manifestdict
Augie Fackler <raf@durin42.com>
parents: 22930
diff changeset
232 if not todelete:
24225
3e5c4af69808 manifest: split manifestdict into high-level and low-level logic
Augie Fackler <augie@google.com>
parents: 24224
diff changeset
233 h, fl = self._lm[f]
3e5c4af69808 manifest: split manifestdict into high-level and low-level logic
Augie Fackler <augie@google.com>
parents: 24224
diff changeset
234 l = "%s\0%s%s\n" % (f, revlog.hex(h), fl)
22931
48c0b101a9de manifest: add fastdelta method to manifestdict
Augie Fackler <raf@durin42.com>
parents: 22930
diff changeset
235 else:
48c0b101a9de manifest: add fastdelta method to manifestdict
Augie Fackler <raf@durin42.com>
parents: 22930
diff changeset
236 if start == end:
48c0b101a9de manifest: add fastdelta method to manifestdict
Augie Fackler <raf@durin42.com>
parents: 22930
diff changeset
237 # item we want to delete was not found, error out
48c0b101a9de manifest: add fastdelta method to manifestdict
Augie Fackler <raf@durin42.com>
parents: 22930
diff changeset
238 raise AssertionError(
48c0b101a9de manifest: add fastdelta method to manifestdict
Augie Fackler <raf@durin42.com>
parents: 22930
diff changeset
239 _("failed to remove %s from manifest") % f)
48c0b101a9de manifest: add fastdelta method to manifestdict
Augie Fackler <raf@durin42.com>
parents: 22930
diff changeset
240 l = ""
48c0b101a9de manifest: add fastdelta method to manifestdict
Augie Fackler <raf@durin42.com>
parents: 22930
diff changeset
241 if dstart is not None and dstart <= start and dend >= start:
48c0b101a9de manifest: add fastdelta method to manifestdict
Augie Fackler <raf@durin42.com>
parents: 22930
diff changeset
242 if dend < end:
48c0b101a9de manifest: add fastdelta method to manifestdict
Augie Fackler <raf@durin42.com>
parents: 22930
diff changeset
243 dend = end
48c0b101a9de manifest: add fastdelta method to manifestdict
Augie Fackler <raf@durin42.com>
parents: 22930
diff changeset
244 if l:
48c0b101a9de manifest: add fastdelta method to manifestdict
Augie Fackler <raf@durin42.com>
parents: 22930
diff changeset
245 dline.append(l)
48c0b101a9de manifest: add fastdelta method to manifestdict
Augie Fackler <raf@durin42.com>
parents: 22930
diff changeset
246 else:
48c0b101a9de manifest: add fastdelta method to manifestdict
Augie Fackler <raf@durin42.com>
parents: 22930
diff changeset
247 if dstart is not None:
48c0b101a9de manifest: add fastdelta method to manifestdict
Augie Fackler <raf@durin42.com>
parents: 22930
diff changeset
248 delta.append([dstart, dend, "".join(dline)])
48c0b101a9de manifest: add fastdelta method to manifestdict
Augie Fackler <raf@durin42.com>
parents: 22930
diff changeset
249 dstart = start
48c0b101a9de manifest: add fastdelta method to manifestdict
Augie Fackler <raf@durin42.com>
parents: 22930
diff changeset
250 dend = end
48c0b101a9de manifest: add fastdelta method to manifestdict
Augie Fackler <raf@durin42.com>
parents: 22930
diff changeset
251 dline = [l]
48c0b101a9de manifest: add fastdelta method to manifestdict
Augie Fackler <raf@durin42.com>
parents: 22930
diff changeset
252
48c0b101a9de manifest: add fastdelta method to manifestdict
Augie Fackler <raf@durin42.com>
parents: 22930
diff changeset
253 if dstart is not None:
48c0b101a9de manifest: add fastdelta method to manifestdict
Augie Fackler <raf@durin42.com>
parents: 22930
diff changeset
254 delta.append([dstart, dend, "".join(dline)])
48c0b101a9de manifest: add fastdelta method to manifestdict
Augie Fackler <raf@durin42.com>
parents: 22930
diff changeset
255 # apply the delta to the base, and get a delta for addrevision
48c0b101a9de manifest: add fastdelta method to manifestdict
Augie Fackler <raf@durin42.com>
parents: 22930
diff changeset
256 deltatext, arraytext = _addlistdelta(base, delta)
48c0b101a9de manifest: add fastdelta method to manifestdict
Augie Fackler <raf@durin42.com>
parents: 22930
diff changeset
257 return arraytext, deltatext
48c0b101a9de manifest: add fastdelta method to manifestdict
Augie Fackler <raf@durin42.com>
parents: 22930
diff changeset
258
22930
1acb81d10eaf manifest: move _search to module level and rename to _msearch
Augie Fackler <raf@durin42.com>
parents: 22929
diff changeset
259 def _msearch(m, s, lo=0, hi=None):
1acb81d10eaf manifest: move _search to module level and rename to _msearch
Augie Fackler <raf@durin42.com>
parents: 22929
diff changeset
260 '''return a tuple (start, end) that says where to find s within m.
1acb81d10eaf manifest: move _search to module level and rename to _msearch
Augie Fackler <raf@durin42.com>
parents: 22929
diff changeset
261
1acb81d10eaf manifest: move _search to module level and rename to _msearch
Augie Fackler <raf@durin42.com>
parents: 22929
diff changeset
262 If the string is found m[start:end] are the line containing
1acb81d10eaf manifest: move _search to module level and rename to _msearch
Augie Fackler <raf@durin42.com>
parents: 22929
diff changeset
263 that string. If start == end the string was not found and
1acb81d10eaf manifest: move _search to module level and rename to _msearch
Augie Fackler <raf@durin42.com>
parents: 22929
diff changeset
264 they indicate the proper sorted insertion point.
1acb81d10eaf manifest: move _search to module level and rename to _msearch
Augie Fackler <raf@durin42.com>
parents: 22929
diff changeset
265
1acb81d10eaf manifest: move _search to module level and rename to _msearch
Augie Fackler <raf@durin42.com>
parents: 22929
diff changeset
266 m should be a buffer or a string
1acb81d10eaf manifest: move _search to module level and rename to _msearch
Augie Fackler <raf@durin42.com>
parents: 22929
diff changeset
267 s is a string'''
1acb81d10eaf manifest: move _search to module level and rename to _msearch
Augie Fackler <raf@durin42.com>
parents: 22929
diff changeset
268 def advance(i, c):
1acb81d10eaf manifest: move _search to module level and rename to _msearch
Augie Fackler <raf@durin42.com>
parents: 22929
diff changeset
269 while i < lenm and m[i] != c:
1acb81d10eaf manifest: move _search to module level and rename to _msearch
Augie Fackler <raf@durin42.com>
parents: 22929
diff changeset
270 i += 1
1acb81d10eaf manifest: move _search to module level and rename to _msearch
Augie Fackler <raf@durin42.com>
parents: 22929
diff changeset
271 return i
1acb81d10eaf manifest: move _search to module level and rename to _msearch
Augie Fackler <raf@durin42.com>
parents: 22929
diff changeset
272 if not s:
1acb81d10eaf manifest: move _search to module level and rename to _msearch
Augie Fackler <raf@durin42.com>
parents: 22929
diff changeset
273 return (lo, lo)
1acb81d10eaf manifest: move _search to module level and rename to _msearch
Augie Fackler <raf@durin42.com>
parents: 22929
diff changeset
274 lenm = len(m)
1acb81d10eaf manifest: move _search to module level and rename to _msearch
Augie Fackler <raf@durin42.com>
parents: 22929
diff changeset
275 if not hi:
1acb81d10eaf manifest: move _search to module level and rename to _msearch
Augie Fackler <raf@durin42.com>
parents: 22929
diff changeset
276 hi = lenm
1acb81d10eaf manifest: move _search to module level and rename to _msearch
Augie Fackler <raf@durin42.com>
parents: 22929
diff changeset
277 while lo < hi:
1acb81d10eaf manifest: move _search to module level and rename to _msearch
Augie Fackler <raf@durin42.com>
parents: 22929
diff changeset
278 mid = (lo + hi) // 2
1acb81d10eaf manifest: move _search to module level and rename to _msearch
Augie Fackler <raf@durin42.com>
parents: 22929
diff changeset
279 start = mid
1acb81d10eaf manifest: move _search to module level and rename to _msearch
Augie Fackler <raf@durin42.com>
parents: 22929
diff changeset
280 while start > 0 and m[start - 1] != '\n':
1acb81d10eaf manifest: move _search to module level and rename to _msearch
Augie Fackler <raf@durin42.com>
parents: 22929
diff changeset
281 start -= 1
1acb81d10eaf manifest: move _search to module level and rename to _msearch
Augie Fackler <raf@durin42.com>
parents: 22929
diff changeset
282 end = advance(start, '\0')
1acb81d10eaf manifest: move _search to module level and rename to _msearch
Augie Fackler <raf@durin42.com>
parents: 22929
diff changeset
283 if m[start:end] < s:
1acb81d10eaf manifest: move _search to module level and rename to _msearch
Augie Fackler <raf@durin42.com>
parents: 22929
diff changeset
284 # we know that after the null there are 40 bytes of sha1
1acb81d10eaf manifest: move _search to module level and rename to _msearch
Augie Fackler <raf@durin42.com>
parents: 22929
diff changeset
285 # this translates to the bisect lo = mid + 1
1acb81d10eaf manifest: move _search to module level and rename to _msearch
Augie Fackler <raf@durin42.com>
parents: 22929
diff changeset
286 lo = advance(end + 40, '\n') + 1
1acb81d10eaf manifest: move _search to module level and rename to _msearch
Augie Fackler <raf@durin42.com>
parents: 22929
diff changeset
287 else:
1acb81d10eaf manifest: move _search to module level and rename to _msearch
Augie Fackler <raf@durin42.com>
parents: 22929
diff changeset
288 # this translates to the bisect hi = mid
1acb81d10eaf manifest: move _search to module level and rename to _msearch
Augie Fackler <raf@durin42.com>
parents: 22929
diff changeset
289 hi = start
1acb81d10eaf manifest: move _search to module level and rename to _msearch
Augie Fackler <raf@durin42.com>
parents: 22929
diff changeset
290 end = advance(lo, '\0')
1acb81d10eaf manifest: move _search to module level and rename to _msearch
Augie Fackler <raf@durin42.com>
parents: 22929
diff changeset
291 found = m[lo:end]
1acb81d10eaf manifest: move _search to module level and rename to _msearch
Augie Fackler <raf@durin42.com>
parents: 22929
diff changeset
292 if s == found:
1acb81d10eaf manifest: move _search to module level and rename to _msearch
Augie Fackler <raf@durin42.com>
parents: 22929
diff changeset
293 # we know that after the null there are 40 bytes of sha1
1acb81d10eaf manifest: move _search to module level and rename to _msearch
Augie Fackler <raf@durin42.com>
parents: 22929
diff changeset
294 end = advance(end + 40, '\n')
1acb81d10eaf manifest: move _search to module level and rename to _msearch
Augie Fackler <raf@durin42.com>
parents: 22929
diff changeset
295 return (lo, end + 1)
1acb81d10eaf manifest: move _search to module level and rename to _msearch
Augie Fackler <raf@durin42.com>
parents: 22929
diff changeset
296 else:
1acb81d10eaf manifest: move _search to module level and rename to _msearch
Augie Fackler <raf@durin42.com>
parents: 22929
diff changeset
297 return (lo, lo)
1acb81d10eaf manifest: move _search to module level and rename to _msearch
Augie Fackler <raf@durin42.com>
parents: 22929
diff changeset
298
22415
65ec6c5c0fb3 manifest: mark addlistdelta and checkforbidden as module-private
Augie Fackler <raf@durin42.com>
parents: 22409
diff changeset
299 def _checkforbidden(l):
22408
dc97e04c12ad manifest: move checkforbidden to module-level
Augie Fackler <raf@durin42.com>
parents: 21879
diff changeset
300 """Check filenames for illegal characters."""
dc97e04c12ad manifest: move checkforbidden to module-level
Augie Fackler <raf@durin42.com>
parents: 21879
diff changeset
301 for f in l:
dc97e04c12ad manifest: move checkforbidden to module-level
Augie Fackler <raf@durin42.com>
parents: 21879
diff changeset
302 if '\n' in f or '\r' in f:
dc97e04c12ad manifest: move checkforbidden to module-level
Augie Fackler <raf@durin42.com>
parents: 21879
diff changeset
303 raise error.RevlogError(
dc97e04c12ad manifest: move checkforbidden to module-level
Augie Fackler <raf@durin42.com>
parents: 21879
diff changeset
304 _("'\\n' and '\\r' disallowed in filenames: %r") % f)
dc97e04c12ad manifest: move checkforbidden to module-level
Augie Fackler <raf@durin42.com>
parents: 21879
diff changeset
305
dc97e04c12ad manifest: move checkforbidden to module-level
Augie Fackler <raf@durin42.com>
parents: 21879
diff changeset
306
22409
8f09b785b59b manifest: move addlistdelta to module-level
Augie Fackler <raf@durin42.com>
parents: 22408
diff changeset
307 # apply the changes collected during the bisect loop to our addlist
8f09b785b59b manifest: move addlistdelta to module-level
Augie Fackler <raf@durin42.com>
parents: 22408
diff changeset
308 # return a delta suitable for addrevision
22415
65ec6c5c0fb3 manifest: mark addlistdelta and checkforbidden as module-private
Augie Fackler <raf@durin42.com>
parents: 22409
diff changeset
309 def _addlistdelta(addlist, x):
22409
8f09b785b59b manifest: move addlistdelta to module-level
Augie Fackler <raf@durin42.com>
parents: 22408
diff changeset
310 # for large addlist arrays, building a new array is cheaper
8f09b785b59b manifest: move addlistdelta to module-level
Augie Fackler <raf@durin42.com>
parents: 22408
diff changeset
311 # than repeatedly modifying the existing one
8f09b785b59b manifest: move addlistdelta to module-level
Augie Fackler <raf@durin42.com>
parents: 22408
diff changeset
312 currentposition = 0
8f09b785b59b manifest: move addlistdelta to module-level
Augie Fackler <raf@durin42.com>
parents: 22408
diff changeset
313 newaddlist = array.array('c')
8f09b785b59b manifest: move addlistdelta to module-level
Augie Fackler <raf@durin42.com>
parents: 22408
diff changeset
314
8f09b785b59b manifest: move addlistdelta to module-level
Augie Fackler <raf@durin42.com>
parents: 22408
diff changeset
315 for start, end, content in x:
8f09b785b59b manifest: move addlistdelta to module-level
Augie Fackler <raf@durin42.com>
parents: 22408
diff changeset
316 newaddlist += addlist[currentposition:start]
8f09b785b59b manifest: move addlistdelta to module-level
Augie Fackler <raf@durin42.com>
parents: 22408
diff changeset
317 if content:
8f09b785b59b manifest: move addlistdelta to module-level
Augie Fackler <raf@durin42.com>
parents: 22408
diff changeset
318 newaddlist += array.array('c', content)
8f09b785b59b manifest: move addlistdelta to module-level
Augie Fackler <raf@durin42.com>
parents: 22408
diff changeset
319
8f09b785b59b manifest: move addlistdelta to module-level
Augie Fackler <raf@durin42.com>
parents: 22408
diff changeset
320 currentposition = end
8f09b785b59b manifest: move addlistdelta to module-level
Augie Fackler <raf@durin42.com>
parents: 22408
diff changeset
321
8f09b785b59b manifest: move addlistdelta to module-level
Augie Fackler <raf@durin42.com>
parents: 22408
diff changeset
322 newaddlist += addlist[currentposition:]
8f09b785b59b manifest: move addlistdelta to module-level
Augie Fackler <raf@durin42.com>
parents: 22408
diff changeset
323
8f09b785b59b manifest: move addlistdelta to module-level
Augie Fackler <raf@durin42.com>
parents: 22408
diff changeset
324 deltatext = "".join(struct.pack(">lll", start, end, len(content))
8f09b785b59b manifest: move addlistdelta to module-level
Augie Fackler <raf@durin42.com>
parents: 22408
diff changeset
325 + content for start, end, content in x)
8f09b785b59b manifest: move addlistdelta to module-level
Augie Fackler <raf@durin42.com>
parents: 22408
diff changeset
326 return deltatext, newaddlist
8f09b785b59b manifest: move addlistdelta to module-level
Augie Fackler <raf@durin42.com>
parents: 22408
diff changeset
327
7634
14a4337a9b9b revlog: kill from-style imports
Matt Mackall <mpm@selenic.com>
parents: 7633
diff changeset
328 class manifest(revlog.revlog):
4258
b11a2fb59cf5 revlog: simplify revlog version handling
Matt Mackall <mpm@selenic.com>
parents: 4257
diff changeset
329 def __init__(self, opener):
24033
ed5e8a9598ce manifest: make lru size configurable
Durham Goode <durham@fb.com>
parents: 23758
diff changeset
330 # During normal operations, we expect to deal with not more than four
ed5e8a9598ce manifest: make lru size configurable
Durham Goode <durham@fb.com>
parents: 23758
diff changeset
331 # revs at a time (such as during commit --amend). When rebasing large
ed5e8a9598ce manifest: make lru size configurable
Durham Goode <durham@fb.com>
parents: 23758
diff changeset
332 # stacks of commits, the number can go up, hence the config knob below.
ed5e8a9598ce manifest: make lru size configurable
Durham Goode <durham@fb.com>
parents: 23758
diff changeset
333 cachesize = 4
ed5e8a9598ce manifest: make lru size configurable
Durham Goode <durham@fb.com>
parents: 23758
diff changeset
334 opts = getattr(opener, 'options', None)
ed5e8a9598ce manifest: make lru size configurable
Durham Goode <durham@fb.com>
parents: 23758
diff changeset
335 if opts is not None:
ed5e8a9598ce manifest: make lru size configurable
Durham Goode <durham@fb.com>
parents: 23758
diff changeset
336 cachesize = opts.get('manifestcachesize', cachesize)
ed5e8a9598ce manifest: make lru size configurable
Durham Goode <durham@fb.com>
parents: 23758
diff changeset
337 self._mancache = util.lrucachedict(cachesize)
7634
14a4337a9b9b revlog: kill from-style imports
Matt Mackall <mpm@selenic.com>
parents: 7633
diff changeset
338 revlog.revlog.__init__(self, opener, "00manifest.i")
0
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
339
3196
f3b939444c72 Abstract manifest block parsing.
Brendan Cully <brendan@kublai.com>
parents: 3148
diff changeset
340 def readdelta(self, node):
7362
6db4a2ccef3a revlog: remove delta function
Matt Mackall <mpm@selenic.com>
parents: 6765
diff changeset
341 r = self.rev(node)
24224
d71837d06597 manifest: do parsing inside manifestdict contstructor
Augie Fackler <augie@google.com>
parents: 24223
diff changeset
342 d = mdiff.patchtext(self.revdiff(self.deltaparent(r), r))
d71837d06597 manifest: do parsing inside manifestdict contstructor
Augie Fackler <augie@google.com>
parents: 24223
diff changeset
343 return manifestdict(d)
3223
53e843840349 Whitespace/Tab cleanup
Thomas Arendsen Hein <thomas@intevation.de>
parents: 3196
diff changeset
344
13711
ed913fd7837b manifest: add readfast method
Matt Mackall <mpm@selenic.com>
parents: 13031
diff changeset
345 def readfast(self, node):
ed913fd7837b manifest: add readfast method
Matt Mackall <mpm@selenic.com>
parents: 13031
diff changeset
346 '''use the faster of readdelta or read'''
ed913fd7837b manifest: add readfast method
Matt Mackall <mpm@selenic.com>
parents: 13031
diff changeset
347 r = self.rev(node)
14208
d62d597b8974 revlog: compute correct deltaparent in the deltaparent function
Sune Foldager <cryo@cyanite.org>
parents: 13711
diff changeset
348 deltaparent = self.deltaparent(r)
d62d597b8974 revlog: compute correct deltaparent in the deltaparent function
Sune Foldager <cryo@cyanite.org>
parents: 13711
diff changeset
349 if deltaparent != revlog.nullrev and deltaparent in self.parentrevs(r):
13711
ed913fd7837b manifest: add readfast method
Matt Mackall <mpm@selenic.com>
parents: 13031
diff changeset
350 return self.readdelta(node)
ed913fd7837b manifest: add readfast method
Matt Mackall <mpm@selenic.com>
parents: 13031
diff changeset
351 return self.read(node)
ed913fd7837b manifest: add readfast method
Matt Mackall <mpm@selenic.com>
parents: 13031
diff changeset
352
0
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
353 def read(self, node):
7634
14a4337a9b9b revlog: kill from-style imports
Matt Mackall <mpm@selenic.com>
parents: 7633
diff changeset
354 if node == revlog.nullid:
14a4337a9b9b revlog: kill from-style imports
Matt Mackall <mpm@selenic.com>
parents: 7633
diff changeset
355 return manifestdict() # don't upset local cache
18604
a1141f04e368 manifest: use a size 3 LRU cache to store parsed manifests
Siddharth Agarwal <sid0@fb.com>
parents: 17983
diff changeset
356 if node in self._mancache:
a1141f04e368 manifest: use a size 3 LRU cache to store parsed manifests
Siddharth Agarwal <sid0@fb.com>
parents: 17983
diff changeset
357 return self._mancache[node][0]
0
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
358 text = self.revision(node)
9414
65dc516363ee manifest: simplify cache handling, use a unique cache
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 9413
diff changeset
359 arraytext = array.array('c', text)
24224
d71837d06597 manifest: do parsing inside manifestdict contstructor
Augie Fackler <augie@google.com>
parents: 24223
diff changeset
360 m = manifestdict(text)
24147
ba4fcd80079d manifest: rename 'mf', 'map', and 'mapping' to 'm'
Martin von Zweigbergk <martinvonz@google.com>
parents: 24146
diff changeset
361 self._mancache[node] = (m, arraytext)
ba4fcd80079d manifest: rename 'mf', 'map', and 'mapping' to 'm'
Martin von Zweigbergk <martinvonz@google.com>
parents: 24146
diff changeset
362 return m
0
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
363
2320
dbdce3b99988 fix parsing of tags. make parse errors useful. add new tag tests.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2142
diff changeset
364 def find(self, node, f):
dbdce3b99988 fix parsing of tags. make parse errors useful. add new tag tests.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2142
diff changeset
365 '''look up entry for a single file efficiently.
4159
a896607d3ec3 fix manifest.find
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 3891
diff changeset
366 return (node, flags) pair if found, (None, None) if not.'''
24292
b7add2ebef9e manifest: rewrite find(node, f) in terms of read(node)
Martin von Zweigbergk <martinvonz@google.com>
parents: 24277
diff changeset
367 m = self.read(node)
24225
3e5c4af69808 manifest: split manifestdict into high-level and low-level logic
Augie Fackler <augie@google.com>
parents: 24224
diff changeset
368 try:
24292
b7add2ebef9e manifest: rewrite find(node, f) in terms of read(node)
Martin von Zweigbergk <martinvonz@google.com>
parents: 24277
diff changeset
369 return m.find(f)
24225
3e5c4af69808 manifest: split manifestdict into high-level and low-level logic
Augie Fackler <augie@google.com>
parents: 24224
diff changeset
370 except KeyError:
2320
dbdce3b99988 fix parsing of tags. make parse errors useful. add new tag tests.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2142
diff changeset
371 return None, None
dbdce3b99988 fix parsing of tags. make parse errors useful. add new tag tests.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2142
diff changeset
372
24147
ba4fcd80079d manifest: rename 'mf', 'map', and 'mapping' to 'm'
Martin von Zweigbergk <martinvonz@google.com>
parents: 24146
diff changeset
373 def add(self, m, transaction, link, p1, p2, added, removed):
22788
160efd225b24 manifest: rearrange add() method and add comments for clarity
Augie Fackler <raf@durin42.com>
parents: 22787
diff changeset
374 if p1 in self._mancache:
160efd225b24 manifest: rearrange add() method and add comments for clarity
Augie Fackler <raf@durin42.com>
parents: 22787
diff changeset
375 # If our first parent is in the manifest cache, we can
160efd225b24 manifest: rearrange add() method and add comments for clarity
Augie Fackler <raf@durin42.com>
parents: 22787
diff changeset
376 # compute a delta here using properties we know about the
160efd225b24 manifest: rearrange add() method and add comments for clarity
Augie Fackler <raf@durin42.com>
parents: 22787
diff changeset
377 # manifest up-front, which may save time later for the
160efd225b24 manifest: rearrange add() method and add comments for clarity
Augie Fackler <raf@durin42.com>
parents: 22787
diff changeset
378 # revlog layer.
644
6ebe118280bd Performance enhancements for manifest.add()
mason@suse.com
parents: 639
diff changeset
379
22415
65ec6c5c0fb3 manifest: mark addlistdelta and checkforbidden as module-private
Augie Fackler <raf@durin42.com>
parents: 22409
diff changeset
380 _checkforbidden(added)
644
6ebe118280bd Performance enhancements for manifest.add()
mason@suse.com
parents: 639
diff changeset
381 # combine the changed lists into one list for sorting
9415
e0cc9fa2a576 manifest.add(): cleanup worklist construction and iteration
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 9414
diff changeset
382 work = [(x, False) for x in added]
e0cc9fa2a576 manifest.add(): cleanup worklist construction and iteration
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 9414
diff changeset
383 work.extend((x, True) for x in removed)
17428
72803c8edaa4 avoid using abbreviations that look like spelling errors
Mads Kiilerich <mads@kiilerich.com>
parents: 17426
diff changeset
384 # this could use heapq.merge() (from Python 2.6+) or equivalent
9415
e0cc9fa2a576 manifest.add(): cleanup worklist construction and iteration
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 9414
diff changeset
385 # since the lists are already sorted
644
6ebe118280bd Performance enhancements for manifest.add()
mason@suse.com
parents: 639
diff changeset
386 work.sort()
6ebe118280bd Performance enhancements for manifest.add()
mason@suse.com
parents: 639
diff changeset
387
24147
ba4fcd80079d manifest: rename 'mf', 'map', and 'mapping' to 'm'
Martin von Zweigbergk <martinvonz@google.com>
parents: 24146
diff changeset
388 arraytext, deltatext = m.fastdelta(self._mancache[p1][1], work)
22931
48c0b101a9de manifest: add fastdelta method to manifestdict
Augie Fackler <raf@durin42.com>
parents: 22930
diff changeset
389 cachedelta = self.rev(p1), deltatext
15657
d976b1ef6760 util: don't mess with builtins to emulate buffer()
Matt Mackall <mpm@selenic.com>
parents: 14632
diff changeset
390 text = util.buffer(arraytext)
22788
160efd225b24 manifest: rearrange add() method and add comments for clarity
Augie Fackler <raf@durin42.com>
parents: 22787
diff changeset
391 else:
160efd225b24 manifest: rearrange add() method and add comments for clarity
Augie Fackler <raf@durin42.com>
parents: 22787
diff changeset
392 # The first parent manifest isn't already loaded, so we'll
160efd225b24 manifest: rearrange add() method and add comments for clarity
Augie Fackler <raf@durin42.com>
parents: 22787
diff changeset
393 # just encode a fulltext of the manifest and pass that
160efd225b24 manifest: rearrange add() method and add comments for clarity
Augie Fackler <raf@durin42.com>
parents: 22787
diff changeset
394 # through to the revlog layer, and let it handle the delta
160efd225b24 manifest: rearrange add() method and add comments for clarity
Augie Fackler <raf@durin42.com>
parents: 22787
diff changeset
395 # process.
24147
ba4fcd80079d manifest: rename 'mf', 'map', and 'mapping' to 'm'
Martin von Zweigbergk <martinvonz@google.com>
parents: 24146
diff changeset
396 text = m.text()
22788
160efd225b24 manifest: rearrange add() method and add comments for clarity
Augie Fackler <raf@durin42.com>
parents: 22787
diff changeset
397 arraytext = array.array('c', text)
160efd225b24 manifest: rearrange add() method and add comments for clarity
Augie Fackler <raf@durin42.com>
parents: 22787
diff changeset
398 cachedelta = None
1534
80a3d6a0af71 Optimize manifest.add
mason@suse.com
parents: 1451
diff changeset
399
9420
d0db168136dc manifest/revlog: do not let the revlog cache mutable objects
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 9416
diff changeset
400 n = self.addrevision(text, transaction, link, p1, p2, cachedelta)
24147
ba4fcd80079d manifest: rename 'mf', 'map', and 'mapping' to 'm'
Martin von Zweigbergk <martinvonz@google.com>
parents: 24146
diff changeset
401 self._mancache[n] = (m, arraytext)
0
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
402
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
403 return n