annotate mercurial/dagop.py @ 43679:7cf332318f62

encoding: make getcols() raise exception explicitly This helps pytype. File "mercurial/encoding.py", line 329, in getcols: bad option in return type [bad-return-type] Expected: bytes Actually returned: None
author Yuya Nishihara <yuya@tcha.org>
date Sat, 16 Nov 2019 15:43:21 +0900
parents 687b865b95ad
children 7cd5c0968139
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rev   line source
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1 # dagop.py - graph ancestry and topology algorithm for revset
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2 #
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3 # Copyright 2010 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 __future__ import absolute_import
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9
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10 import heapq
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11
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12 from .node import nullrev
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13 from .thirdparty import attr
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14 from . import (
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15 error,
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16 mdiff,
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17 node,
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18 patch,
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19 pycompat,
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20 smartset,
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21 )
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22
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23 baseset = smartset.baseset
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24 generatorset = smartset.generatorset
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25
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26 # possible maximum depth between null and wdir()
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27 maxlogdepth = 0x80000000
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28
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29
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30 def _walkrevtree(pfunc, revs, startdepth, stopdepth, reverse):
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31 """Walk DAG using 'pfunc' from the given 'revs' nodes
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32
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33 'pfunc(rev)' should return the parent/child revisions of the given 'rev'
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34 if 'reverse' is True/False respectively.
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35
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36 Scan ends at the stopdepth (exlusive) if specified. Revisions found
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37 earlier than the startdepth are omitted.
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38 """
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39 if startdepth is None:
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40 startdepth = 0
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41 if stopdepth is None:
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42 stopdepth = maxlogdepth
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43 if stopdepth == 0:
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44 return
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45 if stopdepth < 0:
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46 raise error.ProgrammingError(b'negative stopdepth')
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47 if reverse:
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48 heapsign = -1 # max heap
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49 else:
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50 heapsign = +1 # min heap
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51
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52 # load input revs lazily to heap so earlier revisions can be yielded
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53 # without fully computing the input revs
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54 revs.sort(reverse)
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55 irevs = iter(revs)
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56 pendingheap = [] # [(heapsign * rev, depth), ...] (i.e. lower depth first)
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57
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58 inputrev = next(irevs, None)
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59 if inputrev is not None:
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60 heapq.heappush(pendingheap, (heapsign * inputrev, 0))
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61
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62 lastrev = None
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63 while pendingheap:
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64 currev, curdepth = heapq.heappop(pendingheap)
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65 currev = heapsign * currev
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66 if currev == inputrev:
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67 inputrev = next(irevs, None)
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68 if inputrev is not None:
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69 heapq.heappush(pendingheap, (heapsign * inputrev, 0))
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70 # rescan parents until curdepth >= startdepth because queued entries
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71 # of the same revision are iterated from the lowest depth
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72 foundnew = currev != lastrev
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73 if foundnew and curdepth >= startdepth:
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74 lastrev = currev
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75 yield currev
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76 pdepth = curdepth + 1
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77 if foundnew and pdepth < stopdepth:
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78 for prev in pfunc(currev):
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79 if prev != node.nullrev:
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80 heapq.heappush(pendingheap, (heapsign * prev, pdepth))
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81
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82
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83 def filectxancestors(fctxs, followfirst=False):
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84 """Like filectx.ancestors(), but can walk from multiple files/revisions,
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85 and includes the given fctxs themselves
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86
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87 Yields (rev, {fctx, ...}) pairs in descending order.
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88 """
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89 visit = {}
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90 visitheap = []
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91
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92 def addvisit(fctx):
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93 rev = fctx.rev()
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94 if rev not in visit:
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95 visit[rev] = set()
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96 heapq.heappush(visitheap, -rev) # max heap
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97 visit[rev].add(fctx)
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98
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99 if followfirst:
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100 cut = 1
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101 else:
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102 cut = None
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103
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104 for c in fctxs:
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105 addvisit(c)
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106 while visit:
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107 currev = -(heapq.heappop(visitheap))
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108 curfctxs = visit.pop(currev)
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109 yield currev, curfctxs
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110 for c in curfctxs:
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111 for parent in c.parents()[:cut]:
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112 addvisit(parent)
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113 assert not visitheap
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114
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115
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116 def filerevancestors(fctxs, followfirst=False):
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117 """Like filectx.ancestors(), but can walk from multiple files/revisions,
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118 and includes the given fctxs themselves
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119
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120 Returns a smartset.
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121 """
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122 gen = (rev for rev, _cs in filectxancestors(fctxs, followfirst))
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123 return generatorset(gen, iterasc=False)
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124
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125
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126 def _genrevancestors(repo, revs, followfirst, startdepth, stopdepth, cutfunc):
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127 if followfirst:
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128 cut = 1
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129 else:
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130 cut = None
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diff changeset
131 cl = repo.changelog
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132
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133 def plainpfunc(rev):
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diff changeset
134 try:
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diff changeset
135 return cl.parentrevs(rev)[:cut]
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parents: 33077
diff changeset
136 except error.WdirUnsupported:
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diff changeset
137 return (pctx.rev() for pctx in repo[rev].parents()[:cut])
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diff changeset
138
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diff changeset
139 if cutfunc is None:
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diff changeset
140 pfunc = plainpfunc
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parents: 33284
diff changeset
141 else:
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diff changeset
142 pfunc = lambda rev: [r for r in plainpfunc(rev) if not cutfunc(r)]
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diff changeset
143 revs = revs.filter(lambda rev: not cutfunc(rev))
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diff changeset
144 return _walkrevtree(pfunc, revs, startdepth, stopdepth, reverse=True)
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diff changeset
145
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146
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diff changeset
147 def revancestors(
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148 repo, revs, followfirst=False, startdepth=None, stopdepth=None, cutfunc=None
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149 ):
41533
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150 r"""Like revlog.ancestors(), but supports additional options, includes
33002
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Yuya Nishihara <yuya@tcha.org>
parents: 33001
diff changeset
151 the given revs themselves, and returns a smartset
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diff changeset
152
33003
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parents: 33002
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153 Scan ends at the stopdepth (exlusive) if specified. Revisions found
f63d111258da revset: add startdepth limit to ancestors() as internal option
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parents: 33002
diff changeset
154 earlier than the startdepth are omitted.
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155
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156 If cutfunc is provided, it will be used to cut the traversal of the DAG.
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Jun Wu <quark@fb.com>
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diff changeset
157 When cutfunc(X) returns True, the DAG traversal stops - revision X and
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Jun Wu <quark@fb.com>
parents: 33284
diff changeset
158 X's ancestors in the traversal path will be skipped. This could be an
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Jun Wu <quark@fb.com>
parents: 33284
diff changeset
159 optimization sometimes.
c6c8a52e28c9 revset: optimize "draft() & ::x" pattern
Jun Wu <quark@fb.com>
parents: 33284
diff changeset
160
c6c8a52e28c9 revset: optimize "draft() & ::x" pattern
Jun Wu <quark@fb.com>
parents: 33284
diff changeset
161 Note: if Y is an ancestor of X, cutfunc(X) returning True does not
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Jun Wu <quark@fb.com>
parents: 33284
diff changeset
162 necessarily mean Y will also be cut. Usually cutfunc(Y) also wants to
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Jun Wu <quark@fb.com>
parents: 33284
diff changeset
163 return True in this case. For example,
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Jun Wu <quark@fb.com>
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diff changeset
164
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Jun Wu <quark@fb.com>
parents: 33284
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165 D # revancestors(repo, D, cutfunc=lambda rev: rev == B)
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parents: 33284
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166 |\ # will include "A", because the path D -> C -> A was not cut.
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parents: 33284
diff changeset
167 B C # If "B" gets cut, "A" might want to be cut too.
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168 |/
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169 A
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170 """
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171 gen = _genrevancestors(
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172 repo, revs, followfirst, startdepth, stopdepth, cutfunc
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173 )
32997
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174 return generatorset(gen, iterasc=False)
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Patrick Mezard <patrick@mezard.eu>
parents: 16402
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175
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176
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177 def _genrevdescendants(repo, revs, followfirst):
24306
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Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 24219
diff changeset
178 if followfirst:
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Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 24219
diff changeset
179 cut = 1
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Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 24219
diff changeset
180 else:
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Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 24219
diff changeset
181 cut = None
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Patrick Mezard <patrick@mezard.eu>
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diff changeset
182
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183 cl = repo.changelog
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parents: 33075
diff changeset
184 first = revs.min()
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185 nullrev = node.nullrev
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diff changeset
186 if first == nullrev:
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diff changeset
187 # Are there nodes with a null first parent and a non-null
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parents: 33027
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188 # second one? Maybe. Do we care? Probably not.
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189 yield first
33073
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Yuya Nishihara <yuya@tcha.org>
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diff changeset
190 for i in cl:
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Yuya Nishihara <yuya@tcha.org>
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191 yield i
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192 else:
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193 seen = set(revs)
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194 for i in cl.revs(first):
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diff changeset
195 if i in seen:
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196 yield i
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197 continue
33073
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198 for x in cl.parentrevs(i)[:cut]:
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diff changeset
199 if x != nullrev and x in seen:
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diff changeset
200 seen.add(i)
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201 yield i
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diff changeset
202 break
20692
7af341082b76 revset: changed descendants revset to use lazy generators
Lucas Moscovicz <lmoscovicz@fb.com>
parents: 20691
diff changeset
203
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204
33080
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205 def _builddescendantsmap(repo, startrev, followfirst):
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206 """Build map of 'rev -> child revs', offset from startrev"""
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diff changeset
207 cl = repo.changelog
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diff changeset
208 nullrev = node.nullrev
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e7aa113b14f7 global: use pycompat.xrange()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37066
diff changeset
209 descmap = [[] for _rev in pycompat.xrange(startrev, len(cl))]
33080
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diff changeset
210 for currev in cl.revs(startrev + 1):
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diff changeset
211 p1rev, p2rev = cl.parentrevs(currev)
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diff changeset
212 if p1rev >= startrev:
a53bfc2845f2 revset: add depth limit to descendants() (issue5374)
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diff changeset
213 descmap[p1rev - startrev].append(currev)
a53bfc2845f2 revset: add depth limit to descendants() (issue5374)
Yuya Nishihara <yuya@tcha.org>
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diff changeset
214 if not followfirst and p2rev != nullrev and p2rev >= startrev:
a53bfc2845f2 revset: add depth limit to descendants() (issue5374)
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diff changeset
215 descmap[p2rev - startrev].append(currev)
a53bfc2845f2 revset: add depth limit to descendants() (issue5374)
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diff changeset
216 return descmap
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diff changeset
217
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218
33080
a53bfc2845f2 revset: add depth limit to descendants() (issue5374)
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diff changeset
219 def _genrevdescendantsofdepth(repo, revs, followfirst, startdepth, stopdepth):
a53bfc2845f2 revset: add depth limit to descendants() (issue5374)
Yuya Nishihara <yuya@tcha.org>
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diff changeset
220 startrev = revs.min()
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diff changeset
221 descmap = _builddescendantsmap(repo, startrev, followfirst)
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diff changeset
222
33080
a53bfc2845f2 revset: add depth limit to descendants() (issue5374)
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diff changeset
223 def pfunc(rev):
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diff changeset
224 return descmap[rev - startrev]
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diff changeset
225
33080
a53bfc2845f2 revset: add depth limit to descendants() (issue5374)
Yuya Nishihara <yuya@tcha.org>
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diff changeset
226 return _walkrevtree(pfunc, revs, startdepth, stopdepth, reverse=False)
a53bfc2845f2 revset: add depth limit to descendants() (issue5374)
Yuya Nishihara <yuya@tcha.org>
parents: 33079
diff changeset
227
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diff changeset
228
33080
a53bfc2845f2 revset: add depth limit to descendants() (issue5374)
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diff changeset
229 def revdescendants(repo, revs, followfirst, startdepth=None, stopdepth=None):
33075
d83b189aef83 dagop: change revdescendants() to include all root revisions
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diff changeset
230 """Like revlog.descendants() but supports additional options, includes
33080
a53bfc2845f2 revset: add depth limit to descendants() (issue5374)
Yuya Nishihara <yuya@tcha.org>
parents: 33079
diff changeset
231 the given revs themselves, and returns a smartset
a53bfc2845f2 revset: add depth limit to descendants() (issue5374)
Yuya Nishihara <yuya@tcha.org>
parents: 33079
diff changeset
232
a53bfc2845f2 revset: add depth limit to descendants() (issue5374)
Yuya Nishihara <yuya@tcha.org>
parents: 33079
diff changeset
233 Scan ends at the stopdepth (exlusive) if specified. Revisions found
a53bfc2845f2 revset: add depth limit to descendants() (issue5374)
Yuya Nishihara <yuya@tcha.org>
parents: 33079
diff changeset
234 earlier than the startdepth are omitted.
a53bfc2845f2 revset: add depth limit to descendants() (issue5374)
Yuya Nishihara <yuya@tcha.org>
parents: 33079
diff changeset
235 """
41389
7e55ca658e4b dagop: check if stopdepth is greater than or equal to maxlogdepth
Anton Shestakov <av6@dwimlabs.net>
parents: 41359
diff changeset
236 if startdepth is None and (stopdepth is None or stopdepth >= maxlogdepth):
33080
a53bfc2845f2 revset: add depth limit to descendants() (issue5374)
Yuya Nishihara <yuya@tcha.org>
parents: 33079
diff changeset
237 gen = _genrevdescendants(repo, revs, followfirst)
a53bfc2845f2 revset: add depth limit to descendants() (issue5374)
Yuya Nishihara <yuya@tcha.org>
parents: 33079
diff changeset
238 else:
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diff changeset
239 gen = _genrevdescendantsofdepth(
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Augie Fackler <augie@google.com>
parents: 42446
diff changeset
240 repo, revs, followfirst, startdepth, stopdepth
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Augie Fackler <augie@google.com>
parents: 42446
diff changeset
241 )
33073
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Yuya Nishihara <yuya@tcha.org>
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diff changeset
242 return generatorset(gen, iterasc=True)
16409
2cbd7dd0cc1f graphlog: fix --follow-first --rev combinations
Patrick Mezard <patrick@mezard.eu>
parents: 16402
diff changeset
243
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diff changeset
244
39999
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Gregory Szorc <gregory.szorc@gmail.com>
parents: 39607
diff changeset
245 def descendantrevs(revs, revsfn, parentrevsfn):
0b24fcd88066 dagop: extract descendants() from revlog module
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39607
diff changeset
246 """Generate revision number descendants in revision order.
0b24fcd88066 dagop: extract descendants() from revlog module
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39607
diff changeset
247
0b24fcd88066 dagop: extract descendants() from revlog module
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39607
diff changeset
248 Yields revision numbers starting with a child of some rev in
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Gregory Szorc <gregory.szorc@gmail.com>
parents: 39607
diff changeset
249 ``revs``. Results are ordered by revision number and are
0b24fcd88066 dagop: extract descendants() from revlog module
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39607
diff changeset
250 therefore topological. Each revision is not considered a descendant
0b24fcd88066 dagop: extract descendants() from revlog module
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39607
diff changeset
251 of itself.
0b24fcd88066 dagop: extract descendants() from revlog module
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39607
diff changeset
252
0b24fcd88066 dagop: extract descendants() from revlog module
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39607
diff changeset
253 ``revsfn`` is a callable that with no argument iterates over all
0b24fcd88066 dagop: extract descendants() from revlog module
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39607
diff changeset
254 revision numbers and with a ``start`` argument iterates over revision
0b24fcd88066 dagop: extract descendants() from revlog module
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39607
diff changeset
255 numbers beginning with that value.
0b24fcd88066 dagop: extract descendants() from revlog module
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39607
diff changeset
256
0b24fcd88066 dagop: extract descendants() from revlog module
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39607
diff changeset
257 ``parentrevsfn`` is a callable that receives a revision number and
0b24fcd88066 dagop: extract descendants() from revlog module
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39607
diff changeset
258 returns an iterable of parent revision numbers, whose values may include
0b24fcd88066 dagop: extract descendants() from revlog module
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39607
diff changeset
259 nullrev.
0b24fcd88066 dagop: extract descendants() from revlog module
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39607
diff changeset
260 """
0b24fcd88066 dagop: extract descendants() from revlog module
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39607
diff changeset
261 first = min(revs)
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Gregory Szorc <gregory.szorc@gmail.com>
parents: 39607
diff changeset
262
0b24fcd88066 dagop: extract descendants() from revlog module
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39607
diff changeset
263 if first == nullrev:
0b24fcd88066 dagop: extract descendants() from revlog module
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39607
diff changeset
264 for rev in revsfn():
0b24fcd88066 dagop: extract descendants() from revlog module
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39607
diff changeset
265 yield rev
0b24fcd88066 dagop: extract descendants() from revlog module
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39607
diff changeset
266 return
0b24fcd88066 dagop: extract descendants() from revlog module
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39607
diff changeset
267
0b24fcd88066 dagop: extract descendants() from revlog module
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39607
diff changeset
268 seen = set(revs)
0b24fcd88066 dagop: extract descendants() from revlog module
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39607
diff changeset
269 for rev in revsfn(start=first + 1):
0b24fcd88066 dagop: extract descendants() from revlog module
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39607
diff changeset
270 for prev in parentrevsfn(rev):
0b24fcd88066 dagop: extract descendants() from revlog module
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39607
diff changeset
271 if prev != nullrev and prev in seen:
0b24fcd88066 dagop: extract descendants() from revlog module
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39607
diff changeset
272 seen.add(rev)
0b24fcd88066 dagop: extract descendants() from revlog module
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39607
diff changeset
273 yield rev
0b24fcd88066 dagop: extract descendants() from revlog module
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39607
diff changeset
274 break
0b24fcd88066 dagop: extract descendants() from revlog module
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39607
diff changeset
275
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42446
diff changeset
276
42446
055c3e2c44f0 revlog: speed up isancestor
Valentin Gatien-Baron <vgatien-baron@janestreet.com>
parents: 42445
diff changeset
277 def _reachablerootspure(pfunc, minroot, roots, heads, includepath):
055c3e2c44f0 revlog: speed up isancestor
Valentin Gatien-Baron <vgatien-baron@janestreet.com>
parents: 42445
diff changeset
278 """See revlog.reachableroots"""
16862
b6efeb27e733 revset: introduce and use _revsbetween
Bryan O'Sullivan <bryano@fb.com>
parents: 16861
diff changeset
279 if not roots:
26094
df41c7be16d6 reachableroots: construct and sort baseset in revset module
Yuya Nishihara <yuya@tcha.org>
parents: 26093
diff changeset
280 return []
26053
b68c9d232db6 reachableroots: use internal "revstates" array to test if rev is a root
Yuya Nishihara <yuya@tcha.org>
parents: 26006
diff changeset
281 roots = set(roots)
22487
e40bb83d0989 revset: stop using a baseset instead of a plain list in _revsbetween
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 22483
diff changeset
282 visit = list(heads)
16862
b6efeb27e733 revset: introduce and use _revsbetween
Bryan O'Sullivan <bryano@fb.com>
parents: 16861
diff changeset
283 reachable = set()
b6efeb27e733 revset: introduce and use _revsbetween
Bryan O'Sullivan <bryano@fb.com>
parents: 16861
diff changeset
284 seen = {}
25566
15412bba5a68 revset: prefetch all attributes before loop in _revsbetween
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 25554
diff changeset
285 # prefetch all the things! (because python is slow)
15412bba5a68 revset: prefetch all attributes before loop in _revsbetween
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 25554
diff changeset
286 reached = reachable.add
15412bba5a68 revset: prefetch all attributes before loop in _revsbetween
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 25554
diff changeset
287 dovisit = visit.append
15412bba5a68 revset: prefetch all attributes before loop in _revsbetween
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 25554
diff changeset
288 nextvisit = visit.pop
16862
b6efeb27e733 revset: introduce and use _revsbetween
Bryan O'Sullivan <bryano@fb.com>
parents: 16861
diff changeset
289 # open-code the post-order traversal due to the tiny size of
b6efeb27e733 revset: introduce and use _revsbetween
Bryan O'Sullivan <bryano@fb.com>
parents: 16861
diff changeset
290 # sys.getrecursionlimit()
b6efeb27e733 revset: introduce and use _revsbetween
Bryan O'Sullivan <bryano@fb.com>
parents: 16861
diff changeset
291 while visit:
25566
15412bba5a68 revset: prefetch all attributes before loop in _revsbetween
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 25554
diff changeset
292 rev = nextvisit()
16862
b6efeb27e733 revset: introduce and use _revsbetween
Bryan O'Sullivan <bryano@fb.com>
parents: 16861
diff changeset
293 if rev in roots:
25566
15412bba5a68 revset: prefetch all attributes before loop in _revsbetween
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 25554
diff changeset
294 reached(rev)
26002
fd92bfbbe02d revset: rename revsbetween to reachableroots and add an argument
Laurent Charignon <lcharignon@fb.com>
parents: 26001
diff changeset
295 if not includepath:
fd92bfbbe02d revset: rename revsbetween to reachableroots and add an argument
Laurent Charignon <lcharignon@fb.com>
parents: 26001
diff changeset
296 continue
42446
055c3e2c44f0 revlog: speed up isancestor
Valentin Gatien-Baron <vgatien-baron@janestreet.com>
parents: 42445
diff changeset
297 parents = pfunc(rev)
16862
b6efeb27e733 revset: introduce and use _revsbetween
Bryan O'Sullivan <bryano@fb.com>
parents: 16861
diff changeset
298 seen[rev] = parents
b6efeb27e733 revset: introduce and use _revsbetween
Bryan O'Sullivan <bryano@fb.com>
parents: 16861
diff changeset
299 for parent in parents:
b6efeb27e733 revset: introduce and use _revsbetween
Bryan O'Sullivan <bryano@fb.com>
parents: 16861
diff changeset
300 if parent >= minroot and parent not in seen:
25566
15412bba5a68 revset: prefetch all attributes before loop in _revsbetween
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 25554
diff changeset
301 dovisit(parent)
16862
b6efeb27e733 revset: introduce and use _revsbetween
Bryan O'Sullivan <bryano@fb.com>
parents: 16861
diff changeset
302 if not reachable:
22802
1fcd361efaf4 baseset: use default value instead of [] when possible
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 22801
diff changeset
303 return baseset()
26002
fd92bfbbe02d revset: rename revsbetween to reachableroots and add an argument
Laurent Charignon <lcharignon@fb.com>
parents: 26001
diff changeset
304 if not includepath:
fd92bfbbe02d revset: rename revsbetween to reachableroots and add an argument
Laurent Charignon <lcharignon@fb.com>
parents: 26001
diff changeset
305 return reachable
16862
b6efeb27e733 revset: introduce and use _revsbetween
Bryan O'Sullivan <bryano@fb.com>
parents: 16861
diff changeset
306 for rev in sorted(seen):
b6efeb27e733 revset: introduce and use _revsbetween
Bryan O'Sullivan <bryano@fb.com>
parents: 16861
diff changeset
307 for parent in seen[rev]:
b6efeb27e733 revset: introduce and use _revsbetween
Bryan O'Sullivan <bryano@fb.com>
parents: 16861
diff changeset
308 if parent in reachable:
25566
15412bba5a68 revset: prefetch all attributes before loop in _revsbetween
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 25554
diff changeset
309 reached(rev)
26091
60bbd4f9abd1 reachableroots: sort the smartset in the pure version too
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 26060
diff changeset
310 return reachable
16862
b6efeb27e733 revset: introduce and use _revsbetween
Bryan O'Sullivan <bryano@fb.com>
parents: 16861
diff changeset
311
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42446
diff changeset
312
26006
1ffd97cbf9a2 reachableroots: default to the C implementation
Laurent Charignon <lcharignon@fb.com>
parents: 26002
diff changeset
313 def reachableroots(repo, roots, heads, includepath=False):
42446
055c3e2c44f0 revlog: speed up isancestor
Valentin Gatien-Baron <vgatien-baron@janestreet.com>
parents: 42445
diff changeset
314 """See revlog.reachableroots"""
26006
1ffd97cbf9a2 reachableroots: default to the C implementation
Laurent Charignon <lcharignon@fb.com>
parents: 26002
diff changeset
315 if not roots:
1ffd97cbf9a2 reachableroots: default to the C implementation
Laurent Charignon <lcharignon@fb.com>
parents: 26002
diff changeset
316 return baseset()
26093
204131131766 reachableroots: use smartset min
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 26091
diff changeset
317 minroot = roots.min()
26053
b68c9d232db6 reachableroots: use internal "revstates" array to test if rev is a root
Yuya Nishihara <yuya@tcha.org>
parents: 26006
diff changeset
318 roots = list(roots)
26006
1ffd97cbf9a2 reachableroots: default to the C implementation
Laurent Charignon <lcharignon@fb.com>
parents: 26002
diff changeset
319 heads = list(heads)
42446
055c3e2c44f0 revlog: speed up isancestor
Valentin Gatien-Baron <vgatien-baron@janestreet.com>
parents: 42445
diff changeset
320 revs = repo.changelog.reachableroots(minroot, heads, roots, includepath)
26094
df41c7be16d6 reachableroots: construct and sort baseset in revset module
Yuya Nishihara <yuya@tcha.org>
parents: 26093
diff changeset
321 revs = baseset(revs)
df41c7be16d6 reachableroots: construct and sort baseset in revset module
Yuya Nishihara <yuya@tcha.org>
parents: 26093
diff changeset
322 revs.sort()
df41c7be16d6 reachableroots: construct and sort baseset in revset module
Yuya Nishihara <yuya@tcha.org>
parents: 26093
diff changeset
323 return revs
26006
1ffd97cbf9a2 reachableroots: default to the C implementation
Laurent Charignon <lcharignon@fb.com>
parents: 26002
diff changeset
324
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42446
diff changeset
325
32904
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
326 def _changesrange(fctx1, fctx2, linerange2, diffopts):
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
327 """Return `(diffinrange, linerange1)` where `diffinrange` is True
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
328 if diff from fctx2 to fctx1 has changes in linerange2 and
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
329 `linerange1` is the new line range for fctx1.
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
330 """
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
331 blocks = mdiff.allblocks(fctx1.data(), fctx2.data(), diffopts)
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
332 filteredblocks, linerange1 = mdiff.blocksinrange(blocks, linerange2)
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
333 diffinrange = any(stype == b'!' for _, stype in filteredblocks)
32904
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
334 return diffinrange, linerange1
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
335
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42446
diff changeset
336
32904
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
337 def blockancestors(fctx, fromline, toline, followfirst=False):
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
338 """Yield ancestors of `fctx` with respect to the block of lines within
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
339 `fromline`-`toline` range.
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
340 """
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
341 diffopts = patch.diffopts(fctx._repo.ui)
35271
d90c534099b1 filectx: extract helper method to obtain filectx pointing to its introrev
Yuya Nishihara <yuya@tcha.org>
parents: 35270
diff changeset
342 fctx = fctx.introfilectx()
32904
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
343 visit = {(fctx.linkrev(), fctx.filenode()): (fctx, (fromline, toline))}
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
344 while visit:
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
345 c, linerange2 = visit.pop(max(visit))
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
346 pl = c.parents()
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
347 if followfirst:
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
348 pl = pl[:1]
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
349 if not pl:
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
350 # The block originates from the initial revision.
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
351 yield c, linerange2
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
352 continue
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
353 inrange = False
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
354 for p in pl:
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
355 inrangep, linerange1 = _changesrange(p, c, linerange2, diffopts)
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
356 inrange = inrange or inrangep
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
357 if linerange1[0] == linerange1[1]:
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
358 # Parent's linerange is empty, meaning that the block got
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
359 # introduced in this revision; no need to go futher in this
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
360 # branch.
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
361 continue
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
362 # Set _descendantrev with 'c' (a known descendant) so that, when
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
363 # _adjustlinkrev is called for 'p', it receives this descendant
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
364 # (as srcrev) instead possibly topmost introrev.
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
365 p._descendantrev = c.rev()
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
366 visit[p.linkrev(), p.filenode()] = p, linerange1
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
367 if inrange:
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
368 yield c, linerange2
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
369
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42446
diff changeset
370
32904
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
371 def blockdescendants(fctx, fromline, toline):
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
372 """Yield descendants of `fctx` with respect to the block of lines within
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
373 `fromline`-`toline` range.
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
374 """
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
375 # First possibly yield 'fctx' if it has changes in range with respect to
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
376 # its parents.
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
377 try:
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
378 c, linerange1 = next(blockancestors(fctx, fromline, toline))
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
379 except StopIteration:
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
380 pass
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
381 else:
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
382 if c == fctx:
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
383 yield c, linerange1
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
384
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
385 diffopts = patch.diffopts(fctx._repo.ui)
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
386 fl = fctx.filelog()
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
387 seen = {fctx.filerev(): (fctx, (fromline, toline))}
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
388 for i in fl.descendants([fctx.filerev()]):
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
389 c = fctx.filectx(i)
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
390 inrange = False
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
391 for x in fl.parentrevs(i):
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
392 try:
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
393 p, linerange2 = seen[x]
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
394 except KeyError:
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
395 # nullrev or other branch
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
396 continue
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
397 inrangep, linerange1 = _changesrange(c, p, linerange2, diffopts)
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
398 inrange = inrange or inrangep
33284
b2670290eab4 followlines: join merge parents line ranges in blockdescendants() (issue5595)
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 33080
diff changeset
399 # If revision 'i' has been seen (it's a merge) and the line range
b2670290eab4 followlines: join merge parents line ranges in blockdescendants() (issue5595)
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 33080
diff changeset
400 # previously computed differs from the one we just got, we take the
b2670290eab4 followlines: join merge parents line ranges in blockdescendants() (issue5595)
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 33080
diff changeset
401 # surrounding interval. This is conservative but avoids loosing
b2670290eab4 followlines: join merge parents line ranges in blockdescendants() (issue5595)
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 33080
diff changeset
402 # information.
b2670290eab4 followlines: join merge parents line ranges in blockdescendants() (issue5595)
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 33080
diff changeset
403 if i in seen and seen[i][1] != linerange1:
b2670290eab4 followlines: join merge parents line ranges in blockdescendants() (issue5595)
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 33080
diff changeset
404 lbs, ubs = zip(linerange1, seen[i][1])
b2670290eab4 followlines: join merge parents line ranges in blockdescendants() (issue5595)
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 33080
diff changeset
405 linerange1 = min(lbs), max(ubs)
32904
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
406 seen[i] = c, linerange1
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
407 if inrange:
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
408 yield c, linerange1
582080a4a812 dagop: move blockancestors() and blockdescendants() from context
Yuya Nishihara <yuya@tcha.org>
parents: 32903
diff changeset
409
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42446
diff changeset
410
36917
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
411 @attr.s(slots=True, frozen=True)
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
412 class annotateline(object):
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
413 fctx = attr.ib()
37065
b235bde38a83 annotate: drop linenumber flag from fctx.annotate() (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37064
diff changeset
414 lineno = attr.ib()
36917
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
415 # Whether this annotation was the result of a skip-annotate.
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
416 skip = attr.ib(default=False)
37066
b33b91ca2ec2 annotate: pack line content into annotateline object (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37065
diff changeset
417 text = attr.ib(default=None)
36917
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
418
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42446
diff changeset
419
37064
434e520adb8c annotate: do not construct attr.s object per line while computing history
Yuya Nishihara <yuya@tcha.org>
parents: 36935
diff changeset
420 @attr.s(slots=True, frozen=True)
434e520adb8c annotate: do not construct attr.s object per line while computing history
Yuya Nishihara <yuya@tcha.org>
parents: 36935
diff changeset
421 class _annotatedfile(object):
434e520adb8c annotate: do not construct attr.s object per line while computing history
Yuya Nishihara <yuya@tcha.org>
parents: 36935
diff changeset
422 # list indexed by lineno - 1
434e520adb8c annotate: do not construct attr.s object per line while computing history
Yuya Nishihara <yuya@tcha.org>
parents: 36935
diff changeset
423 fctxs = attr.ib()
434e520adb8c annotate: do not construct attr.s object per line while computing history
Yuya Nishihara <yuya@tcha.org>
parents: 36935
diff changeset
424 linenos = attr.ib()
434e520adb8c annotate: do not construct attr.s object per line while computing history
Yuya Nishihara <yuya@tcha.org>
parents: 36935
diff changeset
425 skips = attr.ib()
434e520adb8c annotate: do not construct attr.s object per line while computing history
Yuya Nishihara <yuya@tcha.org>
parents: 36935
diff changeset
426 # full file content
434e520adb8c annotate: do not construct attr.s object per line while computing history
Yuya Nishihara <yuya@tcha.org>
parents: 36935
diff changeset
427 text = attr.ib()
434e520adb8c annotate: do not construct attr.s object per line while computing history
Yuya Nishihara <yuya@tcha.org>
parents: 36935
diff changeset
428
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42446
diff changeset
429
36919
8fba319750c2 dagop: move lines() out of annotate()
Yuya Nishihara <yuya@tcha.org>
parents: 36918
diff changeset
430 def _countlines(text):
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
431 if text.endswith(b"\n"):
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
432 return text.count(b"\n")
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
433 return text.count(b"\n") + int(bool(text))
36919
8fba319750c2 dagop: move lines() out of annotate()
Yuya Nishihara <yuya@tcha.org>
parents: 36918
diff changeset
434
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42446
diff changeset
435
37065
b235bde38a83 annotate: drop linenumber flag from fctx.annotate() (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37064
diff changeset
436 def _decoratelines(text, fctx):
b235bde38a83 annotate: drop linenumber flag from fctx.annotate() (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37064
diff changeset
437 n = _countlines(text)
b235bde38a83 annotate: drop linenumber flag from fctx.annotate() (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37064
diff changeset
438 linenos = pycompat.rangelist(1, n + 1)
b235bde38a83 annotate: drop linenumber flag from fctx.annotate() (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37064
diff changeset
439 return _annotatedfile([fctx] * n, linenos, [False] * n, text)
b235bde38a83 annotate: drop linenumber flag from fctx.annotate() (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37064
diff changeset
440
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42446
diff changeset
441
36917
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
442 def _annotatepair(parents, childfctx, child, skipchild, diffopts):
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
443 r'''
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
444 Given parent and child fctxes and annotate data for parents, for all lines
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
445 in either parent that match the child, annotate the child with the parent's
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
446 data.
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
447
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
448 Additionally, if `skipchild` is True, replace all other lines with parent
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
449 annotate data as well such that child is never blamed for any lines.
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
450
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
451 See test-annotate.py for unit tests.
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
452 '''
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42446
diff changeset
453 pblocks = [
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42446
diff changeset
454 (parent, mdiff.allblocks(parent.text, child.text, opts=diffopts))
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42446
diff changeset
455 for parent in parents
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42446
diff changeset
456 ]
36917
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
457
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
458 if skipchild:
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
459 # Need to iterate over the blocks twice -- make it a list
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
460 pblocks = [(p, list(blocks)) for (p, blocks) in pblocks]
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
461 # Mercurial currently prefers p2 over p1 for annotate.
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
462 # TODO: change this?
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
463 for parent, blocks in pblocks:
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
464 for (a1, a2, b1, b2), t in blocks:
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
465 # Changed blocks ('!') or blocks made only of blank lines ('~')
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
466 # belong to the child.
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
467 if t == b'=':
37064
434e520adb8c annotate: do not construct attr.s object per line while computing history
Yuya Nishihara <yuya@tcha.org>
parents: 36935
diff changeset
468 child.fctxs[b1:b2] = parent.fctxs[a1:a2]
434e520adb8c annotate: do not construct attr.s object per line while computing history
Yuya Nishihara <yuya@tcha.org>
parents: 36935
diff changeset
469 child.linenos[b1:b2] = parent.linenos[a1:a2]
434e520adb8c annotate: do not construct attr.s object per line while computing history
Yuya Nishihara <yuya@tcha.org>
parents: 36935
diff changeset
470 child.skips[b1:b2] = parent.skips[a1:a2]
36917
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
471
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
472 if skipchild:
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
473 # Now try and match up anything that couldn't be matched,
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
474 # Reversing pblocks maintains bias towards p2, matching above
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
475 # behavior.
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
476 pblocks.reverse()
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
477
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
478 # The heuristics are:
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
479 # * Work on blocks of changed lines (effectively diff hunks with -U0).
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
480 # This could potentially be smarter but works well enough.
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
481 # * For a non-matching section, do a best-effort fit. Match lines in
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
482 # diff hunks 1:1, dropping lines as necessary.
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
483 # * Repeat the last line as a last resort.
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
484
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
485 # First, replace as much as possible without repeating the last line.
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
486 remaining = [(parent, []) for parent, _blocks in pblocks]
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
487 for idx, (parent, blocks) in enumerate(pblocks):
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
488 for (a1, a2, b1, b2), _t in blocks:
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
489 if a2 - a1 >= b2 - b1:
38783
e7aa113b14f7 global: use pycompat.xrange()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37066
diff changeset
490 for bk in pycompat.xrange(b1, b2):
37064
434e520adb8c annotate: do not construct attr.s object per line while computing history
Yuya Nishihara <yuya@tcha.org>
parents: 36935
diff changeset
491 if child.fctxs[bk] == childfctx:
36917
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
492 ak = min(a1 + (bk - b1), a2 - 1)
37064
434e520adb8c annotate: do not construct attr.s object per line while computing history
Yuya Nishihara <yuya@tcha.org>
parents: 36935
diff changeset
493 child.fctxs[bk] = parent.fctxs[ak]
434e520adb8c annotate: do not construct attr.s object per line while computing history
Yuya Nishihara <yuya@tcha.org>
parents: 36935
diff changeset
494 child.linenos[bk] = parent.linenos[ak]
434e520adb8c annotate: do not construct attr.s object per line while computing history
Yuya Nishihara <yuya@tcha.org>
parents: 36935
diff changeset
495 child.skips[bk] = True
36917
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
496 else:
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
497 remaining[idx][1].append((a1, a2, b1, b2))
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
498
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
499 # Then, look at anything left, which might involve repeating the last
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
500 # line.
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
501 for parent, blocks in remaining:
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
502 for a1, a2, b1, b2 in blocks:
38783
e7aa113b14f7 global: use pycompat.xrange()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37066
diff changeset
503 for bk in pycompat.xrange(b1, b2):
37064
434e520adb8c annotate: do not construct attr.s object per line while computing history
Yuya Nishihara <yuya@tcha.org>
parents: 36935
diff changeset
504 if child.fctxs[bk] == childfctx:
36917
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
505 ak = min(a1 + (bk - b1), a2 - 1)
37064
434e520adb8c annotate: do not construct attr.s object per line while computing history
Yuya Nishihara <yuya@tcha.org>
parents: 36935
diff changeset
506 child.fctxs[bk] = parent.fctxs[ak]
434e520adb8c annotate: do not construct attr.s object per line while computing history
Yuya Nishihara <yuya@tcha.org>
parents: 36935
diff changeset
507 child.linenos[bk] = parent.linenos[ak]
434e520adb8c annotate: do not construct attr.s object per line while computing history
Yuya Nishihara <yuya@tcha.org>
parents: 36935
diff changeset
508 child.skips[bk] = True
36917
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
509 return child
7affcabf561e dagop: move annotateline and _annotatepair from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 35297
diff changeset
510
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42446
diff changeset
511
37065
b235bde38a83 annotate: drop linenumber flag from fctx.annotate() (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37064
diff changeset
512 def annotate(base, parents, skiprevs=None, diffopts=None):
36918
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
513 """Core algorithm for filectx.annotate()
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
514
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
515 `parents(fctx)` is a function returning a list of parent filectxs.
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
516 """
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
517
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
518 # This algorithm would prefer to be recursive, but Python is a
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
519 # bit recursion-hostile. Instead we do an iterative
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
520 # depth-first search.
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
521
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
522 # 1st DFS pre-calculates pcache and needed
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
523 visit = [base]
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
524 pcache = {}
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
525 needed = {base: 1}
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
526 while visit:
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
527 f = visit.pop()
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
528 if f in pcache:
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
529 continue
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
530 pl = parents(f)
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
531 pcache[f] = pl
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
532 for p in pl:
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
533 needed[p] = needed.get(p, 0) + 1
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
534 if p not in pcache:
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
535 visit.append(p)
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
536
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
537 # 2nd DFS does the actual annotate
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
538 visit[:] = [base]
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
539 hist = {}
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
540 while visit:
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
541 f = visit[-1]
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
542 if f in hist:
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
543 visit.pop()
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
544 continue
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
545
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
546 ready = True
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
547 pl = pcache[f]
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
548 for p in pl:
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
549 if p not in hist:
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
550 ready = False
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
551 visit.append(p)
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
552 if ready:
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
553 visit.pop()
37065
b235bde38a83 annotate: drop linenumber flag from fctx.annotate() (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37064
diff changeset
554 curr = _decoratelines(f.data(), f)
36918
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
555 skipchild = False
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
556 if skiprevs is not None:
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
557 skipchild = f._changeid in skiprevs
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42446
diff changeset
558 curr = _annotatepair(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42446
diff changeset
559 [hist[p] for p in pl], f, curr, skipchild, diffopts
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42446
diff changeset
560 )
36918
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
561 for p in pl:
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
562 if needed[p] == 1:
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
563 del hist[p]
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
564 del needed[p]
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
565 else:
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
566 needed[p] -= 1
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
567
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
568 hist[f] = curr
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
569 del pcache[f]
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
570
37064
434e520adb8c annotate: do not construct attr.s object per line while computing history
Yuya Nishihara <yuya@tcha.org>
parents: 36935
diff changeset
571 a = hist[base]
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42446
diff changeset
572 return [
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42446
diff changeset
573 annotateline(*r)
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42446
diff changeset
574 for r in zip(a.fctxs, a.linenos, a.skips, mdiff.splitnewlines(a.text))
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42446
diff changeset
575 ]
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42446
diff changeset
576
36918
5d3abd6a5b25 dagop: extract core algorithm of annotate() from context.py
Yuya Nishihara <yuya@tcha.org>
parents: 36917
diff changeset
577
32903
27932a76a88d dagop: split module hosting DAG-related algorithms from revset
Yuya Nishihara <yuya@tcha.org>
parents: 32885
diff changeset
578 def toposort(revs, parentsfunc, firstbranch=()):
29347
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
579 """Yield revisions from heads to roots one (topo) branch at a time.
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
580
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
581 This function aims to be used by a graph generator that wishes to minimize
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
582 the number of parallel branches and their interleaving.
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
583
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
584 Example iteration order (numbers show the "true" order in a changelog):
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
585
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
586 o 4
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
587 |
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
588 o 1
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
589 |
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
590 | o 3
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
591 | |
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
592 | o 2
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
593 |/
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
594 o 0
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
595
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
596 Note that the ancestors of merges are understood by the current
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
597 algorithm to be on the same branch. This means no reordering will
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
598 occur behind a merge.
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
599 """
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
600
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
601 ### Quick summary of the algorithm
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
602 #
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
603 # This function is based around a "retention" principle. We keep revisions
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
604 # in memory until we are ready to emit a whole branch that immediately
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
605 # "merges" into an existing one. This reduces the number of parallel
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
606 # branches with interleaved revisions.
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
607 #
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
608 # During iteration revs are split into two groups:
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
609 # A) revision already emitted
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
610 # B) revision in "retention". They are stored as different subgroups.
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
611 #
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
612 # for each REV, we do the following logic:
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
613 #
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
614 # 1) if REV is a parent of (A), we will emit it. If there is a
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
615 # retention group ((B) above) that is blocked on REV being
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
616 # available, we emit all the revisions out of that retention
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
617 # group first.
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
618 #
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
619 # 2) else, we'll search for a subgroup in (B) awaiting for REV to be
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
620 # available, if such subgroup exist, we add REV to it and the subgroup is
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
621 # now awaiting for REV.parents() to be available.
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
622 #
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
623 # 3) finally if no such group existed in (B), we create a new subgroup.
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
624 #
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
625 #
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
626 # To bootstrap the algorithm, we emit the tipmost revision (which
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
627 # puts it in group (A) from above).
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
628
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
629 revs.sort(reverse=True)
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
630
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
631 # Set of parents of revision that have been emitted. They can be considered
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
632 # unblocked as the graph generator is already aware of them so there is no
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
633 # need to delay the revisions that reference them.
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
634 #
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
635 # If someone wants to prioritize a branch over the others, pre-filling this
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
636 # set will force all other branches to wait until this branch is ready to be
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
637 # emitted.
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
638 unblocked = set(firstbranch)
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
639
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
640 # list of groups waiting to be displayed, each group is defined by:
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
641 #
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
642 # (revs: lists of revs waiting to be displayed,
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
643 # blocked: set of that cannot be displayed before those in 'revs')
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
644 #
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
645 # The second value ('blocked') correspond to parents of any revision in the
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
646 # group ('revs') that is not itself contained in the group. The main idea
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
647 # of this algorithm is to delay as much as possible the emission of any
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
648 # revision. This means waiting for the moment we are about to display
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
649 # these parents to display the revs in a group.
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
650 #
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
651 # This first implementation is smart until it encounters a merge: it will
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
652 # emit revs as soon as any parent is about to be emitted and can grow an
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
653 # arbitrary number of revs in 'blocked'. In practice this mean we properly
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
654 # retains new branches but gives up on any special ordering for ancestors
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
655 # of merges. The implementation can be improved to handle this better.
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
656 #
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
657 # The first subgroup is special. It corresponds to all the revision that
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
658 # were already emitted. The 'revs' lists is expected to be empty and the
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
659 # 'blocked' set contains the parents revisions of already emitted revision.
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
660 #
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
661 # You could pre-seed the <parents> set of groups[0] to a specific
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
662 # changesets to select what the first emitted branch should be.
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
663 groups = [([], unblocked)]
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
664 pendingheap = []
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
665 pendingset = set()
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
666
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
667 heapq.heapify(pendingheap)
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
668 heappop = heapq.heappop
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
669 heappush = heapq.heappush
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
670 for currentrev in revs:
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
671 # Heap works with smallest element, we want highest so we invert
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
672 if currentrev not in pendingset:
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
673 heappush(pendingheap, -currentrev)
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
674 pendingset.add(currentrev)
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
675 # iterates on pending rev until after the current rev have been
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
676 # processed.
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
677 rev = None
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
678 while rev != currentrev:
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
679 rev = -heappop(pendingheap)
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
680 pendingset.remove(rev)
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
681
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
682 # Seek for a subgroup blocked, waiting for the current revision.
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
683 matching = [i for i, g in enumerate(groups) if rev in g[1]]
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
684
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
685 if matching:
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
686 # The main idea is to gather together all sets that are blocked
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
687 # on the same revision.
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
688 #
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
689 # Groups are merged when a common blocking ancestor is
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
690 # observed. For example, given two groups:
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
691 #
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
692 # revs [5, 4] waiting for 1
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
693 # revs [3, 2] waiting for 1
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
694 #
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
695 # These two groups will be merged when we process
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
696 # 1. In theory, we could have merged the groups when
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
697 # we added 2 to the group it is now in (we could have
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
698 # noticed the groups were both blocked on 1 then), but
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
699 # the way it works now makes the algorithm simpler.
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
700 #
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
701 # We also always keep the oldest subgroup first. We can
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
702 # probably improve the behavior by having the longest set
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
703 # first. That way, graph algorithms could minimise the length
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
704 # of parallel lines their drawing. This is currently not done.
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
705 targetidx = matching.pop(0)
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
706 trevs, tparents = groups[targetidx]
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
707 for i in matching:
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
708 gr = groups[i]
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
709 trevs.extend(gr[0])
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
710 tparents |= gr[1]
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
711 # delete all merged subgroups (except the one we kept)
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
712 # (starting from the last subgroup for performance and
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
713 # sanity reasons)
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
714 for i in reversed(matching):
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
715 del groups[i]
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
716 else:
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
717 # This is a new head. We create a new subgroup for it.
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
718 targetidx = len(groups)
32291
bd872f64a8ba cleanup: use set literals
Martin von Zweigbergk <martinvonz@google.com>
parents: 32085
diff changeset
719 groups.append(([], {rev}))
29347
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
720
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
721 gr = groups[targetidx]
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
722
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
723 # We now add the current nodes to this subgroups. This is done
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
724 # after the subgroup merging because all elements from a subgroup
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
725 # that relied on this rev must precede it.
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
726 #
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
727 # we also update the <parents> set to include the parents of the
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
728 # new nodes.
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42446
diff changeset
729 if rev == currentrev: # only display stuff in rev
29347
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
730 gr[0].append(rev)
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
731 gr[1].remove(rev)
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
732 parents = [p for p in parentsfunc(rev) if p > node.nullrev]
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
733 gr[1].update(parents)
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
734 for p in parents:
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
735 if p not in pendingset:
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
736 pendingset.add(p)
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
737 heappush(pendingheap, -p)
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
738
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
739 # Look for a subgroup to display
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
740 #
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
741 # When unblocked is empty (if clause), we were not waiting for any
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
742 # revisions during the first iteration (if no priority was given) or
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
743 # if we emitted a whole disconnected set of the graph (reached a
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
744 # root). In that case we arbitrarily take the oldest known
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
745 # subgroup. The heuristic could probably be better.
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
746 #
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
747 # Otherwise (elif clause) if the subgroup is blocked on
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
748 # a revision we just emitted, we can safely emit it as
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
749 # well.
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
750 if not unblocked:
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
751 if len(groups) > 1: # display other subset
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
752 targetidx = 1
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
753 gr = groups[1]
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
754 elif not gr[1] & unblocked:
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
755 gr = None
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
756
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
757 if gr is not None:
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
758 # update the set of awaited revisions with the one from the
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
759 # subgroup
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
760 unblocked |= gr[1]
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
761 # output all revisions in the subgroup
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
762 for r in gr[0]:
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
763 yield r
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
764 # delete the subgroup that you just output
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
765 # unless it is groups[0] in which case you just empty it.
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
766 if targetidx:
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
767 del groups[targetidx]
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
768 else:
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
769 gr[0][:] = []
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
770 # Check if we have some subgroup waiting for revisions we are not going to
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
771 # iterate over
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
772 for g in groups:
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
773 for r in g[0]:
98535ad46fc0 revset: move groupbranchiter over from graphmod
Martijn Pieters <mjpieters@fb.com>
parents: 29346
diff changeset
774 yield r
39179
1c3184d7e882 dagop: extract headsetofconnecteds() from dagutil
Gregory Szorc <gregory.szorc@gmail.com>
parents: 38783
diff changeset
775
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42446
diff changeset
776
39179
1c3184d7e882 dagop: extract headsetofconnecteds() from dagutil
Gregory Szorc <gregory.szorc@gmail.com>
parents: 38783
diff changeset
777 def headrevs(revs, parentsfn):
1c3184d7e882 dagop: extract headsetofconnecteds() from dagutil
Gregory Szorc <gregory.szorc@gmail.com>
parents: 38783
diff changeset
778 """Resolve the set of heads from a set of revisions.
1c3184d7e882 dagop: extract headsetofconnecteds() from dagutil
Gregory Szorc <gregory.szorc@gmail.com>
parents: 38783
diff changeset
779
1c3184d7e882 dagop: extract headsetofconnecteds() from dagutil
Gregory Szorc <gregory.szorc@gmail.com>
parents: 38783
diff changeset
780 Receives an iterable of revision numbers and a callbable that receives a
1c3184d7e882 dagop: extract headsetofconnecteds() from dagutil
Gregory Szorc <gregory.szorc@gmail.com>
parents: 38783
diff changeset
781 revision number and returns an iterable of parent revision numbers, possibly
1c3184d7e882 dagop: extract headsetofconnecteds() from dagutil
Gregory Szorc <gregory.szorc@gmail.com>
parents: 38783
diff changeset
782 including nullrev.
1c3184d7e882 dagop: extract headsetofconnecteds() from dagutil
Gregory Szorc <gregory.szorc@gmail.com>
parents: 38783
diff changeset
783
1c3184d7e882 dagop: extract headsetofconnecteds() from dagutil
Gregory Szorc <gregory.szorc@gmail.com>
parents: 38783
diff changeset
784 Returns a set of revision numbers that are DAG heads within the passed
1c3184d7e882 dagop: extract headsetofconnecteds() from dagutil
Gregory Szorc <gregory.szorc@gmail.com>
parents: 38783
diff changeset
785 subset.
1c3184d7e882 dagop: extract headsetofconnecteds() from dagutil
Gregory Szorc <gregory.szorc@gmail.com>
parents: 38783
diff changeset
786
1c3184d7e882 dagop: extract headsetofconnecteds() from dagutil
Gregory Szorc <gregory.szorc@gmail.com>
parents: 38783
diff changeset
787 ``nullrev`` is never included in the returned set, even if it is provided in
1c3184d7e882 dagop: extract headsetofconnecteds() from dagutil
Gregory Szorc <gregory.szorc@gmail.com>
parents: 38783
diff changeset
788 the input set.
1c3184d7e882 dagop: extract headsetofconnecteds() from dagutil
Gregory Szorc <gregory.szorc@gmail.com>
parents: 38783
diff changeset
789 """
1c3184d7e882 dagop: extract headsetofconnecteds() from dagutil
Gregory Szorc <gregory.szorc@gmail.com>
parents: 38783
diff changeset
790 headrevs = set(revs)
42057
566daffc607d cleanup: use set literals where possible
Martin von Zweigbergk <martinvonz@google.com>
parents: 41533
diff changeset
791 parents = {node.nullrev}
41277
61f9ef23a12f dagop: minor python optimization to `headrevs`
Boris Feld <boris.feld@octobus.net>
parents: 40000
diff changeset
792 up = parents.update
39179
1c3184d7e882 dagop: extract headsetofconnecteds() from dagutil
Gregory Szorc <gregory.szorc@gmail.com>
parents: 38783
diff changeset
793
1c3184d7e882 dagop: extract headsetofconnecteds() from dagutil
Gregory Szorc <gregory.szorc@gmail.com>
parents: 38783
diff changeset
794 for rev in revs:
41277
61f9ef23a12f dagop: minor python optimization to `headrevs`
Boris Feld <boris.feld@octobus.net>
parents: 40000
diff changeset
795 up(parentsfn(rev))
61f9ef23a12f dagop: minor python optimization to `headrevs`
Boris Feld <boris.feld@octobus.net>
parents: 40000
diff changeset
796 headrevs.difference_update(parents)
39179
1c3184d7e882 dagop: extract headsetofconnecteds() from dagutil
Gregory Szorc <gregory.szorc@gmail.com>
parents: 38783
diff changeset
797 return headrevs
39181
0a934ee94f09 dagop: port revlogdag.linearize() to standalone function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39179
diff changeset
798
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42446
diff changeset
799
40000
8af835af0a85 dagop: extract DAG local heads functionality from revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39999
diff changeset
800 def headrevssubset(revsfn, parentrevsfn, startrev=None, stoprevs=None):
8af835af0a85 dagop: extract DAG local heads functionality from revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39999
diff changeset
801 """Returns the set of all revs that have no children with control.
8af835af0a85 dagop: extract DAG local heads functionality from revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39999
diff changeset
802
8af835af0a85 dagop: extract DAG local heads functionality from revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39999
diff changeset
803 ``revsfn`` is a callable that with no arguments returns an iterator over
8af835af0a85 dagop: extract DAG local heads functionality from revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39999
diff changeset
804 all revision numbers in topological order. With a ``start`` argument, it
8af835af0a85 dagop: extract DAG local heads functionality from revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39999
diff changeset
805 returns revision numbers starting at that number.
8af835af0a85 dagop: extract DAG local heads functionality from revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39999
diff changeset
806
8af835af0a85 dagop: extract DAG local heads functionality from revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39999
diff changeset
807 ``parentrevsfn`` is a callable receiving a revision number and returns an
8af835af0a85 dagop: extract DAG local heads functionality from revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39999
diff changeset
808 iterable of parent revision numbers, where values can include nullrev.
8af835af0a85 dagop: extract DAG local heads functionality from revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39999
diff changeset
809
8af835af0a85 dagop: extract DAG local heads functionality from revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39999
diff changeset
810 ``startrev`` is a revision number at which to start the search.
8af835af0a85 dagop: extract DAG local heads functionality from revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39999
diff changeset
811
8af835af0a85 dagop: extract DAG local heads functionality from revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39999
diff changeset
812 ``stoprevs`` is an iterable of revision numbers that, when encountered,
8af835af0a85 dagop: extract DAG local heads functionality from revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39999
diff changeset
813 will stop DAG traversal beyond them. Parents of revisions in this
8af835af0a85 dagop: extract DAG local heads functionality from revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39999
diff changeset
814 collection will be heads.
8af835af0a85 dagop: extract DAG local heads functionality from revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39999
diff changeset
815 """
8af835af0a85 dagop: extract DAG local heads functionality from revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39999
diff changeset
816 if startrev is None:
8af835af0a85 dagop: extract DAG local heads functionality from revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39999
diff changeset
817 startrev = nullrev
8af835af0a85 dagop: extract DAG local heads functionality from revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39999
diff changeset
818
8af835af0a85 dagop: extract DAG local heads functionality from revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39999
diff changeset
819 stoprevs = set(stoprevs or [])
8af835af0a85 dagop: extract DAG local heads functionality from revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39999
diff changeset
820
8af835af0a85 dagop: extract DAG local heads functionality from revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39999
diff changeset
821 reachable = {startrev}
8af835af0a85 dagop: extract DAG local heads functionality from revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39999
diff changeset
822 heads = {startrev}
8af835af0a85 dagop: extract DAG local heads functionality from revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39999
diff changeset
823
8af835af0a85 dagop: extract DAG local heads functionality from revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39999
diff changeset
824 for rev in revsfn(start=startrev + 1):
8af835af0a85 dagop: extract DAG local heads functionality from revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39999
diff changeset
825 for prev in parentrevsfn(rev):
8af835af0a85 dagop: extract DAG local heads functionality from revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39999
diff changeset
826 if prev in reachable:
8af835af0a85 dagop: extract DAG local heads functionality from revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39999
diff changeset
827 if rev not in stoprevs:
8af835af0a85 dagop: extract DAG local heads functionality from revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39999
diff changeset
828 reachable.add(rev)
8af835af0a85 dagop: extract DAG local heads functionality from revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39999
diff changeset
829 heads.add(rev)
8af835af0a85 dagop: extract DAG local heads functionality from revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39999
diff changeset
830
8af835af0a85 dagop: extract DAG local heads functionality from revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39999
diff changeset
831 if prev in heads and prev not in stoprevs:
8af835af0a85 dagop: extract DAG local heads functionality from revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39999
diff changeset
832 heads.remove(prev)
8af835af0a85 dagop: extract DAG local heads functionality from revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39999
diff changeset
833
8af835af0a85 dagop: extract DAG local heads functionality from revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39999
diff changeset
834 return heads
8af835af0a85 dagop: extract DAG local heads functionality from revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39999
diff changeset
835
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42446
diff changeset
836
39181
0a934ee94f09 dagop: port revlogdag.linearize() to standalone function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39179
diff changeset
837 def linearize(revs, parentsfn):
0a934ee94f09 dagop: port revlogdag.linearize() to standalone function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39179
diff changeset
838 """Linearize and topologically sort a list of revisions.
0a934ee94f09 dagop: port revlogdag.linearize() to standalone function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39179
diff changeset
839
39607
5362c96f2feb dagop: fix typo spotted while doing unrelated investigation
Augie Fackler <augie@google.com>
parents: 39181
diff changeset
840 The linearization process tries to create long runs of revs where a child
39181
0a934ee94f09 dagop: port revlogdag.linearize() to standalone function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39179
diff changeset
841 rev comes immediately after its first parent. This is done by visiting the
0a934ee94f09 dagop: port revlogdag.linearize() to standalone function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39179
diff changeset
842 heads of the revs in inverse topological order, and for each visited rev,
0a934ee94f09 dagop: port revlogdag.linearize() to standalone function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39179
diff changeset
843 visiting its second parent, then its first parent, then adding the rev
0a934ee94f09 dagop: port revlogdag.linearize() to standalone function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39179
diff changeset
844 itself to the output list.
0a934ee94f09 dagop: port revlogdag.linearize() to standalone function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39179
diff changeset
845
0a934ee94f09 dagop: port revlogdag.linearize() to standalone function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39179
diff changeset
846 Returns a list of revision numbers.
0a934ee94f09 dagop: port revlogdag.linearize() to standalone function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39179
diff changeset
847 """
0a934ee94f09 dagop: port revlogdag.linearize() to standalone function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39179
diff changeset
848 visit = list(sorted(headrevs(revs, parentsfn), reverse=True))
0a934ee94f09 dagop: port revlogdag.linearize() to standalone function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39179
diff changeset
849 finished = set()
0a934ee94f09 dagop: port revlogdag.linearize() to standalone function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39179
diff changeset
850 result = []
0a934ee94f09 dagop: port revlogdag.linearize() to standalone function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39179
diff changeset
851
0a934ee94f09 dagop: port revlogdag.linearize() to standalone function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39179
diff changeset
852 while visit:
0a934ee94f09 dagop: port revlogdag.linearize() to standalone function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39179
diff changeset
853 rev = visit.pop()
0a934ee94f09 dagop: port revlogdag.linearize() to standalone function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39179
diff changeset
854 if rev < 0:
0a934ee94f09 dagop: port revlogdag.linearize() to standalone function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39179
diff changeset
855 rev = -rev - 1
0a934ee94f09 dagop: port revlogdag.linearize() to standalone function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39179
diff changeset
856
0a934ee94f09 dagop: port revlogdag.linearize() to standalone function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39179
diff changeset
857 if rev not in finished:
0a934ee94f09 dagop: port revlogdag.linearize() to standalone function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39179
diff changeset
858 result.append(rev)
0a934ee94f09 dagop: port revlogdag.linearize() to standalone function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39179
diff changeset
859 finished.add(rev)
0a934ee94f09 dagop: port revlogdag.linearize() to standalone function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39179
diff changeset
860
0a934ee94f09 dagop: port revlogdag.linearize() to standalone function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39179
diff changeset
861 else:
0a934ee94f09 dagop: port revlogdag.linearize() to standalone function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39179
diff changeset
862 visit.append(-rev - 1)
0a934ee94f09 dagop: port revlogdag.linearize() to standalone function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39179
diff changeset
863
0a934ee94f09 dagop: port revlogdag.linearize() to standalone function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39179
diff changeset
864 for prev in parentsfn(rev):
0a934ee94f09 dagop: port revlogdag.linearize() to standalone function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39179
diff changeset
865 if prev == node.nullrev or prev not in revs or prev in finished:
0a934ee94f09 dagop: port revlogdag.linearize() to standalone function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39179
diff changeset
866 continue
0a934ee94f09 dagop: port revlogdag.linearize() to standalone function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39179
diff changeset
867
0a934ee94f09 dagop: port revlogdag.linearize() to standalone function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39179
diff changeset
868 visit.append(prev)
0a934ee94f09 dagop: port revlogdag.linearize() to standalone function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39179
diff changeset
869
0a934ee94f09 dagop: port revlogdag.linearize() to standalone function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39179
diff changeset
870 assert len(result) == len(revs)
0a934ee94f09 dagop: port revlogdag.linearize() to standalone function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39179
diff changeset
871
0a934ee94f09 dagop: port revlogdag.linearize() to standalone function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39179
diff changeset
872 return result