Mercurial > hg
annotate tests/test-parseindex.t @ 35816:f6ca1e11d8b4 stable
revset: evaluate filesets against each revision for 'file()' (issue5778)
After f2aeff8a87b6, the fileset was evaluated to a set of files against the
working directory, and then those files were applied against each revision. The
result was nonsense. For example, `hg log -r 'file("set:exec()")'` on the
Mercurial repo listed revision 0 because it has the `hg` script, which is
currently +x. But that bit wasn't applied until revision 280 (which
'contains()' properly indicates).
This technique was borrowed from checkstatus(), which services adds(),
modifies(), and removes(), so it seems safe enough. The 'r:' case is explicitly
assigned to wdirrev, freeing up rev=None to mean "re-evaluate at each revision".
The distinction is important to avoid behavior changes with `hg log set:...`
(test-largefiles-misc.t and test-fileset-generated.t drop current log output
without this). I'm not sure what the right behavior for that is (1fd352aa08fc
explicitly enabled this behavior for graphlog), but the day before the release
isn't the time to experiment.
author | Matt Harbison <matt_harbison@yahoo.com> |
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date | Sun, 28 Jan 2018 14:08:59 -0500 |
parents | 8e6f4939a69a |
children | c839bbee1e13 |
rev | line source |
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1 revlog.parseindex must be able to parse the index file even if |
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2 an index entry is split between two 64k blocks. The ideal test |
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3 would be to create an index file with inline data where |
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4 64k < size < 64k + 64 (64k is the size of the read buffer, 64 is |
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5 the size of an index entry) and with an index entry starting right |
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6 before the 64k block boundary, and try to read it. |
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7 We approximate that by reducing the read buffer to 1 byte. |
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8 |
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9 $ hg init a |
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10 $ cd a |
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11 $ echo abc > foo |
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12 $ hg add foo |
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13 $ hg commit -m 'add foo' |
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14 $ echo >> foo |
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15 $ hg commit -m 'change foo' |
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16 $ hg log -r 0: |
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17 changeset: 0:7c31755bf9b5 |
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18 user: test |
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19 date: Thu Jan 01 00:00:00 1970 +0000 |
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20 summary: add foo |
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21 |
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22 changeset: 1:26333235a41c |
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23 tag: tip |
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24 user: test |
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25 date: Thu Jan 01 00:00:00 1970 +0000 |
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26 summary: change foo |
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27 |
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28 $ cat >> test.py << EOF |
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29 > from mercurial import changelog, vfs |
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30 > from mercurial.node import * |
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31 > |
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32 > class singlebyteread(object): |
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33 > def __init__(self, real): |
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34 > self.real = real |
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35 > |
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36 > def read(self, size=-1): |
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37 > if size == 65536: |
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38 > size = 1 |
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39 > return self.real.read(size) |
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40 > |
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41 > def __getattr__(self, key): |
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42 > return getattr(self.real, key) |
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43 > |
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44 > def opener(*args): |
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45 > o = vfs.vfs(*args) |
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46 > def wrapper(*a): |
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47 > f = o(*a) |
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48 > return singlebyteread(f) |
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49 > return wrapper |
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50 > |
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51 > cl = changelog.changelog(opener('.hg/store')) |
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52 > print len(cl), 'revisions:' |
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53 > for r in cl: |
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54 > print short(cl.node(r)) |
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55 > EOF |
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56 $ $PYTHON test.py |
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57 2 revisions: |
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58 7c31755bf9b5 |
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59 26333235a41c |
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60 |
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61 $ cd .. |
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62 |
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63 #if no-pure |
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64 |
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65 Test SEGV caused by bad revision passed to reachableroots() (issue4775): |
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66 |
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67 $ cd a |
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68 |
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69 $ $PYTHON <<EOF |
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70 > from mercurial import changelog, vfs |
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71 > cl = changelog.changelog(vfs.vfs('.hg/store')) |
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72 > print 'good heads:' |
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73 > for head in [0, len(cl) - 1, -1]: |
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74 > print'%s: %r' % (head, cl.reachableroots(0, [head], [0])) |
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75 > print 'bad heads:' |
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76 > for head in [len(cl), 10000, -2, -10000, None]: |
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77 > print '%s:' % head, |
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78 > try: |
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79 > cl.reachableroots(0, [head], [0]) |
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80 > print 'uncaught buffer overflow?' |
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81 > except (IndexError, TypeError) as inst: |
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82 > print inst |
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83 > print 'good roots:' |
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84 > for root in [0, len(cl) - 1, -1]: |
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85 > print '%s: %r' % (root, cl.reachableroots(root, [len(cl) - 1], [root])) |
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86 > print 'out-of-range roots are ignored:' |
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87 > for root in [len(cl), 10000, -2, -10000]: |
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88 > print '%s: %r' % (root, cl.reachableroots(root, [len(cl) - 1], [root])) |
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89 > print 'bad roots:' |
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90 > for root in [None]: |
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91 > print '%s:' % root, |
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92 > try: |
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93 > cl.reachableroots(root, [len(cl) - 1], [root]) |
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94 > print 'uncaught error?' |
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95 > except TypeError as inst: |
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96 > print inst |
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97 > EOF |
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98 good heads: |
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99 0: [0] |
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100 1: [0] |
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101 -1: [] |
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102 bad heads: |
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103 2: head out of range |
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104 10000: head out of range |
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105 -2: head out of range |
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106 -10000: head out of range |
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107 None: an integer is required |
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108 good roots: |
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109 0: [0] |
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110 1: [1] |
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111 -1: [-1] |
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112 out-of-range roots are ignored: |
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113 2: [] |
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114 10000: [] |
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115 -2: [] |
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116 -10000: [] |
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117 bad roots: |
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118 None: an integer is required |
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119 |
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120 $ cd .. |
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121 |
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122 Test corrupted p1/p2 fields that could cause SEGV at parsers.c: |
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123 |
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124 $ mkdir invalidparent |
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125 $ cd invalidparent |
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126 |
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127 $ hg clone --pull -q --config phases.publish=False ../a limit |
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128 $ hg clone --pull -q --config phases.publish=False ../a segv |
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129 $ rm -R limit/.hg/cache segv/.hg/cache |
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130 |
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131 $ $PYTHON <<EOF |
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132 > data = open("limit/.hg/store/00changelog.i", "rb").read() |
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133 > for n, p in [('limit', '\0\0\0\x02'), ('segv', '\0\x01\0\0')]: |
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134 > # corrupt p1 at rev0 and p2 at rev1 |
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135 > d = data[:24] + p + data[28:127 + 28] + p + data[127 + 32:] |
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136 > open(n + "/.hg/store/00changelog.i", "wb").write(d) |
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137 > EOF |
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138 |
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139 $ hg debugindex -f1 limit/.hg/store/00changelog.i |
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140 rev flag offset length size base link p1 p2 nodeid |
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141 0 0000 0 63 62 0 0 2 -1 7c31755bf9b5 |
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142 1 0000 63 66 65 1 1 0 2 26333235a41c |
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143 $ hg debugindex -f1 segv/.hg/store/00changelog.i |
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144 rev flag offset length size base link p1 p2 nodeid |
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145 0 0000 0 63 62 0 0 65536 -1 7c31755bf9b5 |
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146 1 0000 63 66 65 1 1 0 65536 26333235a41c |
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147 |
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148 $ cat <<EOF > test.py |
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149 > import sys |
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150 > from mercurial import changelog, vfs |
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151 > cl = changelog.changelog(vfs.vfs(sys.argv[1])) |
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152 > n0, n1 = cl.node(0), cl.node(1) |
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153 > ops = [ |
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154 > ('reachableroots', |
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155 > lambda: cl.index.reachableroots2(0, [1], [0], False)), |
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156 > ('compute_phases_map_sets', lambda: cl.computephases([[0], []])), |
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157 > ('index_headrevs', lambda: cl.headrevs()), |
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158 > ('find_gca_candidates', lambda: cl.commonancestorsheads(n0, n1)), |
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159 > ('find_deepest', lambda: cl.ancestor(n0, n1)), |
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160 > ] |
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161 > for l, f in ops: |
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162 > print l + ':', |
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163 > try: |
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164 > f() |
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165 > print 'uncaught buffer overflow?' |
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166 > except ValueError, inst: |
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167 > print inst |
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168 > EOF |
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169 |
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170 $ $PYTHON test.py limit/.hg/store |
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171 reachableroots: parent out of range |
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172 compute_phases_map_sets: parent out of range |
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173 index_headrevs: parent out of range |
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174 find_gca_candidates: parent out of range |
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175 find_deepest: parent out of range |
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176 $ $PYTHON test.py segv/.hg/store |
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177 reachableroots: parent out of range |
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178 compute_phases_map_sets: parent out of range |
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179 index_headrevs: parent out of range |
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180 find_gca_candidates: parent out of range |
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181 find_deepest: parent out of range |
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182 |
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183 $ cd .. |
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184 |
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185 #endif |