annotate tests/test-revlog.t @ 49263:27583efef74d

debugindex: add a `sd-comp-mode` column
author Pierre-Yves DAVID <pierre-yves.david@octobus.net>
date Wed, 01 Jun 2022 01:34:43 +0200
parents a94f28be2e6e
children b10e4c19f8c5
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 $ hg init empty-repo
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2 $ cd empty-repo
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3
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4 Flags on revlog version 0 are rejected
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5
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6 >>> with open('.hg/store/00changelog.i', 'wb') as fh:
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7 ... fh.write(b'\x00\x01\x00\x00') and None
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8
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9 $ hg log
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10 abort: unknown flags (0x01) in version 0 revlog 00changelog
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11 [50]
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12
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13 Unknown flags on revlog version 1 are rejected
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14
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15 >>> with open('.hg/store/00changelog.i', 'wb') as fh:
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16 ... fh.write(b'\x00\x04\x00\x01') and None
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17
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18 $ hg log
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19 abort: unknown flags (0x04) in version 1 revlog 00changelog
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20 [50]
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21
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22 Unknown version is rejected
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23
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24 >>> with open('.hg/store/00changelog.i', 'wb') as fh:
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25 ... fh.write(b'\x00\x00\xbe\xef') and None
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26
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27 $ hg log
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28 abort: unknown version (48879) in revlog 00changelog
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29 [50]
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30
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31 $ cd ..
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32
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33 Test for CVE-2016-3630
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34
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35 $ mkdir test2; cd test2
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36 $ hg init
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37
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38 >>> import codecs
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39 >>> open("a.i", "wb").write(codecs.decode(codecs.decode(
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40 ... b"""eJxjYGZgZIAAYQYGxhgom+k/FMx8YKx9ZUaKSOyqo4cnuKb8mbqHV5cBCVTMWb1Cwqkhe4Gsg9AD
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41 ... Joa3dYtcYYYBAQ8Qr4OqZAYRICPTSr5WKd/42rV36d+8/VmrNpv7NP1jQAXrQE4BqQUARngwVA==""",
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42 ... "base64"), "zlib")) and None
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43
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44 $ hg debugrevlogindex a.i
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45 rev linkrev nodeid p1 p2
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46 0 2 99e0332bd498 000000000000 000000000000
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47 1 3 6674f57a23d8 99e0332bd498 000000000000
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48
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49 >>> from mercurial.revlogutils.constants import KIND_OTHER
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50 >>> from mercurial import revlog, vfs
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51 >>> tvfs = vfs.vfs(b'.')
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52 >>> tvfs.options = {b'revlogv1': True}
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53 >>> rl = revlog.revlog(tvfs, target=(KIND_OTHER, b'test'), radix=b'a')
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54 >>> rl.revision(1)
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55 mpatchError(*'patch cannot be decoded'*) (glob)
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56
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57 $ cd ..
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58
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59
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60 Regression test for support for the old repos with strange diff encoding.
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61 Apparently it used to be possible (maybe it's still possible, but we don't know how)
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62 to create commits whose diffs are encoded relative to a nullrev.
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63 This test checks that a repo with that encoding can still be read.
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64
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65 This is what we did to produce the repo in test-revlog-diff-relative-to-nullrev.tar:
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66
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67 - tweak the code in mercurial/revlogutils/deltas.py to produce such "trivial" deltas:
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68 > if deltainfo is None:
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69 > - deltainfo = self._fullsnapshotinfo(fh, revinfo, target_rev)
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70 > + deltainfo = self._builddeltainfo(revinfo, nullrev, fh)
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71 - hg init
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72 - echo hi > a
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73 - hg commit -Am_
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74 - remove some cache files
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75
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76 $ tar --force-local -xf "$TESTDIR"/bundles/test-revlog-diff-relative-to-nullrev.tar
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77 $ cd nullrev-diff
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78 $ hg debugdeltachain a
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79 rev p1 p2 chain# chainlen prev delta size rawsize chainsize ratio lindist extradist extraratio readsize largestblk rddensity srchunks
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80 0 -1 -1 1 2 -1 p1 15 3 15 5.00000 15 0 0.00000 15 15 1.00000 1
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81 1 0 -1 1 2 -1 p2 15 3 15 5.00000 30 15 1.00000 30 30 0.50000 1
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82 2 -1 -1 1 2 -1 p1 15 3 15 5.00000 45 30 2.00000 45 45 0.33333 1
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83 $ hg cat --config rhg.cat=true -r 0 a
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84 hi
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85 $ hg cat --config rhg.cat=true -r 1 a
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86 ho
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87 $ hg cat --config rhg.cat=true -r 2 a
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88 ha
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89 $ cd ..