Mercurial > hg
annotate tests/test-revlog.t @ 49603:3eda36e9b3d6 stable
matcher: fix issues regex flag contained in pattern (issue6759)
Python 3.11 is now enforcing that flag must be at the beginning of the regex
This creates a serious regression for people using Python 3.11 with an hgignore
using flag in a "relre" pattern.
We now detect any flags in such pattern and "prepend" our ".*" pattern after them.
In addition, we now insert the flag in the regexp to only affect the pattern we
are rewriting. Otherwise, the regex built from the combined pattern would these
flags in the middle of it anyway.
As a side effect of this last change, we fix a bug… before this change regex
flag in a pattern would affect all combined patterns. That was bad and is not
longer the case.
The Rust code needs to be updated to fix that very bug, but we will do it in
another changeset.
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Wed, 16 Nov 2022 13:05:01 +0100 |
parents | 58e38c1a2370 |
children | 786b6225793a |
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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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39 >>> open("a.i", "wb").write(codecs.decode(codecs.decode( | |
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40 ... b"""eJxjYGZgZIAAYQYGxhgom+k/FMx8YKx9ZUaKSOyqo4cnuKb8mbqHV5cBCVTMWb1Cwqkhe4Gsg9AD |
40281 | 41 ... Joa3dYtcYYYBAQ8Qr4OqZAYRICPTSr5WKd/42rV36d+8/VmrNpv7NP1jQAXrQE4BqQUARngwVA==""", |
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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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 -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 .. |