Mercurial > hg
view tests/test-generaldelta.t @ 40053:8c692a6b5ad1
fuzz: new fuzzer for cext/manifest.c
This is a bit messy, because lazymanifest is tightly coupled to the
cpython API for performance reasons. As a result, we have to build a
whole Python without pymalloc (so ASAN can help us out) and link
against that. Then we have to use an embedded Python interpreter. We
could manually drive the lazymanifest in C from that point, but
experimentally just using PyEval_EvalCode isn't really any slower so
we may as well do that and write the innermost guts of the fuzzer in
Python.
Leak detection is currently disabled for this fuzzer because there are
a few global-lifetime things in our extensions that we more or less
intentionally leak and I didn't want to take the detour to work around
that for now.
This should not be pushed to our repo until
https://github.com/google/oss-fuzz/pull/1853 is merged, as this
depends on having the Python tarball around.
Differential Revision: https://phab.mercurial-scm.org/D4879
| author | Augie Fackler <augie@google.com> |
|---|---|
| date | Thu, 06 Sep 2018 02:36:25 -0400 |
| parents | db5501d93bcf |
| children | 634b45317459 |
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#require no-reposimplestore Check whether size of generaldelta revlog is not bigger than its regular equivalent. Test would fail if generaldelta was naive implementation of parentdelta: third manifest revision would be fully inserted due to big distance from its paren revision (zero). $ hg init repo --config format.generaldelta=no --config format.usegeneraldelta=no $ cd repo $ echo foo > foo $ echo bar > bar $ echo baz > baz $ hg commit -q -Am boo $ hg clone --pull . ../gdrepo -q --config format.generaldelta=yes $ for r in 1 2 3; do > echo $r > foo > hg commit -q -m $r > hg up -q -r 0 > hg pull . -q -r $r -R ../gdrepo > done $ cd .. >>> from __future__ import print_function >>> import os >>> regsize = os.stat("repo/.hg/store/00manifest.i").st_size >>> gdsize = os.stat("gdrepo/.hg/store/00manifest.i").st_size >>> if regsize < gdsize: ... print('generaldata increased size of manifest') Verify rev reordering doesnt create invalid bundles (issue4462) This requires a commit tree that when pulled will reorder manifest revs such that the second manifest to create a file rev will be ordered before the first manifest to create that file rev. We also need to do a partial pull to ensure reordering happens. At the end we verify the linkrev points at the earliest commit. $ hg init server --config format.generaldelta=True $ cd server $ touch a $ hg commit -Aqm a $ echo x > x $ echo y > y $ hg commit -Aqm xy $ hg up -q '.^' $ echo x > x $ echo z > z $ hg commit -Aqm xz $ hg up -q 1 $ echo b > b $ hg commit -Aqm b $ hg merge -q 2 $ hg commit -Aqm merge $ echo c > c $ hg commit -Aqm c $ hg log -G -T '{rev} {shortest(node)} {desc}' @ 5 ebb8 c | o 4 baf7 merge |\ | o 3 a129 b | | o | 2 958c xz | | | o 1 f00c xy |/ o 0 3903 a $ cd .. $ hg init client --config format.generaldelta=false --config format.usegeneraldelta=false $ cd client $ hg pull -q ../server -r 4 $ hg debugdeltachain x rev chain# chainlen prev delta size rawsize chainsize ratio lindist extradist extraratio 0 1 1 -1 base 3 2 3 1.50000 3 0 0.00000 $ cd .. Test "usegeneraldelta" config (repo are general delta, but incoming bundle are not re-deltafied) delta coming from the server base delta server are not recompressed. (also include the aggressive version for comparison) $ hg clone repo --pull --config format.usegeneraldelta=1 usegd requesting all changes adding changesets adding manifests adding file changes added 4 changesets with 6 changes to 3 files (+2 heads) new changesets 0ea3fcf9d01d:bba78d330d9c updating to branch default 3 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg clone repo --pull --config format.generaldelta=1 full requesting all changes adding changesets adding manifests adding file changes added 4 changesets with 6 changes to 3 files (+2 heads) new changesets 0ea3fcf9d01d:bba78d330d9c updating to branch default 3 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg -R repo debugdeltachain -m rev chain# chainlen prev delta size rawsize chainsize ratio lindist extradist extraratio 0 1 1 -1 base 104 135 104 0.77037 104 0 0.00000 1 1 2 0 prev 57 135 161 1.19259 161 0 0.00000 2 1 3 1 prev 57 135 218 1.61481 218 0 0.00000 3 2 1 -1 base 104 135 104 0.77037 104 0 0.00000 $ hg -R usegd debugdeltachain -m rev chain# chainlen prev delta size rawsize chainsize ratio lindist extradist extraratio 0 1 1 -1 base 104 135 104 0.77037 104 0 0.00000 1 1 2 0 p1 57 135 161 1.19259 161 0 0.00000 2 1 3 1 prev 57 135 218 1.61481 218 0 0.00000 3 1 2 0 p1 57 135 161 1.19259 275 114 0.70807 $ hg -R full debugdeltachain -m rev chain# chainlen prev delta size rawsize chainsize ratio lindist extradist extraratio 0 1 1 -1 base 104 135 104 0.77037 104 0 0.00000 1 1 2 0 p1 57 135 161 1.19259 161 0 0.00000 2 1 2 0 p1 57 135 161 1.19259 218 57 0.35404 3 1 2 0 p1 57 135 161 1.19259 275 114 0.70807 Test revlog.optimize-delta-parent-choice $ hg init --config format.generaldelta=1 aggressive $ cd aggressive $ cat << EOF >> .hg/hgrc > [format] > generaldelta = 1 > EOF $ touch a b c d e $ hg commit -Aqm side1 $ hg up -q null $ touch x y $ hg commit -Aqm side2 - Verify non-aggressive merge uses p1 (commit 1) as delta parent $ hg merge -q 0 $ hg commit -q -m merge $ hg debugdeltachain -m rev chain# chainlen prev delta size rawsize chainsize ratio lindist extradist extraratio 0 1 1 -1 base 59 215 59 0.27442 59 0 0.00000 1 1 2 0 prev 61 86 120 1.39535 120 0 0.00000 2 1 2 0 p2 62 301 121 0.40199 182 61 0.50413 $ hg strip -q -r . --config extensions.strip= - Verify aggressive merge uses p2 (commit 0) as delta parent $ hg up -q -C 1 $ hg merge -q 0 $ hg commit -q -m merge --config storage.revlog.optimize-delta-parent-choice=yes $ hg debugdeltachain -m rev chain# chainlen prev delta size rawsize chainsize ratio lindist extradist extraratio 0 1 1 -1 base 59 215 59 0.27442 59 0 0.00000 1 1 2 0 prev 61 86 120 1.39535 120 0 0.00000 2 1 2 0 p2 62 301 121 0.40199 182 61 0.50413 Test that strip bundle use bundle2 $ hg --config extensions.strip= strip . 0 files updated, 0 files merged, 5 files removed, 0 files unresolved saved backup bundle to $TESTTMP/aggressive/.hg/strip-backup/1c5d4dc9a8b8-6c68e60c-backup.hg $ hg debugbundle .hg/strip-backup/* Stream params: {Compression: BZ} changegroup -- {nbchanges: 1, version: 02} (mandatory: True) 1c5d4dc9a8b8d6e1750966d343e94db665e7a1e9 cache:rev-branch-cache -- {} (mandatory: False) phase-heads -- {} (mandatory: True) 1c5d4dc9a8b8d6e1750966d343e94db665e7a1e9 draft $ cd .. test maxdeltachainspan $ hg init source-repo $ cd source-repo $ hg debugbuilddag --new-file '.+5:brancha$.+11:branchb$.+30:branchc<brancha+2<branchb+2' # add an empty revision somewhere $ hg up tip 14 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg rm . removing nf10 removing nf11 removing nf12 removing nf13 removing nf14 removing nf15 removing nf16 removing nf17 removing nf51 removing nf52 removing nf6 removing nf7 removing nf8 removing nf9 $ hg commit -m 'empty all' $ hg revert --all --rev 'p1(.)' adding nf10 adding nf11 adding nf12 adding nf13 adding nf14 adding nf15 adding nf16 adding nf17 adding nf51 adding nf52 adding nf6 adding nf7 adding nf8 adding nf9 $ hg commit -m 'restore all' $ hg up null 0 files updated, 0 files merged, 14 files removed, 0 files unresolved $ $ cd .. $ hg -R source-repo debugdeltachain -m rev chain# chainlen prev delta size rawsize chainsize ratio lindist extradist extraratio 0 1 1 -1 base 46 45 46 1.02222 46 0 0.00000 1 1 2 0 p1 57 90 103 1.14444 103 0 0.00000 2 1 3 1 p1 57 135 160 1.18519 160 0 0.00000 3 1 4 2 p1 57 180 217 1.20556 217 0 0.00000 4 1 5 3 p1 57 225 274 1.21778 274 0 0.00000 5 1 6 4 p1 57 270 331 1.22593 331 0 0.00000 6 2 1 -1 base 46 45 46 1.02222 46 0 0.00000 7 2 2 6 p1 57 90 103 1.14444 103 0 0.00000 8 2 3 7 p1 57 135 160 1.18519 160 0 0.00000 9 2 4 8 p1 57 180 217 1.20556 217 0 0.00000 10 2 5 9 p1 58 226 275 1.21681 275 0 0.00000 11 2 6 10 p1 58 272 333 1.22426 333 0 0.00000 12 2 7 11 p1 58 318 391 1.22956 391 0 0.00000 13 2 8 12 p1 58 364 449 1.23352 449 0 0.00000 14 2 9 13 p1 58 410 507 1.23659 507 0 0.00000 15 2 10 14 p1 58 456 565 1.23904 565 0 0.00000 16 2 11 15 p1 58 502 623 1.24104 623 0 0.00000 17 2 12 16 p1 58 548 681 1.24270 681 0 0.00000 18 3 1 -1 base 47 46 47 1.02174 47 0 0.00000 19 3 2 18 p1 58 92 105 1.14130 105 0 0.00000 20 3 3 19 p1 58 138 163 1.18116 163 0 0.00000 21 3 4 20 p1 58 184 221 1.20109 221 0 0.00000 22 3 5 21 p1 58 230 279 1.21304 279 0 0.00000 23 3 6 22 p1 58 276 337 1.22101 337 0 0.00000 24 3 7 23 p1 58 322 395 1.22671 395 0 0.00000 25 3 8 24 p1 58 368 453 1.23098 453 0 0.00000 26 3 9 25 p1 58 414 511 1.23430 511 0 0.00000 27 3 10 26 p1 58 460 569 1.23696 569 0 0.00000 28 3 11 27 p1 58 506 627 1.23913 627 0 0.00000 29 3 12 28 p1 58 552 685 1.24094 685 0 0.00000 30 3 13 29 p1 58 598 743 1.24247 743 0 0.00000 31 3 14 30 p1 58 644 801 1.24379 801 0 0.00000 32 3 15 31 p1 58 690 859 1.24493 859 0 0.00000 33 3 16 32 p1 58 736 917 1.24592 917 0 0.00000 34 3 17 33 p1 58 782 975 1.24680 975 0 0.00000 35 3 18 34 p1 58 828 1033 1.24758 1033 0 0.00000 36 3 19 35 p1 58 874 1091 1.24828 1091 0 0.00000 37 3 20 36 p1 58 920 1149 1.24891 1149 0 0.00000 38 3 21 37 p1 58 966 1207 1.24948 1207 0 0.00000 39 3 22 38 p1 58 1012 1265 1.25000 1265 0 0.00000 40 3 23 39 p1 58 1058 1323 1.25047 1323 0 0.00000 41 3 24 40 p1 58 1104 1381 1.25091 1381 0 0.00000 42 3 25 41 p1 58 1150 1439 1.25130 1439 0 0.00000 43 3 26 42 p1 58 1196 1497 1.25167 1497 0 0.00000 44 3 27 43 p1 58 1242 1555 1.25201 1555 0 0.00000 45 3 28 44 p1 58 1288 1613 1.25233 1613 0 0.00000 46 3 29 45 p1 58 1334 1671 1.25262 1671 0 0.00000 47 3 30 46 p1 58 1380 1729 1.25290 1729 0 0.00000 48 3 31 47 p1 58 1426 1787 1.25316 1787 0 0.00000 49 4 1 -1 base 197 316 197 0.62342 197 0 0.00000 50 4 2 49 p1 58 362 255 0.70442 255 0 0.00000 51 4 3 50 prev 356 594 611 1.02862 611 0 0.00000 52 4 4 51 p1 58 640 669 1.04531 669 0 0.00000 53 5 1 -1 base 0 0 0 0.00000 0 0 0.00000 54 6 1 -1 base 369 640 369 0.57656 369 0 0.00000 $ hg clone --pull source-repo --config experimental.maxdeltachainspan=2800 relax-chain --config format.generaldelta=yes requesting all changes adding changesets adding manifests adding file changes added 55 changesets with 53 changes to 53 files (+2 heads) new changesets 61246295ee1e:c930ac4a5b32 updating to branch default 14 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg -R relax-chain debugdeltachain -m rev chain# chainlen prev delta size rawsize chainsize ratio lindist extradist extraratio 0 1 1 -1 base 47 46 47 1.02174 47 0 0.00000 1 1 2 0 p1 58 92 105 1.14130 105 0 0.00000 2 1 3 1 p1 58 138 163 1.18116 163 0 0.00000 3 1 4 2 p1 58 184 221 1.20109 221 0 0.00000 4 1 5 3 p1 58 230 279 1.21304 279 0 0.00000 5 1 6 4 p1 58 276 337 1.22101 337 0 0.00000 6 1 7 5 p1 58 322 395 1.22671 395 0 0.00000 7 1 8 6 p1 58 368 453 1.23098 453 0 0.00000 8 1 9 7 p1 58 414 511 1.23430 511 0 0.00000 9 1 10 8 p1 58 460 569 1.23696 569 0 0.00000 10 1 11 9 p1 58 506 627 1.23913 627 0 0.00000 11 1 12 10 p1 58 552 685 1.24094 685 0 0.00000 12 1 13 11 p1 58 598 743 1.24247 743 0 0.00000 13 1 14 12 p1 58 644 801 1.24379 801 0 0.00000 14 1 15 13 p1 58 690 859 1.24493 859 0 0.00000 15 1 16 14 p1 58 736 917 1.24592 917 0 0.00000 16 1 17 15 p1 58 782 975 1.24680 975 0 0.00000 17 1 18 16 p1 58 828 1033 1.24758 1033 0 0.00000 18 1 19 17 p1 58 874 1091 1.24828 1091 0 0.00000 19 1 20 18 p1 58 920 1149 1.24891 1149 0 0.00000 20 1 21 19 p1 58 966 1207 1.24948 1207 0 0.00000 21 1 22 20 p1 58 1012 1265 1.25000 1265 0 0.00000 22 1 23 21 p1 58 1058 1323 1.25047 1323 0 0.00000 23 1 24 22 p1 58 1104 1381 1.25091 1381 0 0.00000 24 1 25 23 p1 58 1150 1439 1.25130 1439 0 0.00000 25 1 26 24 p1 58 1196 1497 1.25167 1497 0 0.00000 26 1 27 25 p1 58 1242 1555 1.25201 1555 0 0.00000 27 1 28 26 p1 58 1288 1613 1.25233 1613 0 0.00000 28 1 29 27 p1 58 1334 1671 1.25262 1671 0 0.00000 29 1 30 28 p1 58 1380 1729 1.25290 1729 0 0.00000 30 1 31 29 p1 58 1426 1787 1.25316 1787 0 0.00000 31 2 1 -1 base 46 45 46 1.02222 46 0 0.00000 32 2 2 31 p1 57 90 103 1.14444 103 0 0.00000 33 2 3 32 p1 57 135 160 1.18519 160 0 0.00000 34 2 4 33 p1 57 180 217 1.20556 217 0 0.00000 35 2 5 34 p1 57 225 274 1.21778 274 0 0.00000 36 2 6 35 p1 57 270 331 1.22593 331 0 0.00000 37 2 7 36 p1 58 316 389 1.23101 389 0 0.00000 38 2 8 37 p1 58 362 447 1.23481 447 0 0.00000 39 3 1 -1 base 46 45 46 1.02222 46 0 0.00000 40 3 2 39 p1 57 90 103 1.14444 103 0 0.00000 41 3 3 40 p1 57 135 160 1.18519 160 0 0.00000 42 3 4 41 p1 57 180 217 1.20556 217 0 0.00000 43 3 5 42 p1 58 226 275 1.21681 275 0 0.00000 44 3 6 43 p1 58 272 333 1.22426 333 0 0.00000 45 3 7 44 p1 58 318 391 1.22956 391 0 0.00000 46 3 8 45 p1 58 364 449 1.23352 449 0 0.00000 47 3 9 46 p1 58 410 507 1.23659 507 0 0.00000 48 3 10 47 p1 58 456 565 1.23904 565 0 0.00000 49 3 11 48 p1 58 502 623 1.24104 623 0 0.00000 50 3 12 49 p1 58 548 681 1.24270 681 0 0.00000 51 3 13 50 p1 58 594 739 1.24411 739 0 0.00000 52 3 14 51 p1 58 640 797 1.24531 797 0 0.00000 53 4 1 -1 base 0 0 0 0.00000 0 0 0.00000 54 5 1 -1 base 369 640 369 0.57656 369 0 0.00000 $ hg clone --pull source-repo --config experimental.maxdeltachainspan=0 noconst-chain --config format.generaldelta=yes requesting all changes adding changesets adding manifests adding file changes added 55 changesets with 53 changes to 53 files (+2 heads) new changesets 61246295ee1e:c930ac4a5b32 updating to branch default 14 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg -R noconst-chain debugdeltachain -m rev chain# chainlen prev delta size rawsize chainsize ratio lindist extradist extraratio 0 1 1 -1 base 47 46 47 1.02174 47 0 0.00000 1 1 2 0 p1 58 92 105 1.14130 105 0 0.00000 2 1 3 1 p1 58 138 163 1.18116 163 0 0.00000 3 1 4 2 p1 58 184 221 1.20109 221 0 0.00000 4 1 5 3 p1 58 230 279 1.21304 279 0 0.00000 5 1 6 4 p1 58 276 337 1.22101 337 0 0.00000 6 1 7 5 p1 58 322 395 1.22671 395 0 0.00000 7 1 8 6 p1 58 368 453 1.23098 453 0 0.00000 8 1 9 7 p1 58 414 511 1.23430 511 0 0.00000 9 1 10 8 p1 58 460 569 1.23696 569 0 0.00000 10 1 11 9 p1 58 506 627 1.23913 627 0 0.00000 11 1 12 10 p1 58 552 685 1.24094 685 0 0.00000 12 1 13 11 p1 58 598 743 1.24247 743 0 0.00000 13 1 14 12 p1 58 644 801 1.24379 801 0 0.00000 14 1 15 13 p1 58 690 859 1.24493 859 0 0.00000 15 1 16 14 p1 58 736 917 1.24592 917 0 0.00000 16 1 17 15 p1 58 782 975 1.24680 975 0 0.00000 17 1 18 16 p1 58 828 1033 1.24758 1033 0 0.00000 18 1 19 17 p1 58 874 1091 1.24828 1091 0 0.00000 19 1 20 18 p1 58 920 1149 1.24891 1149 0 0.00000 20 1 21 19 p1 58 966 1207 1.24948 1207 0 0.00000 21 1 22 20 p1 58 1012 1265 1.25000 1265 0 0.00000 22 1 23 21 p1 58 1058 1323 1.25047 1323 0 0.00000 23 1 24 22 p1 58 1104 1381 1.25091 1381 0 0.00000 24 1 25 23 p1 58 1150 1439 1.25130 1439 0 0.00000 25 1 26 24 p1 58 1196 1497 1.25167 1497 0 0.00000 26 1 27 25 p1 58 1242 1555 1.25201 1555 0 0.00000 27 1 28 26 p1 58 1288 1613 1.25233 1613 0 0.00000 28 1 29 27 p1 58 1334 1671 1.25262 1671 0 0.00000 29 1 30 28 p1 58 1380 1729 1.25290 1729 0 0.00000 30 1 31 29 p1 58 1426 1787 1.25316 1787 0 0.00000 31 2 1 -1 base 46 45 46 1.02222 46 0 0.00000 32 2 2 31 p1 57 90 103 1.14444 103 0 0.00000 33 2 3 32 p1 57 135 160 1.18519 160 0 0.00000 34 2 4 33 p1 57 180 217 1.20556 217 0 0.00000 35 2 5 34 p1 57 225 274 1.21778 274 0 0.00000 36 2 6 35 p1 57 270 331 1.22593 331 0 0.00000 37 2 7 36 p1 58 316 389 1.23101 389 0 0.00000 38 2 8 37 p1 58 362 447 1.23481 447 0 0.00000 39 3 1 -1 base 46 45 46 1.02222 46 0 0.00000 40 3 2 39 p1 57 90 103 1.14444 103 0 0.00000 41 3 3 40 p1 57 135 160 1.18519 160 0 0.00000 42 3 4 41 p1 57 180 217 1.20556 217 0 0.00000 43 3 5 42 p1 58 226 275 1.21681 275 0 0.00000 44 3 6 43 p1 58 272 333 1.22426 333 0 0.00000 45 3 7 44 p1 58 318 391 1.22956 391 0 0.00000 46 3 8 45 p1 58 364 449 1.23352 449 0 0.00000 47 3 9 46 p1 58 410 507 1.23659 507 0 0.00000 48 3 10 47 p1 58 456 565 1.23904 565 0 0.00000 49 3 11 48 p1 58 502 623 1.24104 623 0 0.00000 50 3 12 49 p1 58 548 681 1.24270 681 0 0.00000 51 3 13 50 p1 58 594 739 1.24411 739 0 0.00000 52 3 14 51 p1 58 640 797 1.24531 797 0 0.00000 53 4 1 -1 base 0 0 0 0.00000 0 0 0.00000 54 5 1 -1 base 369 640 369 0.57656 369 0 0.00000