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==========================================================
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Test file dedicated to checking side-data related behavior
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==========================================================
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Check data can be written/read from sidedata
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============================================
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$ cat << EOF >> $HGRCPATH
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> [extensions]
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> testsidedata=$TESTDIR/testlib/ext-sidedata.py
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> EOF
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$ hg init test-sidedata --config experimental.revlogv2=enable-unstable-format-and-corrupt-my-data
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$ cd test-sidedata
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$ echo aaa > a
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$ hg add a
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$ hg commit -m a --traceback
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$ echo aaa > b
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$ hg add b
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$ hg commit -m b
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$ echo xxx >> a
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$ hg commit -m aa
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$ hg debugsidedata -c 0
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2 sidedata entries
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entry-0001 size 4
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entry-0002 size 32
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$ hg debugsidedata -c 1 -v
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2 sidedata entries
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entry-0001 size 4
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'\x00\x00\x006'
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entry-0002 size 32
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'\x98\t\xf9\xc4v\xf0\xc5P\x90\xf7wRf\xe8\xe27e\xfc\xc1\x93\xa4\x96\xd0\x1d\x97\xaaG\x1d\xd7t\xfa\xde'
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$ hg debugsidedata -m 2
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2 sidedata entries
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entry-0001 size 4
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entry-0002 size 32
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$ hg debugsidedata a 1
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2 sidedata entries
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entry-0001 size 4
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entry-0002 size 32
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$ hg debug-revlog-index --verbose -c
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rev linkrev nodeid p1-rev p1-nodeid p2-rev p2-nodeid full-size delta-base flags comp-mode data-offset chunk-size sd-comp-mode
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0 0 7049e48789d7 -1 000000000000 -1 000000000000 54 0 0 0 0 54 plain
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1 1 2707720c6597 0 7049e48789d7 -1 000000000000 54 1 0 0 54 54 plain
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2 2 40f977031323 1 2707720c6597 -1 000000000000 55 2 0 0 108 55 plain
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$ hg debug-revlog-index --verbose -m
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rev linkrev nodeid p1-rev p1-nodeid p2-rev p2-nodeid full-size delta-base flags comp-mode data-offset chunk-size sd-comp-mode
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0 0 b85d294330e3 -1 000000000000 -1 000000000000 43 0 0 0 0 43 plain
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1 1 1a0aec305c63 0 b85d294330e3 -1 000000000000 86 0 0 0 43 55 plain
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2 2 104258a4f75f 1 1a0aec305c63 -1 000000000000 86 1 0 0 98 55 plain
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Check upgrade behavior
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======================
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Right now, sidedata has not upgrade support
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Check that we can upgrade to sidedata
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-------------------------------------
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$ hg init up-no-side-data --config experimental.revlogv2=no
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$ hg debugformat -v -R up-no-side-data | egrep 'changelog-v2|revlog-v2'
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revlog-v2: no no no
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changelog-v2: no no no
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$ hg debugformat -v -R up-no-side-data --config experimental.revlogv2=enable-unstable-format-and-corrupt-my-data | egrep 'changelog-v2|revlog-v2'
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revlog-v2: no yes no
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changelog-v2: no no no
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$ hg debugupgraderepo -R up-no-side-data --config experimental.revlogv2=enable-unstable-format-and-corrupt-my-data > /dev/null
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Check that we can downgrade from sidedata
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-----------------------------------------
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$ hg init up-side-data --config experimental.revlogv2=enable-unstable-format-and-corrupt-my-data
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$ hg debugformat -v -R up-side-data | egrep 'changelog-v2|revlog-v2'
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revlog-v2: yes no no
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changelog-v2: no no no
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$ hg debugformat -v -R up-side-data --config experimental.revlogv2=no | egrep 'changelog-v2|revlog-v2'
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revlog-v2: yes no no
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changelog-v2: no no no
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$ hg debugupgraderepo -R up-side-data --config experimental.revlogv2=no > /dev/null
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