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===================================
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Test the persistent on-disk nodemap
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===================================
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$ hg init test-repo
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$ cd test-repo
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$ cat << EOF >> .hg/hgrc
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> [experimental]
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> exp-persistent-nodemap=yes
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> [devel]
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> persistent-nodemap=yes
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> EOF
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$ hg debugbuilddag .+5000
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$ hg debugnodemap --metadata
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uid: ???????????????? (glob)
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tip-rev: 5000
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tip-node: 06ddac466af534d365326c13c3879f97caca3cb1
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data-length: 122880
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data-unused: 0
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$ f --size .hg/store/00changelog.n
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.hg/store/00changelog.n: size=70
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Simple lookup works
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$ ANYNODE=`hg log --template '{node|short}\n' --rev tip`
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$ hg log -r "$ANYNODE" --template '{rev}\n'
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5000
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#if rust
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$ f --sha256 .hg/store/00changelog-*.nd
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.hg/store/00changelog-????????????????.nd: sha256=1e38e9ffaa45cad13f15c1a9880ad606f4241e8beea2f61b4d5365abadfb55f6 (glob)
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$ hg debugnodemap --dump-new | f --sha256 --size
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size=122880, sha256=1e38e9ffaa45cad13f15c1a9880ad606f4241e8beea2f61b4d5365abadfb55f6
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$ hg debugnodemap --dump-disk | f --sha256 --bytes=256 --hexdump --size
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size=122880, sha256=1e38e9ffaa45cad13f15c1a9880ad606f4241e8beea2f61b4d5365abadfb55f6
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0000: 00 00 00 76 00 00 01 65 00 00 00 95 00 00 01 34 |...v...e.......4|
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0010: 00 00 00 19 00 00 01 69 00 00 00 ab 00 00 00 4b |.......i.......K|
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0020: 00 00 00 07 00 00 01 4c 00 00 00 f8 00 00 00 8f |.......L........|
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0030: 00 00 00 c0 00 00 00 a7 00 00 00 89 00 00 01 46 |...............F|
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0040: 00 00 00 92 00 00 01 bc 00 00 00 71 00 00 00 ac |...........q....|
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0050: 00 00 00 af 00 00 00 b4 00 00 00 34 00 00 01 ca |...........4....|
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0060: 00 00 00 23 00 00 01 45 00 00 00 2d 00 00 00 b2 |...#...E...-....|
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0070: 00 00 00 56 00 00 01 0f 00 00 00 4e 00 00 02 4c |...V.......N...L|
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0080: 00 00 00 e7 00 00 00 cd 00 00 01 5b 00 00 00 78 |...........[...x|
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0090: 00 00 00 e3 00 00 01 8e 00 00 00 4f 00 00 00 b1 |...........O....|
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00a0: 00 00 00 30 00 00 00 11 00 00 00 25 00 00 00 d2 |...0.......%....|
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00b0: 00 00 00 ec 00 00 00 69 00 00 01 2b 00 00 01 2e |.......i...+....|
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00c0: 00 00 00 aa 00 00 00 15 00 00 00 3a 00 00 01 4e |...........:...N|
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00d0: 00 00 00 4d 00 00 00 9d 00 00 00 8e 00 00 00 a4 |...M............|
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00e0: 00 00 00 c3 00 00 00 eb 00 00 00 29 00 00 00 ad |...........)....|
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00f0: 00 00 01 3a 00 00 01 32 00 00 00 04 00 00 00 53 |...:...2.......S|
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#else
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$ f --sha256 .hg/store/00changelog-*.nd
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.hg/store/00changelog-????????????????.nd: sha256=b961925120e1c9bc345c199b2cc442abc477029fdece37ef9d99cbe59c0558b7 (glob)
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$ hg debugnodemap --dump-new | f --sha256 --size
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size=122880, sha256=b961925120e1c9bc345c199b2cc442abc477029fdece37ef9d99cbe59c0558b7
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$ hg debugnodemap --dump-disk | f --sha256 --bytes=256 --hexdump --size
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size=122880, sha256=b961925120e1c9bc345c199b2cc442abc477029fdece37ef9d99cbe59c0558b7
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0000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
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0010: ff ff ff ff ff ff ff ff ff ff fa c2 ff ff ff ff |................|
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0020: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
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0030: ff ff ff ff ff ff ed b3 ff ff ff ff ff ff ff ff |................|
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0040: ff ff ff ff ff ff ee 34 00 00 00 00 ff ff ff ff |.......4........|
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0050: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
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0060: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
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0070: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
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0080: ff ff ff ff ff ff f8 50 ff ff ff ff ff ff ff ff |.......P........|
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0090: ff ff ff ff ff ff ff ff ff ff ec c7 ff ff ff ff |................|
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00a0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
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00b0: ff ff ff ff ff ff fa be ff ff f2 fc ff ff ff ff |................|
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00c0: ff ff ff ff ff ff ef ea ff ff ff ff ff ff f9 17 |................|
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00d0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
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00e0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
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00f0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
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#endif
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$ hg debugnodemap --check
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revision in index: 5001
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revision in nodemap: 5001
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add a new commit
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$ hg up
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0 files updated, 0 files merged, 0 files removed, 0 files unresolved
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$ echo foo > foo
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$ hg add foo
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$ hg ci -m 'foo'
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#if no-pure no-rust
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$ hg debugnodemap --metadata
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uid: ???????????????? (glob)
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tip-rev: 5001
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tip-node: 2dd9b5258caa46469ff07d4a3da1eb3529a51f49
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data-length: 122880
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data-unused: 0
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#else
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$ hg debugnodemap --metadata
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uid: ???????????????? (glob)
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tip-rev: 5001
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tip-node: 2dd9b5258caa46469ff07d4a3da1eb3529a51f49
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data-length: 123072
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data-unused: 192
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#endif
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$ f --size .hg/store/00changelog.n
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.hg/store/00changelog.n: size=70
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(The pure code use the debug code that perform incremental update, the C code reencode from scratch)
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#if pure
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$ f --sha256 .hg/store/00changelog-*.nd --size
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.hg/store/00changelog-????????????????.nd: size=123072, sha256=136472751566c8198ff09e306a7d2f9bd18bd32298d614752b73da4d6df23340 (glob)
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#endif
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#if rust
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$ f --sha256 .hg/store/00changelog-*.nd --size
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.hg/store/00changelog-????????????????.nd: size=123072, sha256=ccc8a43310ace13812fcc648683e259346754ef934c12dd238cf9b7fadfe9a4b (glob)
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#endif
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#if no-pure no-rust
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$ f --sha256 .hg/store/00changelog-*.nd --size
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.hg/store/00changelog-????????????????.nd: size=122880, sha256=bfafebd751c4f6d116a76a37a1dee2a251747affe7efbcc4f4842ccc746d4db9 (glob)
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#endif
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$ hg debugnodemap --check
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revision in index: 5002
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revision in nodemap: 5002
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Test code path without mmap
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---------------------------
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$ echo bar > bar
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$ hg add bar
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$ hg ci -m 'bar' --config experimental.exp-persistent-nodemap.mmap=no
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$ hg debugnodemap --check --config experimental.exp-persistent-nodemap.mmap=yes
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revision in index: 5003
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revision in nodemap: 5003
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$ hg debugnodemap --check --config experimental.exp-persistent-nodemap.mmap=no
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revision in index: 5003
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revision in nodemap: 5003
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#if pure
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$ hg debugnodemap --metadata
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uid: ???????????????? (glob)
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tip-rev: 5002
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tip-node: 6ce944fafcee85af91f29ea5b51654cc6101ad7e
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data-length: 123328
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data-unused: 384
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$ f --sha256 .hg/store/00changelog-*.nd --size
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.hg/store/00changelog-????????????????.nd: size=123328, sha256=10d26e9776b6596af0f89143a54eba8cc581e929c38242a02a7b0760698c6c70 (glob)
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#endif
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#if rust
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$ hg debugnodemap --metadata
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uid: ???????????????? (glob)
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tip-rev: 5002
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tip-node: 6ce944fafcee85af91f29ea5b51654cc6101ad7e
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data-length: 123328
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data-unused: 384
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$ f --sha256 .hg/store/00changelog-*.nd --size
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.hg/store/00changelog-????????????????.nd: size=123328, sha256=081eec9eb6708f2bf085d939b4c97bc0b6762bc8336bc4b93838f7fffa1516bf (glob)
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#endif
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#if no-pure no-rust
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$ hg debugnodemap --metadata
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uid: ???????????????? (glob)
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tip-rev: 5002
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tip-node: 6ce944fafcee85af91f29ea5b51654cc6101ad7e
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data-length: 122944
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data-unused: 0
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$ f --sha256 .hg/store/00changelog-*.nd --size
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.hg/store/00changelog-????????????????.nd: size=122944, sha256=755976b22b64ab680401b45395953504e64e7fa8c31ac570f58dee21e15f9bc0 (glob)
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#endif
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Test force warming the cache
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$ rm .hg/store/00changelog.n
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$ hg debugnodemap --metadata
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$ hg debugupdatecache
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#if pure
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$ hg debugnodemap --metadata
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uid: ???????????????? (glob)
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tip-rev: 5002
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tip-node: 6ce944fafcee85af91f29ea5b51654cc6101ad7e
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data-length: 122944
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data-unused: 0
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#else
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$ hg debugnodemap --metadata
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uid: ???????????????? (glob)
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tip-rev: 5002
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tip-node: 6ce944fafcee85af91f29ea5b51654cc6101ad7e
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data-length: 122944
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data-unused: 0
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#endif
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Check out of sync nodemap
|
|
|
=========================
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First copy old data on the side.
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|
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$ mkdir ../tmp-copies
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$ cp .hg/store/00changelog-????????????????.nd .hg/store/00changelog.n ../tmp-copies
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|
Nodemap lagging behind
|
|
|
----------------------
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make a new commit
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|
|
$ echo bar2 > bar
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|
$ hg ci -m 'bar2'
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$ NODE=`hg log -r tip -T '{node}\n'`
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$ hg log -r "$NODE" -T '{rev}\n'
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5003
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If the nodemap is lagging behind, it can catch up fine
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$ hg debugnodemap --metadata
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uid: ???????????????? (glob)
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tip-rev: 5003
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tip-node: 5c049e9c4a4af159bdcd65dce1b6bf303a0da6cf
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|
data-length: 123200 (pure !)
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|
data-length: 123200 (rust !)
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|
data-length: 122944 (no-rust no-pure !)
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|
data-unused: 256 (pure !)
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data-unused: 256 (rust !)
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data-unused: 0 (no-rust no-pure !)
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|
|
$ cp -f ../tmp-copies/* .hg/store/
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$ hg debugnodemap --metadata
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uid: ???????????????? (glob)
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tip-rev: 5002
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|
|
tip-node: 6ce944fafcee85af91f29ea5b51654cc6101ad7e
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data-length: 122944
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data-unused: 0
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$ hg log -r "$NODE" -T '{rev}\n'
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5003
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|
changelog altered
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-----------------
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If the nodemap is not gated behind a requirements, an unaware client can alter
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the repository so the revlog used to generate the nodemap is not longer
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compatible with the persistent nodemap. We need to detect that.
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$ hg up "$NODE~5"
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0 files updated, 0 files merged, 2 files removed, 0 files unresolved
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$ echo bar > babar
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$ hg add babar
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$ hg ci -m 'babar'
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created new head
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$ OTHERNODE=`hg log -r tip -T '{node}\n'`
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$ hg log -r "$OTHERNODE" -T '{rev}\n'
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5004
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$ hg --config extensions.strip= strip --rev "$NODE~1" --no-backup
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the nodemap should detect the changelog have been tampered with and recover.
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$ hg debugnodemap --metadata
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uid: ???????????????? (glob)
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|
tip-rev: 5002
|
|
|
tip-node: 42bf3068c7ddfdfded53c4eb11d02266faeebfee
|
|
|
data-length: 123456 (pure !)
|
|
|
data-length: 246464 (rust !)
|
|
|
data-length: 123008 (no-pure no-rust !)
|
|
|
data-unused: 448 (pure !)
|
|
|
data-unused: 123904 (rust !)
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|
data-unused: 0 (no-pure no-rust !)
|
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|
|
$ cp -f ../tmp-copies/* .hg/store/
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$ hg debugnodemap --metadata
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uid: ???????????????? (glob)
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tip-rev: 5002
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|
tip-node: 6ce944fafcee85af91f29ea5b51654cc6101ad7e
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|
data-length: 122944
|
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|
data-unused: 0
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|
|
$ hg log -r "$OTHERNODE" -T '{rev}\n'
|
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5002
|
|
|
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|
Check transaction related property
|
|
|
==================================
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|
|
An up to date nodemap should be available to shell hooks,
|
|
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|
|
$ echo dsljfl > a
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|
|
$ hg add a
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|
|
$ hg ci -m a
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|
|
$ hg debugnodemap --metadata
|
|
|
uid: ???????????????? (glob)
|
|
|
tip-rev: 5003
|
|
|
tip-node: c91af76d172f1053cca41b83f7c2e4e514fe2bcf
|
|
|
data-length: 123008
|
|
|
data-unused: 0
|
|
|
$ echo babar2 > babar
|
|
|
$ hg ci -m 'babar2' --config "hooks.pretxnclose.nodemap-test=hg debugnodemap --metadata"
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|
|
uid: ???????????????? (glob)
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|
|
tip-rev: 5004
|
|
|
tip-node: ba87cd9559559e4b91b28cb140d003985315e031
|
|
|
data-length: 123328 (pure !)
|
|
|
data-length: 123328 (rust !)
|
|
|
data-length: 123136 (no-pure no-rust !)
|
|
|
data-unused: 192 (pure !)
|
|
|
data-unused: 192 (rust !)
|
|
|
data-unused: 0 (no-pure no-rust !)
|
|
|
$ hg debugnodemap --metadata
|
|
|
uid: ???????????????? (glob)
|
|
|
tip-rev: 5004
|
|
|
tip-node: ba87cd9559559e4b91b28cb140d003985315e031
|
|
|
data-length: 123328 (pure !)
|
|
|
data-length: 123328 (rust !)
|
|
|
data-length: 123136 (no-pure no-rust !)
|
|
|
data-unused: 192 (pure !)
|
|
|
data-unused: 192 (rust !)
|
|
|
data-unused: 0 (no-pure no-rust !)
|
|
|
|
