tests/test-persistent-nodemap.t

nodemap: test various corruption scenario for the persistent nodemap

Corruption can happens in the wild, either because some of our code is buggy or
because repository were shared/transfered in a strange manners.

Currently one of the corruption case (not enough data) lead to a crash. We add
explicit tests for theses cases.

Differential Revision: https://phab.mercurial-scm.org/D10457

===================================
Test the persistent on-disk nodemap
===================================


#if no-rust

  $ cat << EOF >> $HGRCPATH
  > [format]
  > use-persistent-nodemap=yes
  > [devel]
  > persistent-nodemap=yes
  > EOF

#endif

  $ hg init test-repo --config storage.revlog.persistent-nodemap.slow-path=allow
  $ cd test-repo

Check handling of the default slow-path value

#if no-pure no-rust

  $ hg id
  abort: accessing `persistent-nodemap` repository without associated fast implementation.
  (check `hg help config.format.use-persistent-nodemap` for details)
  [255]

Unlock further check (we are here to test the feature)

  $ cat << EOF >> $HGRCPATH
  > [storage]
  > # to avoid spamming the test
  > revlog.persistent-nodemap.slow-path=allow
  > EOF

#endif

#if rust

Regression test for a previous bug in Rust/C FFI for the `Revlog_CAPI` capsule:
in places where `mercurial/cext/revlog.c` function signatures use `Py_ssize_t`
(64 bits on Linux x86_64), corresponding declarations in `rust/hg-cpython/src/cindex.rs`
incorrectly used `libc::c_int` (32 bits).
As a result, -1 passed from Rust for the null revision became 4294967295 in C.

  $ hg log -r 00000000
  changeset:   -1:000000000000
  tag:         tip
  user:        
  date:        Thu Jan 01 00:00:00 1970 +0000
  

#endif


  $ hg debugformat
  format-variant     repo
  fncache:            yes
  dotencode:          yes
  generaldelta:       yes
  share-safe:          no
  sparserevlog:       yes
  persistent-nodemap: yes
  copies-sdc:          no
  revlog-v2:           no
  plain-cl-delta:     yes
  compression:        zlib (no-zstd !)
  compression:        zstd (zstd !)
  compression-level:  default
  $ hg debugbuilddag .+5000 --new-file

  $ hg debugnodemap --metadata
  uid: ???????????????? (glob)
  tip-rev: 5000
  tip-node: 6b02b8c7b96654c25e86ba69eda198d7e6ad8b3c
  data-length: 121088
  data-unused: 0
  data-unused: 0.000%
  $ f --size .hg/store/00changelog.n
  .hg/store/00changelog.n: size=70

Simple lookup works

  $ ANYNODE=`hg log --template '{node|short}\n' --rev tip`
  $ hg log -r "$ANYNODE" --template '{rev}\n'
  5000


#if rust

  $ f --sha256 .hg/store/00changelog-*.nd
  .hg/store/00changelog-????????????????.nd: sha256=2e029d3200bd1a986b32784fc2ef1a3bd60dc331f025718bcf5ff44d93f026fd (glob)

  $ f --sha256 .hg/store/00manifest-*.nd
  .hg/store/00manifest-????????????????.nd: sha256=97117b1c064ea2f86664a124589e47db0e254e8d34739b5c5cc5bf31c9da2b51 (glob)
  $ hg debugnodemap --dump-new | f --sha256 --size
  size=121088, sha256=2e029d3200bd1a986b32784fc2ef1a3bd60dc331f025718bcf5ff44d93f026fd
  $ hg debugnodemap --dump-disk | f --sha256 --bytes=256 --hexdump --size
  size=121088, sha256=2e029d3200bd1a986b32784fc2ef1a3bd60dc331f025718bcf5ff44d93f026fd
  0000: 00 00 00 91 00 00 00 20 00 00 00 bb 00 00 00 e7 |....... ........|
  0010: 00 00 00 66 00 00 00 a1 00 00 01 13 00 00 01 22 |...f..........."|
  0020: 00 00 00 23 00 00 00 fc 00 00 00 ba 00 00 00 5e |...#...........^|
  0030: 00 00 00 df 00 00 01 4e 00 00 01 65 00 00 00 ab |.......N...e....|
  0040: 00 00 00 a9 00 00 00 95 00 00 00 73 00 00 00 38 |...........s...8|
  0050: 00 00 00 cc 00 00 00 92 00 00 00 90 00 00 00 69 |...............i|
  0060: 00 00 00 ec 00 00 00 8d 00 00 01 4f 00 00 00 12 |...........O....|
  0070: 00 00 02 0c 00 00 00 77 00 00 00 9c 00 00 00 8f |.......w........|
  0080: 00 00 00 d5 00 00 00 6b 00 00 00 48 00 00 00 b3 |.......k...H....|
  0090: 00 00 00 e5 00 00 00 b5 00 00 00 8e 00 00 00 ad |................|
  00a0: 00 00 00 7b 00 00 00 7c 00 00 00 0b 00 00 00 2b |...{...|.......+|
  00b0: 00 00 00 c6 00 00 00 1e 00 00 01 08 00 00 00 11 |................|
  00c0: 00 00 01 30 00 00 00 26 00 00 01 9c 00 00 00 35 |...0...&.......5|
  00d0: 00 00 00 b8 00 00 01 31 00 00 00 2c 00 00 00 55 |.......1...,...U|
  00e0: 00 00 00 8a 00 00 00 9a 00 00 00 0c 00 00 01 1e |................|
  00f0: 00 00 00 a4 00 00 00 83 00 00 00 c9 00 00 00 8c |................|


#else

  $ f --sha256 .hg/store/00changelog-*.nd
  .hg/store/00changelog-????????????????.nd: sha256=f544f5462ff46097432caf6d764091f6d8c46d6121be315ead8576d548c9dd79 (glob)
  $ hg debugnodemap --dump-new | f --sha256 --size
  size=121088, sha256=f544f5462ff46097432caf6d764091f6d8c46d6121be315ead8576d548c9dd79
  $ hg debugnodemap --dump-disk | f --sha256 --bytes=256 --hexdump --size
  size=121088, sha256=f544f5462ff46097432caf6d764091f6d8c46d6121be315ead8576d548c9dd79
  0000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
  0010: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
  0020: ff ff ff ff ff ff f5 06 ff ff ff ff ff ff f3 e7 |................|
  0030: ff ff ef ca ff ff ff ff ff ff ff ff ff ff ff ff |................|
  0040: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
  0050: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ed 08 |................|
  0060: ff ff ed 66 ff ff ff ff ff ff ff ff ff ff ff ff |...f............|
  0070: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
  0080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
  0090: ff ff ff ff ff ff ff ff ff ff ff ff ff ff f6 ed |................|
  00a0: ff ff ff ff ff ff fe 61 ff ff ff ff ff ff ff ff |.......a........|
  00b0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
  00c0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
  00d0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
  00e0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff f1 02 |................|
  00f0: ff ff ff ff ff ff ed 1b ff ff ff ff ff ff ff ff |................|

#endif

  $ hg debugnodemap --check
  revision in index:   5001
  revision in nodemap: 5001

add a new commit

  $ hg up
  5001 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ echo foo > foo
  $ hg add foo


Check slow-path config value handling
-------------------------------------

#if no-pure no-rust

  $ hg id --config "storage.revlog.persistent-nodemap.slow-path=invalid-value"
  unknown value for config "storage.revlog.persistent-nodemap.slow-path": "invalid-value"
  falling back to default value: abort
  abort: accessing `persistent-nodemap` repository without associated fast implementation.
  (check `hg help config.format.use-persistent-nodemap` for details)
  [255]

  $ hg log -r . --config "storage.revlog.persistent-nodemap.slow-path=warn"
  warning: accessing `persistent-nodemap` repository without associated fast implementation.
  (check `hg help config.format.use-persistent-nodemap` for details)
  changeset:   5000:6b02b8c7b966
  tag:         tip
  user:        debugbuilddag
  date:        Thu Jan 01 01:23:20 1970 +0000
  summary:     r5000
  
  $ hg ci -m 'foo' --config "storage.revlog.persistent-nodemap.slow-path=abort"
  abort: accessing `persistent-nodemap` repository without associated fast implementation.
  (check `hg help config.format.use-persistent-nodemap` for details)
  [255]

#else

  $ hg id --config "storage.revlog.persistent-nodemap.slow-path=invalid-value"
  unknown value for config "storage.revlog.persistent-nodemap.slow-path": "invalid-value"
  falling back to default value: abort
  6b02b8c7b966+ tip

#endif

  $ hg ci -m 'foo'

#if no-pure no-rust
  $ hg debugnodemap --metadata
  uid: ???????????????? (glob)
  tip-rev: 5001
  tip-node: 16395c3cf7e231394735e6b1717823ada303fb0c
  data-length: 121088
  data-unused: 0
  data-unused: 0.000%
#else
  $ hg debugnodemap --metadata
  uid: ???????????????? (glob)
  tip-rev: 5001
  tip-node: 16395c3cf7e231394735e6b1717823ada303fb0c
  data-length: 121344
  data-unused: 256
  data-unused: 0.211%
#endif

  $ f --size .hg/store/00changelog.n
  .hg/store/00changelog.n: size=70

(The pure code use the debug code that perform incremental update, the C code reencode from scratch)

#if pure
  $ f --sha256 .hg/store/00changelog-*.nd --size
  .hg/store/00changelog-????????????????.nd: size=121344, sha256=cce54c5da5bde3ad72a4938673ed4064c86231b9c64376b082b163fdb20f8f66 (glob)
#endif

#if rust
  $ f --sha256 .hg/store/00changelog-*.nd --size
  .hg/store/00changelog-????????????????.nd: size=121344, sha256=952b042fcf614ceb37b542b1b723e04f18f83efe99bee4e0f5ccd232ef470e58 (glob)
#endif

#if no-pure no-rust
  $ f --sha256 .hg/store/00changelog-*.nd --size
  .hg/store/00changelog-????????????????.nd: size=121088, sha256=df7c06a035b96cb28c7287d349d603baef43240be7736fe34eea419a49702e17 (glob)
#endif

  $ hg debugnodemap --check
  revision in index:   5002
  revision in nodemap: 5002

Test code path without mmap
---------------------------

  $ echo bar > bar
  $ hg add bar
  $ hg ci -m 'bar' --config storage.revlog.persistent-nodemap.mmap=no

  $ hg debugnodemap --check --config storage.revlog.persistent-nodemap.mmap=yes
  revision in index:   5003
  revision in nodemap: 5003
  $ hg debugnodemap --check --config storage.revlog.persistent-nodemap.mmap=no
  revision in index:   5003
  revision in nodemap: 5003


#if pure
  $ hg debugnodemap --metadata
  uid: ???????????????? (glob)
  tip-rev: 5002
  tip-node: 880b18d239dfa9f632413a2071bfdbcc4806a4fd
  data-length: 121600
  data-unused: 512
  data-unused: 0.421%
  $ f --sha256 .hg/store/00changelog-*.nd --size
  .hg/store/00changelog-????????????????.nd: size=121600, sha256=def52503d049ccb823974af313a98a935319ba61f40f3aa06a8be4d35c215054 (glob)
#endif
#if rust
  $ hg debugnodemap --metadata
  uid: ???????????????? (glob)
  tip-rev: 5002
  tip-node: 880b18d239dfa9f632413a2071bfdbcc4806a4fd
  data-length: 121600
  data-unused: 512
  data-unused: 0.421%
  $ f --sha256 .hg/store/00changelog-*.nd --size
  .hg/store/00changelog-????????????????.nd: size=121600, sha256=dacf5b5f1d4585fee7527d0e67cad5b1ba0930e6a0928f650f779aefb04ce3fb (glob)
#endif
#if no-pure no-rust
  $ hg debugnodemap --metadata
  uid: ???????????????? (glob)
  tip-rev: 5002
  tip-node: 880b18d239dfa9f632413a2071bfdbcc4806a4fd
  data-length: 121088
  data-unused: 0
  data-unused: 0.000%
  $ f --sha256 .hg/store/00changelog-*.nd --size
  .hg/store/00changelog-????????????????.nd: size=121088, sha256=59fcede3e3cc587755916ceed29e3c33748cd1aa7d2f91828ac83e7979d935e8 (glob)
#endif

Test force warming the cache

  $ rm .hg/store/00changelog.n
  $ hg debugnodemap --metadata
  $ hg debugupdatecache
#if pure
  $ hg debugnodemap --metadata
  uid: ???????????????? (glob)
  tip-rev: 5002
  tip-node: 880b18d239dfa9f632413a2071bfdbcc4806a4fd
  data-length: 121088
  data-unused: 0
  data-unused: 0.000%
#else
  $ hg debugnodemap --metadata
  uid: ???????????????? (glob)
  tip-rev: 5002
  tip-node: 880b18d239dfa9f632413a2071bfdbcc4806a4fd
  data-length: 121088
  data-unused: 0
  data-unused: 0.000%
#endif

Check out of sync nodemap
=========================

First copy old data on the side.

  $ mkdir ../tmp-copies
  $ cp .hg/store/00changelog-????????????????.nd .hg/store/00changelog.n ../tmp-copies

Nodemap lagging behind
----------------------

make a new commit

  $ echo bar2 > bar
  $ hg ci -m 'bar2'
  $ NODE=`hg log -r tip -T '{node}\n'`
  $ hg log -r "$NODE" -T '{rev}\n'
  5003

If the nodemap is lagging behind, it can catch up fine

  $ hg debugnodemap --metadata
  uid: ???????????????? (glob)
  tip-rev: 5003
  tip-node: c9329770f979ade2d16912267c38ba5f82fd37b3
  data-length: 121344 (pure !)
  data-length: 121344 (rust !)
  data-length: 121152 (no-rust no-pure !)
  data-unused: 192 (pure !)
  data-unused: 192 (rust !)
  data-unused: 0 (no-rust no-pure !)
  data-unused: 0.158% (pure !)
  data-unused: 0.158% (rust !)
  data-unused: 0.000% (no-rust no-pure !)
  $ cp -f ../tmp-copies/* .hg/store/
  $ hg debugnodemap --metadata
  uid: ???????????????? (glob)
  tip-rev: 5002
  tip-node: 880b18d239dfa9f632413a2071bfdbcc4806a4fd
  data-length: 121088
  data-unused: 0
  data-unused: 0.000%
  $ hg log -r "$NODE" -T '{rev}\n'
  5003

changelog altered
-----------------

If the nodemap is not gated behind a requirements, an unaware client can alter
the repository so the revlog used to generate the nodemap is not longer
compatible with the persistent nodemap. We need to detect that.

  $ hg up "$NODE~5"
  0 files updated, 0 files merged, 4 files removed, 0 files unresolved
  $ echo bar > babar
  $ hg add babar
  $ hg ci -m 'babar'
  created new head
  $ OTHERNODE=`hg log -r tip -T '{node}\n'`
  $ hg log -r "$OTHERNODE" -T '{rev}\n'
  5004

  $ hg --config extensions.strip= strip --rev "$NODE~1" --no-backup

the nodemap should detect the changelog have been tampered with and recover.

  $ hg debugnodemap --metadata
  uid: ???????????????? (glob)
  tip-rev: 5002
  tip-node: b355ef8adce0949b8bdf6afc72ca853740d65944
  data-length: 121536 (pure !)
  data-length: 121088 (rust !)
  data-length: 121088 (no-pure no-rust !)
  data-unused: 448 (pure !)
  data-unused: 0 (rust !)
  data-unused: 0 (no-pure no-rust !)
  data-unused: 0.000% (rust !)
  data-unused: 0.369% (pure !)
  data-unused: 0.000% (no-pure no-rust !)

  $ cp -f ../tmp-copies/* .hg/store/
  $ hg debugnodemap --metadata
  uid: ???????????????? (glob)
  tip-rev: 5002
  tip-node: 880b18d239dfa9f632413a2071bfdbcc4806a4fd
  data-length: 121088
  data-unused: 0
  data-unused: 0.000%
  $ hg log -r "$OTHERNODE" -T '{rev}\n'
  5002

missing data file
-----------------

  $ UUID=`hg debugnodemap --metadata| grep 'uid:' | \
  > sed 's/uid: //'`
  $ FILE=.hg/store/00changelog-"${UUID}".nd
  $ mv $FILE ../tmp-data-file
  $ cp .hg/store/00changelog.n ../tmp-docket

mercurial don't crash

  $ hg log -r .
  changeset:   5002:b355ef8adce0
  tag:         tip
  parent:      4998:d918ad6d18d3
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     babar
  
  $ hg debugnodemap --metadata

  $ hg debugupdatecache
  $ hg debugnodemap --metadata
  uid: * (glob)
  tip-rev: 5002
  tip-node: b355ef8adce0949b8bdf6afc72ca853740d65944
  data-length: 121088
  data-unused: 0
  data-unused: 0.000%
  $ mv ../tmp-data-file $FILE
  $ mv ../tmp-docket .hg/store/00changelog.n

Check transaction related property
==================================

An up to date nodemap should be available to shell hooks,

  $ echo dsljfl > a
  $ hg add a
  $ hg ci -m a
  $ hg debugnodemap --metadata
  uid: ???????????????? (glob)
  tip-rev: 5003
  tip-node: a52c5079765b5865d97b993b303a18740113bbb2
  data-length: 121088
  data-unused: 0
  data-unused: 0.000%
  $ echo babar2 > babar
  $ hg ci -m 'babar2' --config "hooks.pretxnclose.nodemap-test=hg debugnodemap --metadata"
  uid: ???????????????? (glob)
  tip-rev: 5004
  tip-node: 2f5fb1c06a16834c5679d672e90da7c5f3b1a984
  data-length: 121280 (pure !)
  data-length: 121280 (rust !)
  data-length: 121088 (no-pure no-rust !)
  data-unused: 192 (pure !)
  data-unused: 192 (rust !)
  data-unused: 0 (no-pure no-rust !)
  data-unused: 0.158% (pure !)
  data-unused: 0.158% (rust !)
  data-unused: 0.000% (no-pure no-rust !)
  $ hg debugnodemap --metadata
  uid: ???????????????? (glob)
  tip-rev: 5004
  tip-node: 2f5fb1c06a16834c5679d672e90da7c5f3b1a984
  data-length: 121280 (pure !)
  data-length: 121280 (rust !)
  data-length: 121088 (no-pure no-rust !)
  data-unused: 192 (pure !)
  data-unused: 192 (rust !)
  data-unused: 0 (no-pure no-rust !)
  data-unused: 0.158% (pure !)
  data-unused: 0.158% (rust !)
  data-unused: 0.000% (no-pure no-rust !)

Another process does not see the pending nodemap content during run.

  $ PATH=$RUNTESTDIR/testlib/:$PATH
  $ echo qpoasp > a
  $ hg ci -m a2 \
  > --config "hooks.pretxnclose=wait-on-file 20 sync-repo-read sync-txn-pending" \
  > --config "hooks.txnclose=touch sync-txn-close" > output.txt 2>&1 &

(read the repository while the commit transaction is pending)

  $ wait-on-file 20 sync-txn-pending && \
  > hg debugnodemap --metadata && \
  > wait-on-file 20 sync-txn-close sync-repo-read
  uid: ???????????????? (glob)
  tip-rev: 5004
  tip-node: 2f5fb1c06a16834c5679d672e90da7c5f3b1a984
  data-length: 121280 (pure !)
  data-length: 121280 (rust !)
  data-length: 121088 (no-pure no-rust !)
  data-unused: 192 (pure !)
  data-unused: 192 (rust !)
  data-unused: 0 (no-pure no-rust !)
  data-unused: 0.158% (pure !)
  data-unused: 0.158% (rust !)
  data-unused: 0.000% (no-pure no-rust !)
  $ hg debugnodemap --metadata
  uid: ???????????????? (glob)
  tip-rev: 5005
  tip-node: 90d5d3ba2fc47db50f712570487cb261a68c8ffe
  data-length: 121536 (pure !)
  data-length: 121536 (rust !)
  data-length: 121088 (no-pure no-rust !)
  data-unused: 448 (pure !)
  data-unused: 448 (rust !)
  data-unused: 0 (no-pure no-rust !)
  data-unused: 0.369% (pure !)
  data-unused: 0.369% (rust !)
  data-unused: 0.000% (no-pure no-rust !)

  $ cat output.txt

Check that a failing transaction will properly revert the data

  $ echo plakfe > a
  $ f --size --sha256 .hg/store/00changelog-*.nd
  .hg/store/00changelog-????????????????.nd: size=121536, sha256=bb414468d225cf52d69132e1237afba34d4346ee2eb81b505027e6197b107f03 (glob) (pure !)
  .hg/store/00changelog-????????????????.nd: size=121536, sha256=909ac727bc4d1c0fda5f7bff3c620c98bd4a2967c143405a1503439e33b377da (glob) (rust !)
  .hg/store/00changelog-????????????????.nd: size=121088, sha256=342d36d30d86dde67d3cb6c002606c4a75bcad665595d941493845066d9c8ee0 (glob) (no-pure no-rust !)
  $ hg ci -m a3 --config "extensions.abort=$RUNTESTDIR/testlib/crash_transaction_late.py"
  transaction abort!
  rollback completed
  abort: This is a late abort
  [255]
  $ hg debugnodemap --metadata
  uid: ???????????????? (glob)
  tip-rev: 5005
  tip-node: 90d5d3ba2fc47db50f712570487cb261a68c8ffe
  data-length: 121536 (pure !)
  data-length: 121536 (rust !)
  data-length: 121088 (no-pure no-rust !)
  data-unused: 448 (pure !)
  data-unused: 448 (rust !)
  data-unused: 0 (no-pure no-rust !)
  data-unused: 0.369% (pure !)
  data-unused: 0.369% (rust !)
  data-unused: 0.000% (no-pure no-rust !)
  $ f --size --sha256 .hg/store/00changelog-*.nd
  .hg/store/00changelog-????????????????.nd: size=121536, sha256=bb414468d225cf52d69132e1237afba34d4346ee2eb81b505027e6197b107f03 (glob) (pure !)
  .hg/store/00changelog-????????????????.nd: size=121536, sha256=909ac727bc4d1c0fda5f7bff3c620c98bd4a2967c143405a1503439e33b377da (glob) (rust !)
  .hg/store/00changelog-????????????????.nd: size=121088, sha256=342d36d30d86dde67d3cb6c002606c4a75bcad665595d941493845066d9c8ee0 (glob) (no-pure no-rust !)

Check that removing content does not confuse the nodemap
--------------------------------------------------------

removing data with rollback

  $ echo aso > a
  $ hg ci -m a4
  $ hg rollback
  repository tip rolled back to revision 5005 (undo commit)
  working directory now based on revision 5005
  $ hg id -r .
  90d5d3ba2fc4 tip

roming data with strip

  $ echo aso > a
  $ hg ci -m a4
  $ hg --config extensions.strip= strip -r . --no-backup
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg id -r . --traceback
  90d5d3ba2fc4 tip

Test upgrade / downgrade
========================

downgrading

  $ cat << EOF >> .hg/hgrc
  > [format]
  > use-persistent-nodemap=no
  > EOF
  $ hg debugformat -v
  format-variant     repo config default
  fncache:            yes    yes     yes
  dotencode:          yes    yes     yes
  generaldelta:       yes    yes     yes
  share-safe:          no     no      no
  sparserevlog:       yes    yes     yes
  persistent-nodemap: yes     no      no
  copies-sdc:          no     no      no
  revlog-v2:           no     no      no
  plain-cl-delta:     yes    yes     yes
  compression:        zlib   zlib    zlib (no-zstd !)
  compression:        zstd   zstd    zstd (zstd !)
  compression-level:  default default default
  $ hg debugupgraderepo --run --no-backup
  upgrade will perform the following actions:
  
  requirements
     preserved: dotencode, fncache, generaldelta, revlogv1, sparserevlog, store (no-zstd !)
     preserved: dotencode, fncache, generaldelta, revlog-compression-zstd, revlogv1, sparserevlog, store (zstd !)
     removed: persistent-nodemap
  
  processed revlogs:
    - all-filelogs
    - changelog
    - manifest
  
  beginning upgrade...
  repository locked and read-only
  creating temporary repository to stage upgraded data: $TESTTMP/test-repo/.hg/upgrade.* (glob)
  (it is safe to interrupt this process any time before data migration completes)
  downgrading repository to not use persistent nodemap feature
  removing temporary repository $TESTTMP/test-repo/.hg/upgrade.* (glob)
  $ ls -1 .hg/store/ | egrep '00(changelog|manifest)(\.n|-.*\.nd)'
  00changelog-*.nd (glob)
  00manifest-*.nd (glob)
  undo.backup.00changelog.n
  undo.backup.00manifest.n
  $ hg debugnodemap --metadata


upgrading

  $ cat << EOF >> .hg/hgrc
  > [format]
  > use-persistent-nodemap=yes
  > EOF
  $ hg debugformat -v
  format-variant     repo config default
  fncache:            yes    yes     yes
  dotencode:          yes    yes     yes
  generaldelta:       yes    yes     yes
  share-safe:          no     no      no
  sparserevlog:       yes    yes     yes
  persistent-nodemap:  no    yes      no
  copies-sdc:          no     no      no
  revlog-v2:           no     no      no
  plain-cl-delta:     yes    yes     yes
  compression:        zlib   zlib    zlib (no-zstd !)
  compression:        zstd   zstd    zstd (zstd !)
  compression-level:  default default default
  $ hg debugupgraderepo --run --no-backup
  upgrade will perform the following actions:
  
  requirements
     preserved: dotencode, fncache, generaldelta, revlogv1, sparserevlog, store (no-zstd !)
     preserved: dotencode, fncache, generaldelta, revlog-compression-zstd, revlogv1, sparserevlog, store (zstd !)
     added: persistent-nodemap
  
  persistent-nodemap
     Speedup revision lookup by node id.
  
  processed revlogs:
    - all-filelogs
    - changelog
    - manifest
  
  beginning upgrade...
  repository locked and read-only
  creating temporary repository to stage upgraded data: $TESTTMP/test-repo/.hg/upgrade.* (glob)
  (it is safe to interrupt this process any time before data migration completes)
  upgrading repository to use persistent nodemap feature
  removing temporary repository $TESTTMP/test-repo/.hg/upgrade.* (glob)
  $ ls -1 .hg/store/ | egrep '00(changelog|manifest)(\.n|-.*\.nd)'
  00changelog-*.nd (glob)
  00changelog.n
  00manifest-*.nd (glob)
  00manifest.n
  undo.backup.00changelog.n
  undo.backup.00manifest.n

  $ hg debugnodemap --metadata
  uid: * (glob)
  tip-rev: 5005
  tip-node: 90d5d3ba2fc47db50f712570487cb261a68c8ffe
  data-length: 121088
  data-unused: 0
  data-unused: 0.000%

Running unrelated upgrade

  $ hg debugupgraderepo --run --no-backup --quiet --optimize re-delta-all
  upgrade will perform the following actions:
  
  requirements
     preserved: dotencode, fncache, generaldelta, persistent-nodemap, revlogv1, sparserevlog, store (no-zstd !)
     preserved: dotencode, fncache, generaldelta, persistent-nodemap, revlog-compression-zstd, revlogv1, sparserevlog, store (zstd !)
  
  optimisations: re-delta-all
  
  processed revlogs:
    - all-filelogs
    - changelog
    - manifest
  
  $ ls -1 .hg/store/ | egrep '00(changelog|manifest)(\.n|-.*\.nd)'
  00changelog-*.nd (glob)
  00changelog.n
  00manifest-*.nd (glob)
  00manifest.n

  $ hg debugnodemap --metadata
  uid: * (glob)
  tip-rev: 5005
  tip-node: 90d5d3ba2fc47db50f712570487cb261a68c8ffe
  data-length: 121088
  data-unused: 0
  data-unused: 0.000%

Persistent nodemap and local/streaming clone
============================================

  $ cd ..

standard clone
--------------

The persistent nodemap should exist after a streaming clone

  $ hg clone --pull --quiet -U test-repo standard-clone
  $ ls -1 standard-clone/.hg/store/ | egrep '00(changelog|manifest)(\.n|-.*\.nd)'
  00changelog-*.nd (glob)
  00changelog.n
  00manifest-*.nd (glob)
  00manifest.n
  $ hg -R standard-clone debugnodemap --metadata
  uid: * (glob)
  tip-rev: 5005
  tip-node: 90d5d3ba2fc47db50f712570487cb261a68c8ffe
  data-length: 121088
  data-unused: 0
  data-unused: 0.000%


local clone
------------

The persistent nodemap should exist after a streaming clone

  $ hg clone -U test-repo local-clone
  $ ls -1 local-clone/.hg/store/ | egrep '00(changelog|manifest)(\.n|-.*\.nd)'
  00changelog-*.nd (glob)
  00changelog.n
  00manifest-*.nd (glob)
  00manifest.n
  $ hg -R local-clone debugnodemap --metadata
  uid: * (glob)
  tip-rev: 5005
  tip-node: 90d5d3ba2fc47db50f712570487cb261a68c8ffe
  data-length: 121088
  data-unused: 0
  data-unused: 0.000%

Test various corruption case
============================

Missing datafile
----------------

Test behavior with a missing datafile

  $ hg clone --quiet --pull test-repo corruption-test-repo
  $ ls -1 corruption-test-repo/.hg/store/00changelog*
  corruption-test-repo/.hg/store/00changelog-*.nd (glob)
  corruption-test-repo/.hg/store/00changelog.d
  corruption-test-repo/.hg/store/00changelog.i
  corruption-test-repo/.hg/store/00changelog.n
  $ rm corruption-test-repo/.hg/store/00changelog*.nd
  $ hg log -R corruption-test-repo -r .
  changeset:   5005:90d5d3ba2fc4
  tag:         tip
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     a2
  
  $ ls -1 corruption-test-repo/.hg/store/00changelog*
  corruption-test-repo/.hg/store/00changelog.d
  corruption-test-repo/.hg/store/00changelog.i
  corruption-test-repo/.hg/store/00changelog.n

Truncated data file
-------------------

Test behavior with a too short datafile

rebuild the missing data
  $ hg -R corruption-test-repo debugupdatecache
  $ ls -1 corruption-test-repo/.hg/store/00changelog*
  corruption-test-repo/.hg/store/00changelog-*.nd (glob)
  corruption-test-repo/.hg/store/00changelog.d
  corruption-test-repo/.hg/store/00changelog.i
  corruption-test-repo/.hg/store/00changelog.n

truncate the file

  $ datafilepath=`ls corruption-test-repo/.hg/store/00changelog*.nd`
  $ f -s $datafilepath
  corruption-test-repo/.hg/store/00changelog-*.nd: size=121088 (glob)
  $ dd if=$datafilepath bs=1000 count=10 of=$datafilepath-tmp status=none
  $ mv $datafilepath-tmp $datafilepath
  $ f -s $datafilepath
  corruption-test-repo/.hg/store/00changelog-*.nd: size=10000 (glob)

Check that Mercurial reaction to this event

  $ hg -R corruption-test-repo log -r .
  abort: index 00changelog.i is corrupted
  [50]


stream clone
------------

The persistent nodemap should exist after a streaming clone

  $ hg clone -U --stream --config ui.ssh="\"$PYTHON\" \"$TESTDIR/dummyssh\"" ssh://user@dummy/test-repo stream-clone --debug | egrep '00(changelog|manifest)'
  adding [s] 00manifest.n (70 bytes)
  adding [s] 00manifest.d (452 KB) (no-zstd !)
  adding [s] 00manifest.d (491 KB) (zstd !)
  adding [s] 00manifest-*.nd (118 KB) (glob)
  adding [s] 00changelog.n (70 bytes)
  adding [s] 00changelog.d (360 KB) (no-zstd !)
  adding [s] 00changelog.d (368 KB) (zstd !)
  adding [s] 00changelog-*.nd (118 KB) (glob)
  adding [s] 00manifest.i (313 KB)
  adding [s] 00changelog.i (313 KB)
  $ ls -1 stream-clone/.hg/store/ | egrep '00(changelog|manifest)(\.n|-.*\.nd)'
  00changelog-*.nd (glob)
  00changelog.n
  00manifest-*.nd (glob)
  00manifest.n
  $ hg -R stream-clone debugnodemap --metadata
  uid: * (glob)
  tip-rev: 5005
  tip-node: 90d5d3ba2fc47db50f712570487cb261a68c8ffe
  data-length: 121088
  data-unused: 0
  data-unused: 0.000%