tests/test-branches.t

51559:16d93adddce7

  $ rm -f .hg/cache/branch* && hg head a -T '{rev}\n' --debug
  5
  truncating cache/rbc-revs-v1 to 160
  $ f --size .hg/cache/rbc-revs*
  .hg/cache/rbc-revs-v1: size=160
recovery from invalid cache file with partial last record
  $ mv .hg/cache/rbc-revs-v1 .
  $ f -qDB 119 rbc-revs-v1 > .hg/cache/rbc-revs-v1
  $ f --size .hg/cache/rbc-revs*
  .hg/cache/rbc-revs-v1: size=119
  $ rm -f .hg/cache/branch* && hg head a -T '{rev}\n' --debug
  5
  truncating cache/rbc-revs-v1 to 112
  $ f --size .hg/cache/rbc-revs*
  .hg/cache/rbc-revs-v1: size=160
recovery from invalid cache file with missing record - no truncation
  $ mv .hg/cache/rbc-revs-v1 .
  $ f -qDB 112 rbc-revs-v1 > .hg/cache/rbc-revs-v1
  $ rm -f .hg/cache/branch* && hg head a -T '{rev}\n' --debug
  5
  $ f --size .hg/cache/rbc-revs*
  .hg/cache/rbc-revs-v1: size=160
recovery from invalid cache file with some bad records
  $ mv .hg/cache/rbc-revs-v1 .
  $ f -qDB 8 rbc-revs-v1 > .hg/cache/rbc-revs-v1
  $ f --size .hg/cache/rbc-revs*
  .hg/cache/rbc-revs-v1: size=8

  5
  truncating cache/rbc-revs-v1 to 104
  $ f --size --hexdump --bytes=16 .hg/cache/rbc-revs*
  .hg/cache/rbc-revs-v1: size=160
  0000: 19 70 9c 5a 00 00 00 00 dd 6b 44 0d 00 00 00 01 |.p.Z.....kD.....|
cache is updated when committing
  $ hg branch i-will-regret-this
  marked working directory as branch i-will-regret-this
  $ hg ci -m regrets
  $ f --size .hg/cache/rbc-*
  .hg/cache/rbc-names-v1: size=111
  .hg/cache/rbc-revs-v1: size=168
update after rollback - the cache will be correct but rbc-names will will still
contain the branch name even though it no longer is used
  $ hg up -qr '.^'
  $ hg rollback -qf
  $ f --size --hexdump .hg/cache/rbc-*

  0050: bf be 84 1b 00 00 00 02 d3 f1 63 45 80 00 00 02 |..........cE....|
  0060: e3 d4 9c 05 80 00 00 02 e2 3b 55 05 00 00 00 02 |.........;U.....|
  0070: f8 94 c2 56 80 00 00 03 f3 44 76 37 00 00 00 05 |...V.....Dv7....|
  0080: a5 8c a5 d3 00 00 00 05 df 34 3b 0d 00 00 00 05 |.........4;.....|
  0090: c9 14 c9 9f 00 00 00 06 cd 21 a8 0b 80 00 00 05 |.........!......|
cache is updated/truncated when stripping - it is thus very hard to get in a
situation where the cache is out of sync and the hash check detects it
  $ hg --config extensions.strip= strip -r tip --nob
  $ f --size .hg/cache/rbc-revs*
  .hg/cache/rbc-revs-v1: size=152

51560:c7e81615b5c4

  $ rm -f .hg/cache/branch* && hg head a -T '{rev}\n' --debug
  5
  truncating cache/rbc-revs-v1 to 160
  $ f --size .hg/cache/rbc-revs*
  .hg/cache/rbc-revs-v1: size=160

recovery from invalid cache file with partial last record
  $ mv .hg/cache/rbc-revs-v1 .
  $ f -qDB 119 rbc-revs-v1 > .hg/cache/rbc-revs-v1
  $ f --size .hg/cache/rbc-revs*
  .hg/cache/rbc-revs-v1: size=119
  $ rm -f .hg/cache/branch* && hg head a -T '{rev}\n' --debug
  5
  truncating cache/rbc-revs-v1 to 112
  $ f --size .hg/cache/rbc-revs*
  .hg/cache/rbc-revs-v1: size=160

recovery from invalid cache file with missing record - no truncation
  $ mv .hg/cache/rbc-revs-v1 .
  $ f -qDB 112 rbc-revs-v1 > .hg/cache/rbc-revs-v1
  $ rm -f .hg/cache/branch* && hg head a -T '{rev}\n' --debug
  5
  $ f --size .hg/cache/rbc-revs*
  .hg/cache/rbc-revs-v1: size=160

recovery from invalid cache file with some bad records
  $ mv .hg/cache/rbc-revs-v1 .
  $ f -qDB 8 rbc-revs-v1 > .hg/cache/rbc-revs-v1
  $ f --size .hg/cache/rbc-revs*
  .hg/cache/rbc-revs-v1: size=8

  5
  truncating cache/rbc-revs-v1 to 104
  $ f --size --hexdump --bytes=16 .hg/cache/rbc-revs*
  .hg/cache/rbc-revs-v1: size=160
  0000: 19 70 9c 5a 00 00 00 00 dd 6b 44 0d 00 00 00 01 |.p.Z.....kD.....|

cache is updated when committing
  $ hg branch i-will-regret-this
  marked working directory as branch i-will-regret-this
  $ hg ci -m regrets
  $ f --size .hg/cache/rbc-*
  .hg/cache/rbc-names-v1: size=111
  .hg/cache/rbc-revs-v1: size=168

update after rollback - the cache will be correct but rbc-names will will still
contain the branch name even though it no longer is used
  $ hg up -qr '.^'
  $ hg rollback -qf
  $ f --size --hexdump .hg/cache/rbc-*

  0050: bf be 84 1b 00 00 00 02 d3 f1 63 45 80 00 00 02 |..........cE....|
  0060: e3 d4 9c 05 80 00 00 02 e2 3b 55 05 00 00 00 02 |.........;U.....|
  0070: f8 94 c2 56 80 00 00 03 f3 44 76 37 00 00 00 05 |...V.....Dv7....|
  0080: a5 8c a5 d3 00 00 00 05 df 34 3b 0d 00 00 00 05 |.........4;.....|
  0090: c9 14 c9 9f 00 00 00 06 cd 21 a8 0b 80 00 00 05 |.........!......|

cache is updated/truncated when stripping - it is thus very hard to get in a
situation where the cache is out of sync and the hash check detects it
  $ hg --config extensions.strip= strip -r tip --nob
  $ f --size .hg/cache/rbc-revs*
  .hg/cache/rbc-revs-v1: size=152