tests/test-fileset-generated.t

bdiff: don't check border condition in loop

This is pretty much a copy of d500ddae7494, just to a different loop.

The condition `p == plast` (`plast == a + len - 1`) was only true on
the final iteration of the loop. So it was wasteful to check for it
on every iteration. We decrease the iteration count by 1 and add an
explicit check for `p == plast` after the loop.

Again, we see modest wins.

From the mozilla-unified repository:

$ perfbdiff -m 3041e4d59df2
! wall 0.035502 comb 0.040000 user 0.040000 sys 0.000000 (best of 100)
! wall 0.030480 comb 0.030000 user 0.030000 sys 0.000000 (best of 100)

$ perfbdiff 0e9928989e9c --alldata --count 100
! wall 4.097394 comb 4.100000 user 4.100000 sys 0.000000 (best of 3)
! wall 3.597798 comb 3.600000 user 3.600000 sys 0.000000 (best of 3)

The 2nd example throws a total of ~3.3GB of data at bdiff. This
change increases the throughput from ~811 MB/s to ~924 MB/s.

  $ hg init

Set up history and working copy

  $ python $TESTDIR/generate-working-copy-states.py state 2 1
  $ hg addremove -q --similarity 0
  $ hg commit -m first

  $ python $TESTDIR/generate-working-copy-states.py state 2 2
  $ hg addremove -q --similarity 0
  $ hg commit -m second

  $ python $TESTDIR/generate-working-copy-states.py state 2 wc
  $ hg addremove -q --similarity 0
  $ hg forget *_*_*-untracked
  $ rm *_*_missing-*

Test status

  $ hg st -A 'set:modified()'
  M content1_content1_content3-tracked
  M content1_content2_content1-tracked
  M content1_content2_content3-tracked
  M missing_content2_content3-tracked

  $ hg st -A 'set:added()'
  A content1_missing_content1-tracked
  A content1_missing_content3-tracked
  A missing_missing_content3-tracked

  $ hg st -A 'set:removed()'
  R content1_content1_content1-untracked
  R content1_content1_content3-untracked
  R content1_content1_missing-untracked
  R content1_content2_content1-untracked
  R content1_content2_content2-untracked
  R content1_content2_content3-untracked
  R content1_content2_missing-untracked
  R missing_content2_content2-untracked
  R missing_content2_content3-untracked
  R missing_content2_missing-untracked

  $ hg st -A 'set:deleted()'
  ! content1_content1_missing-tracked
  ! content1_content2_missing-tracked
  ! content1_missing_missing-tracked
  ! missing_content2_missing-tracked
  ! missing_missing_missing-tracked

  $ hg st -A 'set:missing()'
  ! content1_content1_missing-tracked
  ! content1_content2_missing-tracked
  ! content1_missing_missing-tracked
  ! missing_content2_missing-tracked
  ! missing_missing_missing-tracked

  $ hg st -A 'set:unknown()'
  ? content1_missing_content1-untracked
  ? content1_missing_content3-untracked
  ? missing_missing_content3-untracked

  $ hg st -A 'set:clean()'
  C content1_content1_content1-tracked
  C content1_content2_content2-tracked
  C missing_content2_content2-tracked

Test log

  $ hg log -T '{rev}\n' --stat 'set:modified()'
  1
   content1_content2_content1-tracked |  2 +-
   content1_content2_content3-tracked |  2 +-
   missing_content2_content3-tracked  |  1 +
   3 files changed, 3 insertions(+), 2 deletions(-)
  
  0
   content1_content1_content3-tracked |  1 +
   content1_content2_content1-tracked |  1 +
   content1_content2_content3-tracked |  1 +
   3 files changed, 3 insertions(+), 0 deletions(-)
  
Largefiles doesn't crash
  $ hg log -T '{rev}\n' --stat 'set:modified()' --config extensions.largefiles=
  1
   content1_content2_content1-tracked |  2 +-
   content1_content2_content3-tracked |  2 +-
   missing_content2_content3-tracked  |  1 +
   3 files changed, 3 insertions(+), 2 deletions(-)
  
  0
   content1_content1_content3-tracked |  1 +
   content1_content2_content1-tracked |  1 +
   content1_content2_content3-tracked |  1 +
   3 files changed, 3 insertions(+), 0 deletions(-)
  
  $ hg log -T '{rev}\n' --stat 'set:added()'
  1
   content1_missing_content1-tracked |  1 -
   content1_missing_content3-tracked |  1 -
   2 files changed, 0 insertions(+), 2 deletions(-)
  
  0
   content1_missing_content1-tracked |  1 +
   content1_missing_content3-tracked |  1 +
   2 files changed, 2 insertions(+), 0 deletions(-)
  
  $ hg log -T '{rev}\n' --stat 'set:removed()'
  1
   content1_content2_content1-untracked |  2 +-
   content1_content2_content2-untracked |  2 +-
   content1_content2_content3-untracked |  2 +-
   content1_content2_missing-untracked  |  2 +-
   missing_content2_content2-untracked  |  1 +
   missing_content2_content3-untracked  |  1 +
   missing_content2_missing-untracked   |  1 +
   7 files changed, 7 insertions(+), 4 deletions(-)
  
  0
   content1_content1_content1-untracked |  1 +
   content1_content1_content3-untracked |  1 +
   content1_content1_missing-untracked  |  1 +
   content1_content2_content1-untracked |  1 +
   content1_content2_content2-untracked |  1 +
   content1_content2_content3-untracked |  1 +
   content1_content2_missing-untracked  |  1 +
   7 files changed, 7 insertions(+), 0 deletions(-)
  
  $ hg log -T '{rev}\n' --stat 'set:deleted()'
  1
   content1_content2_missing-tracked |  2 +-
   content1_missing_missing-tracked  |  1 -
   missing_content2_missing-tracked  |  1 +
   3 files changed, 2 insertions(+), 2 deletions(-)
  
  0
   content1_content1_missing-tracked |  1 +
   content1_content2_missing-tracked |  1 +
   content1_missing_missing-tracked  |  1 +
   3 files changed, 3 insertions(+), 0 deletions(-)
  
  $ hg log -T '{rev}\n' --stat 'set:unknown()'
  1
   content1_missing_content1-untracked |  1 -
   content1_missing_content3-untracked |  1 -
   2 files changed, 0 insertions(+), 2 deletions(-)
  
  0
   content1_missing_content1-untracked |  1 +
   content1_missing_content3-untracked |  1 +
   2 files changed, 2 insertions(+), 0 deletions(-)
  
  $ hg log -T '{rev}\n' --stat 'set:clean()'
  1
   content1_content2_content2-tracked |  2 +-
   missing_content2_content2-tracked  |  1 +
   2 files changed, 2 insertions(+), 1 deletions(-)
  
  0
   content1_content1_content1-tracked |  1 +
   content1_content2_content2-tracked |  1 +
   2 files changed, 2 insertions(+), 0 deletions(-)
  
Test revert

  $ hg revert 'set:modified()'
  reverting content1_content1_content3-tracked
  reverting content1_content2_content1-tracked
  reverting content1_content2_content3-tracked
  reverting missing_content2_content3-tracked

  $ hg revert 'set:added()'
  forgetting content1_missing_content1-tracked
  forgetting content1_missing_content3-tracked
  forgetting missing_missing_content3-tracked

  $ hg revert 'set:removed()'
  undeleting content1_content1_content1-untracked
  undeleting content1_content1_content3-untracked
  undeleting content1_content1_missing-untracked
  undeleting content1_content2_content1-untracked
  undeleting content1_content2_content2-untracked
  undeleting content1_content2_content3-untracked
  undeleting content1_content2_missing-untracked
  undeleting missing_content2_content2-untracked
  undeleting missing_content2_content3-untracked
  undeleting missing_content2_missing-untracked

  $ hg revert 'set:deleted()'
  reverting content1_content1_missing-tracked
  reverting content1_content2_missing-tracked
  forgetting content1_missing_missing-tracked
  reverting missing_content2_missing-tracked
  forgetting missing_missing_missing-tracked

  $ hg revert 'set:unknown()'

  $ hg revert 'set:clean()'