$ cat >> $HGRCPATH << EOF

  > [extensions]

  > fastannotate=

  > [fastannotate]

  > perfhack=1

  > EOF

  $ hg init repo

  $ cd repo

a simple merge case

  $ echo 1 > a

  $ hg commit -qAm 'append 1'

  $ echo 2 >> a

  $ hg commit -m 'append 2'

  $ echo 3 >> a

  $ hg commit -m 'append 3'

  $ hg up 1 -q

  $ cat > a << EOF

  > 0

  > 1

  > 2

  > EOF

  $ hg commit -qm 'insert 0'

  $ hg merge 2 -q

  $ echo 4 >> a

  $ hg commit -m merge

  $ hg log -G -T '{rev}: {desc}'

  @    4: merge

  |\

  | o  3: insert 0

  | |

  o |  2: append 3

  |/

  o  1: append 2

  |

  o  0: append 1

  $ hg fastannotate a

  3: 0

  0: 1

  1: 2

  2: 3

  4: 4

  $ hg fastannotate -r 0 a

  0: 1

  $ hg fastannotate -r 1 a

  0: 1

  1: 2

  $ hg fastannotate -udnclf a

  test 3 d641cb51f61e Thu Jan 01 00:00:00 1970 +0000 a:1: 0

  test 0 4994017376d3 Thu Jan 01 00:00:00 1970 +0000 a:1: 1

  test 1 e940cb6d9a06 Thu Jan 01 00:00:00 1970 +0000 a:2: 2

  test 2 26162a884ba6 Thu Jan 01 00:00:00 1970 +0000 a:3: 3

  test 4 3ad7bcd2815f Thu Jan 01 00:00:00 1970 +0000 a:5: 4

  $ hg fastannotate --linear a

  3: 0

  0: 1

  1: 2

  4: 3

  4: 4

incrementally updating

  $ hg fastannotate -r 0 a --debug

  fastannotate: a: using fast path (resolved fctx: True)

  0: 1

  $ hg fastannotate -r 0 a --debug --rebuild

  fastannotate: a: 1 new changesets in the main branch

  0: 1

  $ hg fastannotate -r 1 a --debug

  fastannotate: a: 1 new changesets in the main branch

  0: 1

  1: 2

  $ hg fastannotate -r 3 a --debug

  fastannotate: a: 1 new changesets in the main branch

  3: 0

  0: 1

  1: 2

  $ hg fastannotate -r 4 a --debug

  fastannotate: a: 1 new changesets in the main branch

  3: 0

  0: 1

  1: 2

  2: 3

  4: 4

  $ hg fastannotate -r 1 a --debug

  fastannotate: a: using fast path (resolved fctx: True)

  0: 1

  1: 2

rebuild happens automatically if unable to update

  $ hg fastannotate -r 2 a --debug

  fastannotate: a: cache broken and deleted

  fastannotate: a: 3 new changesets in the main branch

  0: 1

  1: 2

  2: 3

config option "fastannotate.mainbranch"

  $ hg fastannotate -r 1 --rebuild --config fastannotate.mainbranch=tip a --debug

  fastannotate: a: 4 new changesets in the main branch

  0: 1

  1: 2

  $ hg fastannotate -r 4 a --debug

  fastannotate: a: using fast path (resolved fctx: True)

  3: 0

  0: 1

  1: 2

  2: 3

  4: 4

rename

  $ hg mv a b

  $ cat > b << EOF

  > 0

  > 11

  > 3

  > 44

  > EOF

  $ hg commit -m b -q

  $ hg fastannotate -ncf --long-hash b

  3 d641cb51f61e331c44654104301f8154d7865c89 a: 0

  5 d44dade239915bc82b91e4556b1257323f8e5824 b: 11

  2 26162a884ba60e8c87bf4e0d6bb8efcc6f711a4e a: 3

  5 d44dade239915bc82b91e4556b1257323f8e5824 b: 44

  $ hg fastannotate -r 26162a884ba60e8c87bf4e0d6bb8efcc6f711a4e a

  0: 1

  1: 2

  2: 3

fastannotate --deleted

  $ hg fastannotate --deleted -nf b

  3 a:  0

  5 b:  11

  0 a: -1

  1 a: -2

  2 a:  3

  5 b:  44

  4 a: -4

  $ hg fastannotate --deleted -r 3 -nf a

  3 a:  0

  0 a:  1

  1 a:  2

file and directories with ".l", ".m" suffixes

  $ cd ..

  $ hg init repo2

  $ cd repo2

  $ mkdir a.l b.m c.lock a.l.hg b.hg

  $ for i in a b c d d.l d.m a.l/a b.m/a c.lock/a a.l.hg/a b.hg/a; do

  >   echo $i > $i

  > done

  $ hg add . -q

  $ hg commit -m init

  $ hg fastannotate a.l/a b.m/a c.lock/a a.l.hg/a b.hg/a d.l d.m a b c d

  0: a

  0: a.l.hg/a

  0: a.l/a

  0: b

  0: b.hg/a

  0: b.m/a

  0: c

  0: c.lock/a

  0: d

  0: d.l

  0: d.m

empty file

  $ touch empty

  $ hg commit -A empty -m empty

  $ hg fastannotate empty