view tests/test-fastannotate.t @ 40172:30f70d11c224

wireprotov2: advertise recommended batch size for requests

Currently, exchangev2 hardcodes the batch size for how many revisions
to fetch per command request. A single value is not appropriate
for every repository because some repositories may have a drastically
different "shape" from other repositories. e.g. a repo with lots of
small files may benefit from larger batch sizes than a repo with lots
of large files. And depending on caching used by the server, the server
may wish to control the number of commands (to e.g. mitigate overhead
of following content redirects).

This commit teaches wireprotov2 commands to declare extra metadata
which is advertised as part of the command descriptor. The manifestdata
command has been taught to advertise a recommended batch size for
requests.

Differential Revision: https://phab.mercurial-scm.org/D4975

  $ cat >> $HGRCPATH << EOF
  > [extensions]
  > fastannotate=
  > EOF

  $ HGMERGE=true; export HGMERGE

  $ 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

config option "fastannotate.modes"

  $ hg annotate -r 1 --debug a
  0: 1
  1: 2
  $ hg annotate --config fastannotate.modes=fctx -r 1 --debug a
  fastannotate: a: using fast path (resolved fctx: False)
  0: 1
  1: 2
  $ hg fastannotate --config fastannotate.modes=fctx -h -q
  hg: unknown command 'fastannotate'
  (did you mean *) (glob)
  [255]

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

json format

  $ hg fastannotate -Tjson -cludn b a empty
  [
   {
    "date": [0.0, 0],
    "line": "a\n",
    "line_number": 1,
    "node": "1fd620b16252aecb54c6aa530dff5ed6e6ec3d21",
    "rev": 0,
    "user": "test"
   },
   {
    "date": [0.0, 0],
    "line": "b\n",
    "line_number": 1,
    "node": "1fd620b16252aecb54c6aa530dff5ed6e6ec3d21",
    "rev": 0,
    "user": "test"
   }
  ]

  $ hg fastannotate -Tjson -cludn empty
  [
  ]
  $ hg fastannotate -Tjson --no-content -n a
  [
   {
    "rev": 0
   }
  ]

working copy

  $ echo a >> a
  $ hg fastannotate -r 'wdir()' a
  abort: cannot update linelog to wdir()
  (set fastannotate.mainbranch)
  [255]
  $ cat >> $HGRCPATH << EOF
  > [fastannotate]
  > mainbranch = .
  > EOF
  $ hg fastannotate -r 'wdir()' a
  0 : a
  1+: a
  $ hg fastannotate -cludn -r 'wdir()' a
  test 0 1fd620b16252  Thu Jan 01 00:00:00 1970 +0000:1: a
  test 1 720582f5bdb6+ *:2: a (glob)
  $ hg fastannotate -cludn -r 'wdir()' -Tjson a
  [
   {
    "date": [0.0, 0],
    "line": "a\n",
    "line_number": 1,
    "node": "1fd620b16252aecb54c6aa530dff5ed6e6ec3d21",
    "rev": 0,
    "user": "test"
   },
   {
    "date": [*, 0], (glob)
    "line": "a\n",
    "line_number": 2,
    "node": null,
    "rev": null,
    "user": "test"
   }
  ]