view tests/test-revset-outgoing.t @ 20836:a8b4541bb961

grep: reuse the first "util.binary()" result for efficiency

Before this patch, to check whether the file in the specified revision
is binary or not, "util.binary()" is invoked via internal function
"binary()" of "hg grep" once per a line of "hg grep" output, even
though binary-ness is not changed in the same file.

This patch reuses the first "util.binary()" invocation result by
annotating internal function "binary()" with "@util.cachefunc".

Performance improvement measured by "hgperf grep -r 88d8e568add1 vfs
mercurial/scmutil.py":

  before this patch:
    ! wall 0.024000 comb 0.015600 user 0.015600 sys 0.000000 (best of 118)

  after this patch:
    ! wall 0.023000 comb 0.015600 user 0.015600 sys 0.000000 (best of 123)

Status of recent(88d8e568add1) "mercurial/scmutil.py":

  # of lines:     919 (may affect cost of search)
  # of bytes:   29633 (may affect cost of "util.binary()")
  # of matches:    22 (may affect frequency of "util.binary()")

  $ cat >> $HGRCPATH <<EOF
  > [alias]
  > tlog = log --template "{rev}:{node|short}: '{desc}' {branches}\n"
  > tglog = tlog -G
  > tout = out --template "{rev}:{node|short}: '{desc}' {branches}\n"
  > EOF

  $ hg init a
  $ cd a

  $ echo a > a
  $ hg ci -Aqm0

  $ echo foo >> a
  $ hg ci -Aqm1

  $ hg up -q 0

  $ hg branch stable
  marked working directory as branch stable
  (branches are permanent and global, did you want a bookmark?)
  $ echo bar >> a
  $ hg ci -qm2

  $ hg tglog
  @  2:7bee6c3bea3a: '2' stable
  |
  | o  1:3560197d8331: '1'
  |/
  o  0:f7b1eb17ad24: '0'
  

  $ cd ..

  $ hg clone -q a#stable b

  $ cd b
  $ cat .hg/hgrc
  [paths]
  default = $TESTTMP/a#stable (glob)

  $ echo red >> a
  $ hg ci -qm3

  $ hg up -q default

  $ echo blue >> a
  $ hg ci -qm4

  $ hg tglog
  @  3:f0461977a3db: '4'
  |
  | o  2:1d4099801a4e: '3' stable
  | |
  | o  1:7bee6c3bea3a: '2' stable
  |/
  o  0:f7b1eb17ad24: '0'
  

  $ hg tout
  comparing with $TESTTMP/a (glob)
  searching for changes
  2:1d4099801a4e: '3' stable

  $ hg tlog -r 'outgoing()'
  2:1d4099801a4e: '3' stable

  $ hg tout ../a#default
  comparing with ../a
  searching for changes
  3:f0461977a3db: '4' 

  $ hg tlog -r 'outgoing("../a#default")'
  3:f0461977a3db: '4' 

  $ echo "green = ../a#default" >> .hg/hgrc

  $ cat .hg/hgrc
  [paths]
  default = $TESTTMP/a#stable (glob)
  green = ../a#default

  $ hg tout green
  comparing with $TESTTMP/a (glob)
  searching for changes
  3:f0461977a3db: '4' 

  $ hg tlog -r 'outgoing("green")'
  3:f0461977a3db: '4' 

  $ cd ..