view tests/test-status-terse.t @ 44861:065421e12248

files: speed up `hg files` when no flags change display

It's not the first time I see slowness from this command slow down
tools built on top of hg.

The majority of the time is spent merely printing the result before
this change, which is clearly not how it should be (especially since
the computation of the result also looks slow).

Running `hg files` in mozilla-central:

parent revision: 1,260s
this commit: 0,683s
this commit without batching ui.write: 0,931s
this commit replacing the body of the loop with `pass`: 0,566s

This looks like a prime candidate for a rust fast path, but until
then, it seems reasonable to optimize the python.

Differential Revision: https://phab.mercurial-scm.org/D8586

  $ mkdir folder
  $ cd folder
  $ hg init
  $ mkdir x x/l x/m x/n x/l/u x/l/u/a
  $ touch a b x/aa.o x/bb.o
  $ hg status
  ? a
  ? b
  ? x/aa.o
  ? x/bb.o

  $ hg status --terse u
  ? a
  ? b
  ? x/
  $ hg status --terse maudric
  ? a
  ? b
  ? x/
  $ hg status --terse madric
  ? a
  ? b
  ? x/aa.o
  ? x/bb.o
  $ hg status --terse f
  abort: 'f' not recognized
  [255]

Add a .hgignore so that we can also have ignored files

  $ echo ".*\.o" > .hgignore
  $ hg status
  ? .hgignore
  ? a
  ? b
  $ hg status -i
  I x/aa.o
  I x/bb.o

Tersing ignored files
  $ hg status -t i --ignored
  I x/

Adding more files
  $ mkdir y
  $ touch x/aa x/bb y/l y/m y/l.o y/m.o
  $ touch x/l/aa x/m/aa x/n/aa x/l/u/bb x/l/u/a/bb

  $ hg status
  ? .hgignore
  ? a
  ? b
  ? x/aa
  ? x/bb
  ? x/l/aa
  ? x/l/u/a/bb
  ? x/l/u/bb
  ? x/m/aa
  ? x/n/aa
  ? y/l
  ? y/m

  $ hg status --terse u
  ? .hgignore
  ? a
  ? b
  ? x/
  ? y/

Run from subdirectory
  $ hg status --terse u --cwd x/l
  ? .hgignore
  ? a
  ? b
  ? x/
  ? y/
  $ relstatus() {
  >   hg status --terse u --config commands.status.relative=1 "$@";
  > }
This should probably have {"l/", "m/", "n/"} instead of {"."}. They should
probably come after "../y/".
  $ relstatus --cwd x
  ? ../.hgignore
  ? ../a
  ? ../b
  ? .
  ? ../y/
This should probably have {"u/", "../m/", "../n/"} instead of {"../"}.
  $ relstatus --cwd x/l
  ? ../../.hgignore
  ? ../../a
  ? ../../b
  ? ../
  ? ../../y/
This should probably have {"a/", "bb", "../aa", "../../m/", "../../n/"}
instead of {"../../"}.
  $ relstatus --cwd x/l/u
  ? ../../../.hgignore
  ? ../../../a
  ? ../../../b
  ? ../../
  ? ../../../y/
This should probably have {"bb", "../bb", "../../aa", "../../../m/",
"../../../n/"} instead of {"../../../"}.
  $ relstatus --cwd x/l/u/a
  ? ../../../../.hgignore
  ? ../../../../a
  ? ../../../../b
  ? ../../../
  ? ../../../../y/

  $ hg add x/aa x/bb .hgignore
  $ hg status --terse au
  A .hgignore
  A x/aa
  A x/bb
  ? a
  ? b
  ? x/l/
  ? x/m/
  ? x/n/
  ? y/

Including ignored files

  $ hg status --terse aui
  A .hgignore
  A x/aa
  A x/bb
  ? a
  ? b
  ? x/l/
  ? x/m/
  ? x/n/
  ? y/l
  ? y/m
  $ hg status --terse au -i
  I x/aa.o
  I x/bb.o
  I y/l.o
  I y/m.o

Committing some of the files

  $ hg commit x/aa x/bb .hgignore -m "First commit"
  $ hg status
  ? a
  ? b
  ? x/l/aa
  ? x/l/u/a/bb
  ? x/l/u/bb
  ? x/m/aa
  ? x/n/aa
  ? y/l
  ? y/m
  $ hg status --terse mardu
  ? a
  ? b
  ? x/l/
  ? x/m/
  ? x/n/
  ? y/

Modifying already committed files

  $ echo "Hello" >> x/aa
  $ echo "World" >> x/bb
  $ hg status --terse maurdc
  M x/aa
  M x/bb
  ? a
  ? b
  ? x/l/
  ? x/m/
  ? x/n/
  ? y/

Respecting other flags

  $ hg status --terse marduic --all
  M x/aa
  M x/bb
  ? a
  ? b
  ? x/l/
  ? x/m/
  ? x/n/
  ? y/l
  ? y/m
  I x/aa.o
  I x/bb.o
  I y/l.o
  I y/m.o
  C .hgignore
  $ hg status --terse marduic -a
  $ hg status --terse marduic -c
  C .hgignore
  $ hg status --terse marduic -m
  M x/aa
  M x/bb

Passing 'i' in terse value will consider the ignored files while tersing

  $ hg status --terse marduic -u
  ? a
  ? b
  ? x/l/
  ? x/m/
  ? x/n/
  ? y/l
  ? y/m

Omitting 'i' in terse value does not consider ignored files while tersing

  $ hg status --terse marduc -u
  ? a
  ? b
  ? x/l/
  ? x/m/
  ? x/n/
  ? y/

Trying with --rev

  $ hg status --terse marduic --rev 0 --rev 1
  abort: cannot use --terse with --rev
  [255]

Config item to set the default terseness
  $ cat <<EOF >> $HGRCPATH
  > [commands]
  > status.terse = u
  > EOF
  $ hg status -mu
  M x/aa
  M x/bb
  ? a
  ? b
  ? x/l/
  ? x/m/
  ? x/n/
  ? y/

Command line flag overrides the default
  $ hg status --terse=
  M x/aa
  M x/bb
  ? a
  ? b
  ? x/l/aa
  ? x/l/u/a/bb
  ? x/l/u/bb
  ? x/m/aa
  ? x/n/aa
  ? y/l
  ? y/m
  $ hg status --terse=mardu
  M x/aa
  M x/bb
  ? a
  ? b
  ? x/l/
  ? x/m/
  ? x/n/
  ? y/

Specifying --rev should still work, with the terseness disabled.
  $ hg status --rev 0
  M x/aa
  M x/bb
  ? a
  ? b
  ? x/l/aa
  ? x/l/u/a/bb
  ? x/l/u/bb
  ? x/m/aa
  ? x/n/aa
  ? y/l
  ? y/m