view tests/test-show-stack.t @ 33927:853574db5b12

encoding: add fast path of from/tolocal() for ASCII strings

This is micro optimization, but seems not bad since to/fromlocal() is called
lots of times and isasciistr() is cheap and simple.

We boldly assume that any non-ASCII characters have at least one 8-bit byte.
This isn't true for some email character sets (e.g. ISO-2022-JP and UTF-7),
but I believe no such encodings are used as a platform default. Shift_JIS,
a major crap, is okay as it should have a leading byte in 0x80-0xff range.

  (with mercurial repo)
  $ export HGRCPATH=/dev/null HGPLAIN=
  $ hg log --time --config experimental.stabilization=all > /dev/null

  (original)
  time: real 7.460 secs (user 7.420+0.000 sys 0.030+0.000)
  time: real 7.670 secs (user 7.590+0.000 sys 0.080+0.000)
  time: real 7.560 secs (user 7.510+0.000 sys 0.040+0.000)

  (this patch)
  time: real 7.340 secs (user 7.260+0.000 sys 0.060+0.000)
  time: real 7.260 secs (user 7.210+0.000 sys 0.030+0.000)
  time: real 7.310 secs (user 7.260+0.000 sys 0.060+0.000)

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

  $ hg init repo0
  $ cd repo0

Empty repo / no checkout results in error

  $ hg show stack
  abort: stack view only available when there is a working directory
  [255]

Stack displays single draft changeset as root revision

  $ echo 0 > foo
  $ hg -q commit -A -m 'commit 0'
  $ hg show stack
    @  9f171 commit 0

Stack displays multiple draft changesets

  $ echo 1 > foo
  $ hg commit -m 'commit 1'
  $ echo 2 > foo
  $ hg commit -m 'commit 2'
  $ echo 3 > foo
  $ hg commit -m 'commit 3'
  $ echo 4 > foo
  $ hg commit -m 'commit 4'
  $ hg show stack
    @  2737b commit 4
    o  d1a69 commit 3
    o  128c8 commit 2
    o  181cc commit 1
    o  9f171 commit 0

Public parent of draft base is displayed, separated from stack

  $ hg phase --public -r 0
  $ hg show stack
    @  2737b commit 4
    o  d1a69 commit 3
    o  128c8 commit 2
    o  181cc commit 1
   /   (stack base)
  o  9f171 commit 0

  $ hg phase --public -r 1
  $ hg show stack
    @  2737b commit 4
    o  d1a69 commit 3
    o  128c8 commit 2
   /   (stack base)
  o  181cc commit 1

Draft descendants are shown

  $ hg -q up 2
  $ hg show stack
    o  2737b commit 4
    o  d1a69 commit 3
    @  128c8 commit 2
   /   (stack base)
  o  181cc commit 1

  $ hg -q up 3
  $ hg show stack
    o  2737b commit 4
    @  d1a69 commit 3
    o  128c8 commit 2
   /   (stack base)
  o  181cc commit 1

working dir on public changeset should display special message

  $ hg -q up 1
  $ hg show stack
  (empty stack; working directory parent is a published changeset)

Branch point in descendants displayed at top of graph

  $ hg -q up 3
  $ echo b > foo
  $ hg commit -m 'commit 5 (new dag branch)'
  created new head
  $ hg -q up 2
  $ hg show stack
   \ /  (multiple children)
    |
    o  d1a69 commit 3
    @  128c8 commit 2
   /   (stack base)
  o  181cc commit 1

  $ cd ..

Base is stopped at merges

  $ hg init merge-base
  $ cd merge-base
  $ echo 0 > foo
  $ hg -q commit -A -m initial
  $ echo h1 > foo
  $ hg commit -m 'head 1'
  $ hg -q up 0
  $ echo h2 > foo
  $ hg -q commit -m 'head 2'
  $ hg phase --public -r 0:tip
  $ hg -q up 1
  $ hg merge -t :local 2
  0 files updated, 1 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)
  $ hg commit -m 'merge heads'

TODO doesn't yet handle case where wdir is a draft merge

  $ hg show stack
    @  8ee90 merge heads
   /   (stack base)
  o  59478 head 1

  $ echo d1 > foo
  $ hg commit -m 'draft 1'
  $ echo d2 > foo
  $ hg commit -m 'draft 2'

  $ hg show stack
    @  430d5 draft 2
    o  787b1 draft 1
   /   (stack base)
  o  8ee90 merge heads

  $ cd ..

Now move on to stacks when there are more commits after the base branchpoint

  $ hg init public-rebase
  $ cd public-rebase
  $ echo 0 > foo
  $ hg -q commit -A -m 'base'
  $ hg phase --public -r .
  $ echo d1 > foo
  $ hg commit -m 'draft 1'
  $ echo d2 > foo
  $ hg commit -m 'draft 2'
  $ hg -q up 0
  $ echo 1 > foo
  $ hg commit -m 'new 1'
  created new head
  $ echo 2 > foo
  $ hg commit -m 'new 2'
  $ hg -q up 2

Newer draft heads don't impact output

  $ hg show stack
    @  eaffc draft 2
    o  2b218 draft 1
   /   (stack base)
  o  b66bb base

Newer public heads are rendered

  $ hg phase --public -r '::tip'

  $ hg show stack
    o  baa4b new 2
   /    (2 commits ahead)
  :
  :    (stack head)
  : @  eaffc draft 2
  : o  2b218 draft 1
  :/   (stack base)
  o  b66bb base

If rebase is available, we show a hint how to rebase to that head

  $ hg --config extensions.rebase= show stack
    o  baa4b new 2
   /    (2 commits ahead; hg rebase --source 2b218 --dest baa4b)
  :
  :    (stack head)
  : @  eaffc draft 2
  : o  2b218 draft 1
  :/   (stack base)
  o  b66bb base

Similar tests but for multiple heads

  $ hg -q up 0
  $ echo h2 > foo
  $ hg -q commit -m 'new head 2'
  $ hg phase --public -r .
  $ hg -q up 2

  $ hg show stack
    o  baa4b new 2
   /    (2 commits ahead)
  : o  9a848 new head 2
  :/    (1 commits ahead)
  :
  :    (stack head)
  : @  eaffc draft 2
  : o  2b218 draft 1
  :/   (stack base)
  o  b66bb base

  $ hg --config extensions.rebase= show stack
    o  baa4b new 2
   /    (2 commits ahead; hg rebase --source 2b218 --dest baa4b)
  : o  9a848 new head 2
  :/    (1 commits ahead; hg rebase --source 2b218 --dest 9a848)
  :
  :    (stack head)
  : @  eaffc draft 2
  : o  2b218 draft 1
  :/   (stack base)
  o  b66bb base