view tests/test-mq-qdiff.t @ 29001:923fa9e06ea0 stable

revset: make sort() do dumb multi-pass sorting for multiple keys (issue5218)

Our invert() function was too clever to not take length into account. I could
fix the problem by appending '\xff' as a terminator (opposite to '\0'), but
it turned out to be slower than simple multi-pass sorting.

New implementation is pretty straightforward, which just calls sort() from the
last key. We can do that since Python sort() is guaranteed to be stable. It
doesn't sound nice to call sort() multiple times, but actually it is faster.
That's probably because we have fewer Python codes in hot loop, and can avoid
heavy string and list manipulation.

  revset #0: sort(0:10000, 'branch')
  0) 0.412753
  1) 0.393254

  revset #1: sort(0:10000, '-branch')
  0) 0.455377
  1) 0.389191  85%

  revset #2: sort(0:10000, 'date')
  0) 0.408082
  1) 0.376332  92%

  revset #3: sort(0:10000, '-date')
  0) 0.406910
  1) 0.380498  93%

  revset #4: sort(0:10000, 'desc branch user date rev')
  0) 0.542996
  1) 0.486397  89%

  revset #5: sort(0:10000, '-desc -branch -user -date -rev')
  0) 0.965032
  1) 0.518426  53%

  $ cat <<EOF >> $HGRCPATH
  > [extensions]
  > mq =
  > [mq]
  > git = keep
  > EOF

  $ hg init a
  $ cd a

  $ echo 'base' > base
  $ hg ci -Ambase
  adding base

  $ hg qnew -mmqbase mqbase

  $ echo 'patched' > base
  $ hg qrefresh

qdiff:

  $ hg qdiff
  diff -r d20a80d4def3 base
  --- a/base	Thu Jan 01 00:00:00 1970 +0000
  +++ b/base* (glob)
  @@ -1,1 +1,1 @@
  -base
  +patched

qdiff dirname:

  $ hg qdiff --nodates .
  diff -r d20a80d4def3 base
  --- a/base
  +++ b/base
  @@ -1,1 +1,1 @@
  -base
  +patched

qdiff filename:

  $ hg qdiff --nodates base
  diff -r d20a80d4def3 base
  --- a/base
  +++ b/base
  @@ -1,1 +1,1 @@
  -base
  +patched

  $ hg revert -a

  $ hg qpop
  popping mqbase
  patch queue now empty

  $ hg qdelete mqbase

  $ printf '1\n2\n3\n4\nhello world\ngoodbye world\n7\n8\n9\n' > lines
  $ hg ci -Amlines -d '2 0'
  adding lines

  $ hg qnew -mmqbase2 mqbase2
  $ printf '\n\n1\n2\n3\n4\nhello  world\n     goodbye world\n7\n8\n9\n' > lines

  $ hg qdiff --nodates -U 1
  diff -r b0c220e1cf43 lines
  --- a/lines
  +++ b/lines
  @@ -1,1 +1,3 @@
  +
  +
   1
  @@ -4,4 +6,4 @@
   4
  -hello world
  -goodbye world
  +hello  world
  +     goodbye world
   7

  $ hg qdiff --nodates -b
  diff -r b0c220e1cf43 lines
  --- a/lines
  +++ b/lines
  @@ -1,9 +1,11 @@
  +
  +
   1
   2
   3
   4
   hello world
  -goodbye world
  +     goodbye world
   7
   8
   9

  $ hg qdiff --nodates -U 1 -B
  diff -r b0c220e1cf43 lines
  --- a/lines
  +++ b/lines
  @@ -4,4 +4,4 @@
   4
  -hello world
  -goodbye world
  +hello  world
  +     goodbye world
   7

  $ hg qdiff --nodates -w
  diff -r b0c220e1cf43 lines
  --- a/lines
  +++ b/lines
  @@ -1,3 +1,5 @@
  +
  +
   1
   2
   3

  $ hg qdiff --nodates --reverse
  diff -r b0c220e1cf43 lines
  --- a/lines
  +++ b/lines
  @@ -1,11 +1,9 @@
  -
  -
   1
   2
   3
   4
  -hello  world
  -     goodbye world
  +hello world
  +goodbye world
   7
   8
   9

qdiff preserve existing git flag:

  $ hg qrefresh --git
  $ echo a >> lines
  $ hg qdiff
  diff --git a/lines b/lines
  --- a/lines
  +++ b/lines
  @@ -1,9 +1,12 @@
  +
  +
   1
   2
   3
   4
  -hello world
  -goodbye world
  +hello  world
  +     goodbye world
   7
   8
   9
  +a

  $ hg qdiff --stat
   lines |  7 +++++--
   1 files changed, 5 insertions(+), 2 deletions(-)
  $ hg qrefresh

qdiff when file deleted (but not removed) in working dir:

  $ hg qnew deleted-file
  $ echo a > newfile
  $ hg add newfile
  $ hg qrefresh
  $ rm newfile
  $ hg qdiff

  $ cd ..