view tests/test-debugindexdot.t @ 33279:7912404b70f2

transaction: apply checkambig=True only on limited files for similarity

Now, transaction can determine whether avoidance of file stat
ambiguity is needed for each files, by blacklist "checkambigfiles".

For similarity to truncation in _playback(), this patch apply
checkambig=True only on limited files in code paths below.

  - restoring files by util.copyfile(), in _playback()
    (checkambigfiles itself is examined at first, because it as a
    keyword argument might be None)

  - writing files at finalization of transaction, in _generatefiles()

This patch reduces cost of checking stat at writing out and restoring
files, which aren't filecache-ed.

Just exercise debugindexdot
Create a short file history including a merge.
  $ hg init t
  $ cd t
  $ echo a > a
  $ hg ci -qAm t1 -d '0 0'
  $ echo a >> a
  $ hg ci -m t2 -d '1 0'
  $ hg up -qC 0
  $ echo b >> a
  $ hg ci -m t3 -d '2 0'
  created new head
  $ HGMERGE=true hg merge -q
  $ hg ci -m merge -d '3 0'

  $ hg debugindexdot .hg/store/data/a.i
  digraph G {
  	-1 -> 0
  	0 -> 1
  	0 -> 2
  	2 -> 3
  	1 -> 3
  }

  $ cd ..