abort: added support for histedit
This patch adds the support for `histedit` in `hg abort` plan.
As seperate `hgaborthistedit()` function is created to handle
independent calls for abortion of `histedit`. This function is
then registered as `abortfunc` for state detection API.
hg abort in case of `histedit` also supports ` history-editing-backup`
config option.
Results are shown as tests.
Differential Revision: https://phab.mercurial-scm.org/D6582
#require no-pure
A script to generate nasty diff worst-case scenarios:
$ cat > s.py <<EOF
> import random
> for x in range(100000):
> print
> if random.randint(0, 100) >= 50:
> x += 1
> print(hex(x))
> EOF
$ hg init a
$ cd a
Check in a big file:
$ "$PYTHON" ../s.py > a
$ hg ci -qAm0
Modify it:
$ "$PYTHON" ../s.py > a
Time a check-in, should never take more than 10 seconds user time:
$ hg ci --time -m1
time: real .* secs .user [0-9][.].* sys .* (re)