Tests for the --stop flag for `hg evolve` command while resolving phase-divergence

==================================================================================

The `--stop` flag stops the interrupted evolution and delete the state file so

user can do other things and comeback and do evolution later on

This is testing cases when `hg evolve` command is doing phase-divergence resolution.

Setup

=====

  $ cat >> $HGRCPATH <<EOF

  > [alias]

  > glog = log -GT "{rev}:{node|short} {desc}\n ({bookmarks}) {phase}"

  > [extensions]

  > EOF

  $ echo "evolve=$(echo $(dirname $TESTDIR))/hgext3rd/evolve/" >> $HGRCPATH

  $ hg init stoprepo

  $ cd stoprepo

  $ echo ".*\.orig" > .hgignore

  $ hg add .hgignore

  $ hg ci -m "added hgignore"

  $ for ch in a b c d; do echo foo > $ch; hg add $ch; hg ci -qm "added "$ch; done;

  $ hg glog

  @  4:c41c793e0ef1 added d

  |   () draft

  o  3:ca1b80f7960a added c

  |   () draft

  o  2:b1661037fa25 added b

  |   () draft

  o  1:c7586e2a9264 added a

  |   () draft

  o  0:8fa14d15e168 added hgignore

      () draft

Creating phase divergence, resolution of which will lead to conflicts

----------------------------------------------------------------------

  $ hg up .^^^

  0 files updated, 0 files merged, 3 files removed, 0 files unresolved

  $ hg grab -r .~-3

  grabbing 4:c41c793e0ef1 "added d"

  $ echo foobar > c

  $ hg add c

  $ hg amend

  $ hg glog --hidden

  @  6:ddba58020bc0 added d

  |   () draft

  | x  5:cfe30edc6125 added d

  |/    () draft

  | x  4:c41c793e0ef1 added d

  | |   () draft

  | o  3:ca1b80f7960a added c

  | |   () draft

  | o  2:b1661037fa25 added b

  |/    () draft

  o  1:c7586e2a9264 added a

  |   () draft

  o  0:8fa14d15e168 added hgignore

      () draft

  $ hg phase -r c41c793e0ef1 --public --hidden

  1 new phase-divergent changesets

  $ hg glog

  @  6:ddba58020bc0 added d

  |   () draft

  | o  4:c41c793e0ef1 added d

  | |   () public

  | o  3:ca1b80f7960a added c

  | |   () public

  | o  2:b1661037fa25 added b

  |/    () public

  o  1:c7586e2a9264 added a

  |   () public

  o  0:8fa14d15e168 added hgignore

      () public

  $ hg evolve --phase-divergent

  recreate:[6] added d

  atop:[4] added d

  rebasing to destination parent: ca1b80f7960a

  merging c

  warning: conflicts while merging c! (edit, then use 'hg resolve --mark')

  evolution failed!

  fix conflict then run 'hg evolve --continue' or use `hg evolve --abort`

  abort: unresolved merge conflicts (see hg help resolve)

  [255]

  $ hg evolve --stop

  stopped the interrupted evolve

  working directory is now at ca1b80f7960a

XXX: maybe we should update wdir to where it was

  $ hg glog

  *  6:ddba58020bc0 added d

  |   () draft

  | o  4:c41c793e0ef1 added d

  | |   () public

  | @  3:ca1b80f7960a added c

  | |   () public

  | o  2:b1661037fa25 added b

  |/    () public

  o  1:c7586e2a9264 added a

  |   () public

  o  0:8fa14d15e168 added hgignore

      () public