Tests for the --abort flag for `hg evolve` command while phase-divergence resolution

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

The `--abort` flag aborts the interuppted evolve by undoing all the work which

was done during resolution i.e. stripping new changesets created, moving

bookmarks back, moving working directory back.

This test contains cases when `hg evolve` is doing phase-divergence resolution.

Setup

=====

  $ cat >> $HGRCPATH <<EOF

  > [phases]

  > publish = False

  > [alias]

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

  > [extensions]

  > EOF

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

  $ hg init abortrepo

  $ cd abortrepo

  $ 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 --abort

  evolve aborted

  working directory is now at ddba58020bc0

  $ 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

When there are multiple phase-divergent changes, resolution of last one resulted

in conflicts

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

  $ echo foo > c

  $ hg amend

  $ hg phase -r ca1b80f --draft --force

  $ hg prev

  0 files updated, 0 files merged, 2 files removed, 0 files unresolved

  [1] added a

  $ hg grab -r ca1b80f

  grabbing 3:ca1b80f7960a "added c"

  $ echo foobar > b

  $ hg add b

  $ hg amend

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

  2 new phase-divergent changesets

  $ hg evolve --list

  e44ebefe4f54: added d

    phase-divergent: c41c793e0ef1 (immutable precursor)

  28cd06b3f801: added c

    phase-divergent: ca1b80f7960a (immutable precursor)

  $ hg evolve --dry-run --all --phase-divergent

  recreate:[7] added d

  atop:[4] added d

  hg rebase --rev e44ebefe4f54 --dest ca1b80f7960a;

  hg update c41c793e0ef1;

  hg revert --all --rev e44ebefe4f54;

  hg commit --msg "phase-divergent update to e44ebefe4f54"

  recreate:[9] added c

  atop:[3] added c

  hg rebase --rev 28cd06b3f801 --dest b1661037fa25;

  hg update ca1b80f7960a;

  hg revert --all --rev 28cd06b3f801;

  hg commit --msg "phase-divergent update to 28cd06b3f801"

  $ hg glog --hidden

  @  9:28cd06b3f801 added c

  |   () draft

  | x  8:9ff8adbe8a24 added c

  |/    () draft

  | *  7:e44ebefe4f54 added d

  |/    () draft

  | x  6:ddba58020bc0 added d

  |/    () draft

  | x  5:cfe30edc6125 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 --all

  recreate:[7] added d

  atop:[4] added d

  rebasing to destination parent: ca1b80f7960a

  computing new diff

  committed as c41c793e0ef1

  recreate:[9] added c

  atop:[3] added c

  rebasing to destination parent: b1661037fa25

  merging b

  warning: conflicts while merging b! (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 --abort

  1 new phase-divergent changesets

  evolve aborted

  working directory is now at 28cd06b3f801

  $ hg glog --hidden

  @  9:28cd06b3f801 added c

  |   () draft

  | x  8:9ff8adbe8a24 added c

  |/    () draft

  | *  7:e44ebefe4f54 added d

  |/    () draft

  | x  6:ddba58020bc0 added d

  |/    () draft

  | x  5:cfe30edc6125 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

When there are multiple conflicted phase-divergence resolution and we abort

after resolving one of them

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

  $ hg up e44ebefe4f54

  1 files updated, 0 files merged, 1 files removed, 0 files unresolved

  $ echo foobar > c

  $ hg amend

  $ hg glog --hidden

  @  10:ef9b72b9b42c added d

  |   () draft

  | *  9:28cd06b3f801 added c

  |/    () draft

  | x  8:9ff8adbe8a24 added c

  |/    () draft

  | x  7:e44ebefe4f54 added d

  |/    () draft

  | x  6:ddba58020bc0 added d

  |/    () draft

  | x  5:cfe30edc6125 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 --all

  recreate:[9] added c

  atop:[3] added c

  rebasing to destination parent: b1661037fa25

  merging b

  warning: conflicts while merging b! (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]

  $ echo watwat > c

  $ hg resolve -m

  (no more unresolved files)

  continue: hg evolve --continue

  $ hg evolve --continue

  evolving 9:28cd06b3f801 "added c"

  computing new diff

  committed as 95d746965290

  recreate:[10] 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 --abort

  evolve aborted

  working directory is now at ef9b72b9b42c

  $ hg glog --hidden

  |   () draft

  | |   () public

  |/    () public

  o  1:c7586e2a9264 added a

  |   () public

  o  0:8fa14d15e168 added hgignore

      () public