$ cat >> $HGRCPATH <<EOF

  > [defaults]

  > amend=-d "0 0"

  > [extensions]

  > hgext.rebase=

  > hgext.graphlog=

  > EOF

  $ glog() {

  >   hg glog --template \

  >     '{rev}:{node|short}@{branch}({phase}) bk:[{bookmarks}] {desc|firstline}\n' "$@"

  > }

Test evolve removing the changeset being evolved

  $ hg init empty

  $ cd empty

  $ echo a > a

  $ hg ci -Am adda a

  $ echo b > b

  $ hg ci -Am addb b

  $ echo a >> a

  $ hg ci -m changea

  $ hg bookmark changea

  $ hg up 1

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

  (leaving bookmark changea)

  $ echo a >> a

  $ hg amend -m changea

  1 new unstable changesets

  $ hg evolve -v --confirm

  move:[2] changea

  atop:[4] changea

  perform evolve? [Ny] n

  abort: evolve aborted by user

  [255]

  $ echo y | hg evolve -v --confirm --config ui.interactive=True

  move:[2] changea

  atop:[4] changea

  perform evolve? [Ny] y

  hg rebase -r cce2c55b8965 -d fb9d051ec0a4

  resolving manifests

  $ glog --hidden

  @  4:fb9d051ec0a4@default(draft) bk:[changea] changea

  |

  | x  3:c5727dbded3c@default(draft) bk:[] temporary amend commit for 102a90ea7b4a

  | |

  | | x  2:cce2c55b8965@default(draft) bk:[] changea

  | |/

  | x  1:102a90ea7b4a@default(draft) bk:[] addb

  |/

  o  0:07f494440405@default(draft) bk:[] adda

  $ hg debugobsolete

  102a90ea7b4a3361e4082ed620918c261189a36a fb9d051ec0a450a4aa2ffc8c324979832ef88065 0 (*) {'user': 'test'} (glob)

  c5727dbded3c3a6877cf60d6bb552a76812cb844 0 {102a90ea7b4a3361e4082ed620918c261189a36a} (*) {'user': 'test'} (glob)

  cce2c55b896511e0b6e04173c9450ba822ebc740 0 {102a90ea7b4a3361e4082ed620918c261189a36a} (*) {'user': 'test'} (glob)

Test evolve with conflict

  $ ls

  a

  b

  $ hg pdiff a

  diff -r 07f494440405 a

  --- a/a	* (glob)

  +++ b/a	* (glob)

  @@ -1,1 +1,2 @@

   a

  +a

  $ echo 'newer a' >> a

  $ hg ci -m 'newer a'

  $ hg gdown

  gdown have been deprecated in favor of previous

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

  [4] changea

  $ echo 'a' > a

  $ hg amend

  1 new unstable changesets

  $ hg evolve

  move:[5] newer a

  atop:[7] changea

  merging a

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

  evolve failed!

  fix conflict and run 'hg evolve --continue' or use 'hg update -C .' to abort

  abort: unresolved merge conflicts (see hg help resolve)

  [255]

  $ hg revert -r 'unstable()' a

  $ hg diff

  diff -r 66719795a494 a

  --- a/a	* (glob)

  +++ b/a	* (glob)

  @@ -1,1 +1,3 @@

   a

  +a

  +newer a

  $ hg evolve --continue

  grafting 5:3655f0f50885 "newer a"

  abort: unresolved merge conflicts (see 'hg help resolve')

  [255]

  $ hg resolve -m a

  (no more unresolved files)

  $ hg evolve --continue

  grafting 5:3655f0f50885 "newer a"

Stabilize latecomer with different parent

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

(the same-parent case is handled in test-evolve.t)

  $ glog

  @  8:1cf0aacfd363@default(draft) bk:[] newer a

  |

  o  7:66719795a494@default(draft) bk:[changea] changea

  |

  o  0:07f494440405@default(draft) bk:[] adda

Add another commit

  $ hg gdown

  gdown have been deprecated in favor of previous

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

  [7] changea

  $ echo 'c' > c

  $ hg add c

  $ hg commit -m 'add c'

  created new head

Get a successors of 8 on it

  $ hg grab 8

  rebasing 8:1cf0aacfd363 "newer a"

  ? files updated, 0 files merged, 0 files removed, 0 files unresolved (glob)

Add real change to the successors

  $ echo 'babar' >> a

  $ hg amend

Make precursors public

  $ hg phase --hidden --public 8

  1 new bumped changesets

  $ glog

  @  12:(73b15c7566e9|d5c7ef82d003)@default\(draft\) bk:\[\] newer a (re)

  |

  o  9:7bc2f5967f5e@default(draft) bk:[] add c

  |

  | o  8:1cf0aacfd363@default(public) bk:[] newer a

  |/

  o  7:66719795a494@default(public) bk:[changea] changea

  |

  o  0:07f494440405@default(public) bk:[] adda

Stabilize!

  $ hg evolve --any --dry-run --bumped

  recreate:[12] newer a

  atop:[8] newer a

  hg rebase --rev (73b15c7566e9|d5c7ef82d003) --dest 66719795a494; (re)

  hg update 1cf0aacfd363;

  hg revert --all --rev (73b15c7566e9|d5c7ef82d003); (re)

  hg commit --msg "bumped update to %s" (no-eol)

  $ hg evolve --any --confirm --bumped

  recreate:[12] newer a

  atop:[8] newer a

  perform evolve? [Ny] n

  abort: evolve aborted by user

  [255]

  $ echo y | hg evolve --any --confirm --config ui.interactive=True --bumped

  recreate:[12] newer a

  atop:[8] newer a

  perform evolve? [Ny] y

  rebasing to destination parent: 66719795a494

  computing new diff

  committed as c2c1151aa854

  working directory is now at c2c1151aa854

  $ glog

  @  14:c2c1151aa854@default(draft) bk:[] bumped update to 1cf0aacfd363:

  |

  | o  9:7bc2f5967f5e@default(draft) bk:[] add c

  | |

  o |  8:1cf0aacfd363@default(public) bk:[] newer a

  |/

  o  7:66719795a494@default(public) bk:[changea] changea

  |

  o  0:07f494440405@default(public) bk:[] adda

Stabilize divergent changesets with same parent

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

  $ rm a.orig

  $ hg up 9

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

  $ cat << EOF >> a

  > flore

  > arthur

  > zephir

  > some

  > less

  > conflict

  > EOF

  $ hg ci -m 'More addition'

  $ glog

  @  15:3932c176bbaa@default(draft) bk:[] More addition

  |

  | o  14:(a7cabd7bd9c2|671b9d7eeaec)@default\(draft\) bk:\[\] bumped update to 1cf0aacfd363: (re)

  | |

  o |  9:7bc2f5967f5e@default(draft) bk:[] add c

  | |

  | o  8:1cf0aacfd363@default(public) bk:[] newer a

  |/

  o  7:66719795a494@default(public) bk:[changea] changea

  |

  o  0:07f494440405@default(public) bk:[] adda

  $ echo 'babar' >> a

  $ hg amend

  $ hg up --hidden 15

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

  working directory parent is obsolete!

  (use 'hg evolve' to update to its successor)

  $ mv a a.old

  $ echo 'jungle' > a

  $ cat a.old >> a

  $ rm a.old

  $ hg amend

  2 new divergent changesets

  $ glog

  @  19:eacc9c8240fe@default(draft) bk:[] More addition

  |

  | o  17:d2f173e25686@default(draft) bk:[] More addition

  |/

  | o  14:(a7cabd7bd9c2|671b9d7eeaec)@default\(draft\) bk:\[\] bumped update to 1cf0aacfd363: (re)

  | |

  o |  9:7bc2f5967f5e@default(draft) bk:[] add c

  | |

  | o  8:1cf0aacfd363@default(public) bk:[] newer a

  |/

  o  7:66719795a494@default(public) bk:[changea] changea

  |

  o  0:07f494440405@default(public) bk:[] adda

Stabilize it

  $ hg evolve -qn --confirm --divergent

  merge:[19] More addition

  with: [17] More addition

  base: [15] More addition

  perform evolve? [Ny] n

  abort: evolve aborted by user

  [255]

  $ echo y | hg evolve -qn --confirm --config ui.interactive=True --divergent

  merge:[19] More addition

  with: [17] More addition

  base: [15] More addition

  perform evolve? [Ny] y

  hg update -c eacc9c8240fe &&

  hg merge d2f173e25686 &&

  hg commit -m "auto merge resolving conflict between eacc9c8240fe and d2f173e25686"&&

  hg up -C 3932c176bbaa &&

  hg revert --all --rev tip &&

  hg commit -m "`hg log -r eacc9c8240fe --template={desc}`";

  $ hg evolve -v --divergent

  merge:[19] More addition

  with: [17] More addition

  base: [15] More addition

  merging divergent changeset

  resolving manifests

  merging a

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

  amending changeset eacc9c8240fe

  committing files:

  a

  committing manifest

  committing changelog

  copying changeset 283ccd10e2b8 to 7bc2f5967f5e

  committing files:

  a

  committing manifest

  committing changelog

  committed changeset 21:f344982e63c4

  working directory is now at f344982e63c4

  $ hg st

  $ glog

  @  21:f344982e63c4@default(draft) bk:[] More addition

  |

  | o  14:(a7cabd7bd9c2|671b9d7eeaec)@default\(draft\) bk:\[\] bumped update to 1cf0aacfd363: (re)

  | |

  o |  9:7bc2f5967f5e@default(draft) bk:[] add c

  | |

  | o  8:1cf0aacfd363@default(public) bk:[] newer a

  |/

  o  7:66719795a494@default(public) bk:[changea] changea

  |

  o  0:07f494440405@default(public) bk:[] adda

  $ hg summary

  parent: 21:f344982e63c4 tip

   More addition

  branch: default

  commit: (clean)

  update: 2 new changesets, 2 branch heads (merge)

  phases: 3 draft

  $ hg export .

  # HG changeset patch

  # User test

  # Date 0 0

  #      Thu Jan 01 00:00:00 1970 +0000

  # Node ID f344982e63c462b1e44c0371c804685389e673a9

  # Parent  7bc2f5967f5e4ed277f60a89b7b04cc5d6407ced

  More addition

  diff -r 7bc2f5967f5e -r f344982e63c4 a

  --- a/a	Thu Jan 01 00:00:00 1970 +0000

  +++ b/a	Thu Jan 01 00:00:00 1970 +0000

  @@ -1,1 +1,9 @@

  +jungle

   a

  +flore

  +arthur

  +zephir

  +some

  +less

  +conflict

  +babar

Check conflict during divergence resolution

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

  $ hg up --hidden 15

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

  working directory parent is obsolete!

  (use 'hg evolve' to update to its successor)

  $ echo 'gotta break' >> a

  $ hg amend

  2 new divergent changesets

# reamend so that the case is not the first precursor.

  $ hg amend -m "More addition (2)"

  $ hg phase 'divergent()'

  21: draft

  24: draft

  $ hg evolve -qn --divergent

  hg update -c 0b336205a5d0 &&

  hg merge f344982e63c4 &&

  hg commit -m "auto merge resolving conflict between 0b336205a5d0 and f344982e63c4"&&

  hg up -C 3932c176bbaa &&

  hg revert --all --rev tip &&

  hg commit -m "`hg log -r 0b336205a5d0 --template={desc}`";

  $ hg evolve --divergent

  merge:[24] More addition (2)