** Test for handling of phase divergent changesets by `hg evolve` **
====================================================================

  $ cat >> $HGRCPATH <<EOF
  > [alias]
  > glog = log -GT "{rev}:{node|short} {desc}\n ({bookmarks}) {phase}"
  > EOF

Setting up a public repo
------------------------

  $ hg init public
  $ cd public
  $ echo a > a
  $ mkcommit() {
  >    echo "$1" > "$1"
  >    hg add "$1"
  >    hg ci -m "add $1"
  > }
  $ hg commit -A -m init
  adding a
  $ cd ..

  $ evolvepath=$(echo $(dirname $TESTDIR))/hgext3rd/evolve/

Setting up a private non-publishing repo
----------------------------------------

  $ hg clone -U public private
  $ cd private
  $ cat >> .hg/hgrc <<EOF
  > [extensions]
  > evolve = $evolvepath
  > [ui]
  > logtemplate = {rev}:{node|short}@{branch}({phase}) {desc|firstline}\n
  > [phases]
  > publish = false
  > EOF
  $ cd ..

Setting up couple of more instances of private repo
---------------------------------------------------

  $ cp -a private alice
  $ cp -a private bob

Creating a phase-divergence changeset
-------------------------------------

Alice creating a draft changeset and pushing to main private repo

  $ cd alice
  $ hg update
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ echo a >> a
  $ hg commit -u alice -m 'modify a'
  $ hg push ../private
  pushing to ../private
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files
  $ hg glog
  @  1:4d1169d82e47 modify a
  |   () draft
  o  0:d3873e73d99e init
      () public

Bob pulling from private repo and pushing to the main public repo making the
changeset public

  $ cd ../bob
  $ hg pull ../private
  pulling from ../private
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files
  new changesets 4d1169d82e47
  (run 'hg update' to get a working copy)

  $ hg glog
  o  1:4d1169d82e47 modify a
  |   () draft
  o  0:d3873e73d99e init
      () public

  $ hg push ../public
  pushing to ../public
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files

  $ hg glog
  o  1:4d1169d82e47 modify a
  |   () public
  o  0:d3873e73d99e init
      () public

*But* Alice decided to amend the changeset she had and then pulling from public
repo creating phase-divergent changeset locally

  $ cd ../alice
  $ hg amend -m 'tweak a'
  $ hg pull ../public
  pulling from ../public
  searching for changes
  no changes found
  1 new phase-divergent changesets

  $ hg glog
  @  2:98bb3a6cfe1a tweak a
  |   () draft
  | o  1:4d1169d82e47 modify a
  |/    () public
  o  0:d3873e73d99e init
      () public

Using evolve --list to list phase-divergent changesets
------------------------------------------------------

  $ hg evolve --list
  98bb3a6cfe1a: tweak a
    phase-divergent: 4d1169d82e47 (immutable precursor)
  

Trying to see instability on public changeset

  $ hg evolve -r 4d1169d8 --list
  4d1169d82e47: modify a
  

Understanding phasedivergence using obslog
------------------------------------------

  $ hg obslog -r . --all
  @  98bb3a6cfe1a (2) tweak a
  |
  o  4d1169d82e47 (1) modify a
       rewritten(description) as 98bb3a6cfe1a using amend by test (Thu Jan 01 00:00:00 1970 +0000)
  
Solving the phase divergence using evolve command
--------------------------------------------------

  $ hg evolve
  nothing to evolve on current working copy parent
  (do you want to use --phase-divergent)
  [2]

testing the --confirm option
  $ hg evolve --phase-divergent --confirm <<EOF
  > n
  > EOF
  recreate:[2] tweak a
  atop:[1] modify a
  perform evolve? [Ny] n
  abort: evolve aborted by user
  [255]

testing the --dry-run option

  $ hg evolve --phase-divergent --dry-run
  recreate:[2] tweak a
  atop:[1] modify a
  hg rebase --rev 98bb3a6cfe1a --dest d3873e73d99e;
  hg update 4d1169d82e47;
  hg revert --all --rev 98bb3a6cfe1a;
  hg commit --msg "phase-divergent update to 98bb3a6cfe1a"

  $ hg evolve --phase-divergent
  recreate:[2] tweak a
  atop:[1] modify a
  computing new diff
  committed as 4d1169d82e47
  working directory is now at 4d1169d82e47

  $ hg glog
  @  1:4d1169d82e47 modify a
  |   () public
  o  0:d3873e73d99e init
      () public

Bumped Merge changeset:
-----------------------

We currently cannot automatically solve bumped changeset that is the
product of a merge, we add a test for it.

  $ mkcommit _a
  $ hg up .^
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ mkcommit _b
  created new head
  $ mkcommit _c
  $ hg log -G
  @  5:eeaf70969381@default(draft) add _c
  |
  o  4:6612fc0ddeb6@default(draft) add _b
  |
  | o  3:154ad198ff4a@default(draft) add _a
  |/
  o  1:4d1169d82e47@default(public) modify a
  |
  o  0:d3873e73d99e@default(public) init
  
  $ hg merge 3
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)
  $ hg commit -m "merge"
  $ hg commit --amend -m "New message"
  $ hg phase --public 551127da2a8a --hidden
  1 new phase-divergent changesets
  $ hg log -G
  @    7:b28e84916d8c@default(draft) New message
  |\
  +---o  6:551127da2a8a@default(public) merge
  | |/
  | o  5:eeaf70969381@default(public) add _c
  | |
  | o  4:6612fc0ddeb6@default(public) add _b
  | |
  o |  3:154ad198ff4a@default(public) add _a
  |/
  o  1:4d1169d82e47@default(public) modify a
  |
  o  0:d3873e73d99e@default(public) init
  
  $ hg evolve --all --phase-divergent
  skipping b28e84916d8c : we do not handle merge yet