comparison tests/test-evolve.t @ 6398:270223576b7f mercurial-5.3

test-compat: merge mercurial-5.4 into mercurial-5.3

6352:0bf00051bbc7

  4	feature-A: a nifty feature - test
  0	: base - test

phase change turning obsolete changeset public issues a phase divergence warning

  $ hg phase --hidden --public 99833d22b0c6
  1 new phase-divergent changesets

all solving phase-divergent

  $ glog
  @  6:47d52a103155@default(draft) another feature that rox
  |
  | o  5:99833d22b0c6@default(public) another feature (child of ba0ec09b1bab)
  |/
  o  4:ba0ec09b1bab@default(public) a nifty feature
  |
  o  0:e55e0562ee93@default(public) base
  
  $ hg evolve --any --traceback --phase-divergent
  recreate:[6] another feature that rox
  atop:[5] another feature (child of ba0ec09b1bab)
  committed as aca219761afb
  working directory is now at aca219761afb
  $ glog
  @  7:aca219761afb@default(draft) phase-divergent update to 99833d22b0c6:
  |
  o  5:99833d22b0c6@default(public) another feature (child of ba0ec09b1bab)
  |
  o  4:ba0ec09b1bab@default(public) a nifty feature
  |
  o  0:e55e0562ee93@default(public) base
  
  $ hg diff --hidden -r aca219761afb -r 47d52a103155
  $ hg diff -r aca219761afb^ -r aca219761afb
  diff --git a/main-file-1 b/main-file-1
  --- a/main-file-1
  +++ b/main-file-1
  @@ -3,1 +3,1 @@
  -Zwei

test evolve --all
  $ sed -i'' -e s/deux/to/ main-file-1
  $ hg commit -m 'dansk 2!'
  $ sed -i'' -e s/Three/tre/ main-file-1
  $ hg commit -m 'dansk 3!'
  $ hg update aca219761afb
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ sed -i'' -e s/Un/Én/ main-file-1
  $ hg commit --amend -m 'dansk!'
  2 new orphan changesets

  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg fold --from .^ --message "Folding with custom commit message"
  2 changesets folded
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ glog
  @  13:284c0d45770d@default(draft) Folding with custom commit message
  |
  o  10:9975c016fe7b@default(draft) dansk!
  |
  o  5:99833d22b0c6@default(public) another feature (child of ba0ec09b1bab)
  |
  o  4:ba0ec09b1bab@default(public) a nifty feature
  |
  o  0:e55e0562ee93@default(public) base
  

  $ hg fold --from .^ --logfile commit-message
  2 changesets folded
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg qlog
  14 - 8693d0f277b8 A longer
                    commit message (draft)
  5 - 99833d22b0c6 another feature (child of ba0ec09b1bab) (public)
  4 - ba0ec09b1bab a nifty feature (public)
  0 - e55e0562ee93 base (public)

  $ cd ..

  atop:[9] a1__
  (leaving bookmark testbookmark)
  $ ls .hg/bookmarks*
  .hg/bookmarks
  $ glog
  o  10:d952e93add6f@mybranch(draft) a2
  |
  @  9:9f8b83c2e7f3@default(draft) a1__
  |
  | *  8:777c26ca5e78@mybranch(draft) a3
  | |
  | x  7:eb07e22a0e63@mybranch(draft) a2
  | |
  | x  6:faafc6cea0ba@default(draft) a1_
  |/
  o  0:07c1c36d9ef0@default(draft) a0
  

Possibility to select what instability to solve first, asking for
phase-divergent before content-divergent
  $ hg revert -r d952e93add6f --all
  reverting a
  $ hg log -G --template '{rev} [{branch}] {desc|firstline}\n'
  o  10 [mybranch] a2
  |
  @  9 [default] a1__

  o  0 [default] a0
  
  $ echo "hello world" > newfile
  $ hg add newfile
  $ hg commit -m "add new file bumped" -o 10
  $ hg phase --public --hidden d952e93add6f
  1 new phase-divergent changesets
  $ hg log -G
  @  11	: add new file bumped - test
  |
  | o  10	: a2 - test

  o  0	: a0 - test
  
  $ hg evolve -r "desc('add new file bumped')" --phase-divergent
  recreate:[11] add new file bumped
  atop:[10] a2
  committed as a8bb31d4b7f2
  working directory is now at a8bb31d4b7f2
  $ hg evolve --any
  move:[8] a3
  atop:[12] phase-divergent update to d952e93add6f:
  $ glog
  o  13:b88539ad24d7@default(draft) a3
  |
  @  12:a8bb31d4b7f2@default(draft) phase-divergent update to d952e93add6f:
  |
  o  10:d952e93add6f@mybranch(public) a2
  |
  o  9:9f8b83c2e7f3@default(public) a1__
  |
  o  0:07c1c36d9ef0@default(public) a0
  

Check that we can resolve instabilities in a revset with more than one commit
  $ hg up b88539ad24d7 -C
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ mkcommit gg
  $ hg up b88539ad24d7
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ mkcommit gh
  created new head
  $ hg up b88539ad24d7
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ printf "newline\nnewline\n" >> a
  $ hg log -G
  o  15	: add gh - test
  |
  | o  14	: add gg - test
  |/
  @  13	: a3 - test
  |
  o  12	: phase-divergent update to d952e93add6f: - test
  |
  o  10	: a2 - test
  |
  o  9	testbookmark: a1__ - test
  |
  o  0	: a0 - test
  
  $ hg amend
  2 new orphan changesets
  $ glog
  @  16:0cf3707e8971@default(draft) a3
  |
  | *  15:daa1ff1c7fbd@default(draft) add gh
  | |
  | | *  14:484fb3cfa7f2@default(draft) add gg
  | |/
  | x  13:b88539ad24d7@default(draft) a3
  |/
  o  12:a8bb31d4b7f2@default(draft) phase-divergent update to d952e93add6f:
  |
  o  10:d952e93add6f@mybranch(public) a2
  |
  o  9:9f8b83c2e7f3@default(public) a1__
  |
  o  0:07c1c36d9ef0@default(public) a0
  

Evolving an empty revset should do nothing
  $ hg evolve --rev "daa1ff1c7fbd and 484fb3cfa7f2"
  set of specified revisions is empty
  [1]

  $ hg evolve --rev "b88539ad24d7::" --phase-divergent
  no phasedivergent changesets in specified revisions
  (do you want to use --orphan)
  [2]
  $ hg evolve --rev "b88539ad24d7::" --orphan
  move:[14] add gg
  atop:[16] a3
  move:[15] add gh
  atop:[16] a3
  $ glog
  o  18:0c049e4e5422@default(draft) add gh
  |
  | o  17:98e171e2f272@default(draft) add gg
  |/
  @  16:0cf3707e8971@default(draft) a3
  |
  o  12:a8bb31d4b7f2@default(draft) phase-divergent update to d952e93add6f:
  |
  o  10:d952e93add6f@mybranch(public) a2
  |
  o  9:9f8b83c2e7f3@default(public) a1__
  |
  o  0:07c1c36d9ef0@default(public) a0
  

Shows "use 'hg evolve' to..." hints iff the evolve command is enabled

  $ hg --hidden up 14
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
  updated to hidden changeset 484fb3cfa7f2
  (hidden revision '484fb3cfa7f2' was rewritten as: 98e171e2f272)
  working directory parent is obsolete! (484fb3cfa7f2)
  $ cat >> $HGRCPATH <<EOF
  > [experimental]
  > evolutioncommands=evolve
  > EOF
  $ hg --hidden up 15
  1 files updated, 0 files merged, 1 files removed, 0 files unresolved
  updated to hidden changeset daa1ff1c7fbd
  (hidden revision 'daa1ff1c7fbd' was rewritten as: 0c049e4e5422)
  working directory parent is obsolete! (daa1ff1c7fbd)
  (use 'hg evolve' to update to its successor: 0c049e4e5422)

Restore all of the evolution features

  $ cat >> $HGRCPATH <<EOF
  > [experimental]
  > evolution=all
  > EOF

Check hg evolve --rev on singled out commit
  $ hg up 98e171e2f272 -C
  2 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ mkcommit j1
  $ mkcommit j2
  $ mkcommit j3
  $ hg up .^^
  0 files updated, 0 files merged, 2 files removed, 0 files unresolved
  $ echo "hello" > j4
  $ hg add j4
  $ hg amend
  2 new orphan changesets
  $ glog -r "0cf3707e8971::"
  @  22:274b6cd0c101@default(draft) add j1
  |
  | *  21:89e4f7e8feb5@default(draft) add j3
  | |
  | *  20:4cd61236beca@default(draft) add j2
  | |
  | x  19:0fd8bfb02de4@default(draft) add j1
  |/
  | o  18:0c049e4e5422@default(draft) add gh
  | |
  o |  17:98e171e2f272@default(draft) add gg
  |/
  o  16:0cf3707e8971@default(draft) a3
  |
  ~

  $ hg evolve --rev 89e4f7e8feb5 --any
  abort: cannot specify both "--rev" and "--any"
  [255]
  $ hg evolve --rev 89e4f7e8feb5
  skipping 89e4f7e8feb5, consider including orphan ancestors

Check that uncommit respects the allowunstable option
With only createmarkers we can only uncommit on a head
  $ cat >> $HGRCPATH <<EOF
  > [experimental]
  > evolution=createmarkers, allnewcommands
  > EOF
  $ hg up 274b6cd0c101^
  0 files updated, 0 files merged, 2 files removed, 0 files unresolved
  $ hg uncommit --all
  abort: uncommit will orphan 4 descendants
  (see 'hg help evolution.instability')
  [255]
  $ hg up 274b6cd0c101
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg uncommit --all
  new changeset is empty
  (use 'hg prune .' to remove it)
  $ glog -r "0cf3707e8971::"
  @  23:0ef9ff75f8e2@default(draft) add j1
  |
  | *  21:89e4f7e8feb5@default(draft) add j3
  | |
  | *  20:4cd61236beca@default(draft) add j2
  | |
  | x  19:0fd8bfb02de4@default(draft) add j1
  |/
  | o  18:0c049e4e5422@default(draft) add gh
  | |
  o |  17:98e171e2f272@default(draft) add gg
  |/
  o  16:0cf3707e8971@default(draft) a3
  |
  ~

Check that prune respects the allowunstable option
  $ hg up -C .
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg up 0c049e4e5422
  1 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ hg evolve --all
  nothing to evolve on current working copy parent
  (2 other orphan in the repository, do you want --any or --rev)
  [2]
  $ hg evolve --all --any
  move:[20] add j2
  atop:[23] add j1
  move:[21] add j3
  $ glog -r "0cf3707e8971::"
  o  25:0d9203b74542@default(draft) add j3
  |
  o  24:f1b85956c48c@default(draft) add j2
  |
  o  23:0ef9ff75f8e2@default(draft) add j1
  |
  | @  18:0c049e4e5422@default(draft) add gh
  | |
  o |  17:98e171e2f272@default(draft) add gg
  |/
  o  16:0cf3707e8971@default(draft) a3
  |
  ~
  $ hg up 98e171e2f272
  1 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ mkcommit c5_
  created new head
  $ hg prune '0ef9ff75f8e2 + f1b85956c48c'
  abort: prune will orphan 1 descendants
  (see 'hg help evolution.instability')
  [255]
  $ hg prune '98e171e2f272::0d9203b74542'
  abort: prune will orphan 1 descendants
  (see 'hg help evolution.instability')
  [255]
  $ hg prune '0ef9ff75f8e2::'
  3 changesets pruned
  $ glog -r "0cf3707e8971::"
  @  26:4c6f6f6d1976@default(draft) add c5_
  |
  | o  18:0c049e4e5422@default(draft) add gh
  | |
  o |  17:98e171e2f272@default(draft) add gg
  |/
  o  16:0cf3707e8971@default(draft) a3
  |
  ~

Check that fold respects the allowunstable option

(most of this has been moved to test-fold.t)

  $ hg up 0cf3707e8971
  0 files updated, 0 files merged, 2 files removed, 0 files unresolved
  $ mkcommit unstableifparentisfolded
  created new head
  $ glog -r "0cf3707e8971::"
  @  27:2d1b55e10be9@default(draft) add unstableifparentisfolded
  |
  | o  26:4c6f6f6d1976@default(draft) add c5_
  | |
  +---o  18:0c049e4e5422@default(draft) add gh
  | |
  | o  17:98e171e2f272@default(draft) add gg
  |/
  o  16:0cf3707e8971@default(draft) a3
  |
  ~

  $ hg fold --exact "98e171e2f272::"
  2 changesets folded

Check that dirstate changes are kept at failure for conflicts (issue4966)
----------------------------------------

  $ echo "will cause conflict at evolve" > newfile
  $ echo "newly added" > newlyadded
  $ hg add newlyadded
  $ hg commit -m "will cause conflict at evolve"

  $ glog -r "0cf3707e8971::"
  @  31:5be050657ca5@default(draft) will cause conflict at evolve
  |
  o  30:748126f98ff1@default(draft) will be evolved safely
  |
  o  29:4548f3a8db2c@default(draft) will be amended
  |
  | o  28:92ca6f3984de@default(draft) add gg
  | |
  o |  27:2d1b55e10be9@default(draft) add unstableifparentisfolded
  |/
  | o  18:0c049e4e5422@default(draft) add gh
  |/
  o  16:0cf3707e8971@default(draft) a3
  |
  ~

  $ hg update -q -r "desc('will be amended')"
  $ echo "amended" > newfile

  unresolved merge conflicts
  (see 'hg help evolve.interrupted')
  [1]

  $ glog -r "desc('add unstableifparentisfolded')::" --hidden
  @  33:b9acdb1af6d5@default(draft) will be evolved safely
  |
  o  32:6ec468e4cb98@default(draft) amended
  |
  | *  31:5be050657ca5@default(draft) will cause conflict at evolve
  | |
  | x  30:748126f98ff1@default(draft) will be evolved safely
  | |
  | x  29:4548f3a8db2c@default(draft) will be amended
  |/
  o  27:2d1b55e10be9@default(draft) add unstableifparentisfolded
  |
  ~

  $ hg status newlyadded
  A newlyadded

6398:270223576b7f

  4	feature-A: a nifty feature - test
  0	: base - test

phase change turning obsolete changeset public issues a phase divergence warning

  $ hg phase --hidden --public 5c9c8d9c2e4e
  1 new phase-divergent changesets

all solving phase-divergent

  $ glog
  @  6:47d52a103155@default(draft) another feature that rox
  |
  | o  5:5c9c8d9c2e4e@default(public) another feature (child of ba0ec09b1bab)
  |/
  o  4:ba0ec09b1bab@default(public) a nifty feature
  |
  o  0:e55e0562ee93@default(public) base
  
  $ hg evolve --any --traceback --phase-divergent
  recreate:[6] another feature that rox
  atop:[5] another feature (child of ba0ec09b1bab)
  committed as acecd63a9288
  working directory is now at acecd63a9288
  $ glog
  @  7:acecd63a9288@default(draft) phase-divergent update to 5c9c8d9c2e4e:
  |
  o  5:5c9c8d9c2e4e@default(public) another feature (child of ba0ec09b1bab)
  |
  o  4:ba0ec09b1bab@default(public) a nifty feature
  |
  o  0:e55e0562ee93@default(public) base
  
  $ hg diff --hidden -r acecd63a9288 -r 47d52a103155
  $ hg diff -r acecd63a9288^ -r acecd63a9288
  diff --git a/main-file-1 b/main-file-1
  --- a/main-file-1
  +++ b/main-file-1
  @@ -3,1 +3,1 @@
  -Zwei

test evolve --all
  $ sed -i'' -e s/deux/to/ main-file-1
  $ hg commit -m 'dansk 2!'
  $ sed -i'' -e s/Three/tre/ main-file-1
  $ hg commit -m 'dansk 3!'
  $ hg update acecd63a9288
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ sed -i'' -e s/Un/Én/ main-file-1
  $ hg commit --amend -m 'dansk!'
  2 new orphan changesets

  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg fold --from .^ --message "Folding with custom commit message"
  2 changesets folded
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ glog
  @  13:90308a3a84bd@default(draft) Folding with custom commit message
  |
  o  10:74d61108f94b@default(draft) dansk!
  |
  o  5:5c9c8d9c2e4e@default(public) another feature (child of ba0ec09b1bab)
  |
  o  4:ba0ec09b1bab@default(public) a nifty feature
  |
  o  0:e55e0562ee93@default(public) base
  

  $ hg fold --from .^ --logfile commit-message
  2 changesets folded
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg qlog
  14 - c07a8bc54a51 A longer
                    commit message (draft)
  5 - 5c9c8d9c2e4e another feature (child of ba0ec09b1bab) (public)
  4 - ba0ec09b1bab a nifty feature (public)
  0 - e55e0562ee93 base (public)

  $ cd ..

  atop:[9] a1__
  (leaving bookmark testbookmark)
  $ ls .hg/bookmarks*
  .hg/bookmarks
  $ glog
  o  10:f37ed7a60f43@mybranch(draft) a2
  |
  @  9:9f8b83c2e7f3@default(draft) a1__
  |
  | *  8:c7661e655801@mybranch(draft) a3
  | |
  | x  7:5406c5cfee42@mybranch(draft) a2
  | |
  | x  6:faafc6cea0ba@default(draft) a1_
  |/
  o  0:07c1c36d9ef0@default(draft) a0
  

Possibility to select what instability to solve first, asking for
phase-divergent before content-divergent
  $ hg revert -r f37ed7a60f43 --all
  reverting a
  $ hg log -G --template '{rev} [{branch}] {desc|firstline}\n'
  o  10 [mybranch] a2
  |
  @  9 [default] a1__

  o  0 [default] a0
  
  $ echo "hello world" > newfile
  $ hg add newfile
  $ hg commit -m "add new file bumped" -o 10
  $ hg phase --public --hidden f37ed7a60f43
  1 new phase-divergent changesets
  $ hg log -G
  @  11	: add new file bumped - test
  |
  | o  10	: a2 - test

  o  0	: a0 - test
  
  $ hg evolve -r "desc('add new file bumped')" --phase-divergent
  recreate:[11] add new file bumped
  atop:[10] a2
  committed as db294883bd68
  working directory is now at db294883bd68
  $ hg evolve --any
  move:[8] a3
  atop:[12] phase-divergent update to f37ed7a60f43:
  $ glog
  o  13:0210bf7b6518@default(draft) a3
  |
  @  12:db294883bd68@default(draft) phase-divergent update to f37ed7a60f43:
  |
  o  10:f37ed7a60f43@mybranch(public) a2
  |
  o  9:9f8b83c2e7f3@default(public) a1__
  |
  o  0:07c1c36d9ef0@default(public) a0
  

Check that we can resolve instabilities in a revset with more than one commit
  $ hg up 0210bf7b6518 -C
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ mkcommit gg
  $ hg up 0210bf7b6518
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ mkcommit gh
  created new head
  $ hg up 0210bf7b6518
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ printf "newline\nnewline\n" >> a
  $ hg log -G
  o  15	: add gh - test
  |
  | o  14	: add gg - test
  |/
  @  13	: a3 - test
  |
  o  12	: phase-divergent update to f37ed7a60f43: - test
  |
  o  10	: a2 - test
  |
  o  9	testbookmark: a1__ - test
  |
  o  0	: a0 - test
  
  $ hg amend
  2 new orphan changesets
  $ glog
  @  16:5478ae0ce2d9@default(draft) a3
  |
  | *  15:fb5702c4d3e6@default(draft) add gh
  | |
  | | *  14:148850890f43@default(draft) add gg
  | |/
  | x  13:0210bf7b6518@default(draft) a3
  |/
  o  12:db294883bd68@default(draft) phase-divergent update to f37ed7a60f43:
  |
  o  10:f37ed7a60f43@mybranch(public) a2
  |
  o  9:9f8b83c2e7f3@default(public) a1__
  |
  o  0:07c1c36d9ef0@default(public) a0
  

Evolving an empty revset should do nothing
  $ hg evolve --rev "fb5702c4d3e6 and 148850890f43"
  set of specified revisions is empty
  [1]

  $ hg evolve --rev "0210bf7b6518::" --phase-divergent
  no phasedivergent changesets in specified revisions
  (do you want to use --orphan)
  [2]
  $ hg evolve --rev "0210bf7b6518::" --orphan
  move:[14] add gg
  atop:[16] a3
  move:[15] add gh
  atop:[16] a3
  $ glog
  o  18:5f8a4fc86068@default(draft) add gh
  |
  | o  17:a38ac764661b@default(draft) add gg
  |/
  @  16:5478ae0ce2d9@default(draft) a3
  |
  o  12:db294883bd68@default(draft) phase-divergent update to f37ed7a60f43:
  |
  o  10:f37ed7a60f43@mybranch(public) a2
  |
  o  9:9f8b83c2e7f3@default(public) a1__
  |
  o  0:07c1c36d9ef0@default(public) a0
  

Shows "use 'hg evolve' to..." hints iff the evolve command is enabled

  $ hg --hidden up 14
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
  updated to hidden changeset 148850890f43
  (hidden revision '148850890f43' was rewritten as: a38ac764661b)
  working directory parent is obsolete! (148850890f43)
  $ cat >> $HGRCPATH <<EOF
  > [experimental]
  > evolutioncommands=evolve
  > EOF
  $ hg --hidden up 15
  1 files updated, 0 files merged, 1 files removed, 0 files unresolved
  updated to hidden changeset fb5702c4d3e6
  (hidden revision 'fb5702c4d3e6' was rewritten as: 5f8a4fc86068)
  working directory parent is obsolete! (fb5702c4d3e6)
  (use 'hg evolve' to update to its successor: 5f8a4fc86068)

Restore all of the evolution features

  $ cat >> $HGRCPATH <<EOF
  > [experimental]
  > evolution=all
  > EOF

Check hg evolve --rev on singled out commit
  $ hg up a38ac764661b -C
  2 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ mkcommit j1
  $ mkcommit j2
  $ mkcommit j3
  $ hg up .^^
  0 files updated, 0 files merged, 2 files removed, 0 files unresolved
  $ echo "hello" > j4
  $ hg add j4
  $ hg amend
  2 new orphan changesets
  $ glog -r "5478ae0ce2d9::"
  @  22:cc75952078c6@default(draft) add j1
  |
  | *  21:677a629bd09c@default(draft) add j3
  | |
  | *  20:0208ef487f3a@default(draft) add j2
  | |
  | x  19:30d3ac01aa58@default(draft) add j1
  |/
  | o  18:5f8a4fc86068@default(draft) add gh
  | |
  o |  17:a38ac764661b@default(draft) add gg
  |/
  o  16:5478ae0ce2d9@default(draft) a3
  |
  ~

  $ hg evolve --rev 677a629bd09c --any
  abort: cannot specify both "--rev" and "--any"
  [255]
  $ hg evolve --rev 677a629bd09c
  skipping 677a629bd09c, consider including orphan ancestors

Check that uncommit respects the allowunstable option
With only createmarkers we can only uncommit on a head
  $ cat >> $HGRCPATH <<EOF
  > [experimental]
  > evolution=createmarkers, allnewcommands
  > EOF
  $ hg up cc75952078c6^
  0 files updated, 0 files merged, 2 files removed, 0 files unresolved
  $ hg uncommit --all
  abort: cannot uncommit changeset, as that will orphan 4 descendants
  (see 'hg help evolution.instability')
  [255]
  $ hg up cc75952078c6
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg uncommit --all
  new changeset is empty
  (use 'hg prune .' to remove it)
  $ glog -r "5478ae0ce2d9::"
  @  23:4086309bffa5@default(draft) add j1
  |
  | *  21:677a629bd09c@default(draft) add j3
  | |
  | *  20:0208ef487f3a@default(draft) add j2
  | |
  | x  19:30d3ac01aa58@default(draft) add j1
  |/
  | o  18:5f8a4fc86068@default(draft) add gh
  | |
  o |  17:a38ac764661b@default(draft) add gg
  |/
  o  16:5478ae0ce2d9@default(draft) a3
  |
  ~

Check that prune respects the allowunstable option
  $ hg up -C .
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg up 5f8a4fc86068
  1 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ hg evolve --all
  nothing to evolve on current working copy parent
  (2 other orphan in the repository, do you want --any or --rev)
  [2]
  $ hg evolve --all --any
  move:[20] add j2
  atop:[23] add j1
  move:[21] add j3
  $ glog -r "5478ae0ce2d9::"
  o  25:bc61f0de3ab8@default(draft) add j3
  |
  o  24:57c9733eb876@default(draft) add j2
  |
  o  23:4086309bffa5@default(draft) add j1
  |
  | @  18:5f8a4fc86068@default(draft) add gh
  | |
  o |  17:a38ac764661b@default(draft) add gg
  |/
  o  16:5478ae0ce2d9@default(draft) a3
  |
  ~
  $ hg up a38ac764661b
  1 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ mkcommit c5_
  created new head
  $ hg prune '4086309bffa5 + 57c9733eb876'
  abort: cannot prune changeset, as that will orphan 1 descendants
  (see 'hg help evolution.instability')
  [255]
  $ hg prune 'a38ac764661b::bc61f0de3ab8'
  abort: cannot prune changeset, as that will orphan 1 descendants
  (see 'hg help evolution.instability')
  [255]
  $ hg prune '4086309bffa5::'
  3 changesets pruned
  $ glog -r "5478ae0ce2d9::"
  @  26:0ea0aab97a68@default(draft) add c5_
  |
  | o  18:5f8a4fc86068@default(draft) add gh
  | |
  o |  17:a38ac764661b@default(draft) add gg
  |/
  o  16:5478ae0ce2d9@default(draft) a3
  |
  ~

Check that fold respects the allowunstable option

(most of this has been moved to test-fold.t)

  $ hg up 5478ae0ce2d9
  0 files updated, 0 files merged, 2 files removed, 0 files unresolved
  $ mkcommit unstableifparentisfolded
  created new head
  $ glog -r "5478ae0ce2d9::"
  @  27:a590ee1f960d@default(draft) add unstableifparentisfolded
  |
  | o  26:0ea0aab97a68@default(draft) add c5_
  | |
  +---o  18:5f8a4fc86068@default(draft) add gh
  | |
  | o  17:a38ac764661b@default(draft) add gg
  |/
  o  16:5478ae0ce2d9@default(draft) a3
  |
  ~

  $ hg fold --exact "a38ac764661b::"
  2 changesets folded

Check that dirstate changes are kept at failure for conflicts (issue4966)
----------------------------------------

  $ echo "will cause conflict at evolve" > newfile
  $ echo "newly added" > newlyadded
  $ hg add newlyadded
  $ hg commit -m "will cause conflict at evolve"

  $ glog -r "5478ae0ce2d9::"
  @  31:835945a2b5c1@default(draft) will cause conflict at evolve
  |
  o  30:c4fb0d23465b@default(draft) will be evolved safely
  |
  o  29:45e2cc1499ee@default(draft) will be amended
  |
  | o  28:7992c4aad71c@default(draft) add gg
  | |
  o |  27:a590ee1f960d@default(draft) add unstableifparentisfolded
  |/
  | o  18:5f8a4fc86068@default(draft) add gh
  |/
  o  16:5478ae0ce2d9@default(draft) a3
  |
  ~

  $ hg update -q -r "desc('will be amended')"
  $ echo "amended" > newfile

  unresolved merge conflicts
  (see 'hg help evolve.interrupted')
  [1]

  $ glog -r "desc('add unstableifparentisfolded')::" --hidden
  @  33:bdb2d79645eb@default(draft) will be evolved safely
  |
  o  32:d788a38aecda@default(draft) amended
  |
  | *  31:835945a2b5c1@default(draft) will cause conflict at evolve
  | |
  | x  30:c4fb0d23465b@default(draft) will be evolved safely
  | |
  | x  29:45e2cc1499ee@default(draft) will be amended
  |/
  o  27:a590ee1f960d@default(draft) add unstableifparentisfolded
  |
  ~

  $ hg status newlyadded
  A newlyadded