Test for the grab command

  $ cat >> $HGRCPATH <<EOF

  > [alias]

  > glog = log -G -T "{rev}:{node|short} {desc}\n"

  > [extensions]

  > EOF

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

  $ mkcommit() {

  >    echo "$1" > "$1"

  >    hg add "$1"

  >    hg ci -m "add $1"

  > }

  $ hg init repo

  $ cd repo

  $ hg help grab

  hg grab [-r] rev

  grabs a commit, move it on the top of working directory parent and

      updates to it.

  options:

   -r --rev VALUE revision to grab

      --continue  continue interrupted grab

      --abort     abort interrupted grab

  (some details hidden, use --verbose to show complete help)

  $ mkcommit a

  $ mkcommit b

  $ mkcommit c

  $ hg glog

  @  2:4538525df7e2 add c

  |

  o  1:7c3bad9141dc add b

  |

  o  0:1f0dee641bb7 add a

Grabbing an ancestor

  $ hg grab -r 7c3bad9141dc

  abort: cannot grab an ancestor revision

  [255]

Specifying multiple revisions to grab

  $ hg grab 1f0dee641bb7 -r 7c3bad9141dc

  abort: specify just one revision

  [255]

Specifying no revisions to grab

  $ hg grab

  abort: empty revision set

  [255]

Continuing without interrupted grab

  $ hg grab --continue

  abort: no interrupted grab state exists

  [255]

Aborting without interrupted grab

  $ hg grab --abort

  abort: no interrupted grab state exists

  [255]

Specifying both continue and revs

  $ hg up 1f0dee641bb7

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

  $ hg grab -r 4538525df7e2 --continue

  abort: cannot specify both --continue and revision

  [255]

Making new branch heads

  $ mkcommit x

  created new head

  $ mkcommit y

  $ hg glog

  @  4:d46dc301d92f add y

  |

  o  3:8e224524cd09 add x

  |

  | o  2:4538525df7e2 add c

  | |

  | o  1:7c3bad9141dc add b

  |/

  o  0:1f0dee641bb7 add a

Grabbing a revision

  $ hg grab 7c3bad9141dc

  grabbing 1:7c3bad9141dc "add b"

  1 new orphan changesets

  $ hg glog

  @  5:7c15c05db6fa add b

  |

  o  4:d46dc301d92f add y

  |

  o  3:8e224524cd09 add x

  |

  | *  2:4538525df7e2 add c

  | |

  | x  1:7c3bad9141dc add b

  |/

  o  0:1f0dee641bb7 add a

When grab does not create any changes

  $ hg graft -r 4538525df7e2

  grafting 2:4538525df7e2 "add c"

  $ hg glog

  @  6:c4636a81ebeb add c

  |

  o  5:7c15c05db6fa add b

  |

  o  4:d46dc301d92f add y

  |

  o  3:8e224524cd09 add x

  |

  | *  2:4538525df7e2 add c

  | |

  | x  1:7c3bad9141dc add b

  |/

  o  0:1f0dee641bb7 add a

  $ hg grab -r 4538525df7e2

  grabbing 2:4538525df7e2 "add c"

  note: grab of 2:4538525df7e2 created no changes to commit

  $ hg glog

  @  6:c4636a81ebeb add c

  |

  o  5:7c15c05db6fa add b

  |

  o  4:d46dc301d92f add y

  |

  o  3:8e224524cd09 add x

  |

  o  0:1f0dee641bb7 add a

interrupted grab

  $ hg up d46dc301d92f

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

  $ echo foo > c

  $ hg ci -Aqm "foo to c"

  $ hg grab -r c4636a81ebeb

  grabbing 6:c4636a81ebeb "add c"

  merging c

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

  unresolved merge conflicts (see hg help resolve)

  [1]

  $ echo foobar > c

  $ hg resolve --all --mark

  (no more unresolved files)

  $ hg grab --continue

  $ hg glog

  @  8:44e155eb95c7 add c

  |

  o  7:2ccc03d1d096 foo to c

  |

  | o  5:7c15c05db6fa add b

  |/

  o  4:d46dc301d92f add y

  |

  o  3:8e224524cd09 add x

  |

  o  0:1f0dee641bb7 add a

Testing the abort functionality of hg grab

  $ echo foo > b

  $ hg ci -Aqm "foo to b"

  $ hg glog -r .^::

  @  9:902d4f4602bb foo to b

  |

  o  8:44e155eb95c7 add c

  |

  ~

  $ hg grab -r 7c15c05db6fa

  grabbing 5:7c15c05db6fa "add b"

  merging b

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

  unresolved merge conflicts (see hg help resolve)

  [1]

  $ hg grab --abort

  aborting grab, updating to 902d4f4602bb

  $ hg glog

  @  9:902d4f4602bb foo to b

  |

  o  8:44e155eb95c7 add c

  |

  o  7:2ccc03d1d096 foo to c

  |

  | o  5:7c15c05db6fa add b

  |/

  o  4:d46dc301d92f add y

  |

  o  3:8e224524cd09 add x

  |

  o  0:1f0dee641bb7 add a

Trying to grab a public changeset

  $ hg phase -r 7c15c05db6fa -p

  $ hg grab -r 7c15c05db6fa

  abort: cannot grab public changesets: 7c15c05db6fa

  (see 'hg help phases' for details)

  [255]

  $ hg glog

  @  9:902d4f4602bb foo to b

  |

  o  8:44e155eb95c7 add c

  |

  o  7:2ccc03d1d096 foo to c

  |

  | o  5:7c15c05db6fa add b

  |/

  o  4:d46dc301d92f add y

  |

  o  3:8e224524cd09 add x

  |

  o  0:1f0dee641bb7 add a