view tests/test-grab.t @ 3453:32ed5b6fadd3

grab: add a command to grab a commit and update to it

This patch adds anew command `hg grab` which will pick a commit and put it on
the top of the working directory parent and updates to it.

Earlier grab was an alias for `hg rebase -r <rev> -d .` which is now deleted to
make sure `hg grab` resolves to the grab command and that alias.

Continuing interrupted grab functionality is also there using the evolvestate
class.

Tests are also added for the new introduced command.

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