$ cat >> $HGRCPATH << EOF

  > [extensions]

  > graphlog=

  > [phases]

  > # public changeset are not obsolete

  > publish=false

  > EOF

  $ mkcommit() {

  >    echo "$1" > "$1"

  >    hg add "$1"

  >    hg ci -m "add $1"

  > }

  $ getid() {

  >    hg id --debug --hidden -ir "desc('$1')"

  > }

  $ cat > debugkeys.py <<EOF

  > def reposetup(ui, repo):

  >     class debugkeysrepo(repo.__class__):

  >         def listkeys(self, namespace):

  >             ui.write('listkeys %s\n' % (namespace,))

  >             return super(debugkeysrepo, self).listkeys(namespace)

  > 

  >     if repo.local():

  >         repo.__class__ = debugkeysrepo

  > EOF

  $ hg init tmpa

  $ cd tmpa

  $ mkcommit kill_me

Checking that the feature is properly disabled

  $ hg debugobsolete -d '0 0' `getid kill_me` -u babar

  abort: obsolete feature is not enabled on this repo

  [255]

Enabling it

  $ cat > ../obs.py << EOF

  > import mercurial.obsolete

  > mercurial.obsolete._enabled = True

  > EOF

  $ echo '[extensions]' >> $HGRCPATH

  $ echo "obs=${TESTTMP}/obs.py" >> $HGRCPATH

Killing a single changeset without replacement

  $ hg debugobsolete 0

  abort: changeset references must be full hexadecimal node identifiers

  [255]

  $ hg debugobsolete '00'

  abort: changeset references must be full hexadecimal node identifiers

  [255]

  $ hg debugobsolete -d '0 0' `getid kill_me` -u babar

  $ hg debugobsolete

  97b7c2d76b1845ed3eb988cd612611e72406cef0 0 {'date': '0 0', 'user': 'babar'}

  $ cd ..

Killing a single changeset with replacement

  $ hg init tmpb

  $ cd tmpb

  $ mkcommit a

  $ mkcommit b

  $ mkcommit original_c

  $ hg up "desc('b')"

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

  $ mkcommit new_c

  created new head

  $ hg log -r 'hidden()' --template '{rev}:{node|short} {desc}\n' --hidden

  $ hg debugobsolete --flag 12 `getid original_c`  `getid new_c` -d '56 12'

  $ hg log -r 'hidden()' --template '{rev}:{node|short} {desc}\n' --hidden

  2:245bde4270cd add original_c

  $ hg debugobsolete

  245bde4270cd1072a27757984f9cda8ba26f08ca cdbce2fbb16313928851e97e0d85413f3f7eb77f C {'date': '56 12', 'user': 'test'}

do it again (it read the obsstore before adding new changeset)

  $ hg up '.^'

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

  $ mkcommit new_2_c

  created new head

  $ hg debugobsolete -d '1337 0' `getid new_c` `getid new_2_c`

  $ hg debugobsolete

  245bde4270cd1072a27757984f9cda8ba26f08ca cdbce2fbb16313928851e97e0d85413f3f7eb77f C {'date': '56 12', 'user': 'test'}

  cdbce2fbb16313928851e97e0d85413f3f7eb77f ca819180edb99ed25ceafb3e9584ac287e240b00 0 {'date': '1337 0', 'user': 'test'}

Register two markers with a missing node

  $ hg up '.^'

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

  $ mkcommit new_3_c

  created new head

  $ hg debugobsolete -d '1338 0' `getid new_2_c` 1337133713371337133713371337133713371337

  $ hg debugobsolete -d '1339 0' 1337133713371337133713371337133713371337 `getid new_3_c`

  $ hg debugobsolete

  245bde4270cd1072a27757984f9cda8ba26f08ca cdbce2fbb16313928851e97e0d85413f3f7eb77f C {'date': '56 12', 'user': 'test'}

  cdbce2fbb16313928851e97e0d85413f3f7eb77f ca819180edb99ed25ceafb3e9584ac287e240b00 0 {'date': '1337 0', 'user': 'test'}

  ca819180edb99ed25ceafb3e9584ac287e240b00 1337133713371337133713371337133713371337 0 {'date': '1338 0', 'user': 'test'}

  1337133713371337133713371337133713371337 5601fb93a350734d935195fee37f4054c529ff39 0 {'date': '1339 0', 'user': 'test'}

Refuse pathological nullid successors

  $ hg debugobsolete -d '9001 0' 1337133713371337133713371337133713371337 0000000000000000000000000000000000000000

  transaction abort!

  rollback completed

  abort: bad obsolescence marker detected: invalid successors nullid

  [255]

Check that graphlog detect that a changeset is obsolete:

  $ hg glog

  @  changeset:   5:5601fb93a350

  |  tag:         tip

  |  parent:      1:7c3bad9141dc

  |  user:        test

  |  date:        Thu Jan 01 00:00:00 1970 +0000

  |  summary:     add new_3_c

  |

  o  changeset:   1:7c3bad9141dc

  |  user:        test

  |  date:        Thu Jan 01 00:00:00 1970 +0000

  |  summary:     add b

  |

  o  changeset:   0:1f0dee641bb7

     user:        test

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

     summary:     add a

check that heads does not report them

  $ hg heads

  changeset:   5:5601fb93a350

  tag:         tip

  parent:      1:7c3bad9141dc

  user:        test

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

  summary:     add new_3_c

  $ hg heads --hidden

  changeset:   5:5601fb93a350

  tag:         tip

  parent:      1:7c3bad9141dc

  user:        test

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

  summary:     add new_3_c

  changeset:   4:ca819180edb9

  parent:      1:7c3bad9141dc

  user:        test

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

  summary:     add new_2_c

  changeset:   3:cdbce2fbb163

  parent:      1:7c3bad9141dc

  user:        test

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

  summary:     add new_c

  changeset:   2:245bde4270cd

  user:        test

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

  summary:     add original_c

check that summary does not report them

  $ hg init ../sink

  $ echo '[paths]' >> .hg/hgrc

  $ echo 'default=../sink' >> .hg/hgrc

  $ hg summary --remote

  parent: 5:5601fb93a350 tip

   add new_3_c

  branch: default

  commit: (clean)

  update: (current)

  remote: 3 outgoing

  $ hg summary --remote --hidden

  parent: 5:5601fb93a350 tip

   add new_3_c

  branch: default

  commit: (clean)

  update: 3 new changesets, 4 branch heads (merge)

  remote: 3 outgoing

Check that public changeset are not accounted as obsolete:

  $ hg --hidden phase --public 2

  $ hg --config 'extensions.graphlog=' glog

  @  changeset:   5:5601fb93a350

  |  tag:         tip

  |  parent:      1:7c3bad9141dc

  |  user:        test

  |  date:        Thu Jan 01 00:00:00 1970 +0000

  |  summary:     add new_3_c

  |

  | o  changeset:   2:245bde4270cd

  |/   user:        test

  |    date:        Thu Jan 01 00:00:00 1970 +0000

  |    summary:     add original_c

  |

  o  changeset:   1:7c3bad9141dc

  |  user:        test

  |  date:        Thu Jan 01 00:00:00 1970 +0000

  |  summary:     add b

  |

  o  changeset:   0:1f0dee641bb7

     user:        test

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

     summary:     add a

And that bumped changeset are detected

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

If we didn't filtered obsolete changesets out, 3 and 4 would show up too. Also

note that the bumped changeset (5:5601fb93a350) is not a direct successor of

the public changeset

  $ hg log --hidden -r 'bumped()'

  changeset:   5:5601fb93a350

  tag:         tip

  parent:      1:7c3bad9141dc

  user:        test

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

  summary:     add new_3_c

And that we can't push bumped changeset

  $ hg push ../tmpa -r 0 --force #(make repo related)

  pushing to ../tmpa

  searching for changes

  warning: repository is unrelated

  adding changesets

  adding manifests

  adding file changes

  added 1 changesets with 1 changes to 1 files (+1 heads)

  $ hg push ../tmpa

  pushing to ../tmpa

  searching for changes

  abort: push includes bumped changeset: 5601fb93a350!

  [255]

Fixing "bumped" situation

We need to create a clone of 5 and add a special marker with a flag

  $ hg up '5^'

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

  $ hg revert -ar 5

  adding new_3_c

  $ hg ci -m 'add n3w_3_c'

  created new head

  $ hg debugobsolete -d '1338 0' --flags 1 `getid new_3_c` `getid n3w_3_c`

  $ hg log -r 'bumped()'

  $ hg log -G

  @  changeset:   6:6f9641995072

  |  tag:         tip

  |  parent:      1:7c3bad9141dc

  |  user:        test

  |  date:        Thu Jan 01 00:00:00 1970 +0000

  |  summary:     add n3w_3_c

  |

  | o  changeset:   2:245bde4270cd

  |/   user:        test

  |    date:        Thu Jan 01 00:00:00 1970 +0000

  |    summary:     add original_c

  |

  o  changeset:   1:7c3bad9141dc

  |  user:        test

  |  date:        Thu Jan 01 00:00:00 1970 +0000

  |  summary:     add b

  |

  o  changeset:   0:1f0dee641bb7

     user:        test

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

     summary:     add a

  $ cd ..

Exchange Test

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

Destination repo does not have any data

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

Try to pull markers

(extinct changeset are excluded but marker are pushed)

  $ hg init tmpc

  $ cd tmpc

  $ hg pull ../tmpb

  pulling from ../tmpb

  requesting all changes

  adding changesets

  adding manifests

  adding file changes

  added 4 changesets with 4 changes to 4 files (+1 heads)

  (run 'hg heads' to see heads, 'hg merge' to merge)

  $ hg debugobsolete

  245bde4270cd1072a27757984f9cda8ba26f08ca cdbce2fbb16313928851e97e0d85413f3f7eb77f C {'date': '56 12', 'user': 'test'}

  cdbce2fbb16313928851e97e0d85413f3f7eb77f ca819180edb99ed25ceafb3e9584ac287e240b00 0 {'date': '1337 0', 'user': 'test'}

  ca819180edb99ed25ceafb3e9584ac287e240b00 1337133713371337133713371337133713371337 0 {'date': '1338 0', 'user': 'test'}

  1337133713371337133713371337133713371337 5601fb93a350734d935195fee37f4054c529ff39 0 {'date': '1339 0', 'user': 'test'}

  5601fb93a350734d935195fee37f4054c529ff39 6f96419950729f3671185b847352890f074f7557 1 {'date': '1338 0', 'user': 'test'}

Rollback//Transaction support

  $ hg debugobsolete -d '1340 0' aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb

  $ hg debugobsolete

  245bde4270cd1072a27757984f9cda8ba26f08ca cdbce2fbb16313928851e97e0d85413f3f7eb77f C {'date': '56 12', 'user': 'test'}

  cdbce2fbb16313928851e97e0d85413f3f7eb77f ca819180edb99ed25ceafb3e9584ac287e240b00 0 {'date': '1337 0', 'user': 'test'}

  ca819180edb99ed25ceafb3e9584ac287e240b00 1337133713371337133713371337133713371337 0 {'date': '1338 0', 'user': 'test'}

  1337133713371337133713371337133713371337 5601fb93a350734d935195fee37f4054c529ff39 0 {'date': '1339 0', 'user': 'test'}

  5601fb93a350734d935195fee37f4054c529ff39 6f96419950729f3671185b847352890f074f7557 1 {'date': '1338 0', 'user': 'test'}

  aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb 0 {'date': '1340 0', 'user': 'test'}

  $ hg rollback -n

  repository tip rolled back to revision 3 (undo debugobsolete)

  $ hg rollback

  repository tip rolled back to revision 3 (undo debugobsolete)

  $ hg debugobsolete

  245bde4270cd1072a27757984f9cda8ba26f08ca cdbce2fbb16313928851e97e0d85413f3f7eb77f C {'date': '56 12', 'user': 'test'}

  cdbce2fbb16313928851e97e0d85413f3f7eb77f ca819180edb99ed25ceafb3e9584ac287e240b00 0 {'date': '1337 0', 'user': 'test'}

  ca819180edb99ed25ceafb3e9584ac287e240b00 1337133713371337133713371337133713371337 0 {'date': '1338 0', 'user': 'test'}

  1337133713371337133713371337133713371337 5601fb93a350734d935195fee37f4054c529ff39 0 {'date': '1339 0', 'user': 'test'}

  5601fb93a350734d935195fee37f4054c529ff39 6f96419950729f3671185b847352890f074f7557 1 {'date': '1338 0', 'user': 'test'}

  $ cd ..

Try to pull markers

  $ hg init tmpd

  $ hg -R tmpb push tmpd

  pushing to tmpd

  searching for changes

  adding changesets

  adding manifests

  adding file changes

  added 4 changesets with 4 changes to 4 files (+1 heads)

  $ hg -R tmpd debugobsolete

  245bde4270cd1072a27757984f9cda8ba26f08ca cdbce2fbb16313928851e97e0d85413f3f7eb77f C {'date': '56 12', 'user': 'test'}

  cdbce2fbb16313928851e97e0d85413f3f7eb77f ca819180edb99ed25ceafb3e9584ac287e240b00 0 {'date': '1337 0', 'user': 'test'}

  ca819180edb99ed25ceafb3e9584ac287e240b00 1337133713371337133713371337133713371337 0 {'date': '1338 0', 'user': 'test'}

  1337133713371337133713371337133713371337 5601fb93a350734d935195fee37f4054c529ff39 0 {'date': '1339 0', 'user': 'test'}

  5601fb93a350734d935195fee37f4054c529ff39 6f96419950729f3671185b847352890f074f7557 1 {'date': '1338 0', 'user': 'test'}

Check obsolete keys are exchanged only if source has an obsolete store

  $ hg init empty

  $ hg --config extensions.debugkeys=debugkeys.py -R empty push tmpd

  pushing to tmpd

  no changes found

  listkeys phases

  listkeys bookmarks

  [1]

clone support

(markers are copied and extinct changesets are included to allow hardlinks)

  $ hg clone tmpb clone-dest

  updating to branch default

  3 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ hg -R clone-dest log -G --hidden

  @  changeset:   6:6f9641995072

  |  tag:         tip

  |  parent:      1:7c3bad9141dc