view tests/test-obsolete.t @ 31619:91ddb33deea5

rebase: move state serialization to use unfiltered repo

Now that rebasestate is serialized as part of the transaction, the repo state it
sees is the version at the end of the transaction, which may have hidden nodes.
Therefore, it's possible parts of the rebase commit set are no longer visible by
the time the transaction is closing, which causes a filtered revision error in
this code. I don't think state serialization should be blocked from accessing
commits it knows exist, especially if all it's trying to do is get the hex of
them, so let's use an unfiltered repo here.

Unfortunately, the only known repro is with the fbamend Facebook extension, so
I'm not sure how to repro it in core Mercurial for a test.

  $ cat >> $HGRCPATH << EOF
  > [phases]
  > # public changeset are not obsolete
  > publish=false
  > [ui]
  > logtemplate="{rev}:{node|short} ({phase}{if(troubles, ' {troubles}')}) [{tags} {bookmarks}] {desc|firstline}\n"
  > EOF
  $ mkcommit() {
  >    echo "$1" > "$1"
  >    hg add "$1"
  >    hg ci -m "add $1"
  > }
  $ getid() {
  >    hg log -T "{node}\n" --hidden -r "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: creating obsolete markers is not enabled on this repo
  [255]

Enabling it

  $ cat >> $HGRCPATH << EOF
  > [experimental]
  > evolution=createmarkers,exchange
  > EOF

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 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'babar'}

(test that mercurial is not confused)

  $ hg up null --quiet # having 0 as parent prevents it to be hidden
  $ hg tip
  -1:000000000000 (public) [tip ] 
  $ hg up --hidden tip --quiet

Killing a single changeset with itself should fail
(simple local safeguard)

  $ hg debugobsolete `getid kill_me` `getid kill_me`
  abort: bad obsmarker input: in-marker cycle with 97b7c2d76b1845ed3eb988cd612611e72406cef0
  [255]

  $ cd ..

Killing a single changeset with replacement
(and testing the format option)

  $ 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 --config format.obsstore-version=0 --flag 12 `getid original_c`  `getid new_c` -d '121 120'
  $ hg log -r 'hidden()' --template '{rev}:{node|short} {desc}\n' --hidden
  2:245bde4270cd add original_c
  $ hg debugrevlog -cd
  # rev p1rev p2rev start   end deltastart base   p1   p2 rawsize totalsize compression heads chainlen
      0    -1    -1     0    59          0    0    0    0      58        58           0     1        0
      1     0    -1    59   118         59   59    0    0      58       116           0     1        0
      2     1    -1   118   193        118  118   59    0      76       192           0     1        0
      3     1    -1   193   260        193  193   59    0      66       258           0     2        0
  $ hg debugobsolete
  245bde4270cd1072a27757984f9cda8ba26f08ca cdbce2fbb16313928851e97e0d85413f3f7eb77f C (Thu Jan 01 00:00:01 1970 -0002) {'user': 'test'}

(check for version number of the obsstore)

  $ dd bs=1 count=1 if=.hg/store/obsstore 2>/dev/null
  \x00 (no-eol) (esc)

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 (Thu Jan 01 00:00:01 1970 -0002) {'user': 'test'}
  cdbce2fbb16313928851e97e0d85413f3f7eb77f ca819180edb99ed25ceafb3e9584ac287e240b00 0 (Thu Jan 01 00:22:17 1970 +0000) {'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 (Thu Jan 01 00:00:01 1970 -0002) {'user': 'test'}
  cdbce2fbb16313928851e97e0d85413f3f7eb77f ca819180edb99ed25ceafb3e9584ac287e240b00 0 (Thu Jan 01 00:22:17 1970 +0000) {'user': 'test'}
  ca819180edb99ed25ceafb3e9584ac287e240b00 1337133713371337133713371337133713371337 0 (Thu Jan 01 00:22:18 1970 +0000) {'user': 'test'}
  1337133713371337133713371337133713371337 5601fb93a350734d935195fee37f4054c529ff39 0 (Thu Jan 01 00:22:19 1970 +0000) {'user': 'test'}

Test the --index option of debugobsolete command
  $ hg debugobsolete --index
  0 245bde4270cd1072a27757984f9cda8ba26f08ca cdbce2fbb16313928851e97e0d85413f3f7eb77f C (Thu Jan 01 00:00:01 1970 -0002) {'user': 'test'}
  1 cdbce2fbb16313928851e97e0d85413f3f7eb77f ca819180edb99ed25ceafb3e9584ac287e240b00 0 (Thu Jan 01 00:22:17 1970 +0000) {'user': 'test'}
  2 ca819180edb99ed25ceafb3e9584ac287e240b00 1337133713371337133713371337133713371337 0 (Thu Jan 01 00:22:18 1970 +0000) {'user': 'test'}
  3 1337133713371337133713371337133713371337 5601fb93a350734d935195fee37f4054c529ff39 0 (Thu Jan 01 00:22:19 1970 +0000) {'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 log -G
  @  5:5601fb93a350 (draft) [tip ] add new_3_c
  |
  o  1:7c3bad9141dc (draft) [ ] add b
  |
  o  0:1f0dee641bb7 (draft) [ ] add a
  

check that heads does not report them

  $ hg heads
  5:5601fb93a350 (draft) [tip ] add new_3_c
  $ hg heads --hidden
  5:5601fb93a350 (draft) [tip ] add new_3_c
  4:ca819180edb9 (draft) [ ] add new_2_c
  3:cdbce2fbb163 (draft) [ ] add new_c
  2:245bde4270cd (draft) [ ] 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)
  phases: 3 draft
  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)
  phases: 6 draft
  remote: 3 outgoing

check that various commands work well with filtering

  $ hg tip
  5:5601fb93a350 (draft) [tip ] add new_3_c
  $ hg log -r 6
  abort: unknown revision '6'!
  [255]
  $ hg log -r 4
  abort: hidden revision '4'!
  (use --hidden to access hidden revisions)
  [255]
  $ hg debugrevspec 'rev(6)'
  $ hg debugrevspec 'rev(4)'
  $ hg debugrevspec 'null'
  -1

Check that public changeset are not accounted as obsolete:

  $ hg --hidden phase --public 2
  $ hg log -G
  @  5:5601fb93a350 (draft bumped) [tip ] add new_3_c
  |
  | o  2:245bde4270cd (public) [ ] add original_c
  |/
  o  1:7c3bad9141dc (public) [ ] add b
  |
  o  0:1f0dee641bb7 (public) [ ] 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()'
  5:5601fb93a350 (draft bumped) [tip ] 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 summary
  parent: 5:5601fb93a350 tip (bumped)
   add new_3_c
  branch: default
  commit: (clean)
  update: 1 new changesets, 2 branch heads (merge)
  phases: 1 draft
  bumped: 1 changesets
  $ 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
  @  6:6f9641995072 (draft) [tip ] add n3w_3_c
  |
  | o  2:245bde4270cd (public) [ ] add original_c
  |/
  o  1:7c3bad9141dc (public) [ ] add b
  |
  o  0:1f0dee641bb7 (public) [ ] add a
  

  $ cd ..

Revision 0 is hidden
--------------------

  $ hg init rev0hidden
  $ cd rev0hidden

  $ mkcommit kill0
  $ hg up -q null
  $ hg debugobsolete `getid kill0`
  $ mkcommit a
  $ mkcommit b

Should pick the first visible revision as "repo" node

  $ hg archive ../archive-null
  $ cat ../archive-null/.hg_archival.txt
  repo: 1f0dee641bb7258c56bd60e93edfa2405381c41e
  node: 7c3bad9141dcb46ff89abf5f61856facd56e476c
  branch: default
  latesttag: null
  latesttagdistance: 2
  changessincelatesttag: 2


  $ cd ..

Exchange Test
============================

Destination repo does not have any data
---------------------------------------

Simple incoming test

  $ hg init tmpc
  $ cd tmpc
  $ hg incoming ../tmpb
  comparing with ../tmpb
  0:1f0dee641bb7 (public) [ ] add a
  1:7c3bad9141dc (public) [ ] add b
  2:245bde4270cd (public) [ ] add original_c
  6:6f9641995072 (draft) [tip ] add n3w_3_c

Try to pull markers
(extinct changeset are excluded but marker are pushed)

  $ 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)
  5 new obsolescence markers
  (run 'hg heads' to see heads, 'hg merge' to merge)
  $ hg debugobsolete
  1337133713371337133713371337133713371337 5601fb93a350734d935195fee37f4054c529ff39 0 (Thu Jan 01 00:22:19 1970 +0000) {'user': 'test'}
  245bde4270cd1072a27757984f9cda8ba26f08ca cdbce2fbb16313928851e97e0d85413f3f7eb77f C (Thu Jan 01 00:00:01 1970 -0002) {'user': 'test'}
  5601fb93a350734d935195fee37f4054c529ff39 6f96419950729f3671185b847352890f074f7557 1 (Thu Jan 01 00:22:18 1970 +0000) {'user': 'test'}
  ca819180edb99ed25ceafb3e9584ac287e240b00 1337133713371337133713371337133713371337 0 (Thu Jan 01 00:22:18 1970 +0000) {'user': 'test'}
  cdbce2fbb16313928851e97e0d85413f3f7eb77f ca819180edb99ed25ceafb3e9584ac287e240b00 0 (Thu Jan 01 00:22:17 1970 +0000) {'user': 'test'}

Rollback//Transaction support

  $ hg debugobsolete -d '1340 0' aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
  $ hg debugobsolete
  1337133713371337133713371337133713371337 5601fb93a350734d935195fee37f4054c529ff39 0 (Thu Jan 01 00:22:19 1970 +0000) {'user': 'test'}
  245bde4270cd1072a27757984f9cda8ba26f08ca cdbce2fbb16313928851e97e0d85413f3f7eb77f C (Thu Jan 01 00:00:01 1970 -0002) {'user': 'test'}
  5601fb93a350734d935195fee37f4054c529ff39 6f96419950729f3671185b847352890f074f7557 1 (Thu Jan 01 00:22:18 1970 +0000) {'user': 'test'}
  ca819180edb99ed25ceafb3e9584ac287e240b00 1337133713371337133713371337133713371337 0 (Thu Jan 01 00:22:18 1970 +0000) {'user': 'test'}
  cdbce2fbb16313928851e97e0d85413f3f7eb77f ca819180edb99ed25ceafb3e9584ac287e240b00 0 (Thu Jan 01 00:22:17 1970 +0000) {'user': 'test'}
  aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb 0 (Thu Jan 01 00:22:20 1970 +0000) {'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
  1337133713371337133713371337133713371337 5601fb93a350734d935195fee37f4054c529ff39 0 (Thu Jan 01 00:22:19 1970 +0000) {'user': 'test'}
  245bde4270cd1072a27757984f9cda8ba26f08ca cdbce2fbb16313928851e97e0d85413f3f7eb77f C (Thu Jan 01 00:00:01 1970 -0002) {'user': 'test'}
  5601fb93a350734d935195fee37f4054c529ff39 6f96419950729f3671185b847352890f074f7557 1 (Thu Jan 01 00:22:18 1970 +0000) {'user': 'test'}
  ca819180edb99ed25ceafb3e9584ac287e240b00 1337133713371337133713371337133713371337 0 (Thu Jan 01 00:22:18 1970 +0000) {'user': 'test'}
  cdbce2fbb16313928851e97e0d85413f3f7eb77f ca819180edb99ed25ceafb3e9584ac287e240b00 0 (Thu Jan 01 00:22:17 1970 +0000) {'user': 'test'}

  $ cd ..

Try to push 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)
  5 new obsolescence markers
  $ hg -R tmpd debugobsolete | sort
  1337133713371337133713371337133713371337 5601fb93a350734d935195fee37f4054c529ff39 0 (Thu Jan 01 00:22:19 1970 +0000) {'user': 'test'}
  245bde4270cd1072a27757984f9cda8ba26f08ca cdbce2fbb16313928851e97e0d85413f3f7eb77f C (Thu Jan 01 00:00:01 1970 -0002) {'user': 'test'}
  5601fb93a350734d935195fee37f4054c529ff39 6f96419950729f3671185b847352890f074f7557 1 (Thu Jan 01 00:22:18 1970 +0000) {'user': 'test'}
  ca819180edb99ed25ceafb3e9584ac287e240b00 1337133713371337133713371337133713371337 0 (Thu Jan 01 00:22:18 1970 +0000) {'user': 'test'}
  cdbce2fbb16313928851e97e0d85413f3f7eb77f ca819180edb99ed25ceafb3e9584ac287e240b00 0 (Thu Jan 01 00:22:17 1970 +0000) {'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
  listkeys phases
  listkeys bookmarks
  no changes found
  listkeys phases
  [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
  @  6:6f9641995072 (draft) [tip ] add n3w_3_c
  |
  | x  5:5601fb93a350 (draft) [ ] add new_3_c
  |/
  | x  4:ca819180edb9 (draft) [ ] add new_2_c
  |/
  | x  3:cdbce2fbb163 (draft) [ ] add new_c
  |/
  | o  2:245bde4270cd (public) [ ] add original_c
  |/
  o  1:7c3bad9141dc (public) [ ] add b
  |
  o  0:1f0dee641bb7 (public) [ ] add a
  
  $ hg -R clone-dest debugobsolete
  245bde4270cd1072a27757984f9cda8ba26f08ca cdbce2fbb16313928851e97e0d85413f3f7eb77f C (Thu Jan 01 00:00:01 1970 -0002) {'user': 'test'}
  cdbce2fbb16313928851e97e0d85413f3f7eb77f ca819180edb99ed25ceafb3e9584ac287e240b00 0 (Thu Jan 01 00:22:17 1970 +0000) {'user': 'test'}
  ca819180edb99ed25ceafb3e9584ac287e240b00 1337133713371337133713371337133713371337 0 (Thu Jan 01 00:22:18 1970 +0000) {'user': 'test'}
  1337133713371337133713371337133713371337 5601fb93a350734d935195fee37f4054c529ff39 0 (Thu Jan 01 00:22:19 1970 +0000) {'user': 'test'}
  5601fb93a350734d935195fee37f4054c529ff39 6f96419950729f3671185b847352890f074f7557 1 (Thu Jan 01 00:22:18 1970 +0000) {'user': 'test'}


Destination repo have existing data
---------------------------------------

On pull

  $ hg init tmpe
  $ cd tmpe
  $ hg debugobsolete -d '1339 0' 1339133913391339133913391339133913391339 ca819180edb99ed25ceafb3e9584ac287e240b00
  $ 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)
  5 new obsolescence markers
  (run 'hg heads' to see heads, 'hg merge' to merge)
  $ hg debugobsolete
  1339133913391339133913391339133913391339 ca819180edb99ed25ceafb3e9584ac287e240b00 0 (Thu Jan 01 00:22:19 1970 +0000) {'user': 'test'}
  1337133713371337133713371337133713371337 5601fb93a350734d935195fee37f4054c529ff39 0 (Thu Jan 01 00:22:19 1970 +0000) {'user': 'test'}
  245bde4270cd1072a27757984f9cda8ba26f08ca cdbce2fbb16313928851e97e0d85413f3f7eb77f C (Thu Jan 01 00:00:01 1970 -0002) {'user': 'test'}
  5601fb93a350734d935195fee37f4054c529ff39 6f96419950729f3671185b847352890f074f7557 1 (Thu Jan 01 00:22:18 1970 +0000) {'user': 'test'}
  ca819180edb99ed25ceafb3e9584ac287e240b00 1337133713371337133713371337133713371337 0 (Thu Jan 01 00:22:18 1970 +0000) {'user': 'test'}
  cdbce2fbb16313928851e97e0d85413f3f7eb77f ca819180edb99ed25ceafb3e9584ac287e240b00 0 (Thu Jan 01 00:22:17 1970 +0000) {'user': 'test'}


On push

  $ hg push ../tmpc
  pushing to ../tmpc
  searching for changes
  no changes found
  1 new obsolescence markers
  [1]
  $ hg -R ../tmpc debugobsolete
  1337133713371337133713371337133713371337 5601fb93a350734d935195fee37f4054c529ff39 0 (Thu Jan 01 00:22:19 1970 +0000) {'user': 'test'}
  245bde4270cd1072a27757984f9cda8ba26f08ca cdbce2fbb16313928851e97e0d85413f3f7eb77f C (Thu Jan 01 00:00:01 1970 -0002) {'user': 'test'}
  5601fb93a350734d935195fee37f4054c529ff39 6f96419950729f3671185b847352890f074f7557 1 (Thu Jan 01 00:22:18 1970 +0000) {'user': 'test'}
  ca819180edb99ed25ceafb3e9584ac287e240b00 1337133713371337133713371337133713371337 0 (Thu Jan 01 00:22:18 1970 +0000) {'user': 'test'}
  cdbce2fbb16313928851e97e0d85413f3f7eb77f ca819180edb99ed25ceafb3e9584ac287e240b00 0 (Thu Jan 01 00:22:17 1970 +0000) {'user': 'test'}
  1339133913391339133913391339133913391339 ca819180edb99ed25ceafb3e9584ac287e240b00 0 (Thu Jan 01 00:22:19 1970 +0000) {'user': 'test'}

detect outgoing obsolete and unstable
---------------------------------------


  $ hg log -G
  o  3:6f9641995072 (draft) [tip ] add n3w_3_c
  |
  | o  2:245bde4270cd (public) [ ] add original_c
  |/
  o  1:7c3bad9141dc (public) [ ] add b
  |
  o  0:1f0dee641bb7 (public) [ ] add a
  
  $ hg up 'desc("n3w_3_c")'
  3 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ mkcommit original_d
  $ mkcommit original_e
  $ hg debugobsolete --record-parents `getid original_d` -d '0 0'
  $ hg debugobsolete | grep `getid original_d`
  94b33453f93bdb8d457ef9b770851a618bf413e1 0 {6f96419950729f3671185b847352890f074f7557} (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
  $ hg log -r 'obsolete()'
  4:94b33453f93b (draft) [ ] add original_d
  $ hg summary
  parent: 5:cda648ca50f5 tip (unstable)
   add original_e
  branch: default
  commit: (clean)
  update: 1 new changesets, 2 branch heads (merge)
  phases: 3 draft
  unstable: 1 changesets
  $ hg log -G -r '::unstable()'
  @  5:cda648ca50f5 (draft unstable) [tip ] add original_e
  |
  x  4:94b33453f93b (draft) [ ] add original_d
  |
  o  3:6f9641995072 (draft) [ ] add n3w_3_c
  |
  o  1:7c3bad9141dc (public) [ ] add b
  |
  o  0:1f0dee641bb7 (public) [ ] add a
  

refuse to push obsolete changeset

  $ hg push ../tmpc/ -r 'desc("original_d")'
  pushing to ../tmpc/
  searching for changes
  abort: push includes obsolete changeset: 94b33453f93b!
  [255]

refuse to push unstable changeset

  $ hg push ../tmpc/
  pushing to ../tmpc/
  searching for changes
  abort: push includes unstable changeset: cda648ca50f5!
  [255]

Test that extinct changeset are properly detected

  $ hg log -r 'extinct()'

Don't try to push extinct changeset

  $ hg init ../tmpf
  $ hg out  ../tmpf
  comparing with ../tmpf
  searching for changes
  0:1f0dee641bb7 (public) [ ] add a
  1:7c3bad9141dc (public) [ ] add b
  2:245bde4270cd (public) [ ] add original_c
  3:6f9641995072 (draft) [ ] add n3w_3_c
  4:94b33453f93b (draft) [ ] add original_d
  5:cda648ca50f5 (draft unstable) [tip ] add original_e
  $ hg push ../tmpf -f # -f because be push unstable too
  pushing to ../tmpf
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 6 changesets with 6 changes to 6 files (+1 heads)
  7 new obsolescence markers

no warning displayed

  $ hg push ../tmpf
  pushing to ../tmpf
  searching for changes
  no changes found
  [1]

Do not warn about new head when the new head is a successors of a remote one

  $ hg log -G
  @  5:cda648ca50f5 (draft unstable) [tip ] add original_e
  |
  x  4:94b33453f93b (draft) [ ] add original_d
  |
  o  3:6f9641995072 (draft) [ ] add n3w_3_c
  |
  | o  2:245bde4270cd (public) [ ] add original_c
  |/
  o  1:7c3bad9141dc (public) [ ] add b
  |
  o  0:1f0dee641bb7 (public) [ ] add a
  
  $ hg up -q 'desc(n3w_3_c)'
  $ mkcommit obsolete_e
  created new head
  $ hg debugobsolete `getid 'original_e'` `getid 'obsolete_e'`
  $ hg outgoing ../tmpf # parasite hg outgoing testin
  comparing with ../tmpf
  searching for changes
  6:3de5eca88c00 (draft) [tip ] add obsolete_e
  $ hg push ../tmpf
  pushing to ../tmpf
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files (+1 heads)
  1 new obsolescence markers

test relevance computation
---------------------------------------

Checking simple case of "marker relevance".


Reminder of the repo situation

  $ hg log --hidden --graph
  @  6:3de5eca88c00 (draft) [tip ] add obsolete_e
  |
  | x  5:cda648ca50f5 (draft) [ ] add original_e
  | |
  | x  4:94b33453f93b (draft) [ ] add original_d
  |/
  o  3:6f9641995072 (draft) [ ] add n3w_3_c
  |
  | o  2:245bde4270cd (public) [ ] add original_c
  |/
  o  1:7c3bad9141dc (public) [ ] add b
  |
  o  0:1f0dee641bb7 (public) [ ] add a
  

List of all markers

  $ hg debugobsolete
  1339133913391339133913391339133913391339 ca819180edb99ed25ceafb3e9584ac287e240b00 0 (Thu Jan 01 00:22:19 1970 +0000) {'user': 'test'}
  1337133713371337133713371337133713371337 5601fb93a350734d935195fee37f4054c529ff39 0 (Thu Jan 01 00:22:19 1970 +0000) {'user': 'test'}
  245bde4270cd1072a27757984f9cda8ba26f08ca cdbce2fbb16313928851e97e0d85413f3f7eb77f C (Thu Jan 01 00:00:01 1970 -0002) {'user': 'test'}
  5601fb93a350734d935195fee37f4054c529ff39 6f96419950729f3671185b847352890f074f7557 1 (Thu Jan 01 00:22:18 1970 +0000) {'user': 'test'}
  ca819180edb99ed25ceafb3e9584ac287e240b00 1337133713371337133713371337133713371337 0 (Thu Jan 01 00:22:18 1970 +0000) {'user': 'test'}
  cdbce2fbb16313928851e97e0d85413f3f7eb77f ca819180edb99ed25ceafb3e9584ac287e240b00 0 (Thu Jan 01 00:22:17 1970 +0000) {'user': 'test'}
  94b33453f93bdb8d457ef9b770851a618bf413e1 0 {6f96419950729f3671185b847352890f074f7557} (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
  cda648ca50f50482b7055c0b0c4c117bba6733d9 3de5eca88c00aa039da7399a220f4a5221faa585 0 (*) {'user': 'test'} (glob)

List of changesets with no chain

  $ hg debugobsolete --hidden --rev ::2

List of changesets that are included on marker chain

  $ hg debugobsolete --hidden --rev 6
  cda648ca50f50482b7055c0b0c4c117bba6733d9 3de5eca88c00aa039da7399a220f4a5221faa585 0 (*) {'user': 'test'} (glob)

List of changesets with a longer chain, (including a pruned children)

  $ hg debugobsolete --hidden --rev 3
  1337133713371337133713371337133713371337 5601fb93a350734d935195fee37f4054c529ff39 0 (Thu Jan 01 00:22:19 1970 +0000) {'user': 'test'}
  1339133913391339133913391339133913391339 ca819180edb99ed25ceafb3e9584ac287e240b00 0 (Thu Jan 01 00:22:19 1970 +0000) {'user': 'test'}
  245bde4270cd1072a27757984f9cda8ba26f08ca cdbce2fbb16313928851e97e0d85413f3f7eb77f C (Thu Jan 01 00:00:01 1970 -0002) {'user': 'test'}
  5601fb93a350734d935195fee37f4054c529ff39 6f96419950729f3671185b847352890f074f7557 1 (Thu Jan 01 00:22:18 1970 +0000) {'user': 'test'}
  94b33453f93bdb8d457ef9b770851a618bf413e1 0 {6f96419950729f3671185b847352890f074f7557} (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
  ca819180edb99ed25ceafb3e9584ac287e240b00 1337133713371337133713371337133713371337 0 (Thu Jan 01 00:22:18 1970 +0000) {'user': 'test'}
  cdbce2fbb16313928851e97e0d85413f3f7eb77f ca819180edb99ed25ceafb3e9584ac287e240b00 0 (Thu Jan 01 00:22:17 1970 +0000) {'user': 'test'}

List of both

  $ hg debugobsolete --hidden --rev 3::6
  1337133713371337133713371337133713371337 5601fb93a350734d935195fee37f4054c529ff39 0 (Thu Jan 01 00:22:19 1970 +0000) {'user': 'test'}
  1339133913391339133913391339133913391339 ca819180edb99ed25ceafb3e9584ac287e240b00 0 (Thu Jan 01 00:22:19 1970 +0000) {'user': 'test'}
  245bde4270cd1072a27757984f9cda8ba26f08ca cdbce2fbb16313928851e97e0d85413f3f7eb77f C (Thu Jan 01 00:00:01 1970 -0002) {'user': 'test'}
  5601fb93a350734d935195fee37f4054c529ff39 6f96419950729f3671185b847352890f074f7557 1 (Thu Jan 01 00:22:18 1970 +0000) {'user': 'test'}
  94b33453f93bdb8d457ef9b770851a618bf413e1 0 {6f96419950729f3671185b847352890f074f7557} (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
  ca819180edb99ed25ceafb3e9584ac287e240b00 1337133713371337133713371337133713371337 0 (Thu Jan 01 00:22:18 1970 +0000) {'user': 'test'}
  cda648ca50f50482b7055c0b0c4c117bba6733d9 3de5eca88c00aa039da7399a220f4a5221faa585 0 (*) {'user': 'test'} (glob)
  cdbce2fbb16313928851e97e0d85413f3f7eb77f ca819180edb99ed25ceafb3e9584ac287e240b00 0 (Thu Jan 01 00:22:17 1970 +0000) {'user': 'test'}

List of all markers in JSON

  $ hg debugobsolete -Tjson
  [
   {
    "date": [1339.0, 0],
    "flag": 0,
    "metadata": {"user": "test"},
    "precnode": "1339133913391339133913391339133913391339",
    "succnodes": ["ca819180edb99ed25ceafb3e9584ac287e240b00"]
   },
   {
    "date": [1339.0, 0],
    "flag": 0,
    "metadata": {"user": "test"},
    "precnode": "1337133713371337133713371337133713371337",
    "succnodes": ["5601fb93a350734d935195fee37f4054c529ff39"]
   },
   {
    "date": [121.0, 120],
    "flag": 12,
    "metadata": {"user": "test"},
    "precnode": "245bde4270cd1072a27757984f9cda8ba26f08ca",
    "succnodes": ["cdbce2fbb16313928851e97e0d85413f3f7eb77f"]
   },
   {
    "date": [1338.0, 0],
    "flag": 1,
    "metadata": {"user": "test"},
    "precnode": "5601fb93a350734d935195fee37f4054c529ff39",
    "succnodes": ["6f96419950729f3671185b847352890f074f7557"]
   },
   {
    "date": [1338.0, 0],
    "flag": 0,
    "metadata": {"user": "test"},
    "precnode": "ca819180edb99ed25ceafb3e9584ac287e240b00",
    "succnodes": ["1337133713371337133713371337133713371337"]
   },
   {
    "date": [1337.0, 0],
    "flag": 0,
    "metadata": {"user": "test"},
    "precnode": "cdbce2fbb16313928851e97e0d85413f3f7eb77f",
    "succnodes": ["ca819180edb99ed25ceafb3e9584ac287e240b00"]
   },
   {
    "date": [0.0, 0],
    "flag": 0,
    "metadata": {"user": "test"},
    "parentnodes": ["6f96419950729f3671185b847352890f074f7557"],
    "precnode": "94b33453f93bdb8d457ef9b770851a618bf413e1",
    "succnodes": []
   },
   {
    "date": *, (glob)
    "flag": 0,
    "metadata": {"user": "test"},
    "precnode": "cda648ca50f50482b7055c0b0c4c117bba6733d9",
    "succnodes": ["3de5eca88c00aa039da7399a220f4a5221faa585"]
   }
  ]

Template keywords

  $ hg debugobsolete -r6 -T '{succnodes % "{node|short}"} {date|shortdate}\n'
  3de5eca88c00 ????-??-?? (glob)
  $ hg debugobsolete -r6 -T '{join(metadata % "{key}={value}", " ")}\n'
  user=test
  $ hg debugobsolete -r6 -T '{metadata}\n'
  'user': 'test'
  $ hg debugobsolete -r6 -T '{flag} {get(metadata, "user")}\n'
  0 test

Test the debug output for exchange
----------------------------------

  $ hg pull ../tmpb --config 'experimental.obsmarkers-exchange-debug=True' # bundle2
  pulling from ../tmpb
  searching for changes
  no changes found
  obsmarker-exchange: 346 bytes received

check hgweb does not explode
====================================

  $ hg unbundle $TESTDIR/bundles/hgweb+obs.hg
  adding changesets
  adding manifests
  adding file changes
  added 62 changesets with 63 changes to 9 files (+60 heads)
  (run 'hg heads .' to see heads, 'hg merge' to merge)
  $ for node in `hg log -r 'desc(babar_)' --template '{node}\n'`;
  > do
  >    hg debugobsolete $node
  > done
  $ hg up tip
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved

#if serve

  $ hg serve -n test -p $HGPORT -d --pid-file=hg.pid -A access.log -E errors.log
  $ cat hg.pid >> $DAEMON_PIDS

check changelog view

  $ get-with-headers.py --headeronly localhost:$HGPORT 'shortlog/'
  200 Script output follows

check graph view

  $ get-with-headers.py --headeronly localhost:$HGPORT 'graph'
  200 Script output follows

check filelog view

  $ get-with-headers.py --headeronly localhost:$HGPORT 'log/'`hg log -r . -T "{node}"`/'babar'
  200 Script output follows

  $ get-with-headers.py --headeronly localhost:$HGPORT 'rev/68'
  200 Script output follows
  $ get-with-headers.py --headeronly localhost:$HGPORT 'rev/67'
  404 Not Found
  [1]

check that web.view config option:

  $ killdaemons.py hg.pid
  $ cat >> .hg/hgrc << EOF
  > [web]
  > view=all
  > EOF
  $ wait
  $ hg serve -n test -p $HGPORT -d --pid-file=hg.pid -A access.log -E errors.log
  $ get-with-headers.py --headeronly localhost:$HGPORT 'rev/67'
  200 Script output follows
  $ killdaemons.py hg.pid

Checking _enable=False warning if obsolete marker exists

  $ echo '[experimental]' >> $HGRCPATH
  $ echo "evolution=" >> $HGRCPATH
  $ hg log -r tip
  obsolete feature not enabled but 68 markers found!
  68:c15e9edfca13 (draft) [tip ] add celestine

reenable for later test

  $ echo '[experimental]' >> $HGRCPATH
  $ echo "evolution=createmarkers,exchange" >> $HGRCPATH

  $ rm hg.pid access.log errors.log
#endif

Several troubles on the same changeset (create an unstable and bumped changeset)

  $ hg debugobsolete `getid obsolete_e`
  $ hg debugobsolete `getid original_c` `getid babar`
  $ hg log --config ui.logtemplate= -r 'bumped() and unstable()'
  changeset:   7:50c51b361e60
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  trouble:     unstable, bumped
  summary:     add babar
  

test the "troubles" templatekw

  $ hg log -r 'bumped() and unstable()'
  7:50c51b361e60 (draft unstable bumped) [ ] add babar

test the default cmdline template

  $ hg log -T default -r 'bumped()'
  changeset:   7:50c51b361e60
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  trouble:     unstable, bumped
  summary:     add babar
  

test summary output

  $ hg up -r 'bumped() and unstable()'
  1 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ hg summary
  parent: 7:50c51b361e60  (unstable, bumped)
   add babar
  branch: default
  commit: (clean)
  update: 2 new changesets (update)
  phases: 4 draft
  unstable: 2 changesets
  bumped: 1 changesets

Test incoming/outcoming with changesets obsoleted remotely, known locally
===============================================================================

This test issue 3805

  $ hg init repo-issue3805
  $ cd repo-issue3805
  $ echo "base" > base
  $ hg ci -Am "base"
  adding base
  $ echo "foo" > foo
  $ hg ci -Am "A"
  adding foo
  $ hg clone . ../other-issue3805
  updating to branch default
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ echo "bar" >> foo
  $ hg ci --amend
  $ cd ../other-issue3805
  $ hg log -G
  @  1:29f0c6921ddd (draft) [tip ] A
  |
  o  0:d20a80d4def3 (draft) [ ] base
  
  $ hg log -G -R ../repo-issue3805
  @  3:323a9c3ddd91 (draft) [tip ] A
  |
  o  0:d20a80d4def3 (draft) [ ] base
  
  $ hg incoming
  comparing with $TESTTMP/tmpe/repo-issue3805 (glob)
  searching for changes
  3:323a9c3ddd91 (draft) [tip ] A
  $ hg incoming --bundle ../issue3805.hg
  comparing with $TESTTMP/tmpe/repo-issue3805 (glob)
  searching for changes
  3:323a9c3ddd91 (draft) [tip ] A
  $ hg outgoing
  comparing with $TESTTMP/tmpe/repo-issue3805 (glob)
  searching for changes
  1:29f0c6921ddd (draft) [tip ] A

#if serve

  $ hg serve -R ../repo-issue3805 -n test -p $HGPORT -d --pid-file=hg.pid -A access.log -E errors.log
  $ cat hg.pid >> $DAEMON_PIDS

  $ hg incoming http://localhost:$HGPORT
  comparing with http://localhost:$HGPORT/
  searching for changes
  2:323a9c3ddd91 (draft) [tip ] A
  $ hg outgoing http://localhost:$HGPORT
  comparing with http://localhost:$HGPORT/
  searching for changes
  1:29f0c6921ddd (draft) [tip ] A

  $ killdaemons.py

#endif

This test issue 3814

(nothing to push but locally hidden changeset)

  $ cd ..
  $ hg init repo-issue3814
  $ cd repo-issue3805
  $ hg push -r 323a9c3ddd91 ../repo-issue3814
  pushing to ../repo-issue3814
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 2 changesets with 2 changes to 2 files
  2 new obsolescence markers
  $ hg out ../repo-issue3814
  comparing with ../repo-issue3814
  searching for changes
  no changes found
  [1]

Test that a local tag blocks a changeset from being hidden

  $ hg tag -l visible -r 1 --hidden
  $ hg log -G
  @  3:323a9c3ddd91 (draft) [tip ] A
  |
  | x  1:29f0c6921ddd (draft) [visible ] A
  |/
  o  0:d20a80d4def3 (draft) [ ] base
  
Test that removing a local tag does not cause some commands to fail

  $ hg tag -l -r tip tiptag
  $ hg tags
  tiptag                             3:323a9c3ddd91
  tip                                3:323a9c3ddd91
  visible                            1:29f0c6921ddd
  $ hg --config extensions.strip= strip -r tip --no-backup
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ hg tags
  visible                            1:29f0c6921ddd
  tip                                1:29f0c6921ddd

Test bundle overlay onto hidden revision

  $ cd ..
  $ hg init repo-bundleoverlay
  $ cd repo-bundleoverlay
  $ echo "A" > foo
  $ hg ci -Am "A"
  adding foo
  $ echo "B" >> foo
  $ hg ci -m "B"
  $ hg up 0
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ echo "C" >> foo
  $ hg ci -m "C"
  created new head
  $ hg log -G
  @  2:c186d7714947 (draft) [tip ] C
  |
  | o  1:44526ebb0f98 (draft) [ ] B
  |/
  o  0:4b34ecfb0d56 (draft) [ ] A
  

  $ hg clone -r1 . ../other-bundleoverlay
  adding changesets
  adding manifests
  adding file changes
  added 2 changesets with 2 changes to 1 files
  updating to branch default
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ cd ../other-bundleoverlay
  $ echo "B+" >> foo
  $ hg ci --amend -m "B+"
  $ hg log -G --hidden
  @  3:b7d587542d40 (draft) [tip ] B+
  |
  | x  2:eb95e9297e18 (draft) [ ] temporary amend commit for 44526ebb0f98
  | |
  | x  1:44526ebb0f98 (draft) [ ] B
  |/
  o  0:4b34ecfb0d56 (draft) [ ] A
  

  $ hg incoming ../repo-bundleoverlay --bundle ../bundleoverlay.hg
  comparing with ../repo-bundleoverlay
  searching for changes
  1:44526ebb0f98 (draft) [ ] B
  2:c186d7714947 (draft) [tip ] C
  $ hg log -G -R ../bundleoverlay.hg
  o  4:c186d7714947 (draft) [tip ] C
  |
  | @  3:b7d587542d40 (draft) [ ] B+
  |/
  o  0:4b34ecfb0d56 (draft) [ ] A
  

#if serve

Test issue 4506

  $ cd ..
  $ hg init repo-issue4506
  $ cd repo-issue4506
  $ echo "0" > foo
  $ hg add foo
  $ hg ci -m "content-0"

  $ hg up null
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ echo "1" > bar
  $ hg add bar
  $ hg ci -m "content-1"
  created new head
  $ hg up 0
  1 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ hg graft 1
  grafting 1:1c9eddb02162 "content-1" (tip)

  $ hg debugobsolete `hg log -r1 -T'{node}'` `hg log -r2 -T'{node}'`

  $ hg serve -n test -p $HGPORT -d --pid-file=hg.pid -A access.log -E errors.log
  $ cat hg.pid >> $DAEMON_PIDS

  $ get-with-headers.py --headeronly localhost:$HGPORT 'rev/1'
  404 Not Found
  [1]
  $ get-with-headers.py --headeronly localhost:$HGPORT 'file/tip/bar'
  200 Script output follows
  $ get-with-headers.py --headeronly localhost:$HGPORT 'annotate/tip/bar'
  200 Script output follows

  $ killdaemons.py

#endif

Test heads computation on pending index changes with obsolescence markers
  $ cd ..
  $ cat >$TESTTMP/test_extension.py  << EOF
  > from mercurial import cmdutil
  > from mercurial.i18n import _
  > 
  > cmdtable = {}
  > command = cmdutil.command(cmdtable)
  > @command("amendtransient",[], _('hg amendtransient [rev]'))
  > def amend(ui, repo, *pats, **opts):
  >   def commitfunc(ui, repo, message, match, opts):
  >     return repo.commit(message, repo['.'].user(), repo['.'].date(), match)
  >   opts['message'] = 'Test'
  >   opts['logfile'] = None
  >   cmdutil.amend(ui, repo, commitfunc, repo['.'], {}, pats, opts)
  >   ui.write('%s\n' % repo.changelog.headrevs())
  > EOF
  $ cat >> $HGRCPATH << EOF
  > [extensions]
  > testextension=$TESTTMP/test_extension.py
  > EOF
  $ hg init repo-issue-nativerevs-pending-changes
  $ cd repo-issue-nativerevs-pending-changes
  $ mkcommit a
  $ mkcommit b
  $ hg up ".^"
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ echo aa > a
  $ hg amendtransient
  [1, 3]

Check that corrupted hidden cache does not crash

  $ printf "" > .hg/cache/hidden
  $ hg log -r . -T '{node}' --debug
  corrupted hidden cache
  8fd96dfc63e51ed5a8af1bec18eb4b19dbf83812 (no-eol)
  $ hg log -r . -T '{node}' --debug
  8fd96dfc63e51ed5a8af1bec18eb4b19dbf83812 (no-eol)

#if unix-permissions
Check that wrong hidden cache permission does not crash

  $ chmod 000 .hg/cache/hidden
  $ hg log -r . -T '{node}' --debug
  cannot read hidden cache
  error writing hidden changesets cache
  8fd96dfc63e51ed5a8af1bec18eb4b19dbf83812 (no-eol)
#endif

Test cache consistency for the visible filter
1) We want to make sure that the cached filtered revs are invalidated when
bookmarks change
  $ cd ..
  $ cat >$TESTTMP/test_extension.py  << EOF
  > import weakref
  > from mercurial import cmdutil, extensions, bookmarks, repoview
  > def _bookmarkchanged(orig, bkmstoreinst, *args, **kwargs):
  >  reporef = weakref.ref(bkmstoreinst._repo)
  >  def trhook(tr):
  >   repo = reporef()
  >   hidden1 = repoview.computehidden(repo)
  >   hidden = repoview.filterrevs(repo, 'visible')
  >   if sorted(hidden1) != sorted(hidden):
  >     print "cache inconsistency"
  >  bkmstoreinst._repo.currenttransaction().addpostclose('test_extension', trhook)
  >  orig(bkmstoreinst, *args, **kwargs)
  > def extsetup(ui):
  >   extensions.wrapfunction(bookmarks.bmstore, 'recordchange',
  >                           _bookmarkchanged)
  > EOF

  $ hg init repo-cache-inconsistency
  $ cd repo-issue-nativerevs-pending-changes
  $ mkcommit a
  a already tracked!
  $ mkcommit b
  $ hg id
  13bedc178fce tip
  $ echo "hello" > b
  $ hg commit --amend -m "message"
  $ hg book bookb -r 13bedc178fce --hidden
  $ hg log -r 13bedc178fce
  5:13bedc178fce (draft) [ bookb] add b
  $ hg book -d bookb
  $ hg log -r 13bedc178fce
  abort: hidden revision '13bedc178fce'!
  (use --hidden to access hidden revisions)
  [255]

Empty out the test extension, as it isn't compatible with later parts
of the test.
  $ echo > $TESTTMP/test_extension.py

Test ability to pull changeset with locally applying obsolescence markers
(issue4945)

  $ cd ..
  $ hg init issue4845
  $ cd issue4845

  $ echo foo > f0
  $ hg add f0
  $ hg ci -m '0'
  $ echo foo > f1
  $ hg add f1
  $ hg ci -m '1'
  $ echo foo > f2
  $ hg add f2
  $ hg ci -m '2'

  $ echo bar > f2
  $ hg commit --amend --config experimetnal.evolution=createmarkers
  $ hg log -G
  @  4:b0551702f918 (draft) [tip ] 2
  |
  o  1:e016b03fd86f (draft) [ ] 1
  |
  o  0:a78f55e5508c (draft) [ ] 0
  
  $ hg log -G --hidden
  @  4:b0551702f918 (draft) [tip ] 2
  |
  | x  3:f27abbcc1f77 (draft) [ ] temporary amend commit for e008cf283490
  | |
  | x  2:e008cf283490 (draft) [ ] 2
  |/
  o  1:e016b03fd86f (draft) [ ] 1
  |
  o  0:a78f55e5508c (draft) [ ] 0
  

  $ hg strip -r 1 --config extensions.strip=
  0 files updated, 0 files merged, 2 files removed, 0 files unresolved
  saved backup bundle to $TESTTMP/tmpe/issue4845/.hg/strip-backup/e016b03fd86f-c41c6bcc-backup.hg (glob)
  $ hg log -G
  @  0:a78f55e5508c (draft) [tip ] 0
  
  $ hg log -G --hidden
  @  0:a78f55e5508c (draft) [tip ] 0
  

  $ hg pull .hg/strip-backup/*
  pulling from .hg/strip-backup/e016b03fd86f-c41c6bcc-backup.hg
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 2 changesets with 2 changes to 2 files
  (run 'hg update' to get a working copy)
  $ hg log -G
  o  2:b0551702f918 (draft) [tip ] 2
  |
  o  1:e016b03fd86f (draft) [ ] 1
  |
  @  0:a78f55e5508c (draft) [ ] 0
  
  $ hg log -G --hidden
  o  2:b0551702f918 (draft) [tip ] 2
  |
  o  1:e016b03fd86f (draft) [ ] 1
  |
  @  0:a78f55e5508c (draft) [ ] 0
  
Test that 'hg debugobsolete --index --rev' can show indices of obsmarkers when
only a subset of those are displayed (because of --rev option)
  $ hg init doindexrev
  $ cd doindexrev
  $ echo a > a
  $ hg ci -Am a
  adding a
  $ hg ci --amend -m aa
  $ echo b > b
  $ hg ci -Am b
  adding b
  $ hg ci --amend -m bb
  $ echo c > c
  $ hg ci -Am c
  adding c
  $ hg ci --amend -m cc
  $ echo d > d
  $ hg ci -Am d
  adding d
  $ hg ci --amend -m dd
  $ hg debugobsolete --index --rev "3+7"
  1 6fdef60fcbabbd3d50e9b9cbc2a240724b91a5e1 d27fb9b066076fd921277a4b9e8b9cb48c95bc6a 0 \(.*\) {'user': 'test'} (re)
  3 4715cf767440ed891755448016c2b8cf70760c30 7ae79c5d60f049c7b0dd02f5f25b9d60aaf7b36d 0 \(.*\) {'user': 'test'} (re)
  $ hg debugobsolete --index --rev "3+7" -Tjson
  [
   {
    "date": *, (glob)
    "flag": 0,
    "index": 1,
    "metadata": {"user": "test"},
    "precnode": "6fdef60fcbabbd3d50e9b9cbc2a240724b91a5e1",
    "succnodes": ["d27fb9b066076fd921277a4b9e8b9cb48c95bc6a"]
   },
   {
    "date": *, (glob)
    "flag": 0,
    "index": 3,
    "metadata": {"user": "test"},
    "precnode": "4715cf767440ed891755448016c2b8cf70760c30",
    "succnodes": ["7ae79c5d60f049c7b0dd02f5f25b9d60aaf7b36d"]
   }
  ]

Test the --delete option of debugobsolete command
  $ hg debugobsolete --index
  0 cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b f9bd49731b0b175e42992a3c8fa6c678b2bc11f1 0 \(.*\) {'user': 'test'} (re)
  1 6fdef60fcbabbd3d50e9b9cbc2a240724b91a5e1 d27fb9b066076fd921277a4b9e8b9cb48c95bc6a 0 \(.*\) {'user': 'test'} (re)
  2 1ab51af8f9b41ef8c7f6f3312d4706d870b1fb74 29346082e4a9e27042b62d2da0e2de211c027621 0 \(.*\) {'user': 'test'} (re)
  3 4715cf767440ed891755448016c2b8cf70760c30 7ae79c5d60f049c7b0dd02f5f25b9d60aaf7b36d 0 \(.*\) {'user': 'test'} (re)
  $ hg debugobsolete --delete 1 --delete 3
  deleted 2 obsolescence markers
  $ hg debugobsolete
  cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b f9bd49731b0b175e42992a3c8fa6c678b2bc11f1 0 \(.*\) {'user': 'test'} (re)
  1ab51af8f9b41ef8c7f6f3312d4706d870b1fb74 29346082e4a9e27042b62d2da0e2de211c027621 0 \(.*\) {'user': 'test'} (re)
  $ cd ..