view tests/test-wireproto.t @ 3573:d53277cdc1e7

evolve: handle stabilization of merge changeset with both parents obsoleted

This patch adds logic to stabilize an orphan merge changeset having both parents
obsoleted.

The logic tries to first stabilize the merge changeset on successor of second
parent and then stabilize the new changeset formed on the successor of first
parent. We are stabilizing on second parent first and then to second parent to
preserve the first parent's successor as first parent of the merge changeset.

Conflicts can occcur and we can loose processing information, therefore we store
a variable in statefile `orphanmerge` which represents whether we are processing
a merge changeset with both parents obsoleted.

Thanks to Pierre-Yves David for suggesting this way and helping to understand
the correctness of this.

More rigourous test cases for this will be added in next patch.

  $ cat >> $HGRCPATH <<EOF
  > [defaults]
  > amend=-d "0 0"
  > [experimental]
  > obsmarkers-exchange-debug=true
  > bundle2-exp=true
  > [ui]
  > ssh=python "$RUNTESTDIR/dummyssh"
  > [phases]
  > publish = False
  > [extensions]
  > EOF
  $ echo "evolve=$(echo $(dirname $TESTDIR))/hgext3rd/evolve/" >> $HGRCPATH

  $ mkcommit() {
  >    echo "$1" > "$1"
  >    hg add "$1"
  >    hg ci -m "add $1"
  > }

setup repo

  $ hg init server

  $ hg clone ssh://user@dummy/server client
  no changes found
  updating to branch default
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ cp -r client other

Smoke testing
===============.t

  $ cd client
  $ mkcommit 0
  $ mkcommit a
  $ hg push
  pushing to ssh://user@dummy/server
  searching for changes
  remote: adding changesets
  remote: adding manifests
  remote: adding file changes
  remote: added 2 changesets with 2 changes to 2 files
  $ hg pull
  pulling from ssh://user@dummy/server
  searching for changes
  no changes found
  $ hg pull -R ../other
  pulling from ssh://user@dummy/server
  requesting all changes
  adding changesets
  adding manifests
  adding file changes
  added 2 changesets with 2 changes to 2 files
  new changesets 8685c6d34325:4957bfdac07e
  (run 'hg update' to get a working copy)
  $ hg push -R ../other
  pushing to ssh://user@dummy/server
  searching for changes
  no changes found
  [1]

Push
=============

  $ echo 'A' > a
  $ hg amend
  $ hg push
  pushing to ssh://user@dummy/server
  searching for changes
  remote: adding changesets
  remote: adding manifests
  remote: adding file changes
  remote: added 1 changesets with 1 changes to 1 files (+1 heads)
  remote: obsmarker-exchange: 92 bytes received
  remote: 1 new obsolescence markers
  remote: obsoleted 1 changesets
  $ hg push
  pushing to ssh://user@dummy/server
  searching for changes
  no changes found
  [1]

Pull
=============

  $ hg -R ../other pull
  pulling from ssh://user@dummy/server
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to [12] files \(\+1 heads\) (re)
  obsmarker-exchange: 92 bytes received
  1 new obsolescence markers
  obsoleted 1 changesets
  new changesets 9d1c114e7797
  (run 'hg heads' to see heads)
  $ hg -R ../other pull
  pulling from ssh://user@dummy/server
  searching for changes
  no changes found

Test some markers discovery
===========================

  $ echo c > C
  $ hg add C
  $ hg commit -m C
  $ echo c >> C
  $ hg amend
  $ hg push
  pushing to ssh://user@dummy/server
  searching for changes
  remote: adding changesets
  remote: adding manifests
  remote: adding file changes
  remote: added 1 changesets with 1 changes to 1 files
  remote: obsmarker-exchange: 92 bytes received
  remote: 1 new obsolescence markers
  $ hg -R ../other pull
  pulling from ssh://user@dummy/server
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files
  obsmarker-exchange: 92 bytes received
  1 new obsolescence markers
  new changesets a5687ec59dd4
  (run 'hg update' to get a working copy)

some common hidden

  $ hg touch .
  $ hg push
  pushing to ssh://user@dummy/server
  searching for changes
  remote: adding changesets
  remote: adding manifests
  remote: adding file changes
  remote: added 1 changesets with 0 changes to 1 files (+1 heads)
  remote: obsmarker-exchange: 183 bytes received
  remote: 1 new obsolescence markers
  remote: obsoleted 1 changesets
  $ hg -R ../other pull
  pulling from ssh://user@dummy/server
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 0 changes to 1 files (+1 heads)
  obsmarker-exchange: 183 bytes received
  1 new obsolescence markers
  obsoleted 1 changesets
  new changesets * (glob)
  (run 'hg heads' to see heads)

test discovery avoid exchanging known markers

  $ hg push
  pushing to ssh://user@dummy/server
  searching for changes
  no changes found
  [1]
  $ hg -R ../other pull
  pulling from ssh://user@dummy/server
  searching for changes
  no changes found

test discovery can be disabled

  $ hg push --config experimental.evolution.obsdiscovery=no
  pushing to ssh://user@dummy/server
  searching for changes
  (skipping discovery of obsolescence markers, will exchange everything)
  (controled by 'experimental.evolution.obsdiscovery' configuration)
  no changes found
  remote: obsmarker-exchange: 274 bytes received
  [1]
  $ hg -R ../other pull --config experimental.evolution.obsdiscovery=no
  pulling from ssh://user@dummy/server
  searching for changes
  no changes found
  (skipping discovery of obsolescence markers, will exchange everything)
  (controled by 'experimental.evolution.obsdiscovery' configuration)
  obsmarker-exchange: 274 bytes received

  $ cd ..

And disable it server side too:

  $ hg serve -R server -n test -p $HGPORT -d --pid-file=hg.pid -A access.log -E errors.log  --config experimental.evolution.obsdiscovery=no
  $ cat hg.pid >> $DAEMON_PIDS

  $ curl -s http://localhost:$HGPORT/?cmd=capabilities
  _evoext_getbundle_obscommon batch branchmap bundle2=HG20%0Abookmarks%0Achangegroup%3D01%2C02%0Adigests%3Dmd5%2Csha1%2Csha512%0Aerror%3Dabort%2Cunsupportedcontent%2Cpushraced%2Cpushkey%0Ahgtagsfnodes%0Alistkeys%0Aobsmarkers%3DV0%2CV1%0Aphases%3Dheads%0Apushkey%0Aremote-changegroup%3Dhttp%2Chttps%0Arev-branch-cache changegroupsubset compression=*zlib getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash (no-eol) (glob)

Check we cannot use pushkey for marker exchange anymore

  $ hg debugpushkey http://localhost:$HGPORT/ obsolete
  abort: HTTP Error 410: won't exchange obsmarkers through pushkey
  [255]
  $ cat errors.log
  $ hg debugpushkey ssh://user@dummy/server obsolete
  remote: abort: won't exchange obsmarkers through pushkey
  remote: (upgrade your client or server to use the bundle2 protocol)
  abort: unexpected response: empty string
  [255]

(do some extra pulling to be sure)

  $ hg -R client pull http://localhost:$HGPORT/
  pulling from http://localhost:$HGPORT/
  searching for changes
  no changes found
  obsmarker-exchange: 274 bytes received

  $ hg -R client pull http://localhost:$HGPORT/ --config experimental.evolution=createmarkers
  pulling from http://localhost:$HGPORT/
  searching for changes
  no changes found

  $ hg -R client pull http://localhost:$HGPORT/ --config experimental.evolution=createmarkers --config extensions.evolve='!'
  pulling from http://localhost:$HGPORT/
  searching for changes
  no changes found

But we do let it goes fine on repository with exchange disabled:

  $ $RUNTESTDIR/killdaemons.py $DAEMON_PIDS
  $ hg serve -R server -n test -p $HGPORT -d --pid-file=hg.pid -A access.log -E errors.log  --config experimental.evolution='!'
  $ hg debugpushkey http://localhost:$HGPORT/ obsolete

(do some extra pulling to be sure)

  $ hg -R client pull http://localhost:$HGPORT/
  pulling from http://localhost:$HGPORT/
  searching for changes
  no changes found

  $ hg -R client pull http://localhost:$HGPORT/ --config experimental.evolution=createmarkers
  pulling from http://localhost:$HGPORT/
  searching for changes
  no changes found

  $ hg -R client pull http://localhost:$HGPORT/ --config experimental.evolution=createmarkers --config extensions.evolve='!'
  pulling from http://localhost:$HGPORT/
  searching for changes
  no changes found

  $ $RUNTESTDIR/killdaemons.py $DAEMON_PIDS