evolve: fix divergence resolution when not merging a descendant
In divergence resolution, when we merge other cset with divergent one
we pass a `mergeancestor` arg to merge.update() and before this patch
we were passing `mergeancestor` as True in every case.
But it should be True only when we are merging a descendant onto an
ancestor.
When mergeancestor is True it does two things:
1) allows the merge if the destination is the same as the parent
of the ctx (so we can use graft to copy commits)
2) informs update that the incoming changes are newer than the
destination so it doesn't prompt about "remote changed foo
which local deleted".
So this patch change it to pass `mergeancestor` as True only when
it is required.
And changes in test file shows that it wasn't prompting either in
those cases when it should (acc. to 2nd point)
Test written by Pierre-Yves David, based the one updated in 5dbaabfe2c59.
==============================
Test cache warming strategy
test for range based discovery
==============================
$ . $TESTDIR/testlib/pythonpath.sh
$ cat << EOF >> $HGRCPATH
> [extensions]
> hgext3rd.evolve =
> blackbox =
> [defaults]
> blackbox = -l 100
> [experimental]
> obshashrange=1
> verbose-obsolescence-exchange=1
> [ui]
> logtemplate = "{rev} {node|short} {desc} {tags}\n"
> ssh=python "$RUNTESTDIR/dummyssh"
> [alias]
> debugobsolete=debugobsolete -d '0 0'
> [ui]
> ssh=$PYTHON "$RUNTESTDIR/dummyssh"
> EOF
$ hg init main
$ hg -R main debugbuilddag '.+7'
$ for node in `hg -R main log -T '{node}\n'`; do
> printf $node | grep -o . | sort |tr -d "\n" > ancfile
> anc=`cat ancfile`
> rm ancfile
> echo "marking $anc as predecessors of $node"
> hg -R main debugobsolete $anc $node
> done
marking 000011223334456677789aaaaabbbbcccddddeef as predecessors of 4de32a90b66cd083ebf3c00b41277aa7abca51dd
marking 012234455555666699aaaaabbbccccccefffffff as predecessors of f69452c5b1af6cbaaa56ef50cf94fff5bcc6ca23
marking 00001122233445555777778889999abbcccddeef as predecessors of c8d03c1b5e94af74b772900c58259d2e08917735
marking 0011222445667777889999aabbbbcddddeeeeeee as predecessors of bebd167eb94d257ace0e814aeb98e6972ed2970d
marking 000011222223344555566778899aaaabccddefff as predecessors of 2dc09a01254db841290af0538aa52f6f52c776e3
marking 01111222223333444455555566999abbbbcceeef as predecessors of 01241442b3c2bf3211e593b549c655ea65b295e3
marking 01122444445555566677888aabbcccddddefffff as predecessors of 66f7d451a68b85ed82ff5fcc254daf50c74144bd
marking 000111111234444467777889999aaaabcdeeeeff as predecessors of 1ea73414a91b0920940797d8fc6a11e447f8ea1e
$ hg debugobsolete -R main
000011223334456677789aaaaabbbbcccddddeef 4de32a90b66cd083ebf3c00b41277aa7abca51dd 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
012234455555666699aaaaabbbccccccefffffff f69452c5b1af6cbaaa56ef50cf94fff5bcc6ca23 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
00001122233445555777778889999abbcccddeef c8d03c1b5e94af74b772900c58259d2e08917735 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
0011222445667777889999aabbbbcddddeeeeeee bebd167eb94d257ace0e814aeb98e6972ed2970d 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
000011222223344555566778899aaaabccddefff 2dc09a01254db841290af0538aa52f6f52c776e3 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
01111222223333444455555566999abbbbcceeef 01241442b3c2bf3211e593b549c655ea65b295e3 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
01122444445555566677888aabbcccddddefffff 66f7d451a68b85ed82ff5fcc254daf50c74144bd 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
000111111234444467777889999aaaabcdeeeeff 1ea73414a91b0920940797d8fc6a11e447f8ea1e 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
Cache mode is "auto" so local commit did not warm the cache yet
$ f -s main/.hg/cache/evoext*
main/.hg/cache/evoext-obscache-00: size=72
Initial push
------------
$ hg init server
$ hg -R main push ssh://user@dummy/server
pushing to ssh://user@dummy/server
searching for changes
OBSEXC: computing relevant nodes
OBSEXC: looking for common markers in 8 nodes
OBSEXC: computing markers relevant to 8 nodes
remote: adding changesets
remote: adding manifests
remote: adding file changes
remote: added 8 changesets with 0 changes to 0 files
remote: 8 new obsolescence markers
sever cash is warm
$ f -s server/.hg/cache/evoext*
server/.hg/cache/evoext-depthcache-00: size=88
server/.hg/cache/evoext-firstmerge-00: size=88
server/.hg/cache/evoext-obscache-00: size=72
server/.hg/cache/evoext-stablesortcache-00: size=92
server/.hg/cache/evoext_obshashrange_v2.sqlite: size=?* (glob)
server/.hg/cache/evoext_stablerange_v2.sqlite: size=?* (glob)
client cash is warm
$ f -s main/.hg/cache/evoext*
main/.hg/cache/evoext-depthcache-00: size=88
main/.hg/cache/evoext-firstmerge-00: size=88
main/.hg/cache/evoext-obscache-00: size=72
main/.hg/cache/evoext-stablesortcache-00: size=92
main/.hg/cache/evoext_obshashrange_v2.sqlite: size=?* (glob)
main/.hg/cache/evoext_stablerange_v2.sqlite: size=?* (glob)
initial pull
------------
$ rm -rf main
$ hg init main
$ hg -R main pull ssh://user@dummy/server
pulling from ssh://user@dummy/server
requesting all changes
adding changesets
adding manifests
adding file changes
added 8 changesets with 0 changes to 0 files
8 new obsolescence markers
new changesets 1ea73414a91b:4de32a90b66c
(run 'hg update' to get a working copy)
client cache is empty because the discovery was empty
$ f -s main/.hg/cache/evoext*
main/.hg/cache/evoext-obscache-00: size=72
no op pull
------------
clear cache
$ rm -rf main/.hg/cache/evoext
pull nothing
$ hg -R main pull ssh://user@dummy/server
pulling from ssh://user@dummy/server
searching for changes
no changes found
OBSEXC: looking for common markers in 8 nodes
client cash is warm
$ f -s main/.hg/cache/evoext*
main/.hg/cache/evoext-depthcache-00: size=88
main/.hg/cache/evoext-firstmerge-00: size=88
main/.hg/cache/evoext-obscache-00: size=72
main/.hg/cache/evoext-stablesortcache-00: size=92
main/.hg/cache/evoext_obshashrange_v2.sqlite: size=?* (glob)
main/.hg/cache/evoext_stablerange_v2.sqlite: size=?* (glob)
no op push
------------
clear cache
$ rm -rf main/.hg/cache/evoext
push nothing
$ hg -R main push ssh://user@dummy/server
pushing to ssh://user@dummy/server
searching for changes
OBSEXC: computing relevant nodes
OBSEXC: looking for common markers in 8 nodes
OBSEXC: markers already in sync
no changes found
[1]
client cash is warm
$ f -s main/.hg/cache/evoext*
main/.hg/cache/evoext-depthcache-00: size=88
main/.hg/cache/evoext-firstmerge-00: size=88
main/.hg/cache/evoext-obscache-00: size=72
main/.hg/cache/evoext-stablesortcache-00: size=92
main/.hg/cache/evoext_obshashrange_v2.sqlite: size=?* (glob)
main/.hg/cache/evoext_stablerange_v2.sqlite: size=?* (glob)