branchcache: add a "pure topological head" fast path
In a narrow but actually quick common case, all topological heads are all on
the same branch and all open. In this case, computing the branch map is very
simple. We can quickly detect situation where this situation will not change.
So we update the V3 format to be able to express this situation and upgrade the
update code to detect we remains in that mode.
The branch cache is populated with the actual value when the branch map is
accessed, but the update_disk method can do the update without needing to
populate it.
$ hg init test
$ cd test
$ hg debugbuilddag '+2'
$ hg phase --public 0
$ hg serve -p $HGPORT -d --pid-file=hg.pid -E errors.log
$ cat hg.pid >> $DAEMON_PIDS
$ cd ..
$ hg init test2
$ cd test2
$ hg incoming http://foo:xyzzy@localhost:$HGPORT/ -T '{desc}\n'
comparing with http://foo:***@localhost:$HGPORT/
r0
r1
$ killdaemons.py
$ cd ..
$ hg -R test --config server.view=immutable serve -p $HGPORT -d --pid-file=hg.pid -E errors.log
$ cat hg.pid >> $DAEMON_PIDS
$ hg -R test2 incoming http://foo:xyzzy@localhost:$HGPORT/ -T '{desc}\n'
comparing with http://foo:***@localhost:$HGPORT/
r0
Check same result using `experimental.extra-filter-revs`
$ hg -R test --config experimental.extra-filter-revs='not public()' serve -p $HGPORT1 -d --pid-file=hg2.pid -E errors.log
$ cat hg2.pid >> $DAEMON_PIDS
$ hg -R test2 incoming http://foo:xyzzy@localhost:$HGPORT1/
comparing with http://foo:***@localhost:$HGPORT1/
changeset: 0:1ea73414a91b
tag: tip
user: debugbuilddag
date: Thu Jan 01 00:00:00 1970 +0000
summary: r0
$ hg -R test --config experimental.extra-filter-revs='not public()' debugupdatecache
$ ls -1 test/.hg/cache/
branch2-base%89c45d2fa07e
branch2-served
hgtagsfnodes1
rbc-names-v1
rbc-revs-v1
tags2
tags2-served%89c45d2fa07e
cleanup
$ cat errors.log
$ killdaemons.py
Check the behavior is other filtered revision exists
----------------------------------------------------
add more content and complexity to the repository too
$ hg -R test debugbuilddag '+6:branchpoint.:left+4*branchpoint.:right+5' --from-existing
$ hg -R test phase --public 'desc("re:^r11$")'
$ hg -R test phase --secret --force 'desc("re:^r9$")'
$ hg -R test log -G -T '{desc} {phase}\n'
o r17 draft
|
o r16 draft
|
o r15 draft
|
o r14 draft
|
o r13 draft
|
o r12 draft
|
o r11 public
|
| o r10 secret
| |
| o r9 secret
| |
| o r8 draft
| |
| o r7 draft
| |
| o r6 draft
|/
o r5 public
|
o r4 public
|
o r3 public
|
o r2 public
|
o r1 public
|
o r0 public
$ hg -R test --config experimental.extra-filter-revs='(desc("re:^r13$") + desc("re:^r10$"))::' serve -p $HGPORT1 -d --pid-file=hg2.pid -E errors.log
$ cat hg2.pid >> $DAEMON_PIDS
$ hg -R test2 incoming http://foo:xyzzy@localhost:$HGPORT1/ -T '{desc}\n'
comparing with http://foo:***@localhost:$HGPORT1/
r0
r1
r2
r3
r4
r5
r6
r7
r8
r11
r12
cleanups
$ cat errors.log
$ killdaemons.py