branchcache: skip entries that are topological heads in the on disk file
In the majority of cases, topological heads are also branch heads. We have
efficient way to get the topological heads and efficient way to retrieve
their branch information. So there is little value in putting them in the branch
cache file explicitly. On the contrary, writing them explicitly tend to create
very large cache file that are inefficient to read and update.
So the branch cache v3 format is no longer including them. This changeset focus
on the format aspect and have no focus on the performance aspect. We will cover
that later.
$ 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