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.
#require serve ssl
$ wait_log() {
> pattern="$1"
> for s in $TESTDIR/seq.py 10; do
> if grep "$pattern" $TESTTMP/log > /dev/null ; then
> break
> fi
> sleep 1
> done
> }
Set up SMTP server:
$ CERTSDIR="$TESTDIR/sslcerts"
$ cat "$CERTSDIR/priv.pem" "$CERTSDIR/pub.pem" >> server.pem
$ "$PYTHON" "$TESTDIR/dummysmtpd.py" -p $HGPORT --pid-file a.pid --logfile log -d \
> --tls smtps --certificate `pwd`/server.pem
$ cat a.pid >> $DAEMON_PIDS
Set up repository:
$ hg init t
$ cd t
$ cat <<EOF >> .hg/hgrc
> [extensions]
> patchbomb =
> [email]
> method = smtp
> [smtp]
> host = localhost
> port = $HGPORT
> tls = smtps
> EOF
$ echo a > a
$ hg commit -Ama -d '1 0'
adding a
Utility functions:
$ DISABLECACERTS=
$ try () {
> hg email $DISABLECACERTS -f quux -t foo -c bar -r tip "$@"
> }
Our test cert is not signed by a trusted CA. It should fail to verify if
we are able to load CA certs:
#if no-defaultcacertsloaded
$ try
this patch series consists of 1 patches.
(an attempt was made to load CA certificates but none were loaded; see https://mercurial-scm.org/wiki/SecureConnections for how to configure Mercurial to avoid this error)
(?i)abort: .*?certificate.verify.failed.* (re)
[255]
$ wait_log "ssl error:"
$ cat ../log
* ssl error: * (glob)
$ : > ../log
#endif
#if defaultcacertsloaded
$ try
this patch series consists of 1 patches.
(the full certificate chain may not be available locally; see "hg help debugssl") (windows !)
(?i)abort: .*?certificate.verify.failed.* (re)
[255]
$ wait_log "ssl error:"
$ cat ../log
* ssl error: * (glob)
$ : > ../log
#endif
$ DISABLECACERTS="--config devel.disableloaddefaultcerts=true"
Without certificates:
$ try --debug
this patch series consists of 1 patches.
(using smtps)
sending mail: smtp host localhost, port * (glob)
(verifying remote certificate)
abort: unable to verify security of localhost (no loaded CA certificates); refusing to connect
(see https://mercurial-scm.org/wiki/SecureConnections for how to configure Mercurial to avoid this error or set hostsecurity.localhost:fingerprints=sha256:20:de:b3:ad:b4:cd:a5:42:f0:74:41:1c:a2:70:1e:da:6e:c0:5c:16:9e:e7:22:0f:f1:b7:e5:6e:e4:92:af:7e to trust this server)
[150]
$ wait_log "no hello:"
$ cat ../log
connection from * (glob)
no hello: b''
$ : > ../log
With global certificates:
$ try --debug --config web.cacerts="$CERTSDIR/pub.pem"
this patch series consists of 1 patches.
(using smtps)
sending mail: smtp host localhost, port * (glob)
(verifying remote certificate)
sending [PATCH] a ...
$ cat ../log
connection from * (glob)
* from=quux to=foo, bar (glob)
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
Subject: [PATCH] a
X-Mercurial-Node: 8580ff50825a50c8f716709acdf8de0deddcd6ab
X-Mercurial-Series-Index: 1
X-Mercurial-Series-Total: 1
Message-Id: <*@test-hostname> (glob)
X-Mercurial-Series-Id: <*@test-hostname> (glob)
User-Agent: Mercurial-patchbomb* (glob)
Date: * (glob)
From: quux
To: foo
Cc: bar
# HG changeset patch
# User test
# Date 1 0
# Thu Jan 01 00:00:01 1970 +0000
# Node ID 8580ff50825a50c8f716709acdf8de0deddcd6ab
# Parent 0000000000000000000000000000000000000000
a
diff -r 0000000000000000000000000000000000000000 -r 8580ff50825a50c8f716709acdf8de0deddcd6ab a
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/a Thu Jan 01 00:00:01 1970 +0000
@@ -0,0 +1,1 @@
+a
$ : > ../log
With invalid certificates:
$ try --config web.cacerts="$CERTSDIR/pub-other.pem"
this patch series consists of 1 patches.
(the full certificate chain may not be available locally; see "hg help debugssl") (windows !)
(?i)abort: .*?certificate.verify.failed.* (re)
[255]
$ wait_log "ssl error:"
$ cat ../log
* ssl error: * (glob)
$ : > ../log
$ cd ..