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.
#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 ..