Correct optimization from 3464f5e77f34; add a test.
If there are two (or more) heads that point to the same .hgtags
node, we can safely skip parsing the file in all but the last head.
(In 3464f5e77f34, we were parsing the file in the first head and
skipping all the others.)
#!/bin/sh
hg init test
cd test
cat >sometext.txt <<ENDSOME
This is just some random text
that will go inside the file and take a few lines.
It is very boring to read, but computers don't
care about things like that.
ENDSOME
hg add sometext.txt
hg commit -d "1 0" -m "Just some text"
hg serve -p 20059 -A access.log -E error.log -d --pid-file=hg.pid
cat hg.pid >> $DAEMON_PIDS
("$TESTDIR/get-with-headers.py" localhost:20059 '/?f=f165dc289438;file=sometext.txt;style=raw' content-type content-length content-disposition) >getoutput.txt &
sleep 5
kill `cat hg.pid`
sleep 1 # wait for server to scream and die
cat getoutput.txt
cat access.log error.log | \
sed 's/^[^ ]*\( [^[]*\[\)[^]]*\(\].*\)$/host\1date\2/'