transactions: avoid late tear-down (issue641)
We use weak references (ugh) to avoid having to manually delete
transaction references out of each call frame when an exception occurs.
#!/bin/sh
hg init test
cd test
echo '[web]' > .hg/hgrc
echo 'accesslog = access.log' >> .hg/hgrc
echo % Without -v
hg serve -a localhost -p 20063 -d --pid-file=hg.pid
cat hg.pid >> "$DAEMON_PIDS"
if [ -f access.log ]; then
echo 'access log created - .hg/hgrc respected'
fi
echo % With -v
hg serve -a localhost -p 20064 -d --pid-file=hg.pid -v
cat hg.pid >> "$DAEMON_PIDS"