tests/test-inotify-issue1556

cmdutil: changeset_printer: use methods of filectx/changectx.

This allows extensions that modify changeset metadata (e.g.
description) by overriding methods of changectx to get consistent
behavior from all log-like commands, regardless of whether templates
or styles are used. Without this, overriding changectx methods works
if you use styles or templates, but not with default log format.

This meant adding filectx.extra() for consistency with changectx.

#!/bin/sh

"$TESTDIR/hghave" inotify || exit 80

hg init

touch a b
hg add a b
rm b

echo % status without inotify
hg st

echo "[extensions]" >> $HGRCPATH
echo "inotify=" >> $HGRCPATH

echo % inserve
hg inserve -d --pid-file=hg.pid 2>&1
cat hg.pid >> "$DAEMON_PIDS"

echo % status
hg st

sleep 1
echo "Are we able to kill the service? if not, the service died on some error"
kill `cat hg.pid`