subrepo: use safehasattr instead of hasattr
Some of these instances could be rewritten as clever getattr(x, y,
default) ladders, but that felt like it impeded readability too much
to be worth the modest efficiency gain.
$ "$TESTDIR/hghave" inotify || exit 80
$ hg init
$ touch a b
$ hg add a b
$ rm b
status without inotify
$ hg st
A a
! b
$ echo "[extensions]" >> $HGRCPATH
$ echo "inotify=" >> $HGRCPATH
inserve
$ hg inserve -d --pid-file=hg.pid 2>&1
$ cat hg.pid >> "$DAEMON_PIDS"
status
$ hg st
A a
! b
? hg.pid
$ sleep 1
Are we able to kill the service? if not, the service died on some error
$ kill `cat hg.pid`