Abort if earlygetopt fails to detect an option. Otherwise it could happen that a command is used on the wrong repository, because abbreviations of --cwd or --repository were ignored.

#!/bin/sh

hg init a
echo a > a/a
hg --cwd a ci -A -m a
hg clone a b
echo b > b/b
hg --cwd b ci -A -m b
chmod 100 a/.hg/store
hg --cwd b push ../a
chmod 700 a/.hg/store