bos@144: $ \textbf{cat .hg/hgrc}
bos@144: [hooks]
bos@144: pretxncommit.msglen = test `hg tip --template \{desc\} | wc -c` -ge 10
bos@144: $ \textbf{echo a > a}
bos@144: $ \textbf{hg add a}
bos@144: $ \textbf{hg commit -A -m 'too short'}
bos@144: abort: pretxncommit.msglen hook exited with status 1
bos@144: transaction abort!
bos@144: rollback completed
bos@144: $ \textbf{hg commit -A -m 'long enough'}