#!/bin/bash cp $EXAMPLE_DIR/data/check_whitespace.py . hg init a cd a echo '[hooks]' > .hg/hgrc echo "pretxncommit.whitespace = hg export tip | (! grep -qP '^\\+.*[ \\t]$')" >> .hg/hgrc #$ name: simple cat .hg/hgrc echo 'a ' > a hg commit -A -m 'test with trailing whitespace'