core/scripts/build_frontend

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# Builds the frontend for production
# Call 'build_frontend demo' to build a demo frontend.
# If current pwd is scripts, go 1 up.
if [ ${PWD##*/} == "scripts" ]; then
cd ..
fi
scripts/build_js $1
# To build the frontend, you need node, bower, vulcanize and html-minifier
# npm install -g bower vulcanize html-minifier
# Install dependencies
cd homeassistant/components/frontend/www_static/polymer
bower install
cd ..
cp polymer/bower_components/webcomponentsjs/webcomponents-lite.min.js .
vulcanize --inline-css --inline-scripts --strip-comments polymer/home-assistant.html > frontend.html
# html-minifier crashes on frontend, minimize kills the CSS
# html-minifier --config-file polymer/html-minifier.conf -o frontend.html frontend.html
# Generate the MD5 hash of the new frontend
cd ..
echo '""" DO NOT MODIFY. Auto-generated by build_frontend script """' > version.py
if [ $(command -v md5) ]; then
echo 'VERSION = "'`md5 -q www_static/frontend.html`'"' >> version.py
elif [ $(command -v md5sum) ]; then
echo 'VERSION = "'`md5sum www_static/frontend.html | cut -c-32`'"' >> version.py
else
echo 'Could not find an MD5 utility'
fi