Add watch task

Also, turn digests off in development

Procfile.dev

@@ -0,0 +1,2 @@
+web: bin/rails server -p 3090
+css: bin/rails dartsass:watch

bin/dev

@@ -0,0 +1,8 @@
+#!/usr/bin/env sh
+
+if ! gem list foreman -i --silent; then
+  echo "Installing foreman..."
+  gem install foreman
+fi
+
+exec foreman start -f Procfile.dev "$@"

config/environments/development.rb

@@ -45,6 +45,9 @@
   # Suppress logger output for asset requests.
   config.assets.quiet = true
 
+  # To see the latest stylesheet changes, if running Sass in watch mode
+  config.assets.digest = false
+
   # Raises error for missing translations.
   config.i18n.raise_on_missing_translations = true
 

startup.sh

@@ -13,11 +13,10 @@ if [[ $1 == "--live" ]] ; then
   set_env "gov.uk"
   export GOVUK_PROXY_STATIC_ENABLED=true
   export PLEK_SERVICE_STATIC_URI=${PLEK_SERVICE_STATIC_URI-https://assets.publishing.service.gov.uk}
+  ./bin/dev
 else
   echo "ERROR: other startup modes are not supported"
   echo ""
   echo "https://docs.publishing.service.gov.uk/manual/local-frontend-development.html"
   exit 1
 fi
-
-bundle exec rails s -p 3090