Replace grunt-contrib-compass with grunt-contrib-sass

Compass is not installable on newer node images, and older node images
uses Debian versions whose package repositories has gone. So upgrade
to a libsass using plugin.

docker-compose.yml

@@ -1,4 +1,3 @@
-version: "2"
 services:
 
   harvester:
@@ -26,5 +25,7 @@ services:
     build:
       context: .
       dockerfile: ./docker/node/Dockerfile
+    init: true
+    command: sh -c "npm install && grunt watch"
     volumes:
       - '.:/var/www/html'

docker/node/Dockerfile

@@ -2,11 +2,6 @@
 # to build
 FROM library/node
 
-# Install image libs
-RUN apt-get update && apt-get install -y ruby ruby-compass && \
-    apt-get clean && \
-    rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
-
 # Install Bower & Grunt
 RUN npm install -g bower grunt-cli && \
     echo '{ "allow_root": true }' > /root/.bowerrc
@@ -15,6 +10,3 @@ RUN npm install -g bower grunt-cli && \
 WORKDIR /var/www/html
 
 COPY . /var/www/html
-
-# Install everything
-RUN npm install && bower install

gruntfile.js

@@ -95,7 +95,7 @@ module.exports = function (grunt) {
       }
     },
     // Compass and SCSS
-    compass: {
+    sass: {
       options: {
         httpPath: '/profiles/scribo/themes/scribe',
         imagesDir: 'img',
@@ -116,7 +116,7 @@ module.exports = function (grunt) {
     }
   });
 
-  grunt.loadNpmTasks('grunt-contrib-compass');
+  grunt.loadNpmTasks('grunt-contrib-sass');
   grunt.loadNpmTasks('grunt-contrib-coffee');
   grunt.loadNpmTasks('grunt-contrib-jshint');
   grunt.loadNpmTasks('grunt-contrib-uglify');