Remove ruby dependencies.

Sass compilation is no longer dependent on Ruby, so we are
removing its dependencies.

.gitignore

@@ -66,7 +66,6 @@ django-pyfs
 .prereqs_cache
 .vagrant/
 node_modules
-.bundle/
 bin/
 
 ### Static assets pipeline artifacts

circle.yml

@@ -10,7 +10,6 @@ general:
 dependencies:
   override:
     - npm install
-    - bundle install
 
     - pip install setuptools
     - pip install --exists-action w -r requirements/edx/paver.txt

pavelib/assets.py

@@ -355,7 +355,6 @@ def watch_assets(options):
 
 @task
 @needs(
-    'pavelib.prereqs.install_ruby_prereqs',
     'pavelib.prereqs.install_node_prereqs',
 )
 @consume_args

pavelib/prereqs.py

@@ -1,5 +1,5 @@
 """
-Install Python, Ruby, and Node prerequisites.
+Install Python and Node prerequisites.
 """
 
 from distutils import sysconfig
@@ -121,13 +121,6 @@ def prereq_cache(cache_name, paths, install_func):
         print '{cache} unchanged, skipping...'.format(cache=cache_name)
 
 
-def ruby_prereqs_installation():
-    """
-    Installs Ruby prereqs
-    """
-    sh('bundle install --quiet')
-
-
 def node_prereqs_installation():
     """
     Configures npm and installs Node prerequisites
@@ -146,18 +139,6 @@ def python_prereqs_installation():
         sh("pip install -q --disable-pip-version-check --exists-action w -r {req_file}".format(req_file=req_file))
 
 
-@task
-def install_ruby_prereqs():
-    """
-    Installs Ruby prereqs
-    """
-    if no_prereq_install():
-        print NO_PREREQ_MESSAGE
-        return
-
-    prereq_cache("Ruby prereqs", ["Gemfile"], ruby_prereqs_installation)
-
-
 @task
 def install_node_prereqs():
     """
@@ -259,13 +240,12 @@ def install_python_prereqs():
 @task
 def install_prereqs():
     """
-    Installs Ruby, Node and Python prerequisites
+    Installs Node and Python prerequisites
     """
     if no_prereq_install():
         print NO_PREREQ_MESSAGE
         return
 
-    install_ruby_prereqs()
     install_node_prereqs()
     uninstall_python_packages()
     install_python_prereqs()

scripts/jenkins-common.sh

@@ -12,19 +12,6 @@ mongo --quiet --eval 'db.getMongo().getDBNames().forEach(function(i){db.getSibli
 # not already be fetched.
 git fetch origin master:refs/remotes/origin/master
 
-# Reset the jenkins worker's ruby environment back to
-# the state it was in when the instance was spun up.
-if [ -e $HOME/edx-rbenv_clean.tar.gz ]; then
-    rm -rf $HOME/.rbenv
-    tar -C $HOME -xf $HOME/edx-rbenv_clean.tar.gz
-fi
-
-# Bootstrap Ruby requirements so we can run the tests
-bundle install
-
-# Ensure the Ruby environment contains no stray gems
-bundle clean --force
-
 # Reset the jenkins worker's virtualenv back to the
 # state it was in when the instance was spun up.
 if [ -e $HOME/edx-venv_clean.tar.gz ]; then