Installing ruby/rbenv with Ansible

ruby_with_rbenv_playbook.yml

# from http://mmoya.org/blog/2013/02/22/installing-rubyrbenv-with-ansible/
# based on https://gist.github.com/v1nc3ntlaw/1441139#file-rbenv-install-system-wide-sh

---
- hosts: all
 
  vars:
    - rbenv_root: /usr/local/rbenv
    - ruby_version: 1.9.3-p385
 
  tasks:
    - name: rbenv | install build depends
      apt: pkg=$item state=latest install_recommends=no
      with_items:
        - build-essential
        - git
        - libcurl4-openssl-dev
        - libmysqlclient-dev
        - libreadline5-dev
        - libssl-dev
        - libxml2-dev
        - libxslt1-dev
        - zlib1g-dev
 
    - name: rbenv | update rbenv repo
      git: repo=git://github.com/sstephenson/rbenv.git dest=$rbenv_root version=v0.4.0
 
    - name: rbenv | add rbenv to path
      file: path=/usr/local/bin/rbenv src=${rbenv_root}/bin/rbenv state=link
 
    - name: rbenv | add rbenv initialization to profile
      template: src=templates/rbenv.sh.j2 dest=/etc/profile.d/rbenv.sh owner=root group=root mode=0755
 
    - name: rbenv | check ruby-build installed
      command: test -x /usr/local/bin/ruby-build
      register: rbuild_present
      ignore_errors: yes
 
    - name: rbenv | create temporary directory
      command: mktemp -d
      register: tempdir
      when_failed: $rbuild_present
 
    - name: rbenv | clone ruby-build repo
      git: repo=git://github.com/sstephenson/ruby-build.git dest=${tempdir.stdout}/ruby-build
      when_failed: $rbuild_present
 
    - name: rbenv | install ruby-build
      command: ./install.sh chdir=${tempdir.stdout}/ruby-build
      when_failed: $rbuild_present
 
    - name: rbenv | remove temporary directory
      file: path=${tempdir.stdout} state=absent
      when_failed: $rbuild_present
 
    - name: rbenv | check ruby $ruby_version installed
      shell: RBENV_ROOT=${rbenv_root} rbenv versions | grep $ruby_version
      register: ruby_installed
      ignore_errors: yes
 
    - name: rbenv | install ruby $ruby_version
      shell: RBENV_ROOT=${rbenv_root} rbenv install $ruby_version
      when_failed: $ruby_installed
 
    - name: rbenv | set global ruby $ruby_version
      shell: RBENV_ROOT=${rbenv_root} rbenv global $ruby_version
      when_failed: $ruby_installed
 
    - name: rbenv | rehash
      shell: RBENV_ROOT=${rbenv_root} rbenv rehash
      when_failed: $ruby_installed
 
    - name: rbenv | set gemrc
      copy: src=files/gemrc dest=/root/.gemrc owner=root group=root mode=0644