Add autograde feature for rvm and keep the installer script locally

tasks/main.yml

@@ -1,33 +1,44 @@
 ---
-- name: detect rvm installation
+- name: detect rvm profile
   stat: path=/etc/profile.d/rvm.sh
-  register: rvm_installation
+  register: rvm_profile
+
+- name: detect rvm installer
+  stat: path={{ ruby_temp_download_path }}/rvm-installer.sh
+  register: rvm_installer
+
+- name: detect current rvm version
+  shell: "{{ ruby_rvm_install_path }}/bin/rvm version"
+  register: rvm_current_version
+  when: rvm_profile.stat.exists
+
+- name: detect latest rvm version
+  uri: url=https://raw.githubusercontent.com/wayneeseguin/rvm/master/VERSION return_content=yes
+  register: rvm_latest_version
 
 - name: ensure rvm installer is downloaded
   get_url:
     url: https://get.rvm.io
     dest: "{{ ruby_temp_download_path }}/rvm-installer.sh"
-  when: not rvm_installation.stat.exists
+  when: not rvm_installer.stat.exists or ruby_rvm_force_upgrade_installer
 
 - name: ensure rvm installer is configured
   file:
     path: "{{ ruby_temp_download_path }}/rvm-installer.sh"
     mode: 0755
-  when: not rvm_installation.stat.exists
+  when: not rvm_profile.stat.exists or ruby_rvm_force_upgrade_installer
 
 - name: ensure rvm stable is installed
   command: "{{ ruby_temp_download_path }}/rvm-installer.sh --path {{ ruby_rvm_install_path }} stable"
-  when: not rvm_installation.stat.exists
+  when: not rvm_profile.stat.exists
 
-- name: ensure rvm installer is deleted
-  file:
-    path: "{{ ruby_temp_download_path }}/rvm-installer.sh"
-    state: absent
-  when: not rvm_installation.stat.exists
+- name: ensure rvm is upgraded
+  shell: "{{ ruby_rvm_install_path }}/bin/rvm get stable && {{ ruby_rvm_install_path }}/bin/rvm reload"
+  when: not rvm_latest_version.content[:-1] in rvm_current_version.stdout and rvm_profile.stat.exists and not ruby_rvm_skip_upgrade
 
 - name: ensure rvm installs ruby dependencies
   command: "{{ ruby_rvm_install_path }}/bin/rvm autolibs 3"
-  when: not rvm_installation.stat.exists
+  when: not rvm_profile.stat.exists
 
 - name: detect if ruby version is installed
   stat: path={{ ruby_rvm_install_path }}/rubies/ruby-{{ ruby_version }}
@@ -43,4 +54,4 @@
 
 - name: ensure default ruby is selected
   shell: source /etc/profile.d/rvm.sh && rvm use ruby-{{ ruby_version }} --default executable=/bin/bash
-  when: ruby_selected.stdout == '' or ruby_version not in ruby_selected.stdout
+  when: ruby_selected.stdout == '' or ruby_version not in ruby_selected.stdout