Add feature to install rbenv and ruby-build from tarball

attributes/default.rb

@@ -24,8 +24,28 @@
 default[:rbenv][:git_revision]        = "master"
 default[:rbenv][:install_prefix]      = "/opt"
 
+# This can be `git` or `file`. If git, rbenv is installed from GitHub 
+# like a standard install. If `file`, it is installed by using a file
+# from the cookbook. See node[:rbenv][:filename] below
+default[:rbenv][:install_method] = "git"
+
+# Path to rbenv tar.gz file. Assumed to have an name in the form
+# `rbenv-version.tar.gz` which contains a directory
+# `rbenv-master`. This is based on what you get when you download
+# the master branch as a tarball from GitHub
+default[:rbenv][:filename]       = nil
+default[:rbenv][:cookbook]       = nil
+
 default[:ruby_build][:git_repository] = "git://github.com/sstephenson/ruby-build.git"
 default[:ruby_build][:git_revision]   = "master"
 
+# See node[:rbenv][:install_method] above
+default[:ruby_build][:install_method] = "git"
+# Path to ruby-build tar.gz file. Assumed to have an name in the form
+# `ruby-build-version.tar.gz` which contains a directory
+# `ruby-build-version`.
+default[:ruby_build][:filename]       = nil
+default[:ruby_build][:cookbook]       = nil
+
 default[:rbenv_vars][:git_repository] = "git://github.com/sstephenson/rbenv-vars.git"
 default[:rbenv_vars][:git_revision]   = "master"

recipes/default.rb

@@ -35,20 +35,71 @@
   supports :manage_home => true
 end
 
-directory node[:rbenv][:root] do
-  owner "rbenv"
-  group "rbenv"
-  mode "0775"
-end
+case node[:rbenv][:install_method]
+when "git"
+  directory node[:rbenv][:root] do
+    owner "rbenv"
+    group "rbenv"
+    mode "0775"
+  end
 
-git node[:rbenv][:root] do
-  repository node[:rbenv][:git_repository]
-  reference node[:rbenv][:git_revision]
-  user "rbenv"
-  group "rbenv"
-  action :sync
+  git node[:rbenv][:root] do
+    repository node[:rbenv][:git_repository]
+    reference node[:rbenv][:git_revision]
+    user "rbenv"
+    group "rbenv"
+    action :sync
+
+    notifies :create, "template[/etc/profile.d/rbenv.sh]", :immediately
+  end
+when "file"
+  cache_path = File.join(node[:rbenv][:root], "cache")
+  node.set[:rbenv][:cache_path] = cache_path
+
+
+  cookbook_file node[:rbenv][:filename] do
+    owner "rbenv"
+    group "rbenv"
+    mode 0644
+    path File.join(Chef::Config[:file_cache_path], node[:rbenv][:filename])
+    cookbook node[:rbenv][:cookbook]
+  end
+
+  rbenv_file = node[:rbenv][:filename]
+  rbenv_version = File.basename(rbenv_file, "tar.gz")
+  rbenv_dir = File.join(Chef::Config[:file_cache_path], rbenv_version)
+
+  bash "extract rbenv" do
+    cwd Chef::Config[:file_cache_path]
+    code <<-EOH
+      tar xzf "#{rbenv_file}"
+      mv rbenv-master "#{node[:rbenv][:root]}"
+    EOH
+    notifies :create, "directory[#{node[:rbenv][:root]}]", :immediately
+    not_if {
+      File.exists?(node[:rbenv][:root]) && node[:rbenv][:installed_version] == rbenv_version
+    }
+    notifies :create, "template[/etc/profile.d/rbenv.sh]", :immediately
+  end
+
+  directory cache_path do
+    owner "rbenv"
+    group "rbenv"
+    mode 0755
+  end
+
+  directory node[:rbenv][:root] do
+    owner "rbenv"
+    group "rbenv"
+    mode "0775"
+    recursive true
+    action :nothing
+  end
 
-  notifies :create, "template[/etc/profile.d/rbenv.sh]", :immediately
+  node.set[:rbenv][:installed_version] = rbenv_version
+else
+  Chef::Log.error("Invalid install method for rbenv: #{node[:rbenv][:install_method]}")
+  raise "Invalid install method: #{node[:rbenv][:install_method]}"
 end
 
 template "/etc/profile.d/rbenv.sh" do

recipes/ruby_build.rb

@@ -21,14 +21,41 @@
 
 include_recipe "git"
 
-git "#{Chef::Config[:file_cache_path]}/ruby-build" do
-  repository node[:ruby_build][:git_repository]
-  reference node[:ruby_build][:git_revision]
-  action :sync
+Chef::Log.info("Installing ruby-build using #{node[:ruby_build][:install_method]}")
+case node[:ruby_build][:install_method]
+when "git"
+
+  ruby_build_dir = "#{Chef::Config[:file_cache_path]}/ruby-build" 
+  git ruby_build_dir do
+    repository node[:ruby_build][:git_repository]
+    reference node[:ruby_build][:git_revision]
+    action :sync
+  end
+when "file"
+
+  cookbook_file node[:ruby_build][:filename] do
+    mode 0644
+    cookbook node[:rbenv][:cookbook]
+    path File.join(Chef::Config[:file_cache_path], node[:ruby_build][:filename])
+  end
+
+  ruby_build_file = node[:ruby_build][:filename]
+  ruby_build_version = File.basename(ruby_build_file, ".tar.gz")
+  ruby_build_dir = File.join(Chef::Config[:file_cache_path], ruby_build_version)
+
+  extract_command = "tar xzf #{ruby_build_file}"
+  Chef::Log.debug("Extracting ruby_build with command: #{extract_command}")
+  bash "extract_ruby_build" do
+    cwd Chef::Config[:file_cache_path]
+    code extract_command
+  end
+else
+  Chef::Log.error("Invalid install method for ruby-build: #{node[:ruby_build][:install_method]}")
+  raise "Invalid install method: #{node[:ruby_build][:install_method]}"
 end
 
 bash "install_ruby_build" do
-  cwd "#{Chef::Config[:file_cache_path]}/ruby-build"
+  cwd ruby_build_dir
   user "rbenv"
   group "rbenv"
   code <<-EOH