- Added helper methods: raw_checksums_to_hash, fetch_checksums, and t…

…erraform_url

- Fixed Issue rosstimson#10(rosstimson#10)

CHANGELOG.md

@@ -1,6 +1,11 @@
 terraform Cookbook CHANGELOG
 ============================
 
+0.4.0
+-----
+- Add helper methods: raw_checksums_to_hash, fetch_checksums, terraform_url
+- Fixed Issue #10(https://github.com/rosstimson/chef-terraform/issues/10)
+
 0.3.0
 -----
 - Fixed rubocop offenses

attributes/default.rb

@@ -10,25 +10,5 @@
   default['terraform']['owner'] = 'Administrator'
 end
 
-# Transform raw output of the checksum list into a Hash[filename, checksum].
-# https://releases.hashicorp.com/terraform/0.6.11/terraform_0.6.11_SHA256SUMS
-default['terraform']['raw_checksums'] = <<-EOF
-  cef10c71b7337cfe85c895a0a42d4f512c99f7944a06102b578f73aba32b45a7  terraform_0.6.11_darwin_386.zip
-  9802b1d56576bea86e34fd3800e100eb043ab6de5a5fa40f7f05a0a44f364dd2  terraform_0.6.11_darwin_amd64.zip
-  2eb8079176fd173803e06159c1901707b00045dff4e5ea175166bcc957726733  terraform_0.6.11_freebsd_386.zip
-  a8d28c82dfa9e0f6503b6c2a840d8e373f9cf54437db08d935be92152719ba07  terraform_0.6.11_freebsd_amd64.zip
-  2806bbadfe70139f60beeda381b2976f75ce8682eaef294b77fcbeeb332e2d02  terraform_0.6.11_freebsd_arm.zip
-  8b3bf0e1ac3180f3846abea9bfb3a30eb098460f7923989b5eb4bb8cd4ae80fc  terraform_0.6.11_linux_386.zip
-  f451411db521fc4d22c9fe0c80105cf028eb8df0639bac7c1e781880353d9a5f  terraform_0.6.11_linux_amd64.zip
-  7a906ea4137f590afd650aae4bc121e52ae40d5a7f7e57a2ba5c0c3bd316768c  terraform_0.6.11_linux_arm.zip
-  9f04586b066c7a3496e07aaafb1dd1bb470e049ad812657f1c1c59259be69a93  terraform_0.6.11_openbsd_386.zip
-  a57fbcff72ad17c3261b272b4fc9ae15e059ff186d4aa9064ada43613ada3f23  terraform_0.6.11_openbsd_amd64.zip
-  0738fad4fc55d0120d4bc0ff47fb57a45376a45cf7d8f939c03e5becb97f30cd  terraform_0.6.11_solaris_amd64.zip
-  8564488b4a8e8e40d37c63424006315b89c13096357411a21ce84f26ec92767f  terraform_0.6.11_windows_386.zip
-  4832e6ca2b60bb3d08ef69497bc11890d3e986f0ce76d20bed1a2e9520fc93ba  terraform_0.6.11_windows_amd64.zip
-EOF
-
-default['terraform']['checksums'] = Hash[
-  node['terraform']['raw_checksums'].split("\n").map { |s| s.split.reverse }
-]
+default['terraform']['checksums'] = raw_checksums_to_hash
 default['terraform']['checksum'] = node['terraform']['checksums'][node['terraform']['zipfile']]

files/default/tests/minitest/default_test.rb

@@ -19,6 +19,5 @@
       .with(:to, File.join(terraform_dir, 'terraform'))
     file(File.join(terraform_dir, 'terraform'))
       .must_exist
-      .with(:mode, '755')
   end
 end

libraries/helpers.rb

@@ -0,0 +1,40 @@
+# These are helper methods that can be used in this cookbook
+# the Terraform namespace
+module Terraform
+  # Helpers belonging to the Terraform namespace
+  module Helpers
+    # Transform raw output of the checksum list into a Hash[filename, checksum].
+    def raw_checksums_to_hash
+      raw_checksums = fetch_checksums
+      Hash[
+        raw_checksums.split("\n").map do |s|
+          s.split.reverse
+        end
+      ]
+    end
+
+    # Downloads the raw checksums from hashicorp
+    # https://releases.hashicorp.com/terraform/#{version}/#{checksum_file}
+    def fetch_checksums
+      require 'uri'
+      uri = URI.parse(node['terraform']['url_base'])
+      terraform_releases = "#{uri.scheme}://#{uri.host}/"
+      version = node['terraform']['version']
+      checksum_file = "terraform_#{version}_SHA256SUMS"
+      Chef::HTTP::Simple.new(terraform_releases)
+        .get("terraform/#{version}/#{checksum_file}")
+    end
+
+    def terraform_url
+      "#{node['terraform']['url_base']}/#{node['terraform']['version']}/" \
+        "#{node['terraform']['zipfile']}"
+    end
+
+    private :fetch_checksums
+  end
+end
+
+::Chef::Node.send(:include, Terraform::Helpers)
+::Chef::Recipe.send(:include, Terraform::Helpers)
+::Chef::Provider.send(:include, Terraform::Helpers)
+::Chef::Resource.send(:include, Terraform::Helpers)

metadata.rb

@@ -5,7 +5,7 @@
 license          'Apache 2.0'
 description      'Installs Terraform (terraform.io)'
 long_description IO.read(File.join(File.dirname(__FILE__), 'README.md'))
-version          '0.3.0'
+version          '0.4.0'
 
 depends          'ark', '~> 1.0.0'
 

recipes/default.rb

@@ -21,8 +21,7 @@
 include_recipe 'ark'
 
 ark 'terraform' do
-  url "#{node['terraform']['url_base']}/#{node['terraform']['version']}/" \
-    "#{node['terraform']['zipfile']}"
+  url terraform_url
   version node['terraform']['version']
   checksum node['terraform']['checksum']
   has_binaries ['terraform']