More refactoring

- Codeclimate and related tooling yml/configs. Setup instructions
  [here](https://github.com/codeclimate/codeclimate). Details on
simplecov [here](https://github.com/colszowka/simplecov).
- cleanup dotenv usage
  - `.env` -> `.env.sample`, `.env.test`. This allow better seperate of
    test environment specifics from the actual code base, and can let us
cook up a more reasonable sample `.env` file for either
templating/getting started examples.
- cleaned up pry usage: should only be required if the RACK_ENV =
  'development'
- Freed up the `Terraform` class/module namespace for usage later.
- Rake task cleanup
  - Prometheus specific testing is now not exported as part of `spec_tasks`
  - Removed the extra `*.rake` redirection to define the exported rake
    tasks more programatically without excessive nesting.
- Gemspec cleanup: only export gem necessary files.
- Feature: stdlib Logger is now used for logging to STDOUT.
- Terraform reworking: Logic is now split from the basic CLI command
  wrapping.
- Tools moved to `state_stores` for better organizational grouping (and
  to prepare from namespacing later)
- Handling terraform `-var` for both post and pre 0.7.0

.codeclimate.yml

@@ -0,0 +1,28 @@
+---
+engines:
+  bundler-audit:
+    enabled: true
+  csslint:
+    enabled: false
+  duplication:
+    enabled: true
+    config:
+      languages:
+        ruby:
+          mass_threshold: 30
+  eslint:
+    enabled: false
+  fixme:
+    enabled: true
+  reek:
+    enabled: true
+  rubocop:
+    enabled: true
+ratings:
+  paths:
+  - Gemfile.lock
+  - "**.inc"
+  - "**.module"
+  - "**.rb"
+exclude_paths:
+- spec/

.env.sample

@@ -1,6 +1,3 @@
-PROMETHEUS_CONFIG = "spec/prometheus_spec.yaml"
-PROMETHEUS_TERRAFORM_DIR = "spec/environment"
-PROMETHEUS_PACKER_DIR = "spec/environment"
-TERRAFORM_STUB = true
+PROMETHEUS_WORKSPACE = $PWD
 AWS_REGION = "us-west-2"
-ATLAS_TOKEN = "<insert token here>"
+ATLAS_TOKEN = "<insert_token_here>"

.env.test

@@ -0,0 +1,6 @@
+PROMETHEUS_CONFIG = "spec/fixtures/prometheus_spec.yaml"
+PROMETHEUS_TERRAFORM_DIR = "spec/fixtures/terraform"
+PROMETHEUS_PACKER_DIR = "spec/fixtures/packer"
+AWS_REGION = "us-west-2"
+ATLAS_TOKEN = "<insert_token_here>"
+RAKE_ENV = "test"

.gitignore

@@ -2,3 +2,5 @@ spec/reports/*
 **/terraform.tfstate*
 data/dev/*
 .env
+coverage/*
+.DS_Store

.reek

@@ -0,0 +1,14 @@
+---
+TooManyStatements:
+  enabled: true
+  exclude:
+  - initialize
+  max_statements: 7
+IrresponsibleModule:
+  enabled: false
+DuplicateMethodCall:
+  max_calls: 3
+NestedIterators:
+  max_allowed_nesting: 2
+UtilityFunction:
+  public_methods_only: true