add haml-lint

.haml-lint.yml

+linters:
+  LineLength:
+    max: 120
+  SpaceInsideHashAttributes:
+    style: no_space

Gemfile

@@ -236,9 +236,11 @@ group :development do
   # Linters
   gem "jshintrb",       "0.3.0"
   gem "rubocop",        "0.32.1"
+  gem "haml_lint",      "0.13.0"
   gem "pronto",         "0.4.2"
   gem "pronto-jshint",  "0.4.2"
   gem "pronto-rubocop", "0.4.4"
+  gem "pronto-haml",    "0.4.3"
 
   # Preloading environment
 

Gemfile.lock

@@ -347,6 +347,10 @@ GEM
       rubocop (~> 0.20)
     haml (4.0.6)
       tilt
+    haml_lint (0.13.0)
+      haml (~> 4.0)
+      rubocop (>= 0.25.0)
+      sysexits (~> 1.1)
     handlebars_assets (0.20.2)
       execjs (~> 2.0)
       multi_json (~> 1.0)
@@ -492,6 +496,9 @@ GEM
       octokit (~> 3.8.0)
       rugged (~> 0.22.0)
       thor (~> 0.19.0)
+    pronto-haml (0.4.3)
+      haml_lint (~> 0.13.0)
+      pronto (~> 0.4.0)
     pronto-jshint (0.4.2)
       jshintrb (~> 0.3.0)
       pronto (~> 0.4.0)
@@ -720,6 +727,7 @@ GEM
       activesupport (>= 3.0)
       sprockets (>= 2.8, < 4.0)
     state_machine (1.2.0)
+    sysexits (1.2.0)
     systemu (2.6.5)
     terminal-table (1.5.2)
     test_after_commit (0.4.1)
@@ -811,6 +819,7 @@ DEPENDENCIES
   guard-rspec (= 4.6.3)
   guard-rubocop (= 1.2.0)
   haml (= 4.0.6)
+  haml_lint (= 0.13.0)
   handlebars_assets (= 0.20.2)
   http_accept_language (= 2.0.5)
   i18n-inflector-rails (= 1.0.7)
@@ -839,6 +848,7 @@ DEPENDENCIES
   open_graph_reader (= 0.6.1)
   pg (= 0.18.2)
   pronto (= 0.4.2)
+  pronto-haml (= 0.4.3)
   pronto-jshint (= 0.4.2)
   pronto-rubocop (= 0.4.4)
   pry

bin/haml-lint

+#!/usr/bin/env ruby
+#
+# This file was generated by Bundler.
+#
+# The application 'haml-lint' is installed as part of a gem, and
+# this file is here to facilitate running it.
+#
+
+require 'pathname'
+ENV['BUNDLE_GEMFILE'] ||= File.expand_path("../../Gemfile",
+  Pathname.new(__FILE__).realpath)
+
+require 'rubygems'
+require 'bundler/setup'
+
+load Gem.bin_path('haml_lint', 'haml-lint')