Travis test (#73)

Add Travis-CI configuration

.gitignore

@@ -1 +1,2 @@
 node_modules/
+Gemfile.lock

.travis.yml

@@ -0,0 +1,46 @@
+# Project specific configuration
+language: ruby
+
+rvm:
+  - 2.1.8
+  - 2.2.4
+  - 2.3.0
+
+env:
+  global:
+    # For regular user installations this will be taken care of by package-deps
+    # However, package activation doesn't wait on the Promise that returns so
+    # we are just forcing it's installation here.
+    - APM_TEST_PACKAGES="language-haml"
+
+  matrix:
+    - ATOM_CHANNEL=stable
+    - ATOM_CHANNEL=beta
+
+os:
+  - linux
+
+# Generic configuration
+notifications:
+  email:
+    on_success: never
+    on_failure: change
+
+sudo: false
+
+addons:
+  apt:
+    packages:
+    - build-essential
+    - git
+    - libgnome-keyring-dev
+    - fakeroot
+
+git:
+  depth: 10
+
+branches:
+  only:
+    - master
+
+script: 'curl -s https://raw.githubusercontent.com/atom/ci/master/build-package.sh | sh'

Gemfile

@@ -0,0 +1,3 @@
+source 'https://rubygems.org'
+
+gem 'haml_lint'

README.md

@@ -1,6 +1,8 @@
 linter-haml
 =========================
 
+[![Build Status](https://travis-ci.org/AtomLinter/linter-haml.svg?branch=master)](https://travis-ci.org/AtomLinter/linter-haml)
+
 This linter plugin for [Linter](https://github.com/AtomLinter/Linter) provides an interface to [haml-lint](https://github.com/causes/haml-lint). It will be used with files that have the "HAML" syntax.
 
 ## Installation

lib/linter.coffee

@@ -13,7 +13,7 @@ class Linter
   lintOnFly: true
 
   constructor: ->
-    require('atom-package-deps').install()
+    require('atom-package-deps').install('linter-haml')
     @subscriptions = new CompositeDisposable
     @subscriptions.add atom.config.observe 'linter-haml.copyRubocopYml', (copyRubocopYml) =>
       @copyRubocopYml = copyRubocopYml
@@ -89,7 +89,7 @@ class Linter
       .then ->
         resolve results
       .catch (error) ->
-        console.error 'linter-haml error', error
+        console.error error
         resolve results
 
   lintFile: (textEditor, tempFile, hamlLintYmlPath) ->
@@ -98,7 +98,7 @@ class Linter
       textBuffer = textEditor.getBuffer()
 
       args = []
-      if hamlLintYmlPath?
+      if hamlLintYmlPath? && hamlLintYmlPath != ''
         args.push '--config'
         args.push hamlLintYmlPath
       args.push tempFile

lib/main.coffee

@@ -16,6 +16,7 @@ module.exports =
       type: 'string'
 
     globalHamlLintYmlFile:
+      default: ''
       description: 'Full path to a global Haml lint file, if no other is found'
       type: 'string'