Merge pull request #4 from zgalor/add_travis

Add travis, code coverage, rubocop

Author: zgalor

.codecov.yml

@@ -0,0 +1,3 @@
+codecov:
+  branch: master
+

.coveralls.yml

@@ -0,0 +1,2 @@
+service_name: travis-ci
+

.rubocop.yml

@@ -0,0 +1,27 @@
+AllCops:
+    Exclude:
+        - lib/prometheus/api_client/version.rb
+
+AlignHash:
+    EnforcedHashRocketStyle: table
+
+Style/TrailingCommaInArguments:
+    EnforcedStyleForMultiline: comma
+
+Style/TrailingCommaInLiteral:
+    EnforcedStyleForMultiline: comma
+
+Metrics/AbcSize:
+    Max: 18
+
+Metrics/MethodLength:
+    Max: 23
+
+Metrics/BlockLength:
+    Exclude:
+        - 'spec/**/*.rb'
+
+Metrics/LineLength:
+    Exclude:
+        - 'spec/**/*.rb'
+

.travis.yml

@@ -0,0 +1,10 @@
+sudo: false
+language: ruby
+# Needed for rainbow 2.2.1 / rubygems issues.
+before_install:
+  - |
+    if [[ "$(ruby -e 'puts RUBY_VERSION')" != 1.* ]]; then gem update --system; fi
+rvm:
+  - 2.3.3
+  - 2.4.0
+

Gemfile

@@ -9,7 +9,9 @@ end
 gem 'faraday'
 
 group :test do
+  gem 'coveralls'
   gem 'json', '< 2.0' if ruby_version?('< 2.0')
   gem 'rake'
   gem 'rspec'
+  gem 'rubocop', '< 0.42'
 end