Update circle.yml for CircleCI 2.0 (#20)

* Update circle.yml for CircleCI 2.0

* Upgrade ruby to 2.5.0

* Add rspec_junit_formatter for Circle

.ruby-version

@@ -1 +1 @@
-2.1.2
+2.5.0

Gemfile

@@ -1,5 +1,8 @@
 source "https://rubygems.org/"
 
+# Read ruby version from .ruby-version file
+ruby File.read('.ruby-version', mode: 'rb').chomp
+
 gem 'sinatra', '1.4.5'
 gem 'tilt', '1.4.1'
 gem 'rack', '~>1.5.4'
@@ -11,6 +14,8 @@ gem 'thin', '~>1.7.0'
 group :development, :test do
   gem 'rspec', '3.0.0'
   gem 'rspec-core', '3.0.1'
+  # Needed by CircleCI for test results
+  gem 'rspec_junit_formatter'
   gem 'rack-test'
   gem 'byebug'
 end

Gemfile.lock

@@ -51,3 +51,9 @@ DEPENDENCIES
   sinatra (= 1.4.5)
   thin (~> 1.7.0)
   tilt (= 1.4.1)
+
+RUBY VERSION
+   ruby 2.5.0p0
+
+BUNDLED WITH
+   1.16.2

circle.yml

@@ -1,5 +1,58 @@
-deployment:
-  production:
-    branch: master
-    heroku:
-      appname: getto24-sinatra
+# Ruby CircleCI 2.0 configuration file
+#
+# Check https://circleci.com/docs/2.0/language-ruby/ for more details
+#
+version: 2
+jobs:
+  build:
+    docker:
+      # specify the version you desire here
+       - image: circleci/ruby:2.5.0
+
+      # Specify service dependencies here if necessary
+      # CircleCI maintains a library of pre-built images
+      # documented at https://circleci.com/docs/2.0/circleci-images/
+      # - image: circleci/postgres:9.4
+
+    working_directory: ~/repo
+
+    steps:
+      - checkout
+
+      # Download and cache dependencies
+      # - restore_cache:
+      #     keys:
+      #     - v1-dependencies-{{ checksum "Gemfile.lock" }}
+      #     # fallback to using the latest cache if no exact match is found
+      #     - v1-dependencies-
+
+      - run:
+          name: install dependencies
+          command: |
+            gem install bundler
+            bundle install --jobs=4 --retry=3 --path vendor/bundle
+
+      # - save_cache:
+      #     paths:
+      #       - ./vendor/bundle
+      #     key: v1-dependencies-{{ checksum "Gemfile.lock" }}
+
+      # run tests!
+      - run:
+          name: run tests
+          command: |
+            mkdir /tmp/test-results
+            TEST_FILES="$(circleci tests glob "spec/**/*_spec.rb" | circleci tests split --split-by=timings)"
+
+            bundle exec rspec --format progress \
+                            --format RspecJunitFormatter \
+                            --out /tmp/test-results/rspec.xml \
+                            --format progress \
+                            $TEST_FILES
+
+      # collect reports
+      - store_test_results:
+          path: /tmp/test-results
+      - store_artifacts:
+          path: /tmp/test-results
+          destination: test-results