Add M1 pipeline on Buildkite

.buildkite/pipeline.yml

@@ -0,0 +1,14 @@
+steps:
+  - label: ":hammer: Specs"
+    agents:
+      m1: true
+    commands:
+      - echo "--- Initialize git"
+      - git submodule update --init
+      - ./.github/scripts/setup_test_repo.sh
+      - echo "--- Bundler"
+      - gem install bundler:1.17.3
+      - bundle config path vendor/bundle
+      - bundle install --jobs 4 --retry 3 --without debugging documentation
+      - echo "+++ Run Specs"
+      - bundle exec rake spec

.github/scripts/setup_test_repo.sh

@@ -1,4 +1,5 @@
 #!/bin/sh
 cd spec/fixtures/spec-repos/test_repo
+rm -rf .git || true
 git init
 git remote add origin https://bitbucket.com/test/test_repo.git

Rakefile

@@ -50,11 +50,11 @@ begin
     end
 
     task :all do
-      title 'Running Unit Tests'
-      sh "bundle exec bacon #{specs('**')}"
-
       title 'Checking code style...'
       Rake::Task['rubocop'].invoke if RUBY_VERSION >= '1.9.3'
+
+      title 'Running Unit Tests'
+      sh "bundle exec bacon #{specs('**')}"
     end
   end