Set up JenkinsFile and Rakefile

Jenkinsfile

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+node("${env.NODE}") {
+  currentBuild.result = "SUCCESS"
+
+  try {
+    stage('Clean up') {
+      deleteDir()
+    }
+
+    stage('Checkout') {
+      checkout scm
+    }
+
+    stage('D/L dependencies') {
+      sh 'gem install bundler'
+      sh 'bundle'
+    }
+
+    stage('Test') {
+      sh 'rake test:production'
+    }
+
+    stage('Build production') {
+      sh 'rake build:production'
+    }
+
+    stage('Deploy') {
+      def files = findFiles(glob: '_site/**/*')
+      files.each { 
+          def file = it
+          def dst = file.path.replace('_site/', '')
+          println "file:  ${file}"
+          println "name:  ${file.name}"
+          println "path:  ${file.path}"
+          println "dst:  ${dst}"
+
+          withAWS(region:"${env.REGION}",credentials:"${env.CREDENTIAL}") {
+            s3Upload(
+              bucket: "${env.HOST}",
+              file: "${file.path}",
+              path: "${dst}", 
+            )
+          }
+      }
+    }
+
+    stage('Invalidate Cloudfront') {
+      withAWS(region:"${env.REGION}",credentials:"${env.CREDENTIAL}") {
+        cfInvalidate(distribution: "${env.CF_DIST_ID}", paths: ['/*'])
+      }
+    }
+  } catch (err) {
+    currentBuild.result = 'FAILURE'
+    throw err
+  }
+}

Rakefile

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+require 'html-proofer'
+
+$sourceDir = "./source"
+$outputDir = "./output"
+$testOpts = {
+  # Ignore errors "linking to internal hash # that does not exist"
+  :url_ignore => ["#"],
+  # Allow empty alt tags (e.g. alt="") as these represent presentational images
+  :empty_alt_ignore => true
+}
+
+hostname = ENV['SITE_HOSTNAME']
+region = ENV['SITE_REGION']
+
+task :default => ["serve:development"]
+
+desc "cleans the output directory"
+task :clean do
+  sh "jekyll clean"
+end
+
+namespace :deploy do
+
+  desc "upload to S3"
+  task :s3upload => [] do
+    bucket = `aws s3api list-buckets --query "Buckets[?contains(Name, '#{hostname}')] | [0].Name" | jq -r '.'`
+
+    p "Uploading to #{bucket} in #{region}"
+
+    htmls = File.join("**", "*.html")
+
+    # Remove extension from HTML files
+    Dir.glob(htmls, base: "_site") do |filename|
+      # Skip index.html
+      next if filename == "index.html"
+
+      filename_noext = filename.sub('.html', '')
+      p "Will move #{filename} to #{filename_noext}"
+      FileUtils.mv(filename, filename_noext)
+    end
+
+    p "Will upload non-HTML files"
+    sh %{
+      aws s3 sync _site/ s3://#{bucket} --region #{region} --delete \
+      --size-only --exclude "*" --include "*.*"
+    }
+
+    p "Will upload HTML files"
+    sh %{
+      aws s3 sync _site/ s3://#{bucket} --region #{region} --delete \
+      --content-type "text/html; charset=utf-8" --exclude "*.*"
+    }
+  end
+end
+
+namespace :build do
+
+  desc "build development site"
+  task :development => [:clean] do
+    sh "jekyll build --drafts"
+  end
+
+  desc "build production site"
+  task :production => [:clean] do
+    sh "JEKYLL_ENV=production jekyll build --config=_config.yml"
+  end
+end
+
+namespace :serve do
+
+  desc "serve development site"
+  task :development => [:clean] do
+    sh "jekyll serve --drafts"
+  end
+
+  desc "serve production site"
+  task :production => [:clean] do
+    sh "JEKYLL_ENV=production jekyll serve --config=_config.yml"
+  end
+end
+
+namespace :test do
+
+  desc "test production build"
+  task :production => ["build:production"] do
+    HTMLProofer.check_directory($outputDir, $testOpts).run
+  end
+end