Add site publishing on release

Author: realityforge

.travis.yml

@@ -5,7 +5,7 @@ sudo: false
 rvm:
 - 2.3.1
 before_install:
-- openssl aes-256-cbc -K $encrypted_b94deb0a83fd_key -iv $encrypted_b94deb0a83fd_iv
+- openssl aes-256-cbc -K $encrypted_c67e65222272_key -iv $encrypted_c67e65222272_iv
   -in etc/secrets -out ../secrets.tar -d
 - "(cd ../ && tar xvf secrets.tar)"
 - chmod 600 ../release.asc
@@ -14,7 +14,7 @@ install:
 - rvm use 2.3.1
 - gem install bundler
 - bundle install
-script: buildr package mcrt:publish_if_tagged
+script: buildr package mcrt:publish_if_tagged site:publish_if_tagged
 git:
   depth: false
 env:

etc/secrets

@@ -0,0 +1,81 @@
+require File.expand_path(File.dirname(__FILE__) + '/util')
+
+SITE_DIR = "#{WORKSPACE_DIR}/target/doc"
+
+desc 'Publish the website'
+task 'site:publish' => 'doc' do
+  origin_url = 'https://github.com/react4j/react4j.github.io.git'
+
+  travis_build_number = ENV['TRAVIS_BUILD_NUMBER']
+  if travis_build_number
+    origin_url = origin_url.gsub('https://github.com/', '[email protected]:')
+  end
+
+  component_name = Buildr.projects[0].name.gsub('react4j-', '')
+
+  local_dir = "#{WORKSPACE_DIR}/target/remote_site"
+  rm_rf local_dir
+
+  sh "git clone -b master --depth 1 #{origin_url} #{local_dir}"
+
+  # This is the list of directories controlled by other processes that should be left alone
+  excludes = %w()
+
+  in_dir(local_dir) do
+    message =
+      "Publishing docs for component #{component_name}#{travis_build_number.nil? ? '' : " - Travis build: #{travis_build_number}"}"
+
+    rm_rf "#{local_dir}/#{component_name}"
+    cp_r SITE_DIR, "#{local_dir}/#{component_name}"
+    sh 'git add . -f'
+    puts `git commit -m "#{message}"`
+    if 0 == $?.exitstatus
+      sh 'git push origin master'
+    end
+  end
+end
+
+desc 'Publish website iff current HEAD is a tag on blessed branch'
+task 'site:publish_if_tagged' do
+  candidate_branches = %w(master)
+  tag = get_head_tag_if_any
+  if tag.nil?
+    puts 'Current HEAD is not a tag. Skipping site:publish step.'
+  else
+    puts "Current HEAD is a tag: #{tag}"
+    if is_tag_on_candidate_branches?(tag, candidate_branches)
+      task('site:publish').invoke
+    end
+  end
+end
+
+def get_head_tag_if_any
+  version = `git describe --exact-match --tags 2>&1`
+  if 0 == $?.exitstatus && version =~ /^v[0-9]/ && (ENV['TRAVIS_BUILD_ID'].nil? || ENV['TRAVIS_TAG'].to_s != '')
+    version.strip
+  else
+    nil
+  end
+end
+
+def is_tag_on_branch?(tag, branch)
+  output = `git tag --merged #{branch} 2>&1`
+  tags = output.split
+  tags.include?(tag)
+end
+
+def is_tag_on_candidate_branches?(tag, branches)
+  sh 'git fetch origin'
+  branches.each do |branch|
+    if is_tag_on_branch?(tag, branch)
+      puts "Tag #{tag} is on branch: #{branch}"
+      return true
+    elsif is_tag_on_branch?(tag, "origin/#{branch}")
+      puts "Tag #{tag} is on branch: origin/#{branch}"
+      return true
+    else
+      puts "Tag #{tag} is not on branches: #{branch} or origin/#{branch}"
+    end
+  end
+  false
+end