Rakefile

#!/usr/bin/env ruby
# jekyll Rakefile
# Config variables above those defined in _config.yml

# post_ext = '.md'
# post_dir = '_posts/'
# load from configuration file if present
load '_rake-configuration.rb' if File.exist?('_rake-configuration.rb')
load '_rake_configuration.rb' if File.exist?('_rake_configuration.rb')
#
puts 'Starting main engines!'

# post_ext ||= '.md'
# post_dir ||= '_posts/'
# git_check ||= true
# git_autopush ||= false

desc 'Test site using HTML::Proofer'
task :proof_sitedir do
  jekyll('build')
  HTMLProofer.check_directory(
    './_site/',
    allow_hash_href: true,
    assume_extension: true,
    url_ignore: [
      'http://localhost:4000/feed.xml',
      'http://validator.w3.org/check?uri=referer',
      'https://validator.w3.org/check?uri=referer',
      'https://blog.jessfraz.com/post/spontaneous-combustion/',
      'https://lmgtfy.com/?q=Checking+the+proxy%2C+firewall%2C+and+DNS+configuration',
      'https://lmgtfy.com/?q=Running+Network+Diagnostics',
      'https://t.co/Gk4MxPlhjb', # this will be fixed after publishing
      'https://t.co/Qg1iGzrZyz' # linkedin does not like htmlproofer
    ]
  ).run
  puts 'YOLO that shit straight to prod, fam!'
end

desc 'Test site'
task test: [:proof_sitedir] do
  cleanup
end

#
# and the rest of the tasks
#
desc 'Clean up generated site'
task :clean do
  cleanup
end

desc 'Preview on local machine'
task preview: :clean do
  jekyll('serve --watch')
end
task serve: :preview

desc 'Build for deployment'
task build: :clean do
  if rake_running
    puts "\n\n****WARNING: An instance of rake is running.\n"
    puts "****WARNING: Building while running other tasks (preview!)\n"
    puts "             might create a site with broken links.\n\n"
    puts 'Are you certain you want to continue? [Y|n]'

    ans = STDIN.gets.chomp
    exit if ans != 'Y'
  end
  jekyll('build --config _config.yml')
end

desc 'Show the file changed since last deploy to stdout'
task :list_changes do |_t|
  content = list_file_changed
  puts content
end

def list_file_changed
  content = "Files changed since last deploy:\n"
  IO.popen('find * -newer _last_deploy.txt -type f') do |io|
    while (line = io.gets)
      filename = line.chomp
      if user_visible(filename)
        content << "* \"#{filename}\":{{site.url}}/#{file_change_ext(filename, '.html')}\n"
      end
    end
  end
  content
end

# this is the list of files we do not want to show in changed files
EXCLUSION_LIST = [/.*~/,
                  /_.*/,
                  'javascripts?',
                  'js',
                  /stylesheets?/,
                  'css',
                  'Rakefile',
                  'Gemfile',
                  /s[ca]ss/,
                  /.*\.css/,
                  /.*.js/,
                  'bower_components',
                  'config.rb'].map!(&:freeze).freeze

# return true if filename is "visible" to the user (e.g., it is not javascript, css, ...)
def user_visible(filename)
  exclusion_list = Regexp.union(EXCLUSION_LIST)
  !filename.match(exclusion_list)
end

def file_change_ext(filename, newext)
  if File.extname(filename) == '.textile' || File.extname(filename) == '.md'
    filename.sub(File.extname(filename), newext)
  else
    filename
  end
end

#
# General support functions
#

# remove generated site
def cleanup
  jekyll('clean')
end

# launch jekyll
def jekyll(directives = '')
  system 'bundle exec jekyll ' + directives
end

# check if there is another rake task running (in addition to this one!)
def rake_running
  `pgrep rake | wc -l`.to_i > 1
end

def git_local_diffs
  `git diff --name-only` != ''
end

def git_remote_diffs(branch)
  `git fetch`
  `git rev-parse #{branch}` != `git rev-parse origin/#{branch}`
end

def git_repo?
  `git status` != ''
end

def git_requires_attention(branch)
  git_check && git_repo? && git_remote_diffs(branch)
end

#
# default task stuff
#
require 'rake'
require 'html-proofer'
require 'rubocop/rake_task'

RuboCop::RakeTask.new

desc 'Set default tasks'
task default: :proof_sitedir