Module: Jekyll::Esm

Defined in:
lib/jekyll-esm.rb,
lib/jekyll-esm/version.rb,
lib/jekyll-esm/managers/npm.rb,
lib/jekyll-esm/managers/yarn.rb,
lib/jekyll-esm/managers/bower.rb

Defined Under Namespace

Modules: Managers Classes: Error

Constant Summary collapse

VERSION = 
"0.3.1"
@@existing_esm_packages = 
[]
@@new_esm_packages = 
[]
@@esm_ids = 
[]

Class Method Summary collapse

Class Method Details

.apply(site) ⇒ Object 



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# File 'lib/jekyll-esm.rb', line 73

def self.apply(site)
  manager = select_manager(site.config.dig('esm', 'manager'))
  location = manager.location(site.config)
  dist = manager.dist(site.config)

  if @@existing_esm_packages.any?
    for_removal = @@existing_esm_packages - @@new_esm_packages.uniq

    # Remove any packages that are no longer referenced in an esm declaration
    if for_removal.any?
      packages = for_removal.join(' ')
      manager.remove(packages: packages, site: site)
    end
  end

  return unless Dir.exists?(File.join(site.source, location))

  FileUtils.rm_rf(File.join(site.dest, dist))
  FileUtils.cp_r(File.join(site.source, location), File.join(site.dest, dist))
  @@existing_esm_packages = @@new_esm_packages
  @@new_esm_packages = []
  @@esm_ids = []
end

.process(page) ⇒ Object 



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# File 'lib/jekyll-esm.rb', line 21

def self.process(page)
  site = page.site
  manager = select_manager(site.config.dig('esm', 'manager'))
  location = manager.location(site.config)

  doc = Nokogiri::HTML(page.output)

  import_maps = doc.search('script[type=importmap]')

  import_maps.each do |value|
    esm_id = value.attributes["data-esm-id"]&.value
    # declare a data-esm-id so that jekyll will only process an esm declaration once
    next if @@esm_ids.include?(esm_id)
    @@esm_ids << esm_id if esm_id

    importmap = JSON.parse(value.children[0].content)
    imports = importmap["imports"]
    imports.keys.each do |import_key|
      # ignore urls
      next if import_key =~ /https?:\/\/[\S]+/
      next if imports[import_key] =~ /https?:\/\/[\S]+/
      # ignore relative paths
      next if import_key =~ /(^\.+\/)+/
      # ignore absolute paths
      next if import_key =~ /^\/[\S]+/

      # ignore namespaces but only if it is not scoped
      if import_key =~ /^@[\S]+/
        import = import_key.split('/')[0..1].join('/')
      else
        import = import_key.split('/').first
      end

      pkg_path = File.join(site.source, location, import)

      # don't repeatedly attempt to install a package
      next if Dir.exists?(pkg_path) && @@new_esm_packages.include?(import)

      @@new_esm_packages << import

      manager.add(package: import, site: site)

    end
  end
end

.select_manager(name) ⇒ Object 



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# File 'lib/jekyll-esm.rb', line 67

def self.select_manager(name)
  return Managers::Npm if name == 'npm'
  return Managers::Bower if name == 'bower'
  return Managers::Yarn
end