Class: Proteus::Templates::Partial

Inherits:
TemplateBinding show all
Includes:
Helpers::PathHelpers, Thor::Shell
Defined in:
lib/proteus/templates/partial.rb

Instance Method Summary collapse

Methods included from Helpers::PathHelpers

#config_dir, #config_path, #context_path, #context_temp_directory, #contexts_path, #environments_path, #module_config_path, #module_data_path, #module_hooks_path, #module_io_file, #module_path, #module_templates_path, #modules_path, #plan_file, #root_path, #state_file, #var_file

Methods inherited from TemplateBinding

#default_true, #get_binding, #render_defaults, #render_partial, #set

Methods included from Helpers::StringHelpers

#_, #camel_case

Constructor Details

#initialize(name:, context:, environment:, module_name:, data:, data_context: nil, force_rendering: true, deep_merge: false, terraform_variables:, scope_resources: nil) ⇒ Partial

Returns a new instance of Partial.



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# File 'lib/proteus/templates/partial.rb', line 8

def initialize(name:, context:, environment:, module_name:, data:, data_context: nil, force_rendering: true, deep_merge: false, terraform_variables:, scope_resources: nil)
  @name = name
  @context = context
  @environment = environment
  @module_name = module_name
  @data = data
  @data_context = data_context
  @force_rendering = force_rendering
  @deep_merge = deep_merge
  @terraform_variables = terraform_variables
  @scope_resources = scope_resources

  @defaults = {}
  set(@name.split('/').last, {})

  if data.dig('partials', @name)
    @partial_data_present = true
    @data['partials'][@name].delete('render')
    set(@name, @data['partials'][@name])
  else
    set(@name.split('/').last, ActiveSupport::HashWithIndifferentAccess.new)
  end

end

Instance Method Details

#partial_data? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/proteus/templates/partial.rb', line 90

def partial_data?
  @partial_data_present
end

#render ⇒ Object 



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# File 'lib/proteus/templates/partial.rb', line 33

def render
  if partial_data? || @force_rendering
    defaults_file = File.join(module_templates_path(@context, @module_name), 'defaults', "#{@name}.yaml")

    default_partial_path = File.join(module_templates_path(@context, @module_name), "_#{@name}.tf.erb")
    sub_directory_partial_path = File.join(module_templates_path(@context, @module_name), "#{@name}.tf.erb")

    if File.file?(default_partial_path)
      partial_file = default_partial_path
    else
      partial_file = sub_directory_partial_path
    end

    if File.file?(partial_file)
      partial_template = File.read(partial_file)

      if File.file?(defaults_file)
        @defaults = YAML.load_file(defaults_file, {}).with_indifferent_access

        partial_data = instance_variable_get("@#{@name}")

        if @deep_merge == false
          @defaults.each do |key, value|
            if !partial_data.key?(key)
              partial_data[key] = value
            end
          end
        elsif @deep_merge == :each
          merged_data = []

          partial_data.each do |item|
            merged_data << @defaults.deep_merge(item)
          end

          instance_variable_set("@#{@name.split('/').last}", merged_data)
        else
          instance_variable_set("@#{@name.split('/').last}", @defaults.deep_merge(partial_data))
        end

      end

      begin
        if @scope_resources
          return scope_resources(manifest: Erubis::Eruby.new(partial_template).result(get_binding), scope: @scope_resources)
        else
          return Erubis::Eruby.new(partial_template).result(get_binding)
        end
      rescue Exception => e
        say "Error in partial: #{partial_file}", :magenta
        e.backtrace.each { |line| say line, :magenta }
        say e.message, :magenta
        exit 1
      end
    end
  end
end

#scope_resources(manifest:, scope:) ⇒ Object 



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# File 'lib/proteus/templates/partial.rb', line 94

def scope_resources(manifest:, scope:)
  scoped = []
  manifest.each_line do |line|
    if line.include?('proteus:noscope')
      say "NOT SCOPING: #{line}", :green
      scoped << line.gsub(/( *)#( *)proteus:noscope/, '')
      next
    end

    if matches = line.match(/(?<rd>resource|data)( +)"(?<resource_type>[a-z0-9_]+)"( +)"(?<resource_name>[a-zA-Z0-9_\-]+)"( *)(\{)/)
      matches = matches.named_captures.with_indifferent_access
      say "MATCHED RESOURCE: #{matches[:rd].upcase}", :green
      scoped << "#{matches[:rd]} \"#{matches[:resource_type]}\" \"#{scope}_#{matches[:resource_name]}\" {"
      say "CHANGED TO:       #{scoped.last}", :green
    elsif matches = line.match(/^(?<pre>\s+)?(?<left>[a-z_]+)(?<eq>[= ]+)(?<lbracket>\[)?(?<lparen>"\${)?(?<funcbeg>([a-z]+\()*)?(?<data>data\.)?(?<resource_type>[a-z_0-9]+)\.(?<resource_name>[a-z_0-9-]+)\.(?<wildcard>\*.)?(?<resource_attribute>[a-z_]+)(?<rparen>}")?(?<post>.*)?/)

      matches = matches.named_captures.with_indifferent_access
      #if !matches[:data]
        say "MATCHED REFERENCE: #{line}", :green
        scoped << "#{matches[:pre]}#{matches[:left]}#{matches[:eq]}#{matches[:lbracket]}#{matches[:lparen]}#{matches[:funcbeg]}#{matches[:data]}#{matches[:resource_type]}.#{scope}_#{matches[:resource_name]}.#{matches[:wildcard]}#{matches[:resource_attribute]}#{matches[:rparen]}#{matches[:post]}"
        say "CHANGED TO: #{scoped.last}", :green
    elsif matches = line.match(/(?<resource>(?<data>data\.)?(?<resource_type>(?<provider>aws|helm|local)[a-z_0-9]+)\.(?<resource_name>[a-z\-_0-9]+)\.(?<resource_attribute>[a-z_]+))/)
      say "MATCHED RESOURCE REFERENCE: #{line}", :green
      scoped << line.gsub(matches[:resource], "#{matches[:data]}#{matches[:resource_type]}.#{scope}_#{matches[:resource_name]}.#{matches[:resource_attribute]}")
      say "CHANGED TO: #{scoped.last}", :green
    else
      scoped << line
    end
  end
  scoped.map!(&:chomp).join("\n")
end