Class: Middleman::Extensions::ExternalPipeline
- Inherits:
-
Middleman::Extension
- Object
- Middleman::Extension
- Middleman::Extensions::ExternalPipeline
- Defined in:
- lib/middleman-core/extensions/external_pipeline.rb
Constant Summary
Constants included from Contracts
Instance Attribute Summary
Attributes inherited from Middleman::Extension
Instance Method Summary collapse
-
#initialize(app, config = {}, &block) ⇒ ExternalPipeline
constructor
A new instance of ExternalPipeline.
- #reload! ⇒ Object
- #watch_command!(async) ⇒ Object
Methods inherited from Middleman::Extension
activated_extension, #add_exposed_to_context, #after_build, #after_configuration, #after_extension_activated, after_extension_activated, #before_build, #before_configuration, clear_after_extension_callbacks, config, define_setting, expose_to_application, expose_to_config, expose_to_template, global_config, helpers, #manipulate_resource_list, option, #ready, resources
Methods included from Contracts
Constructor Details
#initialize(app, config = {}, &block) ⇒ ExternalPipeline
Returns a new instance of ExternalPipeline.
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# File 'lib/middleman-core/extensions/external_pipeline.rb', line 11 def initialize(app, config={}, &block) super return if app.mode?(:config) require 'servolux' require 'thread' require 'fileutils' source_path = File.([:source], app.root) # Make sure it exists, or `listen` will explode. ::FileUtils.mkdir_p(source_path) @watcher = app.files.watch :source, path: source_path, latency: [:latency], frontmatter: false @current_thread = nil app.reload(&method(:reload!)) logger.info "== Executing: `#{[:command]}`" if app.build? || [:disable_background_execution] watch_command!(false) @watcher.poll_once! else watch_command!(true) end end |
Instance Method Details
#reload! ⇒ Object
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# File 'lib/middleman-core/extensions/external_pipeline.rb', line 44 def reload! if @current_thread logger.info "== Stopping: `#{[:command]}`" @current_thread.stop @current_thread = nil end end |
#watch_command!(async) ⇒ Object
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# File 'lib/middleman-core/extensions/external_pipeline.rb', line 53 def watch_command!(async) @current_thread = ::Servolux::Child.new( command: [:command], suspend: 2 ) @current_thread.start watch_thread = Thread.new do while buf = @current_thread.io.gets without_newline = buf.sub(/\n$/, '') logger.info "== External: #{without_newline}" unless without_newline.empty? end @current_thread.wait if ![:ignore_exit_code] && !@current_thread.exitstatus.nil? && @current_thread.exitstatus != 0 logger.error '== External: Command failed with non-zero exit status' exit(1) end end watch_thread.join unless async rescue ::Errno::ENOENT => e logger.error "== External: Command failed with message: #{e.}" exit(1) end |