filters/: add nanoc-webpack.rb

Replace lib/filters/webpack.rb with
[nanoc-webpack.rb](https://github.com/0x1eef/nanoc-webpack.rb)

Gemfile

@@ -4,6 +4,7 @@ source "https://rubygems.org"
 gem "nanoc", "~> 4.12"
 gem "nanoc-live", "~> 1.0"
 gem "nanoc-gunzip.rb", "~> 0.1"
+gem "nanoc-webpack.rb", "~> 0.1", git: "https://github.com/0x1eef/nanoc-webpack.rb"
 gem "rainpress", "~> 1.0"
 gem "sass"
 gem "standardrb"

Gemfile.lock

@@ -1,3 +1,9 @@
+GIT
+  remote: https://github.com/0x1eef/nanoc-webpack.rb
+  revision: 8d821be4f7d45abaaf79aa9d7656590d158f6d3f
+  specs:
+    nanoc-webpack.rb (0.1.0)
+
 GEM
   remote: https://rubygems.org/
   specs:
@@ -141,6 +147,7 @@ DEPENDENCIES
   nanoc (~> 4.12)
   nanoc-gunzip.rb (~> 0.1)
   nanoc-live (~> 1.0)
+  nanoc-webpack.rb (~> 0.1)!
   paint
   puma
   rainpress (~> 1.0)

Rules

@@ -2,6 +2,7 @@
 # frozen_string_literal: true
 require "ryo"
 require "nanoc-gunzip"
+require "nanoc-webpack"
 
 LOCALES = %w[ar en]
 SURAH_ID_TO_SLUG = Ryo.from(

lib/filters/webpack.rb

@@ -1,39 +0,0 @@
-# frozen_string_literal: true
-
-##
-# Compiles a JavaScript / TypeScript asset with webpack.
-class Nanoc::Filter::Webpack < Nanoc::Filter
-  include FileUtils
-
-  identifier :webpack
-  type :text
-  always_outdated
-
-  def run(content, options = {})
-    webpack(temp_file(content))
-  end
-
-  private
-
-  def webpack(file)
-    system "node",
-           "./node_modules/webpack/bin/webpack.js",
-           "--entry", File.join("./src", item.identifier.to_s),
-           "--output-path", File.dirname(file.path),
-           "--output-filename", File.basename(file.path)
-    if $?.success?
-      File.read(file.path).tap { file.tap(&:unlink).close }
-    else
-      file.tap(&:unlink).close
-      exit!($?.exitstatus)
-    end
-  end
-
-  def temp_file(content)
-    dir = File.join(Dir.getwd, "tmp", "webpack")
-    mkdir_p(dir) unless Dir.exist?(dir)
-    file = Tempfile.new(File.basename(item.identifier.to_s), dir)
-    file.write(content)
-    file.tap(&:flush)
-  end
-end