Remove unused tasks

Rakefile

@@ -4,40 +4,106 @@
 
 # frozen_string_literal: true
 
+require 'pathname'
 require 'digest/md5'
 require 'net/http'
-require 'open3'
 require_relative 'config/config'
 require_relative 'lib/package'
 require_relative 'lib/download'
 
-task :dmd, [:version] do |_, arguments|
-  raise 'Version is not specified.' unless arguments.key? :version
+namespace :hhvm do
+  def filter_set_hhvm_third_party_source_args(tokens)
+    args = tokens[0]
+    allowed_arguments = tokens[1..].each_slice(2)
+      .filter do |key, _value|
+        !key.end_with?('_URL') && !key.end_with?('_HASH')
+      end
 
-  dub_version = '1.33.0'
-  dscanner_version = '0.15.2'
-  dcd_version = '0.15.2'
+    allowed_arguments
+      .flatten
+      .prepend("  #{args}")
+      .join("\n  ")
+  end
 
-  SlackBuilder::DmdTools.update_dmd arguments[:version]
-  SlackBuilder::DmdTools.update_tools arguments[:version], dub_version, dscanner_version, dcd_version
+  def split_set_hhvm_third_party_source_args(section_content)
+    section_content
+      .split("\n")
+      .map do |line|
+        hash_index = line.index '#'
+        line = line[...hash_index] unless hash_index.nil?
+
+        line.strip
+      end
+  end
+
+  def rewrite_set_hhvm_third_party_source_args(contents)
+    set_hhvm_start = contents.index 'SET_HHVM_THIRD_PARTY_SOURCE_ARGS('
+    return nil if set_hhvm_start.nil?
+
+    section_contents = contents[set_hhvm_start + 'SET_HHVM_THIRD_PARTY_SOURCE_ARGS('.length..]
+    set_hhvm_end = section_contents.index ')'
+
+    lines = split_set_hhvm_third_party_source_args section_contents[...set_hhvm_end]
+    new_cmake_section = filter_set_hhvm_third_party_source_args lines.reject(&:blank?).join(' ').split
+
+    contents[...set_hhvm_start] +
+      "SET_HHVM_THIRD_PARTY_SOURCE_ARGS(\n#{new_cmake_section}\n)\n" +
+      section_contents[set_hhvm_end..]
+  end
+
+  desc 'Generates diffs with removed download URLs'
+  task :bundled_dependencies, [:version] do |_, arguments|
+    run_on_source arguments[:version] do |third_party|
+      c_make_lists = third_party + 'CMakeLists.txt'
+      next unless c_make_lists.exist?
+
+      contents = c_make_lists.read
+      rewritten_cmake = rewrite_set_hhvm_third_party_source_args contents
+      next if rewritten_cmake.nil?
+
+      puts Open3.capture2('diff', '-Nur', c_make_lists.to_path, '-', stdin_data: rewritten_cmake).first
+    end
+  end
+
+  desc 'Generated SlackBuild code to prepare bundled dependencies'
+  task :bundled_code, [:version] do |_, arguments|
+    run_on_source arguments[:version] do |third_party|
+      c_make_lists = third_party + 'CMakeLists.txt'
+      next unless c_make_lists.exist?
+
+      contents = c_make_lists.read
+      set_hhvm_start = contents.index 'SET_HHVM_THIRD_PARTY_SOURCE_ARGS('
+      next if set_hhvm_start.nil?
+
+      set_hhvm_end = contents.index ')', set_hhvm_start
+      set_hhvm_start += 'SET_HHVM_THIRD_PARTY_SOURCE_ARGS('.length
+      set_hhvm_end -= 1
+      contents = contents[set_hhvm_start..set_hhvm_end].split[1..].map(&:strip)
+
+      src = Pathname.new('third-party') +
+        third_party.basename +
+        "bundled_#{third_party.basename}-prefix" + 'src'
+      bundled = src + "bundled_#{third_party.basename}"
+      archive_name = contents[1][contents[1].rindex('/') + 1..-2]
+
+      puts "mkdir -p #{bundled}"
+      puts "install -m 0644 -D $CWD/#{archive_name} #{src + archive_name}"
+      puts "tar -zxvf $CWD/#{archive_name} -C #{bundled}"
+      puts
+    end
+  end
 end
 
-task :hhvm, [:version] do |_, arguments|
-  raise 'Version is not specified.' unless arguments.key? :version
-
-  checksum = {}
-  checksum[:hhvm] = SlackBuilder.clone 'https://github.com/facebook/hhvm.git',
-    "development/hhvm/hhvm-#{arguments[:version]}.tar.xz", 'HHVM-'
+private
 
+def run_on_source(version, &block)
   package = Package.new 'development/hhvm',
-    version: arguments[:version],
+    version: version,
     homepage: 'https://hhvm.com/',
     requires: %w[tbb glog libdwarf libmemcached dobule-conversion]
+  repository = SlackBuilder.clone 'https://github.com/facebook/hhvm.git', package, 'HHVM-'
 
-  write_info package,
-    downloads: [
-      Download.new(SlackBuilder.hosted_sources("/hhvm/hhvm-#{package.version}.tar.xz"), checksum[:hhvm], is64: true)
-    ]
-
-  update_slackbuild_version 'development/hhvm', package.version
+  (repository + 'third-party').each_child do |third_party|
+    block.call third_party
+  end
 end