Remove rake dependency from ruby_source product

Author: kateinoigakukun

lib/ruby_wasm/build_system/product/baseruby.rb

@@ -1,4 +1,3 @@
-require "rake"
 require_relative "./product"
 
 module RubyWasm
@@ -25,7 +24,7 @@ def name
 
     def build
       FileUtils.mkdir_p product_build_dir
-      Rake::Task[source.configure_file].invoke
+      @source.build
       return if Dir.exist?(install_dir)
       Dir.chdir(product_build_dir) do
         system "#{source.configure_file} --prefix=#{install_dir} --disable-install-doc"

lib/ruby_wasm/build_system/product/crossruby.rb

@@ -64,8 +64,8 @@ def do_extconf(crossruby)
       ]
       # Clear RUBYOPT to avoid loading unrelated bundle setup
       system ({ "RUBYOPT" => "" }),
-                   "#{crossruby.baseruby_path} #{extconf_args.join(" ")}",
-                   chdir: objdir
+             "#{crossruby.baseruby_path} #{extconf_args.join(" ")}",
+             chdir: objdir
     end
 
     def do_install_rb(crossruby)
@@ -115,8 +115,7 @@ def initialize(
     def configure(reconfigure: false)
       if !File.exist?("#{build_dir}/Makefile") || reconfigure
         args = configure_args(RbConfig::CONFIG["host"], toolchain)
-        system "#{source.configure_file} #{args.join(" ")}",
-                     chdir: build_dir
+        system "#{source.configure_file} #{args.join(" ")}", chdir: build_dir
       end
       # NOTE: we need rbconfig.rb at configuration time to build user given extensions with mkmf
       system "make rbconfig.rb", chdir: build_dir
@@ -131,8 +130,7 @@ def build_exts
     def build(remake: false, reconfigure: false)
       FileUtils.mkdir_p dest_dir
       FileUtils.mkdir_p build_dir
-      Rake::Task[source.configure_file].invoke
-      @baseruby.build
+      [@source, @baseruby].each(&:build)
       dep_tasks.each(&:invoke)
       configure(reconfigure: reconfigure)
       build_exts

lib/ruby_wasm/build_system/product/ruby_source.rb

@@ -1,4 +1,3 @@
-require "rake"
 require_relative "./product"
 
 module RubyWasm
@@ -24,24 +23,23 @@ def fetch
       case @params[:type]
       when "github"
         repo_url = "https://github.com/#{@params[:repo]}.git"
-        mkdir_p src_dir
-        sh "git init", chdir: src_dir
-        sh "git remote add origin #{repo_url}", chdir: src_dir
-        sh "git fetch --depth 1 origin #{@params[:rev]}", chdir: src_dir
-        sh "git checkout #{@params[:rev]}", chdir: src_dir
+        FileUtils.mkdir_p src_dir
+        system "git init", chdir: src_dir
+        system "git remote add origin #{repo_url}", chdir: src_dir
+        system "git fetch --depth 1 origin #{@params[:rev]}", chdir: src_dir
+        system "git checkout #{@params[:rev]}", chdir: src_dir
       else
         raise "unknown source type: #{@params[:type]}"
       end
     end
 
-    def define_task
-      directory src_dir do
-        fetch
-      end
-      file configure_file => [src_dir] do
-        sh "ruby tool/downloader.rb -d tool -e gnu config.guess config.sub",
-           chdir: src_dir
-        sh "./autogen.sh", chdir: src_dir
+    def build
+      fetch unless File.exist?(src_dir)
+      unless File.exist?(configure_file)
+        Dir.chdir(src_dir) do
+          system "ruby tool/downloader.rb -d tool -e gnu config.guess config.sub"
+          system "./autogen.sh"
+        end
       end
     end
   end

lib/ruby_wasm/rake_task.rb

@@ -48,7 +48,7 @@ def initialize(
     @zlib =
       add_product RubyWasm::ZlibProduct.new(@build_dir, @target, @toolchain)
     @wasi_vfs = add_product RubyWasm::WasiVfsProduct.new(@build_dir)
-    @source = add_product RubyWasm::BuildSource.new(src, @build_dir)
+    @source = RubyWasm::BuildSource.new(src, @build_dir)
     @baseruby = RubyWasm::BaseRubyProduct.new(@build_dir, @source)
 
     build_params =