add rake format task and apply it

Author: kateinoigakukun

Gemfile

@@ -0,0 +1,7 @@
+# frozen_string_literal: true
+
+source "https://rubygems.org"
+
+group :development do
+  gem "syntax_tree", "~> 3.5"
+end

Gemfile.lock

@@ -0,0 +1,15 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    prettier_print (0.1.0)
+    syntax_tree (3.5.0)
+      prettier_print
+
+PLATFORMS
+  x86_64-linux
+
+DEPENDENCIES
+  syntax_tree (~> 3.5)
+
+BUNDLED WITH
+   2.4.0.dev

lib/ruby_wasm/build_system/product/baseruby.rb

@@ -24,7 +24,6 @@ def name
     end
 
     def define_task
-
       directory product_build_dir
 
       desc "build baseruby #{@channel}"

lib/ruby_wasm/build_system/product/crossruby.rb

@@ -54,10 +54,7 @@ def define_task(crossruby)
         sh make_cmd
         # A ext can provide link args by link.filelist. It contains only built archive file by default.
         unless File.exist?(linklist(crossruby))
-          File.write(
-            linklist(crossruby),
-            Dir.glob("#{objdir}/*.a").join("\n")
-          )
+          File.write(linklist(crossruby), Dir.glob("#{objdir}/*.a").join("\n"))
         end
       end
     end
@@ -207,9 +204,7 @@ def configure_args(build_triple, toolchain)
         raise "unknown target: #{target}"
       end
 
-      (user_exts || []).each do |lib|
-        xldflags << "@#{lib.linklist(self)}"
-      end
+      (user_exts || []).each { |lib| xldflags << "@#{lib.linklist(self)}" }
       xldflags << extinit_obj
 
       xcflags = []

lib/ruby_wasm/rake_task.rb

@@ -2,25 +2,47 @@
 require_relative "./build_system"
 
 class RubyWasm::BuildTask < ::Rake::TaskLib
-
-  def initialize(name, target:, src:, extensions: [], toolchain: nil, build_dir: nil, rubies_dir: nil, **options, &task_block)
+  def initialize(
+    name,
+    target:,
+    src:,
+    extensions: [],
+    toolchain: nil,
+    build_dir: nil,
+    rubies_dir: nil,
+    **options,
+    &task_block
+  )
     build_dir ||= File.join(Dir.pwd, "build")
     rubies_dir ||= File.join(Dir.pwd, "rubies")
     toolchain ||= RubyWasm::Toolchain.get target
 
-    libyaml = add_product RubyWasm::LibYAMLProduct.new(build_dir, target, toolchain)
+    libyaml =
+      add_product RubyWasm::LibYAMLProduct.new(build_dir, target, toolchain)
     zlib = add_product RubyWasm::ZlibProduct.new(build_dir, target, toolchain)
 
     source = add_product RubyWasm::BuildSource.new(src, build_dir)
     baseruby = add_product RubyWasm::BaseRubyProduct.new(build_dir, source)
 
-    build_params = RubyWasm::BuildParams.new(
-      options.merge(
-        name: name, src: source, target: target, user_exts: extensions
+    build_params =
+      RubyWasm::BuildParams.new(
+        options.merge(
+          name: name,
+          src: source,
+          target: target,
+          user_exts: extensions
+        )
       )
-    )
 
-    product = RubyWasm::CrossRubyProduct.new(build_params, build_dir, rubies_dir, baseruby, source, toolchain)
+    product =
+      RubyWasm::CrossRubyProduct.new(
+        build_params,
+        build_dir,
+        rubies_dir,
+        baseruby,
+        source,
+        toolchain
+      )
     product.with_libyaml libyaml
     product.with_zlib zlib
     product.define_task
@@ -30,9 +52,7 @@ def initialize(name, target:, src:, extensions: [], toolchain: nil, build_dir: n
 
   def add_product(product)
     @@products ||= {}
-    if @@products[product.name]
-      return @@products[product.name]
-    end
+    return @@products[product.name] if @@products[product.name]
     @@products[product.name] = product
     product.define_task
     product

tasks/format.rake

@@ -0,0 +1,5 @@
+begin
+    require "syntax_tree/rake_tasks"
+    SyntaxTree::Rake::WriteTask.new(:format)
+rescue LoadError
+end