Vendor prettier_print into wasm package

Author: wenderjean

Rakefile

@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 file "wasi-vfs" do
-  version = "0.1.1"
+  version = "0.2.0"
   filename =
     if ENV["CI"]
       "wasi-vfs-cli-x86_64-unknown-linux-gnu.zip"
@@ -19,7 +19,7 @@ file "head-wasm32-unknown-wasi-full-js" do
   version = JSON.parse(File.read("package.json"))["dependencies"]["ruby-head-wasm-wasi"][1..]
   filename = "ruby-head-wasm32-unknown-wasi-full-js.tar.gz"
 
-  `curl -LO https://github.com/ruby/ruby.wasm/releases/download/ruby-head-wasm-wasi-#{version}/#{filename}`
+  `curl -LO https://github.com/ruby/ruby.wasm/releases/download/ruby-head-wasm-wasi-#{version}/ruby-head-wasm32-unknown-wasi-full-js.tar.gz`
   `tar xfz #{filename}`
   rm filename
 end
@@ -30,7 +30,9 @@ end
 
 file "src/app.wasm" => ["Gemfile.lock", "wasi-vfs", "ruby.wasm"] do
   require "bundler/setup"
-  cp_r $:.find { _1.include?("syntax_tree") }, "lib"
+
+  cp_r $:.find { _1.include?("syntax_tree") }, "."
+  cp_r $:.find { _1.include?("prettier_print") }, "."
 
   `./wasi-vfs pack ruby.wasm --mapdir /lib::./lib --mapdir /usr::./head-wasm32-unknown-wasi-full-js/usr -o src/app.wasm`
   rm_rf "lib"

src/createRuby.ts

@@ -66,10 +66,12 @@ export default async function createRuby() {
   // files to make it work. I'm not sure why I need to explicitly require
   // did_you_mean here, but it doesn't work without it.
   ruby.eval(`
+    require "rubygems"
     require "did_you_mean"
     require "json"
     $:.unshift("/lib")
     require_relative "/lib/syntax_tree"
+    require_relative "/lib/prettier_print"
   `);
 
   return {
@@ -93,10 +95,8 @@ export default async function createRuby() {
     prettyPrint(source: string) {
       const jsonSource = JSON.stringify(JSON.stringify(source));
       const rubySource = `
-        PP.format([], 80) do |q|
-          source = JSON.parse(${jsonSource})
-          SyntaxTree.parse(source).pretty_print(q)
-        end.join
+        source = JSON.parse(${jsonSource})
+        SyntaxTree.parse(source).pretty_inspect
       `;
 
       return ruby.eval(rubySource).toString();