Use Thermite to build/integrate the Rust+Ruby code

.gitignore

@@ -14,3 +14,6 @@ mkmf.log
 **/*.gem
 .idea
 /rubyspec_temp/
+*.dll
+*.dylib
+*.so

.travis.yml

@@ -24,5 +24,5 @@ matrix:
 before_install:
 - gem install bundler -v 1.12.5
 - curl -sSf https://static.rust-lang.org/rustup.sh | sudo sh -s -- --channel=nightly
-- bundle && bundle exec rake build_src && rake clean_src
+- bundle && bundle exec rake build_lib
 script: bundle exec rake test

Cargo.toml

@@ -8,6 +8,9 @@ repository = "https://github.com/danielpclark/faster_path"
 license = "MIT OR Apache-2.0"
 readme = "README.md"
 
+[package.metadata.thermite]
+github_releases = true
+
 [lib]
 name = "faster_path"
 crate-type = ["dylib"]

Rakefile

@@ -1,30 +1,12 @@
 require 'bundler/gem_tasks'
 require 'rake/testtask'
-require 'fileutils'
+require 'thermite/tasks'
 
-desc 'Build Rust extension'
-task :build_src do
-  puts 'Building extension...'
-  sh 'cargo build --release'
-end
-
-desc 'Clean up Rust build'
-task :clean_src do
-  puts 'Cleaning up build...'
-  # Remove all but library file
-  FileUtils.
-    rm_rf(
-      Dir.
-      glob('target/release/*').
-      keep_if do |f|
-        !f[/\.(?:so|dll|dylib|deps)\z/]
-      end
-  )
-end
+thermite = Thermite::Tasks.new
 
 desc 'Build + clean up Rust extension'
-task build_lib: [:build_src, :clean_src] do
-  puts 'Completed build!'
+task build_lib: 'thermite:build' do
+  thermite.run_cargo 'clean'
 end
 
 desc 'Code Quality Check'

ext/Rakefile

@@ -0,0 +1,7 @@
+require 'thermite/tasks'
+
+project_toplevel_dir = File.dirname(File.dirname(__FILE__))
+Thermite::Tasks.new(cargo_project_path: project_toplevel_dir,
+                    ruby_project_path: project_toplevel_dir)
+
+task default: 'thermite:build'

faster_path.gemspec

@@ -21,12 +21,13 @@ Gem::Specification.new do |spec|
   spec.files += Dir['lib/**/*']
   spec.files += Dir['src/**/*']
 
-  spec.extensions    << "ext/faster_path/extconf.rb"
+  spec.extensions    = ["ext/Rakefile"]
   spec.require_paths = ["lib"]
 
   spec.add_dependency "bundler", "~> 1.12"
   spec.add_dependency "rake", "~> 12.0"
   spec.add_dependency "ffi", "~> 1.9"
+  spec.add_dependency "thermite", "~> 0.11.0"
   spec.add_development_dependency "method_source", "~> 0.8.2"
   spec.add_development_dependency "minitest", "~> 5.10"
   spec.add_development_dependency "minitest-reporters", "~> 1.1"

lib/faster_path.rb

@@ -1,7 +1,8 @@
-require "faster_path/version"
+require 'faster_path/version'
+require 'ffi'
 require 'pathname'
-require "ffi"
 require 'faster_path/asset_resolution'
+require 'thermite/config'
 
 module FasterPath
   def self.rust_arch_bits
@@ -73,8 +74,10 @@ def self.entries(pth)
   module Rust
     extend FFI::Library
     ffi_lib begin
-      prefix = Gem.win_platform? ? "" : "lib"
-      "#{File.expand_path("../target/release/", __dir__)}/#{prefix}faster_path.#{FFI::Platform::LIBSUFFIX}"
+      toplevel_dir = File.dirname(File.dirname(__FILE__))
+      config = Thermite::Config.new(cargo_project_path: toplevel_dir,
+                                    ruby_project_path: toplevel_dir)
+      config.ruby_extension_path
     end
 
     class FromRustArray < FFI::Struct

test/faster_path_test.rb

@@ -1,11 +1,13 @@
 require 'test_helper'
-require 'ffi'
+require 'thermite/config'
 
 class FasterPathTest < Minitest::Test
   def test_it_build_linked_library
     assert File.exist? begin
-      prefix = Gem.win_platform? ? "" : "lib"
-      "#{File.expand_path("../target/release/", File.dirname(__FILE__))}/#{prefix}faster_path.#{FFI::Platform::LIBSUFFIX}"
+      toplevel_dir = File.dirname(File.dirname(__FILE__))
+      config = Thermite::Config.new(cargo_project_path: toplevel_dir,
+                                    ruby_project_path: toplevel_dir)
+      config.ruby_extension_path
     end
   end
 end