Class: RubyWasm::WASISDK

Inherits:
Toolchain show all
Defined in:
lib/ruby_wasm/build/toolchain.rb

Instance Attribute Summary

Attributes inherited from Toolchain

#name

Instance Method Summary collapse

Methods inherited from Toolchain

#check_envvar, check_executable, find_path, get

Constructor Details

#initialize(wasi_sdk_path = , build_dir: nil, version_major: 20, version_minor: 0, binaryen_version: 108) ⇒ WASISDK

Returns a new instance of WASISDK.



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# File 'lib/ruby_wasm/build/toolchain.rb', line 56

def initialize(
  wasi_sdk_path = ENV["WASI_SDK_PATH"],
  build_dir: nil,
  version_major: 20,
  version_minor: 0,
  binaryen_version: 108
)
  @wasm_opt_path = Toolchain.find_path("wasm-opt")
  @need_fetch_wasi_sdk = wasi_sdk_path.nil?
  @need_fetch_binaryen = @wasm_opt_path.nil?

  if @need_fetch_wasi_sdk
    if build_dir.nil?
      raise "build_dir is required when WASI_SDK_PATH is not set"
    end
    wasi_sdk_path = File.join(build_dir, "toolchain", "wasi-sdk")
    @version_major = version_major
    @version_minor = version_minor
  end

  if @need_fetch_binaryen
    if build_dir.nil?
      raise "build_dir is required when wasm-opt not installed in PATH"
    end
    @binaryen_path = File.join(build_dir, "toolchain", "binaryen")
    @binaryen_version = binaryen_version
    @wasm_opt_path = File.join(@binaryen_path, "bin", "wasm-opt")
  end

  @tools = {
    cc: "#{wasi_sdk_path}/bin/clang",
    ld: "#{wasi_sdk_path}/bin/clang",
    ar: "#{wasi_sdk_path}/bin/llvm-ar",
    ranlib: "#{wasi_sdk_path}/bin/llvm-ranlib"
  }
  @wasi_sdk_path = wasi_sdk_path
  @name = "wasi-sdk"
end

Instance Method Details

#binaryen_download_url(version) ⇒ Object 



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# File 'lib/ruby_wasm/build/toolchain.rb', line 123

def binaryen_download_url(version)
  assets = [
    [
      /x86_64-linux/,
      "binaryen-version_#{@binaryen_version}-x86_64-linux.tar.gz"
    ],
    [
      /x86_64-darwin/,
      "binaryen-version_#{@binaryen_version}-x86_64-macos.tar.gz"
    ],
    [
      /arm64e?-darwin/,
      "binaryen-version_#{@binaryen_version}-arm64-macos.tar.gz"
    ]
  ]
  asset = assets.find { |os, _| os =~ RUBY_PLATFORM }&.at(1)
  if asset.nil?
    raise "unsupported platform for fetching Binaryen: #{RUBY_PLATFORM}"
  end
  "https://github.com/WebAssembly/binaryen/releases/download/version_#{@binaryen_version}/#{asset}"
end

#download_url(version_major, version_minor) ⇒ Object 



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# File 'lib/ruby_wasm/build/toolchain.rb', line 110

def download_url(version_major, version_minor)
  version = "#{version_major}.#{version_minor}"
  assets = [
    [/x86_64-linux/, "wasi-sdk-#{version}-linux.tar.gz"],
    [/(arm64e?|x86_64)-darwin/, "wasi-sdk-#{version}-macos.tar.gz"]
  ]
  asset = assets.find { |os, _| os =~ RUBY_PLATFORM }&.at(1)
  if asset.nil?
    raise "unsupported platform for fetching WASI SDK: #{RUBY_PLATFORM}"
  end
  "https://github.com/WebAssembly/wasi-sdk/releases/download/wasi-sdk-#{version_major}/#{asset}"
end

#find_tool(name) ⇒ Object 



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# File 'lib/ruby_wasm/build/toolchain.rb', line 95

def find_tool(name)
  if !File.exist?(@tools[name]) && !ENV["WASI_SDK_PATH"].nil?
    raise "missing tool '#{name}' at #{@tools[name]}"
  end
  @tools[name]
end

#install ⇒ Object 



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# File 'lib/ruby_wasm/build/toolchain.rb', line 173

def install
  install_wasi_sdk
  install_binaryen
end

#install_binaryen ⇒ Object 



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# File 'lib/ruby_wasm/build/toolchain.rb', line 159

def install_binaryen
  return unless @need_fetch_binaryen
  binaryen_tarball = File.expand_path("../binaryen.tar.gz", @binaryen_path)
  unless File.exist? binaryen_tarball
    FileUtils.mkdir_p File.dirname(binaryen_tarball)
    system "curl -L -o #{binaryen_tarball} #{self.binaryen_download_url(@binaryen_version)}"
  end

  unless File.exist? @binaryen_path
    FileUtils.mkdir_p @binaryen_path
    system "tar -C #{@binaryen_path} --strip-component 1 -xzf #{binaryen_tarball}"
  end
end

#install_wasi_sdk ⇒ Object 



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# File 'lib/ruby_wasm/build/toolchain.rb', line 145

def install_wasi_sdk
  return unless @need_fetch_wasi_sdk
  wasi_sdk_tarball =
    File.join(File.dirname(@wasi_sdk_path), "wasi-sdk.tar.gz")
  unless File.exist? wasi_sdk_tarball
    FileUtils.mkdir_p File.dirname(wasi_sdk_tarball)
    system "curl -L -o #{wasi_sdk_tarball} #{self.download_url(@version_major, @version_minor)}"
  end
  unless File.exist? @wasi_sdk_path
    FileUtils.mkdir_p @wasi_sdk_path
    system "tar -C #{@wasi_sdk_path} --strip-component 1 -xzf #{wasi_sdk_tarball}"
  end
end

#wasi_sdk_path ⇒ Object 



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# File 'lib/ruby_wasm/build/toolchain.rb', line 106

def wasi_sdk_path
  @wasi_sdk_path
end

#wasm_opt ⇒ Object 



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# File 'lib/ruby_wasm/build/toolchain.rb', line 102

def wasm_opt
  @wasm_opt_path
end