Class: Prebake::PlatformGemBuilder

Inherits:
Object
  • Object
show all
Defined in:
lib/prebake/platform_gem_builder.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(spec) ⇒ PlatformGemBuilder

Returns a new instance of PlatformGemBuilder.



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# File 'lib/prebake/platform_gem_builder.rb', line 15

def initialize(spec)
  @spec = spec
  @checksum = nil
end

Instance Attribute Details

#checksum ⇒ Object (readonly)

Returns the value of attribute checksum.



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# File 'lib/prebake/platform_gem_builder.rb', line 13

def checksum
  @checksum
end

Instance Method Details

#build ⇒ Object 



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# File 'lib/prebake/platform_gem_builder.rb', line 20

def build
  # Build in a temp directory; Dir.chdir is scoped to it to
  # isolate from Bundler's working directory.
  Dir.mktmpdir("prebake-build") do |build_dir|
    FileUtils.cp_r(File.join(@spec.gem_dir, "."), build_dir)

    platform_spec = build_platform_spec(build_dir)

    gem_file = nil
    Dir.chdir(build_dir) do
      gem_file = Gem::Package.build(platform_spec)
    end

    built_path = File.join(build_dir, gem_file)
    final = File.join(Dir.tmpdir, "prebake-built-#{SecureRandom.hex(16)}.gem")
    FileUtils.cp(built_path, final)

    @checksum = Digest::SHA256.file(final).hexdigest
    Logger.debug "Built #{gem_file} (SHA256: #{@checksum})"

    final
  end
end