Swift pacakge manager code coverage

codecov.rb

require 'pathname'

# Swift pacakge manager code coverage
#
# Usage:
#   ruby codecov.rb $(swift test --show-codecov-path)
class Codecov
  def initialize(path)
    # /Users/<user-name>/<package-name>/.build/x86_64-apple-macosx/debug/codecov/<package-name>.json
    @path = Pathname.new(path)
  end

  def profdata
    @path.parent + 'default.profdata'
  end

  def package_name
    @package_name ||= @path.basename(".json")
  end

  def executable
    @path.parent.parent + "#{package_name}PackageTests.xctest/Contents/MacOS/#{package_name}PackageTests"
  end

  def report
    command = %Q(xcrun llvm-cov report #{executable} -instr-profile=#{profdata} -ignore-filename-regex=".build|Tests")
    system(command, exception: true)
  end
end

Codecov.new(*ARGV).report