_base-rubygem-native-extension.rb

# This file is a common basis for multiple rubygem components.
#
# It is used with gems that have native extensions that need compilation on windows
#
# It should not be included as a component itself; Instead, other components
# should load it with instance_eval after setting pkg.version. Parts of this
# shared configuration may be overridden afterward.

name = pkg.get_name.gsub('rubygem-', '')
unless name && !name.empty?
  raise "Rubygem component files that instance_eval _base-rubygem must be named rubygem-<gem-name>.rb"
end

version = pkg.get_version
unless version && !version.empty?
  raise "You must set the `pkg.version` in your rubygem component before instance_eval'ing _base-rubygem-native-extension.rb"
end

pkg.build_requires "runtime-#{settings[:runtime_project]}"
pkg.build_requires "pl-ruby-patch" if platform.is_cross_compiled?

if platform.is_windows? 
  ruby_gem_ver = 'ruby-2.7.0'
  ruby_bindir ||= settings[:ruby_bindir]
  build_env_path = [
    "$(shell cygpath -u C:/ProgramData/chocolatey/lib/mingw/tools/install/mingw64/bin)",
    "$(shell cygpath -u #{settings[:tools_root]}/bin)",
    "$(shell cygpath -u #{settings[:tools_root]}/include)",
    "$(shell cygpath -u #{settings[:bindir]})",
    "$(shell cygpath -u #{ruby_bindir})",
    "$(shell cygpath -u #{settings[:includedir]})",
    "$(PATH)",
  ].join(":")
  pkg.environment "PATH", build_env_path
  pkg.environment 'CONFIGURE_ARGS', "--with-cflags='-I#{settings[:includedir]}/#{ruby_gem_ver}'"
end

# When cross-compiling, we can't use the rubygems we just built.
# Instead we use the host gem installation and override GEM_HOME. Yay?
pkg.environment "GEM_HOME", settings[:gem_home]

# PA-25 in order to install gems in a cross-compiled environment we need to
# set RUBYLIB to include puppet and hiera, so that their gemspecs can resolve
# hiera/version and puppet/version requires. Without this the gem install
# will fail by blowing out the stack.
if settings[:ruby_vendordir]
  pkg.environment "RUBYLIB", "#{settings[:ruby_vendordir]}:$(RUBYLIB)"
end

pkg.url("https://rubygems.org/downloads/#{name}-#{version}.gem")
pkg.mirror("#{settings[:buildsources_url]}/#{name}-#{version}.gem")

pkg.install do
  "#{settings[:gem_install]} #{name}-#{version}.gem"
end