Can't enhance gemspec task

[patrickhno]

I have enhanced the gemspec task to include platform specific patches, but "rake release" generates a new gemspec file ignoring the enhanced task.

Rake::Task["gemspec"].enhance do
  spec = "opine.gemspec"
  text = File.read(spec)
  text.gsub!(/^(.*<cocoa>.*)$/, '\1 if RUBY_PLATFORM =~ /darwin/')
  text.gsub!(/^(.*<stench>.*)$/, '\1 if RUBY_PLATFORM =~ /cygwin|mingw|mswin|windows/')
  File.open(spec, 'w') { |file| file.write(text) }
end

[technicalpickles]

I'm not really familiar with Rake::Task#enhance, so can't comment on it's effectiveness here.

What I do know is that multiplatform gems are tricky with jeweler, because the gemspec only gets evaluated once, and then written to disk. At the time it's evaluated (or enhanced), it's on a specific RUBY_PLATFORM doing so. The Gem specification does not, to my knowledge, have a builtin concept of platform. You'd have to release separate gems for that.

[mfazekas]

FYI this can be worked around like: #170 (comment)