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I wrote a method for FileUtils to do recursive hard linking. It works just like cp_r but links instead of copies.
The code can be found along with the pull request I made to ruby/ruby on Github:
It's a pretty handy method for "staging" read-only files. For example I've used it to stage test fixture files in a tmp testing location and I've used it collect together a set of files for packaging into a tarball.
#2 Updated by Yukihiro Matsumoto almost 3 years ago
Since ln command does not have -r option, I am kind of hesitating to add ln_r. I understand usefulness of the method. But I am not sure yet where to add (is fileutils the best place?), and what to add (is ln_r the best name for the method?).
#5 Updated by Jamie Winsor over 1 year ago
This ticket hasn't seen action in a year, but I wanted to chime in and +1 the feature.
Having a convenience function to recursively create hard links based on a source directory is a rare need, but a need, nonetheless. I think FileUtils is a fine place for it when compared to the other choices of where to place it in Ruby core.