Feature #4189


Added by Thomas Sawyer about 6 years ago. Updated about 4 years ago.

Target version:


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.

fileutils_ln_r.patch View (4.72 KB) Zachary Scott, 11/19/2012 07:09 AM


#1 [ruby-core:35848] Updated by Yui NARUSE almost 6 years ago

  • Status changed from Open to Assigned
  • Assignee set to Yukihiro Matsumoto



#2 [ruby-core:35849] Updated by Yukihiro Matsumoto almost 6 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?).


#3 [ruby-core:35850] Updated by Sakuro OZAWA almost 6 years ago

X11 distribution has lndir command, it creates real directories and file symlinks though.

#4 [ruby-core:35870] Updated by Johan Holmberg almost 6 years ago

GNU cp has the -l option, so I think the proposed method is similiar to "cp -lr" on Linux systems.

#5 [ruby-core:45813] Updated by Jamie Winsor over 4 years 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.

#6 [ruby-core:49532] Updated by Zachary Scott over 4 years ago

Adding Thomas' patch from github.

#7 [ruby-core:49960] Updated by Yusuke Endoh about 4 years ago

  • Target version set to next minor

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