diff options
Diffstat (limited to 'Library/Homebrew/extend')
| -rw-r--r-- | Library/Homebrew/extend/fileutils.rb | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/Library/Homebrew/extend/fileutils.rb b/Library/Homebrew/extend/fileutils.rb index 5531f6e6e..8792c23b5 100644 --- a/Library/Homebrew/extend/fileutils.rb +++ b/Library/Homebrew/extend/fileutils.rb @@ -35,4 +35,50 @@ module FileUtils extend self end end + # The #copy_metadata method in all current versions of Ruby has a + # bad bug which causes copying symlinks across filesystems to fail; + # see #14710. + # This was resolved in Ruby HEAD after the release of 1.9.3p194, but + # as of September 2012 isn't in any released version of Ruby. + # The monkey-patched method here is copied directly from upstream fix. + if RUBY_VERSION < "1.9.3" or RUBY_PATCHLEVEL < 195 + class Entry_ + def copy_metadata(path) + st = lstat() + if !st.symlink? + File.utime st.atime, st.mtime, path + end + begin + if st.symlink? + begin + File.lchown st.uid, st.gid, path + rescue NotImplementedError + end + else + File.chown st.uid, st.gid, path + end + rescue Errno::EPERM + # clear setuid/setgid + if st.symlink? + begin + File.lchmod st.mode & 01777, path + rescue NotImplementedError + end + else + File.chmod st.mode & 01777, path + end + else + if st.symlink? + begin + File.lchmod st.mode, path + rescue NotImplementedError + end + else + File.chmod st.mode, path + end + end + end + end + end + end |