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module Homebrew extend self
# $n and $d are used by the ObserverPathnameExtension to keep track of
# certain filesystem actions.
def prune
$n = 0
$d = 0
dirs = []
%w[bin sbin etc lib include share].map{ |d| HOMEBREW_PREFIX+d }.each do |path|
path.find do |path|
path.extend ObserverPathnameExtension
if path.symlink?
path.unlink unless path.resolved_path_exists?
elsif path.directory?
dirs << path
end
end
end
dirs.sort.reverse_each{ |d| d.rmdir_if_possible }
if $n == 0 and $d == 0
puts "Nothing pruned" if ARGV.verbose?
else
print "Pruned #{$n} symbolic links "
print "and #{$d} directories " if $d > 0
puts "from #{HOMEBREW_PREFIX}"
end
end
end
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