96 lines
2.3 KiB
Ruby
96 lines
2.3 KiB
Ruby
# Cleans a newly installed keg.
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# By default:
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# * removes info files
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# * removes .la files
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# * removes empty directories
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# * sets permissions on executables
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class Cleaner
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# Create a cleaner for the given formula name, and clean the keg
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def initialize f
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@f = Formula.factory f
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[f.bin, f.sbin, f.lib].select{ |d| d.exist? }.each{ |d| clean_dir d }
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if ENV['HOMEBREW_KEEP_INFO']
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# Get rid of the directory file, so it no longer bother us at link stage.
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info_dir_file = f.info + 'dir'
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if info_dir_file.file? and not f.skip_clean? info_dir_file
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puts "rm #{info_dir_file}" if ARGV.verbose?
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info_dir_file.unlink
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end
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else
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f.info.rmtree if f.info.directory? and not f.skip_clean? f.info
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end
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# Remove empty folders.
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# We want post-order traversal, so use a stack.
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paths = []
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f.prefix.find do |path|
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if path.directory?
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if f.skip_clean? path
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Find.prune
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else
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paths << path
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end
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end
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end
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paths.each do |d|
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if d.children.empty? and not f.skip_clean? d
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puts "rmdir: #{d} (empty)" if ARGV.verbose?
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d.rmdir
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end
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end
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end
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private
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# Set permissions for executables and non-executables
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def clean_file_permissions path
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perms = if path.mach_o_executable? || path.text_executable?
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0555
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else
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0444
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end
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if ARGV.debug?
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old_perms = path.stat.mode
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if perms != old_perms
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puts "Fixing #{path} permissions from #{old_perms.to_s(8)} to #{perms.to_s(8)}"
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end
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end
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path.chmod perms
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end
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# Clean a single folder (non-recursively)
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def clean_dir d
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d.find do |path|
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path.extend(NoisyPathname) if ARGV.verbose?
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if path.directory?
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# Stop cleaning this subtree if protected
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Find.prune if @f.skip_clean? path
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elsif not path.file?
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# Sanity?
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next
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elsif path.extname == '.la'
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# *.la files are stupid
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path.unlink unless @f.skip_clean? path
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elsif path == @f.lib+'charset.alias'
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# Many formulae symlink this file, but it is not strictly needed
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path.unlink unless @f.skip_clean? path
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elsif not path.symlink?
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# Fix permissions
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clean_file_permissions path
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end
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end
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end
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end
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module NoisyPathname
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def unlink
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puts "rm: #{self}"
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super
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end
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end
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