Class: Setup::Uninstaller

Inherits:
Base
  • Object
show all
Defined in:
lib/setup/uninstaller.rb

Overview

TODO: It would be nice to improve this such that files to be removed are taken out of the list of directories that may be removed when they become empty. That way the end-user can see an exact list before commiting to the uninstall (using –force).

Instance Attribute Summary

Attributes inherited from Base

#config, #force, #io, #project, #quiet, #trace, #trial

Instance Method Summary collapse

Methods inherited from Base

#bash, #force?, #force_remove_file, #initialize, #initialize_hooks, #quiet?, #remove_file, #rm_f, #rmdir, #rootdir, #ruby, #trace?, #trace_off, #trial?

Constructor Details

This class inherits a constructor from Setup::Base

Instance Method Details

#uninstall ⇒ Object 



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# File 'lib/setup/uninstaller.rb', line 14

def uninstall
  return unless File.exist?(INSTALL_RECORD)

  files = []
  dirs  = []

  paths.each do |path|
    dirs  << path if File.dir?(path)
    files << path if File.file?(path)
  end

  if dirs.empty? && files.empty?
    io.outs "Nothing to remove."
    return
  end

  files.sort!{ |a,b| b.size <=> a.size }
  dirs.sort!{ |a,b| b.size <=> a.size }

  if !force? && !trial?
    puts (files + dirs).collect{ |f| "#{f}" }.join("\n")
    puts
    puts "Must use --force option to remove these files and directories that become empty."
    return
  end

  files.each do |file|
    rm_f(file)
  end

  dirs.each do |dir|
    entries = Dir.entries(dir)
    entries.delete('.')
    entries.delete('..')

    #begin
      rmdir(dir) if entries.empty?
    #rescue Errno::ENOTEMPTY
    #  io.puts "not empty -- #{dir}"
    #end
  end

  rm_f(INSTALL_RECORD)
end