Class: PortPurge::CLI

Inherits:
Object
  • Object
show all
Defined in:
lib/port_purge/cli.rb

Constant Summary collapse

DOTFILEPATH =
File.join(ENV['HOME'],".port_upgrade_ports")

Class Method Summary collapse

Class Method Details

.execute(stdout, arguments = []) ⇒ Object



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# File 'lib/port_purge/cli.rb', line 10

def self.execute(stdout, arguments=[])
  options = OpenStruct.new
  options.filter = nil
  opts = OptionParser.new do |opts|
    opts.banner = "Usage: port_purge [-f filter]"
    opts.on("-f", "--filter FILTER","FILTER ports to purge") do |filter|
      options.filter  = filter
    end
  end      
  opts.parse!
  
  @to_remove = []
  @keep = []
  begin
    @keep = YAML::load(File.read(DOTFILEPATH)) if File.readable?(DOTFILEPATH)
  rescue ArgumentError
    $stderr.puts("Badly formed .port_upgrade_ports file. Skipping.")
  end
  @pdb = PortsDB.new
  ports = @pdb.db.query('select port from ports').collect{|p| p[0]}
  deps = @pdb.db.query('select dep from deps').collect{|p| p[0]}
  $stderr.puts "Leaves:"
  diff = (ports-deps).sort
  $stderr.puts "Applying filter /#{options.filter}/" unless options.filter.nil?
  diff.each do |leaf|
    next if @keep.include? leaf
    unless options.filter.nil?
      next unless Regexp.compile(options.filter).match(leaf)
    end
    
    $stderr.print leaf
    $stderr.print "   Remove? (Y/N/S/Q)"
    reply = $stdin.gets
    case reply.strip
    when /^(yes|y)$/i
      @to_remove << leaf
    when /^(quit|q)$/i
      exit -1
    when /^(skip|s)$/i
      break
      $stderr.puts
    else
      @keep << leaf
    end
  end
  File.open(DOTFILEPATH,'w') do |f|
    f.write(@keep.to_yaml)
  end
  exit 0 unless @to_remove.size > 0
  $stderr.print "Really remove #{@to_remove.join(" ")} ? (type yes) "
  reply = $stdin.gets
  if reply =~ /^yes$/i
    @to_remove.each do |leaf|
      s = "port uninstall #{leaf}"
      $stderr.puts s
      system(s)
    end
  else
    $stderr.puts "Exiting"
    exit -1
  end
end