pkg_sort

#!/usr/bin/env ruby
# -*- ruby -*-
# vim: set sts=2 sw=2 ts=8 et:
#
# Copyright (c) 2000-2004 Akinori MUSHA
# Copyright (c) 2006-2008 Sergey Matveychuk <[email protected]>
# Copyright (c) 2009-2012 Stanislav Sedov <[email protected]>
# Copyright (c) 2012 Bryan Drewery <[email protected]>
#
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#

MYNAME = File.basename($0)

require "optparse"
require "pkgtools"

COLUMNSIZE = 22
NEXTLINE = "\n%*s" % [5 + COLUMNSIZE, '']

def init_global
  $noconfig = false
  $temp_dir = ""
end

def main(argv)
  usage = <<-"EOF"
usage: #{MYNAME} [-hq]
  EOF

  banner = <<-"EOF"
#{MYNAME} #{Version} (#{PkgTools::DATE})

#{usage}
  EOF

  dry_parse = true

  OptionParser.new(banner, COLUMNSIZE) do |opts|
    opts.def_option("-h", "--help", "Show this message") {
      print opts
      exit 0
    }

    opts.def_option("-q", "--noconfig", "Do not read pkgtools.conf") { |v|
      $noconfig = v
    }

    opts.def_tail_option '
Environment Variables [default]:
    PKGTOOLS_CONF            configuration file [$PREFIX/etc/pkgtools.conf]
    PKG_DBDIR                packages DB directory [/var/db/pkg]'

    tasks = []

    begin
      init_global
      init_pkgtools_global

      rest = opts.order(*argv)

      unless $noconfig
        init_global
	load_config
      else
	argv = rest
      end

      dry_parse = false

      opts.order!(argv)
    rescue OptionParser::ParseError => e
      STDERR.puts "#{MYNAME}: #{e}", usage
      exit 64
    end

    pkgs = []

    STDIN.each { |line|
      pkg = line.chomp

      if $pkgdb.installed?(pkg)
	pkgs << pkg
      else
	STDERR.puts "No such package is installed: #{pkg}"
      end
    }

    list = $pkgdb.sort_build!(pkgs) 

    puts(*list) unless list.empty?

    return 0
  end
end

if $0 == __FILE__
  set_signal_handlers

  exit(main(ARGV) || 1)
end