Class: AptCache

Inherits:
Object
  • Object
show all
Defined in:
lib/xs/apt_cache.rb

Class Method Summary collapse

Class Method Details

.installed?(pkg) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/xs/apt_cache.rb', line 72

def self.installed?(pkg)
  Open3.popen3("dpkg -l #{pkg}") { |stdin, stdout, stderr|
    stdout.each { |line|
      if line =~ /^ii\s+#{Regexp.escape(pkg)}\s+/
        return true
      end
    }
  }

  false
end

.parse(pkgdesc, options = {}) ⇒ Object 



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# File 'lib/xs/apt_cache.rb', line 2

def self.parse(pkgdesc, options = {})
  if pkgdesc =~ /([\w\-\_\.\+]+)\s-\s(.+)$/
    pkgname = $1
    description = $2
    pattern = options[:pattern]

    if options[:complete] or options[:section]
      return AptCache.show(pkgname, options)
    elsif options[:description]
      return AptCache.show(pkgname, options) if description =~ /#{pattern}/
    else
      return AptCache.show(pkgname, options) if pkgname =~ /#{pattern}/
    end
  end

  false
end

.show(pkg, options) ⇒ Object 



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# File 'lib/xs/apt_cache.rb', line 20

def self.show(pkg, options)
  compact = options[:compact]

  Open3.popen3("apt-cache show #{pkg}") { |stdin, stdout, stderr|
    hash = {}
    stdout.each { |line|
      if line =~ /([\w\-]+):\s(.+)$/
        hash[$1.downcase.to_sym] = $2
      end
    }

    if hash.empty?
        puts "FAILED: #{pkg}"
    end

    if options[:section]
        return if not hash[:section] =~ /#{options[:pattern]}/
    end

    installed = AptCache.installed?(pkg)

    if not compact
      print " \033[92m*\033[00m #{hash[:section]}/\033[01m#{hash[:package]}\033[00m  "
      if installed
        puts "[\033[01;32mINSTALLED\033[00m]"
      else
        puts ""
      end
      puts "     \033[32mVersion:\033[00m \033[96m#{hash[:version]}\033[00m"

      if hash.has_key? :homepage
        puts "     \033[32mHomepage:\033[00m #{hash[:homepage]}"
      end

      puts "     \033[32mDescription:\033[00m #{hash[:description]}"
      puts "     \033[32mDownload size:\033[00m #{((hash[:size].to_i + 1023) / 1024)} KiB"
    else
      print " \033[92m*\033[00m #{hash[:section]}/\033[01m#{hash[:package]}\033[00m (\033[32m#{hash[:version]}\033[00m): #{hash[:description]} "
      if installed
        print "[\033[01;32mINSTALLED\033[00m]"
      else
        print ""
      end
    end
    puts ""
    return true
  }

  false
end