Class: Gem::Commands::DumpCommand

Inherits:
Gem::Command
  • Object
show all
Defined in:
lib/rubygems/commands/dump_command.rb

Constant Summary collapse

VERSION = 
"0.0.1"
FNAME = 
"/.gemfile"

Instance Method Summary collapse

Constructor Details

#initialize ⇒ DumpCommand

Returns a new instance of DumpCommand.



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# File 'lib/rubygems/commands/dump_command.rb', line 9

def initialize
  super("dump", "\"Dump\" all your gems to a ~/.gemfile",
        :version => Gem::Requirement.default)
end

Instance Method Details

#arguments ⇒ Object

:nodoc:



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# File 'lib/rubygems/commands/dump_command.rb', line 14

def arguments # :nodoc:
  'FILE dumps to another file'
end

#defaults_str ⇒ Object

:nodoc:



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# File 'lib/rubygems/commands/dump_command.rb', line 18

def defaults_str # :nodoc:
  "--version='>= 0'"
end

#execute ⇒ Object 



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# File 'lib/rubygems/commands/dump_command.rb', line 26

def execute
  path ||= ENV['HOME']
  unless path
    puts "No path to write.."; return
  end
  gems = `gem list --no-version`.split("\n")
  all = nil
  unless File.exists?(fname = path + FNAME)
    file = File.new(fname, "w+")
    file.puts "# Mygems dump #{Time.now}. #{gems.length} gems."
    file.puts
  else
    file = File.new(fname, "a+")
    all = file.readlines.map{ |l| l.match(/"([^\"]*)"/)[1] rescue nil }.reject(&:nil?)
    gems -= all
    return if gems.empty?
    file.puts
    file.puts "# New gems #{Time.now}."
    file.puts
  end
  for gem in gems
    file.puts "gem \"#{gem}\""
  end
  file.close
  puts "Gemfile written. #{fname}"
end

#usage ⇒ Object

:nodoc:



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# File 'lib/rubygems/commands/dump_command.rb', line 22

def usage # :nodoc:
  "#{program_name} [PATH]"
end