vendor/rails/railties/lib/commands/dbconsole.rb

   1 require 'erb'
   2 require 'yaml'
   3 require 'optparse'
   4
   5 include_password = false
   6 options = {}
   7
   8 OptionParser.new do |opt|
   9   opt.banner = "Usage: dbconsole [options] [environment]"
  10   opt.on("-p", "--include-password", "Automatically provide the password from database.yml") do |v|
  11     include_password = true
  12   end
  13
  14   opt.on("--mode [MODE]", ['html', 'list', 'line', 'column'],
  15     "Automatically put the sqlite3 database in the specified mode (html, list, line, column).") do |mode|
  16       options['mode'] = mode
  17   end
  18
  19   opt.on("-h", "--header") do |h|
  20     options['header'] = h
  21   end
  22
  23   opt.parse!(ARGV)
  24   abort opt.to_s unless (0..1).include?(ARGV.size)
  25 end
  26
  27 env = ARGV.first || ENV['RAILS_ENV'] || 'development'
  28 unless config = YAML::load(ERB.new(IO.read(RAILS_ROOT + "/config/database.yml")).result)[env]
  29   abort "No database is configured for the environment '#{env}'"
  30 end
  31
  32
  33 def find_cmd(*commands)
  34   dirs_on_path = ENV['PATH'].to_s.split(File::PATH_SEPARATOR)
  35   commands += commands.map{|cmd| "#{cmd}.exe"} if RUBY_PLATFORM =~ /win32/
  36   commands.detect do |cmd|
  37     dirs_on_path.detect do |path|
  38       File.executable? File.join(path, cmd)
  39     end
  40   end || abort("Couldn't find database client: #{commands.join(', ')}. Check your $PATH and try again.")
  41 end
  42
  43 case config["adapter"]
  44 when "mysql"
  45   args = {
  46     'host'      => '--host',
  47     'port'      => '--port',
  48     'socket'    => '--socket',
  49     'username'  => '--user',
  50     'encoding'  => '--default-character-set'
  51   }.map { |opt, arg| "#{arg}=#{config[opt]}" if config[opt] }.compact
  52
  53   if config['password'] && include_password
  54     args << "--password=#{config['password']}"
  55   elsif config['password'] && !config['password'].to_s.empty?
  56     args << "-p"
  57   end
  58
  59   args << config['database']
  60
  61   exec(find_cmd('mysql', 'mysql5'), *args)
  62
  63 when "postgresql"
  64   ENV['PGUSER']     = config["username"] if config["username"]
  65   ENV['PGHOST']     = config["host"] if config["host"]
  66   ENV['PGPORT']     = config["port"].to_s if config["port"]
  67   ENV['PGPASSWORD'] = config["password"].to_s if config["password"] && include_password
  68   exec(find_cmd('psql'), config["database"])
  69
  70 when "sqlite"
  71   exec(find_cmd('sqlite'), config["database"])
  72
  73 when "sqlite3"
  74   args = []
  75
  76   args << "-#{options['mode']}" if options['mode']
  77   args << "-header" if options['header']
  78   args << config['database']
  79
  80   exec(find_cmd('sqlite3'), *args)
  81 else
  82   abort "Unknown command-line client for #{config['database']}. Submit a Rails patch to add support!"
  83 end