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

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