aboutsummaryrefslogtreecommitdiffstats
path: root/railties/lib/rails/commands/dbconsole.rb
blob: 3b22b582cf5142293412f3b10ab518a0dff508fe (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
require 'erb'
require 'yaml'
require 'optparse'

module Rails
  class DBConsole
    attr_reader :arguments

    def self.start
      new.start
    end

    def initialize(arguments = ARGV)
      @arguments = arguments
    end

    def start
      options = parse_arguments(arguments)
      ENV['RAILS_ENV'] = options[:environment] || environment

      case config["adapter"]
      when /^(jdbc)?mysql/
        args = {
          'host'      => '--host',
          'port'      => '--port',
          'socket'    => '--socket',
          'username'  => '--user',
          'encoding'  => '--default-character-set',
          'sslca'     => '--ssl-ca',
          'sslcert'   => '--ssl-cert',
          'sslcapath' => '--ssl-capath',
          'sslcipher' => '--ssh-cipher',
          'sslkey'    => '--ssl-key'
        }.map { |opt, arg| "#{arg}=#{config[opt]}" if config[opt] }.compact

        if config['password'] && options['include_password']
          args << "--password=#{config['password']}"
        elsif config['password'] && !config['password'].to_s.empty?
          args << "-p"
        end

        args << config['database']

        find_cmd_and_exec(['mysql', 'mysql5'], *args)

      when /^postgres|^postgis/
        ENV['PGUSER']     = config["username"] if config["username"]
        ENV['PGHOST']     = config["host"] if config["host"]
        ENV['PGPORT']     = config["port"].to_s if config["port"]
        ENV['PGPASSWORD'] = config["password"].to_s if config["password"] && options['include_password']
        find_cmd_and_exec('psql', config["database"])

      when "sqlite3"
        args = []

        args << "-#{options['mode']}" if options['mode']
        args << "-header" if options['header']
        args << File.expand_path(config['database'], Rails.respond_to?(:root) ? Rails.root : nil)

        find_cmd_and_exec('sqlite3', *args)

      when "oracle", "oracle_enhanced"
        logon = ""

        if config['username']
          logon = config['username']
          logon << "/#{config['password']}" if config['password'] && options['include_password']
          logon << "@#{config['database']}" if config['database']
        end

        find_cmd_and_exec('sqlplus', logon)

      when "sqlserver"
        args = []

        args += ["-D", "#{config['database']}"] if config['database']
        args += ["-U", "#{config['username']}"] if config['username']
        args += ["-P", "#{config['password']}"] if config['password']

        if config['host']
          host_arg = "#{config['host']}"
          host_arg << ":#{config['port']}" if config['port']
          args += ["-S", host_arg]
        end

        find_cmd_and_exec("sqsh", *args)

      else
        abort "Unknown command-line client for #{config['database']}."
      end
    end

    def config
      @config ||= begin
        if configurations[environment].blank?
          raise ActiveRecord::AdapterNotSpecified, "'#{environment}' database is not configured. Available configuration: #{configurations.inspect}"
        else
          configurations[environment]
        end
      end
    end

    def environment
      if Rails.respond_to?(:env)
        Rails.env
      else
        ENV["RAILS_ENV"] || ENV["RACK_ENV"] || "development"
      end
    end

    protected

    def configurations
      require APP_PATH
      ActiveRecord::Base.configurations = Rails.application.config.database_configuration
      ActiveRecord::Base.configurations
    end

    def parse_arguments(arguments)
      options = {}

      OptionParser.new do |opt|
        opt.banner = "Usage: rails dbconsole [environment] [options]"
        opt.on("-p", "--include-password", "Automatically provide the password from database.yml") do |v|
          options['include_password'] = true
        end

        opt.on("--mode [MODE]", ['html', 'list', 'line', 'column'],
          "Automatically put the sqlite3 database in the specified mode (html, list, line, column).") do |mode|
            options['mode'] = mode
        end

        opt.on("--header") do |h|
          options['header'] = h
        end

        opt.on("-h", "--help", "Show this help message.") do
          puts opt
          exit
        end

        opt.on("-e", "--environment=name", String,
          "Specifies the environment to run this console under (test/development/production).",
          "Default: development"
        ) { |v| options[:environment] = v.strip }

        opt.parse!(arguments)
        abort opt.to_s unless (0..1).include?(arguments.size)
      end

      if arguments.first && arguments.first[0] != '-'
        env = arguments.first
        if available_environments.include? env
          options[:environment] = env
        else
          options[:environment] = %w(production development test).detect {|e| e =~ /^#{env}/} || env
        end
      end

      options
    end

    def available_environments
      Dir['config/environments/*.rb'].map { |fname| File.basename(fname, '.*') }
    end

    def find_cmd_and_exec(commands, *args)
      commands = Array(commands)

      dirs_on_path = ENV['PATH'].to_s.split(File::PATH_SEPARATOR)
      unless (ext = RbConfig::CONFIG['EXEEXT']).empty?
        commands = commands.map{|cmd| "#{cmd}#{ext}"}
      end

      full_path_command = nil
      found = commands.detect do |cmd|
        dirs_on_path.detect do |path|
          full_path_command = File.join(path, cmd)
          File.file?(full_path_command) && File.executable?(full_path_command)
        end
      end

      if found
        exec full_path_command, *args
      else
        abort("Couldn't find database client: #{commands.join(', ')}. Check your $PATH and try again.")
      end
    end
  end
end