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require "erb"
require "yaml"
require "optparse"
require "rails/commands/console_helper"
module Rails
class DBConsole
include ConsoleHelper
attr_reader :arguments
class << self
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
set_options_env(arguments, options)
end
end
def initialize(arguments = ARGV)
@arguments = arguments
end
def start
options = self.class.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" => "--ssl-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
Rails.respond_to?(:env) ? Rails.env : super
end
protected
def configurations
require APP_PATH
ActiveRecord::Base.configurations = Rails.application.config.database_configuration
ActiveRecord::Base.configurations
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
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