64 lines
2 KiB
Ruby
64 lines
2 KiB
Ruby
require "pathname"
|
|
require "rails/version"
|
|
|
|
module Rails
|
|
module AppLoader # :nodoc:
|
|
extend self
|
|
|
|
RUBY = Gem.ruby
|
|
EXECUTABLES = ["bin/rails", "script/rails"]
|
|
BUNDLER_WARNING = <<EOS
|
|
Looks like your app's ./bin/rails is a stub that was generated by Bundler.
|
|
|
|
In Rails #{Rails::VERSION::MAJOR}, your app's bin/ directory contains executables that are versioned
|
|
like any other source code, rather than stubs that are generated on demand.
|
|
|
|
Here's how to upgrade:
|
|
|
|
bundle config --delete bin # Turn off Bundler's stub generator
|
|
rails app:update:bin # Use the new Rails 5 executables
|
|
git add bin # Add bin/ to source control
|
|
|
|
You may need to remove bin/ from your .gitignore as well.
|
|
|
|
When you install a gem whose executable you want to use in your app,
|
|
generate it and add it to source control:
|
|
|
|
bundle binstubs some-gem-name
|
|
git add bin/new-executable
|
|
|
|
EOS
|
|
|
|
def exec_app
|
|
original_cwd = Dir.pwd
|
|
|
|
loop do
|
|
if exe = find_executable
|
|
contents = File.read(exe)
|
|
|
|
if contents =~ /(APP|ENGINE)_PATH/
|
|
exec RUBY, exe, *ARGV
|
|
break # non reachable, hack to be able to stub exec in the test suite
|
|
elsif exe.end_with?("bin/rails") && contents.include?("This file was generated by Bundler")
|
|
$stderr.puts(BUNDLER_WARNING)
|
|
Object.const_set(:APP_PATH, File.expand_path("config/application", Dir.pwd))
|
|
require File.expand_path("../boot", APP_PATH)
|
|
require "rails/commands"
|
|
break
|
|
end
|
|
end
|
|
|
|
# If we exhaust the search there is no executable, this could be a
|
|
# call to generate a new application, so restore the original cwd.
|
|
Dir.chdir(original_cwd) && return if Pathname.new(Dir.pwd).root?
|
|
|
|
# Otherwise keep moving upwards in search of an executable.
|
|
Dir.chdir("..")
|
|
end
|
|
end
|
|
|
|
def find_executable
|
|
EXECUTABLES.find { |exe| File.file?(exe) }
|
|
end
|
|
end
|
|
end
|