/usr/lib/ruby/vendor_ruby/rails/app_rails_loader.rb is in ruby-railties 2:4.2.6-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 | require 'pathname'
module Rails
module AppRailsLoader # :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 4, 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
rake rails:update:bin # Use the new Rails 4 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_rails
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) and 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
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