69 lines
2.2 KiB
Ruby
69 lines
2.2 KiB
Ruby
require 'pathname'
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module Rails
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module AppRailsLoader
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RUBY = File.join(*RbConfig::CONFIG.values_at("bindir", "ruby_install_name")) + RbConfig::CONFIG["EXEEXT"]
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EXECUTABLES = ['bin/rails', 'script/rails']
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def self.exec_app_rails
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cwd = Dir.pwd
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exe = find_executable
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exe ||= find_executable_in_parent_path
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return unless exe
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contents = File.read(exe)
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# This is the Rails executable, let's use it
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if contents =~ /(APP|ENGINE)_PATH/
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exec RUBY, exe, *ARGV if find_executable
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Dir.chdir("..") do
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# Recurse in a chdir block: if the search fails we want to be sure
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# the application is generated in the original working directory.
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exec_app_rails unless cwd == Dir.pwd
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end
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# This is a Bundler binstub. Stop and explain how to upgrade.
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elsif exe =~ /bin\/rails$/ && contents =~ /This file was generated by Bundler/
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$stderr.puts <<-end_bin_upgrade_warning
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Looks like your app's ./bin/rails is a stub that was generated by Bundler.
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In Rails 4, your app's bin/ directory contains executables that are versioned
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like any other source code, rather than stubs that are generated on demand.
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Here's how to upgrade:
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bundle config --delete bin # Turn off Bundler's stub generator
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rake rails:update:bin # Use the new Rails 4 executables
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git add bin # Add bin/ to source control
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You may need to remove bin/ from your .gitignore as well.
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When you install a gem whose executable you want to use in your app,
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generate it and add it to source control:
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bundle binstubs some-gem-name
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git add bin/new-executable
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end_bin_upgrade_warning
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Object.const_set(:APP_PATH, File.expand_path('config/application', Dir.pwd))
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require File.expand_path('../boot', APP_PATH)
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require 'rails/commands'
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end
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rescue SystemCallError
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# could not chdir, no problem just return
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end
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def self.find_executable
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EXECUTABLES.find { |exe| File.exists?(exe) }
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end
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def self.find_executable_in_parent_path(path = Pathname.new(Dir.pwd).parent)
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EXECUTABLES.find do |exe|
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File.exists?(exe) || !path.root? && find_executable_in_parent_path(path.parent)
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end
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end
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end
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end
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