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Add a comment for dirname vs __dir__ usage

This commit is contained in:
Xavier Noria 2024-06-24 10:35:43 +02:00
parent 5f5aee9aca
commit de4d874474
1 changed files with 4 additions and 0 deletions
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4
actioncable/lib/action_cable.rb
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@ -27,7 +27,11 @@ require "active_support"
require "active_support/rails"
require "zeitwerk"
# We compute lib this way instead of using __dir__ because __dir__ gives a real
# path, while __FILE__ honors symlinks. If the gem is stored under a symlinked
# directory, this matters.
lib = File.dirname(__FILE__)
Zeitwerk::Loader.for_gem.tap do |loader|
loader.ignore(
"#{lib}/rails", # Contains generators, templates, docs, etc.