Skip to content

Document gemspecs must be deterministic #9321

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
hsbt merged 1 commit into from
Feb 9, 2026
Merged

Document gemspecs must be deterministic #9321

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
9 changes: 9 additions & 0 deletions lib/rubygems/specification.rb
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -34,6 +34,15 @@
# Starting in RubyGems 2.0, a Specification can hold arbitrary
# metadata. See #metadata for restrictions on the format and size of metadata
# items you may add to a specification.
#
# Specifications must be deterministic, as in the example above. For instance,
# you cannot define attributes conditionally:
#
# # INVALID: do not do this.
# unless RUBY_ENGINE == "jruby"
# s.extensions << "ext/example/extconf.rb"
# end
#

class Gem::Specification < Gem::BasicSpecification
# REFACTOR: Consider breaking out this version stuff into a separate
Expand Down