install, installed_dependents, uninstall: typed: strict

[cho-m]

• Have you followed the guidelines in our Contributing document?
• Have you checked to ensure there aren't other open Pull Requests for the same change?
• Have you added an explanation of what your changes do and why you'd like us to include them?
• Have you written new tests for your changes? Here's an example.
• Have you successfully run brew lgtm (style, typechecking and tests) with your changes locally?

---

Part of

• Use Sorbet typed: strict in all (non-package) files in Homebrew organisation #17297

[Copilot]

Pull request overview

This PR upgrades several Ruby files to use Sorbet's typed: strict mode as part of the ongoing effort to improve type safety in the Homebrew codebase. The changes primarily involve adding proper type signatures (sig blocks) to methods and adding type annotations to instance variables and attributes.

• Converts uninstall.rb, installed_dependents.rb, and install.rb from typed: true to typed: strict
• Adds comprehensive method signatures with proper parameter and return types
• Adds type annotations to attributes and instance variables to satisfy strict mode requirements

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
Library/Homebrew/uninstall.rb	Upgraded to typed: strict and added signatures for uninstall_kegs, handle_unsatisfied_dependents, check_for_dependents!, and rm_pin methods
Library/Homebrew/keg_relocate.rb	Added T.must(first) to handle potential nil from array destructuring in replace_text_in_files
Library/Homebrew/keg.rb	Added type annotations to attr_reader declarations for name (String) and path, linked_keg_record, opt_record (Pathname), plus signature for rack method
Library/Homebrew/installed_dependents.rb	Upgraded to typed: strict and added signature for find_some_installed_dependents with proper nilable tuple return type
Library/Homebrew/install.rb	Upgraded to typed: strict, added type annotations to instance variables using T.let, and added signature for print_dry_run_dependencies (though with an incorrect block return type)
Library/Homebrew/extend/os/mac/keg.rb	Changed from File.lchmod to file.lchmod for stylistic consistency

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[MikeMcQuaid]

Thanks again!