Enable typing in a few more files

Library/Homebrew/cask/metadata.rb

@@ -1,4 +1,4 @@
-# typed: false
+# typed: true
 # frozen_string_literal: true
 
 module Cask

Library/Homebrew/cask/metdata.rbi

@@ -0,0 +1,7 @@
+# typed: strict
+
+module Cask
+  module Metadata
+    requires_ancestor { Cask }
+  end
+end

Library/Homebrew/cask/url.rbi

@@ -1,5 +1,4 @@
 # typed: strict
-# typed: false
 
 class URL
   include Kernel

Library/Homebrew/diagnostic.rb

@@ -1,4 +1,4 @@
-# typed: false
+# typed: true
 # frozen_string_literal: true
 
 require "keg"
@@ -31,7 +31,7 @@ module Homebrew
 
     def self.checks(type, fatal: true)
       @checks ||= Checks.new
-      failed = false
+      failed = T.let(false, T::Boolean)
       @checks.public_send(type).each do |check|
         out = @checks.public_send(check)
         next if out.nil?
@@ -64,6 +64,7 @@ module Homebrew
         end
       end
 
+      sig { params(list: T::Array[String], string: String).returns(String) }
       def inject_file_list(list, string)
         list.reduce(string.dup) { |acc, elem| acc << "  #{elem}\n" }
             .freeze
@@ -642,10 +643,11 @@ module Homebrew
         EOS
       end
 
+      sig { returns(T.nilable(String)) }
       def check_git_status
         return unless Utils::Git.available?
 
-        message = nil
+        message = T.let(nil, T.nilable(String))
 
         repos = {
           "Homebrew/brew"          => HOMEBREW_REPOSITORY,

Library/Homebrew/formula_assertions.rb

@@ -1,4 +1,4 @@
-# typed: false
+# typed: true
 # frozen_string_literal: true
 
 module Homebrew

Library/Homebrew/formula_assertions.rbi

@@ -0,0 +1,5 @@
+# typed: strict
+
+module Homebrew::Assertions
+  include Kernel
+end

Library/Homebrew/keg_relocate.rb

@@ -1,4 +1,4 @@
-# typed: false
+# typed: true
 # frozen_string_literal: true
 
 class Keg
@@ -44,7 +44,7 @@ class Keg
         key.is_a?(String) ? key.length : 999
       end.reverse
 
-      any_changed = false
+      any_changed = T.let(nil, T.nilable(String))
       sorted_keys.each do |key|
         changed = text.gsub!(key, replacements[key])
         any_changed ||= changed
@@ -144,7 +144,7 @@ class Keg
   def replace_text_in_files(relocation, files: nil)
     files ||= text_files | libtool_files
 
-    changed_files = []
+    changed_files = T.let([], Array)
     files.map(&path.method(:join)).group_by { |f| f.stat.ino }.each_value do |first, *rest|
       s = first.open("rb", &:read)
 
@@ -179,11 +179,11 @@ class Keg
         binary = File.binread file
         odebug "Replacing build prefix in: #{file}"
         binary_strings = binary.split(/#{NULL_BYTE}/o, -1)
-        match_indices = binary_strings.each_index.select { |i| binary_strings[i].include?(old_prefix) }
+        match_indices = binary_strings.each_index.select { |i| binary_strings.fetch(i).include?(old_prefix) }
 
         # Only perform substitution on strings which match prefix regex.
         match_indices.each do |i|
-          s = binary_strings[i]
+          s = binary_strings.fetch(i)
           binary_strings[i] = s.gsub(old_prefix, new_prefix)
                                .ljust(s.size, NULL_BYTE)
         end

Library/Homebrew/language/python.rb

@@ -1,4 +1,4 @@
-# typed: false
+# typed: true
 # frozen_string_literal: true
 
 module Language

Library/Homebrew/language/python.rbi

@@ -0,0 +1,11 @@
+# typed: strict
+
+module Language::Python
+  module Shebang
+    include Kernel
+  end
+
+  module Virtualenv
+    requires_ancestor { Formula }
+  end
+end

Library/Homebrew/test.rb

@@ -1,4 +1,4 @@
-# typed: false
+# typed: true
 # frozen_string_literal: true
 
 raise "#{__FILE__} must not be loaded via `require`." if $PROGRAM_NAME != __FILE__
@@ -38,12 +38,10 @@ begin
   formula.extend(Debrew::Formula) if args.debug?
 
   ENV.extend(Stdenv)
-  T.cast(ENV, Stdenv).setup_build_environment(formula: formula, testing_formula: true)
+  ENV.setup_build_environment(formula: formula, testing_formula: true)
 
   # tests can also return false to indicate failure
-  run_test = proc do
-    raise "test returned false" if formula.run_test(keep_tmp: args.keep_tmp?) == false
-  end
+  run_test = proc { |_ = nil| raise "test returned false" if formula.run_test(keep_tmp: args.keep_tmp?) == false }
   if args.debug? # --debug is interactive
     run_test.call
   else

Library/Homebrew/unlink.rb

@@ -1,12 +1,10 @@
-# typed: false
+# typed: true
 # frozen_string_literal: true
 
 module Homebrew
   # Provides helper methods for unlinking formulae and kegs with consistent output.
   module Unlink
-    module_function
-
-    def unlink_versioned_formulae(formula, verbose: false)
+    def self.unlink_versioned_formulae(formula, verbose: false)
       formula.versioned_formulae
              .select(&:keg_only?)
              .select(&:linked?)
@@ -18,7 +16,7 @@ module Homebrew
       end
     end
 
-    def unlink(keg, dry_run: false, verbose: false)
+    def self.unlink(keg, dry_run: false, verbose: false)
       options = { dry_run: dry_run, verbose: verbose }
 
       keg.lock do

Library/Homebrew/utils/analytics.rb

@@ -1,4 +1,4 @@
-# typed: false
+# typed: true
 # frozen_string_literal: true
 
 require "context"
@@ -42,7 +42,6 @@ module Utils
             --data av=#{HOMEBREW_VERSION}
           ]
           metadata.each do |key, value|
-            next unless key
             next unless value
 
             key = ERB::Util.url_encode key
@@ -146,13 +145,13 @@ module Utils
         report_influx(measurement, package_and_options, on_request, additional_tags_influx)
       end
 
-      sig { params(exception: Exception).void }
+      sig { params(exception: BuildError).void }
       def report_build_error(exception)
         report_google_build_error(exception)
         report_influx_error(exception)
       end
 
-      sig { params(exception: Exception).void }
+      sig { params(exception: BuildError).void }
       def report_google_build_error(exception)
         return if not_this_run? || disabled?
 
@@ -165,10 +164,10 @@ module Utils
         else
           formula_full_name
         end
-        report_google_event("BuildError", package_and_options)
+        report_google_event(:BuildError, package_and_options)
       end
 
-      sig { params(exception: Exception).void }
+      sig { params(exception: BuildError).void }
       def report_influx_error(exception)
         return if not_this_run? || disabled?
 

Library/Homebrew/utils/github/api.rb

@@ -1,4 +1,4 @@
-# typed: false
+# typed: true
 # frozen_string_literal: true
 
 require "tempfile"
@@ -214,7 +214,7 @@ module GitHub
 
       headers_tmpfile = Tempfile.new("github_api_headers", HOMEBREW_TEMP)
       begin
-        if data
+        if data_tmpfile
           data_tmpfile.write data
           data_tmpfile.close
           args += ["--data", "@#{data_tmpfile.path}"]
@@ -222,7 +222,7 @@ module GitHub
           args += ["--request", request_method.to_s] if request_method
         end
 
-        args += ["--dump-header", headers_tmpfile.path]
+        args += ["--dump-header", T.must(headers_tmpfile.path)]
 
         output, errors, status = curl_output("--location", url.to_s, *args, secrets: [token])
         output, _, http_code = output.rpartition("\n")

Library/Homebrew/utils/github/api.rbi

@@ -0,0 +1,5 @@
+# typed: strict
+
+module GitHub::API
+  include Kernel
+end

Library/Homebrew/utils/repology.rb

@@ -1,4 +1,4 @@
-# typed: false
+# typed: true
 # frozen_string_literal: true
 
 require "utils/curl"

Library/Homebrew/utils/repology.rbi

@@ -0,0 +1,6 @@
+# typed: strict
+
+module Repology
+  include Kernel
+  requires_ancestor { Utils::Curl }
+end