dev-cmd/create: add types

Signed-off-by: Michael Cho <michael@michaelcho.dev>

Library/Homebrew/dev-cmd/create.rb

@@ -70,6 +70,7 @@ module Homebrew
   end
 
   # Create a formula from a tarball URL.
+  sig { void }
   def create
     args = create_args.parse
 
@@ -82,6 +83,7 @@ module Homebrew
     exec_editor path
   end
 
+  sig { params(args: CLI::Args).returns(Pathname) }
   def create_cask(args:)
     url = args.named.first
     name = if args.set_name.blank?
@@ -91,7 +93,7 @@ module Homebrew
     else
       args.set_name
     end
-    token = Cask::Utils.token_from(name)
+    token = Cask::Utils.token_from(T.must(name))
 
     cask_tap = Tap.fetch(args.tap || "homebrew/cask")
     raise TapUnavailableError, cask_tap.name unless cask_tap.installed?
@@ -101,7 +103,7 @@ module Homebrew
     raise Cask::CaskAlreadyCreatedError, token if cask_path.exist?
 
     version = if args.set_version
-      Version.new(args.set_version)
+      Version.new(T.must(args.set_version))
     else
       Version.detect(url.gsub(token, "").gsub(/x86(_64)?/, ""))
     end
@@ -153,6 +155,7 @@ module Homebrew
     cask_path
   end
 
+  sig { params(args: CLI::Args).returns(Pathname) }
   def create_formula(args:)
     mode = if args.autotools?
       :autotools
@@ -229,6 +232,7 @@ module Homebrew
     path
   end
 
+  sig { returns(T.nilable(String)) }
   def __gets
     gots = $stdin.gets.chomp
     gots.empty? ? nil : gots

Library/Homebrew/formula_creator.rb

@@ -31,6 +31,7 @@ module Homebrew
       raise TapUnavailableError, @tap.name unless @tap.installed?
     end
 
+    sig { params(url: String).returns(T.nilable(String)) }
     def self.name_from_url(url)
       stem = Pathname.new(url).stem
       # special cases first
@@ -47,6 +48,7 @@ module Homebrew
       end
     end
 
+    sig { void }
     def parse_url
       @name = FormulaCreator.name_from_url(@url) if @name.blank?
       odebug "name_from_url: #{@name}"
@@ -65,6 +67,7 @@ module Homebrew
       end
     end
 
+    sig { returns(Pathname) }
     def write_formula!
       raise ArgumentError, "name is blank!" if @name.blank?
       raise ArgumentError, "tap is blank!" if @tap.blank?