Remove FormulaInstaller.prevent_build_flags

Library/Homebrew/cmd/install.rb

@@ -176,7 +176,15 @@ module Homebrew
 
     # if the user's flags will prevent bottle only-installations when no
     # developer tools are available, we need to stop them early on
-    FormulaInstaller.prevent_build_flags(args)
+    unless DevelopmentTools.installed?
+      build_flags = []
+
+      build_flags << "--HEAD" if args.HEAD?
+      build_flags << "--build-bottle" if args.build_bottle?
+      build_flags << "--build-from-source" if args.build_from_source?
+
+      raise BuildFlagsError.new(build_flags, bottled: formulae.all?(&:bottled?)) if build_flags.present?
+    end
 
     installed_formulae = []
 

Library/Homebrew/cmd/reinstall.rb

@@ -81,13 +81,15 @@ module Homebrew
   def reinstall
     args = reinstall_args.parse
 
-    FormulaInstaller.prevent_build_flags(args)
-
-    Install.perform_preinstall_checks
-
     formulae, casks = args.named.to_formulae_and_casks(method: :resolve)
                           .partition { |o| o.is_a?(Formula) }
 
+    if args.build_from_source? && !DevelopmentTools.installed?
+      raise BuildFlagsError.new(["--build-from-source"], bottled: formulae.all?(&:bottled?))
+    end
+
+    Install.perform_preinstall_checks
+
     formulae.each do |formula|
       if formula.pinned?
         onoe "#{formula.full_name} is pinned. You must unpin it to reinstall."

Library/Homebrew/cmd/upgrade.rb

@@ -115,7 +115,9 @@ module Homebrew
   def upgrade_outdated_formulae(formulae, args:)
     return false if args.cask?
 
-    FormulaInstaller.prevent_build_flags(args)
+    if args.build_from_source? && !DevelopmentTools.installed?
+      raise BuildFlagsError.new(["--build-from-source"], bottled: formulae.all?(&:bottled?))
+    end
 
     Install.perform_preinstall_checks
 

Library/Homebrew/formula_installer.rb

@@ -115,25 +115,6 @@ class FormulaInstaller
     @installed = Set.new
   end
 
-  # When no build tools are available and build flags are passed through ARGV,
-  # it's necessary to interrupt the user before any sort of installation
-  # can proceed. Only raises when the user has no developer tools.
-  def self.prevent_build_flags(args)
-    return if DevelopmentTools.installed?
-
-    build_flags = []
-
-    build_flags << "--HEAD" if args.HEAD?
-    build_flags << "--universal" if args.universal?
-    build_flags << "--build-bottle" if args.build_bottle?
-    build_flags << "--build-from-source" if args.build_from_source?
-
-    return if build_flags.empty?
-
-    all_bottled = args.named.to_formulae.all?(&:bottled?)
-    raise BuildFlagsError.new(build_flags, bottled: all_bottled)
-  end
-
   sig { returns(T::Boolean) }
   def build_from_source?
     @build_from_source_formulae.include?(formula.full_name)