cli: fix options handling.

Fix breaking options on taps again (second time in two weeks, sob).

To avoid doing this again: also add a test for this case (that I've
verified would have caught these cases).

Library/Homebrew/cli/args.rb

@@ -13,6 +13,10 @@ module Homebrew
 
         @processed_options = []
 
+        # Can set these because they will be overwritten by freeze_named_args!
+        # (whereas other values below will only be overwritten if passed).
+        self[:named_args] = argv.reject { |arg| arg.start_with?("-") }
+
         # Set values needed before Parser#parse has been run.
         return unless set_default_args
 
@@ -22,15 +26,24 @@ module Homebrew
         self[:HEAD?] = argv.include?("--HEAD")
         self[:devel?] = argv.include?("--devel")
         self[:universal?] = argv.include?("--universal")
-        self[:named_args] = argv.reject { |arg| arg.start_with?("-") }
       end
 
       def freeze_named_args!(named_args)
+        # Reset cache values reliant on named_args
+        @formulae = nil
+        @resolved_formulae = nil
+        @formulae_paths = nil
+        @casks = nil
+        @kegs = nil
+
         self[:named_args] = named_args
         self[:named_args].freeze
       end
 
       def freeze_processed_options!(processed_options)
+        # Reset cache values reliant on processed_options
+        @cli_args = nil
+
         @processed_options += processed_options
         @processed_options.freeze
       end

Library/Homebrew/cli/parser.rb

@@ -166,7 +166,6 @@ module Homebrew
         check_constraint_violations
         check_named_args(named_args, allow_no_named_args: allow_no_named_args)
         @args.freeze_named_args!(named_args)
-        parse_formula_options
         @args.freeze_processed_options!(@processed_options)
         Homebrew.args = @args
 
@@ -189,7 +188,21 @@ module Homebrew
       end
 
       def formula_options
-        @parse_formula_options = true
+        @args.formulae.each do |f|
+          next if f.options.empty?
+
+          f.options.each do |o|
+            name = o.flag
+            description = "`#{f.name}`: #{o.description}"
+            if name.end_with? "="
+              flag   name, description: description
+            else
+              switch name, description: description
+            end
+          end
+        end
+      rescue FormulaUnavailableError
+        []
       end
 
       def max_named(count)
@@ -228,26 +241,6 @@ module Homebrew
 
       private
 
-      def parse_formula_options
-        return unless @parse_formula_options
-
-        @args.formulae.each do |f|
-          next if f.options.empty?
-
-          f.options.each do |o|
-            name = o.flag
-            description = "`#{f.name}`: #{o.description}"
-            if name.end_with? "="
-              flag   name, description: description
-            else
-              switch name, description: description
-            end
-          end
-        end
-      rescue FormulaUnavailableError
-        []
-      end
-
       def enable_switch(*names, from:)
         names.each do |name|
           @switch_sources[option_to_name(name)] = from

Library/Homebrew/test/cmd/install_spec.rb

@@ -14,6 +14,17 @@ describe "brew install", :integration_test do
       .to output(%r{#{HOMEBREW_CELLAR}/testball1/0\.1}).to_stdout
       .and not_to_output.to_stderr
       .and be_a_success
+    expect(HOMEBREW_CELLAR/"testball1/0.1/foo/test").not_to be_a_file
+  end
+
+  it "installs formulae with options" do
+    setup_test_formula "testball1"
+
+    expect { brew "install", "testball1", "--with-foo" }
+      .to output(%r{#{HOMEBREW_CELLAR}/testball1/0\.1}).to_stdout
+      .and not_to_output.to_stderr
+      .and be_a_success
+    expect(HOMEBREW_CELLAR/"testball1/0.1/foo/test").to be_a_file
   end
 
   it "can install keg-only Formulae" do
@@ -27,6 +38,7 @@ describe "brew install", :integration_test do
       .to output(%r{#{HOMEBREW_CELLAR}/testball1/1\.0}).to_stdout
       .and not_to_output.to_stderr
       .and be_a_success
+    expect(HOMEBREW_CELLAR/"testball1/1.0/foo/test").not_to be_a_file
   end
 
   it "can install HEAD Formulae" do
@@ -59,5 +71,6 @@ describe "brew install", :integration_test do
       .to output(%r{#{HOMEBREW_CELLAR}/testball1/HEAD\-d5eb689}).to_stdout
       .and output(/Cloning into/).to_stderr
       .and be_a_success
+    expect(HOMEBREW_CELLAR/"testball1/HEAD-d5eb689/foo/test").not_to be_a_file
   end
 end