Port Homebrew::DevCmd::Linkage

Library/Homebrew/dev-cmd/linkage.rb

@@ -1,58 +1,57 @@
-# typed: true
+# typed: strict
 # frozen_string_literal: true
 
+require "abstract_command"
 require "cache_store"
 require "linkage_checker"
 require "cli/parser"
 
 module Homebrew
-  module_function
+  module DevCmd
+    class Linkage < AbstractCommand
+      cmd_args do
+        description <<~EOS
+          Check the library links from the given <formula> kegs. If no <formula> are
+          provided, check all kegs. Raises an error if run on uninstalled formulae.
+        EOS
+        switch "--test",
+               description: "Show only missing libraries and exit with a non-zero status if any missing " \
+                            "libraries are found."
+        switch "--strict",
+               depends_on:  "--test",
+               description: "Exit with a non-zero status if any undeclared dependencies with linkage are found."
+        switch "--reverse",
+               description: "For every library that a keg references, print its dylib path followed by the " \
+                            "binaries that link to it."
+        switch "--cached",
+               description: "Print the cached linkage values stored in `HOMEBREW_CACHE`, set by a previous " \
+                            "`brew linkage` run."
 
-  sig { returns(CLI::Parser) }
-  def linkage_args
-    Homebrew::CLI::Parser.new do
-      description <<~EOS
-        Check the library links from the given <formula> kegs. If no <formula> are
-        provided, check all kegs. Raises an error if run on uninstalled formulae.
-      EOS
-      switch "--test",
-             description: "Show only missing libraries and exit with a non-zero status if any missing " \
-                          "libraries are found."
-      switch "--strict",
-             depends_on:  "--test",
-             description: "Exit with a non-zero status if any undeclared dependencies with linkage are found."
-      switch "--reverse",
-             description: "For every library that a keg references, print its dylib path followed by the " \
-                          "binaries that link to it."
-      switch "--cached",
-             description: "Print the cached linkage values stored in `HOMEBREW_CACHE`, set by a previous " \
-                          "`brew linkage` run."
-
-      named_args :installed_formula
-    end
-  end
-
-  def linkage
-    args = linkage_args.parse
-
-    CacheStoreDatabase.use(:linkage) do |db|
-      kegs = if args.named.to_default_kegs.empty?
-        Formula.installed.filter_map(&:any_installed_keg)
-      else
-        args.named.to_default_kegs
+        named_args :installed_formula
       end
-      kegs.each do |keg|
-        ohai "Checking #{keg.name} linkage" if kegs.size > 1
 
-        result = LinkageChecker.new(keg, cache_db: db)
+      sig { override.void }
+      def run
+        CacheStoreDatabase.use(:linkage) do |db|
+          kegs = if args.named.to_default_kegs.empty?
+            Formula.installed.filter_map(&:any_installed_keg)
+          else
+            args.named.to_default_kegs
+          end
+          kegs.each do |keg|
+            ohai "Checking #{keg.name} linkage" if kegs.size > 1
 
-        if args.test?
-          result.display_test_output(strict: args.strict?)
-          Homebrew.failed = true if result.broken_library_linkage?(test: true, strict: args.strict?)
-        elsif args.reverse?
-          result.display_reverse_output
-        else
-          result.display_normal_output
+            result = LinkageChecker.new(keg, cache_db: db)
+
+            if args.test?
+              result.display_test_output(strict: args.strict?)
+              Homebrew.failed = true if result.broken_library_linkage?(test: true, strict: args.strict?)
+            elsif args.reverse?
+              result.display_reverse_output
+            else
+              result.display_normal_output
+            end
+          end
         end
       end
     end

Library/Homebrew/test/dev-cmd/linkage_spec.rb

@@ -1,8 +1,9 @@
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
+require "dev-cmd/linkage"
 
-RSpec.describe "brew linkage" do
+RSpec.describe Homebrew::DevCmd::Linkage do
   it_behaves_like "parseable arguments"
 
   it "works when no arguments are provided", :integration_test do