dev-cmd/bottle: Refactor setup_tar_and_args! to extend/os

Library/Homebrew/dev-cmd/bottle.rb

@@ -231,26 +231,29 @@ module Homebrew
     system "/usr/bin/sudo", "--non-interactive", "/usr/sbin/purge"
   end
 
-  def self.setup_tar_and_args!(args, mtime)
+  sig { returns(T::Array[String]) }
-    # TODO: Refactor and move to extend/os
+  def self.tar_args
-    # Without --only-json-tab bottles are never reproducible
+    [].freeze
-    tar_args =
+  end
-      OS.mac? ? ["--no-mac-metadata", "--no-acls", "--no-xattrs"].freeze : ["--no-acls", "--no-xattrs"].freeze # rubocop:disable Homebrew/MoveToExtendOS
-    default_tar_args = ["tar", tar_args].freeze
-    return default_tar_args unless args.only_json_tab?
 
-    # Ensure tar is set up for reproducibility.
+  sig { params(mtime: String).returns(T::Array[String]) }
+  def self.reproducible_gnutar_args(mtime)
+    # Ensure gnu tar is set up for reproducibility.
     # https://reproducible-builds.org/docs/archives/
-    gnutar_args = [
+    [
       "--format", "pax", "--owner", "0", "--group", "0", "--sort", "name", "--mtime=#{mtime}",
       # Set exthdr names to exclude PID (for GNU tar <1.33). Also don't store atime and ctime.
       "--pax-option", "globexthdr.name=/GlobalHead.%n,exthdr.name=%d/PaxHeaders/%f,delete=atime,delete=ctime"
     ].freeze
+  end
 
-    # TODO: Refactor and move to extend/os
+  sig { params(args: T.untyped, mtime: String).returns([String, T::Array[String]]) }
-    return ["tar", gnutar_args].freeze if OS.linux? # rubocop:disable Homebrew/MoveToExtendOS
+  def self.setup_tar_and_args!(args, mtime)
+    # Without --only-json-tab bottles are never reproducible
+    default_tar_args = ["tar", tar_args].freeze
+    return default_tar_args unless args.only_json_tab?
 
-    # Use gnu-tar on macOS as it can be set up for reproducibility better than libarchive.
+    # Use gnu-tar as it can be set up for reproducibility better than libarchive.
     begin
       gnu_tar = Formula["gnu-tar"]
     rescue FormulaUnavailableError
@@ -259,7 +262,7 @@ module Homebrew
 
     ensure_formula_installed!(gnu_tar, reason: "bottling")
 
-    ["#{gnu_tar.opt_bin}/gtar", gnutar_args].freeze
+    ["#{gnu_tar.opt_bin}/gtar", reproducible_gnutar_args(mtime)].freeze
   end
 
   def self.formula_ignores(formula)
@@ -802,3 +805,5 @@ module Homebrew
     checksums
   end
 end
+
+require "extend/os/dev-cmd/bottle"

Library/Homebrew/extend/os/dev-cmd/bottle.rb

@@ -0,0 +1,8 @@
+# typed: strict
+# frozen_string_literal: true
+
+if OS.mac?
+  require "extend/os/mac/dev-cmd/bottle"
+elsif OS.linux?
+  require "extend/os/linux/dev-cmd/bottle"
+end

Library/Homebrew/extend/os/linux/dev-cmd/bottle.rb

@@ -0,0 +1,12 @@
+# typed: true
+# frozen_string_literal: true
+
+module Homebrew
+  sig { params(args: T.untyped, mtime: String).returns([String, T::Array[String]]) }
+  def self.setup_tar_and_args!(args, mtime)
+    # Without --only-json-tab bottles are never reproducible
+    return ["tar", tar_args].freeze unless args.only_json_tab?
+
+    ["tar", reproducible_gnutar_args(mtime)].freeze
+  end
+end

Library/Homebrew/extend/os/mac/dev-cmd/bottle.rb

@@ -0,0 +1,9 @@
+# typed: true
+# frozen_string_literal: true
+
+module Homebrew
+  sig { returns(T::Array[String]) }
+  def self.tar_args
+    ["--no-mac-metadata", "--no-acls", "--no-xattrs"].freeze
+  end
+end