From c90e63b2998312e4c9aa029599df2c0b184faaa6 Mon Sep 17 00:00:00 2001
From: Carlo Cabrera <30379873+carlocab@users.noreply.github.com>
Date: Thu, 9 Sep 2021 22:39:35 +0800
Subject: [PATCH] os: add `uname` method

This will allow us to replace code like

    os = if OS.mac?
      "Darwin"
    else
      "Linux"
    end

with a call to `OS.uname`. Doing

    rg '= (if )?OS\.(mac|linux)\?'

returns about 70 matches, so there are probably at least a handful of
formulae that could be simplified by this.
---
 Library/Homebrew/os.rb | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Library/Homebrew/os.rb b/Library/Homebrew/os.rb
index ca2924c97f..17e9076dca 100644
--- a/Library/Homebrew/os.rb
+++ b/Library/Homebrew/os.rb
@@ -35,6 +35,14 @@ module OS
     @kernel_version ||= Version.new(Utils.safe_popen_read("uname", "-r").chomp)
   end
 
+  # Get the kernel name.
+  #
+  # @api public
+  sig { returns(String) }
+  def self.uname
+    @uname ||= Utils.safe_popen_read("uname").chomp
+  end
+
   ::OS_VERSION = ENV["HOMEBREW_OS_VERSION"]
 
   CI_GLIBC_VERSION = "2.23"