From 5277f849d9dc30c8beac490fe163f3cb7ac7dba1 Mon Sep 17 00:00:00 2001
From: EricFromCanada <enk3@outlook.com>
Date: Mon, 2 Mar 2020 16:29:49 -0500
Subject: [PATCH] API: supply additional data for requirements

---
 Library/Homebrew/formula.rb                        | 3 +++
 Library/Homebrew/requirements/java_requirement.rb  | 4 ++--
 Library/Homebrew/requirements/macos_requirement.rb | 6 ++++++
 Library/Homebrew/requirements/xcode_requirement.rb | 2 ++
 4 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/Library/Homebrew/formula.rb b/Library/Homebrew/formula.rb
index b465de0580..047b8967d8 100644
--- a/Library/Homebrew/formula.rb
+++ b/Library/Homebrew/formula.rb
@@ -1690,10 +1690,13 @@ class Formula
     end
 
     hsh["requirements"] = requirements.map do |req|
+      req.name.prepend("maximum_") if req.try(:comparator) == "<="
       {
         "name"     => req.name,
         "cask"     => req.cask,
         "download" => req.download,
+        "version"  => req.try(:version),
+        "contexts" => req.tags,
       }
     end
 
diff --git a/Library/Homebrew/requirements/java_requirement.rb b/Library/Homebrew/requirements/java_requirement.rb
index 8a0bf67e57..7b67cbc4ab 100644
--- a/Library/Homebrew/requirements/java_requirement.rb
+++ b/Library/Homebrew/requirements/java_requirement.rb
@@ -3,10 +3,10 @@
 require "language/java"
 
 class JavaRequirement < Requirement
-  attr_reader :java_home
-
   fatal true
 
+  attr_reader :java_home, :version
+
   # A strict Java 8 requirement (1.8) should prompt the user to install
   # an OpenJDK 1.8 distribution. Versions newer than Java 8 are not
   # completely backwards compatible, and contain breaking changes such as
diff --git a/Library/Homebrew/requirements/macos_requirement.rb b/Library/Homebrew/requirements/macos_requirement.rb
index 64e7a8fee0..c8427dd767 100644
--- a/Library/Homebrew/requirements/macos_requirement.rb
+++ b/Library/Homebrew/requirements/macos_requirement.rb
@@ -5,6 +5,8 @@ require "requirement"
 class MacOSRequirement < Requirement
   fatal true
 
+  attr_reader :comparator, :version
+
   def initialize(tags = [], comparator: ">=")
     if comparator == "==" && tags.first.respond_to?(:map)
       @version = tags.shift.map { |s| MacOS::Version.from_symbol(s) }
@@ -54,6 +56,10 @@ class MacOSRequirement < Requirement
     end
   end
 
+  def inspect
+    "#<#{self.class.name}: #{tags.inspect} version#{@comparator}#{@version}>"
+  end
+
   def display_s
     return "macOS is required" unless version_specified?
 
diff --git a/Library/Homebrew/requirements/xcode_requirement.rb b/Library/Homebrew/requirements/xcode_requirement.rb
index 3bdc95a908..974de5f67d 100644
--- a/Library/Homebrew/requirements/xcode_requirement.rb
+++ b/Library/Homebrew/requirements/xcode_requirement.rb
@@ -5,6 +5,8 @@ require "requirement"
 class XcodeRequirement < Requirement
   fatal true
 
+  attr_reader :version
+
   satisfy(build_env: false) { xcode_installed_version }
 
   def initialize(tags = [])