From 76a3c0338b513c87f3e33588f89b45b17f6e472e Mon Sep 17 00:00:00 2001
From: Markus Reiter <me@reitermark.us>
Date: Mon, 7 Dec 2020 18:46:35 +0100
Subject: [PATCH] Add `unversioned?` method to `Cask::URL`.

---
 Library/Homebrew/cask/dsl.rb | 10 ++++---
 Library/Homebrew/cask/url.rb | 55 +++++++++++++++++++++++++++---------
 2 files changed, 47 insertions(+), 18 deletions(-)

diff --git a/Library/Homebrew/cask/dsl.rb b/Library/Homebrew/cask/dsl.rb
index 25e753ec2f..e8922c811b 100644
--- a/Library/Homebrew/cask/dsl.rb
+++ b/Library/Homebrew/cask/dsl.rb
@@ -173,12 +173,14 @@ module Cask
       @language_blocks.keys.flatten
     end
 
-    def url(*args)
-      set_unique_stanza(:url, args.empty? && !block_given?) do
+    def url(*args, **options)
+      caller_location = caller_locations[0]
+
+      set_unique_stanza(:url, args.empty? && options.empty? && !block_given?) do
         if block_given?
-          LazyObject.new { URL.new(*yield) }
+          LazyObject.new { URL.new(*yield, caller_location: caller_location) }
         else
-          URL.new(*args)
+          URL.new(*args, **options, caller_location: caller_location)
         end
       end
     end
diff --git a/Library/Homebrew/cask/url.rb b/Library/Homebrew/cask/url.rb
index 7bb6d5adf7..9c6d518479 100644
--- a/Library/Homebrew/cask/url.rb
+++ b/Library/Homebrew/cask/url.rb
@@ -18,19 +18,20 @@ class URL
 
   sig do
     params(
-      uri:        T.any(URI::Generic, String),
-      verified:   T.nilable(String),
-      using:      T.nilable(Symbol),
-      tag:        T.nilable(String),
-      branch:     T.nilable(String),
-      revisions:  T.nilable(T::Array[String]),
-      revision:   T.nilable(String),
-      trust_cert: T.nilable(T::Boolean),
-      cookies:    T.nilable(T::Hash[String, String]),
-      referer:    T.nilable(T.any(URI::Generic, String)),
-      header:     T.nilable(String),
-      user_agent: T.nilable(T.any(Symbol, String)),
-      data:       T.nilable(T::Hash[String, String]),
+      uri:             T.any(URI::Generic, String),
+      verified:        T.nilable(String),
+      using:           T.nilable(Symbol),
+      tag:             T.nilable(String),
+      branch:          T.nilable(String),
+      revisions:       T.nilable(T::Array[String]),
+      revision:        T.nilable(String),
+      trust_cert:      T.nilable(T::Boolean),
+      cookies:         T.nilable(T::Hash[String, String]),
+      referer:         T.nilable(T.any(URI::Generic, String)),
+      header:          T.nilable(String),
+      user_agent:      T.nilable(T.any(Symbol, String)),
+      data:            T.nilable(T::Hash[String, String]),
+      caller_location: Thread::Backtrace::Location,
     ).returns(T.untyped)
   end
   def initialize(
@@ -46,8 +47,10 @@ class URL
     referer: nil,
     header: nil,
     user_agent: nil,
-    data: nil
+    data: nil,
+    caller_location: T.must(caller_locations).fetch(0)
   )
+
     @uri = URI(uri)
 
     specs = {}
@@ -65,5 +68,29 @@ class URL
     specs[:data]       = @data       = data
 
     @specs = specs.compact
+
+    @caller_location = caller_location
+  end
+
+  sig { returns(T.nilable(String)) }
+  def raw_interpolated_url
+    return @raw_interpolated_url if defined?(@raw_interpolated_url)
+
+    @raw_interpolated_url =
+      Pathname(@caller_location.absolute_path)
+      .each_line.drop(@caller_location.lineno - 1)
+      .first&.yield_self { |line| line[/url\s+"([^"]+)"/, 1] }
+  end
+  private :raw_interpolated_url
+
+  sig { params(ignore_major_version: T::Boolean).returns(T::Boolean) }
+  def unversioned?(ignore_major_version: false)
+    interpolated_url = raw_interpolated_url
+
+    return false unless interpolated_url
+
+    interpolated_url = interpolated_url.gsub(/\#{\s*version\s*\.major\s*}/, "") if ignore_major_version
+
+    interpolated_url.exclude?('#{')
   end
 end