Merge pull request #13605 from Rylan12/api-merge-variations

Use `variations` hash when installing from the API

Library/Homebrew/formulary.rb

@@ -136,6 +136,18 @@ module Formulary
     class_s = Formulary.class_s(name)
     json_formula = Homebrew::API::Formula.all_formulae[name]
 
+    if (bottle_tag = Utils::Bottles.tag.to_s.presence) &&
+       (variations = json_formula["variations"].presence) &&
+       (variation = variations[bottle_tag].presence)
+      json_formula = json_formula.merge(variation)
+    end
+
+    uses_from_macos_names = json_formula["uses_from_macos"].map do |dep|
+      next dep unless dep.is_a? Hash
+
+      dep.keys.first
+    end
+
     klass = Class.new(::Formula) do
       desc json_formula["desc"]
       homepage json_formula["homepage"]
@@ -176,20 +188,18 @@ module Formulary
         disable! date: disable_date, because: reason
       end
 
-      json_formula["build_dependencies"].each do |dep|
-        depends_on dep => :build
-      end
-
       json_formula["dependencies"].each do |dep|
+        next if uses_from_macos_names.include? dep
+
         depends_on dep
       end
 
-      json_formula["recommended_dependencies"].each do |dep|
-        depends_on dep => :recommended
-      end
+      [:build, :recommended, :optional].each do |type|
+        json_formula["#{type}_dependencies"].each do |dep|
+          next if uses_from_macos_names.include? dep
 
-      json_formula["optional_dependencies"].each do |dep|
-        depends_on dep => :optional
+          depends_on dep => type
+        end
       end
 
       json_formula["uses_from_macos"].each do |dep|

Library/Homebrew/test/formulary_spec.rb

@@ -260,6 +260,26 @@ describe Formulary do
         }
       end
 
+      let(:variations_json) do
+        {
+          "variations" => {
+            Utils::Bottles.tag.to_s => {
+              "dependencies" => ["dep", "variations_dep"],
+            },
+          },
+        }
+      end
+
+      let(:linux_variations_json) do
+        {
+          "variations" => {
+            "x86_64_linux" => {
+              "dependencies" => ["dep", "uses_from_macos_dep"],
+            },
+          },
+        }
+      end
+
       before do
         allow(described_class).to receive(:loader_for).and_return(described_class::FormulaAPILoader.new(formula_name))
       end
@@ -303,6 +323,25 @@ describe Formulary do
           formula.install
         }.to raise_error("Cannot build from source from abstract formula.")
       end
+
+      it "returns a Formula with variations when given a name", :needs_macos do
+        allow(Homebrew::API::Formula).to receive(:all_formulae).and_return formula_json_contents(variations_json)
+
+        formula = described_class.factory(formula_name)
+        expect(formula).to be_kind_of(Formula)
+        expect(formula.deps.count).to eq 5
+        expect(formula.deps.map(&:name).include?("variations_dep")).to be true
+      end
+
+      it "returns a Formula without duplicated deps and uses_from_macos with variations on Linux", :needs_linux do
+        allow(Homebrew::API::Formula)
+          .to receive(:all_formulae).and_return formula_json_contents(linux_variations_json)
+
+        formula = described_class.factory(formula_name)
+        expect(formula).to be_kind_of(Formula)
+        expect(formula.deps.count).to eq 5
+        expect(formula.deps.map(&:name).include?("uses_from_macos_dep")).to be true
+      end
     end
   end