Include recursive dependencies in cask tabs

Library/Homebrew/cask/tab.rb

@@ -50,36 +50,35 @@ module Cask
     end
 
     def self.runtime_deps_hash(cask, depends_on)
-      mappable_types = [:cask, :formula]
-      depends_on.to_h do |type, deps|
-        next [type, deps] unless mappable_types.include? type
+      cask_and_formula_dep_graph = ::Utils::TopologicalHash.graph_package_dependencies(cask)
+      cask_deps, formula_deps = cask_and_formula_dep_graph.values.flatten.uniq.partition do |dep|
+        dep.is_a?(Cask)
+      end
 
-        deps = deps.map do |dep|
-          if type == :cask
-            c = CaskLoader.load(dep)
+      runtime_deps = {}
+
+      if cask_deps.any?
+        runtime_deps[:cask] = cask_deps.map do |dep|
           {
-              "full_name"         => c.full_name,
-              "version"           => c.version.to_s,
-              "declared_directly" => cask.depends_on.cask.include?(dep),
+            "full_name"         => dep.full_name,
+            "version"           => dep.version.to_s,
+            "declared_directly" => cask.depends_on.cask.include?(dep.full_name),
           }
-          elsif type == :formula
-            f = Formulary.factory(dep, warn: false)
-            {
-              "full_name"         => f.full_name,
-              "version"           => f.version.to_s,
-              "revision"          => f.revision,
-              "pkg_version"       => f.pkg_version.to_s,
-              "declared_directly" => cask.depends_on.formula.include?(dep),
-            }
-          else
-            dep
         end
       end
 
-        [type, deps]
+      if formula_deps.any?
+        runtime_deps[:formula] = formula_deps.map do |dep|
+          formula_to_dep_hash(dep, cask.depends_on.formula)
         end
       end
 
+      runtime_deps[:macos] = depends_on.macos if depends_on.macos
+      runtime_deps[:arch] = depends_on.arch if depends_on.arch
+
+      runtime_deps
+    end
+
     def version
       source["version"]
     end

Library/Homebrew/tab.rb

@@ -93,6 +93,17 @@ class AbstractTab
     new(attributes)
   end
 
+  def self.formula_to_dep_hash(formula, declared_deps)
+    {
+      "full_name"         => formula.full_name,
+      "version"           => formula.version.to_s,
+      "revision"          => formula.revision,
+      "pkg_version"       => formula.pkg_version.to_s,
+      "declared_directly" => declared_deps.include?(formula.full_name),
+    }
+  end
+  private_class_method :formula_to_dep_hash
+
   def initialize(attributes = {})
     attributes.each { |key, value| instance_variable_set(:"@#{key}", value) }
   end
@@ -290,14 +301,7 @@ class Tab < AbstractTab
 
   def self.runtime_deps_hash(formula, deps)
     deps.map do |dep|
-      f = dep.to_formula
-      {
-        "full_name"         => f.full_name,
-        "version"           => f.version.to_s,
-        "revision"          => f.revision,
-        "pkg_version"       => f.pkg_version.to_s,
-        "declared_directly" => formula.deps.include?(dep),
-      }
+      formula_to_dep_hash(dep.to_formula, formula.deps.map(&:name))
     end
   end
 

Library/Homebrew/test/cask/tab_spec.rb

@@ -85,17 +85,67 @@ RSpec.describe Cask::Tab, :cask do
     expect(tab.runtime_dependencies).not_to be_nil
   end
 
-  specify "::runtime_deps_hash" do
+  describe "::runtime_deps_hash" do
+    specify "with no dependencies" do
+      cask = Cask::CaskLoader.load("local-transmission")
+
+      expect(described_class.runtime_deps_hash(cask, cask.depends_on)).to eq({})
+    end
+
+    specify "with cask dependencies" do
+      cask = Cask::CaskLoader.load("with-depends-on-cask")
+
+      expected_hash = {
+        cask: [
+          { "full_name"=>"local-transmission", "version"=>"2.61", "declared_directly"=>true },
+        ],
+      }
+      expect(described_class.runtime_deps_hash(cask, cask.depends_on)).to eq(expected_hash)
+    end
+
+    specify "with macos symbol dependencies" do
+      cask = Cask::CaskLoader.load("with-depends-on-macos-symbol")
+
+      expected_hash = {
+        macos: MacOSRequirement.new([MacOS.version.to_sym], comparator: "=="),
+      }
+      expect(described_class.runtime_deps_hash(cask, cask.depends_on)).to eq(expected_hash)
+    end
+
+    specify "with macos array dependencies" do
+      cask = Cask::CaskLoader.load("with-depends-on-macos-array")
+
+      expected_hash = {
+        macos: MacOSRequirement.new([[:catalina, MacOS.version.to_sym]], comparator: "=="),
+      }
+      expect(described_class.runtime_deps_hash(cask, cask.depends_on)).to eq(expected_hash)
+    end
+
+    specify "with arch dependencies" do
+      cask = Cask::CaskLoader.load("with-depends-on-arch")
+
+      expected_hash = {
+        arch: [
+          { type: :intel, bits: 64 },
+          { type: :arm, bits: 64 },
+        ],
+      }
+      expect(described_class.runtime_deps_hash(cask, cask.depends_on)).to eq(expected_hash)
+    end
+
+    specify "with all types of dependencies" do
       cask = Cask::CaskLoader.load("with-depends-on-everything")
 
-    unar = instance_double(Formula, full_name: "unar", version: "1.2", revision: 0, pkg_version: "1.2")
-    expect(Formulary).to receive(:factory).with("unar", { warn: false }).and_return(unar)
+      unar = instance_double(Formula, full_name: "unar", version: "1.2", revision: 0, pkg_version: "1.2",
+                             deps: [], requirements: [])
+      expect(Formulary).to receive(:factory).with("unar").and_return(unar)
 
       expected_hash = {
         arch:    [{ type: :intel, bits: 64 }, { type: :arm, bits: 64 }],
         cask:    [
           { "full_name"=>"local-caffeine", "version"=>"1.2.3", "declared_directly"=>true },
-        { "full_name"=>"local-transmission", "version"=>"2.61", "declared_directly"=>true },
+          { "full_name"=>"with-depends-on-cask", "version"=>"1.2.3", "declared_directly"=>true },
+          { "full_name"=>"local-transmission", "version"=>"2.61", "declared_directly"=>false },
         ],
         formula: [
           { "full_name"=>"unar", "version"=>"1.2", "revision"=>0, "pkg_version"=>"1.2", "declared_directly"=>true },
@@ -108,6 +158,7 @@ RSpec.describe Cask::Tab, :cask do
       tab.runtime_dependencies = runtime_deps_hash
       expect(tab.runtime_dependencies).to eql(expected_hash)
     end
+  end
 
   specify "other attributes" do
     expect(tab.tap.name).to eq("homebrew/cask")

Library/Homebrew/test/support/fixtures/cask/Casks/with-depends-on-everything.rb

@@ -7,7 +7,7 @@ cask "with-depends-on-everything" do
 
   depends_on arch: [:intel, :arm64]
   depends_on cask: "local-caffeine"
-  depends_on cask: "local-transmission"
+  depends_on cask: "with-depends-on-cask"
   depends_on formula: "unar"
   depends_on macos: ">= :el_capitan"
 

Library/Homebrew/test/tab_spec.rb

@@ -155,7 +155,8 @@ RSpec.describe Tab do
     expect(tab.runtime_dependencies).not_to be_nil
   end
 
-  specify "::runtime_deps_hash" do
+  describe "::runtime_deps_hash" do
+    it "handles older Homebrew versions correctly" do
       runtime_deps = [Dependency.new("foo")]
       foo = formula("foo") { url "foo-1.0" }
       stub_formula_loader foo
@@ -169,6 +170,56 @@ RSpec.describe Tab do
       )
     end
 
+    it "include declared dependencies" do
+      foo = formula("foo") { url "foo-1.0" }
+      stub_formula_loader foo
+
+      runtime_deps = [Dependency.new("foo")]
+      formula = instance_double(Formula, deps: runtime_deps)
+
+      expected_output = [
+        {
+          "full_name"         => "foo",
+          "version"           => "1.0",
+          "revision"          => 0,
+          "pkg_version"       => "1.0",
+          "declared_directly" => true,
+        },
+      ]
+      expect(described_class.runtime_deps_hash(formula, runtime_deps)).to eq(expected_output)
+    end
+
+    it "includes recursive dependencies" do
+      foo = formula("foo") { url "foo-1.0" }
+      stub_formula_loader foo
+      bar = formula("bar") { url "bar-2.0" }
+      stub_formula_loader bar
+
+      # Simulating dependencies formula => foo => bar
+      formula_declared_deps = [Dependency.new("foo")]
+      formula_recursive_deps = [Dependency.new("foo"), Dependency.new("bar")]
+      formula = instance_double(Formula, deps: formula_declared_deps)
+
+      expected_output = [
+        {
+          "full_name"         => "foo",
+          "version"           => "1.0",
+          "revision"          => 0,
+          "pkg_version"       => "1.0",
+          "declared_directly" => true,
+        },
+        {
+          "full_name"         => "bar",
+          "version"           => "2.0",
+          "revision"          => 0,
+          "pkg_version"       => "2.0",
+          "declared_directly" => false,
+        },
+      ]
+      expect(described_class.runtime_deps_hash(formula, formula_recursive_deps)).to eq(expected_output)
+    end
+  end
+
   specify "#cxxstdlib" do
     expect(tab.cxxstdlib.compiler).to eq(:clang)
     expect(tab.cxxstdlib.type).to eq(:libcxx)