Show dependencies for casks

Library/Homebrew/cask/info.rb

@@ -18,6 +18,8 @@ def self.get_info(cask)
  output << "#{repo}\n" if repo
  output << name_info(cask)
  output << desc_info(cask)
+ deps = deps_info(cask)
+ output << deps if deps
  language = language_info(cask)
  output << language if language
  output << "#{artifact_info(cask)}\n"
@@ -76,6 +78,22 @@ def self.desc_info(cask)
  EOS
  end
 
+ sig { params(cask: Cask).returns(T.nilable(String)) }
+ def self.deps_info(cask)
+ depends_on = cask.depends_on
+
+ formula_deps = depends_on[:formula]&.map(&:to_s) || []
+ cask_deps = depends_on[:cask]&.map { |dep| "#{dep} (cask)" } || []
+
+ all_deps = formula_deps + cask_deps
+ return if all_deps.empty?
+
+ <<~EOS
+ #{ohai_title("Dependencies")}
+ #{all_deps.join(", ")}
+ EOS
+ end
+
  sig { params(cask: Cask).returns(T.nilable(String)) }
  def self.language_info(cask)
  return if cask.languages.empty?

Library/Homebrew/test/cask/info_spec.rb

@@ -25,6 +25,44 @@
  EOS
  end
 
+ it "prints cask dependencies if the Cask has any" do
+ expect do
+ described_class.info(Cask::CaskLoader.load("with-depends-on-cask-multiple"))
+ end.to output(<<~EOS).to_stdout
+ ==> with-depends-on-cask-multiple: 1.2.3
+ https://brew.sh/with-depends-on-cask-multiple
+ Not installed
+ From: https://github.com/Homebrew/homebrew-cask/blob/HEAD/Casks/w/with-depends-on-cask-multiple.rb
+ ==> Name
+ None
+ ==> Description
+ None
+ ==> Dependencies
+ local-caffeine (cask), local-transmission (cask)
+ ==> Artifacts
+ Caffeine.app (App)
+ EOS
+ end
+
+ it "prints cask and formulas dependencies if the Cask has both" do
+ expect do
+ described_class.info(Cask::CaskLoader.load("with-depends-on-everything"))
+ end.to output(<<~EOS).to_stdout
+ ==> with-depends-on-everything: 1.2.3
+ https://brew.sh/with-depends-on-everything
+ Not installed
+ From: https://github.com/Homebrew/homebrew-cask/blob/HEAD/Casks/w/with-depends-on-everything.rb
+ ==> Name
+ None
+ ==> Description
+ None
+ ==> Dependencies
+ unar, local-caffeine (cask), with-depends-on-cask (cask)
+ ==> Artifacts
+ Caffeine.app (App)
+ EOS
+ end
+
  it "prints auto_updates if the Cask has `auto_updates true`" do
  expect do
  described_class.info(Cask::CaskLoader.load("with-auto-updates"))