Show application of file and data patches

Author: Bo98

Library/Homebrew/data_patch.rb

@@ -14,6 +14,9 @@ def initialize(strip)
     @path = T.let(nil, T.nilable(Pathname))
   end
 
+  sig { override.returns(String) }
+  def filename = "embedded formula patch"
+
   sig { override.returns(String) }
   def contents
     path = self.path

Library/Homebrew/embedded_patch.rb

@@ -32,6 +32,9 @@ def external?
     false
   end
 
+  sig { abstract.returns(String) }
+  def filename; end
+
   sig { abstract.returns(String) }
   def contents; end
 
@@ -43,6 +46,7 @@ def apply
     if (subdirectory = directory.presence)
       dir /= subdirectory
     end
+    ohai "Applying #{filename}"
     Patch.ensure_targets_within!(data, strip:, base: dir)
     dir.cd do
       Utils.safe_popen_write("patch", *args) { |p| p.write(data) }

Library/Homebrew/local_patch.rb

@@ -46,6 +46,9 @@ def resolves
     (@resolves + Patch.extract_cves(file.to_s)).uniq
   end
 
+  sig { override.returns(String) }
+  def filename = file.to_s.delete_prefix("Patches/")
+
   sig { override.returns(String) }
   def contents
     owner = self.owner

Library/Homebrew/string_patch.rb

@@ -11,6 +11,9 @@ def initialize(strip, str)
     @str = str
   end
 
+  sig { override.returns(String) }
+  def filename = "embedded formula patch"
+
   sig { override.returns(String) }
   def contents
     @str