Merge pull request #3350 from DomT4/gpg_executable

gpg: a little intentional yak shaving

Library/Homebrew/gpg.rb

@@ -11,18 +11,12 @@ class Gpg
     end
   end
 
-  def self.gpg
-    find_gpg("gpg")
+  def self.executable
+    find_gpg("gpg") || find_gpg("gpg2")
   end
 
-  def self.gpg2
-    find_gpg("gpg2")
-  end
-
-  GPG_EXECUTABLE = gpg || gpg2
-
   def self.available?
-    File.executable?(GPG_EXECUTABLE.to_s)
+    File.executable?(executable.to_s)
   end
 
   def self.version
@@ -43,12 +37,12 @@ class Gpg
       %no-protection
       %commit
     EOS
-    system GPG_EXECUTABLE, "--batch", "--gen-key", "batch.gpg"
+    system executable, "--batch", "--gen-key", "batch.gpg"
   end
 
   def self.cleanup_test_processes!
     odie "No GPG present to test against!" unless available?
-    gpgconf = Pathname.new(GPG_EXECUTABLE).parent/"gpgconf"
+    gpgconf = Pathname.new(executable).parent/"gpgconf"
 
     system gpgconf, "--kill", "gpg-agent"
     system gpgconf, "--homedir", "keyrings/live", "--kill",

Library/Homebrew/requirements/gpg2_requirement.rb

@@ -8,5 +8,5 @@ class GPG2Requirement < Requirement
   # GPGTools installs GnuPG 2.0.x as a `gpg` symlink pointing
   # to `gpg2`. Our `gnupg` installs only a non-symlink `gpg`.
   # The aim is to retain support for any version above 2.0.
-  satisfy(build_env: false) { Gpg.gpg || Gpg.gpg2 }
+  satisfy(build_env: false) { Gpg.available? }
 end