brew: added TODO; revised README; added to formula caveats and testmkramlich/macos-brew2

Several tweaks:
  * added correct 'services start' msg via formula caveats method added
  * added 'tailscaled -version' to formula test block
  * added TODO file, extracted from author's private Tailscale brew TODO notes
  * added more brew notes to README

Signed-off-by: Mike Kramlich <groglogic@gmail.com>

1 files changed, 10 insertions, 1 deletions

diff --git a/brew/tailscale.tb-github.rb b/brew/tailscale.tb-github.rb
index 7a9fa0d0e..fb136dc67 100644
--- a/brew/tailscale.tb-github.rb
+++ b/brew/tailscale.tb-github.rb
@@ -57,6 +57,14 @@ class Tailscale < Formula
     (var/"lib/tailscale").mkpath
   end
 
+  def caveats
+    <<~EOS
+      To have launchd start tailscale now and restart at boot:
+        sudo brew services start tailscale
+      NOTE: The caveat message below with 'restart at login' is incorrect, but we can't suppress it. Requires sudo.
+    EOS
+  end
+
   plist_options manual: "sudo tailscaled --socket=#{HOMEBREW_PREFIX}/run/tailscale/tailscaled.sock --state=#{HOMEBREW_PREFIX}/lib/tailscale/tailscaled.state"
 
   def plist
@@ -94,7 +102,8 @@ class Tailscale < Formula
   end
 
   test do
-    system bin/"tailscale", "--version"
+    system bin/"tailscale", "version"
+    system bin/"tailscaled", "-version"
     system bin/"tailscale", "netcheck"
   end
 end