From a26c7c88aadc930950616c71bf3794e31b6acd89 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ingy=20d=C3=B6t=20Net?= <ingy@ingy.net>
Date: Sun, 5 Jan 2025 13:37:12 -0500
Subject: [PATCH] Add 'make diff' support with yq to workflow Makefile

---
 .github/workflows-src/Makefile | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/.github/workflows-src/Makefile b/.github/workflows-src/Makefile
index 9aa709a6..7f40cbe5 100644
--- a/.github/workflows-src/Makefile
+++ b/.github/workflows-src/Makefile
@@ -19,6 +19,21 @@ test: force build
 	@git diff --exit-code ../workflows && \
 	  echo -e '\nPASS - No normative changes to .github/workflows'
 
+DIFF_ORIG_COMMIT ?= HEAD
+diff:
+	@for f in $(SOURCE_FILES); do \
+	  f=$${f##*/}; \
+	  diff -u --color=auto \
+	    <(yq -P 'sort_keys(..)' \
+	         -o=props <(git show $(DIFF_ORIG_COMMIT):.github/workflows/$$f) | \
+		 grep -Ev '(^$$|^#)' \
+	     ) \
+	    <(yq -P 'sort_keys(..)' \
+	         -o=props ../workflows/$$f | \
+		 grep -Ev '(^$$|^#)'\
+	     ); \
+	  done
+
 force:
 	touch *.yml