From ba8814c25e7883fe409e658ab6db0bf04555f911 Mon Sep 17 00:00:00 2001
From: Chiu-Po-Ying <charlie910417@gmail.com>
Date: Mon, 10 Mar 2025 09:18:41 +0800
Subject: [PATCH] Correct order of Co-authored-by in commit footer

This fix ensures that 'Co-authored-by' is properly placed above 'change-Id' in the commit footer.

Co-authored-by: EricccTaiwan <yphbchou0911@gmail.com>
Change-Id: I856457b5575a967096ad71c9e4271b45b8d1400a
---
 scripts/commit-msg.hook | 21 +++++++++++++++++++--
 1 file changed, 19 insertions(+), 2 deletions(-)

diff --git a/scripts/commit-msg.hook b/scripts/commit-msg.hook
index 0ba27bf28..de8afd463 100755
--- a/scripts/commit-msg.hook
+++ b/scripts/commit-msg.hook
@@ -613,12 +613,29 @@ add_change_id() {
     }
     changeIdAfter = "^(" tolower("'"$CHANGE_ID_AFTER"'") "):"
     numlines = split(lines, footer, "\n")
+
+    # Find the last line that starts with a comment character.
+    coauthorIndex = 0
+    for (line = 1; line <= numlines; line++) {
+      if (match(tolower(footer[line]), /^co-authored-by:/)) {
+        coauthorIndex = line
+      }
+    }
+
     for (line = 1; line <= numlines; line++) {
       if (unprinted && match(tolower(footer[line]), changeIdAfter) != 1) {
-        unprinted = 0
-        print "Change-Id: I'"$id"'"
+        # If the Change-Id is the first line in the footer, print it first.
+        if (coauthorIndex == 0 || line > coauthorIndex) {
+          print "Change-Id: I'"$id"'"
+          unprinted = 0
+        }
       }
       print footer[line]
+
+      if(line == coauthorIndex && unprinted) {
+        print "Change-Id: I'"$id"'"
+        unprinted = 0
+      }
     }
     if (unprinted) {
       print "Change-Id: I'"$id"'"