From 42dbb1b375401474436b62c3cec2751d1579774d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marc=20Cornell=C3=A0?= <marc.cornella@live.com>
Date: Sat, 12 Dec 2020 14:22:26 +0100
Subject: [PATCH] fix(changelog): allow breaking change message to span
 multiple lines

This also allows the option to put extra paragraphs after the BREAKING CHANGE
message while properly displaying the breaking change message. Useful, for
example, to add signed-off or co-authored lines.
---
 tools/changelog.sh | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/tools/changelog.sh b/tools/changelog.sh
index 845b1d4b4..8753212e9 100755
--- a/tools/changelog.sh
+++ b/tools/changelog.sh
@@ -86,11 +86,15 @@ function parse-commit {
 
   # Return subject if the body or subject match the breaking change format
   function commit:is-breaking {
-    local subject="$1" body="$2"
+    local subject="$1" body="$2" message
 
     if [[ "$body" =~ "BREAKING CHANGE: (.*)" || \
       "$subject" =~ '^[^ :\)]+\)?!: (.*)$' ]]; then
-      echo "${match[1]}"
+      message="${match[1]}"
+      # skip next paragraphs (separated by two newlines or more)
+      message="${message%%$'\n\n'*}"
+      # ... and replace newlines with spaces
+      echo "${message//$'\n'/ }"
     else
       return 1
     fi