From 68b6b1532c33116eee34a11e57910cce3e4a4fda Mon Sep 17 00:00:00 2001
From: Trevor Brown <admin@stratus3d.com>
Date: Mon, 12 Mar 2018 15:45:02 -0400
Subject: [PATCH] Add check for duplicate issue numbers in the changelog to the
 release.sh script.

---
 release.sh | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/release.sh b/release.sh
index 565f9036..c925a5b6 100755
--- a/release.sh
+++ b/release.sh
@@ -73,6 +73,14 @@ if ! grep "$new_version$" CHANGELOG.md; then
     exit 1
 fi
 
+# Make sure the changelog doesn't contain duplicate issue numbers
+nonunique_issue_numbers=$(grep -o -P '#[\d]+' CHANGELOG.md | sort)
+unique_issue_numbers=$(grep -o -P '#[\d]+' CHANGELOG.md | sort -u)
+if [ "$nonunique_issue_numbers" != "$unique_issue_numbers" ]; then
+    echo >&2 "ERROR: Duplicate issue numbers in changelog."
+    exit 1
+fi
+
 echo "INFO: Checking that all changes are commited and pushed"
 git pull