up

.github/workflows/scripts/prepare-new-pr.sh

@@ -3,28 +3,34 @@
 # Copyright The OpenTelemetry Authors
 # SPDX-License-Identifier: Apache-2.0
 #
-# This script uses chloggen file to get the change_type and add it as a label to the PR.
+# This script uses chloggen file to get the change_type and adds it as a label to the PR.
+# If there are none or multiple changelog files, it will ignore the PR.
+#
+# Notes:
+#  - label should exist in the repository in order to add it to the PR.
+#  - if label already exist, this is a no-op.
+#  - if any error happens, the script quietly exits with 0.
 
 if [ -z ${PR:-} ]; then
     echo "PR number is required"
     exit 1
 fi
 
 CHLOG="$(gh pr view $PR --json files --jq '.files.[].path | select (. | startswith(".chloggen/"))')"
-echo "Change log file: ${CHLOG}"
+echo "Change log file(s): ${CHLOG}"
 
-COUNT="$(echo "$CHLOG" | wc -l)"
 if [ -z "$CHLOG" ]; then
     echo "No changelog found in the PR. Ignoring this change."
     exit 0
 fi
 
+COUNT="$(echo "$CHLOG" | wc -l)"
 if [ $COUNT -eq 1 ]; then
     CHANGE_TYPE=$(awk -F': ' '/^change_type:/ {print $2}' $CHLOG | xargs)
     echo $CHANGE_TYPE
     gh pr edit "${PR}" --add-label "${CHANGE_TYPE}" || true
 else
-    echo "Found multiple changelogs= files - $CHLOG. Ignoring this change."
+    echo "Found multiple changelog files - $CHLOG. Ignoring this change."
 fi
 
 exit 0