Ask comment.sh not to check event type

per #70

scripts/comment.sh

@@ -10,21 +10,27 @@
 _planfile="${GITHUB_WORKSPACE}/octodns-sync.plan"
 
 if [ "${ADD_PR_COMMENT}" = "Yes" ]; then
-  echo "INFO: \$ADD_PR_COMMENT is 'Yes'."
-  if [ "${GITHUB_EVENT_NAME}" = "pull_request" ]; then
-    if [ -z "${PR_COMMENT_TOKEN}" ]; then
-      echo "FAIL: \$PR_COMMENT_TOKEN is not set."
-      exit 1
-    fi
-  else
-    echo "SKIP: \$GITHUB_EVENT_NAME is not 'pull_request'."
-    exit 0
+  if [ -z "${PR_COMMENT_TOKEN}" ]; then
+    echo "FAIL: \$PR_COMMENT_TOKEN is not set."
+    exit 1
   fi
-  # Construct the comment body
-  _sha="$(git log -1 --format='%h')"
-  _header="## octoDNS Plan for ${_sha}"
-  _footer="Automatically generated by octodns-sync"
-  _body="${_header}
+  echo "INFO: \$ADD_PR_COMMENT is 'Yes' and \$PR_COMMENT_TOKEN is set."
+else
+  echo "SKIP: \$ADD_PR_COMMENT is not 'Yes'."
+  exit 0
+fi
+
+if [ -z "${COMMENTS_URL}" ]; then
+  echo "SKIP: \$COMMENTS_URL is not set."
+  echo "Was this workflow run triggered from a pull request?"
+  exit 0
+fi
+
+# Construct the comment body
+_sha="$(git log -1 --format='%h')"
+_header="## octoDNS Plan for ${_sha}"
+_footer="Automatically generated by octodns-sync"
+_body="${_header}
 
 $(cat "${_planfile}")
 
@@ -39,5 +45,3 @@ ${_footer}"
 comments_url = json.load(open(os.environ['GITHUB_EVENT_PATH'], 'r'))['pull_request']['comments_url']
 response = requests.post(comments_url, auth=(os.environ['_user'], os.environ['_token']), json={'body':os.environ['_body']})
 print(response)"
-
-fi