From a3321d07ad091516dce5d3c973fd963d67bcc364 Mon Sep 17 00:00:00 2001
From: Ryan Tsao <ryan.j.tsao@gmail.com>
Date: Mon, 11 Mar 2019 14:34:30 -0700
Subject: [PATCH] Ignore prereleases

https://github.com/uber-workflow/probot-app-release-notes/pull/75

Co-authored-by: Ryan Tsao <ryan.j.tsao@gmail.com>
---
 index.js | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/index.js b/index.js
index 5db24ae2..d8461b69 100644
--- a/index.js
+++ b/index.js
@@ -22,6 +22,11 @@ module.exports = robot => {
   async function handler(context) {
     const release = context.payload.release;
 
+    // Don't generate release notes for prereleases
+    if (release.prerelease) {
+      return;
+    }
+
     const releasesBySha = await fetchAllReleases(context);
 
     const {commits} = await getChangeInfo(
@@ -99,6 +104,10 @@ async function fetchAllReleases(context, handler = () => {}) {
   );
   await fetchPages(github, req, results => {
     results.data.forEach(release => {
+      if (release.prerelease) {
+        // Ignore prereleases, so changelog reflects changes since last non-prerelease
+        return;
+      }
       releasesBySha.set(release.target_commitish, release);
       handler(release);
     });