Merge pull request #286 from pantheon-systems/PCC-1471-we-shouldnt-sa…

…y-a-cli-update-is-available-if-the-new-version-is-a-beta-version

PCC-1471 Don't prompt the user to update the CLI if only a prerelease is available

.changeset/tough-melons-dream.md

@@ -0,0 +1,5 @@
+---
+"@pantheon-systems/pcc-cli": patch
+---
+
+Don't notify the user that an update is available, if it is only a pre-release.

packages/cli/src/lib/checkUpdate.ts

@@ -19,8 +19,26 @@ export function getPackageDetails() {
 
 const checkUpdate = async () => {
   const { name, version } = getPackageDetails();
-  const { version: latestVersion } = await pkgJson(name);
-  const updateAvailable = semver.lt(version, latestVersion as string);
+  const { versions: allPublishedVersions } = await pkgJson(name, {
+    allVersions: true,
+  });
+
+  const versionKeys = Object.keys(allPublishedVersions);
+  let latestVersion = versionKeys.pop();
+
+  while (latestVersion != null) {
+    if (
+      !semver.prerelease(latestVersion) &&
+      semver.gt(latestVersion, version)
+    ) {
+      break;
+    }
+
+    latestVersion = versionKeys.pop();
+  }
+
+  const updateAvailable =
+    latestVersion != null && semver.lt(version, latestVersion as string);
   if (updateAvailable) {
     const msg = {
       updateAvailable: `Update available! ${chalk.dim(version)} → ${chalk.green(