From f558f9692c94449502db14bb6753df59610c26a7 Mon Sep 17 00:00:00 2001
From: Tomasz Pluskiewicz <tpluscode@users.noreply.github.com>
Date: Sat, 30 Jan 2021 21:34:05 +0100
Subject: [PATCH] fix: ensure that versions are valid SerVer before comparing

---
 app/main.js | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/app/main.js b/app/main.js
index 96ed4fd..496a231 100644
--- a/app/main.js
+++ b/app/main.js
@@ -51,7 +51,18 @@ async function run () {
     }
 
     const minVersion = core.getInput('minVersion', { required: false })
-    if (semver.lt(version, minVersion)) {
+    
+    // Ensure that version and minVersion are valid SemVer strings
+    const minVersionSemVer = semver.coerce(minVersion)
+    const versionSemVer = semver.coerce(version)
+    if (!minVersionSemVer) {
+      core.warning(`Skipping min version check. ${minVersion} is not valid SemVer`)
+    }
+    if(!versionSemVer) {
+      core.warning(`Skipping min version check. ${version} is not valid SemVer`)
+    }
+    
+    if (minVersionSemVer && versionSemVer && semver.lt(versionSemVer, minVersion)) {
       core.warning(`Version "${version}" is lower than minimum "${minVersion}"`)
       return
     }