Warn users when installing EOL .NET versions (#245)

dist/index.js

@@ -18183,7 +18183,11 @@ class DotnetCoreInstaller {
             if (releasesInfo.length === 0) {
                 throw new Error(`Could not find info for version ${versionParts.join('.')} at ${DotNetCoreIndexUrl}`);
             }
-            return releasesInfo[0]['releases.json'];
+            const releaseInfo = releasesInfo[0];
+            if (releaseInfo['support-phase'] === 'eol') {
+                core.warning(`${releaseInfo['product']} ${releaseInfo['channel-version']} is no longer supported and will not receive security updates in the future. Please refer to https://aka.ms/dotnet-core-support for more information about the .NET support policy.`);
+            }
+            return releaseInfo['releases.json'];
         });
     }
 }

src/installer.ts

@@ -285,7 +285,14 @@ export class DotnetCoreInstaller {
       );
     }
 
-    return releasesInfo[0]['releases.json'];
+    const releaseInfo = releasesInfo[0];
+    if (releaseInfo['support-phase'] === 'eol') {
+      core.warning(
+        `${releaseInfo['product']} ${releaseInfo['channel-version']} is no longer supported and will not receive security updates in the future. Please refer to https://aka.ms/dotnet-core-support for more information about the .NET support policy.`
+      );
+    }
+
+    return releaseInfo['releases.json'];
   }
 
   private version: string;