fix: fix error handling

Author: ueokande

src/channel_windows.ts

@@ -6,6 +6,12 @@ import * as exec from "@actions/exec";
 import * as core from "@actions/core";
 import fs from "fs";
 
+const isENOENT = (e: unknown): boolean => {
+  return (
+    typeof e === "object" && e !== null && "code" in e && e.code === "ENOENT"
+  );
+};
+
 export class WindowsChannelInstaller implements Installer {
   constructor(private readonly platform: Platform) {}
 
@@ -18,7 +24,7 @@ export class WindowsChannelInstaller implements Installer {
     try {
       await fs.promises.stat(root);
     } catch (e) {
-      if (e.code === "ENOENT") {
+      if (isENOENT(e)) {
         return undefined;
       }
       throw e;

src/index.ts

@@ -5,6 +5,10 @@ import * as installer from "./installer";
 import { getPlatform, OS } from "./platform";
 import path from "path";
 
+const hasErrorMessage = (e: unknown): e is { message: string | Error } => {
+  return typeof e === "object" && e !== null && "message" in e;
+};
+
 async function run(): Promise<void> {
   try {
     const version = core.getInput("chrome-version") || "latest";
@@ -26,7 +30,11 @@ async function run(): Promise<void> {
       await exec.exec(binName, ["--version"]);
     }
   } catch (error) {
-    core.setFailed(error.message);
+    if (hasErrorMessage(error)) {
+      core.setFailed(error.message);
+    } else {
+      console.error(error)
+    }
   }
 }