Move isDefaultSetup to actions-util.ts and change implementation

Author: mbg

lib/actions-util.js

@@ -480,3 +480,8 @@ export const getFileType = async (filePath: string): Promise<string> => {
 export function isSelfHostedRunner() {
   return process.env.RUNNER_ENVIRONMENT === "self-hosted";
 }
+
+/** Determines whether we are running in default setup. */
+export function isDefaultSetup(): boolean {
+  return getWorkflowEventName() === "dynamic";
+}

lib/actions-util.js.map

@@ -12,6 +12,7 @@ import {
   getOptionalInput,
   getRequiredInput,
   getTemporaryDirectory,
+  isDefaultSetup,
 } from "./actions-util";
 import { getGitHubVersion } from "./api-client";
 import { CodeQL } from "./codeql";
@@ -602,13 +603,6 @@ function getTrapCachingEnabled(): boolean {
   return true;
 }
 
-/** Determines whether we are running in default setup. */
-function isDefaultSetup(): boolean {
-  // This is set to something in default setup runs.
-  // TODO: replace with something better, if there's something.
-  return process.env["CODE_SCANNING_WORKFLOW_FILE"] !== undefined;
-}
-
 /** Determines whether dependency caching is enabled. */
 function getDependencyCachingEnabled(): boolean {
   // If the workflow specified something always respect that