Add a CLI interface to the upload-sarif action

src/logging.ts

@@ -0,0 +1,26 @@
+import * as core from '@actions/core';
+
+export interface Logger {
+  debug: (message: string) => void;
+  info: (message: string) => void;
+  warning: (message: string) => void;
+  error: (message: string) => void;
+
+  startGroup: (name: string) => void;
+  endGroup: () => void;
+}
+
+export function getActionsLogger(): Logger {
+  return core;
+}
+
+export function getCLILogger(): Logger {
+  return {
+    debug: console.debug,
+    info: console.info,
+    warning: console.warn,
+    error: console.error,
+    startGroup: () => undefined,
+    endGroup: () => undefined,
+  };
+}