support custom output paths

src/index.ts

@@ -25,6 +25,7 @@ export interface ProfilerOptions {
   concurrency: number;
   prefix: string;
   outDir: string;
+  customOutputPath: string;
 }
 
 export default class Profiler {
@@ -33,13 +34,12 @@ export default class Profiler {
   private threads: number[];
 
   constructor(opts: ProfilerOptions) {
-    const { concurrency, outDir, prefix } = opts;
+    const { concurrency, outDir, prefix, customOutputPath } = opts;
 
     this.events = [];
-    this.outputPath = path.join(
-      path.resolve(outDir || "."),
-      getTimeBasedFilename(prefix)
-    );
+    this.outputPath =
+      customOutputPath ||
+      path.join(path.resolve(outDir || "."), getTimeBasedFilename(prefix));
     this.threads = range(concurrency);
   }