Do not use require (#45)

* Do not use require

Avoid warnings with webpack and when importing in browser.
Fixes: #20

* Fix tests

* 💄

Co-authored-by: Andrej Hoos <andrej@betterstack.com>

* 💄 (2)

---------

Co-authored-by: Andrej Hoos <andrej@betterstack.com>

Author: curusarn

packages/bunyan/src/bunyan.test.ts

@@ -132,7 +132,7 @@ describe("Bunyan tests", () => {
     logtail.setSync(async logs => {
       const context = logs[0].context as Context;
       const runtime = context.runtime as Context;
-      expect(runtime.file).toEqual("bunyan.test.ts")
+      expect(runtime.file).toMatch("bunyan.test.ts")
       done();
       return logs;
     });

packages/node/src/context.ts

@@ -3,6 +3,7 @@ import { dirname, relative } from "path";
 import stackTrace, { StackFrame } from 'stack-trace';
 import { Node } from "./node";
 
+const mainFile = mainFileName();
 /**
  * Determines the file name and the line number from which the log
  * was initiated (if we're able to tell).
@@ -25,7 +26,7 @@ export function getStackContext(logtail: Node, stackContextHint?: StackContextHi
       },
       system: {
         pid: process.pid,
-        main_file: mainFileName()
+        main_file: mainFile,
       }
     }
   };
@@ -66,5 +67,16 @@ function relativeToMainModule(fileName: string): string | null {
 }
 
 function mainFileName(): string {
-  return require?.main?.filename ?? '';
+  let argv = process.argv;
+  // return first js file argument - arg ending in .js
+  for (const i in argv) {
+    if (argv[i].startsWith('-')) {
+      // break on first option
+      break;
+    }
+    if (argv[i].endsWith('.js')) {
+      return argv[i];
+    }
+  }
+  return '';
 }

packages/winston/src/winston.test.ts

@@ -213,6 +213,6 @@ describe("Winston logging tests", () => {
 
     const context = logs[0].context as Context;
     const runtime = context.runtime as Context;
-    expect(runtime.file).toEqual("winston.test.ts")
+    expect(runtime.file).toMatch("winston.test.ts");
   });
 });