Extracting file from error object

src/index.ts

@@ -113,7 +113,7 @@ export class LoggingBase {
          let e = new Error()
          this.message(LoggingTypes.Error, [error, ":", e.stack]);
       } else {
-         this.message(LoggingTypes.Error, [error.name, ":", error.message, ":", error.stack]);
+         this.message(LoggingTypes.Error, [error.name, ":", error.message, ":", error.stack], undefined, getCallerFromExisting(error));
       }
    }
 
@@ -121,7 +121,7 @@ export class LoggingBase {
       this.message(LoggingTypes.Error, message);
    }
 
-   private async message(type: LoggingTypes, message: any[] | string, customColors?: string) {
+   private async message(type: LoggingTypes, message: any[] | string, customColors?: string, caller?: { file: string, line: number }) {
       var consoleLogFormat = Reset;
       if (!customColors) {
          switch (type) {
@@ -154,7 +154,7 @@ export class LoggingBase {
             }
          });
       }
-      let file = getCallerFile()
+      let file = caller || getCallerFile();
       let date = new Date().toISOString().replace(/T/, ' ').replace(/\..+/, '');
       let prefix = `[${LoggingTypes[type]}][${file.file}:${file.line}][${date}]: `;
       let message_lines = mb.split("\n").map(line => prefix + line);
@@ -381,6 +381,24 @@ function getCallerFile() {
    return { file: undefined, line: 0 };
 }
 
+function getCallerFromExisting(err: Error): { file: string, line: number } {
+   let lines = err.stack.split("\n");
+   let current = path.basename(__filename);
+   lines.shift();// removing first line
+   while (lines.length > 0) {
+      let line = lines.shift();
+      let matches = line.match(/[a-zA-Z]+[.][a-zA-Z]+[:][0-9]+/g)
+      if (matches && matches.length > 0) {
+         let [f, line] = matches[0].split(":")
+         if (f != current) {
+            return {
+               file: f, line: Number(line)
+            };
+         }
+      }
+   }
+}
+
 export enum LoggingTypes {
    Log,
    Warning,