Add Trace logging level; bump version

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@extollo/lib",
-  "version": "0.9.9",
+  "version": "0.9.10",
   "description": "The framework library that lifts up your code.",
   "main": "lib/index.js",
   "types": "lib/index.d.ts",

src/service/Logging.ts

@@ -1,4 +1,4 @@
-import {Logger, LoggingLevel, LogMessage} from '../util'
+import {DebuggingTraceIsNotAnError, Logger, LoggingLevel, LogMessage} from '../util'
 import {Singleton} from '../di'
 
 /**
@@ -109,6 +109,10 @@ export class Logging {
         this.writeLog(LoggingLevel.Verbose, output, force)
     }
 
+    public trace(output: unknown, force = false): void {
+        this.writeLog(LoggingLevel.Trace, output, force)
+    }
+
     /**
      * Helper function to write the given output, at the given logging level, to
      * all of the registered loggers.
@@ -119,10 +123,15 @@ export class Logging {
      */
     protected writeLog(level: LoggingLevel, output: unknown, force = false): void {
         const message = this.buildMessage(level, output)
+        const trace = DebuggingTraceIsNotAnError.getTrace()
+        const traceMessage = this.buildMessage(LoggingLevel.Trace, trace)
         if ( this.currentLevel >= level || force ) {
             for ( const logger of this.registeredLoggers ) {
                 try {
                     logger.write(message)
+                    if ( this.currentLevel >= LoggingLevel.Trace ) {
+                        logger.write(traceMessage)
+                    }
                 } catch (e) {
                     console.error('logging error', e)  // eslint-disable-line no-console
                 }

src/support/bus/Bus.ts

@@ -200,7 +200,6 @@ export class Bus<TEvent extends Event = Event> extends Unit implements EventBus<
         if ( Array.isArray(config.connectors) ) {
             for ( const connector of (config.connectors as BusConnectorConfig[]) ) {
                 this.logging.verbose(`Creating bus connection of type: ${connector.type}`)
-                this.logging.verbose(new Error().stack)
                 if ( connector.type === 'redis' ) {
                     await this.connect(this.make(RedisBus))
                 }

src/util/error/DebuggingTraceIsNotAnError.ts

@@ -0,0 +1,15 @@
+/**
+ * Error class used to generate debug stack traces, not thrown.
+ */
+export class DebuggingTraceIsNotAnError extends Error {
+    static getTrace(): string {
+        const oldLimit = Error.stackTraceLimit
+        if ( oldLimit < 50 ) {
+            Error.stackTraceLimit = 50
+        }
+
+        const trace = (new this()).stack || String(new this())
+        Error.stackTraceLimit = oldLimit
+        return trace
+    }
+}

src/util/index.ts

@@ -15,6 +15,7 @@ export * from './const/http'
 
 export * from './error/ErrorWithContext'
 export * from './error/MethodNotSupportedError'
+export * from './error/DebuggingTraceIsNotAnError'
 
 export * from './logging/Logger'
 export * from './logging/StandardLogger'

src/util/logging/Logger.ts

@@ -44,6 +44,8 @@ export abstract class Logger {
             return color.cyan('  debug')
         case LoggingLevel.Verbose:
             return color.gray('verbose')
+        case LoggingLevel.Trace:
+            return color.dim('  trace')
         case LoggingLevel.Silent:
             return color.gray(' silent')
         }

src/util/logging/types.ts

@@ -9,6 +9,7 @@ enum LoggingLevel {
     Info = 4,
     Debug = 5,
     Verbose = 6,
+    Trace = 7,
 }
 
 /**