Allow to control padding of level

src/logger.ts

@@ -4,6 +4,7 @@ import {get_color} from './color'
 export const writers = new Map<string, Writer>
 export let options: Options = {
     format: "[$time] $level $namespace :",
+    pad_level: true,
     verbose: true,
 }
 
@@ -51,8 +52,12 @@ function log(message: any[], level: Level, namespace: string) : void {
     const head = options.format
         .replace("$time", new Date().toISOString())
         .replace("$namespace", namespace)
-    const head_bw = head.replace('$level', level_to_string(level, false))
-    const head_color = head.replace("$level", level_to_string(level, true))
+
+    let lvl = get_string(level)
+    if (options.pad_level) lvl = pad(lvl)
+
+    const head_color = head.replace('$level', get_color(level)(lvl))
+    const head_bw = head.replace('$level', lvl)
 
     for (const [name, writer] of writers.entries()) {
         const options = writer.options
@@ -64,13 +69,8 @@ function log(message: any[], level: Level, namespace: string) : void {
     }
 }
 
-function level_to_string(level: Level, with_color: boolean) : string {
-    const str = get_string(level)
-
-    if (!with_color) return str
-
-    const color = get_color(level)
-    return color(str)
+function pad(str: string) : string {
+    return str + " ".repeat("WARNING".length - str.length)
 }
 
 function get_string(level: Level) : string {
@@ -81,4 +81,4 @@ function get_string(level: Level) : string {
         case Level.WARNING: return "WARNING"
         case Level.ERROR: return "ERROR  "
     }
-}
+}

src/types.ts

@@ -1,5 +1,6 @@
 export type Options = {
     format: string,
+    pad_level: boolean,
     verbose: boolean,
 }