Added support for removing embeded color sequence for file appender

BlueCocoa · BlueCocoa · commit f25c8ed78234 · 2020-05-02T05:24:18.000+08:00
Signed-off-by: Cocoa &lt;0xbbc@0xbbc.com&gt;
diff --git a/lib/appenders/file.js b/lib/appenders/file.js
@@ -53,6 +53,15 @@ function fileAppender(file, layout, logSize, numBackups, options, timezoneOffset
   let writer = openTheStream(file, logSize, numBackups, options);
 
   const app = function (loggingEvent) {
+    if (options.removeColor === true) {
+      let data = loggingEvent.data
+      for (let i = 0; i < data.length; i++) {
+        let d = data[i]
+        d = d.replace(/\x1b\[[0-9]{1,2}m/g, '')
+        data[i] = d
+      }
+      loggingEvent.data = data
+    }
     if (!writer.write(layout(loggingEvent, timezoneOffset) + eol, "utf8")) {
       process.emit('log4js:pause', true);
     }
