Set log level with env variable and add more

config.default.json

@@ -1,5 +1,4 @@
 {
-  "loglevel": "info",
   "http": {
     "port": 3002
   },

filters.js

@@ -2,6 +2,9 @@ const _ = require('lodash');
 const Canvas = require('canvas');
 const { _drawImage } = require('./imageex');
 
+const logger = require('loglevel');
+logger.setLevel(process.env.LOGLEVEL || 'info');
+
 const { createCanvas, Image } = Canvas;
 
 const filters = {
@@ -13,7 +16,7 @@ const filters = {
       const tmpCtx = tmpCanvas.getContext('2d');
       _drawImage(tmpCtx, frame.canvas, x, y, basicProps);
       const multiplyProps = _.extend({}, props, { attributes: { globalCompositeOperation: 'multiply' } });
-      console.log('multiply props:', multiplyProps);
+      logger.debug('multiply props:', multiplyProps);
       _drawImage(tmpCtx, source.frames[0].canvas, x, y, multiplyProps);
 
 

imageex.js

@@ -7,6 +7,9 @@ const mime = require('mime-types');
 const { GifReader } = require('omggif');
 const GifEncoder = require('gifencoder');
 
+const logger = require('loglevel');
+logger.setLevel(process.env.LOGLEVEL || 'info');
+
 const { createCanvas } = Canvas;
 const { Image } = Canvas;
 
@@ -33,13 +36,13 @@ function _drawImage(ctx, img, x, y, args = {}) {
     ctx.save();
     if (args.transform) {
       _.each(args.transform, (val, prop) => {
-        console.log(`Transforming ${prop} by ${val}`);
+        logger.debug(`Transforming ${prop} by ${val}`);
         ctx[prop](...val);
       });
     }
     if (args.attributes) {
       _.each(args.attributes, (val, prop) => {
-        console.log(`Setting ${prop} to ${val}`);
+        logger.debug(`Setting ${prop} to ${val}`);
         ctx[prop] = val;
       });
     }
@@ -62,7 +65,7 @@ class ImageEx {
       this.type = result.type;
       this.data = result.data;
       if (this.type === 'image/gif') {
-        console.log(uri, 'loaded');
+        logger.debug(uri, 'loaded');
         this.initGif();
       } else {
         this.initStatic();
@@ -76,10 +79,10 @@ class ImageEx {
     const reader = new GifReader(new Uint8Array(this.data));
     this.width = reader.width;
     this.height = reader.height;
-    console.log('Decoding frames');
+    logger.debug('Decoding frames');
     this.frames = this.decodeFrames(reader);
 
-    console.log('Frames decoded!');
+    logger.debug('Frames decoded!');
     this.renderAllFrames();
 
     return this;
@@ -128,7 +131,7 @@ class ImageEx {
     let saved;
     for (let i = 0; i < this.frames.length; ++i) {
       const frame = this.frames[i];
-      console.log('Rendering frame', frame);
+      logger.debug('Rendering frame', frame);
       if (typeof disposeFrame === 'function') disposeFrame();
 
       switch (frame.disposal) {
@@ -281,7 +284,7 @@ class CanvasEx {
 
     return new Promise(resolve => {
       buf.on('finish', () => {
-        console.log('Render completed');
+        logger.debug('Render completed');
         resolve(buf.getContents());
       });
     });

index.js

@@ -12,7 +12,7 @@ const config = require('./config.default.json');
 const filters = require('./filters.js');
 
 const logger = require('loglevel');
-logger.setLevel(config.loglevel || 'info');
+logger.setLevel(process.env.LOGLEVEL || 'info');
 
 try {
   _.extend(config, require(`./${process.env.CONFIG || 'config'}`)); // eslint-disable-line global-require