Optimize for hexo server performance

lib/responsive_images.js

@@ -4,7 +4,7 @@ var minimatch = require('minimatch')
 var streamToArray = require('stream-to-array')
 var streamToArrayAsync = Promise.promisify(streamToArray)
 var getNewPath = require('./new_path')
-var generateImages = require('./generate_images')
+var sharp = require('sharp')
 
 function generateResponsiveImages() {
   var hexo = this
@@ -24,22 +24,22 @@ function generateResponsiveImages() {
       return
     }
 
-    var stream = route.get(filePath);
-    return streamToArrayAsync(stream)
-      .then(function(arr) {
-        if(typeof arr[0] === 'string'){
-          return arr[0];
-        }else{
-          return Buffer.concat(arr);
-        }
-      }).then(function (buffer) {
-        return generateImages(buffer, sizes)
-      }).then(function (allImages) {
-        return Promise.all(allImages.map(function (res) {
-          var newPath = getNewPath(filePath, {prefix: res.name})
-          return hexo.route.set(newPath, res.output)
+    var stream = route.get(filePath)
+    return streamToArrayAsync(stream).then(function (arr) {
+      if(typeof arr[0] === 'string'){
+        return arr[0];
+      } else{
+        return Buffer.concat(arr);
+      }
+    }).then(function (buffer) {
+      return Promise.all(sizes.map(function (sizeSets) {
+        return Promise.all(Object.keys(sizeSets).map(function (name) {
+          var newPath = getNewPath(filePath, {prefix: name})
+          console.log('SIEMA', filePath, newPath)
+          return route.set(newPath, resizeImageFn(buffer, sizeSets[name]))
         }))
-      })
+      }))
+    })
   })
 }
 
@@ -54,4 +54,10 @@ function getSizesFor(filePath, rules) {
   }, [])
 }
 
+function resizeImageFn(buffer, size) {
+  return function () {
+    return sharp(buffer).resize(size.width, size.height, size.options).toBuffer()
+  }
+}
+
 module.exports = generateResponsiveImages

package.json

@@ -1,6 +1,6 @@
 {
   "name": "hexo-filter-responsive-images",
-  "version": "1.0.0",
+  "version": "1.0.1",
   "description": "Generate mutliple version of images for responsive Hexo blogs",
   "main": "index.js",
   "directories": {