grunt-image-info - npm Package Compare versions

Comparing version 0.1.1 to 0.1.2

package.json

 {
   "name": "grunt-image-info",
-  "version": "0.1.1",
+  "version": "0.1.2",
   "description": "Grunt task to generate CSS, SASS, or JSON files with image dimension info",
@@ -5,0 +5,0 @@ "main": "tasks/grunt-image-info.js",

src/grunt-image-info.js

@@ -60,5 +60,41 @@ var json2css = require('json2css'),
             that = this;
+
+        var imageSizeCache = {};
+        var newImageSizeCache = {};
+        var cacheFile = options.cacheFile;
+
+        if (cacheFile) {
+            try {
+               imageSizeCache = JSON.parse(fs.readFileSync(cacheFile));
+            } catch (e) {
+            }
+        }
         var gmInstance = options.imageMagick ? gm.subClass({ imageMagick: true }) : gm;
 
+        /**
+         * Retrieves size data from a file from either graphicsmagick or the cache
+         * @param  {String}   filename
+         * @param  {Function} callback
+         */
+        var getSizeData = function (filename, callback) {
+            var relFilename = path.relative(__dirname, filename);
+            var cachedMTime = String(imageSizeCache[relFilename] && imageSizeCache[relFilename].mtime);
+            var newMTime = String(cacheFile ? fs.statSync(filename).mtime : "");
 
+            if (cachedMTime === newMTime) {
+                newImageSizeCache[relFilename] = imageSizeCache[relFilename];
+                callback(null, imageSizeCache[relFilename].data);
+                return;
+            }
+
+            gmInstance(filename).size(function (err, data) {
+                if (err) return callback(err);
+                newImageSizeCache[relFilename] = {
+                    mtime: newMTime,
+                    data: data
+                };
+                callback(err, data);
+            });
+        };
+
         // Verify all properties are here
@@ -72,3 +108,2 @@ if (this.files.length === 0) {
 
-
         var processFile = function(file, callback) {
@@ -83,3 +118,3 @@ if (!file.dest || file.src.length === 0) {
                 // obtain the size of an image
-                gmInstance(src).size(function(err, size) {
+                getSizeData(src, function(err, size) {
                     if (err) {
@@ -107,3 +142,3 @@ callback(err);
             };
-            
+
             // Hitting spawn EMFILE without this.
@@ -152,2 +187,10 @@ var maxGmConcurrency = 10;
 
+            if (cacheFile) {
+                try {
+                    fs.writeFileSync(cacheFile, JSON.stringify(newImageSizeCache));
+                } catch (e) {
+                    grunt.log.warn('Unable to write cache file: ' + cacheFile);
+                }
+            }
+
             done(true);
@@ -159,2 +202,2 @@ });
     grunt.registerMultiTask('image_info', 'Generate image info', imageInfoTask);
-};
+};

New alerts

New author

Supply chain risk

A new npm collaborator published a version of the package for the first time. New collaborators are usually benign additions to a project, but do indicate a change to the security surface area of a package.

Found 1 instance in 1 package

Improved metrics

Total package byte prevSize

11076

increased by16.55%

Lines of code

200

increased by25%

Worsened metrics

Number of medium supply chain risk alerts

1

increased byInfinity%

No dependency changes