imagemin - npm Package Compare versions

Comparing version 0.1.3 to 0.2.4

index.js

@@ -0,249 +1,123 @@
+'use strict';
+
+var pipeline = require('multipipe');
+var spawn = require('win-spawn');
+var through = require('through2');
+
 /**
- * 代码修改自grunt-img
+ * Initialize `Imagemin` with options
+ *
+ * @param {Object} opts
+ * @api private
  */
-'use strict';
-var fs = require('fs');
-var path = require('path');
-var child_process = require('child_process');
-var spawn = child_process.spawn;
-//非系统模块
-var which = require('which');
-var log = require('./lib/log');
-var pngcrush = require('node-pngcrush');
 
-var emptyFn = function() {};
+function Imagemin(opts) {
+    opts = opts || {};
+    this.opts = opts;
+    this.optimizer = this._getOptimizer(opts.ext);
+    this.optimizationLevel = opts.optimizationLevel || 7;
+}
 
-var win32 = process.platform === 'win32';
-var png = ['.png', '.bmp', '.gif', '.pnm', '.tiff'],
-    jpegs = ['.jpg', 'jpeg'];
-var imagemin = module.exports = function(dir, destDir, cb) {
-    destDir = destDir || '';
-    if (typeof destDir === 'function') {
-        cb = destDir;
-    }
-    if (typeof cb !== 'function') {
-        cb = emptyFn;
-    }
+/**
+ * Optimize GIF, JPEG, and PNG images
+ *
+ * @api public
+ */
 
+Imagemin.prototype.optimize = function () {
+    var cp = this.optimizer();
+    var stream = through();
 
-    var files = [];
-    if (Array.isArray(dir)) {
-        dir.forEach(function(v) {
-            imagemin(v, destDir, cb);
-        });
-        return;
-    }
+    return pipeline(stream, cp.stdin, cp.stdout);
+};
 
-    if (fs.statSync(dir).isDirectory()) {
-        //遍历目录
-        recurse(dir, function(filepath, rootdir, subdir, filename) {
-            files.push(filepath);
-        });
-    } else {
-        //是文件
-        files.push(dir);
-    }
+/**
+ * Get the optimizer for a desired file extension
+ *
+ * @param {String} ext
+ * @api private
+ */
 
-    var pngfiles = files.filter(function(file) {
-        return !!~png.indexOf(path.extname(file).toLowerCase());
-    });
+Imagemin.prototype._getOptimizer = function (ext) {
+    ext = ext ? ext.toLowerCase() : null;
 
-    var jpgfiles = files.filter(function(file) {
-        return !!~jpegs.indexOf(path.extname(file).toLowerCase());
-    });
+    var optimizers = {
+        '.gif': this._optimizeGif,
+        '.jpg': this._optimizeJpeg,
+        '.jpeg': this._optimizeJpeg,
+        '.png': this._optimizePng
+    };
 
-
-    log.writeln('Running imagemin task... ');
-    pngc(pngfiles, destDir, function() {
-        jpegtran(jpgfiles, {}, destDir, function(err) {
-            if (err) {
-                log.error(err);
-            }
-            cb();
-        });
-    });
+    return optimizers[ext];
 };
 
-function pngc(files, output, cb) {
-    cb = cb || emptyFn;
-    if (!files.length) {
-        return cb();
-    }
+/**
+ * Optimize a GIF image
+ *
+ * @api private
+ */
 
-    
-    var isOutDir = false;
-    if (output) {
-        var ext = path.extname(output).toLowerCase();
-        if ( !! ~png.indexOf(ext)) {
-            //文件
+Imagemin.prototype._optimizeGif = function () {
+    var args = ['-w'];
+    var gifsicle = require('gifsicle').path;
 
-        } else {
-            if (!/\/$/.test(output)) {
-                output += path.sep;
-            }
-
-            if (!fs.existsSync(output)) {
-                output = '';
-            }
-            //目录
-            isOutDir = true;
-        }
+    if (this.opts.interlaced) {
+        args.push('--interlace');
     }
-    var file;
-    while (file = files.shift()) {
-        var data = fs.readFileSync(file);
-        var buffer = pngcrush.compress(data);
-        log.writeln('*Processing: '.cyan + path.normalize(file));
-        var outfile = file;
-        var min = file,
-            max = file;
-        if (output !== '') {
-            outfile = isOutDir ? output + path.basename(file) : output;
-            min = outfile;
-        } else {
-            min = {
-                size: buffer.length
-            };
-            max = {
-                size: data.length
-            };
-        }
-        log.writeln('Output file: '.cyan + path.normalize(outfile));
-        fs.writeFileSync(outfile, buffer, {
-            flags: 'wb'
-        });
-        min_max_stat(min, max);
-    }
-    cb();
-}
 
-function jpegtran(files, opts, output, cb) {
-    opts = opts || {};
-    cb = cb || function() {};
-    opts.args = opts.args ? opts.args : ['-copy', 'none', '-optimize', '-outfile', 'jpgtmp.jpg'];
+    return spawn(gifsicle, args);
+};
 
-    which_bin('jpegtran', function(err, cmdpath) {
-        if (err) return not_installed('jpegtran', cb);
-        (function run(file) {
-            if (!file) return cb();
+/**
+ * Optimize a JPEG image
+ *
+ * @api private
+ */
 
-            log.writeln('*Processing: '.cyan + path.normalize(file));
+Imagemin.prototype._optimizeJpeg = function () {
+    var args = ['-copy', 'none', '-optimize'];
+    var jpegtran = require('jpegtran-bin').path;
 
-            var jpegtran = spawn(cmdpath, opts.args.concat(file), function() {});
+    if (this.opts.progressive) {
+        args.push('-progressive');
+    }
 
-            var outputPath;
-            if (output) {
-                var ext = path.extname(output).toLowerCase();
-                if ( !! ~jpegs.indexOf(ext)) {
-                    //文件
-                    outputPath = output;
-                } else {
-                    if (!/\/$/.test(output)) {
-                        output += path.sep;
-                    }
-                    outputPath = output + path.basename(file);
-                }
-
-                try {
-                    fs.readFileSync(outputPath);
-                } catch (err) {
-                    fs.writeFileSync(outputPath);
-                }
-                log.writeln('Output file: '.cyan + path.normalize(outputPath));
-            } else {
-                outputPath = file;
-            }
-
-            jpegtran.stdout.pipe(process.stdout);
-            jpegtran.stderr.pipe(process.stderr);
-
-            jpegtran.on('exit', function(code) {
-                if (code) return log.warn('jpgtran exited unexpectedly with exit code ' + code);
-                // output some size info about the file
-                min_max_stat('jpgtmp.jpg', file);
-                // copy the temporary optimized jpg to original file
-                fs.createReadStream('jpgtmp.jpg')
-                    .pipe(fs.createWriteStream(outputPath)).on('close', function() {
-                        //删除
-                        fs.unlinkSync('jpgtmp.jpg');
-                        run(files.shift());
-                    });
-            });
-        }(files.shift()));
-    });
+    return spawn(jpegtran, args);
 };
 
+/**
+ * Optimize a PNG image
+ *
+ * @api private
+ */
 
-// Output some size info about a file, from a stat object.
+Imagemin.prototype._optimizePng = function () {
+    var args = ['-strip', 'all', '-quiet'];
+    var optipng = require('optipng-bin').path;
+    var pngquant;
 
-function min_max_stat(min, max) {
-    min = typeof min === 'string' ? fs.statSync(min) : min;
-    max = typeof max === 'string' ? fs.statSync(max) : max;
-    log.writeln('Uncompressed size: ' + String(max.size).green + ' bytes.');
-    log.writeln('Compressed size: ' + String(min.size).green + ' bytes (' + String(max.size - min.size).green + ' bytes = ' + (String((max.size - min.size) / max.size * 100).slice(0, 5) + '%').green + ' decrease).');
+    if (typeof this.optimizationLevel === 'number') {
+        args.push('-o', this.optimizationLevel);
+    }
 
-};
+    if (this.opts.pngquant) {
+        pngquant = require('pngquant-bin').path;
+        return spawn(optipng, args).stdout.pipe(spawn(pngquant, ['-']));
+    }
 
-function not_installed(cmd, cb) {
-    log.log('[Running ' + cmd + '...](error)');
-
-    log.writeln([
-        'In order for this task to work properly, :cmd must be',
-        'installed and in the system PATH (if you can run ":cmd" at',
-        'the command line, this task should work)'
-    ].join(' ').replace(/:cmd/g, cmd));
-    log.writeln('Skiping ' + cmd + ' task');
-    if (cb) cb();
+    return spawn(optipng, args);
 };
 
-var unixifyPath = function(filepath) {
-    if (win32) {
-        return filepath.replace(/\\/g, '/');
-    } else {
-        return filepath;
-    }
-};
-
 /**
- * 遍历
- * @param  {[type]}   rootdir       [description]
- * @param  {Function} callback      [description]
- * @param  {[type]}   subdir        [description]
- * @param  {[type]}   judgeFunction [description]
- * @return {[type]}                 [description]
+ * Module exports
  */
 
-function recurse(rootdir, callback, subdir, judgeFunction) {
-    var abspath = subdir ? path.join(rootdir, subdir) : rootdir;
-    subdir = subdir || '';
-    judgeFunction = typeof judgeFunction === 'function' ? judgeFunction : function() {
-        return true;
-    };
-    fs.readdirSync(abspath).forEach(function(filename) {
-        var filepath = path.join(abspath, filename);
-        if (fs.statSync(filepath).isDirectory() && judgeFunction(filename)) {
-            recurse(rootdir, callback, unixifyPath(path.join(subdir, filename)), judgeFunction);
-        } else {
-            judgeFunction(filename) && callback(unixifyPath(filepath), rootdir, subdir, filename, judgeFunction);
-        }
-    });
+module.exports = function (opts) {
+    var imagemin = new Imagemin(opts);
 
-}
-
-// **which** helper, wrapper to isaacs/which package plus some fallback logic
-// specifically for the win32 binaries in vendor/ (optipng.exe, jpegtran.exe)
-
-function which_bin(cmd, cb) {
-    if (!win32 || !/optipng|jpegtran/.test(cmd)) return which(cmd, cb);
-
-    var jpegtran = './vendor/jpegtran-turbo/win32/jpegtran.exe';
-
-    if (process.arch === 'x64') {
-        jpegtran = './vendor/jpegtran-turbo/win64/jpegtran.exe';
+    if (!imagemin.optimizer) {
+        return through();
     }
 
-    var cmdpath = cmd === 'optipng' ? './vendor/optipng-0.7.4-win32/optipng.exe' :
-        jpegtran;
-
-    cb(null, path.join(__dirname, cmdpath));
-};
+    return imagemin.optimize();
+};

package.json

 {
-    "name": "imagemin",
-    "version": "0.1.3",
-    "description": "A tool to optimize png and jpg images with optipng & jpegtran",
-    "keywords": [
-        "png",
-        "jpg",
-        "image optimizer",
-        "compress image",
-        "image",
-        "web performance"
-    ],
-    "homepage": "https://github.com/ksky521/imagemin",
-    "bugs": "https://github.com/ksky521/imagemin/issues",
-    "author": {
-        "name": "Theowang",
-        "email": "[e-mail]",
-        "url": "http://js.in"
-    },
-    "main": "index.js",
-    "bin": {
-        "imagemin": "bin/imagemin"
-    },
-    "repository": {
-        "type": "git",
-        "url": "git://github.com/ksky521/imagemin.git"
-    },
-    "dependencies": {
-        "colors": "~0.6.2",
-        "which": "~1.0.5",
-        "optimist": "~0.6.0",
-        "node-pngcrush": "~0.0.9",
-        "read": "~1.0.4"
-    },
-    "scripts": {
-        "install": "node ./bin/install",
-        "uninstall": "node ./bin/uninstall"
-    },
-    "engines": {
-        "node": ">=0.6.0"
-    },
-    "licenses": {
-        "type": "MIT"
-    }
-
-}
+  "name": "imagemin",
+  "version": "0.2.4",
+  "description": "Minify GIF, JPEG and PNG images",
+  "license": "MIT",
+  "repository": "kevva/image-min",
+  "author": {
+    "name": "Kevin Mårtensson",
+    "email": "[e-mail]",
+    "url": "https://github.com/kevva"
+  },
+  "engines": {
+    "node": ">=0.10.0"
+  },
+  "scripts": {
+    "test": "mocha --reporter list --timeout 500000"
+  },
+  "files": [
+    "index.js"
+  ],
+  "keywords": [
+    "extract",
+    "tar",
+    "tar.gz",
+    "zip"
+  ],
+  "dependencies": {
+    "multipipe": "0.0.2",
+    "through2": "^0.4.0",
+    "win-spawn": "^2.0.0"
+  },
+  "devDependencies": {
+    "mocha": "^1.17.1",
+    "rimraf": "^2.2.6"
+  },
+  "optionalDependencies": {
+    "gifsicle": "^0.1.0",
+    "jpegtran-bin": "^0.2.0",
+    "optipng-bin": "^0.3.2",
+    "pngquant-bin": "^0.1.6"
+  }
+}

README.md

@@ -1,54 +0,70 @@
-imagemin
-=============
+# image-min [![Build Status](https://secure.travis-ci.org/kevva/image-min.png?branch=master)](http://travis-ci.org/kevva/image-min)
 
-A tool which fork from [grunt-img][grunt-img] to optimize PNG and JPG images with [pngcrush][node-pngcrush] & [jpegtran][jpegtran] ([jpegtran-turbo][jpegtran-turbo] on win32).
+> Minify GIF, JPEG and PNG images seamlessly with Node.js.
 
-## Getting Started
+## Install
 
-First, be sure that you have [jpegtran][jpegtran] installed in your system.
-
-### for Mac users
-You can install with [homebrew][homebrew]
-```shell
-brew install jpeg
+```bash
+npm install --save image-min
 ```
 
-### for Linux users
-Debian, Ubuntu and Mint
-```shell
-apt-get install libjpeg libjpeg-progs
-```
-Both libraries are easy to find for RPM distributions too.
+## Usage
 
-### for Windows users
-Don't worry because both libraries are included.
+```js
+var fs = require('fs');
+var imagemin = require('image-min');
+var path = require('path');
 
-### Install
-```shell
-npm install imagemin
+var src = fs.createReadStream('img.gif');
+var ext = path.extname(src.path);
+
+src
+    .pipe(imagemin({ ext: ext }))
+    .pipe(fs.createWriteStream('img-minified' + ext));
 ```
 
-## How to use
+## API
 
-### for shell
-```shell
-imagemin file/path
-imagemin file/path -o new/file/path
-```
-### for nodejs
-```js
-var imagemin = require('imagemin');
-imagemin(filePath, destDir, callback);
-```
+### imagemin(opts)
 
-Credits
----------------
-* Grunt-image [Helder Santana](http://heldr.com)
-* node-pngcrush [node-pngcrush](https://github.com/xiangshouding/node-pngcrush)
+Optimize a `GIF`, `JPEG`, or `PNG` image by providing a an `ext`. Use the
+options below (optionally) to configure how your images are optimized.
 
-[node-build-script]: http://github.com/h5bp/node-build-script
-[grunt-img]: https://github.com/heldr/grunt-img
-[jpegtran]: http://jpegclub.org/jpegtran/
-[jpegtran-turbo]: http://libjpeg-turbo.virtualgl.org/
-[node-pngcrush]: https://github.com/xiangshouding/node-pngcrush
-[homebrew]: http://mxcl.github.com/homebrew/
+## Options
+
+### ext
+
+Type `String`  
+Default: `undefined`
+
+File extension used by imagemin to determine which optimizer to use.
+
+### interlaced (GIF only)
+
+Type: `Boolean`  
+Default: `false`
+
+Interlace gif for progressive rendering.
+
+### pngquant (PNG only)
+
+Type: `Boolean`  
+Default: `false`
+
+Whether to enable [pngquant](https://github.com/pornel/pngquant) lossy compression.
+
+### progressive (JPEG only)
+
+Type: `Boolean`  
+Default: `false`
+
+Lossless conversion to progressive.
+
+## Used by
+
+* [gulp-imagemin](https://github.com/sindresorhus/gulp-imagemin)
+* [grunt-contrib-imagemin](https://github.com/gruntjs/grunt-contrib-imagemin)
+
+## License
+
+[MIT License](http://en.wikipedia.org/wiki/MIT_License) © [Kevin Mårtensson](http://kevinmartensson.com)

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Dependency changes

• + Addedmultipipe@0.0.2

• + Addedthrough2@^0.4.0

• + Addedwin-spawn@^2.0.0

• + Addedabbrev@1.1.1(transitive)

• + Addedadm-zip@0.4.16(transitive)

• + Addedajv@6.12.6(transitive)

• + Addedansi-regex@2.1.1(transitive)

• + Addedansi-styles@1.0.02.2.1(transitive)

• + Addedasn1@0.2.6(transitive)

• + Addedassert-plus@1.0.0(transitive)

• + Addedasynckit@0.4.0(transitive)

• + Addedaws-sign2@0.7.0(transitive)

• + Addedaws4@1.13.2(transitive)

• + Addedbalanced-match@1.0.2(transitive)

• + Addedbcrypt-pbkdf@1.0.2(transitive)

• + Addedbin-build@0.1.1(transitive)

• + Addedbin-check@0.1.5(transitive)

• + Addedbin-wrapper@0.2.40.3.4(transitive)

• + Addedblock-stream@0.0.9(transitive)

• + Addedbrace-expansion@1.1.11(transitive)

• + Addedcaseless@0.12.0(transitive)

• + Addedchalk@0.4.01.1.3(transitive)

• + Addedcombined-stream@1.0.8(transitive)

• + Addedconcat-map@0.0.1(transitive)

• + Addedcore-util-is@1.0.21.0.3(transitive)

• + Addeddashdash@1.14.1(transitive)

• + Addeddecompress@0.2.5(transitive)

• + Addeddelayed-stream@1.0.0(transitive)

• + Addeddownload@0.1.19(transitive)

• + Addedduplexer@0.1.2(transitive)

• + Addedduplexer2@0.0.1(transitive)

• + Addedeach-async@0.1.3(transitive)

• + Addedecc-jsbn@0.1.2(transitive)

• + Addedescape-string-regexp@1.0.5(transitive)

• + Addedexecutable@0.1.3(transitive)

• + Addedext-list@0.2.0(transitive)

• + Addedext-name@1.0.1(transitive)

• + Addedextend@3.0.2(transitive)

• + Addedextsprintf@1.3.0(transitive)

• + Addedfast-deep-equal@3.1.3(transitive)

• + Addedfast-json-stable-stringify@2.1.0(transitive)

• + Addedfind-file@0.1.4(transitive)

• + Addedforever-agent@0.6.1(transitive)

• + Addedform-data@2.3.3(transitive)

• + Addedfs.realpath@1.0.0(transitive)

• + Addedfstream@0.1.31(transitive)

• + Addedget-stdin@0.1.0(transitive)

• + Addedget-urls@0.1.2(transitive)

• + Addedgetpass@0.1.7(transitive)

• + Addedgifsicle@0.1.7(transitive)

• + Addedglob@7.2.3(transitive)

• + Addedgot@0.2.0(transitive)

• + Addedgraceful-fs@3.0.12(transitive)

• + Addedhar-schema@2.0.0(transitive)

• + Addedhar-validator@5.1.5(transitive)

• + Addedhas-ansi@2.0.0(transitive)

• + Addedhas-color@0.1.7(transitive)

• + Addedhttp-signature@1.2.0(transitive)

• + Addedinflight@1.0.6(transitive)

• + Addedinherits@2.0.4(transitive)

• + Addedis-typedarray@1.0.0(transitive)

• + Addedisarray@0.0.1(transitive)

• + Addedisstream@0.1.2(transitive)

• + Addedjpegtran-bin@0.2.8(transitive)

• + Addedjsbn@0.1.1(transitive)

• + Addedjson-schema@0.4.0(transitive)

• + Addedjson-schema-traverse@0.4.1(transitive)

• + Addedjson-stringify-safe@5.0.1(transitive)

• + Addedjsprim@1.4.2(transitive)

• + Addedlog-symbols@1.0.2(transitive)

• + Addedmime-db@1.52.0(transitive)

• + Addedmime-types@2.1.35(transitive)

• + Addedminimatch@3.1.2(transitive)

• + Addedminimist@1.2.8(transitive)

• + Addedmkdirp@0.3.50.5.6(transitive)

• + Addedmout@0.9.1(transitive)

• + Addedmultipipe@0.0.2(transitive)

• + Addednatives@1.1.6(transitive)

• + Addednopt@2.2.1(transitive)

• + Addedoauth-sign@0.9.0(transitive)

• + Addedobject-assign@0.3.1(transitive)

• + Addedobject-keys@0.4.0(transitive)

• + Addedonce@1.4.0(transitive)

• + Addedoptipng-bin@0.3.11(transitive)

• + Addedpath-is-absolute@1.0.1(transitive)

• + Addedperformance-now@2.1.0(transitive)

• + Addedpngquant-bin@0.1.7(transitive)

• + Addedpsl@1.10.0(transitive)

• + Addedpunycode@2.3.1(transitive)

• + Addedqs@6.5.3(transitive)

• + Addedreadable-stream@1.0.34(transitive)

• + Addedrequest@2.88.2(transitive)

• + Addedrimraf@2.7.1(transitive)

• + Addedsafe-buffer@5.2.1(transitive)

• + Addedsafer-buffer@2.1.2(transitive)

• + Addedsshpk@1.18.0(transitive)

• + Addedstream-combiner@0.0.4(transitive)

• + Addedstring_decoder@0.10.31(transitive)

• + Addedstrip-ansi@0.1.13.0.1(transitive)

• + Addedsupports-color@2.0.0(transitive)

• + Addedtar@0.1.20(transitive)

• + Addedtempfile@0.1.3(transitive)

• + Addedthrough2@0.4.2(transitive)

• + Addedtough-cookie@2.5.0(transitive)

• + Addedtunnel-agent@0.6.0(transitive)

• + Addedtweetnacl@0.14.5(transitive)

• + Addedunderscore.string@2.3.3(transitive)

• + Addeduri-js@4.4.1(transitive)

• + Addeduuid@1.4.23.4.0(transitive)

• + Addedverror@1.10.0(transitive)

• + Addedwin-spawn@2.0.0(transitive)

• + Addedwrappy@1.0.2(transitive)

• + Addedxtend@2.1.2(transitive)

• - Removedcolors@~0.6.2

• - Removednode-pngcrush@~0.0.9

• - Removedoptimist@~0.6.0

• - Removedread@~1.0.4

• - Removedwhich@~1.0.5

• - Removedcolors@0.6.2(transitive)

• - Removedminimist@0.0.10(transitive)

• - Removedmute-stream@0.0.8(transitive)

• - Removednode-pngcrush@0.0.9(transitive)

• - Removedoptimist@0.6.1(transitive)

• - Removedread@1.0.7(transitive)

• - Removedwhich@1.0.9(transitive)

• - Removedwordwrap@0.0.3(transitive)