gm picture

console.log("ok")

/*
var images = require("images");
var fs = require("fs");
var path = require("path");

var images = require("images");

images(path.join(__dirname, './image/A1.jpg')) //Load image from file
//加载图像文件
.size(400) //Geometric scaling the image to 400 pixels width
//等比缩放图像到400像素宽
//.draw(images("logo.png"), 10, 10) //Drawn logo at coordinates (10,10)
//在(10,10)处绘制Logo
.save("output.jpg", { //Save the image to a file,whih quality 50
quality : 50 //保存图片到文件,图片质量为50
});

*/
//编码图片依赖模块https://github.com/zhangyuanwei/node-images
var chokidar = require('chokidar');
var images = require("images");
var fs = require("fs");
var path = require("path");
var gm = require('gm');
function readFile(src,dst){
console.log(src);
console.log(dst);

if(fs.existsSync(src)){

//读取文件夹
fs.readdir(src,function(err,files){
if(err){
throw err;
}

files.forEach(function(filePath){
console.log(filePath);


var url = path.join(__dirname,src+"\\"+filePath),
dest = path.join(__dirname,dst+"\\"+filePath);
// console.log(url);
//console.log(dest);
fs.stat(url,function(err,stats){
if(err)throw err;

//是文件
if(stats.isFile()){
//正则判定是图片
//if(/.*\.(jpg)$/i.test(url)){
encoderjpg(url,dest);
/*}else if(/.*\.(png|gif)$/i.test(url)){
encoderjpg(url,dest);

}*/
}else if(stats.isDirectory()){
exists(url,dest,readFile);
}

})
});

});


}else{
throw "no files,no such!"
}
}

//这里处理文件跟复制有点相关，输出要检测文件是否存在，不存在要新建文件
function exists(url,dest,callback){

fs.exists(dest,function(exists){
if(exists){
callback && callback(url,dest);
}else{
//第二个参数目录权限 ，默认0777(读写权限)
fs.mkdir(dest,0777,function(err){
if (err) throw err;
callback && callback(url,dest);
});
}
});
}

function encoderjpg(url,destImg){
console.log(sourceImg);
console.log(destImg);
var sourceImg = images(url);
/* console.log(sourceImg.width());
console.log(sourceImg.height());*/
console.log(sourceImg)
console.log(/.*\.(jpg)$/i.test(url))
if(/.*\.(jpg)$/i.test(url)){
if(sourceImg.width()>600){
sourceImg //加载图像文件
.size(700) //等比缩放图像到1000像素宽
// .draw(images("pficon.jpg"),10,10) //在(10,10)处绘制Logo
.save(destImg,{
quality :80 //保存图片到文件,图片质量为50
})
}else{
sourceImg.save(destImg);
}
}else if(/.*\.(png|gif)$/i.test(url)){

if(sourceImg.width()>250){
gm(url).quality(80)
.resize(250)
.write(destImg, function (err) {
if (!err) console.log('done');
console.log(err)
})
}else{
sourceImg.save(destImg);
}

}

 

/*gm(sourceImg).quality(40)
.resize(700)
.write(destImg, function (err) {
if (!err) console.log('done');
console.log(err)
});*/
/* (new images(sourceImg)).encode(sourceImg, 100, 100,
function (data, error) {
console.log("xx");
// fs.writeFile("out.png", destImg, "binary", function(err) {
// console.log(err); // writes out file without error, but it's not a valid image
//});
}
);*/
}

 

var watcher = chokidar.watch("image", {
ignored: /(^|[\/\\])\../,//ignored: /node_modules|\.git/,
ignoreInitial: false,
persistent: true,
followSymlinks: true,
useFsEvents: true,
usePolling: true
});
var watcherFlag=false;
/*watcher
.on('add', function(path) {*/
/* console.log(path);
console.log(path);
encoderjpg(path,path.replace("image\\","out\\")); })
/* .on('addDir', function(path) { console.log('Directory', path, 'has been added'); })
.on('change', function(path) { console.log('File', path, 'has been changed'); })
.on('unlink', function(path) { console.log('File', path, 'has been removed'); })
.on('unlinkDir', function(path) { console.log('Directory', path, 'has been removed'); })
.on('error', function(error) { console.log('Error happened', error); })
.on('ready', function() { console.log('Initial scan complete. Ready for changes.');watcherFlag=true; })
.on('raw', function(event, path, details) { encoderjpg(path,path.replace("image","out"))})*/
// 监听增加，修改，删除文件的事件
var watcherFlag=false;
watcher.on('all', (event, path) => {

switch (event) {

// break;
case 'add':
if(watcherFlag)encoderjpg(path,path.replace("image\\","out\\"));
// if(!!watcherFlag){
//// console.log("YES"+watcherFlag);
// encoderjpg(path,path.replace("image\\","out\\"));
// }else{
// console.log("NO"+watcherFlag);
//encoderjpg(path,path.replace("image\\","out\\"));
// }

// }

console.log('Add.');
break;

case 'change':
console.log("change");
break;
case 'unlink':

break;
default:
break;
}
}).on('ready', function() {
watcherFlag=true;
console.log('Ready');
})
;
//readFile('image','out');

 

 

/*module.exports = readFile;*/