Gulp Monitor file changes and copy to the specified directory

Directory modification, creation, deletion is not supported temporarily
var gulp = require (' gulp '); var fs = require (' FS '); var path = require (' path '); var = require (' gulp-less '); var sass = re Quire (' Gulp-sass '); var minifycss = require (' gulp-minify-css '); var concat = require (' Gulp-concat '); var uglify = require ( ' gulp-uglify '); var rename = require (' gulp-rename '); var del = require (' del '); var tinylr = require (' TINY-LR '); var server = t INYLR (); var port = 1234;//Browser-syncvar Browsersync = require (' Browser-sync ');//create multi-level directory function mkdirs (dirname, Mode,        Callback) {fs.exists (dirname, function (exists) {if (exists) {callback ();            }else{//console.log (Path.dirname (dirname));            Mkdirs (Path.dirname (dirname), mode, function () {Fs.mkdir (dirname, mode, callback);        }); }    });}        Copy file function CopyFile (OldPath, NewPath) {console.log (' copy ' +oldpath+ ' +newpath ');    var stat = Fs.lstatsync (OldPath);        if (Stat.isdirectory ()) {Console.log (oldpath+ ' is directory '); return false;   } var readstream = Fs.createreadstream (OldPath);    var writestream = Fs.createwritestream (NewPath);    Readstream.pipe (Writestream);    Readstream.on (' End ', function () {console.log (' copy end ');    });    Readstream.on (' Error ', function () {console.log (' copy error '); });}        Gulp.task (' Default ', function () {}), Gulp.task (' CSS ', function () {return gulp.src (' src/*.css ')//compressed file   . Pipe (Gulp.dest (' target/css '))//output folder. Pipe (Minifycss ()); Execute compression});//Compile Sassgulp.task (' sass ', function () {gulp.src ('./src/css/*.scss '). Pipe (Sass ()). Pipe (Rename (        {suffix: '. Min '}) . Pipe (Minifycss ()). Pipe (Gulp.dest (' target/css ');});        Gulp.task (' JS ', function () {return gulp.src ('./src/js/*.js '). Pipe (Gulp.dest (' Target/js '))//Output Main.js to Folder . Pipe (rename ({suffix: '. Min '))//rename the compressed file name. PIPE (Uglify ())//compression. PIPE (Gulp.dest (' Target/js ')  ); Output}); Gulp.task (' HTML ', function () {returnGulp.src ('./src/*.php '). Pipe (Gulp.dest (' target/'));            Output});//Listener Task Run Statement Gulp Watchgulp.task (' Watch ', function () {Server.listen (port, function (ERR) {if (err) {        return Console.log (ERR);            }//Copy modified file Gulp.watch (' src/**/** ', function (e) {console.log (e);            var oldpath = E.path;            var NewPath = oldpath.replace (' \\src\\ ', ' \\target\\ ');            var newdirpathtemp = newpath.split ("\ \");            var Currentpath = Fs.realpathsync ('. ');            var newdirpath = [];            for (var i = 0; i < newdirpathtemp.length-1; i++) {newdirpath[i] = Newdirpathtemp[i];            } Newdirpath = Newdirpath.join ("\ \");            Newdirpath = Newdirpath.replace (Currentpath, ");            Newdirpath = Newdirpath.replace (/\\/g, "/");            Newdirpath = Newdirpath.replace ("/", "./");                        Console.log (' current path ' +newdirpath); Modified or incremented if (' Added ' = = E.type | | ' changed ' = = E.type | |                     ' renamed ' = = E.type) {//Determine if the directory exists, does not exist then create fs.exists (Newdirpath, function (exists) {                        if (exists) {//console.log ("folder exists");                    CopyFile (OldPath, NewPath);                        } else {//console.log ("folder does not exist, then create directory");                                                Mkdirs (Newdirpath);                        Delay, wait for directory creation to complete setTimeout (function () {CopyFile (OldPath, NewPath);                    }, 200);            }                }); } else if (' deleted ' = = E.type) {//delete Fs.unlink (NewPath, function (err) {console.log (' delete ')                +NEWPATH+ERR);            });        }        });        Monitor sass Gulp.watch (' Src/css/*.scss ', function () {Gulp.run (' sass ');        }); Monitor JS Gulp.watch ('./src/js/*.js ', function () {           Gulp.run (' JS ');                });        Listen for HTML Gulp.watch ('./src/*.php ', function () {gulp.run (' html ');            });        });        Real-time sync to browser browsersync.init ([' target/css/* ', ' target/js/* ', ' target/*.html ', ' target/*.php '), {/* static service    Server: {baseDir: "target"} *///proxy mode proxy: "dz.com"}); });

　　

Gulp Monitor file changes and copy to the specified directory