Question

我已经准备好与Stylus，Jade和tiny-lr合作。我的问题是，当我保存一个玉文件时，它开始编译它们全部，因此在我正在编译的文件被编译之前，在第一个复制到目标的文件上重新加载火，导致我不得不手动刷新。我已经使用＆＃34; gulp-changed＆＃34;修复了这个问题。但我似乎无法配置它或其他东西。以前有人有这个问题吗？我发布了我的Gulp文件，所以你可以看一下。

可以在此处找到问题的时间线图：https://www.dropbox.com/s/3g37oy25s9mq969/jade_compile_frefresh_problem.png?dl=0

感谢任何帮助！

    'use strict';

    var gulp = require('gulp');
    var jade = require('gulp-jade');
    var gutil = require('gulp-util');
    var stylus = require('gulp-stylus');
    var jeet = require('jeet');
    var nib = require('nib');
    var uglify = require('gulp-uglify');
    var lr = require('tiny-lr')();
    // var mainBowerFiles = require('main-bower-files');

    // Define sources object
    var sources = {
      jade: "jade/**/*.jade",
      partials: "partials/**/*.jade",
      stylus: "styl/**/*.styl",
      scripts: "js/**/*.js"
    };

    // Define destinations object

    var destinations = {
      html: "dist/",
      css: "dist/css",
      js: "dist/js"
    };

    // Compile and copy Jade
    gulp.task("jade", function(event) {
      return gulp.src(sources.jade)
      .pipe(jade({
        pretty: true
      })).pipe(gulp.dest(destinations.html));
    });

    // Compile and copy Stylus
    gulp.task("stylus", function(event) {
      return gulp.src(sources.stylus).pipe(stylus({
        use: [nib(), jeet()],
        import: [
          'nib',
          'jeet'
        ],
        style: "compressed"
      })).pipe(gulp.dest(destinations.css));
    });

    // Minify and copy all JavaScript
    gulp.task('scripts', function() {
      gulp.src(sources.scripts)
        .pipe(uglify())
        .pipe(gulp.dest(destinations.js));
    });

    // Consolidate Bower Files and copy to /dist/js/
    // gulp.task('bower-files', function() {
    //   return gulp.src(mainBowerFiles(/* options */), {})
    //     .pipe(gulp.dest(destinations.js));
    // });

    // Watch for file changes and execute tasks
    gulp.task("watch", function() {
      gulp.watch(sources.jade, ["jade"]);
      gulp.watch(sources.partials, ["jade"]);
      gulp.watch(sources.stylus, ["stylus"]);
      gulp.watch(sources.scripts, ["scripts"]);
      gulp.watch('dist/**/*', refresh);
    });

    // Live Reload
    gulp.task('serve', function () {
      var express = require('express');
      var app = express();
      app.use(require('connect-livereload')());
      app.use(express.static(__dirname+'/dist/'));
      app.listen(4000, '0.0.0.0');
      lr.listen(35729);
    });

    // Define default task
    gulp.task("default", ["jade", "stylus", "scripts", "serve", "watch"]);

    // Refresh function
    var refresh = function(event) {
      var fileName = require('path').relative(__dirname, event.path);
      gutil.log.apply(gutil, [gutil.colors.magenta(fileName), gutil.colors.cyan('built')]);
      lr.changed({
        body: { files: [fileName] }
      });
    };

Answer 1

我通过在gulpfile.js中编写一个简单的javascript函数来实现这一点

我这样做是因为当我编译我的sass文件时，livereload会运行大约10次，这个方法只会运行一次。

我的gulpfile.js

gulp.task('watch', function() {
    $.livereload.listen();

    gulp.watch([
        path.join(config.path.app, 'media/js/**/*.js'),
        path.join(config.path.app, 'media/css/**/*.css'),
        path.join(config.path.app, 'templates/**/*.html')
    ]).on('change', stackReload);

    // a timeout variable
    var timer = null;

    // actual reload function
    function stackReload() {
        var reload_args = arguments;

        // Stop timeout function to run livereload if this function is ran within the last 250ms
        if (timer) clearTimeout(timer);

        // Check if any gulp task is still running
        if (!gulp.isRunning) {
            timer = setTimeout(function() {
                $.livereload.changed.apply(null, reload_args);
            }, 250);
        }
    }

});

Answer 2

我做到了。我必须做的是创建一个名为＆＃34; Reload＆＃34;的新任务，将依赖关系放在它上面并在每个其他任务之后运行它。这是新的Gulpfile＆＃34;：

＆＃39;使用严格的＆＃39;;

var gulp = require('gulp');
var jade = require('gulp-jade');
var gutil = require('gulp-util');
var stylus = require('gulp-stylus');
var jeet = require('jeet');
var nib = require('nib');
var uglify = require('gulp-uglify');
var livereload = require('gulp-livereload');

var sources = {
  jade: "jade/**/*.jade",
  partials: "partials/**/*.jade",
  stylus: "styl/**/*.styl",
  scripts: "js/**/*.js"
};

// Define destinations object
var destinations = {
  html: "dist/",
  css: "dist/css",
  js: "dist/js"
};

// Compile and copy Jade
gulp.task("jade", function(event) {
  return gulp.src(sources.jade)
  .pipe(jade({pretty: true}))
  .pipe(gulp.dest(destinations.html))
});

// Compile and copy Stylus
gulp.task("stylus", function(event) {
  return gulp.src(sources.stylus).pipe(stylus({
    use: [nib(), jeet()],
    import: [
      'nib',
      'jeet'
    ],
    style: "compressed"
  })).pipe(gulp.dest(destinations.css));
});

// Minify and copy all JavaScript
gulp.task('scripts', function() {
  gulp.src(sources.scripts)
    .pipe(uglify())
    .pipe(gulp.dest(destinations.js));
});

// Server
gulp.task('server', function () {
  var express = require('express');
  var app = express();
  app.use(require('connect-livereload')());
  app.use(express.static(__dirname+'/dist/'));
  app.listen(4000, '0.0.0.0');
});

// Watch sources for change, executa tasks
gulp.task('watch', function() {
  livereload.listen();
  gulp.watch(sources.jade, ["jade", "refresh"]);
  gulp.watch(sources.partials, ["jade", "refresh"]);
  gulp.watch(sources.stylus, ["stylus", "refresh"]);
  gulp.watch(sources.scripts, ["scripts", "refresh"]);
});

// Refresh task. Depends on Jade task completion
gulp.task("refresh", ["jade"], function(){
  livereload.changed();
  console.log('LiveReload is triggered');
});

// Define default task
gulp.task("default", ["jade", "stylus", "scripts", "server", "watch"]);

Answer 3

您可以使用gulp-livereload并编写自己的回调函数，以便在需要时发送重新加载事件：

var livereload = require('gulp-livereload'),
    path = require('path');

module.exports = function(gulp) {
    gulp.task('watch', function() {
        livereload.listen();
        gulp.watch([
            path.resolve(__dirname, '../src/**/*.js'),
            path.resolve(__dirname, '../index.html')
        ]).on('change', function(event) {
            livereload.changed();
            console.log('File', event.path, 'was', event.type);
            console.log('LiveReload is triggered');
        });
    });
};

UPD：因此，对于您的情况，您可以这样做：

1）安装gulp-livereload：

npm install gulp-livereload --save-dev

2）在gulp-livereload

中加入gulpfile.js

var livereload = require('gulp-livereload');

3）用watch任务替换旧代码，我的意思是：

// Watch for file changes and execute tasks
gulp.task("watch", function() {
  gulp.watch(sources.jade, ["jade"]);
  gulp.watch(sources.partials, ["jade"]);
  gulp.watch(sources.stylus, ["stylus"]);
  gulp.watch(sources.scripts, ["scripts"]);
  gulp.watch('dist/**/*', refresh);
});

并用新代码替换它：

gulp.task('watch', function() {
    livereload.listen();
    gulp.watch([
        sources.jade,
        sources.partials,
        sources.stylus,
        sources.scripts,
        'dist/**/*'
    ]).on('change', function(event) {
        livereload.changed();
        console.log('File', event.path, 'was', event.type);
        console.log('LiveReload is triggered');
    });
});

4）cource检查此配置是否符合您的要求。

Answer 4

编译typescript然后使用livereload刷新时遇到了类似的问题。为了解决这个问题，我创建了“监视任务”，在完成工作后运行刷新任务。

以下是根据您使用的模式从您的问题中获取的最小代码示例：

'use strict';

var gulp = require('gulp');
var jade = require('gulp-jade');
var livereload = require('gulp-livereload');

var sources = {
  jade: "jade/**/*.jade"
};

var destinations = {
  html: "dist/"
};

// Compile and copy Jade
gulp.task("jade", function() {
  return gulp.src(sources.jade)
  .pipe(jade({pretty: true}))
  .pipe(gulp.dest(destinations.html));
});

gulp.task('refresh', function() { return livereload.reload(); });

// execute task, then when finished, refresh
gulp.task("watch-jade", ["jade"], function() { return gulp.start('refresh'); });

gulp.task("watch", function() {  
  livereload.listen();
  gulp.watch(sources.jade, ["watch-jade"]);
});

我可以设置gulp livereload在所有文件编译后运行吗？

4 个答案: