我正在为我们的构建过程添加watchify
但是我想提出一个前提条件来监视运行,那就是更改的文件通过了我们的linting步骤(使用{{1} })。
我在考虑这样做:
ESLint
问题是linting步骤是异步的,因此在捆绑完成之前它没有完成(它也会抛出,所以我可能需要使用function runBrowserify(watch){
var babel = babelify.configure({
optional: ['es7.objectRestSpread']
});
var b = browserify({
entries: './app/main.js',
debug: true,
extensions: ['.jsx', '.js'],
cache: {},
packageCache: {},
fullPaths: true
})
.transform(babel);
if(watch) {
// if watch is enable, wrap this bundle inside watchify
b = watchify(b);
b.on('update', function(ids) {
//run the linting step
lint(ids);
//run the watchify bundle step
gutil.log(gutil.colors.blue('watchify'), 'Started');
bundleShare(b);
});
b.on('time', function (time) {
gutil.log(gutil.colors.blue('watchify'), 'Finished', 'after', gutil.colors.magenta(time), gutil.colors.magenta('ms'));
});
}
bundleShare(b);
}
function bundleShare(b) {
b.bundle()
.pipe(source('main.min.js'))
.pipe(gulp.dest('./dist'));
}
function lint(glob) {
return gulp.src(glob)
.pipe(eslint())
.pipe(eslint.format())
.pipe(eslint.failOnError());
}
来阻止它终止plumber
工序)。
那么在我致电watch
之前,我该怎样做一个先决条件?
答案 0 :(得分:2)
我能够使用上面提到的闭包方法做到这一点。我还将Browserify和Watchify代码移动到每个构建都可以利用的辅助函数中。
gulpfile.js (部分)
gulp.task('build:dev', buildDev);
gulp.task('lint:js', lintJS);
function lintJS(callback) {
return gulp.src(['src/**/*.js', 'src/**/*.jsx', '!src/js/vendor/**/*.*',])
.pipe(eslint())
.pipe(eslint.format())
.pipe(eslint.failAfterError());
}
function buildDev(callback) {
var bundler = getBundler('src/js/app.jsx', { debug: true }, callback);
var watcher = getWatcher(bundler, rebundle);
function rebundle() {
lintJS(callback);
return watcher.bundle()
.pipe(source('bundle.min.js'))
.pipe(buffer())
.pipe(gulp.dest('dist/js'));
}
rebundle();
// Call watch methods here, i.e.: watchHTML()
return callback();
}
/****************************** Helper functions ******************************/
/**
* Gets the default Browserify bundler used by all builds.
*
*
* @param path A string representing where Browserify should start from
* @param options An Object containing options for the bundler
* @param callback The Gulp callback function from the calling task
* @return A basically configured Browserify bundler
*/
function getBundler(path, options, callback) {
var bundler = browserify(path, { debug: options.debug, cache: {}, packageCache: {} });
bundler.transform(babelify);
bundler.on('log', gutil.log);
bundler.on('error', gutil.log.bind(gutil.colors.red, 'Browserify Error'));
return bundler;
}
/**
* Gets the default Watchify watcher used by dev builds. By default, the watcher
* will rebundle the Browserify package when an update occurs.
*
* @param bundle The Browserify bundler object
* @param rebundle A function to perform when Watchify detects a code update
* @return A basically configured Watchify watcher
*/
function getWatcher(bundle, rebundle) {
var watcher = watchify(bundle);
watcher.on('update', rebundle);
return watcher;
}
对于我的测试和prod构建,我不使用Watchify(因此没有rebundle()方法)所以我保留了lint:js'任务作为依赖:
gulp.task('build:test', ['lint:js'], buildTest);
gulp.task('build:prod', ['lint:js'], buildProd);