Detalhes do pacote

@gerhobbelt/gulp-fncallback

itgalaxy5MIT2.0.3-8

Custom callback for streams

gulp, gulpplugin, gulpfriendly, callback

readme (leia-me)

gulp-fncallback

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Add own callback to streaming

Install

npm install --dev @gerhobbelt/gulp-fncallback

Usage transformFunction

var less = require('gulp-less');
var callback = require('@gerhobbelt/gulp-fncallback');

gulp.task('less', function () {
  gulp.src('./less/**/*.less')
    .pipe(less({
      paths: [ path.join(__dirname, 'less', 'includes') ]
    }))
    .pipe(callback(function (file, enc, cb) {
      console.log(file);
      cb();
    }))
    .pipe(gulp.dest('./public/css'));
});

Usage transformFunction and flushFunction

var less = require('gulp-less');
var callback = require('@gerhobbelt/gulp-fncallback');

gulp.task('less', function () {
  gulp.src('./less/**/*.less')
    .pipe(less({
      paths: [ path.join(__dirname, 'less', 'includes') ]
    }))
    .pipe(callback(function (file, enc, cb) {
      console.log(file);
      cb();
    }, function (callback) {
      callback();
    }))
    .pipe(gulp.dest('./public/css'));
});

Usage transformFunction with error

var less = require('gulp-less');
var callback = require('@gerhobbelt/gulp-fncallback');

gulp.task('less', function () {
  gulp.src('./less/**/*.less')
    .pipe(less({
      paths: [ path.join(__dirname, 'less', 'includes') ]
    }))
    .pipe(callback(function (file, enc, cb) {
      console.log(file);
      cb('error');
    }))
    .pipe(gulp.dest('./public/css'));
});

Usage transformFunction with new file

var less = require('gulp-less');
var callback = require('@gerhobbelt/gulp-fncallback');

gulp.task('less', function () {
  gulp.src('./less/**/*.less')
    .pipe(less({
      paths: [ path.join(__dirname, 'less', 'includes') ]
    }))
    .pipe(callback(function (file, enc, cb) {
      var newFile = ...
      cb(null, newFile);
    }))
    .pipe(gulp.dest('./public/css'));
});

Usage transformFunction with new file and append old file

var less = require('gulp-less');
var callback = require('@gerhobbelt/gulp-fncallback');

gulp.task('less', function () {
  gulp.src('./less/**/*.less')
    .pipe(less({
      paths: [ path.join(__dirname, 'less', 'includes') ]
    }))
    .pipe(callback(function (file, enc, cb) {
      var newFile = ...
      cb(null, newFile, true);
    }))
    .pipe(gulp.dest('./public/css'));
});

Options

once - Run callback once

var less = require('gulp-less');
var callback = require('@gerhobbelt/gulp-fncallback');

gulp.task('less', function () {
  gulp.src('./less/**/*.less')
    .pipe(less({
      paths: [ path.join(__dirname, 'less', 'includes') ]
    }))
    .pipe(callback(function (file, enc, cb) {
      console.log(file);
      cb();
    }, {
      once: true
    }))
    .pipe(gulp.dest('./public/css'));
});