Gulp-sniff NPM

gulp-sniff

Filename gathering plugin for gulp. You can sniff through the gulp pipes and collect all filenames that marshaled through them.

It is an extension of the JohnyDays's gulp-filenames plugin, but migrated (back) to JS, fixed some bugs, and added some features.

Usage

First, install gulp-sniff as a development dependency:

npm install --save-dev gulp-sniff

Then, add it to your gulpfile.js:

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

var stream = gulp.src("src/*.js")
	.pipe(sniff("js")) // prints all files matched with gulp.src("src/*.js")
	.pipe(gulp.dest("dest"));

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

var stream = gulp.src("src/*.js")
	.pipe(sniff("js", {noDirectReport: true})) // doesn't print anymore
	.pipe(gulp.dest("dest"));

stream.on('end', function() {
	console.log("JS files:", sniff.get("js")); // prints all captured filenames
});

or more condensed :) (used for testing in interactive node):

var gulp = require('gulp');
var sniff = require('gulp-sniff');
var stream = gulp.src("*.js").pipe(sniff("js")).pipe(gulp.dest("./dest"));
var e = stream.on('end', function() {console.log("js files:", sniff.get("js"));});

More advanced version with parallel streams:

var gulp = require('gulp');
var sniff = require('gulp-sniff');
var es = require('event-stream');

var stream1 = gulp.src("*.js")
	.pipe(sniff("js"))
	.pipe(gulp.dest("dest"));

var stream2 = gulp.src("*.json")
	.pipe(sniff("json"))
	.pipe(gulp.dest("dest"));

var stream = es.merge(stream1, stream2);

var e = stream.on('end', function() {
	console.log("JS files:", sniff.get("js"));
});

or more condensed :) (used for testing in interactive node):

var gulp = require('gulp');
var sniff = require('gulp-sniff');
var es = require('event-stream');

var stream1 = gulp.src("*.js").pipe(sniff("js")).pipe(gulp.dest("dest"));
var stream2 = gulp.src("*.json").pipe(sniff("json")).pipe(gulp.dest("dest"));
var stream = es.merge(stream1, stream2);
var e = stream.on('end', function() {console.log("JS files:", sniff.get("js"));});