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gulp-flatmap
Advanced tools
map each file in a stream into multiple files that are piped out
$ npm install --save-dev gulp-flatmap
var gulp = require('gulp');
var flatmap = require('gulp-flatmap');
var uglify = require('gulp-uglify');
var path = require('path');
var concat = require('gulp-concat');
gulp.task('default', function () {
return gulp.src('*.json')
.pipe(flatmap(function(stream, file){
var contents = JSON.parse(file.contents.toString('utf8'));
//contents.files is an array
return gulp.src(contents.files)
//uglify each file individually
.pipe(uglify())
//combine the files
.pipe(concat(path.basename(file.path)));
}))
.pipe(gulp.dest('dist'));
});
The flatmap method takes one argument, a function. This function is called once for each file piped to flatmap
and is passed a stream as its first argument and the vinyl file as its second argument. The stream contains only one file.
You can now pipe this stream through as many steps as you want, before returning it from the function. All the streams returned from flatmap
will be combined and their contents will be emited by flatmap
.
MIT © Marius Gundersen
FAQs
map each file in a stream into multiple files that are piped out
The npm package gulp-flatmap receives a total of 13,173 weekly downloads. As such, gulp-flatmap popularity was classified as popular.
We found that gulp-flatmap demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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