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    writable-stream-stack

    1.0.1 • Public • Published

    writable-stream-stack

    Make a node stream pipeline. New transforms can be pushed to apply before the data reaches the dest stream

    Usage

    var Stack = require('writable-stream-stack');

    ws = Stack(dest)

    ws = Stack(tr1, tr2,..., dest)

    ws = Stack([tr1, tr2,..., dest])

    ws is a Writable stream, and each chunk written in will reach the writable dest, before handled by the transform pipeline tr1, tr2,...

    ws.on('done', cb)

    ws fires done after dest has finished.

    ws.push(tr)

    Add transform tr to the very beginning of the pipeline.

    ws.pop()

    Delete the first transform from the pipeline.

    Example

    var fs = require('fs');
    var vfs = require('vinyl-fs');
    var path = require('path');
    var Stack = require('writable-stream-stack');
    var source = require('vinyl-source-stream');
     
    var DEST = path.join(__dirname, 'files');
    var dest = createDestStream('b.js', DEST)
     
    fs.createReadStream(path.join(__dirname, 'files/a.js'))
        .pipe(dest);
     
    dest.on('done', function () {
        fs.createReadStream(path.join(DEST, 'b.js'))
            .pipe(process.stdout);
    });
     
    function createDestStream(filename, dir) {
        return Stack(
            source(filename),
            vfs.dest(dir)
        );
    }

    a.js:

    module.exports = function () {
        console.log('a');
    };

    output:

    module.exports = function () {
        console.log('a');
    };
    

    Install

    npm i writable-stream-stack

    DownloadsWeekly Downloads

    0

    Version

    1.0.1

    License

    MIT

    Last publish

    Collaborators

    • zoubin