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gulp-map-transform

v0.0.4

Published

A gulp plugin for transforming file references inside a file with a different stream

Downloads

12

Readme

gulp-map-transform

Version CircleCI License

Easily transform virtual paths inside any file to real paths

Install

Install via npm:

npm install --save-dev gulp-map-transform

Usage

Transforming scss paths to compiled css paths

Given this section of a html file:

...
<head>
  <link rel="stylesheet" href="@styles/test.scss" />
</head>
...

And this configuration inside your gulpfile

const { src, dest } = require('gulp');
const sass = require('gulp-sass');
const mapTransform = require('gulp-map-transform');

const OUT_PATH = '/dist/folder';

src('/html/files/**/*.html')
  .pipe(
    mapTransform({
      search: /href="@styles\/(.*?).scss"/gi,
      replace: /"(.*?)"/i,
      rootPath: OUT_PATH,
      rewrite: (path) => path.replace('@styles', 'css/files'),
      transform: (stream) => stream
        .pipe(sass())
        .pipe(dest(path.join(OUT_PATH, 'css')))
    })
  )
  .pipe(dest(OUT_PATH))

This will generate the following html file after compiling the css file:

...
<head>
  <link rel="stylesheet" href="/css/files/test.css" />
</head>
...

Options

| Name | Type | Required | Description | -- | -- | -- | -- | search | RegExp | yes | This expression is used to identify in which location you want to execute a transformation of the content | replace | RegExp | yes | This is used to replace the path of the file inside a result of the search matches | rewrite | Function | yes | Use this to tell what and how to replace the path inside the string found by the replace expression | transform | Function | yes | In this callback you get a separate stream to handle all your files already present with the real path | rootPath | string | no | The root path to which the transfomed file paths will be appended (with path.relative())

License

See the LICENSE file for license rights and limitations (MIT).