svelte-sequential-preprocessor

A Svelte preprocessor that wraps preprocessors to force them to be called sequentially.

Overview

Svelte evaluates preprocessors by running all markup preprocessors first, then script and finally styles. Some preprocesses may not work if other preprocessors haven't been run. For example, svelte-image uses svelte.parse() internally, so svelte-preprocess needs to be run before if any scss is present.

Installation

Using npm:

$ npm i -D svelte-sequential-preprocessor

Usage

With rollup-plugin-svelte

// rollup.config.js
import svelte from 'rollup-plugin-svelte';
import seqPreprocessor from 'svelte-sequential-preprocessor'
import autoPreprocess from 'svelte-preprocess'
import image from 'svelte-image'

export default {
  ...,
  plugins: [
    svelte({
      preprocess: seqPreprocessor([ autoPreprocess(), image() ])
    })
  ]
}

With svelte-loader

  ...
  module: {
    rules: [
      ...
      {
        test: /\.(html|svelte)$/,
        exclude: /node_modules/,
        use: {
          loader: 'svelte-loader',
          options: {
            preprocess: require('svelte-sequential-preprocessor')([ require('svelte-preprocess'), require('svelte-image')])
          },
        },
      },
      ...
    ]
  }
  ...

With Sapper

import seqPreprocessor from 'svelte-sequential-preprocessor';
import autoPreprocess from 'svelte-preprocess'
import image from 'svelte-image'

const preprocess = seqPreprocessor([ autoPreprocess(), image() ]);

export default {
  client: {
    plugins: [
      svelte({
        preprocess,
        // ...
      }),
  },
  server: {
    plugins: [
      svelte({
        preprocess,
        // ...
      }),
    ],
  },
};

CHANGELOG

2.0.2

• Fixed #186: Now passing map, attributes and toString through

2.0.0

• Upgraded to Svelte 4

1.0.0

• Promoted to production release.
• Upgraded all packages

0.0.7

• Fixed linting

0.0.6

• Upgraded packages

0.0.5

• Upgraded packages

0.0.4

• Upgraded packages

0.0.3

• Corrected more mistakes in README

0.0.2

• Corrected typo in README

0.0.1

• First release