bluwy

{
  "ansi-styles@6.2.1": 0,
  "semver@7.6.2": 1,
  "supports-color@9.4.0": 0,
  "chalk@5.3.0": 0,
  "tslib@2.6.2": 1,
  "debug@4.3.4": 1,
  "has-flag@5.0.1": 0,
  "color-convert@2.0.1": 1,
  "color-name@2.0.0": 1,

bluwy

Rollup build optimization research

Rollup builds doesn't scale well in large apps. You need to increase Node's memory with --max-old-space-size=4096 to handle all the modules. This is one of Vite's highest-rated issue.

This file documents various findings and attempts to improve this issue.

How Rollup works

NOTE: I've only been reading Rollup's source code for a while, so some of these may not be accurate.

bluwy

bluwy

import { preprocess } from 'svelte/compiler'

/**
 * @typedef {import("svelte/types/compiler/preprocess").PreprocessorGroup} PreprocessorGroup
 * @param {PreprocessorGroup[]} preprocessors
 * @returns {PreprocessorGroup[]}
 */
export function sequence(preprocessors) {
  return preprocessors.map((preprocessor) => ({
    markup({ content, filename }) {

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export function reloadImgOnFail(img, opts = {}) {
  opts = ensureOpts(opts)

  let retryCount = 0

  function handleError() {
    if (retryCount >= opts.maxRetryCount) {
      if (opts.fallbackSrc && img.src !== opts.fallbackSrc) {
        img.src = opts.fallbackSrc
      }

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export default function sveltePreprocessSvg() {
  return {
    markup({ content }) {
      content = content.trim()
      if (content.startsWith('<svg ') && content.endsWith('</svg>')) {
        return { code: `{@html \`${content}\`}` }
      } else {
        return { code: content }
      }
    },

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import fs from 'fs/promises'
import { defineConfig } from 'vite'
import svelte from '@sveltejs/vite-plugin-svelte'

export default defineConfig({
  plugins: [svelteSvgPlugin(), svelte({ extensions: ['.svelte', '.svg'] })],
})

function svelteSvgPlugin() {
  return {

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#!/bin/bash
# Removes old revisions of snaps
# CLOSE ALL SNAPS BEFORE RUNNING THIS
set -eu

LANG=C snap list --all | awk '/disabled/{print $1, $3}' |
    while read snapname revision; do
        snap remove "$snapname" --revision="$revision"
    done

bluwy

Assuming

1. Latest version is v1
2. Real underlying version is v1.0.0
3. A new release is to be published at v1.0.1 and v1

Steps

1. Push commits
2. Create new release for v1.0.1

bluwy

import { createFilter } from '@rollup/pluginutils'
import postcss from 'postcss'
import loadConfig from 'postcss-load-config'

/**
 * @typedef {{
 *   include: import('@rollup/pluginutils').FilterPattern,
 *   exclude: import('@rollup/pluginutils').FilterPattern
 * }} Options
 */