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- replace rollup config with vitejs - use vite dev server during development to take advantage of hot module replacement (HMR) - add vite service using Vite library to load css and js assets - update package.json scripts and remove unnecessary dependencies - update scripts/bundle-prepare.sh closes #107
68 lines
2.2 KiB
TypeScript
68 lines
2.2 KiB
TypeScript
// This plugin adds a `manifest-css.json` file for css assets to help reference them from the backend
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// Adapted from https://github.com/ElMassimo/vite_ruby/blob/main/vite-plugin-ruby/src/manifest.ts
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import path from "path";
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import { OutputBundle } from "rollup";
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import type { Plugin, ResolvedConfig } from "vite";
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interface AssetsManifestChunk {
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src?: string;
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file: string;
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}
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type AssetsManifest = Map<string, AssetsManifestChunk>;
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// Internal: Returns the filename without the last extension.
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function withoutExtension(filename: string) {
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return filename.substr(0, filename.lastIndexOf("."));
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}
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// Internal: Writes a manifest file that allows to map an entrypoint asset file
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// name to the corresponding output file name.
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export function ManifestCSS(): Plugin {
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let config: ResolvedConfig;
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// Internal: For stylesheets Vite does not output the result to the manifest,
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// so we extract the file name of the processed asset from the Rollup bundle.
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function extractChunkStylesheets(
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bundle: OutputBundle,
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manifest: AssetsManifest
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) {
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const cssFiles = new Set(
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Object.values(config.build.rollupOptions.input as Record<string, string>)
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.filter((file) => new RegExp(`\\.css$`).test(file))
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.map((file) => path.relative(config.root, file))
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);
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Object.values(bundle)
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.filter((chunk) => chunk.type === "asset" && chunk.name)
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.forEach((chunk) => {
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// NOTE: Rollup appends `.css` to the file so it's removed before matching.
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// See `resolveEntrypointsForRollup`.
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const src = withoutExtension(chunk.name!);
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if (cssFiles.has(src)) {
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manifest.set(src, { file: chunk.fileName, src });
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}
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});
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}
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return {
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name: "vite-assets-manifest",
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apply: "build",
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enforce: "post",
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configResolved(resolvedConfig: ResolvedConfig) {
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config = resolvedConfig;
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},
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async generateBundle(_options, bundle) {
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const manifest: AssetsManifest = new Map();
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extractChunkStylesheets(bundle, manifest);
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this.emitFile({
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fileName: "manifest-css.json",
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type: "asset",
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source: JSON.stringify(Object.fromEntries(manifest), null, 2),
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});
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},
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};
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}
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