112 lines
3.4 KiB
TypeScript
112 lines
3.4 KiB
TypeScript
// Import native Node libraries.
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import path from "node:path";
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import process from "node:process";
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import fsp from "node:fs/promises";
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// Import Esbuild and associated plugins.
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import esbuild from "esbuild";
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import copyPlugin from "esbuild-copy-static-files";
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import {sassPlugin} from "esbuild-sass-plugin";
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// Import PostCSS and associated plugins.
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import cssnano from "cssnano";
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import postcss from "postcss";
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// Import local functions.
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import {createManifest} from "./manifest.js";
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import {createWebExtConfig} from "./web-ext.js";
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/**
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* Create an absolute path from a given relative one, using the directory
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* this file is located in as the base.
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*
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* @param relative The relative path to make absolute.
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* @returns The absolute path.
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*/
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function toAbsolutePath(relative: string): string {
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return new URL(relative, import.meta.url).pathname;
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}
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// Create variables based on the environment.
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const browser = process.env.BROWSER ?? "firefox";
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const dev = process.env.NODE_ENV === "development";
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const test = process.env.TEST === "true";
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const watch = process.env.WATCH === "true";
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// Create absolute paths to various directories.
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const buildDir = toAbsolutePath("../build");
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const outDir = path.join(buildDir, browser);
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const sourceDir = toAbsolutePath("../source");
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// Ensure that the output directory exists.
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await fsp.mkdir(outDir, {recursive: true});
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// Write the WebExtension manifest file.
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await fsp.writeFile(
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path.join(outDir, "manifest.json"),
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JSON.stringify(createManifest(browser)),
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);
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// Write the web-ext configuration file.
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await fsp.writeFile(
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path.join(buildDir, `web-ext-${browser}.json`),
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JSON.stringify(createWebExtConfig(browser, buildDir, dev, outDir)),
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);
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const cssProcessor = postcss([cssnano()]);
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const options: esbuild.BuildOptions = {
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bundle: true,
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// Define variables to be replaced in the code. Note that these are replaced
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// "as is" and so we have to stringify them as JSON, otherwise a string won't
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// have its quotes for example.
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define: {
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$browser: JSON.stringify(browser),
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$dev: JSON.stringify(dev),
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$test: JSON.stringify(test),
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},
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entryPoints: [
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path.join(sourceDir, "background/setup.ts"),
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path.join(sourceDir, "options/setup.tsx"),
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],
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format: "esm",
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logLevel: "info",
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minify: !dev,
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outdir: outDir,
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plugins: [
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// Copy all files from `source/assets/` to the output directory.
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copyPlugin({src: path.join(sourceDir, "assets/"), dest: outDir}),
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// Compile SCSS to CSS.
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sassPlugin({
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type: "style",
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async transform(source) {
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// In development, don't do any extra processing.
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if (dev) {
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return source;
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}
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// But in production, run the CSS through PostCSS.
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const {css} = await cssProcessor.process(source, {from: undefined});
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return css;
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},
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}),
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],
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// Link sourcemaps in development but omit them in production.
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sourcemap: dev ? "linked" : false,
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// Currently code splitting can't be used because we use ES modules and
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// Firefox doesn't run the background script with `type="module"`.
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// Once Firefox properly supports Manifest V3 this should be possible though.
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splitting: false,
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// Target ES2022, and the first Chromium and Firefox releases from 2022.
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target: ["es2022", "chrome97", "firefox102"],
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treeShaking: true,
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};
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if (watch) {
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const context = await esbuild.context(options);
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await context.watch();
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} else {
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await esbuild.build(options);
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}
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