summaryrefslogtreecommitdiff
path: root/src/build/bundle.ts
diff options
context:
space:
mode:
Diffstat (limited to 'src/build/bundle.ts')
-rw-r--r--src/build/bundle.ts313
1 files changed, 0 insertions, 313 deletions
diff --git a/src/build/bundle.ts b/src/build/bundle.ts
deleted file mode 100644
index d590e85df..000000000
--- a/src/build/bundle.ts
+++ /dev/null
@@ -1,313 +0,0 @@
-import type { AstroConfig, RuntimeMode, ValidExtensionPlugins } from '../@types/astro';
-import type { ImportDeclaration } from '@babel/types';
-import type { InputOptions, OutputOptions } from 'rollup';
-import type { AstroRuntime } from '../runtime';
-import type { LogOptions } from '../logger';
-
-import esbuild from 'esbuild';
-import { promises as fsPromises } from 'fs';
-import { fileURLToPath } from 'url';
-import { parse } from '../parser/index.js';
-import { transform } from '../compiler/transform/index.js';
-import { convertMdToAstroSource } from '../compiler/index.js';
-import { getAttrValue } from '../ast.js';
-import { walk } from 'estree-walker';
-import babelParser from '@babel/parser';
-import path from 'path';
-import { rollup } from 'rollup';
-import { terser } from 'rollup-plugin-terser';
-
-const { transformSync } = esbuild;
-const { readFile } = fsPromises;
-
-type DynamicImportMap = Map<'vue' | 'react' | 'react-dom' | 'preact' | 'svelte', string>;
-
-/** Add framework runtimes when needed */
-async function acquireDynamicComponentImports(plugins: Set<ValidExtensionPlugins>, resolvePackageUrl: (s: string) => Promise<string>): Promise<DynamicImportMap> {
- const importMap: DynamicImportMap = new Map();
- for (let plugin of plugins) {
- switch (plugin) {
- case 'svelte': {
- importMap.set('svelte', await resolvePackageUrl('svelte'));
- break;
- }
- case 'vue': {
- importMap.set('vue', await resolvePackageUrl('vue'));
- break;
- }
- case 'react': {
- importMap.set('react', await resolvePackageUrl('react'));
- importMap.set('react-dom', await resolvePackageUrl('react-dom'));
- break;
- }
- case 'preact': {
- importMap.set('preact', await resolvePackageUrl('preact'));
- break;
- }
- }
- }
- return importMap;
-}
-
-/** Evaluate mustache expression (safely) */
-function compileExpressionSafe(raw: string): string {
- let { code } = transformSync(raw, {
- loader: 'tsx',
- jsxFactory: 'h',
- jsxFragment: 'Fragment',
- charset: 'utf8',
- });
- return code;
-}
-
-const defaultExtensions: Readonly<Record<string, ValidExtensionPlugins>> = {
- '.jsx': 'react',
- '.tsx': 'react',
- '.svelte': 'svelte',
- '.vue': 'vue',
-};
-
-interface CollectDynamic {
- astroConfig: AstroConfig;
- resolvePackageUrl: (s: string) => Promise<string>;
- logging: LogOptions;
- mode: RuntimeMode;
-}
-
-/** Gather necessary framework runtimes for dynamic components */
-export async function collectDynamicImports(filename: URL, { astroConfig, logging, resolvePackageUrl, mode }: CollectDynamic) {
- const imports = new Set<string>();
-
- // Only astro files
- if (!filename.pathname.endsWith('.astro') && !filename.pathname.endsWith('.md')) {
- return imports;
- }
-
- const extensions = astroConfig.extensions || defaultExtensions;
-
- let source = await readFile(filename, 'utf-8');
- if (filename.pathname.endsWith('.md')) {
- source = await convertMdToAstroSource(source);
- }
-
- const ast = parse(source, {
- filename,
- });
-
- if (!ast.module) {
- return imports;
- }
-
- await transform(ast, {
- filename: fileURLToPath(filename),
- fileID: '',
- compileOptions: {
- astroConfig,
- resolvePackageUrl,
- logging,
- mode,
- },
- });
-
- const componentImports: ImportDeclaration[] = [];
- const components: Record<string, { plugin: ValidExtensionPlugins; type: string; specifier: string }> = {};
- const plugins = new Set<ValidExtensionPlugins>();
-
- const program = babelParser.parse(ast.module.content, {
- sourceType: 'module',
- plugins: ['jsx', 'typescript', 'topLevelAwait'],
- }).program;
-
- const { body } = program;
- let i = body.length;
- while (--i >= 0) {
- const node = body[i];
- if (node.type === 'ImportDeclaration') {
- componentImports.push(node);
- }
- }
-
- for (const componentImport of componentImports) {
- const importUrl = componentImport.source.value;
- const componentType = path.posix.extname(importUrl);
- const componentName = path.posix.basename(importUrl, componentType);
- const plugin = extensions[componentType] || defaultExtensions[componentType];
- plugins.add(plugin);
- components[componentName] = {
- plugin,
- type: componentType,
- specifier: importUrl,
- };
- }
-
- const dynamic = await acquireDynamicComponentImports(plugins, resolvePackageUrl);
-
- /** Add dynamic component runtimes to imports */
- function appendImports(rawName: string, importUrl: URL) {
- const [componentName, componentType] = rawName.split(':');
- if (!componentType) {
- return;
- }
-
- if (!components[componentName]) {
- throw new Error(`Unknown Component: ${componentName}`);
- }
-
- const defn = components[componentName];
- const fileUrl = new URL(defn.specifier, importUrl);
- let rel = path.posix.relative(astroConfig.astroRoot.pathname, fileUrl.pathname);
-
- switch (defn.plugin) {
- case 'preact': {
- // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
- imports.add(dynamic.get('preact')!);
- rel = rel.replace(/\.[^.]+$/, '.js');
- break;
- }
- case 'react': {
- // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
- imports.add(dynamic.get('react')!);
- // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
- imports.add(dynamic.get('react-dom')!);
- rel = rel.replace(/\.[^.]+$/, '.js');
- break;
- }
- case 'vue': {
- // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
- imports.add(dynamic.get('vue')!);
- rel = rel.replace(/\.[^.]+$/, '.vue.js');
- break;
- }
- case 'svelte': {
- // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
- imports.add(dynamic.get('svelte')!);
- // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
- imports.add('/_astro_internal/runtime/svelte.js');
- rel = rel.replace(/\.[^.]+$/, '.svelte.js');
- break;
- }
- }
-
- imports.add(`/_astro/${rel}`);
- }
-
- walk(ast.html, {
- enter(node) {
- switch (node.type) {
- case 'Element': {
- if (node.name !== 'script') return;
- if (getAttrValue(node.attributes, 'type') !== 'module') return;
-
- const src = getAttrValue(node.attributes, 'src');
-
- if (src && src.startsWith('/')) {
- imports.add(src);
- }
- break;
- }
-
- case 'MustacheTag': {
- let code: string;
- try {
- code = compileExpressionSafe(node.content);
- } catch {
- return;
- }
-
- let matches: RegExpExecArray[] = [];
- let match: RegExpExecArray | null | undefined;
- const H_COMPONENT_SCANNER = /h\(['"]?([A-Z].*?)['"]?,/gs;
- const regex = new RegExp(H_COMPONENT_SCANNER);
- while ((match = regex.exec(code))) {
- matches.push(match);
- }
- for (const foundImport of matches.reverse()) {
- const name = foundImport[1];
- appendImports(name, filename);
- }
- break;
- }
- case 'InlineComponent': {
- if (/^[A-Z]/.test(node.name)) {
- appendImports(node.name, filename);
- return;
- }
-
- break;
- }
- }
- },
- });
-
- return imports;
-}
-
-interface BundleOptions {
- runtime: AstroRuntime;
- dist: URL;
- astroConfig: AstroConfig;
-}
-
-/** The primary bundling/optimization action */
-export async function bundle(imports: Set<string>, { runtime, dist }: BundleOptions) {
- const ROOT = 'astro:root';
- const root = `
- ${[...imports].map((url) => `import '${url}';`).join('\n')}
- `;
-
- const inputOptions: InputOptions = {
- input: [...imports],
- plugins: [
- {
- name: 'astro:build',
- resolveId(source: string, imported?: string) {
- if (source === ROOT) {
- return source;
- }
- if (source.startsWith('/')) {
- return source;
- }
-
- if (imported) {
- const outUrl = new URL(source, 'http://example.com' + imported);
- return outUrl.pathname;
- }
-
- return null;
- },
- async load(id: string) {
- if (id === ROOT) {
- return root;
- }
-
- const result = await runtime.load(id);
-
- if (result.statusCode !== 200) {
- return null;
- }
-
- return result.contents.toString('utf-8');
- },
- },
- ],
- };
-
- const build = await rollup(inputOptions);
-
- const outputOptions: OutputOptions = {
- dir: fileURLToPath(dist),
- format: 'esm',
- exports: 'named',
- entryFileNames(chunk) {
- // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
- return chunk.facadeModuleId!.substr(1);
- },
- plugins: [
- // We are using terser for the demo, but might switch to something else long term
- // Look into that rather than adding options here.
- terser(),
- ],
- };
-
- await build.write(outputOptions);
-}
generated by cgit v1.2.3 (git 2.46.0) at 2025-08-12 20:27:56 +0000