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import type { AstroAdapter, AstroConfig, AstroIntegration, BuildConfig } from 'astro';
import esbuild from 'esbuild';
import * as fs from 'fs';
import { fileURLToPath } from 'url';
type Options = {
mode: 'directory' | 'advanced';
};
export function getAdapter(isModeDirectory: boolean): AstroAdapter {
return isModeDirectory
? {
name: '@astrojs/cloudflare',
serverEntrypoint: '@astrojs/cloudflare/server.directory.js',
exports: ['onRequest'],
}
: {
name: '@astrojs/cloudflare',
serverEntrypoint: '@astrojs/cloudflare/server.advanced.js',
exports: ['default'],
};
}
const SHIM = `globalThis.process = {
argv: [],
env: {},
};`;
export default function createIntegration(args?: Options): AstroIntegration {
let _config: AstroConfig;
let _buildConfig: BuildConfig;
const isModeDirectory = args?.mode === 'directory';
return {
name: '@astrojs/cloudflare',
hooks: {
'astro:config:done': ({ setAdapter, config }) => {
setAdapter(getAdapter(isModeDirectory));
_config = config;
if (config.output === 'static') {
throw new Error(`
[@astrojs/cloudflare] \`output: "server"\` is required to use this adapter. Otherwise, this adapter is not necessary to deploy a static site to Cloudflare.
`);
}
},
'astro:build:start': ({ buildConfig }) => {
_buildConfig = buildConfig;
buildConfig.client = new URL('./static/', _config.outDir);
buildConfig.serverEntry = '_worker.js';
buildConfig.server = new URL('./', _config.outDir);
},
'astro:build:setup': ({ vite, target }) => {
if (target === 'server') {
vite.resolve = vite.resolve || {};
vite.resolve.alias = vite.resolve.alias || {};
const aliases = [{ find: 'react-dom/server', replacement: 'react-dom/server.browser' }];
if (Array.isArray(vite.resolve.alias)) {
vite.resolve.alias = [...vite.resolve.alias, ...aliases];
} else {
for (const alias of aliases) {
(vite.resolve.alias as Record<string, string>)[alias.find] = alias.replacement;
}
}
vite.ssr = {
target: 'webworker',
noExternal: true,
};
}
},
'astro:build:done': async () => {
const entryUrl = new URL(_buildConfig.serverEntry, _buildConfig.server);
const pkg = fileURLToPath(entryUrl);
await esbuild.build({
target: 'es2020',
platform: 'browser',
entryPoints: [pkg],
outfile: pkg,
allowOverwrite: true,
format: 'esm',
bundle: true,
minify: true,
banner: {
js: SHIM,
},
});
// throw the server folder in the bin
const chunksUrl = new URL('./chunks', _buildConfig.server);
await fs.promises.rm(chunksUrl, { recursive: true, force: true });
if (isModeDirectory) {
const functionsUrl = new URL(`file://${process.cwd()}/functions/`);
await fs.promises.mkdir(functionsUrl, { recursive: true });
const directoryUrl = new URL('[[path]].js', functionsUrl);
await fs.promises.rename(entryUrl, directoryUrl);
}
},
},
};
}
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