flecks/packages/server/build/runtime.js

112 lines
3.8 KiB
JavaScript

const {join} = require('path');
const {version} = require('../package.json');
async function runtimeModule(compilation, flecks) {
const {compiler} = compilation;
// Inject flecks configuration.
const paths = Object.keys(flecks.flecks);
const resolvedPaths = (await Promise.all(
paths.map(async (path) => [path, await flecks.resolver.resolve(path)]),
))
.filter(([, resolved]) => resolved)
.map(([path]) => path);
const ymlPath = join(flecks.root, 'build', 'flecks.yml');
const runtime = {
/* eslint-disable indent */
bootstrappedConfig: JSON.stringify(flecks.invoke('@flecks/core.config')),
config: (`
Flecks.environmentConfiguration(
${JSON.stringify(paths)},
Flecks.dealiasedConfig(${
'production' === compiler.options.mode
? JSON.stringify(flecks.originalConfig)
: `require('${ymlPath}').default`
}),
)
`),
/* eslint-enable indent */
loadFlecks: [
'async () => (',
' Object.fromEntries(',
' (await Promise.all(',
' [',
...resolvedPaths.map((path) => [
' (async () => {',
' try {',
` const M = await import('${path}');`,
' if (module.hot) {',
// Hooks for each fleck.
` module.hot.accept('${path}', async () => {`,
` const M = require('${path}')`,
' try {',
` global.flecks.refresh('${path}', M);`,
' }',
' catch (error) {',
// eslint-disable-next-line no-template-curly-in-string
' console.error(`HMR failed for fleck: ${error.message}`);',
' module.hot.invalidate();',
' }',
' });',
' }',
` return ['${path}', M];`,
' }',
' catch (error) {',
` if (!error.message.startsWith("Cannot find module '${path}'")) {`,
' throw error;',
' }',
' }',
' })(),',
]).flat(),
' ],',
' ))',
' .filter((entry) => entry),',
' )',
')',
].join('\n'),
version: JSON.stringify(version),
...await flecks.invokeAsync('@flecks/server.runtime'),
};
const renderedRuntime = `{${
Object.entries(runtime)
.map(([key, value]) => `"${key}": ${value}`).join(', ')
}}`;
const source = [
"const {Flecks} = require('@flecks/core');",
"process.env.FLECKS_CORE_BUILD_TARGET = 'server';",
`module.exports = (async () => (${renderedRuntime}))();`,
// HMR.
'if (module.hot) {',
` module.hot.accept('${ymlPath}', () => {`,
` const M = require('${ymlPath}').default;`,
' try {',
` global.flecks.invokeSequential('@flecks/core.hmr', '${ymlPath}', M);`,
' }',
' catch (error) {',
// eslint-disable-next-line no-template-curly-in-string
' console.error(`flecks.reload() failed: ${error.message}`);',
' module.hot.invalidate();',
' }',
' });',
// Keep HMR junk out of our output path.
' const {glob} = require("glob");',
' const {join} = require("path");',
' const {unlink} = require("fs/promises");',
' let previousHash = __webpack_hash__;',
' module.hot.addStatusHandler(async (status) => {',
' if ("idle" === status) {',
' const disposing = await glob(',
` join('${compiler.options.output.path}', \`*\${previousHash}.hot-update.*\`),`,
' );',
' await Promise.all(disposing.map((filename) => unlink(filename)));',
' previousHash = __webpack_hash__;',
' }',
' });',
'}',
];
// Create asset.
return source.join('\n');
}
exports.runtimeModule = runtimeModule;