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vite.config.js
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vite.config.js
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import { resolve, join } from 'path'
import { defineConfig } from 'vite'
import unsafeVars from './transform/unsafeVariables';
import assertRemove from './transform/assertRemove';
import staticMount from './transform/staticMount';
import compileHTMLLiteral from './transform/htmlLiteral';
import fs from 'fs';
const createTransform = (name, transform, jsx, options) => ({
name,
transform(code, id) {
if (id.endsWith('.js') || (jsx && id.endsWith('.jsx'))) {
const transformed = transform(code, {
sourceFileName: id,
plugins: id.endsWith('.jsx') ? ['jsx'] : [],
...options,
});
return {
code: transformed.code,
map: transformed.decodedMap,
};
}
}
});
const libs = {
destamd: {
entry: resolve(__dirname, 'index.js'),
fileName: 'destam-dom',
},
};
const lib = process.env.LIB;
let config;
if (lib in libs) {
config = defineConfig({
define: {
'process.env.NODE_ENV': '"development"',
},
plugins: !process.env.N_DEBUG ? [] : [
createTransform('assert-remove', assertRemove),
{
name: 'unsafe-vars',
renderChunk: (code, chunk, options) => {
const transformed = unsafeVars(code, {
sourceFileName: chunk.fileName,
});
return {
code: transformed.code,
map: transformed.decodedMap,
};
},
},
],
build: {
minify: 'terser',
target: 'es2020',
terserOptions: {
compress: {
unsafe_math: true,
unsafe_comps: true,
unsafe_symbols: true,
ecma: 2020,
passes: 2,
},
mangle: {
properties: {
regex: /_$/,
}
}
},
lib: {
...libs[lib],
name: lib,
formats: process.env.FORMATS?.split(',') || ['es', 'iife', 'umd'],
},
sourcemap: true,
},
});
} else {
const getExample = (file) => {
if (file === '/') file = '/index.html';
if (!file.startsWith('/') || !file.endsWith('.html')) return null;
file = file.substring(1);
let i = file.lastIndexOf('.');
const name = file.substring(0, i);
const existed = ['.js', '.jsx'].find(ex => fs.existsSync('examples/' + name + ex));
if (!existed) {
return null;
}
const relative = '/' + name + '.html';
return {
name,
file: name + existed,
relative,
location: resolve(__dirname, '/examples/' + name + existed),
resolved: join(__dirname, relative),
};
};
let examples;
const getExamples = () => {
if (examples) {
return examples;
}
return examples = fs.readdirSync(resolve(__dirname, 'examples')).map(file => {
let i = file.lastIndexOf('.');
const name = file.substring(0, i);
return getExample('/' + name + '.html');
});
};
const generateTemplate = (entry, hot) => {
return `
<!doctype html>
<html lang="en">
${hot ? '<script type="module" src="/@vite/client"></script>' : ""}
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Destam-Dom</title>
</head>
<body>
<script type="module">
import { mount } from './index';
import example from './examples/${entry.file}';
mount(document.body, example);
</script>
</body>
</html>
`;
};
config = defineConfig({
optimizeDeps: {
entries: [],
},
plugins: [
...(process.env.N_DEBUG ? [createTransform('assert-remove', assertRemove)] : []),
createTransform('transform-literal-html', compileHTMLLiteral, true, {
jsx_auto_import: {h: 'destam-dom'},
}),
{
name: 'examples',
resolveId (id) {
let found = getExamples().find(ex => ex.resolved === id);
if (found) {
return found.resolved;
}
},
load(id) {
let found = getExamples().find(ex => ex.resolved === id);
if (found) return generateTemplate(found);
},
configureServer(server) {
server.middlewares.use((req, res, next) => {
let found = getExample(req.originalUrl);
if (found) {
res.end(generateTemplate(found, true));
} else {
next();
}
});
},
},
...(process.env.STATIC_ANALYZE ? [createTransform('static-mount', staticMount, true, {
util_import: 'destam-dom'
})] : []),
],
esbuild: {
jsx: 'preserve',
},
build: {
rollupOptions: {
input: Object.fromEntries(getExamples().map(ex => [ex.name, ex.resolved])),
},
},
resolve: {
alias: [
{find: /^destam-dom($|\/)/, replacement: '/'},
]
}
});
}
export default config;