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build.js
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build.js
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import fs from 'fs'
import esbuild from 'esbuild'
import * as terser from 'terser'
fs.mkdirSync('dist')
fs.copyFileSync('src/esmodule-entry.js', 'dist/index.js')
const source = fs.readFileSync('./src/kaiku.ts').toString()
console.log('Build development version')
console.time(' - time')
fs.writeFileSync(
'dist/kaiku.dev.js',
esbuild.transformSync(source, {
loader: 'ts',
define: {
__DEBUG__: true,
ClassComponentTag: '"ClassComponent"',
FunctionComponentTag: '"FunctionComponent"',
HtmlElementTag: '"HtmlElement"',
FragmentTag: '"Fragment"',
TextNodeTag: '"TextNode"',
EffectTag: '"EffectTag"',
LazyPropUpdateTag: '"LazyPropUpdateTag"',
LazyStyleUpdateTag: '"LazyStyleUpdateTag"',
},
}).code
)
console.timeEnd(' - time')
console.log('Build production version')
console.time(' - time')
let tagId = 0
fs.writeFileSync(
'dist/kaiku.js',
esbuild.transformSync(source, {
loader: 'ts',
define: {
__DEBUG__: false,
ClassComponentTag: tagId++,
FunctionComponentTag: tagId++,
HtmlElementTag: tagId++,
FragmentTag: tagId++,
TextNodeTag: tagId++,
EffectTag: tagId++,
LazyPropUpdateTag: tagId++,
LazyStyleUpdateTag: tagId++,
},
}).code
)
console.timeEnd(' - time')
console.log('Minify production version')
console.time(' - time')
terser
.minify(fs.readFileSync('dist/kaiku.js').toString(), {
sourceMap: true,
compress: {
passes: 3,
inline: false,
unsafe: true,
booleans_as_integers: true,
module: true,
// This drops the `assert` calls in minified builds
pure_funcs: ['assert'],
},
mangle: {
module: true,
properties: {
reserved: [
'h',
'jsx',
'render',
'createState',
'useEffect',
'useState',
'useRef',
'immutable',
'ref',
'current',
'Component',
'componentDidMount',
'componentWillUnmount',
'Fragment',
'state',
'props',
],
},
},
})
.then((minified) => {
minified.code += '\n//# sourceMappingURL=kaiku.min.js.map'
fs.writeFileSync('dist/kaiku.min.js', minified.code)
fs.writeFileSync('dist/kaiku.min.js.map', minified.map)
})
console.timeEnd(' - time')