tachybase_todo/packages/father-build/src/getBabelConfig.ts

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2021-05-23 08:38:08 +08:00
import { extname } from 'path';
import { ModuleFormat } from 'rollup';
interface IGetBabelConfigOpts {
target: 'browser' | 'node';
type?: ModuleFormat;
typescript?: boolean;
runtimeHelpers?: boolean;
filePath?: string;
browserFiles?: {
[value: string]: any;
};
nodeVersion?: number;
nodeFiles?: {
[value: string]: any;
};
lazy?: boolean;
lessInBabelMode?: boolean|{
paths?: any[];
plugins?: any[];
};
}
function transformImportLess2Css() {
return {
name: 'transform-import-less-to-css',
visitor: {
ImportDeclaration(path, source) {
const re = /\.less$/;
if(re.test(path.node.source.value)){
path.node.source.value = path.node.source.value.replace(re, '.css');
}
}
}
}
}
export default function(opts: IGetBabelConfigOpts) {
const { target, typescript, type, runtimeHelpers, filePath, browserFiles, nodeFiles, nodeVersion, lazy, lessInBabelMode } = opts;
let isBrowser = target === 'browser';
// rollup 场景下不会传入 filePath
if (filePath) {
if (extname(filePath) === '.tsx' || extname(filePath) === '.jsx') {
isBrowser = true;
} else {
if (isBrowser) {
if (nodeFiles.includes(filePath)) isBrowser = false;
} else {
if (browserFiles.includes(filePath)) isBrowser = true;
}
}
}
const targets = isBrowser ? { browsers: ['last 2 versions', 'IE 10'] } : { node: nodeVersion || 6 };
return {
opts: {
presets: [
...(typescript ? [require.resolve('@babel/preset-typescript')] : []),
[require.resolve('@babel/preset-env'), {
targets,
modules: type === 'esm' ? false : 'auto'
}],
...(isBrowser ? [require.resolve('@babel/preset-react')] : []),
],
plugins: [
...((type === 'cjs' && lazy && !isBrowser)
? [[require.resolve('@babel/plugin-transform-modules-commonjs'), {
lazy: true,
}]]
: []),
...(lessInBabelMode ? [transformImportLess2Css] : []),
require.resolve('babel-plugin-react-require'),
require.resolve('@babel/plugin-syntax-dynamic-import'),
require.resolve('@babel/plugin-proposal-export-default-from'),
require.resolve('@babel/plugin-proposal-export-namespace-from'),
require.resolve('@babel/plugin-proposal-do-expressions'),
require.resolve('@babel/plugin-proposal-nullish-coalescing-operator'),
require.resolve('@babel/plugin-proposal-optional-chaining'),
[require.resolve('@babel/plugin-proposal-decorators'), { legacy: true }],
[require.resolve('@babel/plugin-proposal-class-properties'), { loose: true }],
...(runtimeHelpers
? [[require.resolve('@babel/plugin-transform-runtime'), {
useESModules: isBrowser && (type === 'esm'),
version: require('@babel/runtime/package.json').version,
}]]
: []),
...(process.env.COVERAGE
? [require.resolve('babel-plugin-istanbul')]
: []
)
],
},
isBrowser,
};
}