wehub-resource-sync
48 lines
1.6 KiB
TypeScript
48 lines
1.6 KiB
TypeScript
import type { Tree } from 'nx/src/devkit-exports';
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import type { ModuleKind, ScriptTarget } from 'typescript';
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import { typescriptVersion } from '../utils/versions';
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import { ensurePackage } from '../utils/package-json';
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export type ToJSOptions = {
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extension?: '.js' | '.mjs' | '.cjs';
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module?: ModuleKind;
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target?: ScriptTarget;
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useJsx?: boolean;
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};
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/**
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* Rename and transpile any new typescript files created to javascript files
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*/
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export function toJS(tree: Tree, options?: ToJSOptions): void {
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const { JsxEmit, ScriptTarget, transpile, ModuleKind } = ensurePackage(
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'typescript',
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typescriptVersion
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) as typeof import('typescript');
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// Match `.ts`, `.mts`, `.cts`, `.tsx`. The optional `[cm]` keeps native
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// ESM (`.mts`) and CommonJS (`.cts`) TypeScript extensions in the rename
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// path so `--js` generators that emit `.mts`/`.cts` templates get
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// converted instead of silently left as TypeScript on disk.
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const tsExtRegex = /\.([cm]?ts|tsx)$/;
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for (const c of tree.listChanges()) {
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if (tsExtRegex.test(c.path) && c.type === 'CREATE') {
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tree.write(
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c.path,
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transpile(c.content.toString('utf-8'), {
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allowJs: true,
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jsx: JsxEmit.Preserve,
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target: options?.target ?? ScriptTarget.ESNext,
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module: options?.module ?? ModuleKind.ESNext,
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})
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);
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const targetExt = options?.extension ?? '.js';
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tree.rename(c.path, c.path.replace(/\.([cm]?ts)$/, targetExt));
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if (options?.useJsx) {
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tree.rename(c.path, c.path.replace(/\.tsx$/, '.jsx'));
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} else {
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tree.rename(c.path, c.path.replace(/\.tsx$/, targetExt));
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}
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}
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}
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}
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