35 lines
1.2 KiB
JavaScript
35 lines
1.2 KiB
JavaScript
/**
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* ts-node/esmローダーに投げる前にpath mappingを解決する
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* 参考
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* - https://github.com/TypeStrong/ts-node/discussions/1450#discussioncomment-1806115
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* - https://nodejs.org/api/esm.html#loaders
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* ※ https://github.com/TypeStrong/ts-node/pull/1585 が取り込まれたらこのカスタムローダーは必要なくなる
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*/
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import { resolve as resolveTs, load } from 'ts-node/esm';
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import { loadConfig, createMatchPath } from 'tsconfig-paths';
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import { pathToFileURL } from 'url';
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const tsconfig = loadConfig();
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const matchPath = createMatchPath(tsconfig.absoluteBaseUrl, tsconfig.paths);
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export function resolve(specifier, ctx, defaultResolve) {
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let resolvedSpecifier;
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if (specifier.endsWith('.js')) {
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// maybe transpiled
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const specifierWithoutExtension = specifier.substring(0, specifier.length - '.js'.length);
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const matchedSpecifier = matchPath(specifierWithoutExtension);
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if (matchedSpecifier) {
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resolvedSpecifier = pathToFileURL(`${matchedSpecifier}.js`).href;
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}
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} else {
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const matchedSpecifier = matchPath(specifier);
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if (matchedSpecifier) {
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resolvedSpecifier = pathToFileURL(matchedSpecifier).href;
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}
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}
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return resolveTs(resolvedSpecifier ?? specifier, ctx, defaultResolve);
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}
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export { load };
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