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utils.ts
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/
utils.ts
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import upath from 'upath';
import { logger } from '../../../../logger';
import { readLocalFile } from '../../../../util/fs';
import { Lazy } from '../../../../util/lazy';
import { PackageJson, PackageJsonSchema } from '../schema';
export function lazyLoadPackageJson(
lockFileDir: string,
): Lazy<Promise<PackageJsonSchema>> {
return new Lazy(() => loadPackageJson(lockFileDir));
}
export type LazyPackageJson = ReturnType<typeof lazyLoadPackageJson>;
export async function loadPackageJson(
lockFileDir: string,
): Promise<PackageJsonSchema> {
const json = await readLocalFile(
upath.join(lockFileDir, 'package.json'),
'utf8',
);
const res = PackageJson.safeParse(json);
if (res.success) {
return res.data;
}
return {};
}
export function getPackageManagerVersion(
name: string,
pkg: PackageJsonSchema,
): string | null {
if (pkg.packageManager?.name === name) {
const version = pkg.packageManager.version;
logger.debug(
`Found ${name} constraint in package.json packageManager: ${version}`,
);
return version;
}
if (pkg.engines?.[name]) {
const version = pkg.engines[name];
logger.debug(
`Found ${name} constraint in package.json engines: ${version}`,
);
return version;
}
return null;
}