}

/**

* Parses the output of `yarn info` (classic).

* Parses the output of `yarn info` (classic) to get a package manifest.

* @param stdout The standard output of the command.

* @param logger An optional logger instance.

* @returns The package manifest object.

*/

export function parseYarnLegacyManifest(stdout: string, logger?: Logger): PackageManifest | null {

export function parseYarnClassicManifest(stdout: string, logger?: Logger): PackageManifest | null {

logger?.debug(`Parsing yarn classic manifest...`);

logStdout(stdout, logger);

const data = JSON.parse(stdout);

// Yarn classic wraps the manifest in a `data` property.

return data.data ?? data;

const manifest = data.data as PackageManifest;

// Yarn classic removes any field with a falsy value

// https://github.com/yarnpkg/yarn/blob/7cafa512a777048ce0b666080a24e80aae3d66a9/src/cli/commands/info.js#L26-L29

// Add a default of 'false' for the `save` field when the `ng-add` object is present but does not have any fields.

// There is a small chance this causes an incorrect value. However, the use of `ng-add` is rare and, in the cases

// it is used, save is set to either a `false` literal or a truthy value. Special cases can be added for specific

// packages if discovered.

if (

manifest['ng-add'] &&

typeof manifest['ng-add'] === 'object' &&

Object.keys(manifest['ng-add']).length === 0

) {

manifest['ng-add'].save ??= false;

}

return manifest;

}

/**

* Parses the output of `yarn info` (classic) to get package metadata.

* @param stdout The standard output of the command.

* @param logger An optional logger instance.

* @returns The package metadata object.

*/

export function parseYarnClassicMetadata(stdout: string, logger?: Logger): PackageMetadata | null {

logger?.debug(`Parsing yarn classic metadata...`);

logStdout(stdout, logger);

if (!stdout) {

logger?.debug(' stdout is empty. No metadata found.');

return null;

}

const data = JSON.parse(stdout);

// Yarn classic wraps the metadata in a `data` property.

return data.data;

}