@codemod-utils/json/dist/json/validate-package-json.js

Utilities for handling JSON

/**
 * (Type-)Checks that the fields `name` and `version` exist, in the
 * sense that their values are a non-empty string.
 *
 * @param packageJson
 *
 * A JSON that represents `package.json`.
 *
 * @example
 *
 * ```ts
 * const packageJson = readPackageJson({ projectRoot });
 *
 * validatePackageJson(packageJson);
 *
 * // Both guaranteed to be `string` (not `undefined`)
 * const { name, version } = packageJson;
 * ```
 */
export function validatePackageJson(packageJson) {
    const { name, version } = packageJson;
    if (!name) {
        throw new SyntaxError('ERROR: package.json is not valid. (Package name is missing.)\n');
    }
    if (name.includes('/')) {
        // eslint-disable-next-line @typescript-eslint/no-unused-vars
        const [_scope, packageName] = name.split('/');
        if (!packageName) {
            throw new SyntaxError('ERROR: package.json is not valid. (Package name is missing.)\n');
        }
    }
    if (!version) {
        throw new SyntaxError('ERROR: package.json is not valid. (Package version is missing.)\n');
    }
}