53 lines
1.9 KiB
JavaScript
53 lines
1.9 KiB
JavaScript
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'use strict';
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var isCategory = require('node-exports-info/isCategory');
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var getCategoriesForRange = require('node-exports-info/getCategoriesForRange');
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var $TypeError = require('es-errors/type');
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var selectMostRestrictive = require('./select-most-restrictive');
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// Determine the active exports category from resolve options
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// Returns null if no exports resolution should be applied
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// Returns 'engines' if engines: true (needs consumer package.json lookup)
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// Throws TypeError if invalid options are provided
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/** @type {(opts?: { exportsCategory?: import('node-exports-info/getCategory').Category, engines?: boolean | string }) => null | import('node-exports-info/getCategory').Category} */
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module.exports = function getExportsCategory(opts) {
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if (!opts) {
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return null;
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}
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var hasCategory = typeof opts.exportsCategory !== 'undefined';
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var engines = opts.engines;
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var hasEngines = typeof engines !== 'undefined' && engines !== false;
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if (hasCategory && hasEngines) {
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throw new $TypeError('`exportsCategory` and `engines` are mutually exclusive.');
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}
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if (hasCategory) {
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if (!isCategory(opts.exportsCategory)) {
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var catError = new $TypeError('Invalid exports category: "' + opts.exportsCategory + '"');
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catError.code = 'INVALID_EXPORTS_CATEGORY';
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throw catError;
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}
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return opts.exportsCategory;
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}
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if (hasEngines) {
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// engines: true means read from consumer's package.json
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if (engines === true) {
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return 'engines';
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}
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// engines must be a non-empty string (semver range)
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if (typeof engines !== 'string' || engines === '') {
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throw new $TypeError('`engines` must be `true`, `false`, or a non-empty string semver range.');
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}
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var categories = getCategoriesForRange(engines);
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return selectMostRestrictive(categories);
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}
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return null;
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};
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