45 lines
1.2 KiB
JavaScript
45 lines
1.2 KiB
JavaScript
// copied from https://github.com/nodejs/node/blob/v15.3.0/lib/internal/modules/package_json_reader.js
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'use strict';
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const { SafeMap } = require('./node-primordials');
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const { internalModuleReadJSON } = require('./node-internal-fs');
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const { pathToFileURL } = require('url');
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const { toNamespacedPath } = require('path');
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const cache = new SafeMap();
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let manifest;
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/**
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* @param {string} jsonPath
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* @return {[string, boolean]}
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*/
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function read(jsonPath) {
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if (cache.has(jsonPath)) {
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return cache.get(jsonPath);
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}
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const [string, containsKeys] = internalModuleReadJSON(
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toNamespacedPath(jsonPath)
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);
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const result = { string, containsKeys };
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const { getOptionValue } = require('./node-options');
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if (string !== undefined) {
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if (manifest === undefined) {
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// manifest = getOptionValue('--experimental-policy') ?
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// require('internal/process/policy').manifest :
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// null;
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// disabled for now. I am not sure if/how we should support this
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manifest = null;
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}
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if (manifest !== null) {
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const jsonURL = pathToFileURL(jsonPath);
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manifest.assertIntegrity(jsonURL, string);
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}
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}
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cache.set(jsonPath, result);
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return result;
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}
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module.exports = { read };
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