88 lines
2.7 KiB
JavaScript
88 lines
2.7 KiB
JavaScript
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'use strict';
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var Promise = require('bluebird');
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var get = require('lodash.get');
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var readPkgUp = require('read-pkg-up');
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var path = require('path');
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var debug = require('debug')('get-package-info');
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var getInfo = function getInfo(props, dir, result) {
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if (!Array.isArray(props)) return Promise.reject(new Error('First argument must be array of properties to retrieve.'));
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if (!props.length) return Promise.resolve(result);
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debug('Getting props: ', props);
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debug('Looking up starting from directory: ', dir);
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debug('Result so far:', result);
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return Promise.resolve(readPkgUp({ cwd: dir, normalize: false })).then(function (_ref) {
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var src = _ref.path;
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var pkg = _ref.pkg;
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if (!src) {
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debug('Couldn\'t find any more package.json files');
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var err = new Error('Unable to find all properties in parent package.json files. Missing props: ' + props.map(function (prop) {
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return JSON.stringify(prop);
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}).join(', '));
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err.missingProps = props;
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err.result = result;
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throw err;
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}
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debug('Checking props in package.json found at:', src);
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var nextProps = [];
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props.forEach(function (prop) {
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// For props given as array
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// Look for props in that order, and when found
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// save value under all given props
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if (Array.isArray(prop)) {
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(function () {
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var value = void 0,
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sourceProp = void 0;
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prop.some(function (p) {
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sourceProp = p;
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value = get(pkg, p);
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return value;
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});
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if (value !== undefined) {
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debug('Found prop:', prop);
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prop.forEach(function (p) {
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result.values[p] = value;
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result.source[p] = { src: src, pkg: pkg, prop: sourceProp };
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});
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} else {
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debug('Couldn\'t find prop:', prop);
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nextProps.push(prop);
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}
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})();
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} else {
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// For regular string props, just look normally
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var _value = get(pkg, prop);
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if (_value !== undefined) {
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debug('Found prop:', prop);
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result.values[prop] = _value;
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result.source[prop] = { src: src, pkg: pkg, prop: prop };
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} else {
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debug('Couldn\'t find prop:', prop);
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nextProps.push(prop);
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}
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}
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});
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// Still have props to look for, look at another package.json above this one
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if (nextProps.length) {
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debug('Not all props satisfied, looking for parent package.json');
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return getInfo(nextProps, path.join(path.dirname(src), '..'), result);
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}
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debug('Found all props!');
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return result;
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});
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};
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module.exports = function (props, dir, cb) {
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return getInfo(props, dir, { values: {}, source: {} }).nodeify(cb);
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};
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