36 lines
4.8 KiB
JavaScript
36 lines
4.8 KiB
JavaScript
"use strict";
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var __importDefault = (this && this.__importDefault) || function (mod) {
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return (mod && mod.__esModule) ? mod : { "default": mod };
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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const path_1 = __importDefault(require("path"));
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function getCommonPathFragmentsCount(fragmentedPath1, fragmentedPath2) {
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const maxCommonPathFragmentsCount = Math.min(fragmentedPath1.length, fragmentedPath2.length);
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let commonPathFragmentsIndex = 0;
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while (commonPathFragmentsIndex < maxCommonPathFragmentsCount) {
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if (fragmentedPath1[commonPathFragmentsIndex] !== fragmentedPath2[commonPathFragmentsIndex])
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break;
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commonPathFragmentsIndex++;
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}
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return commonPathFragmentsIndex;
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}
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function getCommonPathFragments(fragmentedPaths) {
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const lastFragmentedPath = fragmentedPaths.pop();
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const commonPathFragmentsCounts = fragmentedPaths
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.map(fragmentedPath => getCommonPathFragmentsCount(fragmentedPath, lastFragmentedPath));
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return lastFragmentedPath.splice(0, Math.min(...commonPathFragmentsCounts));
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}
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function default_1(paths) {
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if (!paths)
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return null;
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if (paths.length === 1)
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return paths[0];
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const fragmentedPaths = paths.map(item => item.split(path_1.default.sep));
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const commonPathFragments = getCommonPathFragments(fragmentedPaths);
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if (!commonPathFragments.length)
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return null;
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return commonPathFragments.join(path_1.default.sep);
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}
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exports.default = default_1;
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module.exports = exports.default;
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