testcafe/lib/utils/get-common-path.js

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