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- "use strict";
- Object.defineProperty(exports, "__esModule", { value: true });
- exports.getAbsoluteMappingEntries = void 0;
- var path = require("path");
- /**
- * Converts an absolute baseUrl and paths to an array of absolute mapping entries.
- * The array is sorted by longest prefix.
- * Having an array with entries allows us to keep a sorting order rather than
- * sort by keys each time we use the mappings.
- * @param absoluteBaseUrl
- * @param paths
- * @param addMatchAll
- */
- function getAbsoluteMappingEntries(absoluteBaseUrl, paths, addMatchAll) {
- // Resolve all paths to absolute form once here, and sort them by
- // longest prefix once here, this saves time on each request later.
- // We need to put them in an array to preserve the sorting order.
- var sortedKeys = sortByLongestPrefix(Object.keys(paths));
- var absolutePaths = [];
- for (var _i = 0, sortedKeys_1 = sortedKeys; _i < sortedKeys_1.length; _i++) {
- var key = sortedKeys_1[_i];
- absolutePaths.push({
- pattern: key,
- paths: paths[key].map(function (pathToResolve) {
- return path.join(absoluteBaseUrl, pathToResolve);
- }),
- });
- }
- // If there is no match-all path specified in the paths section of tsconfig, then try to match
- // all paths relative to baseUrl, this is how typescript works.
- if (!paths["*"] && addMatchAll) {
- absolutePaths.push({
- pattern: "*",
- paths: ["".concat(absoluteBaseUrl.replace(/\/$/, ""), "/*")],
- });
- }
- return absolutePaths;
- }
- exports.getAbsoluteMappingEntries = getAbsoluteMappingEntries;
- /**
- * Sort path patterns.
- * If a module name can be matched with multiple patterns then pattern with the longest prefix will be picked.
- */
- function sortByLongestPrefix(arr) {
- return arr
- .concat()
- .sort(function (a, b) { return getPrefixLength(b) - getPrefixLength(a); });
- }
- function getPrefixLength(pattern) {
- var prefixLength = pattern.indexOf("*");
- return pattern.substr(0, prefixLength).length;
- }
- //# sourceMappingURL=mapping-entry.js.map
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