challenge-algorithms-v2.0-s.../node_modules/jest-util/build/globsToMatcher.js

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2022-10-27 18:51:35 +00:00
'use strict';
Object.defineProperty(exports, '__esModule', {
value: true
});
exports.default = globsToMatcher;
function _picomatch() {
const data = _interopRequireDefault(require('picomatch'));
_picomatch = function () {
return data;
};
return data;
}
var _replacePathSepForGlob = _interopRequireDefault(
require('./replacePathSepForGlob')
);
function _interopRequireDefault(obj) {
return obj && obj.__esModule ? obj : {default: obj};
}
/**
* Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
const globsToMatchersMap = new Map();
const picomatchOptions = {
dot: true
};
/**
* Converts a list of globs into a function that matches a path against the
* globs.
*
* Every time picomatch is called, it will parse the glob strings and turn
* them into regexp instances. Instead of calling picomatch repeatedly with
* the same globs, we can use this function which will build the picomatch
* matchers ahead of time and then have an optimized path for determining
* whether an individual path matches.
*
* This function is intended to match the behavior of `micromatch()`.
*
* @example
* const isMatch = globsToMatcher(['*.js', '!*.test.js']);
* isMatch('pizza.js'); // true
* isMatch('pizza.test.js'); // false
*/
function globsToMatcher(globs) {
if (globs.length === 0) {
// Since there were no globs given, we can simply have a fast path here and
// return with a very simple function.
return () => false;
}
const matchers = globs.map(glob => {
if (!globsToMatchersMap.has(glob)) {
const isMatch = (0, _picomatch().default)(glob, picomatchOptions, true);
const matcher = {
isMatch,
// Matchers that are negated have different behavior than matchers that
// are not negated, so we need to store this information ahead of time.
negated: isMatch.state.negated || !!isMatch.state.negatedExtglob
};
globsToMatchersMap.set(glob, matcher);
}
return globsToMatchersMap.get(glob);
});
return path => {
const replacedPath = (0, _replacePathSepForGlob.default)(path);
let kept = undefined;
let negatives = 0;
for (let i = 0; i < matchers.length; i++) {
const {isMatch, negated} = matchers[i];
if (negated) {
negatives++;
}
const matched = isMatch(replacedPath);
if (!matched && negated) {
// The path was not matched, and the matcher is a negated matcher, so we
// want to omit the path. This means that the negative matcher is
// filtering the path out.
kept = false;
} else if (matched && !negated) {
// The path was matched, and the matcher is not a negated matcher, so we
// want to keep the path.
kept = true;
}
}
// If all of the globs were negative globs, then we want to include the path
// as long as it was not explicitly not kept. Otherwise only include
// the path if it was kept. This allows sets of globs that are all negated
// to allow some paths to be matched, while sets of globs that are mixed
// negated and non-negated to cause the negated matchers to only omit paths
// and not keep them.
return negatives === matchers.length ? kept !== false : !!kept;
};
}