76 lines
1.6 KiB
JavaScript
76 lines
1.6 KiB
JavaScript
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'use strict';
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var isGlob = require('is-glob');
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var pathPosixDirname = require('path').posix.dirname;
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var isWin32 = require('os').platform() === 'win32';
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var slash = '/';
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var backslash = /\\/g;
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var escaped = /\\([!*?|[\](){}])/g;
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/**
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* @param {string} str
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* @param {Object} opts
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* @param {boolean} [opts.flipBackslashes=true]
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*/
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module.exports = function globParent(str, opts) {
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var options = Object.assign({ flipBackslashes: true }, opts);
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// flip windows path separators
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if (options.flipBackslashes && isWin32 && str.indexOf(slash) < 0) {
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str = str.replace(backslash, slash);
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}
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// special case for strings ending in enclosure containing path separator
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if (isEnclosure(str)) {
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str += slash;
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}
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// preserves full path in case of trailing path separator
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str += 'a';
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// remove path parts that are globby
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do {
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str = pathPosixDirname(str);
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} while (isGlobby(str));
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// remove escape chars and return result
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return str.replace(escaped, '$1');
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};
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function isEnclosure(str) {
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var lastChar = str.slice(-1);
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var enclosureStart;
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switch (lastChar) {
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case '}':
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enclosureStart = '{';
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break;
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case ']':
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enclosureStart = '[';
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break;
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default:
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return false;
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}
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var foundIndex = str.indexOf(enclosureStart);
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if (foundIndex < 0) {
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return false;
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}
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return str.slice(foundIndex + 1, -1).includes(slash);
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}
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function isGlobby(str) {
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if (/\([^()]+$/.test(str)) {
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return true;
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}
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if (str[0] === '{' || str[0] === '[') {
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return true;
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}
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if (/[^\\][{[]/.test(str)) {
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return true;
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}
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return isGlob(str);
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}
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