46 lines
1.0 KiB
JavaScript
46 lines
1.0 KiB
JavaScript
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'use strict';
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var path = require('path')
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, fs = require('fs')
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, exists = fs.exists || path.exists
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, existsSync = fs.existsSync || path.existsSync
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;
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function splitPath(path) {
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var parts = path.split(/(\/|\\)/);
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if (!parts.length) return parts;
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// when path starts with a slash, the first part is empty string
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return !parts[0].length ? parts.slice(1) : parts;
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}
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exports = module.exports = function (currentFullPath, clue, cb) {
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function testDir(parts) {
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if (parts.length === 0) return cb(null, null);
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var p = parts.join('');
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exists(path.join(p, clue), function (itdoes) {
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if (itdoes) return cb(null, p);
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testDir(parts.slice(0, -1));
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});
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}
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testDir(splitPath(currentFullPath));
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}
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exports.sync = function (currentFullPath, clue) {
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function testDir(parts) {
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if (parts.length === 0) return null;
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var p = parts.join('');
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var itdoes = existsSync(path.join(p, clue));
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return itdoes ? p : testDir(parts.slice(0, -1));
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}
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return testDir(splitPath(currentFullPath));
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}
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