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'use strict'
var glob = require('glob')
var path = require('path')
function trueCasePathSync(fsPath) {
// Normalize the path so as to resolve . and .. components.
// !! As of Node v4.1.1, a path starting with ../ is NOT resolved relative
// !! to the current dir, and glob.sync() below then fails.
// !! When in doubt, resolve with fs.realPathSync() *beforehand*.
var fsPathNormalized = path.normalize(fsPath)
// OSX: HFS+ stores filenames in NFD (decomposed normal form) Unicode format,
// so we must ensure that the input path is in that format first.
if (process.platform === 'darwin') fsPathNormalized = fsPathNormalized.normalize('NFD')
// !! Windows: Curiously, the drive component mustn't be part of a glob,
// !! otherwise glob.sync() will invariably match nothing.
// !! Thus, we remove the drive component and instead pass it in as the 'cwd'
// !! (working dir.) property below.
var pathRoot = path.parse(fsPathNormalized).root
var noDrivePath = fsPathNormalized.slice(Math.max(pathRoot.length - 1, 0))
// Perform case-insensitive globbing (on Windows, relative to the drive /
// network share) and return the 1st match, if any.
// Fortunately, glob() with nocase case-corrects the input even if it is
// a *literal* path.
return glob.sync(noDrivePath, { nocase: true, cwd: pathRoot })[0]
}
module.exports = trueCasePathSync
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