| module.exports = realpath | |
| realpath.realpath = realpath | |
| realpath.sync = realpathSync | |
| realpath.realpathSync = realpathSync | |
| realpath.monkeypatch = monkeypatch | |
| realpath.unmonkeypatch = unmonkeypatch | |
| 
 | |
| var fs = require('fs') | |
| var origRealpath = fs.realpath | |
| var origRealpathSync = fs.realpathSync | |
| 
 | |
| var version = process.version | |
| var ok = /^v[0-5]\./.test(version) | |
| var old = require('./old.js') | |
| 
 | |
| function newError (er) { | |
|   return er && er.syscall === 'realpath' && ( | |
|     er.code === 'ELOOP' || | |
|     er.code === 'ENOMEM' || | |
|     er.code === 'ENAMETOOLONG' | |
|   ) | |
| } | |
| 
 | |
| function realpath (p, cache, cb) { | |
|   if (ok) { | |
|     return origRealpath(p, cache, cb) | |
|   } | |
| 
 | |
|   if (typeof cache === 'function') { | |
|     cb = cache | |
|     cache = null | |
|   } | |
|   origRealpath(p, cache, function (er, result) { | |
|     if (newError(er)) { | |
|       old.realpath(p, cache, cb) | |
|     } else { | |
|       cb(er, result) | |
|     } | |
|   }) | |
| } | |
| 
 | |
| function realpathSync (p, cache) { | |
|   if (ok) { | |
|     return origRealpathSync(p, cache) | |
|   } | |
| 
 | |
|   try { | |
|     return origRealpathSync(p, cache) | |
|   } catch (er) { | |
|     if (newError(er)) { | |
|       return old.realpathSync(p, cache) | |
|     } else { | |
|       throw er | |
|     } | |
|   } | |
| } | |
| 
 | |
| function monkeypatch () { | |
|   fs.realpath = realpath | |
|   fs.realpathSync = realpathSync | |
| } | |
| 
 | |
| function unmonkeypatch () { | |
|   fs.realpath = origRealpath | |
|   fs.realpathSync = origRealpathSync | |
| }
 |