| module.exports = isexe | |
| isexe.sync = sync | |
| 
 | |
| var fs = require('fs') | |
| 
 | |
| function checkPathExt (path, options) { | |
|   var pathext = options.pathExt !== undefined ? | |
|     options.pathExt : process.env.PATHEXT | |
| 
 | |
|   if (!pathext) { | |
|     return true | |
|   } | |
| 
 | |
|   pathext = pathext.split(';') | |
|   if (pathext.indexOf('') !== -1) { | |
|     return true | |
|   } | |
|   for (var i = 0; i < pathext.length; i++) { | |
|     var p = pathext[i].toLowerCase() | |
|     if (p && path.substr(-p.length).toLowerCase() === p) { | |
|       return true | |
|     } | |
|   } | |
|   return false | |
| } | |
| 
 | |
| function checkStat (stat, path, options) { | |
|   if (!stat.isSymbolicLink() && !stat.isFile()) { | |
|     return false | |
|   } | |
|   return checkPathExt(path, options) | |
| } | |
| 
 | |
| function isexe (path, options, cb) { | |
|   fs.stat(path, function (er, stat) { | |
|     cb(er, er ? false : checkStat(stat, path, options)) | |
|   }) | |
| } | |
| 
 | |
| function sync (path, options) { | |
|   return checkStat(fs.statSync(path), path, options) | |
| }
 |