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'use strict';
var fs = require('fs');
function isExe(mode, gid, uid) {
if (process.platform === 'win32') {
return true;
}
return (mode & parseInt('0001', 8)) ||
(mode & parseInt('0010', 8)) && process.getgid && gid === process.getgid() ||
(mode & parseInt('0100', 8)) && process.getuid && uid === process.getuid();
}
module.exports = function (name, cb) {
if (typeof name !== 'string') {
throw new Error('Filename required');
}
fs.stat(name, function (err, stats) {
if (err) {
cb(err);
return;
}
if (stats && stats.isFile() && isExe(stats.mode, stats.gid, stats.uid)) {
cb(null, true);
return;
}
cb(null, false);
});
};
module.exports.sync = function (name) {
if (typeof name !== 'string') {
throw new Error('Filename required');
}
var file = fs.statSync(name);
if (file && file.isFile() && isExe(file.mode, file.gid, file.uid)) {
return true;
}
return false;
};