I was trying to get a listing of files in a directory and send the output
to clients using socket.io. First I tried with readdir which works good and
pretty fast but is not able to sort the files by modified date (or atleast
I wasnt able to find out how).
fs.readdir(logDrivesPath.replace(/#/,drive), function(err, files){
console.log(files);
socket.emit('filesList', files);
});
so i then used child process ls to get the listing in correct sorting order
var ls = exec('ls -t ' + logDrivesPath.replace(/#/,drive) + ' | xargs -n1
basename',
function(err, stdout, stderr){
console.log("ls exec completed");
if(err == null){
socket.emit('filesList',
stdout.toString('utf8').split('\n'));
}
else{
console.log(stderr);
console.log(err);
}
});
the second option works fine but its much slower than the readdir option.
It almost takes 3-4 seconds to get the listing while readdir returns the
same list in less than a second so there is a significant difference. I was
wondering if there is a way to use readdir but get the files sorted
properly and secondly why is the childprocess option so much slower than
readdir.
Thanks
Adeel
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