Classlists cannot have DOS-formatted (CR/LF) lines

[rtholmes]

The classlist utility doesn't make these by default, but if you're using Windows you might run into this problem if your copying the output from the terminal instead of piping it directly or using rsync/scp.

[andrewstec]

I believe this is not an issue. I have tried upload a classlist with CRLF (DOS) and LF (UNIX) formats. You can see the line-endings in the images here:

CRLF (DOS):

LF (UNIX):

In both cases, I get upload success messages on the back-end and see no problems with the class list student data:

DOS upload -->

portal      | <I> 4/30/2020, 3:33:30 PM: DatabaseController::writeAudit( Classlist_Upload, removedmyusername, hasBefore: false, hasAfter: false ) - start
portal      | <T> 4/30/2020, 3:33:30 PM: DatabaseController::writeRecord( audit, ...) - writing
portal      | <I> 4/30/2020, 3:33:30 PM: AdminRoutes::postClasslist(..) - done: Classlist upload successful. 9 students processed.

UNIX upload -->

portal      | <I> 4/30/2020, 3:36:27 PM: DatabaseController::writeAudit( Classlist_Upload, removedmyusername, hasBefore: false, hasAfter: false ) - start
portal      | <T> 4/30/2020, 3:36:27 PM: DatabaseController::writeRecord( audit, ...) - writing
portal      | <I> 4/30/2020, 3:36:27 PM: AdminRoutes::postClasslist(..) - done: Classlist upload successful. 9 students processed.

[andrewstec]

I did discover another issue while testing in this area, which may be the issue that you are experiencing.

The issue is a front-end bug that occurs when a file is modified after it has already been selected in the UI:

Steps to re-create:

1. Select a classlist file to upload in the UI. It should appear next to the "Upload Classlist" button.
   
2. Do not click "Upload Classlist"
3. Make a slight change in the file that you selected to upload.
4. Click "Upload Classlist"
5. You should see this error: