Question

I’ve spent hours and looked for a solution on internet to figure out how to disallow a checkin operation when comment is not provided by the developer.

I am trying to write a preop checkin trigger which is triggered before every checkin that checks if comment field is empty or not.

So far I’ve managed only display message to the user, but I couldn’t find a way to interrupt checkin operation.

Thanks in advance, any help would be appreciated.

edit: the command for installing trigger as follows:

mktrtype -element -all -preop checkin -exec <trigger_path> COMMENT_CONTROL

Answer 1

Depending on what language you’re using, returning a non-zero return code (i.e. 1) should do the trick. I’ve written this line of Perl many, many times to make a ClearCase trigger not allow an operation to proceed.

exit 1;

Worked every time.