bash-completion: port(1) ui_warn output is displayed during tab completion

[paxperscientiam (Chris)]

Never noticed this before, so it may be a new thing. Basically, after writing, for example, sudo port upgrade a and tabbing, the first completion result is "Warning: port definitions are more than two weeks old, consider updating them by running 'port selfupdate'."

Is this intentional?

Demo: ​https://www.dropbox.com/s/n7v8312bx5l8uej/Screen%20Recording%202019-05-07%20at%209.53.15%20AM.mov?dl=0

EDIT: I forgot to note, that this only occurs when definitions are actually out of date.

[jmroot (Joshua Root)]

I'm going to assume you're using bash-completion here.

[paxperscientiam (Chris)]

Yeah, sorry. You are correct!

Replying to jmroot:

I'm going to assume you're using bash-completion here.

[raimue (Rainer Müller)]

Thanks for the detailed report with the screencast! This is definitely not intentional. I did not want to redirect all error output, because if the port completion command fails, it could contain actual helpful error messages. But I agree that in this case, although correct, it is disruptive. On the other hand, you might have run an port upgrade and installed some outdated version without the warning...

In the hope this will also be useful for other other automated scripts, I propose we change the behavior for the next MacPorts base version. As quiet mode via port -q is already in use in the bash-completion script, we could suppress the warning in quiet mode: ​https://github.com/macports/macports-base/pull/126

[raimue (Rainer Müller)]

In a214a721e83cfd30161b3aa209e6506af19b4804/macports-base (master):

port: Suppress old PortIndex warning in quiet mode

If quiet mode is active, suppress the old PortIndex warning in order to
avoid these spurious warnings in non-interactive scripts such as the
bash-completion helper.

See: #58452

[raimue (Rainer Müller)]

As the solution described above has been released, close this ticket.