When MacPorts asks a yes/no question, add an abort option

[peteswickedale]

Watson:ncurses roy$ sudo port uninstall ncurses
The following versions of ncurses are currently installed:
 1) ncurses @6.1_0 (active)
 2) ncurses @6.1_0+universal
Enter option(s) [1-2/all]: all
Note: It is not recommended to uninstall/deactivate a port that has dependents as it breaks the dependents.
The following ports will break:
 watch @3.3.11_0
...
 fluidsynth @2.0.5_0
Continue? [y/N]: n
--->  Uninstalling ncurses @6.1_0+universal

This doesn't seem right. Should there be an Abort option? BTW, I did a selfupdate just before doing this.

[ryandesign (Ryan Carsten Schmidt)]

You asked MacPorts to uninstall all installed ports named ncurses. There were two. Uninstalling the first one (the active one) would break another port, watch, so MacPorts asked you if you really wanted to do that. You answered no, so MacPorts did not uninstall the active ncurses. But it did uninstall the other one (the inactive one) since you originally asked it to uninstall all of them, and uninstalling that one wouldn't break anything.

So it is working as designed. However, it might make sense to add an abort option which would prevent any further actions from taking place.

[neverpanic (Clemens Lang)]

There is an abort option, that is pressing Ctrl+C. However, that option, I've noticed, does not always work immediately but takes effect when you give any answer after pressing Ctrl+C, which is certainly sub-optimal.