Propose --follow-dependents

[Liontooth (David Liontooth)]

When an uninstall command fails because of dependents, the user is prompted to uninstall the dependents first:

# port uninstall gimp2 @2.8.2_2+help_browser+python27
--->  Unable to uninstall gimp2 @2.8.2_2+help_browser+python27, the following ports depend on it:
--->    gimp-app @2.8.0_0
--->    gimp-app @2.8.2_0
--->    gimp-gap @2.6.0_5
--->    gimp-jp2 @2.2.0_4
--->    gimp-jp2 @2.2.0_5
--->    gimp-lqr-plugin @0.7.1_1
--->    gutenprint @5.2.7_0
--->    gutenprint @5.2.7_1
--->    icns-gimp @0.1_1
--->    ufraw @0.18_2
--->    xsane @0.998_0
--->    xsane @0.998_1
Error: org.macports.uninstall for port gimp2 returned: Please uninstall the ports that depend on gimp2 first.

When this error is triggered, could the feedback add,

Please uninstall the ports that depend on gimp2 first, or use uninstall --follow-dependents

You wrote the code, tell people about it, make everybody happy.

Cheers, Dave

[kurthindenburg (Kurt Hindenburg)]

With recent macports versions, the user is prompted with a question:

Note: It is not recommended to uninstall/deactivate a port that has dependents as it breaks the dependents.
The following ports will break: XYZ
Continue? [y/N]:

To get the old version, use -N so I still guess the text output could still be changed.