On Apr 11, 2020, at 02:02, Lothar Haeger wrote:
>> The prebuilt ports on the buildbot are not building their ports to go into
>> /Applications, so therefore they don’t match your setup — so you can’t use
>> them (even though many would be OK, it’s an all-or-nothing thing.
>
> Ok, so what if I want to change back to the default and set
> "applications_dir" to "/applications/MacPorts"? Will this break the already
> installed ports somehow? Would I have to move them manually to the default
> location? Or uninstall and reinstall them? Or would that only affect new
> installs and updates?
If you change a setting in macports.conf, you should uninstall and reinstall
any ports affected by that setting.
In this case, you should uninstall and reinstall any MacPorts ports that
installed anything in /Applications.
If MacPorts warns you that uninstalling a port will break another port, it's
fine to bypass that warning using the -f flag in this case, since you'll be
reinstalling the port after uninstalling it and thus fixing any breakage.
Since /Applications also contains apps not installed by MacPorts it's not as
simple as just looking into that folder in the Finder, but you can get a list
of ports like this:
port -q contents active | sed -n -E 's,^[[:space:]]*(/Applications/),\1,p' | tr
'\n' '\0' | xargs -0 port -q provides | sort -u | tee
ports-that-install-apps.txt
This will show you all the ports that install applications, but it is also
possible for a port to use an application installed by another port. The list
produced by the following commands should include those ports:
port -p file active | sort -u | xargs grep -El '\${?applications_dir' | sed -E
's,^.*/([^/]+)/Portfile$,\1,' | sort -u | tee ports-that-use-apps.txt
To combine the two lists into one:
cat ports-that-install-apps.txt ports-that-use-apps.txt | sort -u | tee
ports-that-install-or-use-apps.txt
To uninstall those ports:
xargs < ports-that-install-or-use-apps.txt sudo port -f uninstall
To reinstall them:
xargs < ports-that-install-or-use-apps.txt sudo port install
