Lennart Poettering <mzerqung@xxxxxxxxxxx> writes: > On Sat, 17.03.12 11:41, Tom Lane (tgl@xxxxxxxxxx) wrote: >> Tomasz Torcz <tomek@xxxxxxxxxxxxxx> writes: >>> You can try >>> systemctl show -p Environment <unit> >> [ experiments with that ... ] Hm, the output format seems pretty >> ill-designed, but I guess I can pick it apart with some careful >> sed'ing. Better than trying to handle .include for myself, anyway. >> Thanks for the suggestion! > Hmm, what are you mising in the output format? We are always interested > in suggestions for imprvoement. The case that I was interested in was for postgresql, which needs to scrape the PGPORT port number setting and the PGDATA data directory path out of postgresql.service. Assuming that somebody has overridden the PGPORT setting by using a custom service file that .include's the standard one, what I find "systemctl show" producing is a line like Environment=PGPORT=5432 PGDATA=/var/lib/pgsql/data PGPORT=5433 So I have to pick this apart, understanding that later entries override earlier ones. And the really nasty problem with it is that the layout is simply broken by environment variable names or values that contain spaces. I don't mind so much needing to implement a "take the last match" rule, but it'd be nice if I didn't have to tell people they can't use a PGDATA path that includes spaces. I don't have an immediate proposal for making it better though. > Note that this command will not show you the environment inherited by > the PID 1 or any other env that is passed on that is not explicitly > configured in the unit files. No, that's not a problem, I just need to know what's configured in the unit file(s). BTW, while I'm thinking about it: I found in testing that any editing of the on-disk files was reflected immediately in "systemctl show"'s output. Which was exactly what I wanted, but it surprised me quite a bit --- I was expecting that what this command shows is systemd's internal state and thus I'd have to do daemon-reload to make it update after an edit. Can I expect that that behavior will persist, or am I relying on something that's going to change? regards, tom lane -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel
