On Feb 6, 2013 3:09 PM, "Guillaume ALAUX" <[email protected]> wrote: > > On 6 February 2013 15:08, Guillaume ALAUX <[email protected]> wrote: > > ---------- Forwarded message ---------- > > From: Leonidas Spyropoulos <[email protected]> > > Date: 6 February 2013 14:52 > > Subject: Re: [arch-dev-public] JAVA_HOME in systemd > > To: [email protected] > > > > > > On Wed, Feb 6, 2013 at 1:36 PM, Jan Steffens <[email protected]> wrote: > >> On Wed, Feb 6, 2013 at 1:58 PM, Gaetan Bisson <[email protected]> wrote: > >>> You can always have each Java runtime provide a different file, and > >>> include all of them in each Java service file using > >>> > >>> EnvironmentFile=-/path/to/java/runtime/number/one > >>> EnvironmentFile=-/path/to/java/runtime/number/two > >>> > >>> etc. > >> > >> You can also pass a wildcard expression, avoiding hardcoding several files, > >> maybe like this: > >> > >> EnvironmentFile=-/etc/java-runtime.d/* > >> EnvironmentFile=-/etc/java-runtime > >> > >> Needs testing, but could allow the user to set a default runtime via symlink. > >> > >> Alternatively, just EnvironmentFile=/etc/java-runtime and create this symlink > >> at post_install of every java-runtime, if it doesn't exist already. > >> To be tidy, post_remove then deletes the file if java-runtime.d > >> doesn't exist anymore. > > > > I can't send to mailing list as I am not a dev / TU. > > Isn't it possible to detect the JDK on runtime? Getting it from the > > java command? (or the javac command) > > > > -- > > Caution: breathing may be hazardous to your health. > > > > #include <stdio.h> > > int main(){printf("%s","\x4c\x65\x6f\x6e\x69\x64\x61\x73");} > > The point is to enable the user to statically set which JRE must be > used. Detecting it at each java app runtime would not be ideal. > > And I'd also rather not have to list all potential JRE in all java > systemd files. > > Creating a symlink at post_install if it does not already exist looks > nice to me.
The symlink seems reasonable to me. It would be nice if all the distros/upstreams could agree on a scheme though as this does not sound Arch/systemd specific. Cheers, Tom
