nixpkgs/modules/system/upstart/upstart.nix
Eelco Dolstra 96fe3ba1b7 * Inline make-job.nix.
svn path=/nixos/branches/modular-nixos/; revision=16372
2009-07-15 11:38:17 +00:00

115 lines
2.6 KiB
Nix

{config, pkgs, ...}:
let
inherit (pkgs.lib) mkOption mergeListOption;
makeJob = job:
if job ? jobDrv then
job.jobDrv
else
pkgs.runCommand ("upstart-" + job.name)
{ inherit (job) job;
jobName = job.name;
buildHook = if job ? buildHook then job.buildHook else "true";
}
''
eval "$buildHook"
ensureDir $out/etc/event.d
echo "$job" > $out/etc/event.d/$jobName
'';
jobs = map makeJob (config.jobs ++ config.services.extraJobs);
# Create an etc/event.d directory containing symlinks to the
# specified list of Upstart job files.
jobsDir = pkgs.runCommand "upstart-jobs" {inherit jobs;}
''
ensureDir $out/etc/event.d
for i in $jobs; do
if ln -s $i . ; then
if test -d $i; then
ln -s $i/etc/event.d/* $out/etc/event.d/
fi
else
echo Duplicate entry: $i;
fi;
done
''; # */
in
{
###### interface
options = {
jobs = mkOption {
default = [];
example =
[ { name = "test-job";
job = ''
description "nc"
start on started network-interfaces
respawn
env PATH=/var/run/current-system/sw/bin
exec sh -c "echo 'hello world' | ${pkgs.netcat}/bin/nc -l -p 9000"
'';
}
];
# should have some checks to verify the syntax
merge = pkgs.lib.mergeListOption;
description = ''
This option defines the system jobs started and managed by the
Upstart daemon.
'';
};
services.extraJobs = mkOption {
default = [];
merge = pkgs.lib.mergeListOption;
description = ''
Obsolete - don't use.
'';
};
tests.upstartJobs = mkOption {
internal = true;
default = {};
description = ''
Make it easier to build individual Upstart jobs. (e.g.,
<command>nix-build /etc/nixos/nixos -A
tests.upstartJobs.xserver</command>).
'';
};
};
###### implementation
config = {
environment.etc =
[ { # The Upstart events defined above.
source = "${jobsDir}/etc/event.d";
target = "event.d";
}
];
services.extraJobs =
[ # For the built-in logd job.
{ jobDrv = pkgs.upstart; }
];
# see test/test-upstart-job.sh (!!! check whether this still works)
tests.upstartJobs = { recurseForDerivations = true; } //
builtins.listToAttrs (map (job:
{ name = if job ? jobName then job.jobName else job.name; value = job; }
) jobs);
};
}