nixpkgs/modules/system/upstart/upstart.nix
Eelco Dolstra 0e3bef4195 * Declare the type of jobs.
svn path=/nixos/branches/modular-nixos/; revision=16375
2009-07-15 13:41:00 +00:00

134 lines
3 KiB
Nix

{config, pkgs, ...}:
let
inherit (pkgs.lib) mkOption mergeListOption types;
makeJob =
{name, job, buildHook ? "true", passthru ? null}:
pkgs.runCommand ("upstart-" + name)
{ inherit buildHook job; }
''
eval "$buildHook"
ensureDir $out/etc/event.d
echo "$job" > $out/etc/event.d/${name}
'';
jobs =
[pkgs.upstart] # for the built-in logd job
++ 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 = [];
description = ''
This option defines the system jobs started and managed by the
Upstart daemon.
'';
type = types.list types.optionSet;
options = {
name = mkOption {
type = types.string;
example = "sshd";
description = ''
Name of the Upstart job.
'';
};
job = mkOption {
type = types.string;
example =
''
description "nc"
start on started network-interfaces
respawn
env PATH=/var/run/current-system/sw/bin
exec sh -c "echo 'hello world' | ${pkgs.netcat}/bin/nc -l -p 9000"
'';
description = ''
Contents of the Upstart job.
'';
};
buildHook = mkOption {
type = types.string;
default = "true";
description = ''
Command run while building the Upstart job. Can be used
to perform simple regression tests (e.g., the Apache
Upstart job uses it to check the syntax of the generated
<filename>httpd.conf</filename>.
'';
};
};
};
services.extraJobs = mkOption {
default = [];
description = ''
Obsolete - don't use.
'';
};
tests.upstartJobs = mkOption {
internal = true;
default = {};
description = ''
Make it easier to build individual Upstart jobs. (e.g.,
<command>nix-build /etc/nixos/nixos -A
tests.upstartJobs.xserver</command>).
'';
};
};
###### implementation
config = {
environment.etc =
[ { # The Upstart events defined above.
source = "${jobsDir}/etc/event.d";
target = "event.d";
}
];
# 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);
};
}