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refactor: modules/users/s6-rc.nix

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Colin 2024-03-21 12:06:23 +00:00
parent 40f6f88a64
commit d4f217a4f5
1 changed files with 50 additions and 52 deletions
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102
modules/users/s6-rc.nix
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@ -6,65 +6,61 @@ let
# infers the service type from the arguments and dispatches appropriately
genService = { name, run, finish, depends }: let
name' = normalizeName name;
runFile = pkgs.writeTextFile {
name = "s6-${name'}-run";
destination = "/${name'}/run";
executable = true;
# TODO: consider using `makeWrapper`/`makeBinaryWrapper`?
text = ''
#!/bin/sh
echo "starting: s6-${name'}"
${run} 2>&1
'';
};
finishFile = pkgs.writeTextFile {
# TODO: use 'writeShellScript'?
name = "s6-${name'}-finish";
destination = "/${name'}/finish";
executable = true;
text = ''
#!/bin/sh
${finish}
'';
};
in if run != null then
genService' name' "longrun" depends (
[ runFile ]
++ lib.optionals (finish != null) [ finishFile ]
)
else
type = if run != null then "longrun" else "bundle";
in genService' {
name = name';
inherit type;
# TODO: a bundle can totally have dependencies. i can't just map them *all* to contents.
# genService' (normalizeName name) "bundle" [] (
# (builtins.map
# (d: pkgs.writeTextFile {
# name = "s6-${name}-contains-${d}";
# destination = "/${normalizeName name}/contents.d/${normalizeName d}";
# text = "";
# })
# depends
# ) ++ [
# # in case the bundle has no contents, ensure `contents.d` still gets made
# (pkgs.runCommandLocal "s6-${name}-contains.d" {} ''
# mkdir -p $out/"${normalizeName name}"/contents.d
# '')
# ]
# )
genService' name' "bundle" [] [
(pkgs.writeTextFile {
name = "s6-${name'}-contents";
destination = "/${name'}/contents";
text = lib.concatStringsSep "\n" (builtins.map normalizeName depends);
})
]
;
genService' = name: type: depends: others: pkgs.symlinkJoin {
depends = lib.optionals (type == "longrun") depends;
finish = finish;
longrun-run = run;
bundle-contents = lib.optionals (type == "bundle") depends;
};
genService' = {
name,
type,
depends,
finish,
longrun-run,
bundle-contents,
}: pkgs.symlinkJoin {
name = "s6-${name}";
paths = others ++ [
paths = [
(pkgs.writeTextFile {
name = "s6-${name}-type";
destination = "/${name}/type";
text = type;
})
] ++ lib.optionals (finish != null) [
(pkgs.writeTextFile {
# TODO: use 'writeShellScript'?
name = "s6-${name}-finish";
destination = "/${name}/finish";
executable = true;
text = ''
#!/bin/sh
${finish}
'';
})
] ++ lib.optionals (longrun-run != null) [
(pkgs.writeTextFile {
name = "s6-${name}-run";
destination = "/${name}/run";
executable = true;
# TODO: consider using `makeWrapper`/`makeBinaryWrapper`?
text = ''
#!/bin/sh
echo "starting: s6-${name}"
${longrun-run} 2>&1
'';
})
] ++ lib.optionals (bundle-contents != null) [
(pkgs.writeTextFile {
name = "s6-${name}-contents";
destination = "/${name}/contents";
text = lib.concatStringsSep "\n" (builtins.map normalizeName bundle-contents);
})
] ++ builtins.map
(d: pkgs.writeTextFile {
name = "s6-${name}-depends-${d}";
@ -132,11 +128,13 @@ let
implicitServices = {
"default.target" = {
serviceConfig.ExecStart = null;
serviceConfig.ExecStopPost = null;
wants = [];
wantedBy = [];
};
"graphical-session.target" = {
serviceConfig.ExecStart = null;
serviceConfig.ExecStopPost = null;
wants = [];
wantedBy = [];
};