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Allow to run an init script on startup.

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This allows for example to set specific environment variables,
before starting the script without needing to modify the target.
This commit is contained in:
Derek Kulinski 2022-04-28 17:22:18 -07:00
parent 223f4ffc41
commit b7c5c58cb4
1 changed files with 6 additions and 5 deletions
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11
default.nix
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@ -80,19 +80,20 @@ in rec {
};
};
makeStartup = { target, nixUserChrootFlags, nix-user-chroot', run }:
makeStartup = { target, nixUserChrootFlags, nix-user-chroot', run, initScript }:
let
# Avoid re-adding a store path into the store
path = toStorePath target;
in
writeScript "startup" ''
#!/bin/sh
${initScript}
.${nix-user-chroot'}/bin/nix-user-chroot -n ./nix ${nixUserChrootFlags} -- ${path}${run} "$@"
'';
nix-bootstrap = { target, extraTargets ? [], run, nix-user-chroot' ? nix-user-chroot, nixUserChrootFlags ? "" }:
nix-bootstrap = { target, extraTargets ? [], run, nix-user-chroot' ? nix-user-chroot, nixUserChrootFlags ? "", initScript ? "" }:
let
script = makeStartup { inherit target nixUserChrootFlags nix-user-chroot' run; };
script = makeStartup { inherit target nixUserChrootFlags nix-user-chroot' run initScript; };
in makebootstrap {
startup = ".${script} '\"$@\"'";
targets = [ "${script}" ] ++ extraTargets;
@ -111,8 +112,8 @@ in rec {
makeFlags = o.makeFlags ++ [
''ENV_PATH="${lib.makeBinPath targets}"''
];
}); in { target, extraTargets ? [], run }: nix-bootstrap {
inherit target extraTargets run;
}); in { target, extraTargets ? [], run, initScript ? "" }: nix-bootstrap {
inherit target extraTargets run initScript;
nix-user-chroot' = nix-user-chroot'' extraTargets;
};
}