37 lines
1.2 KiB
Nix
37 lines
1.2 KiB
Nix
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with builtins;
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with import (toString ../functions);
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{config, lib, ...}: {
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options = with lib; with types; {
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environment.cascade-source.enable = mkOption {
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default = true;
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type = bool;
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description = ''
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Include cascade source code configured for nixos-rebuild.
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'';
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};
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};
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config = with lib; {
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system.activationScripts.cascade-source = mkMerge [
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(mkIf config.environment.cascade-source.enable ''
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mkdir -m 0755 -p /usr/src /etc/nixos
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[ -h /usr/src/cascade ] && rm /usr/src/cascade # do this first so the dir test that comes next won't read the symlink as a dir
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[ -d /usr/src/cascade ] && mv /usr/src/cascade /usr/src/cascade.before-nixos
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ln -sfn ${./..} /usr/src/cascade # but why isn't this atomic?
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ln -sf /usr/src/cascade/hosts/${config.networking.hostName}.nix /etc/nixos/configuration.nix
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'')
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(mkIf (!config.environment.cascade-source.enable) ''
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# if we delete the symlink version of cascade, we delete a symlink in /etc/nixos as well
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[ -h /usr/src/cascade ] && rm /usr/src/cascade && \
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[ -h /etc/nixos/configuration.nix ] && rm /etc/nixos/configuration.nix
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'')
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];
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nix.nixPath = [
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"nixos-config=/etc/nixos/configuration.nix"
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];
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};
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}
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