77 lines
1.8 KiB
Nix
77 lines
1.8 KiB
Nix
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{
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pkgs,
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lib,
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config,
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...
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}:
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let
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db_path = "/var/nix-index/current";
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mode = "755";
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user = "nix-index";
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in
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{
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users.users."${user}" = {
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isSystemUser = true;
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group = user;
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};
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users.groups."${user}" = { };
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nix.settings.allowed-users = [ user ];
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environment.systemPackages = with pkgs; [
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nix-index
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];
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systemd.tmpfiles.rules = [
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"d /var/nix-index 0${mode} ${user} ${user} 14d"
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];
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environment.sessionVariables.NIX_INDEX_DATABASE = db_path;
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systemd.services.nix-index-update = {
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description = "update nix-index database";
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after = [
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"network-online.target"
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"nix-daemon.service"
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];
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wants = [
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"network-online.target"
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"nix-daemon.service"
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];
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serviceConfig = {
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Type = "simple";
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Nice = 19;
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# UMask = mode;
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# DynamicUser = true;
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ReadWritePaths = "/var/nix-index/";
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CacheDirectory = "index-cache";
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User = user;
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Group = user;
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};
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environment.NIX_PATH = lib.concatStringsSep ":" config.nix.nixPath;
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script = ''
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platform="$(uname -m | sed 's/^arm64$/aarch64/')-$(uname | tr "[:upper:]" "[:lower:]")"
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path="/var/nix-index/index-$platform-$(date -I)"
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mkdir -p "$path" -m ${mode}
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XDG_CACHE_HOME=$CACHE_DIRECTORY ${lib.getExe' pkgs.nix-index "nix-index"} --show-trace -c 0 -s $platform --db "$path" || exit 1
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rm -f ${db_path}
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ln -s "$path" ${db_path}
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# && chmod ${mode} ${db_path}
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echo "link success"
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'';
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enable = true;
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};
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systemd.timers.nix-index-update = {
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description = "regularly update nix-index database";
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timerConfig.Persistent = true;
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timerConfig.OnCalendar = "Mon *-*-* 00:00:00";
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wantedBy = [
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"multi-user.target"
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"timers.target"
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];
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enable = true;
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};
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}
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