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dbc414a8a5
To make the configuration of `yabar` more pleasant and easier to
validate, a NixOS module will be quite helpful.
An example config could look like this:
```
{
programs.yabar = {
enable = true;
bars.top.indicators.exec = "YA_DATE";
};
}
```
The module adds a user-controlled systemd service which runs `yabar` after
starting up X.
150 lines
4 KiB
Nix
150 lines
4 KiB
Nix
{ lib, pkgs, config, ... }:
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with lib;
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let
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cfg = config.programs.yabar;
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mapExtra = v: lib.concatStringsSep "\n" (mapAttrsToList (
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key: val: "${key} = ${if (isString val) then "\"${val}\"" else "${builtins.toString val}"};"
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) v);
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listKeys = r: concatStringsSep "," (map (n: "\"${n}\"") (attrNames r));
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configFile = let
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bars = mapAttrsToList (
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name: cfg: ''
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${name}: {
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font: "${cfg.font}";
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position: "${cfg.position}";
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${mapExtra cfg.extra}
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block-list: [${listKeys cfg.indicators}]
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${concatStringsSep "\n" (mapAttrsToList (
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name: cfg: ''
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${name}: {
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exec: "${cfg.exec}";
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align: "${cfg.align}";
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${mapExtra cfg.extra}
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};
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''
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) cfg.indicators)}
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};
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''
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) cfg.bars;
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in pkgs.writeText "yabar.conf" ''
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bar-list = [${listKeys cfg.bars}];
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${concatStringsSep "\n" bars}
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'';
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in
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{
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options.programs.yabar = {
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enable = mkEnableOption "yabar";
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package = mkOption {
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default = pkgs.yabar;
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example = literalExample "pkgs.yabar-unstable";
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type = types.package;
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description = ''
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The package which contains the `yabar` binary.
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Nixpkgs provides the `yabar` and `yabar-unstable`
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derivations since 18.03, so it's possible to choose.
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'';
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};
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bars = mkOption {
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default = {};
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type = types.attrsOf(types.submodule {
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options = {
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font = mkOption {
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default = "sans bold 9";
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example = "Droid Sans, FontAwesome Bold 9";
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type = types.string;
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description = ''
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The font that will be used to draw the status bar.
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'';
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};
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position = mkOption {
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default = "top";
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example = "bottom";
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type = types.enum [ "top" "bottom" ];
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description = ''
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The position where the bar will be rendered.
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'';
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};
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extra = mkOption {
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default = {};
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type = types.attrsOf types.string;
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description = ''
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An attribute set which contains further attributes of a bar.
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'';
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};
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indicators = mkOption {
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default = {};
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type = types.attrsOf(types.submodule {
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options.exec = mkOption {
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example = "YABAR_DATE";
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type = types.string;
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description = ''
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The type of the indicator to be executed.
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'';
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};
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options.align = mkOption {
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default = "left";
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example = "right";
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type = types.enum [ "left" "center" "right" ];
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description = ''
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Whether to align the indicator at the left or right of the bar.
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'';
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};
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options.extra = mkOption {
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default = {};
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type = types.attrsOf (types.either types.string types.int);
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description = ''
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An attribute set which contains further attributes of a indicator.
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'';
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};
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});
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description = ''
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Indicators that should be rendered by yabar.
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'';
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};
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};
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});
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description = ''
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List of bars that should be rendered by yabar.
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'';
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};
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};
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config = mkIf cfg.enable {
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systemd.user.services.yabar = {
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description = "yabar service";
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wantedBy = [ "graphical-session.target" ];
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partOf = [ "graphical-session.target" ];
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script = ''
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${cfg.package}/bin/yabar -c ${configFile}
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'';
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serviceConfig.Restart = "always";
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};
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};
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}
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