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https://github.com/nix-community/home-manager
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433e686675
Add an option to programs.autorandr's configModule to allow arbitrary extra config lines. No option exists for adding arbitrary key/values to generated autorandr profile config, as is common in other nix modules. This commit adds one.
379 lines
11 KiB
Nix
379 lines
11 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.programs.autorandr;
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matrixOf = n: m: elemType:
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mkOptionType rec {
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name = "matrixOf";
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description =
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"${toString n}×${toString m} matrix of ${elemType.description}s";
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check = xss:
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let listOfSize = l: xs: isList xs && length xs == l;
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in listOfSize n xss
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&& all (xs: listOfSize m xs && all elemType.check xs) xss;
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merge = mergeOneOption;
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getSubOptions = prefix: elemType.getSubOptions (prefix ++ [ "*" "*" ]);
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getSubModules = elemType.getSubModules;
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substSubModules = mod: matrixOf n m (elemType.substSubModules mod);
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functor = (defaultFunctor name) // { wrapped = elemType; };
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};
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profileModule = types.submodule {
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options = {
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fingerprint = mkOption {
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type = types.attrsOf types.str;
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description = ''
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Output name to EDID mapping.
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Use `autorandr --fingerprint` to get current setup values.
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'';
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default = { };
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};
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config = mkOption {
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type = types.attrsOf configModule;
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description = "Per output profile configuration.";
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default = { };
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};
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hooks = mkOption {
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type = profileHooksModule;
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description = "Profile hook scripts.";
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default = { };
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};
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};
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};
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configModule = types.submodule {
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options = {
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enable = mkOption {
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type = types.bool;
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description = "Whether to enable the output.";
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default = true;
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};
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crtc = mkOption {
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type = types.nullOr types.ints.unsigned;
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description = "Output video display controller.";
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default = null;
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example = 0;
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};
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primary = mkOption {
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type = types.bool;
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description = "Whether output should be marked as primary";
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default = false;
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};
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position = mkOption {
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type = types.str;
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description = "Output position";
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default = "";
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example = "5760x0";
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};
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mode = mkOption {
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type = types.str;
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description = "Output resolution.";
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default = "";
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example = "3840x2160";
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};
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rate = mkOption {
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type = types.str;
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description = "Output framerate.";
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default = "";
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example = "60.00";
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};
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gamma = mkOption {
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type = types.str;
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description = "Output gamma configuration.";
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default = "";
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example = "1.0:0.909:0.833";
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};
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rotate = mkOption {
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type = types.nullOr (types.enum [ "normal" "left" "right" "inverted" ]);
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description = "Output rotate configuration.";
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default = null;
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example = "left";
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};
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transform = mkOption {
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type = types.nullOr (matrixOf 3 3 types.float);
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default = null;
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example = literalExpression ''
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[
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[ 0.6 0.0 0.0 ]
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[ 0.0 0.6 0.0 ]
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[ 0.0 0.0 1.0 ]
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]
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'';
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description = ''
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Refer to
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{manpage}`xrandr(1)`
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for the documentation of the transform matrix.
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'';
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};
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dpi = mkOption {
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type = types.nullOr types.ints.positive;
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description = "Output DPI configuration.";
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default = null;
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example = 96;
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};
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scale = mkOption {
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type = types.nullOr (types.submodule {
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options = {
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method = mkOption {
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type = types.enum [ "factor" "pixel" ];
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description = "Output scaling method.";
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default = "factor";
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example = "pixel";
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};
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x = mkOption {
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type = types.either types.float types.ints.positive;
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description = "Horizontal scaling factor/pixels.";
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};
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y = mkOption {
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type = types.either types.float types.ints.positive;
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description = "Vertical scaling factor/pixels.";
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};
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};
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});
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description = ''
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Output scale configuration.
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Either configure by pixels or a scaling factor. When using pixel method the
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{manpage}`xrandr(1)`
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option
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`--scale-from`
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will be used; when using factor method the option
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`--scale`
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will be used.
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This option is a shortcut version of the transform option and they are mutually
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exclusive.
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'';
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default = null;
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example = literalExpression ''
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{
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x = 1.25;
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y = 1.25;
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}
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'';
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};
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filter = mkOption {
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type = types.nullOr (types.enum [ "bilinear" "nearest" ]);
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description = "Interpolation method to be used for scaling the output.";
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default = null;
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example = "nearest";
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};
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extraConfig = mkOption {
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type = types.lines;
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description = "Extra lines to append to this profile's config.";
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default = "";
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example = literalExpression ''
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'''
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x-prop-non_desktop 0
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some-key some-value
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'''
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'';
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};
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};
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};
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hookType = types.lines;
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globalHooksModule = types.submodule {
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options = {
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postswitch = mkOption {
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type = types.attrsOf hookType;
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description = "Postswitch hook executed after mode switch.";
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default = { };
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};
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preswitch = mkOption {
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type = types.attrsOf hookType;
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description = "Preswitch hook executed before mode switch.";
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default = { };
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};
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predetect = mkOption {
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type = types.attrsOf hookType;
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description = ''
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Predetect hook executed before autorandr attempts to run xrandr.
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'';
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default = { };
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};
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};
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};
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profileHooksModule = types.submodule {
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options = {
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postswitch = mkOption {
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type = hookType;
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description = "Postswitch hook executed after mode switch.";
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default = "";
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};
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preswitch = mkOption {
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type = hookType;
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description = "Preswitch hook executed before mode switch.";
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default = "";
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};
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predetect = mkOption {
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type = hookType;
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description = ''
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Predetect hook executed before autorandr attempts to run xrandr.
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'';
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default = "";
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};
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};
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};
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hookToFile = folder: name: hook:
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nameValuePair "autorandr/${folder}/${name}" {
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source = "${pkgs.writeShellScriptBin "hook" hook}/bin/hook";
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};
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profileToFiles = name: profile:
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with profile;
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mkMerge ([
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{
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"autorandr/${name}/setup".text = concatStringsSep "\n"
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(mapAttrsToList fingerprintToString fingerprint);
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"autorandr/${name}/config".text =
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concatStringsSep "\n" (mapAttrsToList configToString profile.config);
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}
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(mkIf (hooks.postswitch != "")
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(listToAttrs [ (hookToFile name "postswitch" hooks.postswitch) ]))
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(mkIf (hooks.preswitch != "")
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(listToAttrs [ (hookToFile name "preswitch" hooks.preswitch) ]))
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(mkIf (hooks.predetect != "")
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(listToAttrs [ (hookToFile name "predetect" hooks.predetect) ]))
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]);
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fingerprintToString = name: edid: "${name} ${edid}";
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configToString = name: config:
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if config.enable then
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concatStringsSep "\n" ([ "output ${name}" ]
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++ optional (config.position != "") "pos ${config.position}"
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++ optional (config.crtc != null) "crtc ${toString config.crtc}"
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++ optional config.primary "primary"
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++ optional (config.dpi != null) "dpi ${toString config.dpi}"
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++ optional (config.gamma != "") "gamma ${config.gamma}"
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++ optional (config.mode != "") "mode ${config.mode}"
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++ optional (config.rate != "") "rate ${config.rate}"
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++ optional (config.rotate != null) "rotate ${config.rotate}"
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++ optional (config.filter != null) "filter ${config.filter}"
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++ optional (config.transform != null) ("transform "
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+ concatMapStringsSep "," toString (flatten config.transform))
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++ optional (config.scale != null)
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((if config.scale.method == "factor" then "scale" else "scale-from")
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+ " ${toString config.scale.x}x${toString config.scale.y}")
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++ optional (config.extraConfig != "") config.extraConfig)
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else ''
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output ${name}
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off
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'';
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in {
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options = {
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programs.autorandr = {
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enable = mkEnableOption "Autorandr";
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hooks = mkOption {
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type = globalHooksModule;
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description = "Global hook scripts";
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default = { };
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example = literalExpression ''
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{
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postswitch = {
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"notify-i3" = "''${pkgs.i3}/bin/i3-msg restart";
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"change-background" = readFile ./change-background.sh;
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"change-dpi" = '''
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case "$AUTORANDR_CURRENT_PROFILE" in
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default)
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DPI=120
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;;
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home)
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DPI=192
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;;
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work)
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DPI=144
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;;
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*)
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echo "Unknown profile: $AUTORANDR_CURRENT_PROFILE"
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exit 1
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esac
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echo "Xft.dpi: $DPI" | ''${pkgs.xorg.xrdb}/bin/xrdb -merge
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'''
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};
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}
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'';
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};
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profiles = mkOption {
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type = types.attrsOf profileModule;
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description = "Autorandr profiles specification.";
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default = { };
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example = literalExpression ''
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{
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"work" = {
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fingerprint = {
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eDP1 = "<EDID>";
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DP1 = "<EDID>";
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};
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config = {
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eDP1.enable = false;
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DP1 = {
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enable = true;
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crtc = 0;
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primary = true;
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position = "0x0";
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mode = "3840x2160";
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gamma = "1.0:0.909:0.833";
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rate = "60.00";
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rotate = "left";
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};
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};
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hooks.postswitch = readFile ./work-postswitch.sh;
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};
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}
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'';
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};
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};
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};
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config = mkIf cfg.enable {
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assertions = flatten (mapAttrsToList (profile:
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{ config, ... }:
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mapAttrsToList (output: opts: {
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assertion = opts.scale == null || opts.transform == null;
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message = ''
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Cannot use the profile output options 'scale' and 'transform' simultaneously.
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Check configuration for: programs.autorandr.profiles.${profile}.config.${output}
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'';
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}) config) cfg.profiles);
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home.packages = [ pkgs.autorandr ];
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xdg.configFile = mkMerge ([
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(mapAttrs' (hookToFile "postswitch.d") cfg.hooks.postswitch)
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(mapAttrs' (hookToFile "preswitch.d") cfg.hooks.preswitch)
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(mapAttrs' (hookToFile "predetect.d") cfg.hooks.predetect)
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(mkMerge (mapAttrsToList profileToFiles cfg.profiles))
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]);
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};
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meta.maintainers = [ maintainers.uvnikita ];
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}
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