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home-manager/modules/programs/autorandr.nix
Emily 9f9e277b60 treewide: remove now-redundant lib.mdDoc calls
These (and the `*MD` functions apart from `literalMD`) are now no-ops
in nixpkgs and serve no purpose other than to add additional noise and
potentially mislead people into thinking unmarked DocBook documentation
will still be accepted.

Note that if backporting changes including documentation to 23.05,
the `mdDoc` calls will need to be re-added.

To reproduce this commit, run:

    $ NIX_PATH=nixpkgs=flake:nixpkgs/e7e69199f0372364a6106a1e735f68604f4c5a25 \
      nix shell nixpkgs#coreutils \
      -c find . -name '*.nix' \
      -exec nix run -- github:emilazy/nix-doc-munge/98dadf1f77351c2ba5dcb709a2a171d655f15099 \
      --strip {} +
    $ ./format
2023-07-17 18:49:09 +01:00

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{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.programs.autorandr;
matrixOf = n: m: elemType:
mkOptionType rec {
name = "matrixOf";
description =
"${toString n}×${toString m} matrix of ${elemType.description}s";
check = xss:
let listOfSize = l: xs: isList xs && length xs == l;
in listOfSize n xss
&& all (xs: listOfSize m xs && all elemType.check xs) xss;
merge = mergeOneOption;
getSubOptions = prefix: elemType.getSubOptions (prefix ++ [ "*" "*" ]);
getSubModules = elemType.getSubModules;
substSubModules = mod: matrixOf n m (elemType.substSubModules mod);
functor = (defaultFunctor name) // { wrapped = elemType; };
};
profileModule = types.submodule {
options = {
fingerprint = mkOption {
type = types.attrsOf types.str;
description = ''
Output name to EDID mapping.
Use `autorandr --fingerprint` to get current setup values.
'';
default = { };
};
config = mkOption {
type = types.attrsOf configModule;
description = "Per output profile configuration.";
default = { };
};
hooks = mkOption {
type = profileHooksModule;
description = "Profile hook scripts.";
default = { };
};
};
};
configModule = types.submodule {
options = {
enable = mkOption {
type = types.bool;
description = "Whether to enable the output.";
default = true;
};
crtc = mkOption {
type = types.nullOr types.ints.unsigned;
description = "Output video display controller.";
default = null;
example = 0;
};
primary = mkOption {
type = types.bool;
description = "Whether output should be marked as primary";
default = false;
};
position = mkOption {
type = types.str;
description = "Output position";
default = "";
example = "5760x0";
};
mode = mkOption {
type = types.str;
description = "Output resolution.";
default = "";
example = "3840x2160";
};
rate = mkOption {
type = types.str;
description = "Output framerate.";
default = "";
example = "60.00";
};
gamma = mkOption {
type = types.str;
description = "Output gamma configuration.";
default = "";
example = "1.0:0.909:0.833";
};
rotate = mkOption {
type = types.nullOr (types.enum [ "normal" "left" "right" "inverted" ]);
description = "Output rotate configuration.";
default = null;
example = "left";
};
transform = mkOption {
type = types.nullOr (matrixOf 3 3 types.float);
default = null;
example = literalExpression ''
[
[ 0.6 0.0 0.0 ]
[ 0.0 0.6 0.0 ]
[ 0.0 0.0 1.0 ]
]
'';
description = ''
Refer to
{manpage}`xrandr(1)`
for the documentation of the transform matrix.
'';
};
dpi = mkOption {
type = types.nullOr types.ints.positive;
description = "Output DPI configuration.";
default = null;
example = 96;
};
scale = mkOption {
type = types.nullOr (types.submodule {
options = {
method = mkOption {
type = types.enum [ "factor" "pixel" ];
description = "Output scaling method.";
default = "factor";
example = "pixel";
};
x = mkOption {
type = types.either types.float types.ints.positive;
description = "Horizontal scaling factor/pixels.";
};
y = mkOption {
type = types.either types.float types.ints.positive;
description = "Vertical scaling factor/pixels.";
};
};
});
description = ''
Output scale configuration.
Either configure by pixels or a scaling factor. When using pixel method the
{manpage}`xrandr(1)`
option
`--scale-from`
will be used; when using factor method the option
`--scale`
will be used.
This option is a shortcut version of the transform option and they are mutually
exclusive.
'';
default = null;
example = literalExpression ''
{
x = 1.25;
y = 1.25;
}
'';
};
filter = mkOption {
type = types.nullOr (types.enum [ "bilinear" "nearest" ]);
description = "Interpolation method to be used for scaling the output.";
default = null;
example = "nearest";
};
};
};
hookType = types.lines;
globalHooksModule = types.submodule {
options = {
postswitch = mkOption {
type = types.attrsOf hookType;
description = "Postswitch hook executed after mode switch.";
default = { };
};
preswitch = mkOption {
type = types.attrsOf hookType;
description = "Preswitch hook executed before mode switch.";
default = { };
};
predetect = mkOption {
type = types.attrsOf hookType;
description = ''
Predetect hook executed before autorandr attempts to run xrandr.
'';
default = { };
};
};
};
profileHooksModule = types.submodule {
options = {
postswitch = mkOption {
type = hookType;
description = "Postswitch hook executed after mode switch.";
default = "";
};
preswitch = mkOption {
type = hookType;
description = "Preswitch hook executed before mode switch.";
default = "";
};
predetect = mkOption {
type = hookType;
description = ''
Predetect hook executed before autorandr attempts to run xrandr.
'';
default = "";
};
};
};
hookToFile = folder: name: hook:
nameValuePair "autorandr/${folder}/${name}" {
source = "${pkgs.writeShellScriptBin "hook" hook}/bin/hook";
};
profileToFiles = name: profile:
with profile;
mkMerge ([
{
"autorandr/${name}/setup".text = concatStringsSep "\n"
(mapAttrsToList fingerprintToString fingerprint);
"autorandr/${name}/config".text =
concatStringsSep "\n" (mapAttrsToList configToString profile.config);
}
(mkIf (hooks.postswitch != "")
(listToAttrs [ (hookToFile name "postswitch" hooks.postswitch) ]))
(mkIf (hooks.preswitch != "")
(listToAttrs [ (hookToFile name "preswitch" hooks.preswitch) ]))
(mkIf (hooks.predetect != "")
(listToAttrs [ (hookToFile name "predetect" hooks.predetect) ]))
]);
fingerprintToString = name: edid: "${name} ${edid}";
configToString = name: config:
if config.enable then
concatStringsSep "\n" ([ "output ${name}" ]
++ optional (config.position != "") "pos ${config.position}"
++ optional (config.crtc != null) "crtc ${toString config.crtc}"
++ optional config.primary "primary"
++ optional (config.dpi != null) "dpi ${toString config.dpi}"
++ optional (config.gamma != "") "gamma ${config.gamma}"
++ optional (config.mode != "") "mode ${config.mode}"
++ optional (config.rate != "") "rate ${config.rate}"
++ optional (config.rotate != null) "rotate ${config.rotate}"
++ optional (config.filter != null) "filter ${config.filter}"
++ optional (config.transform != null) ("transform "
+ concatMapStringsSep "," toString (flatten config.transform))
++ optional (config.scale != null)
((if config.scale.method == "factor" then "scale" else "scale-from")
+ " ${toString config.scale.x}x${toString config.scale.y}"))
else ''
output ${name}
off
'';
in {
options = {
programs.autorandr = {
enable = mkEnableOption "Autorandr";
hooks = mkOption {
type = globalHooksModule;
description = "Global hook scripts";
default = { };
example = literalExpression ''
{
postswitch = {
"notify-i3" = "''${pkgs.i3}/bin/i3-msg restart";
"change-background" = readFile ./change-background.sh;
"change-dpi" = '''
case "$AUTORANDR_CURRENT_PROFILE" in
default)
DPI=120
;;
home)
DPI=192
;;
work)
DPI=144
;;
*)
echo "Unknown profile: $AUTORANDR_CURRENT_PROFILE"
exit 1
esac
echo "Xft.dpi: $DPI" | ''${pkgs.xorg.xrdb}/bin/xrdb -merge
'''
};
}
'';
};
profiles = mkOption {
type = types.attrsOf profileModule;
description = "Autorandr profiles specification.";
default = { };
example = literalExpression ''
{
"work" = {
fingerprint = {
eDP1 = "<EDID>";
DP1 = "<EDID>";
};
config = {
eDP1.enable = false;
DP1 = {
enable = true;
crtc = 0;
primary = true;
position = "0x0";
mode = "3840x2160";
gamma = "1.0:0.909:0.833";
rate = "60.00";
rotate = "left";
};
};
hooks.postswitch = readFile ./work-postswitch.sh;
};
}
'';
};
};
};
config = mkIf cfg.enable {
assertions = flatten (mapAttrsToList (profile:
{ config, ... }:
mapAttrsToList (output: opts: {
assertion = opts.scale == null || opts.transform == null;
message = ''
Cannot use the profile output options 'scale' and 'transform' simultaneously.
Check configuration for: programs.autorandr.profiles.${profile}.config.${output}
'';
}) config) cfg.profiles);
home.packages = [ pkgs.autorandr ];
xdg.configFile = mkMerge ([
(mapAttrs' (hookToFile "postswitch.d") cfg.hooks.postswitch)
(mapAttrs' (hookToFile "preswitch.d") cfg.hooks.preswitch)
(mapAttrs' (hookToFile "predetect.d") cfg.hooks.predetect)
(mkMerge (mapAttrsToList profileToFiles cfg.profiles))
]);
};
meta.maintainers = [ maintainers.uvnikita ];
}