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programs/gnome-session: update comments

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Gabriel Arazas 2024-01-03 11:53:14 +08:00
parent f592c5b8ef
commit 67b3c96869
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1 changed files with 57 additions and 6 deletions
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63
modules/nixos/programs/gnome-session/default.nix
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@ -68,6 +68,11 @@ let
This has the same options as {option}`systemd.user.services.<name>`
but without certain options from stage 2 counterparts such as
`reloadTriggers` and `restartTriggers`.
On a typical case, you shouldn't mess with much of the dependency
ordering of the service unit. By default, this module sets the
service unit as part of the respective target unit (i.e.,
`PartOf=$COMPONENTID.target`).
:::
'';
default = {};
@ -91,6 +96,9 @@ let
This has the same options as {option}`systemd.user.targets.<name>`
but without certain options from stage 2 counterparts such as
`reloadTriggers` and `restartTriggers`.
This module doesn't set the typical dependency ordering relative to
gnome-session targets. This is on the user to manually set them.
:::
'';
default = {};
@ -121,7 +129,7 @@ let
readOnly = true;
description = ''
A package containing the desktop item set with
{option}`desktopSessions.gnome-session.sessions.<name>.components.<name>.desktopConfig`.
{option}`$SESSION.components.<name>.desktopConfig`.
'';
};
};
@ -129,7 +137,8 @@ let
config = {
id = "${session.name}.${name}";
# Make with the default configurations.
# Make with the default configurations for the built-in-managed
# components.
desktopConfig = {
name = lib.mkForce config.id;
desktopName = lib.mkDefault "${session.fullName} - ${config.description}";
@ -144,14 +153,41 @@ let
};
};
# Setting some recommendation and requirements for systemd-managed
# gnome-session components.
/*
Setting some recommendation and requirements for systemd-managed
gnome-session components. Note there are the missing directives that
COULD include some sane defaults here.
* The `Unit.OnFailure=` and `Unit.OnFailureJobMode=` directives. Since
different components don't have the same priority and don't handle
failures the same way, we didn't set it here. This is on the user to
know how different desktop components interact with each other
especially if one of them failed.
TODO: Is `Type=notify` a good default?
* `Service.Type=` is obviously not included since not all desktop
components are the same either. Some of them could a D-Bus service,
some of them are oneshots, etc. Not to mention, this is already implied
to be `Type=simple` by systemd anyways.
* `Service.OOMScoreAdjust=` have different values for different
components so it isn't included.
As you can tell, this module does not provide a framework for the user
to easily compose their own desktop environment. THIS MODULE ALREADY
DOES A LOT, ALRIGHT! CUT ME SOME SLACK!
*/
serviceConfig = {
script = lib.mkAfter "${config.scriptPackage}/bin/${session.name}-${name}-script";
description = lib.mkDefault config.description;
# The typical workflow for service units to have them set as part of
# the respective target unit.
requisite = [ "${config.id}.target" ];
before = [ "${config.id}.target" ];
partOf = [ "${config.id}.target" ];
# Some sane service configuration for a desktop component.
serviceConfig = {
Slice = lib.mkDefault "session.slice";
Restart = lib.mkDefault "on-failure";
@ -170,6 +206,16 @@ let
};
};
/*
Similarly, there are things that COULD make it here but didn't for a
variety of reasons.
* `Unit.PartOf=`, `Unit.Requisite=`, and the like since some components
require starting up earlier than the others. We could include it here
if we make it clear in the documentation or if it proves to be a
painful experience to configure this by a first-timer. For now, this is
on the user to know.
*/
targetConfig = {
wants = [ "${config.id}.service" ];
description = lib.mkDefault config.description;
@ -369,6 +415,7 @@ let
Comment=${config.description}
Exec=@out@/libexec/${name}-session
Type=Application
DesktopNames=${config.fullName};
'';
sessionScript = ''
@ -451,14 +498,18 @@ in
Each of the attribute name will be used as the identifier of the
desktop environment. While you can make identifiers in any way, it is
encouraged to follow a reverse DNS-like scheme (e.g.,
`com.example.MoseyBranch`).
encouraged to stick to a naming scheme. Here's two common ways to name
a desktop environment.
* Reverse DNS-like scheme (e.g., `com.example.MoseyBranch`).
* Kebab-case (e.g., `mosey-branch`).
'';
default = { };
example = lib.literalExpression ''
{
"one.foodogsquared.SimpleWay" = {
components = {
# This unit is intended to start with gnome-session.
window-manager = {
script = '''
''${lib.getExe' config.programs.sway.package "sway"}