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home-assistant: Inject extra dependencies through PYTHONPATH

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Injecting configuration specific dependencies into the
propagatedBuildInputs of the home-assistant package forces alot of
rebuilds while setting up home-assistant, which is annoying.

By passing optional dependencies into home-assistant via the systemd
units PYTHONPATH environment variable, only he concatenation of
library paths in the systemd unit requires a rebuild.

This also means users can rely heavily on the cached home-assistant
package and will rarely have to build from source, if ever.
This commit is contained in:
Martin Weinelt 2023-02-20 16:54:37 +01:00
parent 3fa7dc206a
commit e01ccd6245
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GPG Key ID: 87C1E9888F856759
2 changed files with 3 additions and 1 deletions
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1
nixos/modules/services/home-automation/home-assistant.nix
View File

@ -409,6 +409,7 @@ in {
(optionalString (cfg.config != null) copyConfig) +
(optionalString (cfg.lovelaceConfig != null) copyLovelaceConfig)
;
environment.PYTHONPATH = package.pythonPath;
serviceConfig = let
# List of capabilities to equip home-assistant with, depending on configured components
capabilities = lib.unique ([

3
pkgs/servers/home-assistant/default.nix
View File

@ -355,7 +355,7 @@ in python.pkgs.buildPythonApplication rec {
yarl
# Implicit dependency via homeassistant/requirements.py
setuptools
] ++ componentBuildInputs ++ extraBuildInputs;
];
makeWrapperArgs = lib.optional skipPip "--add-flags --skip-pip";
@ -431,6 +431,7 @@ in python.pkgs.buildPythonApplication rec {
getPackages
python
supportedComponentsWithTests;
pythonPath = python3.pkgs.makePythonPath (componentBuildInputs ++ extraBuildInputs);
intents = python.pkgs.home-assistant-intents;
tests = {
nixos = nixosTests.home-assistant;