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[Unit]
Description=Home assistant update
After=network.target

[Service]
User=hass
Group=hass
LogsDirectory=hass
StateDirectory=hass hass-installation
CacheDirectory=hass
Environment=CARGO_HOME=%C/hass/cargo
Environment=PYTHON_EGG_CACHE=%C/hass/python-eggs
Environment=VIRTUAL_ENV=%S/hass-installation
WorkingDirectory=~

EnvironmentFile=-/etc/hass.env

Type=oneshot
# install or upgrade the python venv, we want
ExecStart=python -m venv --system-site-packages --upgrade "${VIRTUAL_ENV}"

# upgrade home assistant and all its necessary libs
ExecStart=%S/hass-installation/bin/pip install --no-warn-script-location --upgrade homeassistant
ExecStart=sh -c '\
		find \
				$(%S/hass-installation/bin/python -c "import os.path as path; import site; print(path.dirname(path.dirname(site.getsitepackages()[0])))") -mindepth 1 -type d \
				-path $(%S/hass-installation/bin/python -c "import os.path as path; import site; print(path.basename(path.dirname(path.relpath(site.getsitepackages()[0],'${VIRTUAL_ENV}/lib'))))") -prune \
				-print0 \
		| xargs --no-run-if-empty -0 rm --verbose --recursive'


LockPersonality=true
RestrictRealtime=true
RestrictSUIDSGID=true
ProtectControlGroups=true
ProtectKernelModules=true
ProtectKernelTunables=true
PrivateMounts=true
PrivateTmp=true
ProtectSystem=full
PrivateDevices=true

[Install]
WantedBy=multi-user.target