1bc59f7290
This is a NixOS module that is intended to be imported into a NixOS system configuration. It allows the system users to be set up directly from the system configuration. The actual profile switch is performed by a oneshot systemd unit per configured user that acts much like the regular `home-manager switch` command. With this implementation, the NixOS module does not work properly with the `nixos-rebuild build-vm` command. This can be solved by using the `users.users.<name?>.packages` option to install packages but this does not work flawlessly with certain Nixpkgs packages. In particular, for programs using the Qt libraries.
115 lines
2.7 KiB
Bash
115 lines
2.7 KiB
Bash
#!/usr/bin/env bash
|
|
|
|
function isStartable() {
|
|
local service="$1"
|
|
[[ $(systemctl --user show -p RefuseManualStart "$service") == *=no ]]
|
|
}
|
|
|
|
function isStoppable() {
|
|
if [[ -v oldGenPath ]] ; then
|
|
local service="$1"
|
|
[[ $(systemctl --user show -p RefuseManualStop "$service") == *=no ]]
|
|
fi
|
|
}
|
|
|
|
function systemdPostReload() {
|
|
local workDir
|
|
workDir="$(mktemp -d)"
|
|
|
|
if [[ -v oldGenPath ]] ; then
|
|
local oldUserServicePath="$oldGenPath/home-files/.config/systemd/user"
|
|
fi
|
|
|
|
local newUserServicePath="$newGenPath/home-files/.config/systemd/user"
|
|
local oldServiceFiles="$workDir/old-files"
|
|
local newServiceFiles="$workDir/new-files"
|
|
local servicesDiffFile="$workDir/diff-files"
|
|
|
|
if [[ ! (-v oldUserServicePath && -d "$oldUserServicePath") \
|
|
&& ! -d "$newUserServicePath" ]]; then
|
|
return
|
|
fi
|
|
|
|
if [[ ! (-v oldUserServicePath && -d "$oldUserServicePath") ]]; then
|
|
touch "$oldServiceFiles"
|
|
else
|
|
find "$oldUserServicePath" \
|
|
-maxdepth 1 -name '*.service' -exec basename '{}' ';' \
|
|
| sort \
|
|
> "$oldServiceFiles"
|
|
fi
|
|
|
|
if [[ ! -d "$newUserServicePath" ]]; then
|
|
touch "$newServiceFiles"
|
|
else
|
|
find "$newUserServicePath" \
|
|
-maxdepth 1 -name '*.service' -exec basename '{}' ';' \
|
|
| sort \
|
|
> "$newServiceFiles"
|
|
fi
|
|
|
|
diff \
|
|
--new-line-format='+%L' \
|
|
--old-line-format='-%L' \
|
|
--unchanged-line-format=' %L' \
|
|
"$oldServiceFiles" "$newServiceFiles" \
|
|
> "$servicesDiffFile" || true
|
|
|
|
local -a maybeRestart=( $(grep '^ ' "$servicesDiffFile" | cut -c2-) )
|
|
local -a maybeStop=( $(grep '^-' "$servicesDiffFile" | cut -c2-) )
|
|
local -a maybeStart=( $(grep '^+' "$servicesDiffFile" | cut -c2-) )
|
|
local -a toRestart=( )
|
|
local -a toStop=( )
|
|
local -a toStart=( )
|
|
|
|
for f in "${maybeRestart[@]}" ; do
|
|
if isStoppable "$f" \
|
|
&& isStartable "$f" \
|
|
&& systemctl --quiet --user is-active "$f" \
|
|
&& ! cmp --quiet \
|
|
"$oldUserServicePath/$f" \
|
|
"$newUserServicePath/$f" ; then
|
|
toRestart+=("$f")
|
|
fi
|
|
done
|
|
|
|
for f in "${maybeStop[@]}" ; do
|
|
if isStoppable "$f" ; then
|
|
toStop+=("$f")
|
|
fi
|
|
done
|
|
|
|
for f in "${maybeStart[@]}" ; do
|
|
if isStartable "$f" ; then
|
|
toStart+=("$f")
|
|
fi
|
|
done
|
|
|
|
rm -r "$workDir"
|
|
|
|
local sugg=""
|
|
|
|
if [[ -n "${toRestart[@]}" ]] ; then
|
|
sugg="${sugg}systemctl --user restart ${toRestart[@]}\n"
|
|
fi
|
|
|
|
if [[ -n "${toStop[@]}" ]] ; then
|
|
sugg="${sugg}systemctl --user stop ${toStop[@]}\n"
|
|
fi
|
|
|
|
if [[ -n "${toStart[@]}" ]] ; then
|
|
sugg="${sugg}systemctl --user start ${toStart[@]}\n"
|
|
fi
|
|
|
|
if [[ -n "$sugg" ]] ; then
|
|
echo "Suggested commands:"
|
|
echo -n -e "$sugg"
|
|
fi
|
|
}
|
|
|
|
oldGenPath="$1"
|
|
newGenPath="$2"
|
|
|
|
$DRY_RUN_CMD systemctl --user daemon-reload
|
|
systemdPostReload
|