Use a generation directory
Before we put only user files in the generation directory but that was quite limiting. In particular, we lost track of the activation script.
This commit is contained in:
Robert Helgesson
parent
671805009c
commit
43fd747ba7
|
|
@ -17,16 +17,18 @@ function doRebuild() {
|
|||
--argstr modulesPath "$HOME/.nixpkgs/home-manager/modules" \
|
||||
--argstr confPath "$confFile" \
|
||||
-A activation-script \
|
||||
-o "$wrkdir/activate"
|
||||
-o "$wrkdir/generation"
|
||||
|
||||
"$wrkdir/activate/libexec/home-activate"
|
||||
"$wrkdir/generation/activate"
|
||||
|
||||
rm -rv "$wrkdir"
|
||||
rm -r "$wrkdir"
|
||||
}
|
||||
|
||||
function doListGens() {
|
||||
ls --color=yes -gG --sort time "/nix/var/nix/gcroots/per-user/$(whoami)" \
|
||||
pushd "/nix/var/nix/profiles/per-user/$USER" > /dev/null
|
||||
ls --color=yes -gG --sort time home-manager-*-link \
|
||||
| cut -d' ' -f 4-
|
||||
popd > /dev/null
|
||||
}
|
||||
|
||||
function doListPackages() {
|
||||
|
|
|
|||
|
|
@ -193,34 +193,26 @@ in
|
|||
|
||||
home.activation.linkages =
|
||||
let
|
||||
pak = pkgs.stdenv.mkDerivation {
|
||||
name = "home-environment";
|
||||
|
||||
phases = [ "installPhase" ];
|
||||
|
||||
installPhase =
|
||||
concatStringsSep "\n" (
|
||||
mapAttrsToList (name: value:
|
||||
"install -v -D -m${value.mode} ${value.source} $out/${value.target}"
|
||||
) cfg.file
|
||||
);
|
||||
};
|
||||
|
||||
link = pkgs.writeText "link" ''
|
||||
newGenFiles="$1"
|
||||
shift
|
||||
for sourcePath in "$@" ; do
|
||||
basePath="''${sourcePath#/nix/store/*-home-environment/}"
|
||||
targetPath="$HOME/$basePath"
|
||||
relativePath="$(realpath --relative-to "$newGenFiles" "$sourcePath")"
|
||||
targetPath="$HOME/$relativePath"
|
||||
mkdir -vp "$(dirname "$targetPath")"
|
||||
ln -vsf "$sourcePath" "$targetPath"
|
||||
done
|
||||
'';
|
||||
|
||||
cleanup = pkgs.writeText "cleanup" ''
|
||||
newGenFiles="$1"
|
||||
oldGenFiles="$2"
|
||||
shift 2
|
||||
for sourcePath in "$@" ; do
|
||||
basePath="''${sourcePath#/nix/store/*-home-environment/}"
|
||||
targetPath="$HOME/$basePath"
|
||||
relativePath="$(realpath --relative-to "$oldGenFiles" "$sourcePath")"
|
||||
targetPath="$HOME/$relativePath"
|
||||
echo -n "Checking $targetPath"
|
||||
if [[ -f "${pak}/$basePath" ]] ; then
|
||||
if [[ -f "$newGenFiles/$relativePath" ]] ; then
|
||||
echo " exists"
|
||||
else
|
||||
echo " gone (deleting)"
|
||||
|
|
@ -232,34 +224,67 @@ in
|
|||
in
|
||||
''
|
||||
function setupVars() {
|
||||
local profilesPath="/nix/var/nix/profiles/per-user/$(whoami)"
|
||||
local gcPath="/nix/var/nix/gcroots/per-user/$(whoami)"
|
||||
local greatestGenNum=( \
|
||||
$(find "$gcPath" -name 'home-*' \
|
||||
| sed 's/^.*-\([0-9]*\)$/\1/' \
|
||||
$(find "$profilesPath" -name 'home-manager-*-link' \
|
||||
| sed 's/^.*-\([0-9]*\)-link$/\1/' \
|
||||
| sort -rn \
|
||||
| head -1) \
|
||||
)
|
||||
|
||||
if [[ -n "$greatestGenNum" ]] ; then
|
||||
oldGenNum=$greatestGenNum
|
||||
newGenNum=$(($oldGenNum + 1))
|
||||
oldGenPath="$(readlink -e "$gcPath/home-$oldGenNum")"
|
||||
else
|
||||
newGenNum=1
|
||||
fi
|
||||
newGenPath="${pak}";
|
||||
newGenGcPath="$gcPath/home-$newGenNum"
|
||||
|
||||
if [[ -e "$gcPath/current-home" ]] ; then
|
||||
oldGenPath="$(readlink -e "$gcPath/current-home")"
|
||||
fi
|
||||
|
||||
newGenPath="@GENERATION_DIR@";
|
||||
newGenProfilePath="$profilesPath/home-manager-$newGenNum-link"
|
||||
newGenGcPath="$gcPath/current-home"
|
||||
}
|
||||
|
||||
# Set some vars, these can be used later on as well.
|
||||
setupVars
|
||||
|
||||
if [[ "$oldGenPath" != "$newGenPath" ]] ; then
|
||||
ln -sfv "$newGenPath" "$newGenGcPath"
|
||||
find "$newGenPath" -type f -print0 | xargs -0 bash ${link}
|
||||
if [[ -n "$oldGenPath" ]] ; then
|
||||
echo "Cleaning up orphan links from $HOME"
|
||||
find "$oldGenPath" -type f -print0 | xargs -0 bash ${cleanup}
|
||||
echo oldGenNum=$oldGenNum
|
||||
echo newGenNum=$newGenNum
|
||||
echo oldGenPath=$oldGenPath
|
||||
echo newGenPath=$newGenPath
|
||||
echo newGenProfilePath=$newGenProfilePath
|
||||
echo newGenGcPath=$newGenGcPath
|
||||
|
||||
function linkNewGen() {
|
||||
local newGenFiles
|
||||
newGenFiles="$(readlink -e "$newGenPath/home-files")"
|
||||
find "$newGenFiles" -type f -print0 \
|
||||
| xargs -0 bash ${link} "$newGenFiles"
|
||||
}
|
||||
|
||||
function cleanOldGen() {
|
||||
if [[ -z "$oldGenPath" ]] ; then
|
||||
return
|
||||
fi
|
||||
|
||||
echo "Cleaning up orphan links from $HOME"
|
||||
|
||||
local newGenFiles oldGenFiles
|
||||
newGenFiles="$(readlink -e "$newGenPath/home-files")"
|
||||
oldGenFiles="$(readlink -e "$oldGenPath/home-files")"
|
||||
find "$oldGenFiles" -type f -print0 \
|
||||
| xargs -0 bash ${cleanup} "$newGenFiles" "$oldGenFiles"
|
||||
}
|
||||
|
||||
if [[ "$oldGenPath" != "$newGenPath" ]] ; then
|
||||
ln -Tsfv "$newGenPath" "$newGenProfilePath"
|
||||
ln -Tsfv "$newGenPath" "$newGenGcPath"
|
||||
linkNewGen
|
||||
cleanOldGen
|
||||
else
|
||||
echo "Same home files as previous generation ... doing nothing"
|
||||
fi
|
||||
|
|
@ -290,14 +315,32 @@ in
|
|||
|
||||
${activationCmds}
|
||||
'';
|
||||
|
||||
home-files = pkgs.stdenv.mkDerivation {
|
||||
name = "home-manager-files";
|
||||
|
||||
phases = [ "installPhase" ];
|
||||
|
||||
installPhase =
|
||||
concatStringsSep "\n" (
|
||||
mapAttrsToList (name: value:
|
||||
"install -v -D -m${value.mode} ${value.source} $out/${value.target}"
|
||||
) cfg.file
|
||||
);
|
||||
};
|
||||
in
|
||||
pkgs.stdenv.mkDerivation {
|
||||
name = "activate-home";
|
||||
name = "home-manager-generation";
|
||||
|
||||
phases = [ "installPhase" ];
|
||||
|
||||
installPhase = ''
|
||||
install -v -D -m755 ${sf} $out/libexec/home-activate
|
||||
install -v -D -m755 ${sf} $out/activate
|
||||
|
||||
substituteInPlace $out/activate \
|
||||
--subst-var-by GENERATION_DIR $out
|
||||
|
||||
ln -vs ${home-files} $out/home-files
|
||||
'';
|
||||
};
|
||||
|
||||
|
|
|
|||
|
|
@ -64,13 +64,15 @@ in
|
|||
home.activation.reloadSystemD = stringAfter ["linkages"] ''
|
||||
function systemdPostReload() {
|
||||
local servicesDiffFile="$(mktemp)"
|
||||
local oldUserServicePath="$oldGenPath/home-files/.config/systemd/user"
|
||||
local newUserServicePath="$newGenPath/home-files/.config/systemd/user"
|
||||
|
||||
diff \
|
||||
--new-line-format='+%L' \
|
||||
--old-line-format='-%L' \
|
||||
--unchanged-line-format=' %L' \
|
||||
<(basename -a $(echo "$oldGenPath/.config/systemd/user/*.service") | sort) \
|
||||
<(basename -a $(echo "$newGenPath/.config/systemd/user/*.service") | sort) \
|
||||
<(basename -a $(echo "$oldUserServicePath/*.service") | sort) \
|
||||
<(basename -a $(echo "$newUserServicePath/*.service") | sort) \
|
||||
> $servicesDiffFile
|
||||
|
||||
local -a maybeRestart=( $(grep '^ ' $servicesDiffFile | cut -c2-) )
|
||||
|
|
@ -81,8 +83,8 @@ in
|
|||
for f in ''${maybeRestart[@]} ; do
|
||||
if systemctl --quiet --user is-active "$f" \
|
||||
&& ! cmp --quiet \
|
||||
"$oldGenPath/.config/systemd/user/$f" \
|
||||
"$newGenPath/.config/systemd/user/$f" ; then
|
||||
"$oldUserServicePath/$f" \
|
||||
"$newUserServicePath/$f" ; then
|
||||
echo "Adding '$f' to restart list";
|
||||
toRestart+=("$f")
|
||||
fi
|
||||
|
|
@ -90,7 +92,7 @@ in
|
|||
|
||||
rm $servicesDiffFile
|
||||
|
||||
sugg=""
|
||||
local sugg=""
|
||||
|
||||
if [[ -n "''${toRestart[@]}" ]] ; then
|
||||
sugg="$sugg\nsystemctl --user restart ''${toRestart[@]}"
|
||||
|
|
@ -110,10 +112,8 @@ in
|
|||
fi
|
||||
}
|
||||
|
||||
if [[ "$oldGenPath" != "$newGenPath" ]] ; then
|
||||
systemctl --user daemon-reload
|
||||
systemdPostReload
|
||||
fi
|
||||
systemctl --user daemon-reload
|
||||
systemdPostReload
|
||||
'';
|
||||
};
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue