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files: additional support for symlinked /nix

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In the case where `/nix` is a link, for example, on macOS Catalina,
`builtins.storeDir` returns `/nix`, not the canonical location.

This causes tests on existing files to result in Home Manager thinking
those files are outside of the store.

This change uses `readlink` on the store path so that the tests work
as intended.
This commit is contained in:
Philip Stears 2019-11-25 09:54:27 +00:00 committed by Robert Helgesson
parent 9781f3766d
commit 0e9b7aab3c
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GPG key ID: 36BDAA14C2797E89
1 changed files with 10 additions and 6 deletions
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16
modules/files.nix
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@ -23,10 +23,6 @@ let
then file.source
else builtins.path { path = file.source; name = sourceName; };
# A symbolic link whose target path matches this pattern will be
# considered part of a Home Manager generation.
homeFilePattern = "${builtins.storeDir}/*-home-manager-files/*";
in
{
@ -52,13 +48,17 @@ in
check = pkgs.writeText "check" ''
. ${./lib-bash/color-echo.sh}
# A symbolic link whose target path matches this pattern will be
# considered part of a Home Manager generation.
homeFilePattern="$(readlink -e "${builtins.storeDir}")/*-home-manager-files/*"
newGenFiles="$1"
shift
for sourcePath in "$@" ; do
relativePath="''${sourcePath#$newGenFiles/}"
targetPath="$HOME/$relativePath"
if [[ -e "$targetPath" \
&& ! "$(readlink "$targetPath")" == ${homeFilePattern} ]] ; then
&& ! "$(readlink "$targetPath")" == $homeFilePattern ]] ; then
if [[ ! -L "$targetPath" && -n "$HOME_MANAGER_BACKUP_EXT" ]] ; then
backup="$targetPath.$HOME_MANAGER_BACKUP_EXT"
if [[ -e "$backup" ]]; then
@ -133,13 +133,17 @@ in
cleanup = pkgs.writeText "cleanup" ''
. ${./lib-bash/color-echo.sh}
# A symbolic link whose target path matches this pattern will be
# considered part of a Home Manager generation.
homeFilePattern="$(readlink -e "${builtins.storeDir}")/*-home-manager-files/*"
newGenFiles="$1"
shift 1
for relativePath in "$@" ; do
targetPath="$HOME/$relativePath"
if [[ -e "$newGenFiles/$relativePath" ]] ; then
$VERBOSE_ECHO "Checking $targetPath: exists"
elif [[ ! "$(readlink "$targetPath")" == ${homeFilePattern} ]] ; then
elif [[ ! "$(readlink "$targetPath")" == $homeFilePattern ]] ; then
warnEcho "Path '$targetPath' not link into Home Manager generation. Skipping delete."
else
$VERBOSE_ECHO "Checking $targetPath: gone (deleting)"