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home-environment: fail if a home.file is outside $HOME

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(cherry picked from commit 6ecf9e091c)
This commit is contained in:
Robert Helgesson
2017-09-13 15:19:49 +02:00
parent c2ab3bc95c
commit 3c6453b32d
1 changed files with 10 additions and 2 deletions
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12
modules/home-environment.nix
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@@ -416,11 +416,19 @@ in
concatStringsSep "\n" (
mapAttrsToList (n: v:
''
target="$(realpath -m "$out/${v.target}")"
# Target file must be within $HOME.
if [[ ! "$target" =~ "$out" ]] ; then
echo "Error installing file '${v.target}' outside \$HOME" >&2
exit 1
fi
if [ -d "${v.source}" ]; then
mkdir -pv "$(dirname "$out/${v.target}")"
ln -sv "${v.source}" "$out/${v.target}"
ln -sv "${v.source}" "$target"
else
install -D -m${v.mode} "${v.source}" "$out/${v.target}"
install -D -m${v.mode} "${v.source}" "$target"
fi
''
) cfg.file