mirror of
https://github.com/privatevoid-net/nix-super.git
synced 2024-11-28 16:46:16 +02:00
acbb1523c1
https://github.com/NixOS/nix/pull/10456 fixed the addition of symlink store paths to the sandbox, but also made it so that the hardcoded sandbox paths (like `/etc/hosts`) were now bind-mounted without following the possible symlinks. This made these files unreadable if there were symlinks (because the sandbox would now contain a symlink to an unreachable file rather than the underlying file). In particular, this broke FOD derivations on NixOS as `/etc/hosts` is a symlink there. Fix that by canonicalizing all these hardcoded sandbox paths before adding them to the sandbox.
59 lines
1.5 KiB
Nix
59 lines
1.5 KiB
Nix
with import ./config.nix;
|
|
|
|
let
|
|
foo_in_store = builtins.toFile "foo" "foo";
|
|
foo_symlink = mkDerivation {
|
|
name = "foo-symlink";
|
|
buildCommand = ''
|
|
ln -s ${foo_in_store} $out
|
|
'';
|
|
};
|
|
symlink_to_not_in_store = mkDerivation {
|
|
name = "symlink-to-not-in-store";
|
|
buildCommand = ''
|
|
ln -s ${builtins.toString ./.} $out
|
|
'';
|
|
};
|
|
in
|
|
{
|
|
depends_on_symlink = mkDerivation {
|
|
name = "depends-on-symlink";
|
|
buildCommand = ''
|
|
(
|
|
set -x
|
|
|
|
# `foo_symlink` should be a symlink pointing to `foo_in_store`
|
|
[[ -L ${foo_symlink} ]]
|
|
[[ $(readlink ${foo_symlink}) == ${foo_in_store} ]]
|
|
|
|
# `symlink_to_not_in_store` should be a symlink pointing to `./.`, which
|
|
# is not available in the sandbox
|
|
[[ -L ${symlink_to_not_in_store} ]]
|
|
[[ $(readlink ${symlink_to_not_in_store}) == ${builtins.toString ./.} ]]
|
|
(! ls ${symlink_to_not_in_store}/)
|
|
|
|
# Native paths
|
|
)
|
|
echo "Success!" > $out
|
|
'';
|
|
};
|
|
|
|
test_sandbox_paths = mkDerivation {
|
|
# Depends on the caller to set a bunch of `--sandbox-path` arguments
|
|
name = "test-sandbox-paths";
|
|
buildCommand = ''
|
|
(
|
|
set -x
|
|
[[ -f /file ]]
|
|
[[ -d /dir ]]
|
|
|
|
# /symlink and /symlinkDir should be available as raw symlinks
|
|
# (pointing to files outside of the sandbox)
|
|
[[ -L /symlink ]] && [[ ! -e $(readlink /symlink) ]]
|
|
[[ -L /symlinkDir ]] && [[ ! -e $(readlink /symlinkDir) ]]
|
|
)
|
|
|
|
touch $out
|
|
'';
|
|
};
|
|
}
|