nix-super/tests/local-overlay-store/gc-inner.sh

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#!/usr/bin/env bash
set -eu -o pipefail
source common.sh
# Avoid store dir being inside sandbox build-dir
unset NIX_STORE_DIR
unset NIX_STATE_DIR
storeDirs
initLowerStore
mountOverlayfs
export NIX_REMOTE="$storeB"
stateB="$storeBRoot/nix/var/nix"
outPath=$(nix-build ../hermetic.nix --no-out-link --arg busybox "$busybox" --arg seed 2)
# Set a GC root.
mkdir -p "$stateB"
rm -f "$stateB"/gcroots/foo
ln -sf $outPath "$stateB"/gcroots/foo
[ "$(nix-store -q --roots $outPath)" = "$stateB/gcroots/foo -> $outPath" ]
nix-store --gc --print-roots | grep $outPath
nix-store --gc --print-live | grep $outPath
if nix-store --gc --print-dead | grep -E $outPath$; then false; fi
nix-store --gc --print-dead
expect 1 nix-store --delete $outPath
test -e "$storeBRoot/$outPath"
shopt -s nullglob
for i in $storeBRoot/*; do
if [[ $i =~ /trash ]]; then continue; fi # compat with old daemon
touch $i.lock
touch $i.chroot
done
nix-collect-garbage
# Check that the root and its dependencies haven't been deleted.
cat "$storeBRoot/$outPath"
rm "$stateB"/gcroots/foo
nix-collect-garbage
# Check that the output has been GC'd.
test ! -e $outPath
# Check that the store is empty.
[ "$(ls -1 "$storeBTop" | wc -l)" = "0" ]