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

52 lines
1.2 KiB
Bash
Raw Normal View History

#!/usr/bin/env bash
set -eu -o pipefail
set -x
source common.sh
# Avoid store dir being inside sandbox build-dir
unset NIX_STORE_DIR
unset NIX_STATE_DIR
storeDirs
initLowerStore
mountOverlayfs
# Create a file to add to store
dupFilePath="$TEST_ROOT/dup-file"
echo Duplicate > "$dupFilePath"
# Add it to the overlay store (it will be written to the upper layer)
dupFileStorePath=$(nix-store --store "$storeB" --add "$dupFilePath")
# Now add it to the lower store so the store path is duplicated
nix-store --store "$storeA" --add "$dupFilePath"
# Ensure overlayfs and layers and synchronised
remountOverlayfs
dupFilename="${dupFileStorePath#/nix/store}"
lowerPath="$storeA/$dupFileStorePath"
upperPath="$storeBTop/$dupFilename"
overlayPath="$storeBRoot/nix/store/$dupFilename"
# Check store path exists in both layers and overlay
lowerInode=$(stat -c %i "$lowerPath")
upperInode=$(stat -c %i "$upperPath")
overlayInode=$(stat -c %i "$overlayPath")
[[ $upperInode == $overlayInode ]]
[[ $upperInode != $lowerInode ]]
# Run optimise to deduplicate store paths
nix-store --store "$storeB" --optimise
remountOverlayfs
2023-07-19 14:32:32 +03:00
# Check path only exists in lower store
stat "$lowerPath"
stat "$overlayPath"
expect 1 stat "$upperPath"