magic-nix-cache-action/.github/workflows/cache-test.sh
2024-03-06 18:10:54 -03:00

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#! /usr/bin/env bash
set -e
set -ux
seed=$(date)
log="${MAGIC_NIX_CACHE_DAEMONDIR}/daemon.log"
binary_cache=https://cache.flakehub.com
# Check that the action initialized correctly.
grep 'FlakeHub cache is enabled' "${log}"
grep 'Using cache' "${log}"
grep 'GitHub Action cache is enabled' "${log}"
# Build something.
outpath=$(nix-build .github/workflows/cache-tester.nix --argstr seed "$seed")
# Check that the path was enqueued to be pushed to the cache.
grep "Enqueueing.*${outpath}" "${log}"
# Wait until it has been pushed succesfully.
found=
for ((i = 0; i < 60; i++)); do
sleep 1
if grep "$(basename "${outpath}")" "${log}"; then
found=1
break
fi
done
if [[ -z $found ]]; then
echo "FlakeHub push did not happen." >&2
exit 1
fi
# Check the FlakeHub binary cache to see if the path is really there.
nix path-info --store "${binary_cache}" "${outpath}"
# FIXME: remove this once the daemon also uploads to GHA automatically.
nix copy --to 'http://127.0.0.1:37515' "${outpath}"
rm ./result
nix store delete "${outpath}"
if [ -f "$outpath" ]; then
echo "$outpath still exists? can't test"
exit 1
fi
rm -rf ~/.cache/nix
echo "-------"
echo "Trying to substitute the build again..."
echo "if it fails, the cache is broken."
nix-store --realize -vvvvvvvv "$outpath"