a pre-push git hook that runs smoke tests and memoizes the results in git

pre-push.sh

#!/bin/sh
set -e
imgs="registry.access.redhat.com/ubi8/ubi:8.0-122 docker.io/library/ubuntu docker.io/mitmproxy/mitmproxy:4.0.1"
pod='claircore-dev'
pause=20
export GIT_NOTES_REF=refs/notes/pre-push

cleanup() {
	exe="$1"
	out="$2"
	ct="$3"
	w="$4"
	test -f "$out" && {
		git notes add -F "$out"
		rm "$out"
	}
	rm -f "$exe"
	printf "pausing pod\n"
	podman pod pause "${pod}" >/dev/null
	kill "$w"
}

remote="$1"
if [ "$remote" = origin ] || [ -z "$remote" ]; then
	if git notes list HEAD >/dev/null 2>&1; then
		printf '# cached run:\n'
		git --no-pager notes show
		exit 0
	fi

	out="$(mktemp)"
	exe="$(mktemp)"
	ct="$(mktemp)"
	trap 'test "$?" -ne 0 && rm "$out"; cleanup "$exe" "$out" "$ct" "$w"' EXIT
	tail -f "$out" &
	w="$!"
	exec >"$out"

	if podman pod ps -qf "name=$pod" | grep -q .; then
		go mod vendor
		podman pod unpause "$pod" >/dev/null
		for name in libindexhttp libvulnhttp; do
			if podman ps -qf "name=${name}" >/dev/null 2>&1; then
				printf 'restarting %s\n' "$name"
				podman restart "${name}">/dev/null
			else
				printf '%s not running???\n' "$name"
				exit 1
			fi
		done
	else
		printf 'spinning up testing pod\n'
		pause=60
		make podman-dev-up
	fi
	printf 'feeling sleepy (%d sec)\n' "$pause"
	sleep "$pause"
	printf 'running integration tests\n'
	go test -tags integration ./...
	printf 'attempting to run "cctool report" against images:\n'
	for i in $imgs; do printf '\t%s\n' "$i"; done
	go build -o "$exe" ./cmd/cctool
	for i in $imgs; do 
		"$exe" report "$i" | tee "$ct"
		test "$(wc -l < "$ct")" -gt 1
	done
fi