#!/usr/bin/env bash
# SPDX-License-Identifier: AGPL-3.0-only
set -euo pipefail
root=$(CDPATH= cd -- "$(dirname -- "$0")/.." && pwd)
allow=$root/scripts/public-snapshot.allow
LC_ALL=C sort -c "$allow"
[[ $(LC_ALL=C sort "$allow" | uniq -d | wc -l) -eq 0 ]]
mapfile -t files <"$allow"
[[ ${#files[@]} -gt 0 ]]
for file in "${files[@]}"; do
	[[ -n $file && $file != /* && $file != *..* && $file != .gitea/* && $file != .github/* ]]
	git -C "$root" cat-file -e "HEAD:$file"
done
work=$(mktemp -d)
trap 'rm -rf -- "$work"' EXIT
mkdir -m 0700 "$work/tree"
git -C "$root" archive HEAD -- "${files[@]}" | tar -xf - -C "$work/tree"
test ! -e "$work/tree/.git"
test ! -e "$work/tree/.gitea"
test ! -e "$work/tree/.github"
private_pattern='/home/[[:alnum:]_.-]+/|BEGIN (RSA|OPENSSH|EC) PRIVATE KEY|gitea[-_]api[[:alnum:]_.-]*token'
if (cd "$work/tree" && rg -n --hidden --glob '!scripts/export-public.sh' --glob '!scripts/check-public-tree.sh' "$private_pattern" .); then
	echo "private material found in public tree" >&2
	exit 1
fi
(cd "$work/tree" && ./scripts/check-licenses.sh)
(cd "$work/tree" && GOWORK=off go test -count=1 ./...)
(cd "$work/tree" && GOWORK=off go vet ./...)
(cd "$work/tree" && GOWORK=off CGO_ENABLED=0 go build -buildvcs=false -mod=readonly -trimpath -o "$work/tend" ./cmd/tend)
echo "public tree compiles independently"