License dedicated server packaging under GPLv3

scripts/stage-build.sh

@@ -11,6 +11,7 @@ game_version="$2"
 game_commit="${3,,}"
 repository_dir="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")/.." && pwd)"
 destination_dir="${repository_dir}/dist"
+licenses_dir="${destination_dir}/licenses"
 
 if [[ ! "${game_version}" =~ ^[A-Za-z0-9][A-Za-z0-9._-]*$ ]]; then
 	echo "GAME_VERSION must contain only letters, numbers, dots, underscores, or hyphens." >&2
@@ -32,6 +33,18 @@ install -m 0755 "${source_dir}/NETfishingServer.x86_64" \
 	"${destination_dir}/NETfishingServer.x86_64"
 install -m 0644 "${source_dir}/NETfishingServer.pck" \
 	"${destination_dir}/NETfishingServer.pck"
+rm -rf -- "${licenses_dir}"
+install -d -m 0755 "${licenses_dir}"
+install -m 0644 "${repository_dir}/LICENSE" \
+	"${licenses_dir}/GPL-3.0-or-later.txt"
+install -m 0644 "${repository_dir}/ASSET-LICENSE.md" \
+	"${licenses_dir}/ASSET-LICENSE.md"
+install -m 0644 "${repository_dir}/THIRD-PARTY-NOTICES.md" \
+	"${licenses_dir}/THIRD-PARTY-NOTICES.md"
+install -m 0644 "${repository_dir}/TRADEMARKS.md" \
+	"${licenses_dir}/TRADEMARKS.md"
+install -m 0644 "${repository_dir}/CREDITS.md" \
+	"${licenses_dir}/CREDITS.md"
 
 cd -- "${destination_dir}"
 executable_sha256="$(sha256sum NETfishingServer.x86_64 | awk '{print $1}')"
@@ -48,6 +61,27 @@ printf '%s\n' \
 	"executable_sha256=${executable_sha256}" \
 	"pck_sha256=${pck_sha256}" \
 	> BUILD_INFO
+cat >SOURCE-CODE.md <<EOF
+# Corresponding source
+
+NETfishing dedicated game-server code is licensed under GPL-3.0-or-later.
+
+Source repository: https://forge.makearmy.io/woofmeow/netfishing
+Exact game source revision: ${game_commit}
+
+Packaging source:
+https://forge.makearmy.io/woofmeow/netfishing-dedicated-server
+EOF
 umask "${apply_umask}"
-sha256sum NETfishingServer.x86_64 NETfishingServer.pck BUILD_INFO > SHA256SUMS
+sha256sum \
+	NETfishingServer.x86_64 \
+	NETfishingServer.pck \
+	BUILD_INFO \
+	SOURCE-CODE.md \
+	licenses/GPL-3.0-or-later.txt \
+	licenses/ASSET-LICENSE.md \
+	licenses/THIRD-PARTY-NOTICES.md \
+	licenses/TRADEMARKS.md \
+	licenses/CREDITS.md \
+	> SHA256SUMS
 echo "Staged dedicated server build in ${destination_dir}"