Add a script to fetch the libffi subproject via GIT/SSH API

This lets us work around the frequent https-based cloning outages
for the libffi subproject.

1 files changed, 28 insertions, 0 deletions

diff --git a/scripts/fetch-libffi-subproject.sh b/scripts/fetch-libffi-subproject.sh
new file mode 100755
index 000000000..0b4f58521
--- /dev/null
+++ b/scripts/fetch-libffi-subproject.sh
@@ -0,0 +1,28 @@
+#!/bin/bash
+
+# SPDX-License-Identifier: GPL-2.0-or-later
+#
+# Copyright (C) 2021-2021  kcgen <kcgen@users.noreply.github.com>
+
+# This script exists only to easily fetch the libffi subproject
+# because the repository's HTTPS interface used by the glib wrap
+# is frequently down.
+#
+# Ref: https://gitlab.freedesktop.org/gstreamer/meson-ports/libffi/-/issues/8
+#
+set -euo pipefail
+
+repo_root="$(git rev-parse --show-toplevel)"
+
+subproject_branch="meson"
+subproject_dir="$repo_root/subprojects/libffi"
+subproject_repo="git@gitlab.freedesktop.org:gstreamer/meson-ports/libffi.git"
+fallback_tarball="https://github.com/dosbox-staging/dosbox-staging/files/7780837/libffi.tar.xz.zip"
+
+if [[ ! -d "$subproject_dir" ]]; then
+	GIT_SSH_COMMAND="ssh -o StrictHostKeyChecking=no -o LogLevel=ERROR" \
+	git clone --depth 1 --branch "$subproject_branch" "$subproject_repo" "$subproject_dir" || \
+	curl -L "$fallback_tarball" | xz -dc | tar -x -C "$repo_root/subprojects/"
+else
+	echo "subproject_dir already exists, skipping clone"
+fi