set -e

SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )

HOST_OS="$(uname -s)"

IMAGE_ARCHIVE_NAME="linux-aarch64-Images-v6.12.62-anylinuxfs.tar.gz"

RELEASE_URL="https://github.com/nohajc/libkrunfw/releases/download/v6.12.62-rev1"

IMAGE_ARCHIVE_URL="${RELEASE_URL}/${IMAGE_ARCHIVE_NAME}"

MODULES_ARCHIVE_NAME="modules.squashfs"

MODULES_ARCHIVE_URL="${RELEASE_URL}/${MODULES_ARCHIVE_NAME}"

INIT_BSD="init-freebsd"

INIT_BSD_URL="https://github.com/nohajc/libkrun/releases/download/v1.17.0-init-bsd/${INIT_BSD}"

if [[ "$HOST_OS" == "Darwin" ]]; then

GVPROXY_VERSION="0.8.8"

GVPROXY_URL="https://github.com/containers/gvisor-tap-vsock/releases/download/v${GVPROXY_VERSION}/gvproxy-darwin"

VMNET_HELPER_VERSION="0.11.0"

VMNET_HELPER_URL="https://github.com/nirs/vmnet-helper/releases/download/v${VMNET_HELPER_VERSION}/vmnet-helper.tar.gz"

cd "$SCRIPT_DIR"

curl -L -o "$IMAGE_ARCHIVE_NAME" "$IMAGE_ARCHIVE_URL"

mkdir -p "libexec"

tar xzf "$IMAGE_ARCHIVE_NAME" -C "libexec"

rm "$IMAGE_ARCHIVE_NAME"

curl -LO "$MODULES_ARCHIVE_URL"

mkdir -p "lib"

mv ${MODULES_ARCHIVE_NAME} lib/

curl -LO "$INIT_BSD_URL"

mv "$INIT_BSD" "libexec/"

chmod +x "libexec/$INIT_BSD"

if [[ "$HOST_OS" == "Darwin" ]]; then

curl -L -o libexec/gvproxy "$GVPROXY_URL"

chmod +x libexec/gvproxy

# Build gvproxy from a pinned commit on upstream. The vfkit-mode patch we

# needed is merged but not in a tagged release yet; switch back to a

# tagged tarball once a release ships.

GVPROXY_COMMIT="c09fb7d0a9e08260d238066c3c4311498d15311e"

GVPROXY_TMP="$(mktemp -d "$SCRIPT_DIR/.gvproxy-build.XXXXXX")"

git -C "$GVPROXY_TMP" init -q

git -C "$GVPROXY_TMP" remote add origin https://github.com/containers/gvisor-tap-vsock.git

git -C "$GVPROXY_TMP" fetch --depth=1 origin "$GVPROXY_COMMIT"

git -C "$GVPROXY_TMP" checkout -q FETCH_HEAD

(cd "$GVPROXY_TMP" && make)

cp "$GVPROXY_TMP/bin/gvproxy" libexec/gvproxy

chmod +x libexec/gvproxy

rm -rf "$GVPROXY_TMP"

if [[ "$HOST_OS" == "Darwin" ]]; then

curl -LO "$VMNET_HELPER_URL"

tar xzf vmnet-helper.tar.gz -C libexec --strip-components=4 ./opt/vmnet-helper/bin/vmnet-helper

rm vmnet-helper.tar.gz