#!/bin/bash
# =============================================================================
# packages/crun/crun.SlackBuild
#
# Builds the crun .txz package from upstream source (C, autotools). crun is
# the OCI runtime this project uses (preferred over runc — lighter, cgroup
# v2-friendly, see docs/ARCHITECTURE.md section 5.1).
#
# Requires (in the build environment): gcc, make, autoconf, automake,
# libtool, pkg-config, libcap-dev, libseccomp-dev, libyajl-dev, python3
# (used by crun's build-time code generator).
# =============================================================================

set -eu

REPO_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)"
# shellcheck source=/dev/null
. "$REPO_ROOT/scripts/lib/slackbuild-common.sh"
# shellcheck source=/dev/null
. "$REPO_ROOT/versions.env"

VERSION="$CRUN_VERSION"
ARCH="$PKG_ARCH"
BUILD="$PKG_BUILD"
TAG="$PKG_TAG"

sb_init "crun"

tarball=$(sb_fetch_and_verify "$CRUN_SRC_URL" "$CRUN_SRC_SHA256" "crun-$VERSION.tar.gz")
srcdir=$(sb_extract "$tarball")

for patch in "$CWD"/patches/*.patch; do
  [ -e "$patch" ] || continue
  echo "==> [crun] applying $(basename "$patch")"
  patch -d "$srcdir" -p1 < "$patch"
done

cd "$srcdir"

# GitHub's source archive does not include vendored git submodules
# (libocispec) that crun's release tarballs normally bundle; init/update
# them explicitly.
if [ -f .gitmodules ]; then
  echo "==> [crun] fetching submodules"
  git -c protocol.file.allow=always submodule update --init --recursive || true
fi

echo "==> [crun] autogen + configure"
./autogen.sh
./configure --prefix=/usr --disable-systemd

echo "==> [crun] make"
make

echo "==> [crun] make install into \$PKG"
make install DESTDIR="$PKG"

sb_install_docs "$srcdir/COPYING" "$srcdir/README.md"
sb_make_package "$VERSION" "$ARCH" "$BUILD" "$TAG"