#!/bin/bash
# =============================================================================
# packages/fuse-overlayfs/fuse-overlayfs.SlackBuild
#
# Builds the fuse-overlayfs .txz package from upstream source (C, autotools).
# Not used by the rootful storage path in Phase 1 (which uses the native
# overlay driver on the podman.img loopback filesystem — see
# docs/ARCHITECTURE.md section 10), but required ahead of time for the
# rootless Podman phase, where unprivileged overlay mounts generally aren't
# available (see docs/ARCHITECTURE.md section 0, "Nicht-Ziele" / ROADMAP.md
# Phase 3).
#
# Requires (in the build environment): gcc, make, autoconf, automake,
# libtool, pkg-config, libfuse3-dev.
# =============================================================================

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="$FUSE_OVERLAYFS_VERSION"
ARCH="$PKG_ARCH"
BUILD="$PKG_BUILD"
TAG="$PKG_TAG"

sb_init "fuse-overlayfs"

tarball=$(sb_fetch_and_verify "$FUSE_OVERLAYFS_SRC_URL" "$FUSE_OVERLAYFS_SRC_SHA256" "fuse-overlayfs-$VERSION.tar.gz")
srcdir=$(sb_extract "$tarball")

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

cd "$srcdir"

echo "==> [fuse-overlayfs] autogen + configure"
./autogen.sh
./configure --prefix=/usr

echo "==> [fuse-overlayfs] make"
make

echo "==> [fuse-overlayfs] make install into \$PKG"
make install DESTDIR="$PKG"

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