#!/bin/bash
# ============================================================================
# DarkForge Linux — Phase 0, Chapter 6: Tar
# ============================================================================
# Purpose:  Cross-compile GNU tar (archive utility).
# Inputs:   ${LFS}/sources/tar-latest.tar.xz (unversioned tarball from mirror)
# Outputs:  tar in ${LFS}/usr/bin/
# Ref:      LFS 13.0 §6.15
# ============================================================================

set -euo pipefail
source "${LFS}/sources/darkforge-env.sh"

PACKAGE="tar"
SRCDIR="${LFS}/sources"

echo "=== Building ${PACKAGE} (Temporary Tool) ==="

cd "${SRCDIR}"

# The mirror provides tar-latest.tar.xz (unversioned). Auto-detect the
# directory name inside the tarball.
tar -xf tar-latest.tar.xz
TARDIR=$(find . -maxdepth 1 -type d -name 'tar-[0-9]*' | head -1)
if [ -z "${TARDIR}" ]; then
    echo "ERROR: Could not find tar-* directory after extraction"
    exit 1
fi
VERSION="${TARDIR#./tar-}"
echo "  Detected version: ${VERSION}"
cd "${TARDIR}"

./configure \
    --prefix=/usr \
    --host="${LFS_TGT}" \
    --build="$(build-aux/config.guess)"

make
make DESTDIR="${LFS}" install

cd "${SRCDIR}"
rm -rf "${TARDIR}"
echo "=== ${PACKAGE}-${VERSION} complete ==="