Bootstrap: docker
From: ubuntu:20.04

%labels
    Author ATGC
    Tool MRP
    Runtime PAUP*

%post
    set -eu
    export DEBIAN_FRONTEND=noninteractive

    # PAUP Ubuntu binary needs legacy runtime libraries shipped in universe.
    sed -i 's/ main restricted/ main restricted universe/g' /etc/apt/sources.list

    apt-get update
    apt-get install -y --no-install-recommends \
        ca-certificates \
        wget \
        gzip \
        libgfortran4 \
        libpython2.7 \
        libcurl3-gnutls

    PAUP_URL="${PAUP_URL:-https://phylosolutions.com/paup-test/paup4a169_ubuntu64.gz}"
    wget -q -O /tmp/paup.gz "${PAUP_URL}"
    gzip -dc /tmp/paup.gz > /usr/local/bin/paup
    chmod +x /usr/local/bin/paup

    # Compatibility symlinks for scripts/tools expecting legacy PAUP names.
    ln -sf /usr/local/bin/paup /usr/local/bin/paup4
    ln -sf /usr/local/bin/paup /usr/local/bin/paup4a169

    rm -f /tmp/paup.gz
    apt-get clean
    rm -rf /var/lib/apt/lists/*

%environment
    export PATH=/usr/local/bin:$PATH

%runscript
    exec /usr/local/bin/paup -n "$@"

%test
    test -x /usr/local/bin/paup