Dockerfile: Do not copy .git; set static version instead

FROM perl:5.30-slim

ARG DEBIAN_FRONTEND=noninteractive

ARG APT_LISTCHANGES_FRONTEND=none

COPY cpanfile /app/cpanfile

WORKDIR /app

	&& apt-get -y clean \

	&& rm -rf /var/cache/apt/* /var/lib/apt/lists/*

COPY . /app

COPY .git/ /app/.git/

COPY lib/ /app/lib/

COPY public/ /app/public/

COPY templates/ /app/templates/

COPY share/ /app/share/

COPY index.pl /app

RUN find lib -name *.pm | xargs sed -i \

	-e "s/VERSION *= *.*;/VERSION = '$(git describe)';/" \

	-e "s/dbf_version *= *.*;/dbf_version = '$(git describe)';/" \

	&& rm -rf .git

RUN ln -sf ../ext-templates/imprint.html.ep templates/imprint.html.ep \

	&& ln -sf ../ext-templates/privacy.html.ep templates/privacy.html.ep