FROM node:10-alpine
# due to https://github.com/http-party/http-server/issues/537

LABEL maintainer="Robert Kaussow <mail@geeklabor.de>" \
    org.label-schema.name="link-validator" \
    org.label-schema.vcs-url="https://gitea.rknet.org/docker/link-validator" \
    org.label-schema.vendor="Robert Kaussow" \
    org.label-schema.schema-version="1.0"

ARG BUILD_VERSION=latest

ENV BLC_VERSION="${BUILD_VERSION:-latest}" \
    LINK_VALIDATOR_BASE_DIR=/drone/src \
    LINK_VALIDATOR_SERVER_PORT=80 \
    FORCE_COLOR=true \
    NPM_CONFIG_LOGLEVEL=error

COPY overlay/ /

RUN echo "Installing requirements ..." && \
    npm install -g http-server && \
    BLC_VERSION="${BLC_VERSION##v}" && \
    BLC_MAJOR="${BLC_VERSION%%.*}" && \
    if [ -z "${BLC_MAJOR//[0-9]}" ] && [ -n "$BLC_MAJOR" ]; then \
        echo "Installing link-checker version '$BLC_VERSION' ..." && \
        npm install -g broken-link-checker@"$BLC_VERSION"; \
    else \
        echo "Installing latest link-checker ..." && \
        npm install -g broken-link-checker; \
    fi && \
    rm -rf /var/cache/apk/* && \
    rm -rf /tmp/*

USER root
CMD []
ENTRYPOINT ["/bin/link-validator"]