FROM ubuntu:18.04

RUN apt-get -y update && \
    apt-get install -y curl git-core xz-utils wget unzip sudo gpg dirmngr openjdk-11-jdk-headless

# Add "rvm" as system group, to avoid conflicts with host GIDs typically starting with 1000
RUN groupadd -r rvm && useradd -r -g rvm -G sudo -p "" --create-home rvm && \
    echo "source /etc/profile.d/rvm.sh" >> /etc/rubybashrc
USER rvm

# install rvm, RVM 1.26.0+ has signed releases, source rvm for usage outside of package scripts
RUN gpg --keyserver hkp://pool.sks-keyservers.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 7D2BAF1CF37B13E2069D6956105BD0E739499BDB && \
    (curl -L http://get.rvm.io | sudo bash -s stable) && \
    bash -c " \
        source /etc/rubybashrc && \
        rvmsudo rvm cleanup all "

# Import patch files for ruby and gems
COPY build/patches /home/rvm/patches/
ENV BASH_ENV /etc/rubybashrc

# install rubies and fix permissions on
RUN bash -c " \
    export CFLAGS='-s -O3 -fno-fast-math -fPIC' && \
    for v in jruby-9.2.5.0 ; do \
        rvm install --binary \$v --patch \$(echo ~/patches/ruby-\$v/* | tr ' ' ','); \
    done && \
    rvm cleanup all && \
    find /usr/local/rvm -type d -print0 | sudo xargs -0 chmod g+sw "

# Install rake-compiler and typical gems in all Rubies
# do not generate documentation for gems
RUN echo "gem: --no-ri --no-rdoc" >> ~/.gemrc && \
    bash -c " \
        rvm all do gem install --no-document bundler 'bundler:~>1.16' rake-compiler hoe rubygems-tasks && \
        find /usr/local/rvm -type d -print0 | sudo xargs -0 chmod g+sw "

# Install rake-compiler's cross rubies in global dir instead of /root
RUN sudo mkdir -p /usr/local/rake-compiler && \
    sudo chown rvm.rvm /usr/local/rake-compiler && \
    ln -s /usr/local/rake-compiler ~/.rake-compiler

USER root

RUN bash -c "rvm alias create default jruby-9.2.5.0"
RUN echo "rvm use jruby-9.2.5.0 > /dev/null" >> /etc/rubybashrc

# Add rvm to the global bashrc
RUN echo "source /etc/profile.d/rvm.sh" >> /etc/bash.bashrc

# Install SIGINT forwarder
COPY build/sigfw.c /root/
RUN gcc $HOME/sigfw.c -o /usr/local/bin/sigfw

# Install user mapper
COPY build/runas /usr/local/bin/

# Install sudoers configuration
COPY build/sudoers /etc/sudoers.d/rake-compiler-dock

CMD bash