FROM ubuntu:14.04

RUN apt-get -y update && \
    apt-get install -y curl git-core mingw-w64 xz-utils build-essential gcc-multilib wget unzip

RUN mkdir -p /opt/mingw && \
    curl -SL http://downloads.sourceforge.net/mingw-w64/i686-w64-mingw32-gcc-4.7.2-release-linux64_rubenvb.tar.xz | \
    tar -xJC /opt/mingw && \
    echo "export PATH=\$PATH:/opt/mingw/mingw32/bin" >> /etc/rubybashrc

RUN mkdir -p /opt/mingw && \
    curl -SL http://downloads.sourceforge.net/mingw-w64/x86_64-w64-mingw32-gcc-4.7.2-release-linux64_rubenvb.tar.xz | \
    tar -xJC /opt/mingw && \
    echo "export PATH=\$PATH:/opt/mingw/mingw64/bin" >> /etc/rubybashrc

# 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://keys.gnupg.net --recv-keys D39DC0E3 && \
    (curl -L http://get.rvm.io | sudo bash -s stable) && \
    bash -c " \
        source /etc/rubybashrc && \
        rvmsudo rvm cleanup all "

# Regenerate the following using build.sh if the build folder changes.
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| base64 -d | tar xzC /tmp

# Import patch files for ruby and gems
RUN cp -r /tmp/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' && \
    echo 'about to install patches for ruby 2.4.0 from:' && \
    ls -r ~/patches && \
    for v in 2.4.0 ; do \
	rvm install \$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 bundler rake-compiler hoe mini_portile rubygems-tasks && \
        rvm 2.4.0 do gem install mini_portile2 && \
        find /usr/local/rvm -type d -print0 | sudo xargs -0 chmod g+sw "

RUN bash -c "gem env"
RUN bash -c "gem list rake-compiler"

# 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

# Patch rake-compiler to avoid build of ruby extensions
RUN cd /usr/local/rvm/gems/ruby-2.4.0/gems/rake-compiler-0.9.5 && git apply /home/rvm/patches/rake-compiler-0.9.5/*.diff ; \
    true

RUN bash -c "rvm use 2.4.0 --default && \
    export MAKE=\"make -j`nproc`\" CFLAGS='-s -O1 -fno-omit-frame-pointer -fno-fast-math' && \
    rake-compiler cross-ruby VERSION=2.4.0 HOST=i686-w64-mingw32 && \
    rake-compiler cross-ruby VERSION=2.4.0 HOST=x86_64-w64-mingw32 && \
    rake-compiler cross-ruby VERSION=2.4.0 HOST=x86_64-linux-gnu && \
    rake-compiler cross-ruby VERSION=2.3.0 HOST=i686-w64-mingw32 && \
    rake-compiler cross-ruby VERSION=2.3.0 HOST=x86_64-w64-mingw32 && \
    rake-compiler cross-ruby VERSION=2.3.0 HOST=x86_64-linux-gnu && \
    rake-compiler cross-ruby VERSION=2.2.2 HOST=i686-w64-mingw32 && \
    rake-compiler cross-ruby VERSION=2.2.2 HOST=x86_64-w64-mingw32 && \
    rake-compiler cross-ruby VERSION=2.2.2 HOST=x86_64-linux-gnu && \
    rake-compiler cross-ruby VERSION=2.1.5 HOST=i686-w64-mingw32 && \
    rake-compiler cross-ruby VERSION=2.1.5 HOST=x86_64-w64-mingw32 && \
    rake-compiler cross-ruby VERSION=2.1.5 HOST=x86_64-linux-gnu && \
    rake-compiler cross-ruby VERSION=2.0.0-p645 HOST=i686-w64-mingw32 && \
    rake-compiler cross-ruby VERSION=2.0.0-p645 HOST=x86_64-w64-mingw32 && \
    rake-compiler cross-ruby VERSION=2.0.0-p645 HOST=x86_64-linux-gnu && \
    rm -rf ~/.rake-compiler/tmp/builds ~/.rake-compiler/sources && \
    find /usr/local/rvm -type d -print0 | sudo xargs -0 chmod g+sw "

RUN bash -c "rvm use 2.4.0 --default && \
    export MAKE=\"make -j`nproc`\" CFLAGS='-m32 -s -O1 -fno-omit-frame-pointer -fno-fast-math' LDFLAGS='-m32' && \
    rake-compiler cross-ruby VERSION=2.4.0 HOST=i686-linux-gnu && \
    rake-compiler cross-ruby VERSION=2.3.0 HOST=i686-linux-gnu && \
    rake-compiler cross-ruby VERSION=2.2.2 HOST=i686-linux-gnu && \
    rake-compiler cross-ruby VERSION=2.1.5 HOST=i686-linux-gnu && \
    rake-compiler cross-ruby VERSION=2.0.0-p645 HOST=i686-linux-gnu && \
    rm -rf ~/.rake-compiler/tmp/builds ~/.rake-compiler/sources && \
    find /usr/local/rvm -type d -print0 | sudo xargs -0 chmod g+sw "

RUN bash -c " \
    rvm alias create 2.4 2.4.0 "

USER root

# Fix paths in rake-compiler/config.yml and add rvm and mingw-tools to the global bashrc
RUN sed -i -- "s:/root/.rake-compiler:/usr/local/rake-compiler:g" /usr/local/rake-compiler/config.yml && \
    echo "source /etc/profile.d/rvm.sh" >> /etc/bash.bashrc && \
    echo "export PATH=\$PATH:/opt/mingw/mingw32/bin" >> /etc/bash.bashrc && \
    echo "export PATH=\$PATH:/opt/mingw/mingw64/bin" >> /etc/bash.bashrc

# Install wrappers for strip commands as a workaround for "Protocol error" in boot2docker.
RUN cp /tmp/build/strip_wrapper /root/
RUN sudo chmod +rx /root/strip_wrapper
RUN mv /opt/mingw/mingw32/bin/i686-w64-mingw32-strip /opt/mingw/mingw32/bin/i686-w64-mingw32-strip.bin && \
    mv /opt/mingw/mingw64/bin/x86_64-w64-mingw32-strip /opt/mingw/mingw64/bin/x86_64-w64-mingw32-strip.bin && \
    mv /usr/bin/i686-w64-mingw32-strip /usr/bin/i686-w64-mingw32-strip.bin && \
    mv /usr/bin/x86_64-w64-mingw32-strip /usr/bin/x86_64-w64-mingw32-strip.bin && \
    ln /root/strip_wrapper /opt/mingw/mingw32/bin/i686-w64-mingw32-strip && \
    ln /root/strip_wrapper /opt/mingw/mingw64/bin/x86_64-w64-mingw32-strip && \
    ln /root/strip_wrapper /usr/bin/i686-w64-mingw32-strip && \
    ln /root/strip_wrapper /usr/bin/x86_64-w64-mingw32-strip

RUN find / -name rbconfig.rb | while read f ; do sed -i 's/0x0501/0x0600/' $f ; done
RUN find / -name win32.h | while read f ; do sed -i 's/gettimeofday/rb_gettimeofday/' $f ; done
RUN sed -i 's/defined.__MINGW64__.$/1/' /usr/local/rake-compiler/ruby/i686-w64-mingw32/ruby-2.0.0-p645/include/ruby-2.0.0/ruby/win32.h
RUN find / -name libwinpthread.dll.a | xargs rm
RUN find / -name libwinpthread-1.dll | xargs rm
RUN find / -name *msvcrt-ruby*.dll.a | while read f ; do n=`echo $f | sed s/.dll//` ; mv $f $n ; done
RUN find /usr/local/rake-compiler/ruby -name libruby.so | xargs rm
RUN find /usr/local/rake-compiler/ruby -name libruby-static.a | while read f ; do ar t $f | xargs ar d $f ; done
RUN find /usr/local/rake-compiler/ruby -name libruby-static.a | while read f ; do mv $f `echo $f | sed s/-static//` ; done

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

# Install user mapper
RUN cp /tmp/build/runas /usr/local/bin/

# Install sudoers configuration
RUN cp /tmp/build/sudoers /etc/sudoers.d/rake-compiler-dock

# Fixup Ruby 2.4 'static' compilation issue.
RUN echo '!<arch>' > /usr/local/rake-compiler/ruby/x86_64-linux-gnu/ruby-2.4.0/lib/libruby.a
RUN echo '!<arch>' > /usr/local/rake-compiler/ruby/i686-linux-gnu/ruby-2.4.0/lib/libruby.a

ENV RUBY_CC_VERSION 2.4.0:2.3.0:2.2.2:2.1.5:2.0.0

RUN apt-get install -y g++-multilib

CMD bash