# Go cross compiler (xgo): Base cross-compilation layer
# Copyright (c) 2014 Péter Szilágyi. All rights reserved.
#
# Released under the MIT license.

FROM ubuntu:14.04

MAINTAINER Péter Szilágyi <peterke@gmail.com>

# Configure the Go environment, since it's not going to change
ENV PATH   /usr/local/go/bin:$PATH
ENV GOPATH /go


# Inject the remote file fetcher and checksum verifier
ADD fetch.sh /fetch.sh
ENV FETCH /fetch.sh
RUN chmod +x $FETCH


# Make sure apt-get is up to date and dependent packages are installed
RUN \
  apt-get update && \
  apt-get install -y automake autogen build-essential ca-certificates      \
    gcc-arm-linux-gnueabi g++-arm-linux-gnueabi libc6-dev-armel-cross      \
    gcc-multilib g++-multilib gcc-mingw-w64 g++-mingw-w64 clang llvm-dev   \
    libtool libxml2-dev uuid-dev libssl-dev pkg-config patch make xz-utils \
    cpio wget unzip p7zip git mercurial bzr --no-install-recommends

# Configure the container for OSX cross compilation
ENV OSX_SDK_PATH https://github.com/trevd/android_platform_build2/raw/master/osxsdks10.6.tar.gz
ENV OSX_SDK      MacOSX10.6.sdk

RUN \
  git clone https://github.com/tpoechtrager/osxcross.git && \
  \
  $FETCH $OSX_SDK_PATH f526b4ae9806e8d31e3b094e3f004f8f160a3fad && \
  tar -xzf `basename $OSX_SDK_PATH` --strip-components 1 SDKs/$OSX_SDK && \
  tar -cjf /osxcross/tarballs/$OSX_SDK.tar.bz2 $OSX_SDK && \
  rm -rf `basename $OSX_SDK_PATH` $OSX_SDK && \
  \
  UNATTENDED=yes /osxcross/build.sh

ENV PATH /osxcross/target/bin:$PATH

# Configure the container for Android cross compilation
ENV ANDROID_NDK       android-ndk-r10e
ENV ANDROID_NDK_PATH  http://dl.google.com/android/ndk/$ANDROID_NDK-linux-x86_64.bin
ENV ANDROID_NDK_ROOT  /usr/local/$ANDROID_NDK
ENV ANDROID_PLATFORM  21
ENV ANDROID_CHAIN_ARM arm-linux-androideabi-4.9

RUN \
  $FETCH $ANDROID_NDK_PATH c685e5f106f8daa9b5449d0a4f21ee8c0afcb2f6 && \
  7zr x `basename $ANDROID_NDK_PATH` \
    "$ANDROID_NDK/build"                                           \
    "$ANDROID_NDK/sources/cxx-stl/gnu-libstdc++/4.9/include"       \
    "$ANDROID_NDK/sources/cxx-stl/gnu-libstdc++/4.9/libs/armeabi*" \
    "$ANDROID_NDK/prebuilt/linux-x86_64"                           \
    "$ANDROID_NDK/platforms/*/arch-arm"                            \
    "$ANDROID_NDK/toolchains/$ANDROID_CHAIN_ARM" -o/usr/local > /dev/null && \
  rm -f `basename $ANDROID_NDK_PATH`

ENV PATH /usr/$ANDROID_CHAIN_ARM/bin:$PATH

# Inject the old Go package downloader and tool-chain bootstrapper
ADD bootstrap.sh /bootstrap.sh
ENV BOOTSTRAP /bootstrap.sh
RUN chmod +x $BOOTSTRAP

# Inject the new Go root distribution downloader and secondary bootstrapper
ADD bootstrap_pure.sh /bootstrap_pure.sh
ENV BOOTSTRAP_PURE /bootstrap_pure.sh
RUN chmod +x $BOOTSTRAP_PURE

# Inject the C dependency cross compiler
ADD build_deps.sh /build_deps.sh
ENV BUILD_DEPS /build_deps.sh
RUN chmod +x $BUILD_DEPS

# Inject the container entry point, the build script
ADD build.sh /build.sh
ENV BUILD /build.sh
RUN chmod +x $BUILD

ENTRYPOINT ["/build.sh"]