# Android Dockerfile based on uber/android-build-environment

FROM ubuntu:16.04

# Never ask for confirmations
ENV DEBIAN_FRONTEND noninteractive

# SDK version
ENV ANDROID_SDK_VERSION 3859397

# Update apt-get
RUN apt-get update \
  && apt-get install -y --no-install-recommends \
      ca-certificates \
      build-essential \
      software-properties-common \
      unzip \
      wget \
      zip \
  && apt-add-repository ppa:openjdk-r/ppa \
  && apt-get update \
  && apt-get install -y openjdk-8-jdk \
      -o Dpkg::Options::="--force-overwrite" \
  && apt-get autoremove -y \
  && apt-get clean \
  && rm -rf /var/lib/apt/lists/*

# Install Android SDK
RUN wget https://dl.google.com/android/repository/sdk-tools-linux-$ANDROID_SDK_VERSION.zip -q \
  && mkdir /usr/local/android \
  && unzip sdk-tools-linux-$ANDROID_SDK_VERSION.zip -d /usr/local/android \
  && rm sdk-tools-linux-$ANDROID_SDK_VERSION.zip

# Environment variables
ENV ANDROID_HOME /usr/local/android
ENV ANDROID_SDK_HOME $ANDROID_HOME
ENV ANDROID_NDK_HOME $ANDROID_HOME/ndk-bundle
ENV PATH $ANDROID_HOME/tools/bin:$PATH

# Export JAVA_HOME variable
ENV JAVA_HOME /usr/lib/jvm/java-8-openjdk-amd64

# Install Android SDK components
RUN echo "y" | sdkmanager \
  "platform-tools" \
  "platforms;android-26" \
  "build-tools;26.0.2" \
  \
  "ndk-bundle" \
  "lldb;2.3" \
  "cmake;3.6.4111459"

# Support Gradle
ENV TERM dumb
ENV JAVA_OPTS "-Xms512m -Xmx1024m"
ENV GRADLE_OPTS "-XX:+UseG1GC -XX:MaxGCPauseMillis=1000"

# Add build user account, values are set to default below
ENV RUN_USER builder
ENV RUN_UID 5000

RUN id $RUN_USER || adduser --uid "$RUN_UID" \
  --gecos 'Build User' \
  --shell '/bin/sh' \
  --disabled-login \
  --disabled-password "$RUN_USER"

# Fix permissions
RUN chown -R $RUN_USER:$RUN_USER $ANDROID_HOME
RUN chmod -R a+rx $ANDROID_HOME

# Creating project directories prepared for build when running
# `docker run`
ENV PROJECT /project
RUN mkdir $PROJECT
RUN chown -R $RUN_USER:$RUN_USER $PROJECT
WORKDIR $PROJECT

USER $RUN_USER
RUN echo "sdk.dir=$ANDROID_HOME" > local.properties

CMD ["./gradlew", "build"]