Initial commit: build env for the Ubtouch OS

Change-Id: I4bf8c32811d2785bd86a532f4cb435794f5c14d2

Dockerfile

@@ -0,0 +1,124 @@
+# Use specific Ubuntu version for reproducibility
+FROM ubuntu:22.04
+
+LABEL maintainer="Brax <support@braxtech.net>" \
+      description="Ubuntu Touch OS build environment" \
+      version="1.0"
+
+# Set build arguments for flexibility
+ARG CCACHE_SIZE=10G
+ARG DEBIAN_FRONTEND=noninteractive
+ARG TZ=UTC
+
+# Environment variables
+ENV DEBIAN_FRONTEND=${DEBIAN_FRONTEND} \
+    TZ=${TZ} \
+    USE_CCACHE=1 \
+    CCACHE_EXEC=/usr/bin/ccache \
+    JAVA_HOME=/usr/lib/jvm/java-11-openjdk-amd64
+
+# Set timezone to prevent tzdata interactive prompt
+RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && \
+    echo $TZ > /etc/timezone
+
+# Update package lists and install essential packages
+RUN dpkg --add-architecture i386 && \
+    apt-get update && \
+    apt-get install --no-install-recommends -y \
+        # Build essentials \
+        software-properties-common \
+        bc \
+        bison \
+        build-essential \
+        ccache \
+        curl \
+        git \
+        gnupg \
+        ca-certificates \
+        cpio \
+        curl \
+        fakeroot \
+        flex  \
+        kmod \
+        libelf-dev \
+        libssl-dev \
+        libtinfo5 \
+        lz4 \
+        python3 \
+        sudo  \
+        img2simg \
+        simg2img \
+        unzip \
+        zip \
+        wget \
+        zstd \
+        jq \
+        libncurses5 \
+        imagemagick \
+        liblz4-tool \
+        schedtool \
+        xsltproc \
+        rsync \
+        libxml2-utils \
+        python3-markdown \
+        tofrodos \
+        python2 \
+        gperf \
+        bzr \
+        libc6-dev \
+        libncurses5-dev:i386 \
+        x11proto-core-dev \
+        libx11-dev:i386 \
+        libreadline6-dev:i386 \
+        libgl1-mesa-glx:i386 \
+        libgl1-mesa-dev \
+        g++-multilib \
+        mingw-w64-i686-dev  \
+        zlib1g-dev:i386 \
+        lzop \
+        xz-utils && \
+    # Clean up package cache
+    apt-get autoclean && \
+    rm -rf /var/lib/apt/lists/*
+
+# python 2 is required for some android build tools
+RUN update-alternatives --install /usr/bin/python python /usr/bin/python2 1
+
+# Download and install Android platform-tools
+RUN mkdir -p /opt/platform-tools && \
+    cd /opt/platform-tools && \
+    wget -q https://dl.google.com/android/repository/platform-tools-latest-linux.zip && \
+    unzip -q platform-tools-latest-linux.zip && \
+    rm platform-tools-latest-linux.zip && \
+    mv platform-tools/* . && \
+    rmdir platform-tools && \
+    chmod +x adb fastboot
+
+# Add platform-tools to PATH
+ENV PATH="/opt/platform-tools:${PATH}"
+
+# Configure ccache
+RUN ccache -M ${CCACHE_SIZE} && \
+    ccache -s
+
+# Create workspace directory with proper ownership
+RUN mkdir -p /workspace && \
+    chown -R ${BUILD_USER}:${BUILD_USER} /workspace
+
+# Copy and set up entrypoint script
+COPY --chown=root:root docker-entrypoint.sh /usr/local/bin/docker-entrypoint
+COPY --chown=root:root docker-build.sh /usr/local/bin/docker-build
+RUN chmod +x /usr/local/bin/docker-entrypoint && \
+    chmod +x /usr/local/bin/docker-build
+
+# Switch to non-root user for security
+USER root
+WORKDIR /workspace
+
+# Set up user-specific configurations
+RUN echo 'export USE_CCACHE=1' >> ~/.bashrc && \
+    echo 'export CCACHE_EXEC=/usr/bin/ccache' >> ~/.bashrc
+
+# Set entrypoint and default command
+ENTRYPOINT ["docker-entrypoint"]
+CMD ["/bin/bash"]