CI pipeline

.github/dependabot.yml

@@ -0,0 +1,15 @@
+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://docs.github.com/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file
+
+version: 2
+updates:
+  - package-ecosystem: "docker" # See documentation for possible values
+    directory: "/" # Location of package manifests
+    schedule:
+      interval: "weekly"
+  - package-ecosystem: "github-actions" # See documentation for possible values
+    directory: "/" # Location of package manifests
+    schedule:
+      interval: "weekly"

.github/workflows/docker-image.yml

@@ -0,0 +1,18 @@
+name: Docker Image CI
+
+on:
+  push:
+    branches: [ "master" ]
+  pull_request:
+    branches: [ "master" ]
+
+jobs:
+
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v5
+    - name: Build the Docker image
+      run: sh run.sh

.gitignore

@@ -1 +1,2 @@
 .idea
+build

README.md

@@ -83,8 +83,8 @@ TARGET_OPENJDK_VERSION="11" # 9, 10, 12, 13, 14 - retired, may not be working
                             # loom or tip - experimental, may be broken
 
 # clone repository
-git clone https://github.com/ev3dev-lang-java/openjdk-ev3.git
-cd openjdk-ev3
+# git clone https://github.com/ev3dev-lang-java/openjdk-ev3.git
+# cd openjdk-ev3
 
 # prepare working directory
 mkdir -p "$TARGET_WORKSPACE"

packaging/Dockerfile

@@ -14,7 +14,9 @@ RUN apt-get -qq update && \
         zip unzip \
         gnupg dctrl-tools dput \
         liblcms2-2 \
-        pigz xz-utils
+        pigz xz-utils \
+        build-essential \
+        g++
 
 # prepare a nonroot user
 COPY compiler.sudoers /etc/sudoers.d/compiler

run.sh

@@ -0,0 +1,50 @@
+#!/bin/sh
+
+rm -rf build
+
+# define parameters
+TARGET_WORKSPACE="$(pwd)/build" # 10 GB of free space should be sufficient, probably less
+TARGET_DEBIAN_VERSION="stretch" # stretch or buster
+TARGET_OPENJDK_VERSION="11" # 9, 10, 12, 13, 14 - retired, may not be working
+                            # 11, 15 - most likely working
+                            # loom or tip - experimental, may be broken
+
+# clone repository
+# git clone https://github.com/ev3dev-lang-java/openjdk-ev3.git
+# cd openjdk-ev3
+
+# prepare working directory
+mkdir -p "$TARGET_WORKSPACE"
+chmod -R 777 "$TARGET_WORKSPACE" # docker may not share UID with the current user
+
+# build base system container
+docker build --build-arg DEBIAN_RELEASE="$TARGET_DEBIAN_VERSION" \
+             --build-arg ARCH="armel" \
+             --tag "ev3dev-lang-java:jdk-cross-$TARGET_DEBIAN_VERSION" \
+             --file ./system/Dockerfile.cross \
+             ./system
+
+# on top of that, create a build scripts container
+docker build --build-arg commit="$(git rev-parse HEAD)" \
+             --build-arg extra="Manual build by $(whoami)" \
+             --build-arg DEBIAN_RELEASE="$TARGET_DEBIAN_VERSION" \
+             --build-arg BUILD_TYPE="cross" \
+             --tag "ev3dev-lang-java:jdk-cross-build" \
+             ./scripts
+
+# now run the build
+docker run --rm \
+           --interactive \
+           --tty \
+           --volume "$TARGET_WORKSPACE:/build" \
+           --env JDKVER="$TARGET_OPENJDK_VERSION" \
+           --env JDKVM="client" \
+           --env JDKPLATFORM="ev3" \
+           --env JDKDEBUG="release" \
+           --env AUTOBUILD="1" \
+           ev3dev-lang-java:jdk-cross-build
+
+# finally, make workspace accessible for all users (i.e. current one too) and list files in its root
+chmod -R 777 "$TARGET_WORKSPACE"
+# and list the output directory (now it should contain three *-ev3.tar.gz files)
+ls "$TARGET_WORKSPACE"

scripts/config.sh

@@ -19,7 +19,7 @@ TARBALL_MAX_DOWNLOADS=10
 JRI_MODULES="java.se,jdk.jdwp.agent,jdk.unsupported,jdk.management.agent,jdk.jartool,jdk.crypto.ec"
 
 JTREG="$BUILDDIR/jtreg"
-JTREG_URL="https://ci.adoptopenjdk.net/view/Dependencies/job/jtreg/lastSuccessfulBuild/artifact/jtreg-4.2.0-tip.tar.gz"
+JTREG_URL="https://ftp2.osuosl.org/pub/blfs/conglomeration/jdk/jtreg-4.2.0-tip.tar.gz"
 JTREG_FILE="$BUILDDIR/jtreg.tar.gz"
 
 ###############################################################################
@@ -183,7 +183,7 @@ elif [ "$JDKVER" == "10" ]; then
 
 # OpenJDK 11
 elif [ "$JDKVER" == "11" ]; then
-  VERSION_POLICY="latest_general_availability"
+  VERSION_POLICY="jdk-11.0.15+10"
   JAVA_SCM="git"
   JAVA_REPO="https://github.com/openjdk/jdk11u.git"
   PATCHVER="jdk11"

system/Dockerfile.cross

@@ -4,75 +4,75 @@ FROM debian:$DEBIAN_RELEASE
 ARG DEBIAN_RELEASE
 ARG ARCH
 
-# this is a customized version of ev3dev-stretch-cross image
+# This is a customized version of ev3dev-stretch-cross image
 
-# setup repositories and install required packages
+# Setup repositories and install required packages
 COPY sources.list.$DEBIAN_RELEASE /etc/apt/sources.list
 COPY ev3dev-archive-keyring.gpg /etc/apt/trusted.gpg.d/
+
+# Install native packages first
 RUN dpkg --add-architecture $ARCH && \
-    apt-get -qq update && \
-    DEBIAN_FRONTEND=noninteractive apt-get -qq install --yes --no-install-recommends \
-        bash-completion \
-        ca-certificates \
-        cmake \
-        build-essential \
+    apt-get update && \
+    DEBIAN_FRONTEND=noninteractive apt-get install -y \
+        ca-certificates wget curl less nano vim bash-completion tree sudo \
+        man-db cmake build-essential gdb-multiarch pkg-config qemu-user-static \
+        xz-utils zip pigz unzip cpio file make m4 gawk procps autoconf \
+        autoconf-archive automake autotools-dev mercurial git systemtap \
+        systemtap-sdt-dev zlib1g-dev gdb libarchive13 libbabeltrace-ctf1 \
+        libbabeltrace1 libcurl3 libcurl3-gnutls libdw1 libgnutls30 \
+        g++
+
+# Install cross-compilation packages with ALL dependencies in one go
+RUN DEBIAN_FRONTEND=noninteractive apt-get install -y \
         crossbuild-essential-$ARCH \
-        gdb-multiarch \
-        less \
-        man-db \
-        nano \
-        pkg-config \
-        qemu-user-static \
-        sudo \
-        tree \
-        vim \
-        wget \
-        xz-utils \
-        libcups2-dev:$ARCH       \
-        libfreetype6-dev:$ARCH   \
+        # X11 development libraries
+        libx11-dev:$ARCH \
+        libxext-dev:$ARCH \
+        libxrender-dev:$ARCH \
+        libxrandr-dev:$ARCH \
+        libxtst-dev:$ARCH \
+        libxt-dev:$ARCH \
+        # CUPS printing system
+        libcups2-dev:$ARCH \
+        libcups2:$ARCH \
+        libcupsimage2-dev:$ARCH \
+        # Font and graphics
+        libfreetype6-dev:$ARCH \
+        libfreetype6:$ARCH \
         libfontconfig1-dev:$ARCH \
-        libasound2-dev:$ARCH     \
-        libx11-dev:$ARCH         \
-        libxext-dev:$ARCH        \
-        libxrender-dev:$ARCH     \
-        libxrandr-dev:$ARCH      \
-        libxtst-dev:$ARCH        \
-        libxt-dev:$ARCH          \
-        libffi-dev:$ARCH         \
-        libpng-dev:$ARCH         \
-        libjpeg-dev:$ARCH        \
-        libgif-dev:$ARCH         \
-        liblcms2-dev:$ARCH       \
-        zlib1g-dev:$ARCH         \
-        systemtap                \
-        systemtap-sdt-dev        \
-        curl \
-        make \
-        m4 \
-        cpio \
-        gawk \
-        file \
-        zip \
-        pigz \
-        unzip \
-        procps \
-        autoconf \
-        autoconf-archive \
-        automake \
-        autotools-dev \
-        mercurial \
-        git \
-        zlib1g-dev && \
-    ( if [ "$DEBIAN_RELEASE" = "stretch" ]; then \
-        wget http://ftp.debian.org/debian/pool/main/s/systemtap/systemtap-sdt-dev_3.1-2_$ARCH.deb -O /tmp/systemtap.deb; \
+        libfontconfig1:$ARCH \
+        libexpat1-dev:$ARCH \
+        # Multimedia
+        libasound2-dev:$ARCH \
+        # Compression and images
+        libffi-dev:$ARCH \
+        libpng-dev:$ARCH \
+        libpng16-16:$ARCH \
+        libjpeg-dev:$ARCH \
+        libgif-dev:$ARCH \
+        liblcms2-dev:$ARCH \
+        zlib1g-dev:$ARCH \
+        zlib1g:$ARCH \
+        # Essential C development for cross-compilation
+        libc6-dev:$ARCH \
+        linux-libc-dev:$ARCH \
+        build-essential \
+        g++
+
+# Clean up
+RUN rm -rf /var/lib/apt/lists/*
+
+# Download and extract architecture-specific systemtap-sdt-dev
+RUN ( if [ "$DEBIAN_RELEASE" = "stretch" ]; then \
+        wget http://archive.debian.org/debian/pool/main/s/systemtap/systemtap-sdt-dev_3.1-2_$ARCH.deb -O /tmp/systemtap.deb; \
       elif [ "$DEBIAN_RELEASE" = "buster" ]; then \
-        wget http://ftp.debian.org/debian/pool/main/s/systemtap/systemtap-sdt-dev_4.0-1_$ARCH.deb -O /tmp/systemtap.deb; \
+        wget http://archive.debian.org/debian/pool/main/s/systemtap/systemtap-sdt-dev_4.0-1_$ARCH.deb -O /tmp/systemtap.deb; \
       fi ) && \
     dpkg-deb -x /tmp/systemtap.deb / && \
-    rm -rf /tmp/systemtap.deb /var/lib/apt/lists/*
+    rm -rf /tmp/systemtap.deb
 
-# prepare a nonroot user
+# Prepare a nonroot user
 COPY compiler.sudoers /etc/sudoers.d/compiler
 RUN chmod 0440 /etc/sudoers.d/compiler && \
-    adduser --disabled-password --gecos \"\" compiler && \
+    adduser --disabled-password --gecos "" compiler && \
     usermod -a -G sudo compiler