Dockerfile.build

# Build environment for producing the Eclipse Linux ISO.
#
# Mirrors the GitHub Actions runner from .github/workflows/release.yml so the
# same `make iso` flow works locally on any host (including NixOS, where
# chroot + bind mounts on the host are inconvenient).
#
# Build:
#   docker build -f Dockerfile.build -t eclipse-linux-build .
#
# Use:
#   docker run --rm --privileged \
#       -v "$(pwd)":/src -w /src \
#       eclipse-linux-build \
#       make iso
#
#   # The --privileged flag is required: scripts/build-rootfs.sh runs
#   # chroot + bind-mounts /proc, /sys, /dev inside the container, and
#   # scripts/build-iso.sh uses losetup-like ISO assembly.

FROM ubuntu:24.04

ARG ZIG_VERSION=0.15.2
ARG NEOMAKE_REV=aaa042162542db06912bdf08cc26be67f8a8ad68
ARG RUST_TARGET=x86_64-unknown-linux-musl

ENV DEBIAN_FRONTEND=noninteractive \
    PATH=/root/.cargo/bin:/usr/local/bin:/usr/bin:/bin

# Host tooling expected by scripts/build-rootfs.sh, scripts/build-iso.sh, and
# the Makefile's iso/installer/test-* targets. Mirrors the apt list in
# .github/workflows/release.yml plus the rootfs script's runtime needs.
RUN apt-get update && apt-get install -y --no-install-recommends \
        ca-certificates \
        curl \
        wget \
        git \
        sudo \
        xz-utils \
        build-essential \
        pkg-config \
        musl-tools \
        squashfs-tools \
        xorriso \
        grub-common \
        grub-pc-bin \
        grub-efi-amd64-bin \
        mtools \
        cpio \
        gzip \
        unzip \
        rsync \
        parted \
        dialog \
        util-linux \
        qemu-utils \
    && rm -rf /var/lib/apt/lists/*

# Zig — same version as CI (mlugg/setup-zig@v2 with version: "0.15.0")
RUN curl -fsSL "https://ziglang.org/download/${ZIG_VERSION}/zig-x86_64-linux-${ZIG_VERSION}.tar.xz" \
        | tar -xJ -C /opt \
    && ln -s "/opt/zig-x86_64-linux-${ZIG_VERSION}/zig" /usr/local/bin/zig

# Rustup + stable toolchain + musl target — same setup as dtolnay/rust-toolchain@stable
RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs \
        | sh -s -- -y --default-toolchain stable --profile minimal \
    && rustup target add "${RUST_TARGET}"

# neomake — pinned to the same revision as shell.nix and CI
RUN cargo install --git https://github.com/sinisterMage/neomake \
        --rev "${NEOMAKE_REV}" \
        --bin neomake \
    && neomake --version

WORKDIR /src

# Default to running `make iso`; override with any other command at `docker run`.
CMD ["make", "iso"]