0b18cd0484
The pin was 4.3, chosen without checking; 4.7.2 is the current stable (released 2026-08-18). Getting this right matters more here than usual because the project diffs Godot screenshots against a reference renderer, so the engine version is part of the measurement. No Godot MCP server. Not because they are bad -- the mature ones need a LIVE editor plus a WebSocket plugin and a Python server, which is a daemon, an editor process and a second runtime added to an unattended loop. And their headline feature, scene-tree introspection and node manipulation, is built for someone hand-authoring scenes in the editor. This port GENERATES screens from exported JSON: the agent writes a loader, not a scene tree, so the feature that justifies the complexity does not apply. What it actually needs to verify itself -- run headless, screenshot, diff against sylpheed-cli screen render -- is already a bash job. Third-party skill packs are the opposite trade: pure context, no runtime. Worth revisiting, deliberately not installed now, because a skill is instructions injected into an agent running with approvals disabled -- a supply-chain decision, not a default -- and because P0/P1 need no advanced GDScript. The agent may propose one, naming the milestone it unblocks, for a human to vendor and review. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
101 lines
5.0 KiB
Docker
101 lines
5.0 KiB
Docker
# Autonomous port agent for the Sylpheed Godot menu shell.
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#
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# DELIBERATELY SMALL. The reverse-engineering container next door is 4.36 GB
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# because it builds Xenia Canary and drives it under a software Vulkan stack.
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# This agent has no emulator, no oracle and no C++ build: it converts already-
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# decoded assets and drives Godot. Keeping it light is what lets both containers
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# run on one 12-core / 15 GB box without the memory pressure that has crashed it.
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#
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# What it needs, and nothing else: Rust (the exporter), Godot 4 (the runtime),
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# ffmpeg (the transcode), and a headless display to screenshot Godot for
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# comparison against the reference renderer.
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FROM ubuntu:24.04
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ENV DEBIAN_FRONTEND=noninteractive \
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LANG=C.UTF-8 \
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TZ=Etc/UTC
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RUN apt-get update && apt-get install -y --no-install-recommends \
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# toolchain for the exporter and for building sylpheed-cli from /reborn
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build-essential pkg-config git curl ca-certificates \
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libssl-dev \
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# Godot 4 needs these even headless; the windowed run needs the X libs
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libx11-6 libxcursor1 libxinerama1 libxrandr2 libxi6 libgl1 \
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libasound2t64 libpulse0 libfontconfig1 \
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# the transcode target (libtheora + libvorbis ship in Ubuntu's ffmpeg)
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ffmpeg \
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# headless display + the screenshot path, for diffing Godot's output
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# against `sylpheed-cli screen render`
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xvfb x11-utils openbox imagemagick \
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# everyday
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python3 jq ripgrep unzip file less nano tini sudo procps \
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# expect drives Claude Code's one-time interactive gates
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expect \
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&& rm -rf /var/lib/apt/lists/*
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# ── Godot 4 ──────────────────────────────────────────────────────────────────
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# Pinned. An engine version bump changes rendering, and this project compares
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# screenshots against a reference renderer — so an upgrade must be a deliberate,
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# stated act rather than a silent drift.
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ARG GODOT_VERSION=4.7.2
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RUN cd /tmp \
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&& curl -fsSLO "https://github.com/godotengine/godot/releases/download/${GODOT_VERSION}-stable/Godot_v${GODOT_VERSION}-stable_linux.x86_64.zip" \
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&& unzip -q "Godot_v${GODOT_VERSION}-stable_linux.x86_64.zip" \
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&& mv "Godot_v${GODOT_VERSION}-stable_linux.x86_64" /usr/local/bin/godot \
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&& chmod +x /usr/local/bin/godot \
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&& printf '#!/bin/sh\nexec /usr/local/bin/godot --headless "$@"\n' > /usr/local/bin/godot-headless \
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&& chmod +x /usr/local/bin/godot-headless \
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&& rm -f "Godot_v${GODOT_VERSION}-stable_linux.x86_64.zip"
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# ── Node + Claude Code ───────────────────────────────────────────────────────
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RUN curl -fsSL https://deb.nodesource.com/setup_22.x | bash - \
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&& apt-get install -y --no-install-recommends nodejs \
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&& npm install -g @anthropic-ai/claude-code \
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&& npm cache clean --force \
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&& rm -rf /var/lib/apt/lists/*
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# ── The agent user ───────────────────────────────────────────────────────────
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# NOT root: Claude Code refuses --dangerously-skip-permissions with root
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# privileges. Ubuntu 24.04 ships its own `ubuntu` account at uid 1000, so the
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# common case — matching a host user who is also 1000 — collides with it.
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ARG AGENT_UID=1000
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ARG AGENT_GID=1000
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RUN if getent passwd "${AGENT_UID}" >/dev/null; then \
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userdel -r "$(getent passwd "${AGENT_UID}" | cut -d: -f1)" 2>/dev/null || true; \
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fi; \
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if getent group "${AGENT_GID}" >/dev/null; then \
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groupdel "$(getent group "${AGENT_GID}" | cut -d: -f1)" 2>/dev/null || true; \
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fi; \
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groupadd -g "${AGENT_GID}" agent \
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&& useradd -m -u "${AGENT_UID}" -g "${AGENT_GID}" -s /bin/bash -d /sylph-home/port agent \
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&& mkdir -p /sylph-home/port /work /reborn \
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&& chown -R "${AGENT_UID}:${AGENT_GID}" /sylph-home \
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&& echo 'agent ALL=(ALL) NOPASSWD: ALL' > /etc/sudoers.d/agent
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COPY bin/ /usr/local/bin/
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COPY entrypoint.sh /usr/local/bin/entrypoint.sh
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RUN chmod +x /usr/local/bin/* /usr/local/bin/entrypoint.sh
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USER agent
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WORKDIR /work
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# CARGO_TARGET_DIR points OUTSIDE the bind-mounted repo so the host and the
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# container do not invalidate each other's incremental state on every switch.
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ENV RUSTUP_HOME=/sylph-home/port/.rustup \
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CARGO_HOME=/sylph-home/port/.cargo \
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CARGO_TARGET_DIR=/sylph-home/port/target-container \
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PATH=/sylph-home/port/.cargo/bin:/usr/local/bin:/usr/bin:/bin
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RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs \
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| sh -s -- -y --default-toolchain stable --profile minimal --component clippy --component rustfmt
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RUN mkdir -p /sylph-home/port/target-container /sylph-home/port/.claude
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ENV HOME=/sylph-home/port \
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DISPLAY=:97 \
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SCREEN_GEOMETRY=1280x720x24 \
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PROJECT_DIR=/work
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ENTRYPOINT ["/usr/bin/tini", "--", "/usr/local/bin/entrypoint.sh"]
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CMD ["bash"]
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