Dockerfile

# Hugging Face Spaces Production Dockerfile
# Stage 1: Build & Compile (Builder)
FROM node:20-slim AS builder

# Install build dependencies
# Install build dependencies including GitHub CLI
RUN apt-get update && apt-get install -y git python3 curl && \
    curl -fsSL https://cli.github.com/packages/githubcli-archive-keyring.gpg | dd of=/usr/share/keyrings/githubcli-archive-keyring.gpg \
    && chmod go+r /usr/share/keyrings/githubcli-archive-keyring.gpg \
    && echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/githubcli-archive-keyring.gpg] https://cli.github.com/packages stable main" | tee /etc/apt/sources.list.d/github-cli.list > /dev/null \
    && apt-get update \
    && apt-get install -y gh \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /app

# Download pre-built tree-sitter WASM parsers from a reliable mirror
RUN mkdir -p parsers && \
    BASE_URL="https://unpkg.com/tree-sitter-wasms@latest/out" && \
    echo "Downloading tree-sitter parsers..." && \
    for lang in javascript typescript python go cpp rust java c tsx; do \
        echo "Downloading tree-sitter-$lang.wasm..." && \
        curl -fsSL "$BASE_URL/tree-sitter-$lang.wasm" -o "parsers/tree-sitter-$lang.wasm" || \
        echo "WARNING: Failed to download tree-sitter-$lang.wasm - some language parsing may be unavailable"; \
    done && \
    ls -la parsers/ && \
    echo "Parser download complete"

# Copy dependency manifests
COPY package*.json ./

# Install all dependencies
ENV npm_config_loglevel=notice
RUN npm ci --ignore-scripts && npm cache clean --force

# Copy project source
COPY . .

# Compile TypeScript to JavaScript
RUN npm run build

# Remove development dependencies to reduce image size
RUN npm prune --production && npm cache clean --force

# Stage 2: Production Runtime (Final)
FROM node:20-slim

# Install runtime dependencies
# Install runtime dependencies including GitHub CLI
RUN apt-get update && apt-get install -y git python3 curl && \
    curl -fsSL https://cli.github.com/packages/githubcli-archive-keyring.gpg | dd of=/usr/share/keyrings/githubcli-archive-keyring.gpg \
    && chmod go+r /usr/share/keyrings/githubcli-archive-keyring.gpg \
    && echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/githubcli-archive-keyring.gpg] https://cli.github.com/packages stable main" | tee /etc/apt/sources.list.d/github-cli.list > /dev/null \
    && apt-get update \
    && apt-get install -y gh \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /app

# Copy parsers, node_modules, and lib from the builder stage
COPY --from=builder /app/parsers ./parsers
COPY --from=builder /app/node_modules ./node_modules
COPY --from=builder /app/lib ./lib
COPY --from=builder /app/package*.json ./

# Copy README for HF Spaces
COPY README.md ./

# Copy HF Spaces entrypoint script
COPY hf-start.js ./

# HF Spaces uses PORT env var, defaulting to 7860
ENV PORT=${PORT:-7860}
ENV HOST=0.0.0.0
ENV PARSER_DIR=/app/parsers

# Health check for HF Spaces
HEALTHCHECK --interval=30s --timeout=10s --start-period=40s --retries=3 \
    CMD node -e "require('./lib/index.js'); console.log('Health check passed')" || exit 1

# Start Probot server with HF Spaces entrypoint
CMD ["node", "hf-start.js"]