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ci(pages): expand GitHub Pages into a demo landing + live benchmark
tools/pages/build_site.py copies the README GIFs, generates the GPU-free adapter benchmark via the CLI, and writes a self-contained index.html landing (hero + GIF gallery + highlights + links). pages.yml now builds this site, so the public URL is a real showcase, not just a bench table.
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‎.github/workflows/pages.yml‎

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with:
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python-version: "3.12"
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- run: python -m pip install --upgrade pip numpy
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- name: Generate benchmark dashboard
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working-directory: world_model_py
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run: |
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mkdir -p ../_site
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python -m world_model_py.cli bench-compare \
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--adapters dummy,remote --runs 300 --out ../_site/index.html
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- name: Build demo landing + benchmark dashboard
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run: python tools/pages/build_site.py --repo-root . --out _site --runs 300
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- uses: actions/upload-pages-artifact@v3
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with:
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path: _site

‎tools/pages/build_site.py‎

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"""Build the GitHub Pages site: a demo landing (GIFs) + the live benchmark.
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python3 tools/pages/build_site.py --repo-root . --out _site
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Copies docs/*.gif, generates the adapter benchmark dashboard via the CLI
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(GPU-free dummy vs remote-over-HTTP), and writes a self-contained index.html.
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Used by .github/workflows/pages.yml.
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"""
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import argparse
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import glob
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import html
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import os
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import shutil
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import subprocess
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import sys
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REPO_URL = "https://github.com/rsasaki0109/worldmodels_ros2"
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CAPTIONS = {
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"imagination.gif": "Imagined future occupancy + risk from one ROS 2 call (dummy).",
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"jepa_compare.gif": "Same camera stream, two real World Models: I-JEPA vs V-JEPA 2 surprise.",
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"nav2_scoring.gif": "Nav2 candidate paths ranked by model-based risk; safest highlighted.",
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"ijepa_surprise.gif": "Real I-JEPA surprise spiking on scene changes (GPU).",
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}
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HERO = "imagination.gif"
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ORDER = ["jepa_compare.gif", "nav2_scoring.gif", "ijepa_surprise.gif"]
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def _card(gif: str) -> str:
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cap = html.escape(CAPTIONS.get(gif, gif))
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return (f'<figure><img src="{gif}" alt="{cap}" loading="lazy">'
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f'<figcaption>{cap}</figcaption></figure>')
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def build_index(gifs: list) -> str:
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hero = _card(HERO) if HERO in gifs else ""
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gallery = "\n".join(_card(g) for g in ORDER if g in gifs)
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extras = "\n".join(_card(g) for g in sorted(gifs)
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if g != HERO and g not in ORDER)
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return f"""<!doctype html>
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<html lang="en"><head><meta charset="utf-8">
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<title>world_model_ros2 — the ROS 2 layer for World Models</title>
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<style>
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:root{{color-scheme:dark}}
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body{{font-family:system-ui,sans-serif;margin:0;background:#15151a;color:#e9e9ee}}
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.wrap{{max-width:980px;margin:0 auto;padding:2rem 1.2rem 4rem}}
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h1{{font-size:1.8rem;margin:.2rem 0}}
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a{{color:#5ad1ff}}
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.tag{{color:#a6a6b3;font-size:1.05rem}}
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.btns{{margin:1.2rem 0 2rem}}
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.btn{{display:inline-block;background:#3b82f6;color:#fff;padding:.55rem 1rem;border-radius:8px;text-decoration:none;margin-right:.6rem;font-weight:600}}
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.btn.alt{{background:#2a2a33;color:#e9e9ee}}
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ul.hi{{line-height:1.7}}
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figure{{margin:0 0 1.6rem}}
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img{{width:100%;border:1px solid #2a2a33;border-radius:10px;display:block}}
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figcaption{{color:#a6a6b3;font-size:.92rem;margin-top:.4rem}}
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.grid{{display:grid;grid-template-columns:1fr 1fr;gap:1.4rem}}
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@media(max-width:720px){{.grid{{grid-template-columns:1fr}}}}
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footer{{color:#6f6f7a;margin-top:2rem;font-size:.9rem}}
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</style></head><body><div class="wrap">
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<h1>world_model_ros2</h1>
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<p class="tag">Run existing World Models from ROS 2 — runtime, adapters,
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benchmark, visualization. <em>The ROS 2 layer for World Models, not another
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foundation model.</em></p>
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<div class="btns">
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<a class="btn" href="{REPO_URL}">View on GitHub</a>
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<a class="btn alt" href="bench.html">Live benchmark &rarr;</a>
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</div>
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<ul class="hi">
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<li><b>Two real model backends, one contract</b> — I-JEPA (image) &amp; V-JEPA&nbsp;2 (video).</li>
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<li><b>Local &harr; remote split</b> over a shared JSON wire (Cosmos/DreamZero-ready).</li>
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<li><b>Compiled Nav2 costmap layer</b> — predicted occupancy into the live costmap.</li>
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<li><b>rosbag2 &rarr; LeRobot</b> dataset export, GPU-free.</li>
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<li><b>RViz + Foxglove</b> imagination viewer.</li>
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</ul>
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{hero}
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<div class="grid">
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{gallery}
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{extras}
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</div>
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<footer>Auto-generated from the repo on every push · all GIFs are real
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pipeline / real model output · <a href="{REPO_URL}">source</a></footer>
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</div></body></html>"""
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def main():
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ap = argparse.ArgumentParser()
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ap.add_argument("--repo-root", default=".")
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ap.add_argument("--out", default="_site")
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ap.add_argument("--runs", type=int, default=300)
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args = ap.parse_args()
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repo = os.path.abspath(args.repo_root)
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out = os.path.abspath(args.out)
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os.makedirs(out, exist_ok=True)
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gifs = []
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for path in sorted(glob.glob(os.path.join(repo, "docs", "*.gif"))):
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shutil.copy(path, out)
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gifs.append(os.path.basename(path))
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subprocess.run(
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[sys.executable, "-m", "world_model_py.cli", "bench-compare",
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"--adapters", "dummy,remote", "--runs", str(args.runs),
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"--out", os.path.join(out, "bench.html")],
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cwd=os.path.join(repo, "world_model_py"), check=True,
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)
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with open(os.path.join(out, "index.html"), "w", encoding="utf-8") as fh:
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fh.write(build_index(gifs))
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print(f"built site at {out} ({len(gifs)} gifs + bench.html + index.html)")
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if __name__ == "__main__":
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main()

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