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| |
| |
| import hashlib |
| import io |
| import json |
| import os |
| import sys |
| import tarfile |
|
|
| import requests |
|
|
| WLLAMA_VERSION = "3.6.1" |
| GGUF_DIR = os.path.join("models", "gguf") |
|
|
| |
| PINNED = { |
| "Qwen3-0.6B-Q8_0.gguf": ( |
| "Qwen/Qwen3-0.6B-GGUF", 639446688, |
| "9465e63a22add5354d9bb4b99e90117043c7124007664907259bd16d043bb031", |
| ), |
| "Ornith-1.5-9B-Q4_K_M.gguf": ( |
| "ornith-ai/Ornith-1.5-9B-GGUF", 5780090816, |
| "70c112196e0b7023803c9762752e46d29e612a92c83f995bc3ba1ceb07e8fab6", |
| ), |
| } |
|
|
|
|
| def vendor_wllama(): |
| os.makedirs(os.path.join("vendor", "wllama", "esm"), exist_ok=True) |
| print("downloading wllama engine assets (llama.cpp WASM) ...") |
| tgz = requests.get( |
| "https://registry.npmjs.org/@wllama/wllama/-/wllama-" + WLLAMA_VERSION + ".tgz", |
| timeout=120).content |
| with tarfile.open(fileobj=io.BytesIO(tgz), mode="r:gz") as t: |
| for member in t.getmembers(): |
| if member.name.startswith("package/esm/"): |
| dest = os.path.join("vendor/wllama/esm", |
| os.path.relpath(member.name, "package/esm")) |
| if member.isdir(): |
| os.makedirs(dest, exist_ok=True) |
| continue |
| os.makedirs(os.path.dirname(dest), exist_ok=True) |
| with open(dest, "wb") as f: |
| f.write(t.extractfile(member).read()) |
| wasm = os.path.join("vendor", "wllama", "esm", "wasm", "wllama.wasm") |
| assert os.path.isfile(wasm) and os.path.getsize(wasm) > 1_000_000, \ |
| "wllama.wasm missing after vendoring" |
| print(" ok: vendored, esm/wasm/wllama.wasm present") |
|
|
|
|
| def fetch_gguf(repo, fname, size, sha_expected): |
| url = "https://huggingface.co/" + repo + "/resolve/main/" + fname |
| dest = os.path.join(GGUF_DIR, fname) |
| pos = os.path.getsize(dest) if os.path.exists(dest) else 0 |
| if pos == size: |
| print(" already complete:", dest) |
| else: |
| if pos: |
| print(" resuming from %.2f GB ..." % (pos / 1e9)) |
| headers = {"Range": "bytes=%d-" % pos} if pos else {} |
| r = requests.get(url, stream=True, timeout=600, headers=headers) |
| if pos and r.status_code != 206: |
| print(" server does not support resume - restarting") |
| pos, r = 0, requests.get(url, stream=True, timeout=600) |
| r.raise_for_status() |
| with open(dest, "ab" if pos else "wb") as f: |
| for chunk in r.iter_content(1 << 22): |
| f.write(chunk) |
| print(" verifying sha256 ...") |
| h = hashlib.sha256() |
| with open(dest, "rb") as f: |
| for chunk in iter(lambda: f.read(1 << 22), b""): |
| h.update(chunk) |
| if h.hexdigest() != sha_expected: |
| os.remove(dest) |
| raise SystemExit("SHA256 MISMATCH for " + fname + |
| " - corrupt/partial download removed. Re-run setup.py.") |
| print(" ok: " + fname + " sha256 verified") |
|
|
|
|
| def main(): |
| args = [a.lower() for a in sys.argv[1:]] |
| want_ornith = any("ornith" in a for a in args) |
| os.makedirs(GGUF_DIR, exist_ok=True) |
| vendor_wllama() |
| picks = [] |
| if want_ornith: |
| picks.append("Ornith-1.5-9B-Q4_K_M.gguf") |
| picks.append("Qwen3-0.6B-Q8_0.gguf") |
| entries = [] |
| for fname in picks: |
| repo, size, sha = PINNED[fname] |
| print("downloading " + repo + "/" + fname + " (%.2f GB) ..." % (size / 1e9)) |
| fetch_gguf(repo, fname, size, sha) |
| entries.append({"name": fname.replace(".gguf", ""), |
| "url": "./models/gguf/" + fname, |
| "size_gb": round(size / 1e9, 2), "sha256": sha}) |
| manifest = {"engine": "wllama (llama.cpp WASM)", "models": entries} |
| with open(os.path.join("models", "models.json"), "w") as f: |
| json.dump(manifest, f, indent=2) |
| print("done. Launch serve.py and open http://localhost:8080 - fully offline from here on.") |
|
|
|
|
| if __name__ == "__main__": |
| main() |
|
|
