| |
| """Fetch Polish Wikimedia sibling projects (Wikinews/Wikivoyage/Wikibooks/Wikiquote) |
| from the official dumps into SpeakLeash-style .jsonl.zst, so build_dynaword.py |
| consumes them unchanged. All are CC-BY-SA (same basis as Wikipedia/Wikisource). |
| |
| Mainspace (ns=0) only; redirects and empty pages dropped. Wikitext -> plaintext |
| via mwparserfromhell. |
| |
| Usage: |
| python3 src/fetch_wikimedia.py --out ~/Local/Ventures/Slayer/data/speakleash \ |
| --wikis plwikinews plwikivoyage plwikibooks plwikiquote |
| """ |
| from __future__ import annotations |
| import argparse, bz2, json, subprocess, time |
| from pathlib import Path |
| from urllib.request import urlopen, Request |
| from xml.etree.ElementTree import iterparse |
| import mwparserfromhell |
|
|
| DUMP = "https://dumps.wikimedia.org/{w}/latest/{w}-latest-pages-articles.xml.bz2" |
| UA = {"User-Agent": "polish-dynaword/0.1 (+research; openly-licensed corpus)"} |
| MIN_CHARS = 200 |
| |
| SITE = { |
| "plwikinews": ("https://pl.wikinews.org/wiki/", "news"), |
| "plwikivoyage": ("https://pl.wikivoyage.org/wiki/", "travel"), |
| "plwikibooks": ("https://pl.wikibooks.org/wiki/", "howto"), |
| "plwikiquote": ("https://pl.wikiquote.org/wiki/", "quotes"), |
| } |
|
|
|
|
| def _local(tag): |
| return tag.rsplit("}", 1)[-1] |
|
|
|
|
| def download(w, cache): |
| dst = cache / f"{w}.xml.bz2" |
| if dst.exists() and dst.stat().st_size > 0: |
| print(f" cached {dst.name}"); return dst |
| url = DUMP.format(w=w) |
| print(f" downloading {url}", flush=True) |
| with urlopen(Request(url, headers=UA), timeout=120) as r, dst.open("wb") as f: |
| while chunk := r.read(1 << 20): |
| f.write(chunk) |
| return dst |
|
|
|
|
| def pages(bz2_path): |
| """Yield (title, wikitext) for mainspace, non-redirect pages.""" |
| with bz2.open(bz2_path, "rb") as fh: |
| title = ns = text = None; redirect = False |
| for ev, el in iterparse(fh, events=("end",)): |
| t = _local(el.tag) |
| if t == "title": title = el.text |
| elif t == "ns": ns = el.text |
| elif t == "redirect": redirect = True |
| elif t == "text": text = el.text |
| elif t == "page": |
| if ns == "0" and not redirect and text: |
| yield title, text |
| title = ns = text = None; redirect = False |
| el.clear() |
|
|
|
|
| def strip(wikitext): |
| try: |
| return mwparserfromhell.parse(wikitext).strip_code(normalize=True, collapse=True).strip() |
| except Exception: |
| return "" |
|
|
|
|
| def main(): |
| ap = argparse.ArgumentParser() |
| ap.add_argument("--out", default="~/Local/Ventures/Slayer/data/speakleash") |
| ap.add_argument("--wikis", nargs="+", default=list(SITE)) |
| args = ap.parse_args() |
| out_dir = Path(args.out).expanduser(); out_dir.mkdir(parents=True, exist_ok=True) |
| cache = out_dir / "_wikimedia_dumps"; cache.mkdir(exist_ok=True) |
|
|
| for w in args.wikis: |
| base_url, domain = SITE[w] |
| print(f"[{w}] ({domain})", flush=True) |
| src = download(w, cache) |
| jsonl = out_dir / f"{w}.jsonl" |
| kept = 0; t0 = time.time() |
| with jsonl.open("w", encoding="utf-8") as fo: |
| for title, wt in pages(src): |
| text = strip(wt) |
| if len(text) < MIN_CHARS: |
| continue |
| fo.write(json.dumps({ |
| "text": text, |
| "meta": {"url": base_url + (title or "").replace(" ", "_"), |
| "title": title, "wiki": w, "domain": domain}, |
| }, ensure_ascii=False) + "\n") |
| kept += 1 |
| if kept % 2000 == 0: |
| print(f" {kept:,} kept | {kept/(time.time()-t0):.0f}/s", flush=True) |
| subprocess.run(["zstd", "-19", "-f", "--rm", str(jsonl), |
| "-o", str(out_dir / f"{w}.jsonl.zst")], check=True) |
| print(f" {w}: {kept:,} docs in {round(time.time()-t0)}s -> {w}.jsonl.zst", flush=True) |
|
|
|
|
| if __name__ == "__main__": |
| main() |
|
|
