Files
Knowit c6fd111d6d crawler: --no-cover, --concurrency, drop cross-host sleep + batch-50 Step 1 done
Three crawler ergonomics for batch operations:

--no-cover  Skip cover image download. For scan-only modes (license/meta
            scrape) this drops ~1.3s/project and avoids slow-CDN hangs.

--concurrency N  ThreadPoolExecutor wrapping the per-project loop. Default
                 1 = serial (current behavior). Anonymous endpoints tolerate
                 5+ comfortably; output uses a print lock for readable
                 interleaved progress. fetch_cover plumbs through crawl_one.

Drop cross-host sleep #1: in crawl_one between detail HTML (oshwhub.com)
and cover image (image.lceda.cn). Different hosts — sleep was unnecessary.
Saves ~1s/project. Sleep #2 (post-cover, before next iteration) stays — it
gates the next oshwhub.com hit.

download_to gains max_seconds wall budget (default 60s, cover uses 15s).
Defends against pathologically slow CDN connections — observed 10 KB/s
on image.lceda.cn for one project, would have hung 6+ min on a 3.6 MB
cover otherwise. httpx default timeout resets per chunk, so streaming
downloads need an external wall-clock guard.

batch-50 Step 1 (license/meta scrape) shipped:
  50/50 candidates have metadata.json + license recorded
  License distribution: GPL 3.0 32, Public Domain 6, NC variants 8,
                        CERN-OHL 1, MIT 1, CC BY 3.0 1
  Forge-friendly (non-NC): 41/50 (82%)
  Declared attachments: 180 files / 2.36 GB (median 18 MB/proj, max 304 MB)
  Walltime: 3min 26s for 28 projects at concurrency=5 (server-side
            HTML render bound, not sleep-bound)

One orphan partial cover (a670e60a...) cleaned up — leftover from the
first aborted run before the timeout fix landed.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-29 01:35:11 +08:00

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JSON

{
"detail_url": "https://oshwhub.com/logicworld/h6_board",
"cover_url": "https://image.lceda.cn/pullimage/UZTlVGjHIwdTBM7U8a8MdYdS6STOC7WwmBpuVb6J.jpeg",
"attachments": [
{
"name": "DragonHDV1.7.7.rar",
"url": "https://image.lceda.cn/attachments/2023/2/SIV1i7lcm2Kv2p0Pk5JsruEk0YuNW6WsJLdlQTu2.rar",
"original_id": "298483d9407c4f50923fab5a1ca3b30d"
},
{
"name": "PhoenixInstall.zip",
"url": "https://image.lceda.cn/attachments/2023/2/yJyXOAeuuNuj5hpE0eTlgmZ7VlksTQiEzD6rNcXA.zip",
"original_id": "6ce9943e6a014c4a90c5e3303830c3f6"
},
{
"name": "VID_20230226_005335_音乐播放.mp4",
"url": "https://image.lceda.cn/attachments/2023/2/nPqrMOKDAMpaaCTNdKB60VeWpyd9Rg4EIB0kepQZ.mp4",
"original_id": "a2507f7d8e7e4f209d9988443f7a49a3"
},
{
"name": "VID_20230226_032216_3D测试.mp4",
"url": "https://image.lceda.cn/attachments/2023/2/RkVfx9191D4eTxvKW9Hb3LeNSFS3tttHBR2r49OT.mp4",
"original_id": "8e10973248664574b87d95d0f3d82d9f"
}
]
}