Files
FacereDataset/data/raw/oshwhub/ddcc963f6e234ee5b25bdf62d13c4a6b/_urls.json
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

46 lines
1.8 KiB
JSON

{
"detail_url": "https://oshwhub.com/bryan_he/usb_dc_ps",
"cover_url": "https://image.lceda.cn/pullimage/Lrf0ZtIUAbrwgDC24lEzoJTsYs5s5klsd8n0YPay.jpeg",
"attachments": [
{
"name": "LCD-手册.pdf",
"url": "https://image.lceda.cn/attachments/2024/3/EWpEH4sOZTa52mv3e12JQri5MbCkrvYrXsy5TPBl.pdf",
"original_id": "cc1c21030b24497caf390824b488828c"
},
{
"name": "MCU-固件下载.mp4",
"url": "https://image.lceda.cn/attachments/2024/4/BjcxER2jGebgyCyJrMdYaeDjgbMhapSIE1nCwCtf.mp4",
"original_id": "176ce2712acd4727b932ad42aa7dae87"
},
{
"name": "蓝牙固件下载.mp4",
"url": "https://image.lceda.cn/attachments/2024/4/x81B348S64e6ZdgyWK3hdjLlCBJKYHU1zmRkLrkV.mp4",
"original_id": "906f76602007450f8eb1541a10a9e9ca"
},
{
"name": "设备操作演示.mp4",
"url": "https://image.lceda.cn/attachments/2024/4/EdEXZFZHiEAKi4rzXCrRWEUHqZT70CePpxDNW2wx.mp4",
"original_id": "cc47b83886d7433f9cf106ca2bb11235"
},
{
"name": "uart2ble_tools.7z",
"url": "https://image.lceda.cn/attachments/2024/4/uhB3dYov7WpxXRnIWeHrPC8nmkGRozLLnfMEBrxe.7z",
"original_id": "a0eeadb7dd29424482257676e0c27248"
},
{
"name": "亚克力-up_shell.stp",
"url": "https://image.lceda.cn/oshwhub/project/attachments/cf6eb929e472480a89be3661e7780a3b.stp",
"original_id": "84b90cb41b514b40b106fc730abf1648"
},
{
"name": "亚克力-dw_shell.stp",
"url": "https://image.lceda.cn/oshwhub/project/attachments/c44dda8d22a14c2894290a240818c4fa.stp",
"original_id": "d9561ee14ea7445eb73a31cec0c82f2b"
},
{
"name": "usb-power-supply-v2-sw-v2.3.hex",
"url": "https://image.lceda.cn/oshwhub/project/attachments/e87e7a232cdc48a39606636ab90dc5d8.hex",
"original_id": "43d0d5423a6343c2a1f921217542b964"
}
]
}