Knowit
c6fd111d6d
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>
59 lines
1.9 KiB
JSON
59 lines
1.9 KiB
JSON
{
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"source": "oshwhub",
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"source_url": "https://oshwhub.com/youi/P150C-Pro-D-shu-kong-dian-zi-fu-zai",
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"project_id": "c19a4fc2119f4a44860ccb55ed171e8e",
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"title": "P150C Pro-D数控电子负载 电池容量测试仪",
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"description_short": "P150C Pro-D系列直流恒流型数控电子负载是基于STC8H系列单片机为主控芯片开发而成，该产品支持±150V电压测量/15A电流测量/150W功率耗散，测量精度高达0.5%，并且支持多种测量模式",
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"description_path": "description.md",
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"author": {
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"username": "youi",
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"display_name": "cnwans",
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"user_id": "3487f85b25e8466a98c86f32e6f9315d"
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},
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"license": "GPL 3.0",
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"tags": [],
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"created_at": "2023-03-20T13:28:17.000Z",
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"updated_at": "2026-04-01T16:37:22.000Z",
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"published_at": "2025-06-26T01:41:28.000Z",
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"crawled_at": "2026-04-28T17:30:54.506725+00:00",
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"metrics": {
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"likes": 246,
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"stars": 644,
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"forks": 476,
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"views": 78354,
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"watch": 0,
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"comments": 268
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},
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"cover": {
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"url": "https://image.lceda.cn/pullimage/DiPddiHrzbLYEMB3Twl5qM0szhEeGOvojkc1X79a.jpeg",
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"path": null
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},
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"files": [
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{
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"name": "操作演示视频.mp4",
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"url": "https://image.lceda.cn/attachments/2023/3/Tz9DaCWWXcqfm8smLrYCTdFXBPsUO3znIdrQ0R38.mp4",
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"original_id": "3788f7ca68de45a8829b33700df32bc1",
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"ext": "mp4",
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"mime": "video/mp4",
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"size": 39322777,
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"md5": "870f5f22a39d39ba1548fa153c9bbc8e"
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},
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{
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"name": "挑战940W功率.mp4",
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"url": "https://image.lceda.cn/oshwhub/project/attachments/05da80981c4742088892edae49d4ec86.mp4",
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"original_id": "f44810fb07cb4974b2cdf13dd0db4a1a",
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"ext": "mp4",
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"mime": "video/mp4",
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"size": 54888698,
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"md5": "71924f16d633448ebd92846e81d9b90e"
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}
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],
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"raw_fields": {
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"path": "youi/P150C-Pro-D-shu-kong-dian-zi-fu-zai",
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"grade": 3,
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"origin": "std",
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"public": true,
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"publish": true,
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"skipped_files": []
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}
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} |