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>
50 lines
1.5 KiB
JSON
50 lines
1.5 KiB
JSON
{
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"source": "oshwhub",
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"source_url": "https://oshwhub.com/45coll/zi-ping-heng-di-lai-luo-san-jiao_10-10-ban-ben",
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"project_id": "201d355452dc48d988f0ddbd981a8a4d",
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"title": "自平衡的莱洛三角_esp32_可充电_10*10版本",
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"description_short": "esp32作为主控，5V充3串锂电池，可实现摇摆自平衡。",
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"description_path": "description.md",
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"author": {
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"username": "45coll",
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"display_name": "45coll",
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"user_id": "580e8f5f47ef40be8cf8b3b09b3a14f5"
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},
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"license": "GPL 3.0",
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"tags": [],
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"created_at": "2021-09-28T01:21:48.000Z",
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"updated_at": "2026-03-11T09:15:59.000Z",
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"published_at": "2022-07-21T05:23:04.000Z",
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"crawled_at": "2026-04-28T17:27:41.943262+00:00",
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"metrics": {
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"likes": 653,
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"stars": 1351,
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"forks": 535,
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"views": 171592,
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"watch": 0,
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"comments": 178
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},
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"cover": {
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"url": "https://image.lceda.cn/avatars/2021/11/SkYmC62QJJtGJDvetpAcBmMfeBoVNrbMLB0I8Ocn.png",
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"path": null
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},
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"files": [
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{
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"name": "演示视频.mp4",
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"url": "https://image.lceda.cn/attachments/2021/11/dyjLDpRavK2NoVUmmmP7deRG6CJnSCnaoJ3wcp24.mp4",
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"original_id": "5ea95e588a43449096ac329c4586c439",
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"ext": "mp4",
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"mime": "video/mp4",
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"size": 31444585,
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"md5": "bdc5a31f194291453a383cd388961b88"
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}
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],
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"raw_fields": {
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"path": "45coll/zi-ping-heng-di-lai-luo-san-jiao_10-10-ban-ben",
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"grade": 4,
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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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} |