新增美团 CPS 券定时抓取入库(北京试点),作为"销量/佣金排序"的本地数据源 (#38)
Co-authored-by: chenshuobo <1119780489@qq.com> Reviewed-on: #38
This commit was merged in pull request #38.
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@@ -22,6 +22,7 @@ import hashlib
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import os
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import re
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import sys
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import tempfile
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import time
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from datetime import datetime, timedelta, timezone
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@@ -44,7 +45,10 @@ PAGE_SIZE = 20
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MAX_PAGES = 80 # 单路安全上限(搜索 ~52 页、供给 ~70 页)
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PAGE_SLEEP = 0.35 # 页间配速,缓解 402
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RETRY = 7
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LOCK_FILE = "data/.meituan_etl.lock"
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# 运行锁默认放系统临时目录(任何账号可写),不依赖代码目录 data/ 的写权限——
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# 无 sudo 部署时 data/ 常属 root,cps 写不了会导致每轮 PermissionError、cron 抓不进数据。
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# 需要指定位置时用环境变量 MEITUAN_ETL_LOCK 覆盖。
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LOCK_FILE = os.environ.get("MEITUAN_ETL_LOCK") or os.path.join(tempfile.gettempdir(), "meituan_etl.lock")
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LOCK_STALE_SEC = 30 * 60 # 锁超过 30min 视为陈旧(进程异常退出残留),自动接管
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SOURCES = [
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@@ -288,8 +292,10 @@ def run_once(prune_hours: int = 24) -> None:
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total += up
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print(f" {src['label']:18} 抓{len(items):5} 解析{len(parsed):5} "
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f"入库{up:5} (本源去重{dup:3}) {time.time() - ts:4.0f}s")
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# 清理长期未再出现的陈旧券(美团 sign 轮换 / 券下架后的残留),默认 24h 宽限
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if prune_hours and prune_hours > 0:
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# 清理长期未再出现的陈旧券(美团 sign 轮换 / 券下架后的残留),默认 24h 宽限。
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# 护栏:仅在本轮确有入库(total>0)时才清理。美团整体故障时本轮可能 0 入库
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# (脚本不抛异常、只是抓回空),若仍照常 prune,连续故障会按 last_seen 把全表删空。
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if prune_hours and prune_hours > 0 and total > 0:
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cutoff = now - timedelta(hours=prune_hours)
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pruned = db.execute(
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delete(MeituanCoupon).where(MeituanCoupon.last_seen < cutoff)
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@@ -297,6 +303,8 @@ def run_once(prune_hours: int = 24) -> None:
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db.commit()
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if pruned:
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print(f" 清理陈旧券(>{prune_hours}h 未再出现): {pruned} 条")
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elif prune_hours and prune_hours > 0 and total == 0:
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print(" 本轮 0 入库(疑似上游故障),跳过清理以防误删全表")
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cnt = db.execute(select(func.count()).select_from(MeituanCoupon)).scalar()
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print(f"[{datetime.now():%H:%M:%S}] 本轮完成: 入库 {total} 条, 表总计 {cnt} 行, "
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f"用时 {time.time() - t0:.0f}s")
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