fix: Enable debug logging in send_discord_message for better memory tracking
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79445bf879
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@ -30,12 +30,14 @@ def _escape_json_str(s: str) -> str:
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def send_discord_message(message, username="Auto Garden Bot", is_alert=False, debug: bool = False):
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"""
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Send Discord message with aggressive GC and low-memory guard to avoid ENOMEM.
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When debug=True prints mem_free at important steps so you can see peak usage.
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Returns True on success, False otherwise.
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"""
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global _NEXT_ALLOWED_SEND_TS
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resp = None
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url = _get_webhook_url(is_alert=is_alert)
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if not url:
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if debug: print("DBG: no webhook URL configured")
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return False
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# Respect cooldown if we recently saw ENOMEM
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@ -43,94 +45,82 @@ def send_discord_message(message, username="Auto Garden Bot", is_alert=False, de
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import time # type: ignore
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now = time.time()
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if _NEXT_ALLOWED_SEND_TS and now < _NEXT_ALLOWED_SEND_TS:
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if debug: print("DBG: backing off until", _NEXT_ALLOWED_SEND_TS)
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return False
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except:
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pass
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try:
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# 1) Free heap before TLS
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# Lightweight local imports and GC
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import gc # type: ignore
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gc.collect()
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gc.collect() # run twice as a precaution
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if debug:
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try:
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print("DBG: mem after gc:", gc.mem_free() // 1024, "KB")
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except:
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pass
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import time # type: ignore
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# 1b) quick mem check - avoid importing urequests/TLS when too low
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try:
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gc.collect(); gc.collect()
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if debug:
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try: print("DBG: mem after gc:", gc.mem_free() // 1024, "KB")
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except: pass
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# Quick mem check before importing urequests/SSL
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mem = getattr(gc, "mem_free", lambda: None)()
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if debug:
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try:
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print("DBG: mem before import check:", (mem or 0) // 1024, "KB")
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except:
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pass
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# lower threshold to match this board's free heap (~100 KB observed)
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if mem is not None and mem < 90000:
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if debug: print("DBG: skipping send (mem low)")
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return False
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except:
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pass
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try: print("DBG: mem before import check:", (mem or 0) // 1024, "KB")
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except: pass
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# Conservative threshold — adjust as needed
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if mem is not None and mem < 90000:
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if debug: print("DBG: skip send (low mem)")
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return False
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# Import urequests only when we plan to send
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try:
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# 2) Import urequests locally (keeps RAM free when idle)
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if debug: print("DBG: importing urequests...")
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import urequests as requests # type: ignore
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# import here to measure allocation impact
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if debug:
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print("DBG: importing urequests...")
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except Exception as e:
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# import likely failed due to ENOMEM or missing module; back off
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# do not spam full exception text to conserve heap and serial output
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# Back off when import fails (likely low-memory)
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try:
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import time # type: ignore
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_NEXT_ALLOWED_SEND_TS = time.time() + 60
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except:
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pass
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if debug: print("DBG: urequests import failed:", e)
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print("Discord webhook import failed (backing off)")
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return False
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gc.collect() # collect again after import to reduce fragmentation
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gc.collect()
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if debug:
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try:
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print("DBG: mem after import:", gc.mem_free() // 1024, "KB")
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except:
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pass
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try: print("DBG: mem after import:", gc.mem_free() // 1024, "KB")
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except: pass
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# 3) Keep payload tiny
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# Build tiny payload
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url = str(url).strip().strip('\'"')
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content = _escape_json_str(str(message)[:140]) # trim further
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content = _escape_json_str(str(message)[:140])
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user = _escape_json_str(str(username)[:32])
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body_bytes = ('{"content":"%s","username":"%s"}' % (content, user)).encode("utf-8")
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# Minimal headers to reduce allocations
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headers = {"Content-Type": "application/json"}
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# 4) Send
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if debug:
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try:
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print("DBG: mem before post:", gc.mem_free() // 1024, "KB")
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except:
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pass
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try: print("DBG: mem before post:", gc.mem_free() // 1024, "KB")
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except: pass
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resp = requests.post(url, data=body_bytes, headers=headers)
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if debug:
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try:
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print("DBG: mem after post:", gc.mem_free() // 1024, "KB", "status:", getattr(resp, "status", None))
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except:
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pass
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try: print("DBG: mem after post:", gc.mem_free() // 1024, "KB", "status:", getattr(resp, "status", None))
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except: pass
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status = getattr(resp, "status", getattr(resp, "status_code", None))
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return bool(status and 200 <= status < 300)
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except Exception as e:
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# On ENOMEM/MemoryError, back off for longer to avoid repeated failures
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# On ENOMEM/MemoryError back off
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try:
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if ("ENOMEM" in str(e)) or isinstance(e, MemoryError):
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import time # type: ignore
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_NEXT_ALLOWED_SEND_TS = time.time() + 60
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except:
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pass
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# print concise message only
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if debug:
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try: print("DBG: exception in send:", e)
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except: pass
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print("Discord webhook exception (backing off)")
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return False
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@ -140,18 +130,15 @@ def send_discord_message(message, username="Auto Garden Bot", is_alert=False, de
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resp.close()
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except:
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pass
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# Free refs and force GC
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try:
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# only delete names if they exist
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if 'resp' in locals():
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del resp
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if 'body_bytes' in locals():
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del body_bytes
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if 'requests' in locals():
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del requests
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# remove large refs and force GC
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if 'resp' in locals(): del resp
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if 'body_bytes' in locals(): del body_bytes
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if 'requests' in locals(): del requests
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except:
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pass
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try:
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gc.collect()
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import gc as _gc # type: ignore
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_gc.collect()
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except:
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pass
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2
main.py
2
main.py
@ -411,7 +411,7 @@ while True:
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mem_ok = getattr(_gc, 'mem_free', lambda: 0)() > 90000
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if mem_ok:
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try:
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ok = discord_webhook.send_discord_message(pending_discord_message)
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ok = discord_webhook.send_discord_message(pending_discord_message, debug=True)
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if ok:
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print("Discord startup notification sent")
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discord_sent = True
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