Remove the unused tc_trace logging

trace_tc (tasks/tracer.py's TracerTask wired to a generic Tracer instance)
was logging to tc_trace.mat, but its var_list was empty, so it only ever
wrote a bare tick counter - no actual tc data, despite the name. Drop the
dead plumbing and the now-unused tracer.py module entirely; the real,
populated brewpi.mat logging (sensor/heater/tc data, built directly inside
TracerTask) is untouched.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DkkuG48uHFCGKe6dPSERFk

server/brewpi.py

@@ -14,7 +14,6 @@ from components.actor import HeaterFactory, StirrerFactory
 from components.sud import Sud
 from components.sud_forecast import SudForecastEstimator
 from tasks import TaskManager, TempSensorTask, HeaterTask, PotTask, TcTask, StirrerTask, TracerTask, SudTask, SudLogTask
-from tracer import Tracer
 
 import argparse as ap
 
@@ -92,10 +91,6 @@ if __name__ == '__main__':
 	tc_task = TcTask(tc, DT_TASK, dispatcher.msgio_get("TempCtrl"))
 	taskmgr.add(tc_task)
 
-	tc_trace_vars = []
-
-	trace_tc = Tracer(tc, tc_trace_vars, name='tc_trace')
-
 	# Stirrer
 	stirrer = StirrerFactory.create(config['Controller']['stirrer_name'], DT, config['Stirrer'])
 	stirrer_task = StirrerTask(stirrer, DT_TASK, dispatcher.msgio_get("Stirrer"))
@@ -117,7 +112,7 @@ if __name__ == '__main__':
 	taskmgr.add(SudLogTask(sud, tc, heater, heater_task, sud_task, DT_TASK))
 
 	# Tracer
-	taskmgr.add(TracerTask(sensor, heater, tc, trace_tc, DT_TASK_TRACER, dispatcher.msgio_get("Tracer")))
+	taskmgr.add(TracerTask(sensor, heater, tc, DT_TASK_TRACER, dispatcher.msgio_get("Tracer")))
 
 	# Assign data flow
 	# Assign tc control value to heater

tasks/tracer.py

@@ -5,7 +5,6 @@ from ws.message import MsgIo
 from components import ATemperatureSensor
 from components import AHeater
 from components import APid
-from tracer import Tracer
 
 import numpy as np
 import scipy.io
@@ -13,7 +12,7 @@ import os
 
 
 class TracerTask(ATask):
-	def __init__(self, sensor: ATemperatureSensor, heater: AHeater, temp_ctrl: APid, tracer: Tracer, interval, msg_handler: MsgIo, path= './logs'):
+	def __init__(self, sensor: ATemperatureSensor, heater: AHeater, temp_ctrl: APid, interval, msg_handler: MsgIo, path= './logs'):
 		ATask.__init__(self, interval)
 		if not os.path.exists(path):
 			os.makedirs(path)
@@ -24,7 +23,6 @@ class TracerTask(ATask):
 		self.sensor = sensor
 		self.heater = heater
 		self.temp_ctrl = temp_ctrl
-		self.tracer = tracer
 		self.path = path
 
 	async def recv(self, data):
@@ -51,8 +49,6 @@ class TracerTask(ATask):
 		filename_full = os.path.join(self.path, '') + name + "." + time.strftime("%Y%m%d%H%M%S", time.localtime()) + ".mat"
 
 		while True:
-			self.tracer.process()
-
 			_timestamp = np.append(_timestamp, timestamp)
 			_sensor_temp = np.append(_sensor_temp, self.sensor.temperature())
 			_heater_power = np.append(_heater_power, self.heater.get_power())

tracer.py

@@ -1,71 +0,0 @@
-import numpy as np
-import scipy.io
-import os
-import sys
-import time
-if sys.version_info[0] == 3 and sys.version_info[1] >= 8:
-	from typing import TypedDict
-else:
-	from typing_extensions import TypedDict
-
-
-class Entry(TypedDict):
-	variable: str
-	name: str
-	unit: str
-
-
-class Tracer:
-	def __init__(self, obj, var_list: Entry, name='default', path='./logs'):
-		if not os.path.exists(path):
-			os.makedirs(path)
-		self.obj = obj
-		self.var_list = var_list
-		self.timestamp = 0
-		self.timestamp_data = np.empty(0)
-		self.filename_full = os.path.join(path, '') + name + "." + time.strftime("%Y%m%d%H%M%S", time.localtime()) + ".mat"
-		self.filename = os.path.join(path, '') + name + ".mat"
-		self.data_list = {}
-		for var in self.var_list:
-			self.data_list[var['name']] = np.empty(0)
-
-	def process(self):
-		data = {}
-		self.timestamp_data = np.append(self.timestamp_data, self.timestamp)
-		data['time'] = self.timestamp_data
-
-		for var in self.var_list:
-			key_name = var['name']
-			key_variable = var['variable']
-			self.data_list[key_name] = np.append(self.data_list[key_name], self.obj.__getattribute__(key_variable))
-			data[key_name] = self.data_list[key_name]
-
-		scipy.io.savemat(self.filename, data)
-		scipy.io.savemat(self.filename_full, data)
-		self.timestamp += 1
-
-
-class Test:
-	def __init__(self):
-		self.a = 0
-		self.b = 0
-
-	def process(self):
-		self.a += 1
-		self.b += 10
-
-	@staticmethod
-	def get_entry():
-		a: Entry = [{'variable': 'a', 'name' : 'v_a', 'unit': 'u_a'}]
-		b: Entry = [{'variable': 'b', 'name' : 'v_b', 'unit': 'u_b'}]
-		return a + b
-
-
-if __name__ == '__main__':
-	test = Test()
-
-	dut = Tracer(test, Test.get_entry(), name='TracerTest')
-
-	for i in range(0, 10):
-		dut.process()
-		test.process()