Add CodeQL for GitHub code scanning (#1548)

* Create codeql.yml

* Addressing codeql findings

effects/running_dots.py

@@ -1,43 +1,43 @@
-import hyperion, time
-
-# get options from args
-sleepTime  = float(hyperion.args.get('speed', 1.5)) * 0.005
-whiteLevel = int(hyperion.args.get('whiteLevel', 0))
-lvl        = int(hyperion.args.get('colorLevel', 220))
-
-# check value
-whiteLevel = min( whiteLevel, 254 )
-lvl        = min( lvl, 255 )
-
-if whiteLevel >= lvl:
-	lvl = 255
-
-# Initialize the led data
-ledData = bytearray()
-for i in range(hyperion.ledCount):
-	ledData += bytearray((0,0,0))
-
-runners = [
-	{ "pos":0, "step": 4, "lvl":lvl},
-	{ "pos":1, "step": 5, "lvl":lvl},
-	{ "pos":2, "step": 6, "lvl":lvl},
-	{ "pos":0, "step": 7, "lvl":lvl},
-	{ "pos":1, "step": 8, "lvl":lvl},
-	{ "pos":2, "step": 9, "lvl":lvl},
-	#{ "pos":0, "step":10, "lvl":lvl},
-	#{ "pos":1, "step":11, "lvl":lvl},
-	#{ "pos":2, "step":12, "lvl":lvl},
-]
-
-# Start the write data loop
-counter = 0
-while not hyperion.abort():
-	counter += 1
-	for r in runners:
-		if counter % r["step"] == 0:
-			ledData[r["pos"]] = whiteLevel
-			r["pos"] = (r["pos"]+3) % (hyperion.ledCount*3)
-			ledData[r["pos"]] = r["lvl"]
-
-	hyperion.setColor(ledData)
-	time.sleep(sleepTime)
+import hyperion, time
+
+# get options from args
+sleepTime  = float(hyperion.args.get('speed', 1.5)) * 0.005
+whiteLevel = int(hyperion.args.get('whiteLevel', 0))
+lvl        = int(hyperion.args.get('colorLevel', 220))
+
+# check value
+whiteLevel = min( whiteLevel, 254 )
+lvl        = min( lvl, 255 )
+
+if whiteLevel >= lvl:
+	lvl = 255
+
+# Initialize the led data
+ledData = bytearray()
+for unused in range(hyperion.ledCount):
+	ledData += bytearray((0,0,0))
+
+runners = [
+	{ "pos":0, "step": 4, "lvl":lvl},
+	{ "pos":1, "step": 5, "lvl":lvl},
+	{ "pos":2, "step": 6, "lvl":lvl},
+	{ "pos":0, "step": 7, "lvl":lvl},
+	{ "pos":1, "step": 8, "lvl":lvl},
+	{ "pos":2, "step": 9, "lvl":lvl},
+	#{ "pos":0, "step":10, "lvl":lvl},
+	#{ "pos":1, "step":11, "lvl":lvl},
+	#{ "pos":2, "step":12, "lvl":lvl},
+]
+
+# Start the write data loop
+counter = 0
+while not hyperion.abort():
+	counter += 1
+	for r in runners:
+		if counter % r["step"] == 0:
+			ledData[r["pos"]] = whiteLevel
+			r["pos"] = (r["pos"]+3) % (hyperion.ledCount*3)
+			ledData[r["pos"]] = r["lvl"]
+
+	hyperion.setColor(ledData)
+	time.sleep(sleepTime)