Better CLI

README.md

@@ -2,8 +2,7 @@
 
 Pulses is a python module to drive LEDs on RPi using PWM (Pulse Width Modulation)
 
-
-### INSTALL
+### BUILD
 
 1. Clone the repo
 

pulses-cli.py

@@ -0,0 +1,15 @@
+#! /usr/bin/env python3
+# -*- coding: utf-8 -*-
+# vim:fenc=utf-8
+#
+# Copyright © 2023 andre <andrea@mistrali.pw>
+#
+# Distributed under terms of the MIT license.
+
+"""
+
+"""
+
+from pulses import cli
+
+cli.main()

pulses/cli.py

@@ -7,9 +7,9 @@ Usage:
 
 Options:
     -g --gpio=<gpio>         GPIO to use [default: 12]
-    -i --initial=<method>    Initial method
+    -i --initial=<method>    Initial method [default: linear]
     -l --loop=<method>       Loop method [default: sin]
-    -f --final=<method>      Final method
+    -f --final=<method>      Final method [default: linear]
     -d --delay=<method>      Delay method [default: constant]
 
     -m --min=<min>           Minimum value [default: 2]
@@ -34,11 +34,16 @@ logging.basicConfig(format="%(name)s %(msg)s", stream=sys.stdout)
 
 
 def signal_handler(sig, frame):
-    print('bailing out...')
+    print('stopping pulse...', end="", flush=True)
+    led.stop()
+    led.join()
+    print('done.\nBailing out')
     sys.exit(0)
 
 
 def main():
+    global led
+
     args = docopt(__doc__, version=f'pulses {VERSION}')
     signal.signal(signal.SIGINT, signal_handler)
 
@@ -48,9 +53,21 @@ def main():
         log.setLevel('DEBUG')
         log.info('setting verbose mode')
 
+    led = ledPulse(int(args.get('--gpio')))
+
     params = {}
-    for method in ['initial', 'loop', 'final', 'delay']:
-        params[f"{method}Method"] = args.get(f"--{method}")
+    for method in ['initial', 'loop', 'final']:
+        methodName = args.get(f"--{method}")
+        if methodName not in led.valueMethods:
+            print(f"error: no value method '{methodName}' defined")
+            sys.exit(1)
+        params[f"{method}Method"] = methodName
+
+    methodName = args.get("--delay")
+    if methodName not in led.delayMethods:
+        print(f"error: no delay method '{methodName}' defined")
+        sys.exit(1)
+    params['delayMethod'] = methodName
 
     params['min'] = int(args.get('--min'))
     params['max'] = int(args.get('--max'))
@@ -62,7 +79,6 @@ def main():
     print("\n> loop parameters")
     for param, value in params.items():
         print(f"  {param}: {value}")
-    led = ledPulse(int(args.get('--gpio')))
     led.set(**params)
     print('\nstarting loop, press Ctrl-C to stop...')
     led.start()