reorganization - created package

joycontrol/utils.py

@@ -0,0 +1,42 @@
+import asyncio
+import logging
+import re
+
+logger = logging.getLogger(__name__)
+
+
+def get_bit(value, n):
+    return (value >> n & 1) != 0
+
+
+def flip_bit(value, n):
+    return value ^ (1 << n)
+
+
+async def run_system_command(cmd):
+    proc = await asyncio.create_subprocess_shell(
+        cmd,
+        stdout=asyncio.subprocess.PIPE,
+        stderr=asyncio.subprocess.PIPE)
+
+    stdout, stderr = await proc.communicate()
+
+    logger.debug(f'[{cmd!r} exited with {proc.returncode}]')
+    if stdout:
+        logger.debug(f'[stdout]\n{stdout.decode()}')
+    if stderr:
+        logger.debug(f'[stderr]\n{stderr.decode()}')
+
+    return proc.returncode, stdout, stderr
+
+"""
+async def get_bt_mac_address(dev=0):
+    ret, stdout, stderr = await run_system_command(f'hciconfig hci{dev}')
+    # TODO: Process error handling
+
+    match = re.search(r'BD Address: (?P<mac>\w\w:\w\w:\w\w:\w\w:\w\w:\w\w)', stdout.decode('UTF-8'))
+    if match:
+        return list(map(lambda x: int(x, 16), match.group('mac').split(':')))
+    else:
+        raise ValueError(f'BD Address not found in "{stdout}"')
+"""