Vadim Yanitskiy has uploaded this change for review. ( 
https://gerrit.osmocom.org/12187


Change subject: trx_toolkit/burst_gen.py: migrate from getopt to argparse
......................................................................

trx_toolkit/burst_gen.py: migrate from getopt to argparse

Change-Id: I7eb3f2e2713f1f97293bd47a2eae3b140f63fb59
---
M src/target/trx_toolkit/burst_gen.py
1 file changed, 83 insertions(+), 140 deletions(-)



  git pull ssh://gerrit.osmocom.org:29418/osmocom-bb refs/changes/87/12187/1

diff --git a/src/target/trx_toolkit/burst_gen.py 
b/src/target/trx_toolkit/burst_gen.py
index 0268da9..7625a27 100755
--- a/src/target/trx_toolkit/burst_gen.py
+++ b/src/target/trx_toolkit/burst_gen.py
@@ -28,7 +28,7 @@

 import logging as log
 import signal
-import getopt
+import argparse
 import sys

 from rand_burst_gen import RandBurstGen
@@ -38,29 +38,9 @@
 from data_msg import *

 class Application:
-       # Application variables
-       remote_addr = "127.0.0.1"
-       bind_addr = "0.0.0.0"
-       base_port = 5700
-       conn_mode = "TRX"
-       output_file = None
-
-       burst_type = None
-       burst_count = 1
-
-       # Common header fields
-       fn = None
-       tn = None
-
-       # Message specific header fields
-       toa256 = None
-       rssi = None
-       pwr = None
-
        def __init__(self):
                print_copyright(CR_HOLDERS)
-               self.parse_argv()
-               self.check_argv()
+               self.argv = self.parse_argv()

                # Set up signal handlers
                signal.signal(signal.SIGINT, self.sig_handler)
@@ -70,32 +50,35 @@
                        format = "[%(levelname)s] %(filename)s:%(lineno)d 
%(message)s")

                # Open requested capture file
-               if self.output_file is not None:
-                       self.ddf = DATADumpFile(self.output_file)
+               if self.argv.output_file is not None:
+                       self.ddf = DATADumpFile(self.argv.output_file)

        def run(self):
                # Init DATA interface with TRX or L1
-               if self.conn_mode == "TRX":
-                       self.data_if = DATAInterface(self.remote_addr, 
self.base_port + 2,
-                               self.bind_addr, self.base_port + 102)
-               elif self.conn_mode == "L1":
-                       self.data_if = DATAInterface(self.remote_addr, 
self.base_port + 102,
-                               self.bind_addr, self.base_port + 2)
+               if self.argv.conn_mode == "TRX":
+                       self.data_if = DATAInterface(
+                               self.argv.remote_addr, self.argv.base_port + 2,
+                               self.argv.bind_addr, self.argv.base_port + 102)
+               elif self.argv.conn_mode == "L1":
+                       self.data_if = DATAInterface(
+                               self.argv.remote_addr, self.argv.base_port + 
102,
+                               self.argv.bind_addr, self.argv.base_port + 2)

                # Init random burst generator
                burst_gen = RandBurstGen()

                # Init an empty DATA message
-               if self.conn_mode == "TRX":
+               if self.argv.conn_mode == "TRX":
                        msg = DATAMSG_L12TRX()
-               elif self.conn_mode == "L1":
+               elif self.argv.conn_mode == "L1":
                        msg = DATAMSG_TRX2L1()

                # Generate a random frame number or use provided one
-               fn_init = msg.rand_fn() if self.fn is None else self.fn
+               fn_init = msg.rand_fn() if self.argv.tdma_fn is None \
+                       else self.argv.tdma_fn

                # Send as much bursts as required
-               for i in range(self.burst_count):
+               for i in range(self.argv.burst_count):
                        # Randomize the message header
                        msg.rand_hdr()

@@ -103,145 +86,105 @@
                        msg.fn = (fn_init + i) % GSM_HYPERFRAME

                        # Set timeslot number
-                       if self.tn is not None:
-                               msg.tn = self.tn
+                       if self.argv.tdma_tn is not None:
+                               msg.tn = self.argv.tdma_tn

                        # Set transmit power level
-                       if self.pwr is not None:
-                               msg.pwr = self.pwr
+                       if self.argv.pwr is not None:
+                               msg.pwr = self.argv.pwr

                        # Set time of arrival
-                       if self.toa256 is not None:
-                               msg.toa256 = self.toa256
+                       if self.argv.toa is not None:
+                               msg.toa256 = int(float(self.argv.toa) * 256.0 + 
0.5)
+                       elif self.argv.toa256 is not None:
+                               msg.toa256 = self.argv.toa256

                        # Set RSSI
-                       if self.rssi is not None:
-                               msg.rssi = self.rssi
+                       if self.argv.rssi is not None:
+                               msg.rssi = self.argv.rssi

                        # Generate a random burst
-                       if self.burst_type == "NB":
+                       if self.argv.burst_type == "NB":
                                burst = burst_gen.gen_nb()
-                       elif self.burst_type == "FB":
+                       elif self.argv.burst_type == "FB":
                                burst = burst_gen.gen_fb()
-                       elif self.burst_type == "SB":
+                       elif self.argv.burst_type == "SB":
                                burst = burst_gen.gen_sb()
-                       elif self.burst_type == "AB":
+                       elif self.argv.burst_type == "AB":
                                burst = burst_gen.gen_ab()

                        # Convert to soft-bits in case of TRX -> L1 message
-                       if self.conn_mode == "L1":
+                       if self.argv.conn_mode == "L1":
                                burst = msg.ubit2sbit(burst)

                        # Set burst
                        msg.burst = burst

                        log.info("Sending %d/%d %s burst %s to %s..."
-                               % (i + 1, self.burst_count, self.burst_type,
-                                       msg.desc_hdr(), self.conn_mode))
+                               % (i + 1, self.argv.burst_count, 
self.argv.burst_type,
+                                       msg.desc_hdr(), self.argv.conn_mode))

                        # Send message
                        self.data_if.send_msg(msg)

                        # Append a new message to the capture
-                       if self.output_file is not None:
+                       if self.argv.output_file is not None:
                                self.ddf.append_msg(msg)

-       def print_help(self, msg = None):
-               s  = " Usage: " + sys.argv[0] + " [options]\n\n" \
-                        " Some help...\n" \
-                        "  -h --help           this text\n\n"
-
-               s += " TRX interface specific\n" \
-                        "  -o --output-file    Write bursts to a capture 
file\n"        \
-                        "  -m --conn-mode      Send bursts to: TRX (default) / 
L1\n"    \
-                        "  -r --remote-addr    Set remote address (default 
%s)\n"       \
-                        "  -b --bind-addr      Set local address (default 
%s)\n"        \
-                        "  -p --base-port      Set base port number (default 
%d)\n\n"
-
-               s += " Burst generation\n" \
-                        "  -B --burst-type     Random burst type (NB, FB, SB, 
AB)\n"    \
-                        "  -c --burst-count    How much bursts to send 
(default 1)\n"   \
-                        "  -f --frame-number   Set frame number (default 
random)\n"     \
-                        "  -t --timeslot       Set timeslot index (default 
random)\n"   \
-                        "     --pwr            Set power level (default 
random)\n"      \
-                        "     --rssi           Set RSSI (default random)\n"    
         \
-                        "     --toa            Set ToA in symbols (default 
random)\n"   \
-                        "     --toa256         Set ToA in 1/256 symbol 
periods\n"
-
-               print(s % (self.remote_addr, self.bind_addr, self.base_port))
-
-               if msg is not None:
-                       print(msg)
-
        def parse_argv(self):
-               try:
-                       opts, args = getopt.getopt(sys.argv[1:],
-                               "o:m:r:b:p:B:c:f:t:h",
-                               [
-                                       "help",
-                                       "output-file="
-                                       "conn-mode=",
-                                       "remote-addr=",
-                                       "bind-addr=",
-                                       "base-port=",
-                                       "burst-type=",
-                                       "burst-count=",
-                                       "frame-number=",
-                                       "timeslot=",
-                                       "rssi=",
-                                       "toa=",
-                                       "toa256=",
-                                       "pwr=",
-                               ])
-               except getopt.GetoptError as err:
-                       self.print_help("[!] " + str(err))
-                       sys.exit(2)
+               parser = argparse.ArgumentParser(prog = "burst_gen",
+                       description = "Auxiliary tool to generate and send 
random bursts")

-               for o, v in opts:
-                       if o in ("-h", "--help"):
-                               self.print_help()
-                               sys.exit(2)
+               trx_group = parser.add_argument_group("TRX interface")
+               trx_group.add_argument("-r", "--remote-addr",
+                       dest = "remote_addr", type = str, default = "127.0.0.1",
+                       help = "Set remote address (default %(default)s)")
+               trx_group.add_argument("-b", "--bind-addr",
+                       dest = "bind_addr", type = str, default = "0.0.0.0",
+                       help = "Set bind address (default %(default)s)")
+               trx_group.add_argument("-p", "--base-port",
+                       dest = "base_port", type = int, default = 6700,
+                       help = "Set base port number (default %(default)s)")
+               trx_group.add_argument("-m", "--conn-mode",
+                       dest = "conn_mode", type = str,
+                       choices = ["TRX", "L1"], default = "TRX",
+                       help = "Where to send bursts (default %(default)s)")
+               trx_group.add_argument("-o", "--output-file",
+                       dest = "output_file", type = str,
+                       help = "Write bursts to a capture file")

-                       elif o in ("-o", "--output-file"):
-                               self.output_file = v
-                       elif o in ("-m", "--conn-mode"):
-                               self.conn_mode = v
-                       elif o in ("-r", "--remote-addr"):
-                               self.remote_addr = v
-                       elif o in ("-b", "--bind-addr"):
-                               self.bind_addr = v
-                       elif o in ("-p", "--base-port"):
-                               self.base_port = int(v)
+               bg_group = parser.add_argument_group("Burst generation")
+               bg_group.add_argument("-B", "--burst-type",
+                       dest = "burst_type", type = str,
+                       choices = ["NB", "FB", "SB", "AB"], default = "NB",
+                       help = "Random burst type (default %(default)s)")
+               bg_group.add_argument("-c", "--burst-count", metavar = "N",
+                       dest = "burst_count", type = int, default = 1,
+                       help = "How many bursts to send (default %(default)s)")
+               bg_group.add_argument("-f", "--frame-number", metavar = "FN",
+                       dest = "tdma_fn", type = int,
+                       help = "Set TDMA frame number (default random)")
+               bg_group.add_argument("-t", "--timeslot", metavar = "TN",
+                       dest = "tdma_tn", type = int, choices = range(0, 8),
+                       help = "Set TDMA timeslot (default random)")

-                       elif o in ("-B", "--burst-type"):
-                               self.burst_type = v
-                       elif o in ("-c", "--burst-count"):
-                               self.burst_count = int(v)
-                       elif o in ("-f", "--frame-number"):
-                               self.fn = int(v)
-                       elif o in ("-t", "--timeslot"):
-                               self.tn = int(v)
+               bg_pwr_group = bg_group.add_mutually_exclusive_group()
+               bg_pwr_group.add_argument("--pwr", metavar = "dBm",
+                       dest = "pwr", type = int,
+                       help = "Set power level (default random)")
+               bg_pwr_group.add_argument("--rssi", metavar = "dBm",
+                       dest = "rssi", type = int,
+                       help = "Set RSSI (default random)")

-                       # Message specific header fields
-                       elif o == "--pwr":
-                               self.pwr = int(v)
-                       elif o == "--rssi":
-                               self.rssi = int(v)
-                       elif o == "--toa256":
-                               self.toa256 = int(v)
-                       elif o == "--toa":
-                               self.toa256 = int(float(v) * 256.0 + 0.5)
+               bg_toa_group = bg_group.add_mutually_exclusive_group()
+               bg_toa_group.add_argument("--toa",
+                       dest = "toa", type = int,
+                       help = "Set Timing of Arrival in symbols (default 
random)")
+               bg_toa_group.add_argument("--toa256",
+                       dest = "toa256", type = int,
+                       help = "Set Timing of Arrival in 1/256 symbol periods")
 
-       def check_argv(self):
-               # Check connection mode
-               if self.conn_mode not in ("TRX", "L1"):
-                       self.print_help("[!] Unknown connection type")
-                       sys.exit(2)
-
-               # Check connection mode
-               if self.burst_type not in ("NB", "FB", "SB", "AB"):
-                       self.print_help("[!] Unknown burst type")
-                       sys.exit(2)
+               return parser.parse_args()

        def sig_handler(self, signum, frame):
                log.info("Signal %d received" % signum)

--
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Gerrit-Project: osmocom-bb
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: I7eb3f2e2713f1f97293bd47a2eae3b140f63fb59
Gerrit-Change-Number: 12187
Gerrit-PatchSet: 1
Gerrit-Owner: Vadim Yanitskiy <[email protected]>

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