techrec/server/cli.py
2019-11-15 18:17:06 +01:00

126 lines
4.5 KiB
Python

import os
import sys
from argparse import ArgumentParser, Action
from datetime import datetime
import logging
logging.basicConfig(stream=sys.stdout)
logger = logging.getLogger('cli')
CWD = os.getcwd()
import forge
import maint
from config_manager import get_config
import server
def pre_check_permissions():
def is_writable(d):
return os.access(d, os.W_OK)
if is_writable(get_config()['AUDIO_INPUT']):
yield "Audio input '%s' writable" % get_config()['AUDIO_INPUT']
if not os.access(get_config()['AUDIO_INPUT'], os.R_OK):
yield "Audio input '%s' unreadable" % get_config()['AUDIO_INPUT']
sys.exit(10)
if is_writable(os.getcwd()):
yield "Code writable"
if not is_writable(get_config()['AUDIO_OUTPUT']):
yield "Audio output '%s' not writable" % get_config()['AUDIO_OUTPUT']
logger.critical("Aborting")
sys.exit(10)
def pre_check_user():
if os.geteuid() == 0:
yield "You're running as root; this is dangerous"
def pre_check_ffmpeg():
path = get_config()['FFMPEG_PATH']
if not path.startswith('/'):
yield "FFMPEG_PATH is not absolute: %s" % path
from subprocess import check_output
try:
check_output([path, '-version'])
except OSError:
yield "FFMPEG not found as " + path
else:
if not os.path.exists(path):
yield "FFMPEG not found in " + path
class DateTimeAction(Action):
def __call__(self, parser, namespace, values, option_string=None):
if len(values) == 15 or len(values) == 13:
parsed_val = datetime.strptime(values, '%Y%m%d-%H%M%S')
else:
raise ValueError("'%s' is not a valid datetime" % values)
setattr(namespace, self.dest, parsed_val)
def common_pre():
prechecks = [pre_check_user, pre_check_permissions, pre_check_ffmpeg]
configs = ['default_config.py']
if 'TECHREC_CONFIG' in os.environ:
for conf in os.environ['TECHREC_CONFIG'].split(':'):
if not conf:
continue
path = os.path.realpath(conf)
if not os.path.exists(path):
logger.warn("Configuration file '%s' does not exist; skipping"
% path)
continue
configs.append(path)
os.chdir(os.path.dirname(os.path.realpath(__file__)))
for conf in configs:
get_config().from_pyfile(conf)
for check in prechecks:
for warn in check():
logger.warn(warn)
def main():
parser = ArgumentParser(description='creates mp3 from live recordings')
parser.add_argument('--verbose', '-v', action='count',
help='Increase verbosity; can be used multiple times')
parser.add_argument('--pretend', '-p', action='store_true', default=False,
help='Only pretend; no real action will be done')
sub = parser.add_subparsers(title='main subcommands',
description='valid subcommands')
serve_p = sub.add_parser('serve', help="Start an HTTP server")
serve_p.set_defaults(func=server.main_cmd)
forge_p = sub.add_parser('forge', help="Create an audio file")
forge_p.add_argument('starttime', metavar='START',
help='Start time, espressed as 19450425_1200 (%%Y%%m%%d-%%H%%M%%S)',
action=DateTimeAction)
forge_p.add_argument('endtime', metavar='END',
help='End time, espressed as 19450425_1200 (%%Y%%m%%d-%%H%%M%%S)',
action=DateTimeAction)
forge_p.add_argument('-o', metavar='OUTFILE', dest='outfile',
default='out.mp3', help='Path of the output mp3')
forge_p.set_defaults(func=forge.main_cmd)
cleanold_p = sub.add_parser('cleanold', help="Remove old files from DB",
description="Will remove oldfiles with no filename from DB")
cleanold_p.add_argument('-t', metavar='MINAGE', dest='minage',
default='14', type=int,
help='Minimum age (in days) for removal')
cleanold_p.set_defaults(func=maint.cleanold_cmd)
options = parser.parse_args()
options.cwd = CWD
if options.verbose < 1:
logging.basicConfig(level=logging.WARNING)
elif options.verbose == 1:
logging.basicConfig(level=logging.INFO)
elif options.verbose >= 2:
logging.basicConfig(level=logging.DEBUG)
if options.verbose > 2:
logging.info("giving verbose flag >2 times is useless")
common_pre()
options.func(options)
if __name__ == "__main__":
main()