bazarr/libs/tqdm/cli.py

240 lines
7.4 KiB
Python

from .std import tqdm, TqdmTypeError, TqdmKeyError
from ._version import __version__ # NOQA
import sys
import re
import logging
__all__ = ["main"]
def cast(val, typ):
log = logging.getLogger(__name__)
log.debug((val, typ))
if " or " in typ:
for t in typ.split(" or "):
try:
return cast(val, t)
except TqdmTypeError:
pass
raise TqdmTypeError(val + ' : ' + typ)
# sys.stderr.write('\ndebug | `val:type`: `' + val + ':' + typ + '`.\n')
if typ == 'bool':
if (val == 'True') or (val == ''):
return True
elif val == 'False':
return False
else:
raise TqdmTypeError(val + ' : ' + typ)
try:
return eval(typ + '("' + val + '")')
except:
if typ == 'chr':
return chr(ord(eval('"' + val + '"')))
else:
raise TqdmTypeError(val + ' : ' + typ)
def posix_pipe(fin, fout, delim='\n', buf_size=256,
callback=lambda int: None # pragma: no cover
):
"""
Params
------
fin : file with `read(buf_size : int)` method
fout : file with `write` (and optionally `flush`) methods.
callback : function(int), e.g.: `tqdm.update`
"""
fp_write = fout.write
# tmp = ''
if not delim:
while True:
tmp = fin.read(buf_size)
# flush at EOF
if not tmp:
getattr(fout, 'flush', lambda: None)() # pragma: no cover
return
fp_write(tmp)
callback(len(tmp))
# return
buf = ''
# n = 0
while True:
tmp = fin.read(buf_size)
# flush at EOF
if not tmp:
if buf:
fp_write(buf)
callback(1 + buf.count(delim)) # n += 1 + buf.count(delim)
getattr(fout, 'flush', lambda: None)() # pragma: no cover
return # n
while True:
try:
i = tmp.index(delim)
except ValueError:
buf += tmp
break
else:
fp_write(buf + tmp[:i + len(delim)])
callback(1) # n += 1
buf = ''
tmp = tmp[i + len(delim):]
# ((opt, type), ... )
RE_OPTS = re.compile(r'\n {8}(\S+)\s{2,}:\s*([^,]+)')
# better split method assuming no positional args
RE_SHLEX = re.compile(r'\s*(?<!\S)--?([^\s=]+)(\s+|=|$)')
# TODO: add custom support for some of the following?
UNSUPPORTED_OPTS = ('iterable', 'gui', 'out', 'file')
# The 8 leading spaces are required for consistency
CLI_EXTRA_DOC = r"""
Extra CLI Options
-----------------
name : type, optional
TODO: find out why this is needed.
delim : chr, optional
Delimiting character [default: '\n']. Use '\0' for null.
N.B.: on Windows systems, Python converts '\n' to '\r\n'.
buf_size : int, optional
String buffer size in bytes [default: 256]
used when `delim` is specified.
bytes : bool, optional
If true, will count bytes, ignore `delim`, and default
`unit_scale` to True, `unit_divisor` to 1024, and `unit` to 'B'.
manpath : str, optional
Directory in which to install tqdm man pages.
comppath : str, optional
Directory in which to place tqdm completion.
log : str, optional
CRITICAL|FATAL|ERROR|WARN(ING)|[default: 'INFO']|DEBUG|NOTSET.
"""
def main(fp=sys.stderr, argv=None):
"""
Parameters (internal use only)
---------
fp : file-like object for tqdm
argv : list (default: sys.argv[1:])
"""
if argv is None:
argv = sys.argv[1:]
try:
log = argv.index('--log')
except ValueError:
for i in argv:
if i.startswith('--log='):
logLevel = i[len('--log='):]
break
else:
logLevel = 'INFO'
else:
# argv.pop(log)
# logLevel = argv.pop(log)
logLevel = argv[log + 1]
logging.basicConfig(
level=getattr(logging, logLevel),
format="%(levelname)s:%(module)s:%(lineno)d:%(message)s")
log = logging.getLogger(__name__)
d = tqdm.__init__.__doc__ + CLI_EXTRA_DOC
opt_types = dict(RE_OPTS.findall(d))
# opt_types['delim'] = 'chr'
for o in UNSUPPORTED_OPTS:
opt_types.pop(o)
log.debug(sorted(opt_types.items()))
# d = RE_OPTS.sub(r' --\1=<\1> : \2', d)
split = RE_OPTS.split(d)
opt_types_desc = zip(split[1::3], split[2::3], split[3::3])
d = ''.join('\n --{0}=<{0}> : {1}{2}'.format(*otd)
for otd in opt_types_desc if otd[0] not in UNSUPPORTED_OPTS)
d = """Usage:
tqdm [--help | options]
Options:
-h, --help Print this help and exit
-v, --version Print version and exit
""" + d.strip('\n') + '\n'
# opts = docopt(d, version=__version__)
if any(v in argv for v in ('-v', '--version')):
sys.stdout.write(__version__ + '\n')
sys.exit(0)
elif any(v in argv for v in ('-h', '--help')):
sys.stdout.write(d + '\n')
sys.exit(0)
argv = RE_SHLEX.split(' '.join(["tqdm"] + argv))
opts = dict(zip(argv[1::3], argv[3::3]))
log.debug(opts)
opts.pop('log', True)
tqdm_args = {'file': fp}
try:
for (o, v) in opts.items():
try:
tqdm_args[o] = cast(v, opt_types[o])
except KeyError as e:
raise TqdmKeyError(str(e))
log.debug('args:' + str(tqdm_args))
except:
fp.write('\nError:\nUsage:\n tqdm [--help | options]\n')
for i in sys.stdin:
sys.stdout.write(i)
raise
else:
buf_size = tqdm_args.pop('buf_size', 256)
delim = tqdm_args.pop('delim', '\n')
delim_per_char = tqdm_args.pop('bytes', False)
manpath = tqdm_args.pop('manpath', None)
comppath = tqdm_args.pop('comppath', None)
stdin = getattr(sys.stdin, 'buffer', sys.stdin)
stdout = getattr(sys.stdout, 'buffer', sys.stdout)
if manpath or comppath:
from os import path
from shutil import copyfile
from pkg_resources import resource_filename, Requirement
def cp(src, dst):
"""copies from src path to dst"""
copyfile(src, dst)
log.info("written:" + dst)
if manpath is not None:
cp(resource_filename(Requirement.parse('tqdm'), 'tqdm/tqdm.1'),
path.join(manpath, 'tqdm.1'))
if comppath is not None:
cp(resource_filename(Requirement.parse('tqdm'),
'tqdm/completion.sh'),
path.join(comppath, 'tqdm_completion.sh'))
sys.exit(0)
if delim_per_char:
tqdm_args.setdefault('unit', 'B')
tqdm_args.setdefault('unit_scale', True)
tqdm_args.setdefault('unit_divisor', 1024)
log.debug(tqdm_args)
with tqdm(**tqdm_args) as t:
posix_pipe(stdin, stdout, '', buf_size, t.update)
elif delim == '\n':
log.debug(tqdm_args)
for i in tqdm(stdin, **tqdm_args):
stdout.write(i)
else:
log.debug(tqdm_args)
with tqdm(**tqdm_args) as t:
posix_pipe(stdin, stdout, delim, buf_size, t.update)