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