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3262b6e705
commit edfbd41200a854f0bb7bb99f8bb70af9dbb9b8e0
Author: Matt Weidner <matt.weidner@gmail.com>
Date: Tue Jul 25 01:19:53 2017 -0500
Extended view.load test to check for unhandled IOError exception.
commit a523b534bc59ea97ed1fd5a3e6f78112fee19b6f
Author: requires.io <support@requires.io>
Date: Mon Jul 24 21:25:04 2017 +0200
[requires.io] dependency update
commit c725540c6eb92c003616b649ba43bee1f14e56ac
Author: Thomas Kriechbaumer <thomas@kriechbaumer.name>
Date: Mon Jul 24 21:01:25 2017 +0200
update travis
commit eeb6cfb4c76e60ac1813b839f589cd489c041c6c
Author: Thomas Kriechbaumer <Kriechi@users.noreply.github.com>
Date: Mon Jul 24 21:03:14 2017 +0200
[requires.io] dependency update on master branch (#2435)
commit 51a2672c782ee8ba8c7d5c7116073feccb4d8430
Author: Maximilian Hils <git@maximilianhils.com>
Date: Mon Jul 24 19:03:01 2017 +0200
require latest mypy version (refs #2452)
commit 5685a4850af6edda7100cae900487955c8b7a3ab
Author: Maximilian Hils <git@maximilianhils.com>
Date: Fri Jul 21 11:24:42 2017 +0200
fix addon tracebacks
`.tb_next` discards the first interesting frame,
this shouldn't happen.
commit a2da9b6c02030293f3a412d16df819868c581a29
Author: Matt Weidner <matt.weidner@gmail.com>
Date: Sat Jul 22 12:30:15 2017 -0500
Added os.path.expanduser() before open() calls with user supplied paths
commit 05db6e32c7957f267e97c34aa8f5a3cd6cb7dbb2
Author: Matt Weidner <matt.weidner@gmail.com>
Date: Fri Jul 21 16:25:16 2017 -0500
Added support for the ~ path shortcut when loading flows from disk.
for consistency. Saving flows supports using paths with the ~ shortcut.
commit b7f864b6bbd221093aeb1c384dd16038f490441a
Author: Matt Weidner <matt.weidner@gmail.com>
Date: Fri Jul 21 16:06:38 2017 -0500
Fixed crash when loading flows from a file that does not exist
94 lines
2.4 KiB
Python
94 lines
2.4 KiB
Python
import os
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import string
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import random
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import mmap
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import sys
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DATATYPES = dict(
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ascii_letters=string.ascii_letters.encode(),
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ascii_lowercase=string.ascii_lowercase.encode(),
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ascii_uppercase=string.ascii_uppercase.encode(),
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digits=string.digits.encode(),
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hexdigits=string.hexdigits.encode(),
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octdigits=string.octdigits.encode(),
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punctuation=string.punctuation.encode(),
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whitespace=string.whitespace.encode(),
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ascii=string.printable.encode(),
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bytes=bytes(range(256))
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)
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class TransformGenerator:
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"""
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Perform a byte-by-byte transform another generator - that is, for each
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input byte, the transformation must produce one output byte.
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gen: A generator to wrap
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transform: A function (offset, data) -> transformed
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"""
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def __init__(self, gen, transform):
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self.gen = gen
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self.transform = transform
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def __len__(self):
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return len(self.gen)
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def __getitem__(self, x):
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d = self.gen.__getitem__(x)
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if isinstance(x, slice):
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return self.transform(x.start, d)
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return self.transform(x, d)
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def __repr__(self):
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return "'transform(%s)'" % self.gen
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def rand_byte(chars):
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"""
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Return a random character as byte from a charset.
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"""
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# bytearray has consistent behaviour on both Python 2 and 3
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# while bytes does not
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return bytes([random.choice(chars)])
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class RandomGenerator:
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def __init__(self, dtype, length):
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self.dtype = dtype
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self.length = length
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def __len__(self):
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return self.length
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def __getitem__(self, x):
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chars = DATATYPES[self.dtype]
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if isinstance(x, slice):
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return b"".join(rand_byte(chars) for _ in range(*x.indices(min(self.length, sys.maxsize))))
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return rand_byte(chars)
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def __repr__(self):
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return "%s random from %s" % (self.length, self.dtype)
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class FileGenerator:
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def __init__(self, path):
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self.path = os.path.expanduser(path)
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def __len__(self):
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return os.path.getsize(self.path)
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def __getitem__(self, x):
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with open(self.path, mode="rb") as f:
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if isinstance(x, slice):
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with mmap.mmap(f.fileno(), 0, access=mmap.ACCESS_READ) as mapped:
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return mapped.__getitem__(x)
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else:
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f.seek(x)
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return f.read(1)
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def __repr__(self):
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return "<%s" % self.path
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