72 lines
2.2 KiB
Python
72 lines
2.2 KiB
Python
# ***** BEGIN GPL LICENSE BLOCK *****
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software Foundation,
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# Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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#
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# ***** END GPL LICENCE BLOCK *****
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_USE_COLOR = True
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if _USE_COLOR:
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color_codes = {
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'black': '\033[0;30m',
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'bright_gray': '\033[0;37m',
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'blue': '\033[0;34m',
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'white': '\033[1;37m',
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'green': '\033[0;32m',
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'bright_blue': '\033[1;34m',
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'cyan': '\033[0;36m',
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'bright_green': '\033[1;32m',
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'red': '\033[0;31m',
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'bright_cyan': '\033[1;36m',
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'purple': '\033[0;35m',
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'bright_red': '\033[1;31m',
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'yellow': '\033[0;33m',
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'bright_purple':'\033[1;35m',
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'dark_gray': '\033[1;30m',
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'bright_yellow':'\033[1;33m',
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'normal': '\033[0m',
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}
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def colorize(msg, color=None):
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return (color_codes[color] + msg + color_codes['normal'])
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else:
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def colorize(msg, color=None):
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return msg
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def uuid_from_file(fn, block_size=1 << 20):
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"""
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Returns an arbitrary sized unique ASCII string based on the file contents.
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(exact hashing method may change).
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"""
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with open(fn, 'rb') as f:
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# first get the size
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import os
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f.seek(0, os.SEEK_END)
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size = f.tell()
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f.seek(0, os.SEEK_SET)
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del os
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# done!
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import hashlib
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sha1 = hashlib.new('sha512')
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while True:
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data = f.read(block_size)
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if not data:
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break
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sha1.update(data)
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# skip the '0x'
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return hex(size)[2:] + sha1.hexdigest()
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