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78 lines
2.3 KiB
Python
78 lines
2.3 KiB
Python
"""
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Project: pyGTKtalog
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Description: Misc functions used more than once in src
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Type: lib
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Author: Roman 'gryf' Dobosz, gryf73@gmail.com
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Created: 2009-04-05
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"""
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import os
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import errno
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from zlib import crc32
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import pygtktalog.dbcommon
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from pygtktalog.logger import get_logger
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LOG = get_logger(__name__)
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def float_to_string(float_length):
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"""
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Parse float digit into time string
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Arguments:
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@number - digit to be converted into time.
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Returns HH:MM:SS formatted string
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"""
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hour = int(float_length / 3600)
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float_length -= hour*3600
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minutes = int(float_length / 60)
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float_length -= minutes * 60
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sec = int(float_length)
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return "%02d:%02d:%02d" % (hour, minutes, sec)
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def calculate_image_path(dbpath=None, create=False):
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"""Calculate image path out of provided path or using current connection"""
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if not dbpath:
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dbpath = pygtktalog.dbcommon.DbFilename
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if dbpath == ":memory:":
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raise OSError("Cannot create image path out of in-memory db!")
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dir_, file_ = (os.path.dirname(dbpath), os.path.basename(dbpath))
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file_base, dummy = os.path.splitext(file_)
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images_dir = os.path.join(dir_, file_base + "_images")
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else:
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if dbpath and "~" in dbpath:
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dbpath = os.path.expanduser(dbpath)
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if dbpath and "$" in dbpath:
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dbpath = os.path.expandvars(dbpath)
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images_dir = dbpath
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if create:
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if not os.path.exists(images_dir):
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try:
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os.mkdir(images_dir)
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except OSError as err:
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if err.errno != errno.EEXIST:
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raise
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elif not os.path.exists(images_dir):
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raise OSError("%s: No such directory" % images_dir)
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return os.path.abspath(images_dir)
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def mk_paths(fname, img_path):
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"""Make path for provided pathname by calculating crc32 out of file"""
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with open(fname, 'r+b') as fobj:
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new_path = "%x" % (crc32(fobj.read(10*1024*1024)) & 0xffffffff)
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new_path = [new_path[i:i + 2] for i in range(0, len(new_path), 2)]
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full_path = os.path.join(img_path, *new_path[:-1])
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try:
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os.makedirs(full_path)
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except OSError as exc:
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if exc.errno != errno.EEXIST:
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LOG.debug("Directory %s already exists." % full_path)
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return new_path
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