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# DeGAL - A pretty simple web image gallery

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# Copyright (C) 2007 Tero Marttila

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# http://marttila.de/~terom/degal/

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#

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# This program is free software; you can redistribute it and/or modify

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# it under the terms of the GNU General Public License as published by

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# the Free Software Foundation; either version 2 of the License, or

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# (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

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# Free Software Foundation, Inc.,

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# 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

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#

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import logging, sys

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log_level = logging.INFO

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stack = []

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class g :

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    out_depth = 0

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    node = None

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def title (title, *args) :

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    stack.append(title)

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    print "%s - %s" % (" "*g.out_depth, title % args)

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    g.out_depth += 1

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def down (dir_name, *args) :

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    stack.append(dir_name % args)

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    g.node = None

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def next (fname, *args) :

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    g.node = fname % args

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def up () :

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    stack.pop(-1)

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    g.node = None

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    g.out_depth = min(g.out_depth, len(stack))

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def done () :

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    print "done"

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def log (level, message, *args, **kwargs) :

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    wait = kwargs.get("wait", False)

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    if level >= log_level :

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        if g.out_depth != len(stack) :

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            for segment in stack[g.out_depth:] :

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                print "%sd %s" % (" "*g.out_depth, segment)

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                g.out_depth += 1

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        if g.node :

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            print "%sf %s" % (" "*g.out_depth, g.node)

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            g.node = None

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        if wait :

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            print "%s - %s..." % (" "*g.out_depth, message % args),

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            sys.stdout.flush()

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        else :

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            print "%s - %s" % (" "*g.out_depth, message % args)

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def _level (level) :

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    def _log_func (message, *args, **kwargs) :

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        log(level, message, *args, **kwargs)

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    return _log_func

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debug       = _level(logging.DEBUG)

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info        = _level(logging.INFO)

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warning     = _level(logging.WARNING)

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error       = _level(logging.ERROR)

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