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svg_and_media_zip_output.py

#! /usr/bin/env python
"""
svg_and_media_zip_output.py
An extention which collects all images to the documents directory and
creates a zip archive containing all images and the document

Copyright (C) 2005 Pim Snel, pim@lingewoud.com
Copyright (C) 2008 Aaron Spike, aaron@ekips.org
this is  the first Python script  ever created
its based on embedimage.py

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

Version 0.5 (Nicolas Dufour, nicoduf@yahoo.fr)
    Fix a bug related to special caracters in the path (LP #456248).

TODO
- fix bug: not saving existing .zip after a Collect for Output is run
     this bug occurs because after running an effect extention the inkscape:output_extension is reset to svg.inkscape
     the file name is still xxx.zip. after saving again the file xxx.zip is written with a plain .svg which
     looks like a corrupt zip
- maybe add better extention
- consider switching to lzma in order to allow cross platform compression with no encoding problem...
"""

import inkex
import urlparse
import urllib
import os, os.path
import string
import zipfile
import shutil
import sys
import tempfile
import gettext
_ = gettext.gettext

00050 class SVG_and_Media_ZIP_Output(inkex.Effect):
    def __init__(self):
        inkex.Effect.__init__(self)
        if os.name == 'nt':
            self.encoding = "cp437"
        else:
            self.encoding = "latin-1"     

00058     def output(self):
        out = open(self.zip_file,'rb')
        if os.name == 'nt':
            try:
                import msvcrt
                msvcrt.setmode(1, os.O_BINARY)
            except:
                pass
        sys.stdout.write(out.read())
        out.close()
        self.clear_tmp()

    def clear_tmp(self):
        shutil.rmtree(self.tmp_dir)

    def effect(self):
        ttmp_orig = self.document.getroot()

        docname = ttmp_orig.get(inkex.addNS('docname',u'sodipodi'))
        if docname is None: docname = self.args[-1]

        #create os temp dir
        self.tmp_dir = tempfile.mkdtemp()

        #fixme replace whatever extention
        docstripped = docname.replace('.zip', '')
        docstripped = docstripped.replace('.svg', '')
        docstripped = docstripped.replace('.svgz', '')
        
        # create destination zip in same directory as the document
        self.zip_file = os.path.join(self.tmp_dir, docstripped) + '.zip'
        z = zipfile.ZipFile(self.zip_file, 'w')

        #read tmpdoc and copy all images to temp dir
        for node in self.document.xpath('//svg:image', namespaces=inkex.NSS):
            self.collectAndZipImages(node, docname, z)

        ##copy tmpdoc to tempdir
        dst_file = os.path.join(self.tmp_dir, docstripped)
        stream = open(dst_file,'w')

        self.document.write(stream)

        stream.close()

        z.write(dst_file,docstripped.encode(self.encoding)+'.svg')

        z.close()

    def collectAndZipImages(self, node, docname, z):
        xlink = node.get(inkex.addNS('href',u'xlink'))
        if (xlink[:4]!='data'):
            absref=node.get(inkex.addNS('absref',u'sodipodi'))
            url=urlparse.urlparse(xlink)
            href=urllib.url2pathname(url.path)
            
            if (href != None):
                absref=os.path.realpath(href)

            absref=unicode(absref, "utf-8")

            if (os.path.isfile(absref)):
                shutil.copy(absref, self.tmp_dir)
                z.write(absref, os.path.basename(absref).encode(self.encoding))
            elif (os.path.isfile(os.path.join(self.tmp_dir, absref))):
                #TODO: please explain why this clause is necessary
                shutil.copy(os.path.join(self.tmp_dir, absref), self.tmp_dir)
                z.write(os.path.join(self.tmp_dir, absref),
                        os.path.basename(absref).encode(self.encoding))
            else:
                inkex.errormsg(_('Could not locate file: %s') % absref)

            node.set(inkex.addNS('href',u'xlink'),os.path.basename(absref))
            node.set(inkex.addNS('absref',u'sodipodi'),os.path.basename(absref))


if __name__ == '__main__':   #pragma: no cover
    e = SVG_and_Media_ZIP_Output()
    e.affect()


# vim: expandtab shiftwidth=4 tabstop=8 softtabstop=4 encoding=utf-8 textwidth=99

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