update mapnik2 upgrade script to help with handling r2582
This commit is contained in:
Dane Springmeyer
parent
0d5d014474
commit
93214f83a7
1 changed files with 157 additions and 40 deletions
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@ -2,8 +2,11 @@
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import os
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import re
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import sys
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import optparse
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import tempfile
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__version__ = '0.1.0'
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HAS_LXML = False
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try:
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@ -15,6 +18,11 @@ except ImportError:
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except ImportError:
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import xml.etree.ElementTree as etree
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def color_text(color, text):
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if os.name == 'nt':
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return text
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return "\033[9%sm%s\033[0m" % (color,text)
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def indent(elem, level=0):
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""" http://infix.se/2007/02/06/gentlemen-indent-your-xml
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"""
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@ -34,11 +42,15 @@ def indent(elem, level=0):
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def name2expr(sym):
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name = sym.attrib['name']
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if re.match('^\[.*\]',name) is None:
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#import pdb;pdb.set_trace()
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print>>sys.stderr,"Fixing %s" % name
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expression = '[%s]' % name
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sym.attrib['name'] = expression
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if re.match('^\[.*\]',name) is None \
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and '[' not in name \
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and ']' not in name \
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and not name.startswith("'") \
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and not name.endswith("'") \
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and re.match("^\'.*\'",name) is None:
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print>>sys.stderr,"Fixing %s" % name
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expression = '[%s]' % name
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sym.attrib['name'] = expression
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def handle_attr_changes(sym):
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# http://www.w3schools.com/css/pr_text_text-transform.asp
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@ -64,7 +76,7 @@ def handle_attr_changes(sym):
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sym.attrib['minimum_padding'] = minimum_padding
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sym.attrib.pop('min_padding')
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def fixup_pointsym(sym):
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def fixup_sym_with_image(sym):
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if sym.attrib.get('width'):
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sym.attrib.pop('width')
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if sym.attrib.get('height'):
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@ -73,35 +85,33 @@ def fixup_pointsym(sym):
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sym.attrib.pop('type')
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def fixup_sym_attributes(sym):
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# copy, so we don't loose after clear()
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attrib = dict(sym.attrib)
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for css in sym.findall('CssParameter'):
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key = css.attrib.get('name')
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value = css.text
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attrib[key] = value
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sym.clear() # remove CssParameter elements
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for k,v in attrib.items(): # insert attributes instead
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sym.attrib[k] = v
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if len(sym.findall('CssParameter')):
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# copy, so we don't loose after clear()
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attrib = dict(sym.attrib)
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for css in sym.findall('CssParameter'):
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key = css.attrib.get('name')
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value = css.text
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attrib[key] = value
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sym.clear() # remove CssParameter elements
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for k,v in attrib.items(): # insert attributes instead
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sym.attrib[k] = v
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def underscore2dash(elem):
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for i in elem.attrib.items():
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if '_' in i[0]:
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new = i[0].replace('_','-')
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old = i[0]
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elem.attrib[new] = i[1]
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elem.attrib.pop(old)
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print>>sys.stderr,"Changing %s to %s" % (new,old)
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if __name__ == "__main__":
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def upgrade(input_xml,output_xml=None,indent_xml=True):
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#required parameters:
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# input_xml: outdated stylesheet file
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# output_file: new stylesheet file
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if len(sys.argv) != 3:
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sys.stderr.write('Usage: %s <input_xml> <output_xml>\n' % os.path.basename(sys.argv[0]))
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if not os.path.exists(input_xml):
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sys.stderr.write('input xml "%s" does not exist' % input_xml)
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sys.exit(1)
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input_xml = sys.argv[1]
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output_xml = sys.argv[2]
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if input_xml == output_xml:
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sys.stderr.write('Sorry, this upgrade script does not allow you to overwrite the input xml, please provide a different output name than "%s"\n' % output_xml)
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sys.exit(1)
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pre_read = open(input_xml,'r')
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if '!ENTITY' in pre_read.read() and not HAS_LXML:
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sys.stderr.write('\nSorry, it appears the xml you are trying to upgrade has entities, which requires lxml (python bindings to libxml2)\n')
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@ -109,18 +119,38 @@ if __name__ == "__main__":
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sys.exit(1)
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tree = etree.parse(input_xml)
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try:
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tree = etree.parse(input_xml)
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except:
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print 'Could not parse "%s" invalid XML' % input_xml
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return
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if hasattr(tree,'xinclude'):
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tree.xinclude()
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root = tree.getroot()
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root.set('minimum-version','0.7.2')
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# rename 'bgcolor' to 'background-color'
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if root.attrib.get('bgcolor'):
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root.attrib['background-color'] = root.attrib.get('bgcolor')
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root.attrib.pop('bgcolor')
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# set new minimum_version
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root.set('minimum_version','0.7.2')
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# underscores to spaces for <Map ..>
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underscore2dash(root)
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# underscores to spaces for <FontSet ..>
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fontset = root.findall('FontSet')
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for f in fontset:
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font = f.findall('Font')
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for f_ in font:
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underscore2dash(f_)
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# underscores to spaces for <Layer ..>
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layers = root.findall('Layer')
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for l in layers:
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underscore2dash(l)
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styles = root.findall('Style')
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if not len(styles):
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@ -131,20 +161,107 @@ if __name__ == "__main__":
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for sym in rule.findall('TextSymbolizer') or []:
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name2expr(sym)
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handle_attr_changes(sym)
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fixup_sym_attributes(sym)
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underscore2dash(sym)
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for sym in rule.findall('ShieldSymbolizer') or []:
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name2expr(sym)
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handle_attr_changes(sym)
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fixup_sym_attributes(sym)
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underscore2dash(sym)
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fixup_sym_with_image(sym)
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for sym in rule.findall('PointSymbolizer') or []:
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fixup_pointsym(sym)
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fixup_sym_with_image(sym)
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fixup_sym_attributes(sym)
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underscore2dash(sym)
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for sym in rule.findall('PolygonPatternSymbolizer') or []:
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fixup_sym_with_image(sym)
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fixup_sym_attributes(sym)
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underscore2dash(sym)
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for sym in rule.findall('LinePatternSymbolizer') or []:
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fixup_sym_with_image(sym)
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fixup_sym_attributes(sym)
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underscore2dash(sym)
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for sym in rule.findall('LineSymbolizer') or []:
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fixup_sym_attributes(sym)
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underscore2dash(sym)
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for sym in rule.findall('PolygonSymbolizer') or []:
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fixup_sym_attributes(sym)
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underscore2dash(sym)
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for sym in rule.findall('RasterSymbolizer') or []:
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fixup_sym_attributes(sym)
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underscore2dash(sym)
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for sym in rule.findall('BuildingSymbolizer') or []:
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fixup_sym_attributes(sym)
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underscore2dash(sym)
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for sym in rule.findall('GlyphSymbolizer') or []:
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fixup_sym_attributes(sym)
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underscore2dash(sym)
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if indent_xml:
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indent(root)
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if output_xml:
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tree.write(output_xml)
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else:
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tree.write(input_xml)
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parser = optparse.OptionParser(usage="""%prog <input xml> [options]
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Upgrade a Mapnik XML stylesheet to Mapnik 2.0
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Full help:
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$ %prog -h (or --help for possible options)
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Read 'map.xml' and write new 'map2.xml'
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$ %prog map.xml map2.xml
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Update 'map.xml' in place (*Careful*)
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$ %prog map.xml --in-place
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""", version='%prog ' + __version__)
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parser.add_option('--indent',
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dest='indent_xml',
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action='store_true',
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default=False,
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help='Indent the resulting XML')
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parser.add_option('--in-place',
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dest='update_in_place',
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action='store_true',
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default=False,
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help='Update and overwrite the map in place')
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if __name__ == "__main__":
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(options, args) = parser.parse_args()
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if not len(args) > 0:
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parser.error("Please provide the path to a map.xml and a new xml to write")
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input_xml = args[0]
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output_xml = None
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if len(args) < 3 and not options.update_in_place:
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if len(args) == 2:
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output_xml = args[1]
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if (len(args) == 1) or (input_xml == output_xml):
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parser.error(color_text(1,'\n\nAre you sure you want to overwrite "%s"?\nIf so, then pass --in-place to confirm.\nOtherwise pass a different filename to write an upgraded copy to.\n' % input_xml))
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print 'Upgrading "%s" to "%s"...' % (input_xml,output_xml)
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upgrade(input_xml,output_xml=output_xml,indent_xml=options.indent_xml)
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elif len(args) == 1:
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print 'Upgrading "%s" to "%s"...' % (input_xml,output_xml)
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upgrade(input_xml,output_xml=output_xml,indent_xml=options.indent_xml)
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elif len(args) > 1: # assume a list of inputs
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found = []
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for input_xml in args:
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if os.path.exists(input_xml) and input_xml not in found:
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print 'Upgrading "%s" in place...' % input_xml
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found.append(input_xml)
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upgrade(input_xml,output_xml=None,indent_xml=options.indent_xml)
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# TODO - make forcing indent an option
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indent(root)
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tree.write(output_xml)
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