splitTemplates templates.html dirname -- refactoring tool to split out each <template name="xxx">contents</template> to its own file

splitTemplates

#!/usr/bin/python
# Copyright 2014 Dr Paul Brewer -- Economic and Financial Technology Consulting LLC
# This script is made available under the terms of the MIT LICENSE
# Intended as a helper for refactoring template-enhanced html
# warning: overwrites existing files. 
# Does not delete or modify original file templates.html
# Thanks to Stack Overflow users for these helpful hints:
# use of htmlparser to unescape entities 
# http://stackoverflow.com/a/21894821/103081
# http://stackoverflow.com/a/663128/103081
# Requires Python module: beautiful soup "bs4"
# This module can be installed at either the system or user level
# at the system level, see:  http://www.crummy.com/software/BeautifulSoup/bs4/doc/#installing-beautiful-soup
# if you aren't root, install bs4 at the user level, for example on a nitrous.io developer account: pip install --user bs4  
import bs4
import sys
import os
import HTMLParser
U = HTMLParser.HTMLParser().unescape
if len(sys.argv) != 3:
    print "usage: splitTemplates templates.html dirname"
    print "for each <template name='xxx'> in templates.html creates a file xxx.html in dirname"
    sys.exit(0)
filename = sys.argv[1]
fname, ext = os.path.splitext(filename)
dirname = sys.argv[2]
# make the directory dirname.  If this fails, we assume it is because it existed already
try:
    os.mkdir(dirname)
except OSError:
    pass
soup = bs4.BeautifulSoup(open(filename,"r"))
for t in soup.children:
    if t.name=="template":
        newfname = dirname+"/"+t["name"]+ext
        f = open(newfname,"w")
        f.write(U(t.prettify(formatter=None)))
        f.close()
        print newfname