#!/usr/bin/env python
"""
meta.py - Create a Metadata File
Author: Sean B. Palmer, inamidst.com
Usage: ./meta.py <path>
"""

import sys, os

def makepath(path): 
   path = os.path.dirname(path)
   if not os.path.isdir(path): 
      os.makedirs(path)

def barf(msg): 
   print >> sys.stderr, msg
   sys.exit(1)

def meta(path): 
   path = path.lstrip('.')
   if not path.startswith('/'): 
      path = '/' + path
   if path.endswith('/'): 
      path += 'index'

   if not os.path.isdir('meta'): 
      barf("Error: There is no meta directory")
   metafn = os.path.join('meta', '.' + path)
   metafn = os.path.normpath(metafn)

   if os.path.exists(metafn): 
      barf("Error: file <%s> already exists" % metafn)
   makepath(metafn)

   title = raw_input("Title: ")
   desc = raw_input("Description: ")
   keywords = raw_input("Keywords: ")

   if not (title or desc or keywords): 
      barf("Error: Must enter title or desc or keywords")

   f = open(metafn, 'w')
   if title: print >> f, 'title:', title
   if desc: print >> f, 'description:', desc
   if keywords: 
      keywords = sorted(keywords.split(' '))
      print >> f, 'keywords:', ' '.join(keywords)
   f.close()

   print "Created %s successfully" % metafn

def main(): 
   if len(sys.argv) == 2: 
      meta(sys.argv[1])
   else: print __doc__.strip()

if __name__=="__main__": 
   main()