Add timezone configuration

- Change the way calendars with no timezone information are processed
- By default process calendars as if they're Australia/Perth. This differs from the config in the rules file.
- Can now specify other timezones on the command line.

diff --git a/icalparse.py b/icalparse.py
index f00b400..3907da7 100755 (executable)
--- a/icalparse.py
+++ b/icalparse.py
@@ -116,13 +116,16 @@ def getHTTPContent(url='',cache='.httplib2-cache'):
        return (content, encoding)
 
 
-def generateRules():
+def generateRules(ruleConfig):
        '''Attempts to load a series of rules into a list'''
        try:
                import parserrules
        except ImportError:
                return []
 
+       for conf in ruleConfig:
+               parserrules.ruleConfig[conf] = ruleConfig[conf]
+
        rules = [getattr(parserrules, rule) for rule in dir(parserrules) if callable(getattr(parserrules, rule))]
        return rules
 
@@ -157,9 +160,9 @@ def writeOutput(cal, outfile=''):
                out.close()
 
 if __name__ == '__main__':
+       # Only load options parsing if this script was called directly, skip it
+       # if it's being called as a module.
        from optparse import OptionParser
-       # If the user passed us a 'stdin' argument, we'll go with that,
-       # otherwise we'll try for a url opener
 
        parser = OptionParser('usage: %prog [options] url')
        parser.add_option('-s', '--stdin', action='store_true', dest='stdin',
@@ -171,9 +174,17 @@ if __name__ == '__main__':
        parser.add_option('-m','--encoding', dest='encoding', default='',
                help='Specify a different character encoding'
                '(ignored if the remote server also specifies one)')
+       parser.add_option('-t','--timezone', dest='timezone', default='Australia/Perth',
+               help='Specify a timezone to use if the remote calendar doesn\'t set it properly')
 
        (options, args) = parser.parse_args()
 
+       # Ensure the rules process using the desired timezone
+       ruleConfig = {}
+       ruleConfig["defaultTZ"] = options.timezone
+
+       # If the user passed us a 'stdin' argument, we'll go with that,
+       # otherwise we'll try for a url opener
        if not args and not options.stdin:
                parser.print_usage()
                sys.exit(0)
@@ -186,6 +197,6 @@ if __name__ == '__main__':
        encoding = encoding or options.encoding or 'utf-8'
 
        cal = vobject.readOne(unicode(content, encoding))
-       cal = applyRules(cal, generateRules(), options.verbose)
+       cal = applyRules(cal, generateRules(ruleConfig), options.verbose)
 
        writeOutput(cal, options.outfile)