File: validate_gpsfile.py

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pytrainer 2.0.0-1
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#!/usr/bin/env python

import os, sys
from optparse import OptionParser
from lxml import etree

def main():
    #Setup usage and permitted options
    usage = "usage: %prog [options] filename"
    parser = OptionParser(usage=usage)
    parser.add_option("-s", "--schema",
    dest="schema",
    help="specify schema to validate FILE against")
    parser.add_option("-v", "--verbose",
            action="store_true", dest="verbose", default=False,
            help="show extra information (including why validation fails)")
    (options, args) = parser.parse_args()
    xmlfiles = []
    for arg in args:
        if not os.path.isfile(arg):
            print("File %s does not exist. Removing from list" % arg)
        else:
            xmlfiles.append(arg)
    #Ensure that at least one file has been supplied to validate
    if len(xmlfiles) < 1:
        parser.error("must supply at least one file to validate")
    #If a specific schema has been passed, ensure the file exists
    if options.schema:
        if os.path.isfile(options.schema):
            schemas = [options.schema]
        else:
            parser.error("Schema specified must exist")
    else:
        schemas = ["Topografix_gpx11.xsd", "Cluetrust_gpxdata10.xsd", "GarminTrainingCenterDatabase_v1.xsd", "GarminTrainingCenterDatabase_v2.xsd"]

    for schema in schemas:
        print("Validating against schema: %s" % schema)
        #Parse XML schema
        xmlschema_doc = etree.parse(schema)
        xmlschema = etree.XMLSchema(xmlschema_doc)
        #Load an XML file and try to validate it
        for xmlfile in xmlfiles:
            xmldoc = etree.parse(xmlfile)
            if (xmlschema.validate(xmldoc)):
                print("\033[0;32mFile %s validates against %s\033[m" % (xmlfile, schema))
            else:
                print("\033[0;31mFile %s does not validate against %s\033[m" % (xmlfile, schema))
                if options.verbose:
                    log = xmlschema.error_log
                    error = log.last_error
                    print(error)

if __name__ == "__main__":
    main()