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# -*- coding: utf-8 -*- |
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#!/usr/bin/python |
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"""\n |
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Diffs to given formedtrees. Note that currently no checks on external choice |
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lists are done. Furter checks on Repeatgroups are very simple for now. |
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Warning: If a field with the same name is moved from master_tbl into a RG, it will not be |
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noticed, as we do not diff strutural changes. |
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|
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Usage: diff_formed.py old new |
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|
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Options: |
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-h / --help Print this message and exit. |
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-e / --elements comma-seperated list of elements to check |
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--check-attributes Check changes in attributes (changed descriptions, target...) |
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|
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""" |
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# 20100810 Torsten Irlaender <[email protected]> |
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# |
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# This program is free software under the GNU GPL (>=v2) |
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# Read the file COPYING coming with the software for details. |
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|
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|
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import sys |
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import getopt |
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import logging |
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|
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from lxml import etree |
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|
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logging.basicConfig(level=logging.ERROR) |
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log = logging.getLogger('diff_formed') |
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|
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class AttributeChangeException(Exception): |
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def __init__(self, n, c, d): |
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self.new = n |
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self.changed = c |
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self.deleted = d |
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|
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msg = [] |
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if self.new: |
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msg.append('New: %s' % ",".join(self.new)) |
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if self.changed: |
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msg.append('Changed: %s' % ",".join(self.changed)) |
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if self.deleted: |
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msg.append('Deleted: %s' % ",".join(self.deleted)) |
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self.message = " | ".join(msg) |
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|
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class Inspector(): |
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|
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def __init__(self, filename_old, filename_new): |
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|
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self.old_xml_doc = None |
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self.new_xml_doc = None |
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self.elements_old = {} |
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self.elements_new = {} |
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self.elements = ['choice', 'text', 'textarea', 'repeat'] |
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|
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# Open files and load xml |
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try: |
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f1 = None |
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f2 = None |
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log.debug('Old: %s'% filename_old) |
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f1 = open(filename_old, "r") |
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log.debug('New: %s'% filename_new) |
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f2 = open(filename_new, "r") |
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self.old_xml_doc = etree.parse(f1) |
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self.new_xml_doc = etree.parse(f2) |
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except: |
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log.exception('Error while opening file') |
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finally: |
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if f1 is not None: |
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f1.close() |
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if f2 is not None: |
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f2.close() |
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|
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def perform(self, elements=None, check_attributes=False): |
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log.info('Only checking %s elements' % ",".join(elements)) |
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for element in self.elements: |
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if elements is not None: |
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if element not in elements: continue |
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self.elements_old[element] = [] |
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self.elements_new[element] = [] |
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for e in self.old_xml_doc.findall("//%s" % element): |
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self.elements_old[element].append(e) |
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for e in self.new_xml_doc.findall("//%s" % element): |
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self.elements_new[element].append(e) |
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self.diff_element(element, check_attributes) |
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|
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def diff_element(self, element, check_attributes): |
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log.debug('Checking %s elements' % element) |
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out = [] |
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|
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# Search for old field in new |
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for o in self.elements_old.get(element): |
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error = [] |
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name = o.attrib.get('name') |
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found = False |
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for n in self.elements_new.get(element): |
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if name == n.attrib.get('name'): |
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found = True |
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try: |
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if check_attributes: |
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self.diff_attributes(o, n) |
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except AttributeChangeException, e: |
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error.append("Attributes changed for '%s': %s" % (name, e.message)) |
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if element == 'choice': |
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error.extend(self.diff_choicelist(o, n, check_attributes)) |
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break |
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if not found: |
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error.append("Deleted") |
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|
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if error: |
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out.append("Field: %s (%s)" % (name, element)) |
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out.append('---') |
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out.append('Changes:') |
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for num, err in enumerate(error): |
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out.append('%s. %s' % (num, err)) |
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out.append('===') |
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|
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# Searching for new fields in old |
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for o in self.elements_new.get(element): |
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error = [] |
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name = o.attrib.get('name') |
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# Search for element in new |
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found = False |
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for n in self.elements_old.get(element): |
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if name == n.attrib.get('name'): |
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found = True |
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break |
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if not found: |
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error.append("New") |
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|
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if error: |
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out.append("Field: %s (%s)" % (name, element)) |
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out.append('---') |
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out.append('Changes:') |
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for num, err in enumerate(error): |
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out.append('%s. %s' % (num, err)) |
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out.append('===') |
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|
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for o in out: |
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print unicode(o).encode("utf-8") |
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|
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def diff_choicelist(self, o, n, check_attributes): |
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old = {} |
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new = {} |
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errors = [] |
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for c in o.getchildren(): |
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old[c.attrib.get('value')] = c |
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for c in n.getchildren(): |
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new[c.attrib.get('value')] = c |
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|
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for key in old.keys(): |
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if new.has_key(key): |
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try: |
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if check_attributes: |
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self.diff_attributes(old.get(key), new.get(key)) |
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except AttributeChangeException, e: |
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errors.append("Attributes changed for '%s': %s " % (key, e.message) ) |
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else: |
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errors.append("Deleted option: '%s' value: '%s'" % (old.get(key).attrib.get('description'), key)) |
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for key in new.keys(): |
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if not old.has_key(key): |
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errors.append("New option: '%s' value: '%s'" % (new.get(key).attrib.get('description'), key)) |
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|
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return errors |
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|
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def diff_attributes(self, o, n): |
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ok = False |
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new = [] |
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changed = [] |
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deleted = [] |
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for key, value in o.attrib.iteritems(): |
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if n.attrib.has_key(key): |
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if n.get(key) == value: |
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pass #Ok |
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else: |
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changed.append(key) |
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else: |
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deleted.append(key) |
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for key, value in n.attrib.iteritems(): |
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if not o.attrib.has_key(key): |
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new.append(key) |
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|
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if len(new) > 0 or len(changed) > 0 or len(deleted) > 0: |
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raise AttributeChangeException(new, changed, deleted) |
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|
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def usage(code, msg=''): |
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print >> sys.stderr, __doc__ |
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if msg: |
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print >> sys.stderr, msg |
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sys.exit(code) |
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|
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def main(): |
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try: |
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opts, args = getopt.getopt(sys.argv[1:], 'hvVe:', |
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['elements=', 'check-attributes']) |
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|
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except getopt.error, msg: |
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usage(1, msg) |
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|
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elements = None |
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check_attributes = False |
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for opt, arg in opts: |
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if opt in ('-v'): |
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log.setLevel(logging.INFO) |
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if opt in ('-V'): |
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log.setLevel(logging.DEBUG) |
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if opt in ('-h', '--help'): |
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usage(0) |
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if opt in ('-e', '--elements'): |
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elements = arg.split(',') |
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log.debug('Elements: %s' % elements) |
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if opt in ('--check-attributes'): |
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check_attributes = True |
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if len(args) < 2: |
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usage(1) |
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|
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ins = Inspector(args[0], args[1]) |
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ins.perform(elements, check_attributes) |
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|
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if __name__ == '__main__': |
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main() |
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