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360 lines
13 KiB
Python
360 lines
13 KiB
Python
#!/usr/bin/env python
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"""
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Unit Name: dupeguru.results
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Created By: Virgil Dupras
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Created On: 2006/02/23
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Last modified by:$Author: virgil $
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Last modified on:$Date: 2009-05-28 16:33:32 +0200 (Thu, 28 May 2009) $
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$Revision: 4392 $
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Copyright 2004-2006 Hardcoded Software (http://www.hardcoded.net)
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"""
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import re
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from xml.sax import handler, make_parser, SAXException
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from xml.sax.saxutils import XMLGenerator
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from xml.sax.xmlreader import AttributesImpl
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from . import engine
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from hsutil.job import nulljob
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from hsutil.markable import Markable
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from hsutil.misc import flatten, cond, nonone
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from hsutil.str import format_size
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from hsutil.files import open_if_filename
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class Results(Markable):
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#---Override
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def __init__(self, data_module):
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super(Results, self).__init__()
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self.__groups = []
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self.__group_of_duplicate = {}
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self.__groups_sort_descriptor = None # This is a tuple (key, asc)
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self.__dupes = None
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self.__dupes_sort_descriptor = None # This is a tuple (key, asc, delta)
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self.__filters = None
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self.__filtered_dupes = None
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self.__filtered_groups = None
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self.__recalculate_stats()
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self.__marked_size = 0
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self.data = data_module
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def _did_mark(self, dupe):
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self.__marked_size += dupe.size
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def _did_unmark(self, dupe):
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self.__marked_size -= dupe.size
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def _get_markable_count(self):
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return self.__total_count
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def _is_markable(self, dupe):
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if dupe.is_ref:
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return False
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g = self.get_group_of_duplicate(dupe)
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if not g:
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return False
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if dupe is g.ref:
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return False
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if self.__filtered_dupes and dupe not in self.__filtered_dupes:
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return False
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return True
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#---Private
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def __get_dupe_list(self):
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if self.__dupes is None:
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self.__dupes = flatten(group.dupes for group in self.groups)
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if self.__filtered_dupes:
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self.__dupes = [dupe for dupe in self.__dupes if dupe in self.__filtered_dupes]
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sd = self.__dupes_sort_descriptor
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if sd:
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self.sort_dupes(sd[0], sd[1], sd[2])
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return self.__dupes
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def __get_groups(self):
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if self.__filtered_groups is None:
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return self.__groups
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else:
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return self.__filtered_groups
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def __get_stat_line(self):
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if self.__filtered_dupes is None:
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mark_count = self.mark_count
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marked_size = self.__marked_size
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total_count = self.__total_count
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total_size = self.__total_size
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else:
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mark_count = len([dupe for dupe in self.__filtered_dupes if self.is_marked(dupe)])
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marked_size = sum(dupe.size for dupe in self.__filtered_dupes if self.is_marked(dupe))
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total_count = len([dupe for dupe in self.__filtered_dupes if self.is_markable(dupe)])
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total_size = sum(dupe.size for dupe in self.__filtered_dupes if self.is_markable(dupe))
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if self.mark_inverted:
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marked_size = self.__total_size - marked_size
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result = '%d / %d (%s / %s) duplicates marked.' % (
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mark_count,
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total_count,
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format_size(marked_size, 2),
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format_size(total_size, 2),
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)
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if self.__filters:
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result += ' filter: %s' % ' --> '.join(self.__filters)
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return result
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def __recalculate_stats(self):
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self.__total_size = 0
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self.__total_count = 0
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for group in self.groups:
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markable = [dupe for dupe in group.dupes if self._is_markable(dupe)]
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self.__total_count += len(markable)
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self.__total_size += sum(dupe.size for dupe in markable)
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def __set_groups(self, new_groups):
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self.mark_none()
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self.__groups = new_groups
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self.__group_of_duplicate = {}
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for g in self.__groups:
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for dupe in g:
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self.__group_of_duplicate[dupe] = g
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if not hasattr(dupe, 'is_ref'):
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dupe.is_ref = False
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old_filters = nonone(self.__filters, [])
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self.apply_filter(None)
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for filter_str in old_filters:
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self.apply_filter(filter_str)
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#---Public
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def apply_filter(self, filter_str):
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''' Applies a filter 'filter_str' to self.groups
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When you apply the filter, only dupes with the filename matching 'filter_str' will be in
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in the results. To cancel the filter, just call apply_filter with 'filter_str' to None,
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and the results will go back to normal.
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If call apply_filter on a filtered results, the filter will be applied
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*on the filtered results*.
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'filter_str' is a string containing a regexp to filter dupes with.
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'''
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if not filter_str:
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self.__filtered_dupes = None
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self.__filtered_groups = None
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self.__filters = None
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else:
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if not self.__filters:
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self.__filters = []
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self.__filters.append(filter_str)
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filter_re = re.compile(filter_str, re.IGNORECASE)
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if self.__filtered_dupes is None:
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self.__filtered_dupes = flatten(g[:] for g in self.groups)
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self.__filtered_dupes = set(dupe for dupe in self.__filtered_dupes if filter_re.search(dupe.name))
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filtered_groups = set()
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for dupe in self.__filtered_dupes:
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filtered_groups.add(self.get_group_of_duplicate(dupe))
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self.__filtered_groups = list(filtered_groups)
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self.__recalculate_stats()
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sd = self.__groups_sort_descriptor
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if sd:
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self.sort_groups(sd[0], sd[1])
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self.__dupes = None
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def get_group_of_duplicate(self, dupe):
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try:
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return self.__group_of_duplicate[dupe]
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except (TypeError, KeyError):
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return None
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is_markable = _is_markable
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def load_from_xml(self, infile, get_file, j=nulljob):
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self.apply_filter(None)
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handler = _ResultsHandler(get_file)
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parser = make_parser()
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parser.setContentHandler(handler)
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try:
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infile, must_close = open_if_filename(infile)
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except IOError:
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return
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BUFSIZE = 1024 * 1024 # 1mb buffer
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infile.seek(0, 2)
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j.start_job(infile.tell() // BUFSIZE)
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infile.seek(0, 0)
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try:
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while True:
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data = infile.read(BUFSIZE)
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if not data:
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break
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parser.feed(data)
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j.add_progress()
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except SAXException:
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return
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self.groups = handler.groups
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for dupe_file in handler.marked:
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self.mark(dupe_file)
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def make_ref(self, dupe):
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g = self.get_group_of_duplicate(dupe)
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r = g.ref
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self._remove_mark_flag(dupe)
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g.switch_ref(dupe);
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if not r.is_ref:
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self.__total_count += 1
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self.__total_size += r.size
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if not dupe.is_ref:
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self.__total_count -= 1
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self.__total_size -= dupe.size
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self.__dupes = None
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def perform_on_marked(self, func, remove_from_results):
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problems = []
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for d in self.dupes:
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if self.is_marked(d) and (not func(d)):
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problems.append(d)
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if remove_from_results:
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to_remove = [d for d in self.dupes if self.is_marked(d) and (d not in problems)]
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self.remove_duplicates(to_remove)
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self.mark_none()
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for d in problems:
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self.mark(d)
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return len(problems)
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def remove_duplicates(self, dupes):
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'''Remove 'dupes' from their respective group, and remove the group is it ends up empty.
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'''
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affected_groups = set()
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for dupe in dupes:
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group = self.get_group_of_duplicate(dupe)
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if dupe not in group.dupes:
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return
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group.remove_dupe(dupe, False)
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self._remove_mark_flag(dupe)
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self.__total_count -= 1
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self.__total_size -= dupe.size
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if not group:
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self.__groups.remove(group)
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if self.__filtered_groups:
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self.__filtered_groups.remove(group)
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else:
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affected_groups.add(group)
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for group in affected_groups:
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group.clean_matches()
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self.__dupes = None
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def save_to_xml(self, outfile, with_data=False):
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self.apply_filter(None)
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outfile, must_close = open_if_filename(outfile, 'wb')
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writer = XMLGenerator(outfile, 'utf-8')
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writer.startDocument()
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empty_attrs = AttributesImpl({})
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writer.startElement('results', empty_attrs)
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for g in self.groups:
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writer.startElement('group', empty_attrs)
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dupe2index = {}
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for index, d in enumerate(g):
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dupe2index[d] = index
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try:
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words = engine.unpack_fields(d.words)
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except AttributeError:
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words = ()
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attrs = AttributesImpl({
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'path': unicode(d.path),
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'is_ref': cond(d.is_ref, 'y', 'n'),
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'words': ','.join(words),
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'marked': cond(self.is_marked(d), 'y', 'n')
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})
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writer.startElement('file', attrs)
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if with_data:
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data_list = self.data.GetDisplayInfo(d, g)
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for data in data_list:
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attrs = AttributesImpl({
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'value': data,
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})
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writer.startElement('data', attrs)
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writer.endElement('data')
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writer.endElement('file')
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for match in g.matches:
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attrs = AttributesImpl({
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'first': str(dupe2index[match.first]),
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'second': str(dupe2index[match.second]),
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'percentage': str(int(match.percentage)),
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})
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writer.startElement('match', attrs)
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writer.endElement('match')
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writer.endElement('group')
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writer.endElement('results')
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writer.endDocument()
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if must_close:
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outfile.close()
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def sort_dupes(self, key, asc=True, delta=False):
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if not self.__dupes:
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self.__get_dupe_list()
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self.__dupes.sort(key=lambda d: self.data.GetDupeSortKey(d, lambda: self.get_group_of_duplicate(d), key, delta))
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if not asc:
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self.__dupes.reverse()
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self.__dupes_sort_descriptor = (key,asc,delta)
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def sort_groups(self,key,asc=True):
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self.groups.sort(key=lambda g: self.data.GetGroupSortKey(g, key))
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if not asc:
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self.groups.reverse()
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self.__groups_sort_descriptor = (key,asc)
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#---Properties
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dupes = property(__get_dupe_list)
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groups = property(__get_groups, __set_groups)
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stat_line = property(__get_stat_line)
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class _ResultsHandler(handler.ContentHandler):
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def __init__(self, get_file):
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self.group = None
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self.dupes = None
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self.marked = set()
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self.groups = []
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self.get_file = get_file
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def startElement(self, name, attrs):
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if name == 'group':
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self.group = engine.Group()
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self.dupes = []
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return
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if (name == 'file') and (self.group is not None):
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if not (('path' in attrs) and ('words' in attrs)):
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return
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path = attrs['path']
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file = self.get_file(path)
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if file is None:
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return
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file.words = attrs['words'].split(',')
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file.is_ref = attrs.get('is_ref') == 'y'
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self.dupes.append(file)
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if attrs.get('marked') == 'y':
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self.marked.add(file)
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if (name == 'match') and (self.group is not None):
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try:
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first_file = self.dupes[int(attrs['first'])]
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second_file = self.dupes[int(attrs['second'])]
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percentage = int(attrs['percentage'])
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self.group.add_match(engine.Match(first_file, second_file, percentage))
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except (IndexError, KeyError, ValueError): # Covers missing attr, non-int values and indexes out of bounds
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pass
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def endElement(self, name):
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def do_match(ref_file, other_files, group):
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if not other_files:
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return
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for other_file in other_files:
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group.add_match(engine.get_match(ref_file, other_file))
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do_match(other_files[0], other_files[1:], group)
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if name == 'group':
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group = self.group
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self.group = None
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dupes = self.dupes
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self.dupes = []
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if group is None:
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return
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if len(dupes) < 2:
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return
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if not group.matches: # <match> elements not present, do it manually, without %
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do_match(dupes[0], dupes[1:], group)
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group.prioritize(lambda x: dupes.index(x))
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self.groups.append(group)
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