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dupeguru/py/app.py
hsoft e9a97afdf8 Initial commit.
--HG--
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2009-06-01 09:55:11 +00:00

230 lines
7.6 KiB
Python

#!/usr/bin/env python
"""
Unit Name: dupeguru.app
Created By: Virgil Dupras
Created On: 2006/11/11
Last modified by:$Author: virgil $
Last modified on:$Date: 2009-05-28 16:02:48 +0200 (Thu, 28 May 2009) $
$Revision: 4388 $
Copyright 2006 Hardcoded Software (http://www.hardcoded.net)
"""
import os
import os.path as op
import logging
from hsfs import IT_ATTRS, IT_EXTRA
from hsutil import job, io, files
from hsutil.path import Path
from hsutil.reg import RegistrableApplication, RegistrationRequired
from hsutil.misc import flatten, first
from hsutil.str import escape
import directories
import results
import scanner
JOB_SCAN = 'job_scan'
JOB_LOAD = 'job_load'
JOB_MOVE = 'job_move'
JOB_COPY = 'job_copy'
JOB_DELETE = 'job_delete'
class NoScannableFileError(Exception):
pass
class AllFilesAreRefError(Exception):
pass
class DupeGuru(RegistrableApplication):
def __init__(self, data_module, appdata, appid):
RegistrableApplication.__init__(self, appid)
self.appdata = appdata
if not op.exists(self.appdata):
os.makedirs(self.appdata)
self.data = data_module
self.directories = directories.Directories()
self.results = results.Results(data_module)
self.scanner = scanner.Scanner()
self.action_count = 0
self.last_op_error_count = 0
self.options = {
'escape_filter_regexp': True,
'clean_empty_dirs': False,
}
def _demo_check(self):
if self.registered:
return
count = self.results.mark_count
if count + self.action_count > 10:
raise RegistrationRequired()
else:
self.action_count += count
def _do_delete(self, j):
def op(dupe):
j.add_progress()
return self._do_delete_dupe(dupe)
j.start_job(self.results.mark_count)
self.last_op_error_count = self.results.perform_on_marked(op, True)
def _do_delete_dupe(self, dupe):
if not io.exists(dupe.path):
dupe.parent = None
return True
self._recycle_dupe(dupe)
self.clean_empty_dirs(dupe.path[:-1])
if not io.exists(dupe.path):
dupe.parent = None
return True
logging.warning(u"Could not send {0} to trash.".format(unicode(dupe.path)))
return False
def _do_load(self, j):
self.directories.LoadFromFile(op.join(self.appdata, 'last_directories.xml'))
j = j.start_subjob([1, 9])
self.results.load_from_xml(op.join(self.appdata, 'last_results.xml'), self._get_file, j)
files = flatten(g[:] for g in self.results.groups)
for file in j.iter_with_progress(files, 'Reading metadata %d/%d'):
file._read_all_info(sections=[IT_ATTRS, IT_EXTRA])
def _get_file(self, str_path):
p = Path(str_path)
for d in self.directories:
if p not in d.path:
continue
result = d.find_path(p[d.path:])
if result is not None:
return result
@staticmethod
def _recycle_dupe(dupe):
raise NotImplementedError()
def _start_job(self, jobid, func):
# func(j)
raise NotImplementedError()
def AddDirectory(self, d):
try:
self.directories.add_path(Path(d))
return 0
except directories.AlreadyThereError:
return 1
except directories.InvalidPathError:
return 2
def AddToIgnoreList(self, dupe):
g = self.results.get_group_of_duplicate(dupe)
for other in g:
if other is not dupe:
self.scanner.ignore_list.Ignore(unicode(other.path), unicode(dupe.path))
def ApplyFilter(self, filter):
self.results.apply_filter(None)
if self.options['escape_filter_regexp']:
filter = escape(filter, '()[]\\.|+?^')
filter = escape(filter, '*', '.')
self.results.apply_filter(filter)
def clean_empty_dirs(self, path):
if self.options['clean_empty_dirs']:
while files.delete_if_empty(path, ['.DS_Store']):
path = path[:-1]
def CopyOrMove(self, dupe, copy, destination, dest_type):
"""
copy: True = Copy False = Move
destination: string.
dest_type: 0 = right in destination.
1 = relative re-creation.
2 = absolute re-creation.
"""
source_path = dupe.path
location_path = dupe.root.path
dest_path = Path(destination)
if dest_type == 2:
dest_path = dest_path + source_path[1:-1] #Remove drive letter and filename
elif dest_type == 1:
dest_path = dest_path + source_path[location_path:-1]
if not io.exists(dest_path):
io.makedirs(dest_path)
try:
if copy:
files.copy(source_path, dest_path)
else:
files.move(source_path, dest_path)
self.clean_empty_dirs(source_path[:-1])
except (IOError, OSError) as e:
operation = 'Copy' if copy else 'Move'
logging.warning('%s operation failed on %s. Error: %s' % (operation, unicode(dupe.path), unicode(e)))
return False
return True
def copy_or_move_marked(self, copy, destination, recreate_path):
def do(j):
def op(dupe):
j.add_progress()
return self.CopyOrMove(dupe, copy, destination, recreate_path)
j.start_job(self.results.mark_count)
self.last_op_error_count = self.results.perform_on_marked(op, not copy)
self._demo_check()
jobid = JOB_COPY if copy else JOB_MOVE
self._start_job(jobid, do)
def delete_marked(self):
self._demo_check()
self._start_job(JOB_DELETE, self._do_delete)
def load(self):
self._start_job(JOB_LOAD, self._do_load)
self.LoadIgnoreList()
def LoadIgnoreList(self):
p = op.join(self.appdata, 'ignore_list.xml')
self.scanner.ignore_list.load_from_xml(p)
def make_reference(self, duplicates):
changed_groups = set()
for dupe in duplicates:
g = self.results.get_group_of_duplicate(dupe)
if g not in changed_groups:
self.results.make_ref(dupe)
changed_groups.add(g)
def Save(self):
self.directories.SaveToFile(op.join(self.appdata, 'last_directories.xml'))
self.results.save_to_xml(op.join(self.appdata, 'last_results.xml'))
def SaveIgnoreList(self):
p = op.join(self.appdata, 'ignore_list.xml')
self.scanner.ignore_list.save_to_xml(p)
def start_scanning(self):
def do(j):
j.set_progress(0, 'Collecting files to scan')
files = list(self.directories.get_files())
logging.info('Scanning %d files' % len(files))
self.results.groups = self.scanner.GetDupeGroups(files, j)
files = self.directories.get_files()
first_file = first(files)
if first_file is None:
raise NoScannableFileError()
if first_file.is_ref and all(f.is_ref for f in files):
raise AllFilesAreRefError()
self.results.groups = []
self._start_job(JOB_SCAN, do)
#--- Properties
@property
def stat_line(self):
result = self.results.stat_line
if self.scanner.discarded_file_count:
result = '%s (%d discarded)' % (result, self.scanner.discarded_file_count)
return result