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dupeguru/base/py/app.py
hsoft f5c20b149b [#39 state:fixed] Wrapped the LookupError in DupeGuru.save()
--HG--
extra : convert_revision : svn%3Ac306627e-7827-47d3-bdf0-9a457c9553a1/trunk%40169
2009-10-03 10:27:32 +00:00

257 lines
8.9 KiB
Python

#!/usr/bin/env python
# Created By: Virgil Dupras
# Created On: 2006/11/11
# $Id$
# Copyright 2009 Hardcoded Software (http://www.hardcoded.net)
#
# This software is licensed under the "HS" License as described in the "LICENSE" file,
# which should be included with this package. The terms are also available at
# http://www.hardcoded.net/licenses/hs_license
from __future__ import unicode_literals
import os
import os.path as op
import logging
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
from . import directories, results, scanner, export
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("Could not send {0} to trash.".format(unicode(dupe.path)))
return False
def _do_load(self, j):
self.directories.load_from_file(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(attrnames=self.data.METADATA_TO_READ)
def _get_display_info(self, dupe, group, delta=False):
if (dupe is None) or (group is None):
return ['---'] * len(self.data.COLUMNS)
try:
return self.data.GetDisplayInfo(dupe, group, delta)
except Exception as e:
logging.warning("Exception on GetDisplayInfo for %s: %s", unicode(dupe.path), unicode(e))
return ['---'] * len(self.data.COLUMNS)
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 add_directory(self, d):
try:
self.directories.add_path(Path(d))
return 0
except directories.AlreadyThereError:
return 1
except directories.InvalidPathError:
return 2
def add_to_ignore_list(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 apply_filter(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 copy_or_move(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]
try:
if not io.exists(dest_path):
io.makedirs(dest_path)
if copy:
files.copy(source_path, dest_path)
else:
files.move(source_path, dest_path)
self.clean_empty_dirs(source_path[:-1])
except EnvironmentError 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.copy_or_move(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 export_to_xhtml(self, column_ids):
column_ids = [colid for colid in column_ids if colid.isdigit()]
column_ids = map(int, column_ids)
column_ids.sort()
colnames = [col['display'] for i, col in enumerate(self.data.COLUMNS) if i in column_ids]
rows = []
for group in self.results.groups:
for dupe in group:
data = self._get_display_info(dupe, group)
row = [data[colid] for colid in column_ids]
row.insert(0, dupe is not group.ref)
rows.append(row)
return export.export_to_xhtml(colnames, rows)
def load(self):
self._start_job(JOB_LOAD, self._do_load)
self.load_ignore_list()
def load_ignore_list(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):
try:
self.directories.save_to_file(op.join(self.appdata, 'last_directories.xml'))
self.results.save_to_xml(op.join(self.appdata, 'last_results.xml'))
except LookupError:
# This is that weird issue from #39 that sometimes happens when auto-updating with
# Sparkle. Just ignore it.
pass
def save_ignore_list(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