def _write_entry_on_external_device(metadata, file_path, ready_callback=None):
"""Create and update an entry copied from the
DS to an external storage device.
Besides copying the associated file a file for the preview
and one for the metadata are stored in the hidden directory
.Sugar-Metadata.
This function handles renames of an entry on the
external device and avoids name collisions. Renames are
handled failsafe.
"""
def _ready_cb():
if ready_callback:
ready_callback(metadata, file_path, destination_path)
def _splice_cb(*args):
created.send(None, object_id=destination_path)
_ready_cb()
if 'uid' in metadata and os.path.exists(metadata['uid']):
file_path = metadata['uid']
if not file_path or not os.path.exists(file_path):
raise ValueError('Entries without a file cannot be copied to '
'removable devices')
if not metadata.get('title'):
metadata['title'] = _('Untitled')
file_name = get_file_name(metadata['title'], metadata['mime_type'])
destination_path = os.path.join(metadata['mountpoint'], file_name)
if destination_path != file_path:
file_name = get_unique_file_name(metadata['mountpoint'], file_name)
destination_path = os.path.join(metadata['mountpoint'], file_name)
clean_name, extension_ = os.path.splitext(file_name)
metadata['title'] = clean_name
metadata_copy = metadata.copy()
metadata_copy.pop('mountpoint', None)
metadata_copy.pop('uid', None)
metadata_copy.pop('filesize', None)
metadata_dir_path = os.path.join(metadata['mountpoint'],
JOURNAL_METADATA_DIR)
if not os.path.exists(metadata_dir_path):
os.mkdir(metadata_dir_path)
# Set the HIDDEN attrib even when the metadata directory already
# exists for backward compatibility; but don't set it in ~/Documents
if not metadata['mountpoint'] == get_documents_path():
if not SugarExt.fat_set_hidden_attrib(metadata_dir_path):
logging.error('Could not set hidden attribute on %s' %
(metadata_dir_path))
preview = None
if 'preview' in metadata_copy:
preview = metadata_copy['preview']
preview_fname = file_name + '.preview'
metadata_copy.pop('preview', None)
try:
metadata_json = json.dumps(metadata_copy)
except (UnicodeDecodeError, EnvironmentError):
logging.error('Could not convert metadata to json.')
else:
(fh, fn) = tempfile.mkstemp(dir=metadata['mountpoint'])
os.write(fh, metadata_json)
os.close(fh)
os.rename(fn, os.path.join(metadata_dir_path, file_name + '.metadata'))
if preview:
(fh, fn) = tempfile.mkstemp(dir=metadata['mountpoint'])
os.write(fh, preview)
os.close(fh)
os.rename(fn, os.path.join(metadata_dir_path, preview_fname))
if not os.path.dirname(destination_path) == os.path.dirname(file_path):
input_stream = Gio.File.new_for_path(file_path).read(None)
output_stream = Gio.File.new_for_path(destination_path)\
.append_to(Gio.FileCreateFlags.PRIVATE |
Gio.FileCreateFlags.REPLACE_DESTINATION, None)
# TODO: use Gio.File.copy_async, when implemented
output_stream.splice_async(
input_stream,
Gio.OutputStreamSpliceFlags.CLOSE_SOURCE |
Gio.OutputStreamSpliceFlags.CLOSE_TARGET,
GLib.PRIORITY_LOW, None, _splice_cb, None)
else:
_rename_entry_on_external_device(file_path, destination_path,
metadata_dir_path)
_ready_cb()
def _write_entry_on_external_device(metadata, file_path):
"""Create and update an entry copied from the
DS to an external storage device.
Besides copying the associated file a file for the preview
and one for the metadata are stored in the hidden directory
.Sugar-Metadata.
This function handles renames of an entry on the
external device and avoids name collisions. Renames are
handled failsafe.
"""
if 'uid' in metadata and os.path.exists(metadata['uid']):
file_path = metadata['uid']
if not file_path or not os.path.exists(file_path):
raise ValueError('Entries without a file cannot be copied to '
'removable devices')
if not metadata.get('title'):
metadata['title'] = _('Untitled')
file_name = get_file_name(metadata['title'], metadata['mime_type'])
destination_path = os.path.join(metadata['mountpoint'], file_name)
if destination_path != file_path:
file_name = get_unique_file_name(metadata['mountpoint'], file_name)
destination_path = os.path.join(metadata['mountpoint'], file_name)
clean_name, extension_ = os.path.splitext(file_name)
metadata['title'] = clean_name
metadata_copy = metadata.copy()
metadata_copy.pop('mountpoint', None)
metadata_copy.pop('uid', None)
metadata_copy.pop('filesize', None)
metadata_dir_path = os.path.join(metadata['mountpoint'],
JOURNAL_METADATA_DIR)
if not os.path.exists(metadata_dir_path):
os.mkdir(metadata_dir_path)
# Set the HIDDEN attrib even when the metadata directory already
# exists for backward compatibility.
if not SugarExt.fat_set_hidden_attrib(metadata_dir_path):
logging.error('Could not set hidden attribute on %s' %
(metadata_dir_path))
preview = None
if 'preview' in metadata_copy:
preview = metadata_copy['preview']
preview_fname = file_name + '.preview'
metadata_copy.pop('preview', None)
try:
metadata_json = json.dumps(metadata_copy)
except (UnicodeDecodeError, EnvironmentError):
logging.error('Could not convert metadata to json.')
else:
(fh, fn) = tempfile.mkstemp(dir=metadata['mountpoint'])
os.write(fh, metadata_json)
os.close(fh)
os.rename(fn, os.path.join(metadata_dir_path, file_name + '.metadata'))
if preview:
(fh, fn) = tempfile.mkstemp(dir=metadata['mountpoint'])
os.write(fh, preview)
os.close(fh)
os.rename(fn, os.path.join(metadata_dir_path, preview_fname))
if not os.path.dirname(destination_path) == os.path.dirname(file_path):
shutil.copy(file_path, destination_path)
else:
_rename_entry_on_external_device(file_path, destination_path,
metadata_dir_path)
object_id = destination_path
created.send(None, object_id=object_id)
return object_id
def _write_entry_on_external_device(metadata, file_path, ready_callback=None):
"""Create and update an entry copied from the
DS to an external storage device.
Besides copying the associated file a file for the preview
and one for the metadata are stored in the hidden directory
.Sugar-Metadata.
This function handles renames of an entry on the
external device and avoids name collisions. Renames are
handled failsafe.
"""
def _ready_cb():
if ready_callback:
ready_callback(metadata, file_path, destination_path)
def _updated_cb(*args):
updated.send(None, object_id=destination_path)
_ready_cb()
def _splice_cb(*args):
created.send(None, object_id=destination_path)
_ready_cb()
if 'uid' in metadata and os.path.exists(metadata['uid']):
file_path = metadata['uid']
if not file_path or not os.path.exists(file_path):
raise ValueError('Entries without a file cannot be copied to '
'removable devices')
if not metadata.get('title'):
metadata['title'] = _('Untitled')
original_file_name = os.path.basename(file_path)
original_dir_name = os.path.dirname(file_path)
# if is a file in the exernal device or Documents
# and the title is equal to the file name don't change it
if original_file_name == metadata['title'] and \
original_dir_name.startswith(metadata['mountpoint']):
destination_path = file_path
file_name = original_file_name
else:
file_name = metadata['title']
# only change the extension if the title don't have a good extension
clean_name, extension = os.path.splitext(file_name)
extension = extension.replace('.', '').lower()
mime_extensions = mime.get_extensions_by_mimetype(
metadata['mime_type'])
if extension not in mime_extensions:
file_name = get_file_name(metadata['title'], metadata['mime_type'])
destination_path = os.path.join(metadata['mountpoint'], file_name)
if destination_path != file_path:
file_name = get_unique_file_name(metadata['mountpoint'], file_name)
destination_path = os.path.join(metadata['mountpoint'], file_name)
metadata['title'] = file_name
metadata_copy = metadata.copy()
metadata_copy.pop('mountpoint', None)
metadata_copy.pop('uid', None)
metadata_copy.pop('filesize', None)
metadata_dir_path = os.path.join(metadata['mountpoint'],
JOURNAL_METADATA_DIR)
# check if the file is in a subdirectory in Documents or device
if original_dir_name.startswith(metadata['mountpoint']) and \
original_dir_name != metadata['mountpoint']:
subdir = os.path.relpath(original_dir_name, metadata['mountpoint'])
metadata_dir_path = os.path.join(metadata_dir_path, subdir)
if not os.path.exists(metadata_dir_path):
os.makedirs(metadata_dir_path)
# Set the HIDDEN attrib even when the metadata directory already
# exists for backward compatibility; but don't set it in ~/Documents
if not metadata['mountpoint'] == get_documents_path():
if not SugarExt.fat_set_hidden_attrib(metadata_dir_path):
logging.error('Could not set hidden attribute on %s' %
(metadata_dir_path))
preview = None
if 'preview' in metadata_copy:
preview = metadata_copy['preview']
preview_fname = file_name + '.preview'
metadata_copy.pop('preview', None)
try:
metadata_json = json.dumps(metadata_copy)
except (UnicodeDecodeError, EnvironmentError):
logging.error('Could not convert metadata to json.')
else:
(fh, fn) = tempfile.mkstemp(dir=metadata['mountpoint'])
os.write(fh, metadata_json)
os.close(fh)
os.rename(fn, os.path.join(metadata_dir_path, file_name + '.metadata'))
if preview:
(fh, fn) = tempfile.mkstemp(dir=metadata['mountpoint'])
os.write(fh, preview)
os.close(fh)
os.rename(fn, os.path.join(metadata_dir_path, preview_fname))
if not os.path.dirname(destination_path) == os.path.dirname(file_path):
input_stream = Gio.File.new_for_path(file_path).read(None)
output_stream = Gio.File.new_for_path(destination_path)\
.append_to(Gio.FileCreateFlags.PRIVATE |
Gio.FileCreateFlags.REPLACE_DESTINATION, None)
# TODO: use Gio.File.copy_async, when implemented
output_stream.splice_async(
input_stream, Gio.OutputStreamSpliceFlags.CLOSE_SOURCE
| Gio.OutputStreamSpliceFlags.CLOSE_TARGET, GLib.PRIORITY_LOW,
None, _splice_cb, None)
else:
_rename_entry_on_external_device(file_path, destination_path,
metadata_dir_path)
_updated_cb()
def _write_entry_on_external_device(metadata, file_path):
"""Create and update an entry copied from the
DS to an external storage device.
Besides copying the associated file a file for the preview
and one for the metadata are stored in the hidden directory
.Sugar-Metadata.
This function handles renames of an entry on the
external device and avoids name collisions. Renames are
handled failsafe.
"""
if 'uid' in metadata and os.path.exists(metadata['uid']):
file_path = metadata['uid']
if not file_path or not os.path.exists(file_path):
raise ValueError('Entries without a file cannot be copied to '
'removable devices')
if not metadata.get('title'):
metadata['title'] = _('Untitled')
file_name = get_file_name(metadata['title'], metadata['mime_type'])
destination_path = os.path.join(metadata['mountpoint'], file_name)
if destination_path != file_path:
file_name = get_unique_file_name(metadata['mountpoint'], file_name)
destination_path = os.path.join(metadata['mountpoint'], file_name)
clean_name, extension_ = os.path.splitext(file_name)
metadata['title'] = clean_name
metadata_copy = metadata.copy()
metadata_copy.pop('mountpoint', None)
metadata_copy.pop('uid', None)
metadata_copy.pop('filesize', None)
metadata_dir_path = os.path.join(metadata['mountpoint'],
JOURNAL_METADATA_DIR)
if not os.path.exists(metadata_dir_path):
os.mkdir(metadata_dir_path)
# Set the HIDDEN attrib even when the metadata directory already
# exists for backward compatibility.
if not SugarExt.fat_set_hidden_attrib(metadata_dir_path):
logging.error('Could not set hidden attribute on %s' %
(metadata_dir_path))
preview = None
if 'preview' in metadata_copy:
preview = metadata_copy['preview']
preview_fname = file_name + '.preview'
metadata_copy.pop('preview', None)
try:
metadata_json = json.dumps(metadata_copy)
except (UnicodeDecodeError, EnvironmentError):
logging.error('Could not convert metadata to json.')
else:
(fh, fn) = tempfile.mkstemp(dir=metadata['mountpoint'])
os.write(fh, metadata_json)
os.close(fh)
os.rename(fn, os.path.join(metadata_dir_path, file_name + '.metadata'))
if preview:
(fh, fn) = tempfile.mkstemp(dir=metadata['mountpoint'])
os.write(fh, preview)
os.close(fh)
os.rename(fn, os.path.join(metadata_dir_path, preview_fname))
if not os.path.dirname(destination_path) == os.path.dirname(file_path):
shutil.copy(file_path, destination_path)
else:
_rename_entry_on_external_device(file_path, destination_path,
metadata_dir_path)
object_id = destination_path
created.send(None, object_id=object_id)
return object_id
