Remove the Nautilus extension
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jvoisin
parent
29057d6cdf
commit
6479d869e4
@ -18,7 +18,6 @@ linting:bandit:
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stage: linting
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script: # TODO: remove B405 and B314
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- bandit ./mat2 --format txt --skip B101
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- bandit -r ./nautilus/ --format txt --skip B101
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- bandit -r ./libmat2 --format txt --skip B101,B404,B603,B405,B314,B108,B311
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linting:codespell:
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@ -35,14 +34,12 @@ linting:pylint:
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stage: linting
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script:
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- pylint --disable=no-else-return,no-else-raise,no-else-continue,unnecessary-comprehension,raise-missing-from,unsubscriptable-object,use-dict-literal,unspecified-encoding,consider-using-f-string,use-list-literal,too-many-statements --extension-pkg-whitelist=cairo,gi ./libmat2 ./mat2
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# Once nautilus-python is in Debian, decomment it form the line below
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- pylint --disable=no-else-return,no-else-raise,no-else-continue,unnecessary-comprehension,raise-missing-from,unsubscriptable-object,use-list-literal --extension-pkg-whitelist=Nautilus,GObject,Gtk,Gio,GLib,gi ./nautilus/mat2.py
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linting:mypy:
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image: $CONTAINER_REGISTRY:linting
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stage: linting
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script:
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- mypy --ignore-missing-imports mat2 libmat2/*.py ./nautilus/mat2.py
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- mypy --ignore-missing-imports mat2 libmat2/*.py
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tests:archlinux:
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image: $CONTAINER_REGISTRY:archlinux
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@ -34,20 +34,16 @@ apt install mat2
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Thanks to [atenart](https://ack.tf/), there is a package available on
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[Fedora's copr]( https://copr.fedorainfracloud.org/coprs/atenart/mat2/ ).
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We use copr (cool other packages repo) as the mat2 Nautilus plugin depends on
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python3-nautilus, which isn't available yet in Fedora (but is distributed
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through this copr).
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First you need to enable mat2's copr:
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```
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dnf -y copr enable atenart/mat2
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```
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Then you can install both the mat2 command and Nautilus extension:
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Then you can install mat2:
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```
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dnf -y install mat2 mat2-nautilus
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dnf -y install mat2
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```
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## Gentoo
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11
README.md
11
README.md
@ -22,9 +22,14 @@ Maybe you don't want to disclose those information.
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This is precisely the job of mat2: getting rid, as much as possible, of
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metadata.
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mat2 provides a command line tool, and graphical user interfaces via a service
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menu for Dolphin, the default file manager of KDE, and an extension for
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Nautilus, the default file manager of GNOME.
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mat2 provides:
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- a library called `libmat2`;
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- a command line tool called `mat2`,
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- a service menu for Dolphin, KDE's default file manager
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If you prefer a regular graphical user interface, you might be interested in
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[Metadata Cleaner](https://metadatacleaner.romainvigier.fr/), which is using
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`mat2` under the hood.
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# Requirements
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@ -1,15 +0,0 @@
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# mat2's Nautilus extension
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# Dependencies
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- Nautilus (now known as [Files](https://wiki.gnome.org/action/show/Apps/Files))
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- [nautilus-python](https://gitlab.gnome.org/GNOME/nautilus-python) >= 2.10
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# Installation
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Simply copy the `mat2.py` file to `~/.local/share/nautilus-python/extensions`,
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and launch Nautilus; you should now have a "Remove metadata" item in the
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right-click menu on supported files.
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Please note: This is not needed if using a distribution provided package. It
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only applies if installing from source.
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247
nautilus/mat2.py
247
nautilus/mat2.py
@ -1,247 +0,0 @@
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#!/usr/bin/env python3
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"""
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Because writing GUI is non-trivial (cf. https://0xacab.org/jvoisin/mat2/issues/3),
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we decided to write a Nautilus extension instead
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(cf. https://0xacab.org/jvoisin/mat2/issues/2).
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The code is a little bit convoluted because Gtk isn't thread-safe,
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so we're not allowed to call anything Gtk-related outside of the main
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thread, so we'll have to resort to using a `queue` to pass "messages" around.
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"""
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# pylint: disable=no-name-in-module,unused-argument,import-error
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import queue
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import threading
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from typing import Tuple, Optional, List
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from urllib.parse import unquote
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import gettext
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import gi
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gi.require_version('Nautilus', '3.0')
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gi.require_version('Gtk', '3.0')
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gi.require_version('GdkPixbuf', '2.0')
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from gi.repository import Nautilus, GObject, Gtk, Gio, GLib, GdkPixbuf
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from libmat2 import parser_factory
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_ = gettext.gettext
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def _remove_metadata(fpath) -> Tuple[bool, Optional[str]]:
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""" This is a simple wrapper around libmat2, because it's
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easier and cleaner this way.
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"""
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parser, mtype = parser_factory.get_parser(fpath)
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if parser is None:
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return False, mtype
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return parser.remove_all(), mtype
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class Mat2Extension(GObject.GObject, Nautilus.MenuProvider, Nautilus.LocationWidgetProvider):
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""" This class adds an item to the right-click menu in Nautilus. """
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def __init__(self):
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super().__init__()
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self.infobar_hbox = None
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self.infobar = None
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self.failed_items = list()
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def __infobar_failure(self):
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""" Add an hbox to the `infobar` warning about the fact that we didn't
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manage to remove the metadata from every single file.
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"""
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self.infobar.set_show_close_button(True)
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self.infobar_hbox = Gtk.Box(orientation=Gtk.Orientation.HORIZONTAL)
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btn = Gtk.Button(_("Show"))
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btn.connect("clicked", self.__cb_show_failed)
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self.infobar_hbox.pack_end(btn, False, False, 0)
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infobar_msg = Gtk.Label(_("Failed to clean some items"))
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self.infobar_hbox.pack_start(infobar_msg, False, False, 0)
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self.infobar.get_content_area().pack_start(self.infobar_hbox, True, True, 0)
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self.infobar.show_all()
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def get_widget(self, uri, window) -> Gtk.Widget:
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""" This is the method that we have to implement (because we're
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a LocationWidgetProvider) in order to show our infobar.
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"""
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self.infobar = Gtk.InfoBar()
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self.infobar.set_message_type(Gtk.MessageType.ERROR)
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self.infobar.connect("response", self.__cb_infobar_response)
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return self.infobar
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def __cb_infobar_response(self, infobar, response):
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""" Callback for the infobar close button.
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"""
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if response == Gtk.ResponseType.CLOSE:
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self.infobar_hbox.destroy()
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self.infobar.hide()
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def __cb_show_failed(self, button):
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""" Callback to show a popup containing a list of files
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that we didn't manage to clean.
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"""
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# FIXME this should be done only once the window is destroyed
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self.infobar_hbox.destroy()
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self.infobar.hide()
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window = Gtk.Window()
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headerbar = Gtk.HeaderBar()
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window.set_titlebar(headerbar)
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headerbar.props.title = _("Metadata removal failed")
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close_buton = Gtk.Button(_("Close"))
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close_buton.connect("clicked", lambda _: window.close())
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headerbar.pack_end(close_buton)
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box = Gtk.Box(orientation=Gtk.Orientation.VERTICAL)
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window.add(box)
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box.add(self.__create_treeview())
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window.show_all()
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@staticmethod
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def __validate(fileinfo) -> Tuple[bool, str]:
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""" Validate if a given file FileInfo `fileinfo` can be processed.
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Returns a boolean, and a textreason why"""
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if fileinfo.get_uri_scheme() != "file" or fileinfo.is_directory():
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return False, _("Not a file")
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elif not fileinfo.can_write():
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return False, _("Not writeable")
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return True, ""
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def __create_treeview(self) -> Gtk.TreeView:
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liststore = Gtk.ListStore(GdkPixbuf.Pixbuf, str, str)
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treeview = Gtk.TreeView(model=liststore)
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renderer_pixbuf = Gtk.CellRendererPixbuf()
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column_pixbuf = Gtk.TreeViewColumn("Icon", renderer_pixbuf, pixbuf=0)
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treeview.append_column(column_pixbuf)
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for idx, name in enumerate([_('File'), _('Reason')]):
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renderer_text = Gtk.CellRendererText()
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column_text = Gtk.TreeViewColumn(name, renderer_text, text=idx+1)
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treeview.append_column(column_text)
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for (fname, mtype, reason) in self.failed_items:
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# This part is all about adding mimetype icons to the liststore
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icon = Gio.content_type_get_icon('text/plain' if not mtype else mtype)
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# in case we don't have the corresponding icon,
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# we're adding `text/plain`, because we have this one for sure™
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names = icon.get_names() + ['text/plain', ]
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icon_theme = Gtk.IconTheme.get_default()
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for name in names:
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try:
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img = icon_theme.load_icon(name, Gtk.IconSize.BUTTON, 0)
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break
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except GLib.GError:
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pass
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liststore.append([img, fname, reason])
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treeview.show_all()
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return treeview
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def __create_progressbar(self) -> Gtk.ProgressBar:
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""" Create the progressbar used to notify that files are currently
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being processed.
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"""
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self.infobar.set_show_close_button(False)
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self.infobar.set_message_type(Gtk.MessageType.INFO)
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self.infobar_hbox = Gtk.Box(orientation=Gtk.Orientation.HORIZONTAL)
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progressbar = Gtk.ProgressBar()
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self.infobar_hbox.pack_start(progressbar, True, True, 0)
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progressbar.set_show_text(True)
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self.infobar.get_content_area().pack_start(self.infobar_hbox, True, True, 0)
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self.infobar.show_all()
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return progressbar
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def __update_progressbar(self, processing_queue, progressbar) -> bool:
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""" This method is run via `Glib.add_idle` to update the progressbar."""
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try:
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fname = processing_queue.get(block=False)
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except queue.Empty:
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return True
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# `None` is the marker put in the queue to signal that every selected
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# file was processed.
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if fname is None:
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self.infobar_hbox.destroy()
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self.infobar.hide()
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if self.failed_items:
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self.__infobar_failure()
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if not processing_queue.empty():
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print("Something went wrong, the queue isn't empty :/")
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return False
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progressbar.pulse()
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progressbar.set_text(_("Cleaning %s") % fname)
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progressbar.show_all()
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self.infobar_hbox.show_all()
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self.infobar.show_all()
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return True
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def __clean_files(self, files: list, processing_queue: queue.Queue) -> bool:
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""" This method is threaded in order to avoid blocking the GUI
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while cleaning up the files.
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"""
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for fileinfo in files:
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fname = fileinfo.get_name()
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processing_queue.put(fname)
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valid, reason = self.__validate(fileinfo)
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if not valid:
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self.failed_items.append((fname, None, reason))
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continue
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fpath = unquote(fileinfo.get_uri()[7:]) # `len('file://') = 7`
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success, mtype = _remove_metadata(fpath)
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if not success:
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self.failed_items.append((fname, mtype, _('Unsupported/invalid')))
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processing_queue.put(None) # signal that we processed all the files
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return True
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def __cb_menu_activate(self, menu, files):
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""" This method is called when the user clicked the "clean metadata"
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menu item.
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"""
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self.failed_items = list()
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progressbar = self.__create_progressbar()
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progressbar.set_pulse_step = 1.0 / len(files)
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self.infobar.show_all()
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processing_queue = queue.Queue()
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GLib.idle_add(self.__update_progressbar, processing_queue, progressbar)
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thread = threading.Thread(target=self.__clean_files, args=(files, processing_queue))
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thread.daemon = True
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thread.start()
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def get_background_items(self, window, file):
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""" https://bugzilla.gnome.org/show_bug.cgi?id=784278 """
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return None
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def get_file_items(self, window, files) -> Optional[List[Nautilus.MenuItem]]:
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""" This method is the one allowing us to create a menu item.
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"""
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# Do not show the menu item if not a single file has a chance to be
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# processed by mat2.
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if not any((is_valid for (is_valid, _) in map(self.__validate, files))):
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return None
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item = Nautilus.MenuItem(
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name="mat2::Remove_metadata",
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label=_("Remove metadata"),
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tip=_("Remove metadata")
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)
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item.connect('activate', self.__cb_menu_activate, files)
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return [item, ]
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