import collections
import concurrent
import concurrent.futures
import itertools
import json
import os
import subprocess
import typing
import gi
gi.require_version('Gtk', '3.0')
#pylint: disable=wrong-import-position
from gi.repository import GLib
from gi.repository import Gtk
from gi.repository import Pango
BASE_CMD = ['qvm-template', '--enablerepo=*', '--yes', '--quiet']
class Template(typing.NamedTuple):
status: str
name: str
evr: str
reponame: str
size: int
buildtime: str
installtime: str
licence: str
url: str
summary: str
# --- internal ---
description: str
default_status: str
weight: int
model: Gtk.TreeModel
# ----------------
# XXX: Is there a better way of doing this?
TYPES = [str, str, str, str, int, str, str, str,
str, str, str, str, int, Gtk.TreeModel]
COL_NAMES = [
'Status',
'Name',
'Version',
'Reponame',
'Size (kB)',
'Build Time',
'Install Time',
'License',
'URL',
'Summary']
@staticmethod
def build(status, entry, model):
return Template(
status,
entry['name'],
'%s:%s-%s' % (entry['epoch'], entry['version'], entry['release']),
entry['reponame'],
# XXX: This may overflow glib ints, though pretty unlikely in the
# foreseeable future
int(entry['size']) / 1000,
entry['buildtime'],
entry['installtime'],
entry['license'],
entry['url'],
entry['summary'],
entry['description'],
status,
Pango.Weight.BOOK,
model
)
class Action(typing.NamedTuple):
op: str
name: str
evr: str
TYPES = [str, str, str]
COL_NAMES = ['Operation', 'Name', 'Version']
# TODO: Set default window sizes
class ConfirmDialog(Gtk.Dialog):
def __init__(self, parent, actions):
super(ConfirmDialog, self).__init__(
title='Confirmation', transient_for=parent, modal=True)
self.add_buttons(
Gtk.STOCK_CANCEL, Gtk.ResponseType.CANCEL,
Gtk.STOCK_OK, Gtk.ResponseType.OK)
box = self.get_content_area()
self.msg = Gtk.Label()
self.msg.set_markup((
'WARNING: Local changes made to the following'
' templates will be overwritten! Continue?'))
box.add(self.msg)
self.store = Gtk.ListStore(*Action.TYPES)
self.listing = Gtk.TreeView(model=self.store)
for idx, colname in enumerate(Action.COL_NAMES):
renderer = Gtk.CellRendererText()
col = Gtk.TreeViewColumn(colname, renderer, text=idx)
self.listing.append_column(col)
col.set_sort_column_id(idx)
for row in actions:
self.store.append(row)
self.scrollable_listing = Gtk.ScrolledWindow()
self.scrollable_listing.add(self.listing)
box.pack_start(self.scrollable_listing, True, True, 16)
self.show_all()
class ProgressDialog(Gtk.Dialog):
def __init__(self, parent):
super(ProgressDialog, self).__init__(
title='Processing...', transient_for=parent, modal=True)
box = self.get_content_area()
self.spinner = Gtk.Spinner()
self.spinner.start()
box.add(self.spinner)
self.msg = Gtk.Label()
self.msg.set_text('Processing...')
box.add(self.msg)
self.infobox = Gtk.TextView()
self.scrollable = Gtk.ScrolledWindow()
self.scrollable.add(self.infobox)
box.pack_start(self.scrollable, True, True, 16)
self.show_all()
def finish(self, success):
self.spinner.stop()
if success:
self.msg.set_text('Operations succeeded.')
else:
self.msg.set_markup('Error:')
self.add_button(Gtk.STOCK_OK, Gtk.ResponseType.OK)
self.run()
class QubesTemplateApp(Gtk.Window):
def __init__(self):
super(QubesTemplateApp, self).__init__(title='Qubes Template Manager')
self.iconsize = Gtk.IconSize.SMALL_TOOLBAR
self.executor = concurrent.futures.ThreadPoolExecutor()
self.outerbox = Gtk.Box(orientation=Gtk.Orientation.VERTICAL)
self.__build_action_models()
self.__build_toolbar()
self.__build_listing()
self.__build_infobox()
self.add(self.outerbox)
def __build_action_models(self):
#pylint: disable=invalid-name
OPS = [
['Installed', 'Reinstall', 'Remove'],
['Extra', 'Remove'],
['Upgradable', 'Upgrade', 'Remove'],
['Downgradable', 'Downgrade', 'Remove'],
['Available', 'Install']
]
self.action_models = {}
for ops in OPS:
# First element is the default status for the certain class of
# templates
self.action_models[ops[0]] = Gtk.ListStore(str)
for oper in ops:
self.action_models[ops[0]].append([oper])
def __build_toolbar(self):
self.toolbar = Gtk.Toolbar()
self.btn_refresh = Gtk.ToolButton(
icon_widget=Gtk.Image.new_from_icon_name(
'view-refresh', self.iconsize),
label='Refresh')
self.btn_refresh.connect('clicked', self.refresh)
self.toolbar.insert(self.btn_refresh, 0)
self.btn_install = Gtk.ToolButton(
icon_widget=Gtk.Image.new_from_icon_name('go-down', self.iconsize),
label='Apply')
self.btn_install.connect('clicked', self.show_confirm)
self.toolbar.insert(self.btn_install, 1)
self.outerbox.pack_start(self.toolbar, False, True, 0)
def __build_listing(self):
self.store = Gtk.ListStore(*Template.TYPES)
self.listing = Gtk.TreeView(model=self.store)
self.cols = []
for idx, colname in enumerate(Template.COL_NAMES):
if colname == 'Status':
renderer = Gtk.CellRendererCombo()
renderer.set_property('editable', True)
renderer.set_property('has-entry', False)
renderer.set_property('text-column', 0)
renderer.connect('edited', self.entry_edit)
col = Gtk.TreeViewColumn(
colname,
renderer,
text=idx,
weight=len(Template.TYPES) - 2,
model=len(Template.TYPES) - 1)
else:
renderer = Gtk.CellRendererText()
col = Gtk.TreeViewColumn(
colname,
renderer,
text=idx,
weight=len(Template.TYPES) - 2)
# Right-align for integers
if Template.TYPES[idx] is int:
renderer.set_property('xalign', 1.0)
self.cols.append(col)
self.listing.append_column(col)
col.set_sort_column_id(idx)
sel = self.listing.get_selection()
sel.set_mode(Gtk.SelectionMode.MULTIPLE)
sel.connect('changed', self.update_info)
self.scrollable_listing = Gtk.ScrolledWindow()
self.scrollable_listing.add(self.listing)
self.scrollable_listing.set_visible(False)
self.spinner = Gtk.Spinner()
self.outerbox.pack_start(self.scrollable_listing, True, True, 0)
self.outerbox.pack_start(self.spinner, True, True, 0)
def __build_infobox(self):
self.infobox = Gtk.TextView()
self.outerbox.pack_start(self.infobox, True, True, 16)
def refresh(self, button=None):
# Ignore if we're already doing a refresh
#pylint: disable=no-member
if self.spinner.props.active:
return
self.scrollable_listing.set_visible(False)
self.spinner.start()
self.spinner.set_visible(True)
self.store.clear()
def worker():
cmd = BASE_CMD[:]
if button is not None:
# Force refresh if triggered by button press
cmd.append('--refresh')
cmd.extend(['info', '--machine-readable-json', '--installed',
'--available', '--upgrades', '--extras'])
output = subprocess.check_output(cmd)
# Default type is dict as we're going to replace the lists with
# dicts shortly after
tpls = collections.defaultdict(dict, json.loads(output))
# Remove duplicates
# Should this be done in qvm-template?
# TODO: Merge templates with same name?
# If so, we may need to have a separate UI to force versions.
local_names = set(x['name'] for x in tpls['installed'])
# Convert to dict for easier subtraction
for key in tpls:
tpls[key] = {
(x['name'], x['epoch'], x['version'], x['release']): x
for x in tpls[key]}
tpls['installed'] = {
k: v for k, v in tpls['installed'].items()
if k not in tpls['extra'] and k not in tpls['upgradable']}
tpls['available'] = {
k: v for k, v in tpls['available'].items()
if k not in tpls['installed']
and k not in tpls['upgradable']}
# If the package name is installed but the specific version is
# neither installed or an upgrade, then it must be a downgrade
tpls['downgradable'] = {
k: v for k, v in tpls['available'].items()
if k[0] in local_names}
tpls['available'] = {
k: v for k, v in tpls['available'].items()
if k not in tpls['downgradable']}
# Convert back to list
for key in tpls:
tpls[key] = list(tpls[key].values())
for status, seq in tpls.items():
status_str = status.title()
for entry in seq:
self.store.append(Template.build(
status_str, entry, self.action_models[status_str]))
def finish_cb(future):
def callback():
if future.exception() is not None:
buf = self.infobox.get_buffer()
buf.set_text('Error:\n' + str(future.exception()))
self.spinner.set_visible(False)
self.spinner.stop()
self.scrollable_listing.set_visible(True)
GLib.idle_add(callback)
future = self.executor.submit(worker)
future.add_done_callback(finish_cb)
def show_confirm(self, button=None):
_ = button # unused
actions = []
for row in self.store:
tpl = Template(*row)
if tpl.status != tpl.default_status:
actions.append(Action(tpl.status, tpl.name, tpl.evr))
dialog = ConfirmDialog(self, actions)
resp = dialog.run()
dialog.destroy()
if resp == Gtk.ResponseType.OK:
self.do_install(actions)
def do_install(self, actions):
dialog = ProgressDialog(self)
def worker():
actions.sort()
for oper, grp in itertools.groupby(actions, lambda x: x[0]):
oper = oper.lower()
# No need to specify versions for local operations
if oper in ('remove', 'purge'):
specs = [x.name for x in grp]
else:
specs = [x.name + '-' + x.evr for x in grp]
# FIXME: (C)Python versions before 3.9 fully-buffers stderr in
# this context, cf. https://bugs.python.org/issue13601
# Forcing it to be unbuffered for the time being so that
# the messages can be displayed in time.
envs = os.environ.copy()
envs['PYTHONUNBUFFERED'] = '1'
proc = subprocess.Popen(
BASE_CMD + [oper, '--'] + specs,
stdout=subprocess.PIPE,
stderr=subprocess.STDOUT,
text=True,
bufsize=1,
env=envs)
#pylint: disable=cell-var-from-loop
for line in iter(proc.stdout.readline, ''):
# Need to modify the buffers in the main thread
def callback():
buf = dialog.infobox.get_buffer()
end_iter = buf.get_end_iter()
buf.insert(end_iter, line)
GLib.idle_add(callback)
if proc.wait() != 0:
return False
return True
def finish_cb(future):
def callback():
dialog.finish(future.result())
dialog.destroy()
self.refresh()
GLib.idle_add(callback)
future = self.executor.submit(worker)
future.add_done_callback(finish_cb)
def update_info(self, sel):
model, treeiters = sel.get_selected_rows()
if not treeiters:
return
buf = self.infobox.get_buffer()
if len(treeiters) > 1:
def row_to_spec(row):
tpl = Template(*row)
return tpl.name + '-' + tpl.evr
text = '\n'.join(row_to_spec(model[it]) for it in treeiters)
buf.set_text('Selected templates:\n' + text)
else:
itr = treeiters[0]
tpl = Template(*model[itr])
text = 'Name: %s\n\nDescription:\n%s' % (tpl.name, tpl.description)
buf.set_text(text)
def entry_edit(self, widget, path, text):
_ = widget # unused
#pylint: disable=unsubscriptable-object
tpl = Template(*self.store[path])
tpl = tpl._replace(status=text)
if text == tpl.default_status:
tpl = tpl._replace(weight=Pango.Weight.BOOK)
else:
tpl = tpl._replace(weight=Pango.Weight.BOLD)
#pylint: disable=unsupported-assignment-operation
self.store[path] = tpl
if __name__ == '__main__':
main = QubesTemplateApp()
main.connect('destroy', Gtk.main_quit)
main.show_all()
main.refresh()
Gtk.main()