qvm-template: Initial GUI implementation.
This commit is contained in:
WillyPillow
parent
3e512bb7c3
commit
79b6d8f72c
405
qubesmanager/qvm_template_gui.py
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405
qubesmanager/qvm_template_gui.py
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import collections
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import concurrent
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import concurrent.futures
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import itertools
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import json
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import os
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import subprocess
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import typing
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import gi
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gi.require_version('Gtk', '3.0')
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#pylint: disable=wrong-import-position
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from gi.repository import GLib
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from gi.repository import Gtk
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from gi.repository import Pango
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BASE_CMD = ['qvm-template', '--enablerepo=*', '--yes', '--quiet']
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class Template(typing.NamedTuple):
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status: str
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name: str
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evr: str
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reponame: str
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size: int
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buildtime: str
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installtime: str
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licence: str
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url: str
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summary: str
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# --- internal ---
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description: str
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default_status: str
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weight: int
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model: Gtk.TreeModel
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# ----------------
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# XXX: Is there a better way of doing this?
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TYPES = [str, str, str, str, int, str, str, str,
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str, str, str, str, int, Gtk.TreeModel]
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COL_NAMES = [
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'Status',
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'Name',
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'Version',
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'Reponame',
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'Size (kB)',
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'Build Time',
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'Install Time',
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'License',
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'URL',
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'Summary']
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@staticmethod
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def build(status, entry, model):
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return Template(
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status,
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entry['name'],
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'%s:%s-%s' % (entry['epoch'], entry['version'], entry['release']),
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entry['reponame'],
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# XXX: This may overflow glib ints, though pretty unlikely in the
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# foreseeable future
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int(entry['size']) / 1000,
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entry['buildtime'],
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entry['installtime'],
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entry['license'],
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entry['url'],
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entry['summary'],
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entry['description'],
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status,
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Pango.Weight.BOOK,
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model
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)
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class Action(typing.NamedTuple):
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op: str
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name: str
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evr: str
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TYPES = [str, str, str]
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COL_NAMES = ['Operation', 'Name', 'Version']
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# TODO: Set default window sizes
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class ConfirmDialog(Gtk.Dialog):
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def __init__(self, parent, actions):
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super(ConfirmDialog, self).__init__(
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title='Confirmation', transient_for=parent, modal=True)
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self.add_buttons(
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Gtk.STOCK_CANCEL, Gtk.ResponseType.CANCEL,
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Gtk.STOCK_OK, Gtk.ResponseType.OK)
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box = self.get_content_area()
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self.msg = Gtk.Label()
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self.msg.set_markup((
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'<b>WARNING: Local changes made to the following'
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' templates will be overwritten! Continue?</b>'))
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box.add(self.msg)
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self.store = Gtk.ListStore(*Action.TYPES)
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self.listing = Gtk.TreeView(model=self.store)
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for idx, colname in enumerate(Action.COL_NAMES):
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renderer = Gtk.CellRendererText()
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col = Gtk.TreeViewColumn(colname, renderer, text=idx)
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self.listing.append_column(col)
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col.set_sort_column_id(idx)
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for row in actions:
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self.store.append(row)
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self.scrollable_listing = Gtk.ScrolledWindow()
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self.scrollable_listing.add(self.listing)
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box.pack_start(self.scrollable_listing, True, True, 16)
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self.show_all()
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class ProgressDialog(Gtk.Dialog):
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def __init__(self, parent):
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super(ProgressDialog, self).__init__(
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title='Processing...', transient_for=parent, modal=True)
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box = self.get_content_area()
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self.spinner = Gtk.Spinner()
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self.spinner.start()
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box.add(self.spinner)
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self.msg = Gtk.Label()
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self.msg.set_text('Processing...')
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box.add(self.msg)
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self.infobox = Gtk.TextView()
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self.scrollable = Gtk.ScrolledWindow()
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self.scrollable.add(self.infobox)
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box.pack_start(self.scrollable, True, True, 16)
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self.show_all()
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def finish(self, success):
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self.spinner.stop()
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if success:
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self.msg.set_text('Operations succeeded.')
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else:
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self.msg.set_markup('<b>Error:</b>')
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self.add_button(Gtk.STOCK_OK, Gtk.ResponseType.OK)
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self.run()
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class QubesTemplateApp(Gtk.Window):
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def __init__(self):
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super(QubesTemplateApp, self).__init__(title='Qubes Template Manager')
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self.iconsize = Gtk.IconSize.SMALL_TOOLBAR
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self.executor = concurrent.futures.ThreadPoolExecutor()
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self.outerbox = Gtk.Box(orientation=Gtk.Orientation.VERTICAL)
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self.__build_action_models()
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self.__build_toolbar()
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self.__build_listing()
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self.__build_infobox()
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self.add(self.outerbox)
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def __build_action_models(self):
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#pylint: disable=invalid-name
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OPS = [
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['Installed', 'Reinstall', 'Remove'],
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['Extra', 'Remove'],
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['Upgradable', 'Upgrade', 'Remove'],
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['Downgradable', 'Downgrade', 'Remove'],
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['Available', 'Install']
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]
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self.action_models = {}
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for ops in OPS:
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# First element is the default status for the certain class of
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# templates
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self.action_models[ops[0]] = Gtk.ListStore(str)
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for oper in ops:
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self.action_models[ops[0]].append([oper])
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def __build_toolbar(self):
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self.toolbar = Gtk.Toolbar()
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self.btn_refresh = Gtk.ToolButton(
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icon_widget=Gtk.Image.new_from_icon_name(
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'view-refresh', self.iconsize),
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label='Refresh')
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self.btn_refresh.connect('clicked', self.refresh)
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self.toolbar.insert(self.btn_refresh, 0)
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self.btn_install = Gtk.ToolButton(
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icon_widget=Gtk.Image.new_from_icon_name('go-down', self.iconsize),
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label='Apply')
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self.btn_install.connect('clicked', self.show_confirm)
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self.toolbar.insert(self.btn_install, 1)
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self.outerbox.pack_start(self.toolbar, False, True, 0)
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def __build_listing(self):
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self.store = Gtk.ListStore(*Template.TYPES)
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self.listing = Gtk.TreeView(model=self.store)
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self.cols = []
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for idx, colname in enumerate(Template.COL_NAMES):
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if colname == 'Status':
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renderer = Gtk.CellRendererCombo()
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renderer.set_property('editable', True)
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renderer.set_property('has-entry', False)
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renderer.set_property('text-column', 0)
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renderer.connect('edited', self.entry_edit)
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col = Gtk.TreeViewColumn(
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colname,
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renderer,
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text=idx,
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weight=len(Template.TYPES) - 2,
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model=len(Template.TYPES) - 1)
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else:
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renderer = Gtk.CellRendererText()
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col = Gtk.TreeViewColumn(
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colname,
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renderer,
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text=idx,
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weight=len(Template.TYPES) - 2)
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# Right-align for integers
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if Template.TYPES[idx] is int:
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renderer.set_property('xalign', 1.0)
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self.cols.append(col)
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self.listing.append_column(col)
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col.set_sort_column_id(idx)
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sel = self.listing.get_selection()
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sel.set_mode(Gtk.SelectionMode.MULTIPLE)
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sel.connect('changed', self.update_info)
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self.scrollable_listing = Gtk.ScrolledWindow()
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self.scrollable_listing.add(self.listing)
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self.scrollable_listing.set_visible(False)
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self.spinner = Gtk.Spinner()
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self.outerbox.pack_start(self.scrollable_listing, True, True, 0)
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self.outerbox.pack_start(self.spinner, True, True, 0)
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def __build_infobox(self):
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self.infobox = Gtk.TextView()
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self.outerbox.pack_start(self.infobox, True, True, 16)
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def refresh(self, button=None):
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# Ignore if we're already doing a refresh
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#pylint: disable=no-member
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if self.spinner.props.active:
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return
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self.scrollable_listing.set_visible(False)
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self.spinner.start()
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self.spinner.set_visible(True)
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self.store.clear()
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def worker():
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cmd = BASE_CMD[:]
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if button is not None:
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# Force refresh if triggered by button press
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cmd.append('--refresh')
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cmd.extend(['info', '--machine-readable-json', '--installed',
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'--available', '--upgrades', '--extras'])
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output = subprocess.check_output(cmd)
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# Default type is dict as we're going to replace the lists with
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# dicts shortly after
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tpls = collections.defaultdict(dict, json.loads(output))
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# Remove duplicates
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# Should this be done in qvm-template?
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# TODO: Merge templates with same name?
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# If so, we may need to have a separate UI to force versions.
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local_names = set(x['name'] for x in tpls['installed'])
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# Convert to dict for easier subtraction
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for key in tpls:
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tpls[key] = {
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(x['name'], x['epoch'], x['version'], x['release']): x
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for x in tpls[key]}
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tpls['installed'] = {
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k: v for k, v in tpls['installed'].items()
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if k not in tpls['extra'] and k not in tpls['upgradable']}
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tpls['available'] = {
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k: v for k, v in tpls['available'].items()
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if k not in tpls['installed']
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and k not in tpls['upgradable']}
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# If the package name is installed but the specific version is
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# neither installed or an upgrade, then it must be a downgrade
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tpls['downgradable'] = {
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k: v for k, v in tpls['available'].items()
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if k[0] in local_names}
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tpls['available'] = {
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k: v for k, v in tpls['available'].items()
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if k not in tpls['downgradable']}
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# Convert back to list
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for key in tpls:
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tpls[key] = list(tpls[key].values())
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for status, seq in tpls.items():
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status_str = status.title()
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for entry in seq:
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self.store.append(Template.build(
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status_str, entry, self.action_models[status_str]))
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def finish_cb(future):
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def callback():
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if future.exception() is not None:
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buf = self.infobox.get_buffer()
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buf.set_text('Error:\n' + str(future.exception()))
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self.spinner.set_visible(False)
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self.spinner.stop()
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self.scrollable_listing.set_visible(True)
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GLib.idle_add(callback)
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future = self.executor.submit(worker)
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future.add_done_callback(finish_cb)
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def show_confirm(self, button=None):
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_ = button # unused
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actions = []
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for row in self.store:
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tpl = Template(*row)
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if tpl.status != tpl.default_status:
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actions.append(Action(tpl.status, tpl.name, tpl.evr))
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dialog = ConfirmDialog(self, actions)
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resp = dialog.run()
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dialog.destroy()
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if resp == Gtk.ResponseType.OK:
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self.do_install(actions)
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def do_install(self, actions):
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dialog = ProgressDialog(self)
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def worker():
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actions.sort()
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for oper, grp in itertools.groupby(actions, lambda x: x[0]):
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oper = oper.lower()
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# No need to specify versions for local operations
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if oper in ('remove', 'purge'):
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specs = [x.name for x in grp]
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else:
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specs = [x.name + '-' + x.evr for x in grp]
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# FIXME: (C)Python versions before 3.9 fully-buffers stderr in
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# this context, cf. https://bugs.python.org/issue13601
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# Forcing it to be unbuffered for the time being so that
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# the messages can be displayed in time.
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envs = os.environ.copy()
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envs['PYTHONUNBUFFERED'] = '1'
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proc = subprocess.Popen(
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BASE_CMD + [oper, '--'] + specs,
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stdout=subprocess.PIPE,
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stderr=subprocess.STDOUT,
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text=True,
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bufsize=1,
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env=envs)
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#pylint: disable=cell-var-from-loop
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for line in iter(proc.stdout.readline, ''):
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# Need to modify the buffers in the main thread
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def callback():
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buf = dialog.infobox.get_buffer()
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end_iter = buf.get_end_iter()
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buf.insert(end_iter, line)
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GLib.idle_add(callback)
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if proc.wait() != 0:
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return False
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return True
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def finish_cb(future):
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def callback():
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dialog.finish(future.result())
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dialog.destroy()
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self.refresh()
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GLib.idle_add(callback)
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future = self.executor.submit(worker)
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future.add_done_callback(finish_cb)
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def update_info(self, sel):
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model, treeiters = sel.get_selected_rows()
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if not treeiters:
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return
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buf = self.infobox.get_buffer()
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if len(treeiters) > 1:
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def row_to_spec(row):
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tpl = Template(*row)
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return tpl.name + '-' + tpl.evr
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text = '\n'.join(row_to_spec(model[it]) for it in treeiters)
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buf.set_text('Selected templates:\n' + text)
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else:
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itr = treeiters[0]
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tpl = Template(*model[itr])
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text = 'Name: %s\n\nDescription:\n%s' % (tpl.name, tpl.description)
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buf.set_text(text)
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def entry_edit(self, widget, path, text):
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_ = widget # unused
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#pylint: disable=unsubscriptable-object
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tpl = Template(*self.store[path])
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tpl = tpl._replace(status=text)
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if text == tpl.default_status:
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tpl = tpl._replace(weight=Pango.Weight.BOOK)
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else:
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tpl = tpl._replace(weight=Pango.Weight.BOLD)
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#pylint: disable=unsupported-assignment-operation
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self.store[path] = tpl
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if __name__ == '__main__':
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main = QubesTemplateApp()
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main.connect('destroy', Gtk.main_quit)
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main.show_all()
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main.refresh()
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Gtk.main()
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