systemadm.vala

   1 using Gtk;
   2 using GLib;
   3 using DBus;
   4 using Pango;
   5
   6 public class LeftLabel : Label {
   7         public LeftLabel(string? text = null) {
   8                 if (text != null)
   9                         set_markup("<b>%s</b>".printf(text));
  10                 set_alignment(1, 0);
  11                 set_padding(6, 0);
  12         }
  13 }
  14
  15 public class RightLabel : Label {
  16         public RightLabel(string? text = null) {
  17                 set_text_or_na(text);
  18                 set_alignment(0, 1);
  19                 set_ellipsize(EllipsizeMode.START);
  20                 set_selectable(true);
  21         }
  22
  23         public void set_text_or_na(string? text = null) {
  24                 if (text == null || text == "")
  25                         set_markup("<i>n/a</i>");
  26                 else
  27                         set_text(text);
  28         }
  29 }
  30
  31 public class MainWindow : Window {
  32
  33         private TreeView unit_view;
  34         private TreeView job_view;
  35
  36         private ListStore unit_model;
  37         private ListStore job_model;
  38
  39         private Button start_button;
  40         private Button stop_button;
  41         private Button restart_button;
  42         private Button reload_button;
  43         private Button cancel_button;
  44
  45         private Connection bus;
  46         private Manager manager;
  47
  48         private RightLabel unit_id_label;
  49         private RightLabel unit_description_label;
  50         private RightLabel unit_load_state_label;
  51         private RightLabel unit_active_state_label;
  52         private RightLabel unit_load_path_label;
  53         private RightLabel unit_active_enter_timestamp_label;
  54         private RightLabel unit_active_exit_timestamp_label;
  55         private RightLabel unit_can_start_label;
  56         private RightLabel unit_can_reload_label;
  57
  58         private RightLabel job_id_label;
  59         private RightLabel job_state_label;
  60         private RightLabel job_type_label;
  61
  62         public MainWindow() throws DBus.Error {
  63                 title = "systemdadm";
  64                 position = WindowPosition.CENTER;
  65                 set_default_size(1000, 700);
  66                 set_border_width(12);
  67                 destroy.connect(Gtk.main_quit);
  68
  69                 Notebook notebook = new Notebook();
  70                 add(notebook);
  71
  72                 Box unit_vbox = new VBox(false, 6);
  73                 notebook.append_page(unit_vbox, new Label("Units"));
  74                 unit_vbox.set_border_width(12);
  75
  76                 Box job_vbox = new VBox(false, 6);
  77                 notebook.append_page(job_vbox, new Label("Jobs"));
  78                 job_vbox.set_border_width(12);
  79
  80
  81                 unit_model = new ListStore(6, typeof(string), typeof(string), typeof(string), typeof(string), typeof(string), typeof(string), typeof(string));
  82                 job_model = new ListStore(5, typeof(string), typeof(string), typeof(string), typeof(string), typeof(string), typeof(string));
  83
  84                 unit_view = new TreeView.with_model(unit_model);
  85                 job_view = new TreeView.with_model(job_model);
  86
  87                 unit_view.cursor_changed.connect(unit_changed);
  88                 job_view.cursor_changed.connect(job_changed);
  89
  90                 unit_view.insert_column_with_attributes(-1, "Unit", new CellRendererText(), "text", 0);
  91                 unit_view.insert_column_with_attributes(-1, "Description", new CellRendererText(), "text", 1);
  92                 unit_view.insert_column_with_attributes(-1, "Load State", new CellRendererText(), "text", 2);
  93                 unit_view.insert_column_with_attributes(-1, "Active State", new CellRendererText(), "text", 3);
  94                 unit_view.insert_column_with_attributes(-1, "Job", new CellRendererText(), "text", 4);
  95
  96                 job_view.insert_column_with_attributes(-1, "Job", new CellRendererText(), "text", 0);
  97                 job_view.insert_column_with_attributes(-1, "Unit", new CellRendererText(), "text", 1);
  98                 job_view.insert_column_with_attributes(-1, "Type", new CellRendererText(), "text", 2);
  99                 job_view.insert_column_with_attributes(-1, "State", new CellRendererText(), "text", 3);
 100
 101                 ScrolledWindow scroll = new ScrolledWindow(null, null);
 102                 scroll.set_policy(PolicyType.AUTOMATIC, PolicyType.AUTOMATIC);
 103                 scroll.set_shadow_type(ShadowType.IN);
 104                 scroll.add(unit_view);
 105                 unit_vbox.pack_start(scroll, true, true, 0);
 106
 107                 scroll = new ScrolledWindow(null, null);
 108                 scroll.set_policy(PolicyType.AUTOMATIC, PolicyType.AUTOMATIC);
 109                 scroll.set_shadow_type(ShadowType.IN);
 110                 scroll.add(job_view);
 111                 job_vbox.pack_start(scroll, true, true, 0);
 112
 113                 unit_id_label = new RightLabel();
 114                 unit_description_label = new RightLabel();
 115                 unit_load_state_label = new RightLabel();
 116                 unit_active_state_label = new RightLabel();
 117                 unit_load_path_label = new RightLabel();
 118                 unit_active_enter_timestamp_label = new RightLabel();
 119                 unit_active_exit_timestamp_label = new RightLabel();
 120                 unit_can_start_label = new RightLabel();
 121                 unit_can_reload_label = new RightLabel();
 122
 123                 job_id_label = new RightLabel();
 124                 job_state_label = new RightLabel();
 125                 job_type_label = new RightLabel();
 126
 127                 Table unit_table = new Table(9, 2, false);
 128                 unit_table.set_row_spacings(6);
 129                 unit_table.set_border_width(12);
 130                 unit_vbox.pack_start(unit_table, false, true, 0);
 131
 132                 Table job_table = new Table(2, 2, false);
 133                 job_table.set_row_spacings(6);
 134                 job_table.set_border_width(12);
 135                 job_vbox.pack_start(job_table, false, true, 0);
 136
 137                 unit_table.attach(new LeftLabel("Id:"), 0, 1, 0, 1, AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 138                 unit_table.attach(unit_id_label, 1, 2, 0, 1, AttachOptions.EXPAND|AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 139                 unit_table.attach(new LeftLabel("Description:"), 0, 1, 1, 2, AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 140                 unit_table.attach(unit_description_label, 1, 2, 1, 2, AttachOptions.EXPAND|AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 141                 unit_table.attach(new LeftLabel("Load State:"), 0, 1, 2, 3, AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 142                 unit_table.attach(unit_load_state_label, 1, 2, 2, 3, AttachOptions.EXPAND|AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 143                 unit_table.attach(new LeftLabel("Active State:"), 0, 1, 3, 4, AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 144                 unit_table.attach(unit_active_state_label, 1, 2, 3, 4, AttachOptions.EXPAND|AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 145                 unit_table.attach(new LeftLabel("Load Path:"), 0, 1, 4, 5, AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 146                 unit_table.attach(unit_load_path_label, 1, 2, 4, 5, AttachOptions.EXPAND|AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 147                 unit_table.attach(new LeftLabel("Active Enter Timestamp:"), 0, 1, 5, 6, AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 148                 unit_table.attach(unit_active_enter_timestamp_label, 1, 2, 5, 6, AttachOptions.EXPAND|AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 149                 unit_table.attach(new LeftLabel("Active Exit Timestamp:"), 0, 1, 6, 7, AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 150                 unit_table.attach(unit_active_exit_timestamp_label, 1, 2, 6, 7, AttachOptions.EXPAND|AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 151                 unit_table.attach(new LeftLabel("Can Start/Stop:"), 0, 1, 7, 8, AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 152                 unit_table.attach(unit_can_start_label, 1, 2, 7, 8, AttachOptions.EXPAND|AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 153                 unit_table.attach(new LeftLabel("Can Reload:"), 0, 1, 8, 9, AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 154                 unit_table.attach(unit_can_reload_label, 1, 2, 8, 9, AttachOptions.EXPAND|AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 155
 156                 job_table.attach(new LeftLabel("Id:"), 0, 1, 0, 1, AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 157                 job_table.attach(job_id_label, 1, 2, 0, 1, AttachOptions.EXPAND|AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 158                 job_table.attach(new LeftLabel("State:"), 0, 1, 1, 2, AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 159                 job_table.attach(job_state_label, 1, 2, 1, 2, AttachOptions.EXPAND|AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 160                 job_table.attach(new LeftLabel("Type:"), 0, 1, 2, 3, AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 161                 job_table.attach(job_type_label, 1, 2, 2, 3, AttachOptions.EXPAND|AttachOptions.FILL, AttachOptions.FILL, 0, 0);
 162
 163                 ButtonBox bbox = new HButtonBox();
 164                 bbox.set_layout(ButtonBoxStyle.START);
 165                 bbox.set_spacing(6);
 166                 unit_vbox.pack_start(bbox, false, true, 0);
 167
 168                 start_button = new Button.with_mnemonic("_Start");
 169                 stop_button = new Button.with_mnemonic("Sto_p");
 170                 reload_button = new Button.with_mnemonic("_Reload");
 171                 restart_button = new Button.with_mnemonic("Res_tart");
 172
 173                 start_button.clicked.connect(on_start);
 174                 stop_button.clicked.connect(on_stop);
 175                 reload_button.clicked.connect(on_reload);
 176                 restart_button.clicked.connect(on_restart);
 177
 178                 bbox.pack_start(start_button, false, true, 0);
 179                 bbox.pack_start(stop_button, false, true, 0);
 180                 bbox.pack_start(restart_button, false, true, 0);
 181                 bbox.pack_start(reload_button, false, true, 0);
 182
 183                 bbox = new HButtonBox();
 184                 bbox.set_layout(ButtonBoxStyle.START);
 185                 bbox.set_spacing(6);
 186                 job_vbox.pack_start(bbox, false, true, 0);
 187
 188                 cancel_button = new Button.with_mnemonic("_Cancel");
 189
 190                 cancel_button.clicked.connect(on_cancel);
 191
 192                 bbox.pack_start(cancel_button, false, true, 0);
 193
 194                 bus = Bus.get(BusType.SESSION);
 195
 196                 manager = bus.get_object (
 197                                 "org.freedesktop.systemd1",
 198                                 "/org/freedesktop/systemd1",
 199                                 "org.freedesktop.systemd1") as Manager;
 200
 201                 clear_unit();
 202                 populate_unit_model();
 203                 populate_job_model();
 204         }
 205
 206         public void populate_unit_model() throws DBus.Error {
 207                 unit_model.clear();
 208
 209                 var list = manager.list_units();
 210
 211                 foreach (var i in list) {
 212                         TreeIter iter;
 213
 214                         unit_model.append(out iter);
 215                         unit_model.set(iter,
 216                                        0, i.id,
 217                                        1, i.description,
 218                                        2, i.load_state,
 219                                        3, i.active_state,
 220                                        4, i.job_type != "" ? "→ %s".printf(i.job_type) : "",
 221                                        5, i.unit_path);
 222                 }
 223         }
 224
 225         public void populate_job_model() throws DBus.Error {
 226                 job_model.clear();
 227
 228                 var list = manager.list_jobs();
 229
 230                 foreach (var i in list) {
 231                         TreeIter iter;
 232
 233                         job_model.append(out iter);
 234                         job_model.set(iter,
 235                                       0, "%u".printf(i.id),
 236                                       1, i.name,
 237                                       2, "→ %s".printf(i.type),
 238                                       3, i.state,
 239                                       4, i.job_path);
 240                 }
 241         }
 242
 243         public Unit? get_current_unit() {
 244                 TreePath p;
 245                 unit_view.get_cursor(out p, null);
 246
 247                 if (p == null)
 248                         return null;
 249
 250                 TreeIter iter;
 251                 string path;
 252
 253                 unit_model.get_iter(out iter, p);
 254                 unit_model.get(iter, 5, out path);
 255
 256                 return bus.get_object (
 257                                 "org.freedesktop.systemd1",
 258                                 path,
 259                                 "org.freedesktop.systemd1.Unit") as Unit;
 260         }
 261
 262         public void unit_changed() {
 263                 Unit u = get_current_unit();
 264
 265                 if (u == null)
 266                         clear_unit();
 267                 else
 268                         show_unit(u);
 269         }
 270
 271         public void clear_unit() {
 272                 start_button.set_sensitive(false);
 273                 stop_button.set_sensitive(false);
 274                 reload_button.set_sensitive(false);
 275                 restart_button.set_sensitive(false);
 276
 277                 unit_id_label.set_text_or_na();
 278                 unit_description_label.set_text_or_na();
 279                 unit_load_state_label.set_text_or_na();
 280                 unit_active_state_label.set_text_or_na();
 281                 unit_load_path_label.set_text_or_na();
 282                 unit_active_enter_timestamp_label.set_text_or_na();
 283                 unit_active_exit_timestamp_label.set_text_or_na();
 284                 unit_can_reload_label.set_text_or_na();
 285                 unit_can_start_label.set_text_or_na();
 286         }
 287
 288         public void show_unit(Unit unit) {
 289                 unit_id_label.set_text_or_na(unit.id);
 290                 unit_description_label.set_text_or_na(unit.description);
 291                 unit_load_state_label.set_text_or_na(unit.load_state);
 292                 unit_active_state_label.set_text_or_na(unit.active_state);
 293                 unit_load_path_label.set_text_or_na(unit.load_path);
 294
 295                 uint64 t = unit.active_enter_timestamp;
 296                 if (t > 0) {
 297                         TimeVal tv = { (long) (t / 1000000), (long) (t % 1000000) };
 298                         unit_active_enter_timestamp_label.set_text_or_na(tv.to_iso8601());
 299                 } else
 300                         unit_active_enter_timestamp_label.set_text_or_na();
 301
 302                 t = unit.active_exit_timestamp;
 303                 if (t > 0) {
 304                         TimeVal tv = { (long) (t / 1000000), (long) (t % 1000000) };
 305                         unit_active_exit_timestamp_label.set_text_or_na(tv.to_iso8601());
 306                 } else
 307                         unit_active_exit_timestamp_label.set_text_or_na();
 308
 309                 bool b = unit.can_start;
 310                 start_button.set_sensitive(b);
 311                 stop_button.set_sensitive(b);
 312                 restart_button.set_sensitive(b);
 313                 unit_can_start_label.set_text_or_na(b ? "Yes" : "No");
 314
 315                 b = unit.can_reload;
 316                 reload_button.set_sensitive(b);
 317                 unit_can_reload_label.set_text_or_na(b ? "Yes" : "No");
 318         }
 319
 320         public Job? get_current_job() {
 321                 TreePath p;
 322                 job_view.get_cursor(out p, null);
 323
 324                 if (p == null)
 325                         return null;
 326
 327                 TreeIter iter;
 328                 string path;
 329
 330                 job_model.get_iter(out iter, p);
 331                 job_model.get(iter, 4, out path);
 332
 333                 return bus.get_object (
 334                                 "org.freedesktop.systemd1",
 335                                 path,
 336                                 "org.freedesktop.systemd1.Job") as Job;
 337         }
 338
 339         public void job_changed() {
 340                 Job j = get_current_job();
 341
 342                 if (j == null)
 343                         clear_job();
 344                 else
 345                         show_job(j);
 346         }
 347
 348         public void clear_job() {
 349                 job_id_label.set_text_or_na();
 350                 job_state_label.set_text_or_na();
 351                 job_type_label.set_text_or_na();
 352         }
 353
 354         public void show_job(Job job) {
 355                 job_id_label.set_text_or_na("%u".printf(job.id));
 356                 job_state_label.set_text_or_na(job.state);
 357                 job_type_label.set_text_or_na(job.job_type);
 358         }
 359
 360         public void on_start() {
 361                 Unit u = get_current_unit();
 362
 363                 if (u == null)
 364                         return;
 365
 366                 try {
 367                         u.start("replace");
 368                 } catch (DBus.Error e) {
 369                         message("%s", e.message);
 370                 }
 371         }
 372
 373         public void on_stop() {
 374                 Unit u = get_current_unit();
 375
 376                 if (u == null)
 377                         return;
 378
 379                 try {
 380                         u.stop("replace");
 381                 } catch (DBus.Error e) {
 382                         message("%s", e.message);
 383                 }
 384         }
 385
 386         public void on_reload() {
 387                 Unit u = get_current_unit();
 388
 389                 if (u == null)
 390                         return;
 391
 392                 try {
 393                         u.reload("replace");
 394                 } catch (DBus.Error e) {
 395                         message("%s", e.message);
 396                 }
 397         }
 398
 399         public void on_restart() {
 400                 Unit u = get_current_unit();
 401
 402                 if (u == null)
 403                         return;
 404
 405                 try {
 406                         u.restart("replace");
 407                 } catch (DBus.Error e) {
 408                         message("%s", e.message);
 409                 }
 410         }
 411
 412         public void on_cancel() {
 413                 Job j = get_current_job();
 414
 415                 if (j == null)
 416                         return;
 417
 418                 try {
 419                         j.cancel();
 420                 } catch (DBus.Error e) {
 421                         message("%s", e.message);
 422                 }
 423         }
 424 }
 425
 426 int main (string[] args) {
 427         Gtk.init(ref args);
 428
 429         try {
 430                 MainWindow window = new MainWindow();
 431                 window.show_all();
 432         } catch (DBus.Error e) {
 433                 message("%s", e.message);
 434         }
 435
 436         Gtk.main();
 437         return 0;
 438 }