SystemUpdate: Use systemd timer for initial and daily update check

[ryonakano]

Fixes #158
Closes #177

TODO

• The timer is not enabled (started automatically on login) unless you manually enable it for some reason 🤷
  • Bumping required debhelper to 12 resolves: Require debhelper 12 #201

user@elementary-8:~$ systemctl --user status io.elementary.settings-daemon.system-update.timer 
○ io.elementary.settings-daemon.system-update.timer - Check for system updates daily
     Loaded: loaded (/usr/lib/systemd/user/io.elementary.settings-daemon.system-update.timer; disabled; preset: enabled)
     Active: inactive (dead)
    Trigger: n/a
   Triggers: ● io.elementary.settings-daemon.system-update.service
user@elementary-8:~$ systemctl enable --user io.elementary.settings-daemon.system-update.timer 
Created symlink /home/user/.config/systemd/user/timers.target.wants/io.elementary.settings-daemon.system-update.timer → /usr/lib/systemd/user/io.elementary.settings-daemon.system-update.timer.
user@elementary-8:~$

[Marukesu]

The timer is not enabled (started automatically on login) unless you manually enable it for some reason 🤷

This should be a issue with manual building only. The deb package is supposed to enable it automatically during the installation.

[ryonakano]

The timer is not enabled (started automatically on login) unless you manually enable it for some reason 🤷

This should be a issue with manual building only. The deb package is supposed to enable it automatically during the installation.

Actually I got this result with the settings-daemon build with debuild -us -uc and installed with apt. This would be because the system-update timer and service is defined as user, not system one. Defining the timer and service as system results the timer is enabled by default as expected, but the timer fails to launch the service with the following error:

Failed to set bus address: $DBUS_SESSION_BUS_ADDRESS and $XDG_RUNTIME_DIR not defined (consider using --machine=<user>@.host --user to connect to bus of other user)

[lenemter]

Deb package can't enable user services. We had the same issue during OS 8 development when trying to start the dock via the service

[ryonakano]

We had the same issue during OS 8 development when trying to start the dock via the service

How did you resolve this issue?

[lenemter]

We didn't solve it. We had to make gala launch the dock because of libmutter limitations

[leonardo-lemos]

@ryonakano Can you publish your package branch, please? I'd like to take a look.

[leonardo-lemos]

@ryonakano Changing the compat version from 10 to 12, as suggested here, solved the problem.

○ io.elementary.settings-daemon.system-update.timer - Check for system updates daily
     Loaded: loaded (/usr/lib/systemd/user/io.elementary.settings-daemon.system-update.timer; enabled; preset: enabled)
     Active: inactive (dead)
    Trigger: n/a
   Triggers: ● io.elementary.settings-daemon.system-update.service

[ryonakano]

@leonardo-lemos Thank you very much, that works for me too! (sorry for Japanese texts)

user@elementary-8-daily:~/work$ sudo apt install ./io.elementary.settings-daemon_8.3.1_amd64.deb 
パッケージリストを読み込んでいます... 完了
依存関係ツリーを作成しています... 完了        
状態情報を読み取っています... 完了        
注意、'./io.elementary.settings-daemon_8.3.1_amd64.deb' の代わりに 'io.elementary.settings-daemon' を選択します
以下のパッケージはアップグレードされます:
  io.elementary.settings-daemon
アップグレード: 1 個、新規インストール: 0 個、削除: 0 個、保留: 79 個。
141 kB 中 0 B のアーカイブを取得する必要があります。
この操作後に追加で 66.6 kB のディスク容量が消費されます。
取得:1 /home/user/work/io.elementary.settings-daemon_8.3.1_amd64.deb io.elementary.settings-daemon amd64 8.3.1 [141 kB]
(データベースを読み込んでいます ... 現在 175923 個のファイルとディレクトリがインストールされています。)
.../io.elementary.settings-daemon_8.3.1_amd64.deb を展開する準備をしています ...
io.elementary.settings-daemon (8.3.1) で (8.3.0+r426+pkg20~daily~ubuntu8.1 に) 上書き展開しています ...
io.elementary.settings-daemon (8.3.1) を設定しています ...
Created symlink /etc/systemd/user/timers.target.wants/io.elementary.settings-daemon.system-update.timer 
→ /usr/lib/systemd/user/io.elementary.settings-daemon.system-update.timer.  ★★★Our timer is enabled
io.elementary.settings-daemon.check-for-firmware-updates.service is a disabled or a static unit not runn
ing, not starting it.
desktop-file-utils (0.27-2build1) のトリガを処理しています ...
gnome-menus (3.36.0-1.1ubuntu3) のトリガを処理しています ...
libglib2.0-0t64:amd64 (2.80.0-6ubuntu3.4) のトリガを処理しています ...
N: ファイル '/home/user/work/io.elementary.settings-daemon_8.3.1_amd64.deb' がユーザ '_apt' からアクセスできないため、ダウンロードは root でサンドボックスを通さずに行われます。 - pkgAcquire::Run (13: 許可がありません)
user@elementary-8-daily:~/work$ 

[ryonakano]

Marking as ready for review as building and installing a deb package with this branch and #201 enables the timer and updates are checked automatically after 1 minute of login as expected.