The data are added to output_data at first, and then they are printed all at
once using print_data(), that takes care of proper alignment and display.
The static 'width' values defined in NmcOutputField columns are not used now,
but dynamically computed maximal widths override them.
A few examples:
nmcli --ask connection add
nmcli connection add type ethernet
nmcli -p connection add type ethernet con-name "my ethernet connection 1"
nmcli connection add type ethernet ip4 192.168.100.5/24
nmcli connection add type ethernet ip4 192.168.100.100/24 gw4 192.168.100.1 ip4 1.2.3.4 ip6 abbe::cafe
nmcli connection add type ethernet ifname eth0
nmcli connection add type ethernet autoconnect no ifname eth0
nmcli connection add type wifi con-name Rakosnicek ssid Brcalnik
nmcli --ask connection add type wifi con-name My_WiFi
nmcli c a type infiniband con-name Infi1 transport-mode connected
nmcli c a type bluetooth addr 12:54:00:fd:db:26
nmcli c a type bluetooth addr 12:54:00:fd:db:26 bt-type dun-cdma
nmcli c a type gsm apn internet
nmcli c a type cdma
nmcli c a type bond
nmcli c a type bond ifname mybond0 mode active-backup
nmcli c a ifname maxipes-fik type vlan dev eth0 id 55
nmcli c a con-name VLAN1 type vlan dev eth0 id 44 ingress "2:4,3:55" egress "1:3" flags 6
nmcli c a type bridge ifname br0 stp on ip4 10.0.0.25
nmcli c a ifname eth0 type bridge-slave master 30fc816a-e7dd-4ae7-a86e-ab0c9cee51c2 hairpin no path-cost 333 priority 20
nmcli c a type bridge-slave master br2
We need to use a workaround for VPN connection state. There is a bug somewhere
causing that vpn-state-changed signal is not issued on active VPN connection.
Debugging showed that D-Bus PropertiesChanged and VpnStateChanged signals are
not processed properly. That's why libnm-glib's VPN connection object is not
updated. The issue may lie in libnm-glib or even in dbus-glib.
I wasn't able to get VpnStateChanged signal via dbus-glib
(dbus_g_proxy_add_signal() and dbus_g_proxy_connect_signal()), however received
the signal successfully using GDBus.
Until the issue is analyzed and fixed, we need to ask for VPN state of active
VPN connection every second in order to show progress and exit correctly.
