NetworkManager/clients/cli
Thomas Haller a1b25a47b0 cli: rework printing of nmcli connection for multiple active connections
The output of `nmcli connection show` contains also information about
whether the profile is currently active, for example the device and
the current (activation) state.

Even when a profile can be activated only once (without supporting
mutiple activations at the same time), there are moments when a
connection is activating and still deactivating on another device.
NetworkManager ensures in the case with single activations that
a profile cannot be in state "activated" multiple times. But that
doesn't mean, that one profile cannot have multiple active connection
which reference it. That was already handled wrongly before, because
`nmcli connection show` would only search the first matching
active-connection. That is, it would arbitrarily pick an active
connection in case there were multiple and only show activation
state about one.
Furthermore, we will soon also add the possibility, that a profile can be
active multiple times (at the same time). Especially then, we need to
extend the output format to show all the devices on which the profile is
currently active.

Rework printing the connection list to use nmc_print(), and fix various
issues.

- as discussed, a profile may have multiple active connections at each time.
  There are only two possibilities: if a profile is active multiple
  times, show a line for each activation, or otherwise, show the
  information about multiple activations combined in one line, e.g. by
  printing "DEVICE eth0,eth1". This patch, does the former.
  We will now print a line for each active connection, to show
  all the devices and activation states in multiple lines.
  Yes, this may result in the same profile being printed multiple times.
  That is a change in behavior, and inconvenient if you do something
  like

     for UUID in $(nmcli connection show | awk '{print$2}'); do ...

  However, above is anyway wrong because it assumes that there are no
  spaces in the connection name. The proper way to do this is like

     for UUID in $(nmcli -g UUID connection show); do ...

  In the latter case, whenever a user selects a subset of fields
  (--fields, --get) which don't print information about active connections,
  these multiple lines are combined. So, above still works as expected,
  never returning duplicate UUIDs.

- if a user has no permissions to see a connection, we previously
  would print "<invisible> $NAME". No longer do this but just print
  the ID was it is reported by the active-connection. If the goal
  of this was to prevent users from accidentally access the non-existing
  connection by $NAME, then this was a bad solution, because a script
  would instead try to access "<invisible> $NAME". This is now solved
  better by hiding the active connection if the user selects "-g NAME".

- the --order option now sorts according to how the fields are shown.
  For example, with --terse mode, it will evaluate type "802-11-wireless"
  but with pretty mode it will consider "wifi". This may change the
  ordering in which connections are shown. Also, for sorting the name,
  we use g_utf8_collate() because it's unicode.
2018-06-01 16:03:23 +02:00
..
agent.c all: remove consecutive empty lines 2018-04-30 16:24:52 +02:00
agent.h cli: add 'nmcli agent' command (bgo #739568) 2014-11-07 11:58:25 +01:00
common.c cli: use macro for list of argument for NmcMetaGenericInfo.get_fcn() 2018-05-14 17:53:03 +02:00
common.h cli: rework connection handling for multiple results 2018-05-14 17:53:03 +02:00
connections.c cli: rework printing of nmcli connection for multiple active connections 2018-06-01 16:03:23 +02:00
connections.h cli: rework printing of nmcli connection for multiple active connections 2018-06-01 16:03:23 +02:00
devices.c cli: use a palette to implement coloring 2018-05-10 14:36:58 +02:00
devices.h cli: use a palette to implement coloring 2018-05-10 14:36:58 +02:00
general.c cli: use macro for list of argument for NmcMetaGenericInfo.get_fcn() 2018-05-14 17:53:03 +02:00
general.h cli: output a short summary of devices when called without arguments 2016-07-19 14:29:05 +02:00
meson.build build: unifiy specifying locale directory define 2018-05-31 15:59:38 +02:00
nmcli-completion cli: make nmcli do its own command completion 2017-02-13 16:32:15 +01:00
nmcli.c cli: rework printing of nmcli connection for multiple active connections 2018-06-01 16:03:23 +02:00
nmcli.h cli: rework printing of nmcli connection for multiple active connections 2018-06-01 16:03:23 +02:00
polkit-agent.c cli: rework callbacks in NMPolkitListener to use one vtable structure 2018-04-16 16:03:14 +02:00
polkit-agent.h cli: add 'nmcli agent' command (bgo #739568) 2014-11-07 11:58:25 +01:00
settings.c all: use the elvis operator wherever possible 2018-05-10 14:36:58 +02:00
settings.h cli: move setting creation to meta data 2017-04-12 14:12:20 +02:00
utils.c cli: rework printing of nmcli connection for multiple active connections 2018-06-01 16:03:23 +02:00
utils.h cli: rework printing of nmcli connection for multiple active connections 2018-06-01 16:03:23 +02:00