This patch adds two helpers so that it is easy to create a PlugRef from
Plug and a SlotRef from Slot.

Signed-off-by: Zygmunt Krynicki <zygmunt.krynicki@canonical.com>

This patch adds a structure representing a single connection.

Signed-off-by: Zygmunt Krynicki <zygmunt.krynicki@canonical.com>

…nect

Disconnect supports abbreviated forms where one can disconnect,
for example, all the connections affecting a given snap.

Since interface manager needs to setup security of all the affected
snaps and to forget the persistent state of all the affected connections
this information is now provided directly by the Disconnect
operation.

Signed-off-by: Zygmunt Krynicki <zygmunt.krynicki@canonical.com>

This patch adds support for abbreviated disconnect operations that match
the suggestions printed by "$ snap disconnect --help". This also fixes a
bug where snapd would crash if any of those abbreviated forms were to be
used.

Fixes: https://bugs.launchpad.net/snappy/+bug/1571497
Signed-off-by: Zygmunt Krynicki <zygmunt.krynicki@canonical.com>

…isconnect-short-form.

…ort-form

This patch adds a new pair of methods, ResolveDisconnectAll and
DisconnectAll that respectively look up a list of connections to sever
and disconect a list of connections.

DisconnectAll returns a list of names of snaps that were affected by the
operation.

Signed-off-by: Zygmunt Krynicki <zygmunt.krynicki@canonical.com>

…ort-form

Signed-off-by: Zygmunt Krynicki <zygmunt.krynicki@canonical.com>

Signed-off-by: Zygmunt Krynicki <zygmunt.krynicki@canonical.com>

…ort-form

Signed-off-by: Zygmunt Krynicki <zygmunt.krynicki@canonical.com>

Signed-off-by: Zygmunt Krynicki <zygmunt.krynicki@canonical.com>

Signed-off-by: Zygmunt Krynicki <zygmunt.krynicki@canonical.com>

Signed-off-by: Zygmunt Krynicki <zygmunt.krynicki@canonical.com>

Signed-off-by: Zygmunt Krynicki <zygmunt.krynicki@canonical.com>

Signed-off-by: Zygmunt Krynicki <zygmunt.krynicki@canonical.com>

Signed-off-by: Zygmunt Krynicki <zygmunt.krynicki@canonical.com>

This patch changes the interface manager to use the new APIs offered by
interfaces.Repository for disconnecting. In particular we no longer
obtain snap.Info of the affected snaps from the repository (which can
contain stale data). Instead we use the snapstate to fetch the current
info).

In addition of the fully-spelled-out "disconnect snap:plug snap:slot" we
now correctly support "disconnect snap:plug" or "disconnect snap:slot".
In those two new forms the snap name can be empty (it then defaults to
the core snap). This is thanks to the use of the new DisconnectAll
method.

Signed-off-by: Zygmunt Krynicki <zygmunt.krynicki@canonical.com>

Signed-off-by: Zygmunt Krynicki <zygmunt.krynicki@canonical.com>

Signed-off-by: Zygmunt Krynicki <zygmunt.krynicki@canonical.com>

Signed-off-by: Zygmunt Krynicki <zygmunt.krynicki@canonical.com>

Signed-off-by: Zygmunt Krynicki <zygmunt.krynicki@canonical.com>