Expose partitions on D-Bus

[joseivanlopez]

Problem

The Agama storage service currently exports a tree of devices on D-Bus. Such a tree only contains objects for the candidate devices for the installation. But the information about their partitions is missing. Partitions are need for serveral reasons, for example, to indicate how to find space in the selected devices.

Solution

Make the tree of devices to include objects for the partitions. The partition object implements the org.opensuse.Agama.Storage1.Block interface.

# busctl --address unix:path=/run/agama/bus tree org.opensuse.Agama.Storage1
└─/org
  └─/org/opensuse
    └─/org/opensuse/Agama
      └─/org/opensuse/Agama/Storage1
        ├─/org/opensuse/Agama/Storage1/Proposal
        └─/org/opensuse/Agama/Storage1/system
          ├─/org/opensuse/Agama/Storage1/system/68
          ├─/org/opensuse/Agama/Storage1/system/69
          ├─/org/opensuse/Agama/Storage1/system/70
          ├─/org/opensuse/Agama/Storage1/system/71
          ├─/org/opensuse/Agama/Storage1/system/77
          ├─/org/opensuse/Agama/Storage1/system/79
          ├─/org/opensuse/Agama/Storage1/system/80
          ├─/org/opensuse/Agama/Storage1/system/82
          ├─/org/opensuse/Agama/Storage1/system/83
          └─/org/opensuse/Agama/Storage1/system/85

# busctl --address unix:path=/run/agama/bus introspect org.opensuse.Agama.Storage1 /org/opensuse/Agama/Storage1/system/68 org.opensuse.Agama.Storage1.PartitionTable
NAME                                       TYPE      SIGNATURE RESULT/VALUE                             FLAGS
.Partitions                                property  ao        1 "/org/opensuse/Agama/Storage1/system/… emits-change
.Type                                      property  s         "gpt"                                    emits-change

# busctl --address unix:path=/run/agama/bus get-property org.opensuse.Agama.Storage1 /org/opensuse/Agama/Storage1/system/68 org.opensuse.Agama.Storage1.PartitionTable Partitions
ao 1 "/org/opensuse/Agama/Storage1/system/77"

# busctl --address unix:path=/run/agama/bus introspect org.opensuse.Agama.Storage1 /org/opensuse/Agama/Storage1/system/77
NAME                                TYPE      SIGNATURE RESULT/VALUE               FLAGS
org.freedesktop.DBus.Introspectable interface -         -                          -
.Introspect                         method    -         s                          -
org.freedesktop.DBus.Properties     interface -         -                          -
.Get                                method    ss        v                          -
.GetAll                             method    s         a{sv}                      -
.Set                                method    ssv       -                          -
.PropertiesChanged                  signal    sa{sv}as  -                          -
org.opensuse.Agama.Storage1.Block   interface -         -                          -
.Active                             property  b         true                       emits-change
.Name                               property  s         "/dev/vdb1"                emits-change
.RecoverableSize                    property  t         2145386496                 emits-change
.Size                               property  t         2147483648                 emits-change
.Systems                            property  as        0                          emits-change
.UdevIds                            property  as        0                          emits-change
.UdevPaths                          property  as        1 "pci-0000:08:00.0-part1" emits-change

Testing

• Added new unit tests
• Tested manually

[lslezak]

I have fixed the container to correctly use the Ruby 3.3 packages, the tests do not fail anymore.

[imobachgs]

LGTM