live-cloud-init : lp:~mwhudson/livecd-rootfs/+git/livecd-rootfs : Git : Code : livecd-rootfs

With the removal of snap-tool failures are seen in image builds that do
not have the 'core' snap included by the seed. This is the case for the
minimized subproject of the ubuntu-cpc project where lxd/core is removed.
In that subproject, any binary hook which adds a snap that is based
on 'core' will not add 'core' and fail 'snap debug validate-seed'.
snap-tool included the following logic in the 'snap-tool info' when
determining snap bases:

    # Have "base" initialized to something meaningful.
    if self.is_core_snap():
        snap_data["snap"]["base"] = ""
    elif snap_data["snap"].get("base") is None:
        snap_data["snap"]["base"] = "core"

The snap store does not return a base if the base is core which makes
this necessary. This patch looks for the base in 'snap info' output
and if none is found (and the snap is not snapd or core) it assumes the
base is 'core' and installs it. This restores the behavior lost in the
migration from snap-tool to snap cli.

bc3e962... by Iain Lane on 2020-02-24

Finalise changelog

ede0be8... by Iain Lane on 2020-02-24

Pass --verbose to `snap info` so that it includes the base.

b843beb... by Steve Langasek on 2020-02-21

releasing package livecd-rootfs version 2.645

489f009... by Robert C Jennings on 2020-02-21

Use snap cli rather than custom snap-tool

snap-tool was added to support a deprecate cohort-key feature of the snap store.
Recent changes in snap assertions have added additional fields which snap-tool
is not retrieving. This resulted in snap install failures on first boot.

This patch removes snap-tool and returns to using the snap cli. This ensures
snap downloads will function without odd incompatibilities.

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