How do people build Qt GUI applications snaps?

lundmar · January 29, 2018, 11:13pm

This is how I recently built my QT5 lxi-tools snap:

lxi-tools/lxi-tools.snapcraft/blob/master/snap/snapcraft.yaml

name: lxi-tools
version: '1.21'
summary: Open source LXI tools
description: >
  Lxi-tools is a collection of open source software tools that enables control
  of LXI compatible instruments such as modern oscilloscopes, power supplies,
  spectrum analyzers etc.

grade: stable
confinement: strict
icon: snap/gui/lxi-tools_256x256.png

apps:
  lxi:
    command: usr/bin/lxi
    completer: usr/share/bash-completion/completions/lxi.snap
    plugs: [home, network, avahi-observe]
    aliases: [lxi]
  lxi-gui:
    command: desktop-launch lxi-gui

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The only downside is that the QT5 widgets/theme does not look that good because it’s based on the Ubuntu 16.04 LTS core image. The lxi-gui application looks better when natively built on e.g. Ubuntu 17.10. I’m not sure if there is a way to mitigate this - maybe easier to wait for an updated core image based on Ubuntu 18.04 LTS.