Fix/snap

[Guillaumebeuzeboc]

What this PR includes:

• Update snapcraft.yaml to build explicitly pulled dependency
• Disable FastDDS shared-memory for this Snap (to remove the error)
• Add GitHub action workflow to build/test the snap and upload it.
  • Build and push for amd64 and arm64
  • Build snap when Pull-request on the foxy branch
  • Uploading to the store only on push on the foxy branch
  • Upload the snap to the candidate channel on tagged commit, edge otherwise.

In order to automatically upload the snap, the secret STORE_LOGIN must be defined. On snapcraft.io the snap is owned by eProsima, hence, the owner of this account should follow this procedure:

• Run snapcraft export-login --snaps=micro-ros-agent --acls package_access,package_push,package_update,package_release exported.txt
• Add the secret to the project by:
  • Going to the "Settings" tab
  • Choosing "Secrets" from the menu on the left, then "Actions"
  • Clicking "New repository secret".
  • Setting the name to STORE_LOGIN, and paste the contents of exported.txt as the value.

Moving a released snap from candidate to stable can be done with the snapstore by the eProsima account.

Note that releasing the snap from candidate to stable should be done manually on the store after proper testing.

The final snap has been tested with a serial micro-ros device

Closes https://github.com/micro-ROS/micro-ROS-Agent/issues/63

[Acuadros95]

Well, should have tested the arm64 version. It looks like we can't build for arm64 here, check the amd64 name on the arm job: micro-ros-agent_0+git.7852fa4_amd64.snap

I am trying to fix it here: https://github.com/micro-ROS/micro-ROS-Agent/pull/151. But it looks like it cannot be archieved using snapcore/action-build

[Guillaumebeuzeboc]

Indeed I didn't see that. From what I could read we are supposed to use https://github.com/diddlesnaps/snapcraft-multiarch-action But there is a bug right now https://github.com/diddlesnaps/snapcraft-multiarch-action/issues/6

I would suggest disabling the arm64 build for now.

Let me know if you want me to open a PR