GitHub Action for setting up Snapcraft

This action…

• Installs Snapcraft on Ubuntu 18.04+/macOS
• Optionally logs you in to the Snap Store
• Allows you to run Snapcraft commands in your GitHub Actions workflows

Note that the more recently created snapcore/action-build and snapcore/action-publish effectively copy the use_lxd strategy (below). Building using this actions still takes ~3:30 min less time than snapcore/action-build.

To use this action, add the following step to your workflow:

- name: Install Snapcraft
  uses: samuelmeuli/action-snapcraft@v1

A full example:

name: My workflow

on: push

jobs:
  my-job:
    runs-on: ubuntu-latest
    env:
      SNAPCRAFT_STORE_CREDENTIALS: ${{ secrets.SNAPCRAFT_TOKEN }}
    steps:
      - name: Check out Git repository
        uses: actions/checkout@v3

      - name: Install Snapcraft
        uses: samuelmeuli/action-snapcraft@v1

      # You can now run Snapcraft shell commands
      - name: Use Snapcraft
        run: snapcraft --help

This action can also log you in to the Snap Store. For this to work, you need an Ubuntu One account.

You will also need a Snap Store login token. To obtain one, run the following command on your machine:

snapcraft export-login --snaps SNAP_NAME --channels edge -

NOTE: You will need to manually push a package to the Snap Store to get a valid SNAP_NAME first.

Copy that token and add it as a secret to GitHub Actions. You can do this in your GitHub repository under Settings → Secrets. You can name it SNAPCRAFT_TOKEN for convenience.

Set SNAPCRAFT_STORE_CREDENTIALS environment variable either in:

• root yml file: to be available for all jobs
• inside a job: to be available inside a specific job (recommended), or
• inside a step: to be available only in a specific step

env:
  SNAPCRAFT_STORE_CREDENTIALS: ${{ secrets.SNAPCRAFT_TOKEN }}

Finally, add the following option to your workflow step:

- name: Install Snapcraft
  uses: samuelmeuli/action-snapcraft@v1
  with:
    skip_install: true # optional, if already installed in an earlier step

Using runs-on: ubuntu-20.04 or later, LXD is availabe by default. If using runs-on: ubuntu-18.04, LXD can be installed as shown below. This is an alternative to using multipass (GitHub VMs give the error launch failed: CPU does not support KVM extensions. when trying to use multipass).

- name: Install Snapcraft with LXD
  uses: samuelmeuli/action-snapcraft@v1
  with:
    use_lxd: ${{ matrix.os == "ubuntu-18.04" }}
- name: Build snap
  run: sg lxd -c 'snapcraft --use-lxd'

Suggestions and contributions are always welcome! Please discuss larger changes via issue before submitting a pull request.

Currently maintained by @casperdcl.

• Lint Action – GitHub Action for detecting and fixing linting errors
• Electron Builder Action – GitHub Action for building and releasing Electron apps
• Maven Publish Action – GitHub Action for automatically publishing Maven packages
• snapcore/action-build – GitHub Action for installing LXD and Snapcraft, and building snaps
• snapcore/action-publish – GitHub Action for logging in and pushing to the Snap Store