Linux Snap build workflow (hovancik/stretchly)

The Linux Snap build workflow from hovancik/stretchly, explained and optimized by Latchkey.

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Source: hovancik/stretchly.github/workflows/snap-build.ymlLicense BSD-2-ClauseView source

What it does

This is the Linux Snap build workflow from the hovancik/stretchly repository, a real project running GitHub Actions. It is shown here with attribution under its BSD-2-Clause license.

Below, Latchkey shows a faster, safer version produced by its optimization engine.

The workflow

workflow (.yml)

name: Linux Snap build

on:
  push:
    branches:
      - release

permissions:
  contents: read

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
    - name: Checkout
      uses: actions/checkout@v6
    - name: Setup build environment
      uses: ./.github/actions/setup-build
    - name: Build snap package
      run: node_modules/.bin/electron-builder --linux snap --publish=never
      env:
        GH_TOKEN: ${{ secrets.github_token }}
    - name: Setup Snapcraft
      run: |
          sudo snap install snapcraft --classic
          echo "$SNAP_TOKEN" | snapcraft login --with -
          snapcraft upload --release=candidate ./dist/Stretchly_*.snap
      env:
        SNAP_TOKEN: ${{secrets.snap_token}}

The same workflow, on Latchkey

Removes redundant runs and caps runaway jobs. Added and changed lines are highlighted.

name: Linux Snap build
 
on:
  push:
    branches:
      - release
 
permissions:
  contents: read
 
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  build:
    timeout-minutes: 30
    runs-on: latchkey-small
 
    steps:
    - name: Checkout
      uses: actions/checkout@v6
    - name: Setup build environment
      uses: ./.github/actions/setup-build
    - name: Build snap package
      run: node_modules/.bin/electron-builder --linux snap --publish=never
      env:
        GH_TOKEN: ${{ secrets.github_token }}
    - name: Setup Snapcraft
      run: |
          sudo snap install snapcraft --classic
          echo "$SNAP_TOKEN" | snapcraft login --with -
          snapcraft upload --release=candidate ./dist/Stretchly_*.snap
      env:
        SNAP_TOKEN: ${{secrets.snap_token}}

What changed

Run on Latchkey managed runners with one line (runs-on), which apply the fixes below automatically and self-heal transient failures. This example uses latchkey-small; pick the runner size that fits the job.
Cancel superseded runs when a branch or PR gets a newer push.
Add a job timeout so a hung step cannot burn hours of runner time.

This workflow runs 1 job per trigger. On Latchkey the same minutes cost up to 58% less than GitHub-hosted, with zero queue time.

Actions used in this workflow

actions/checkout