Build workflow (vkbottle/vkbottle)

The Build workflow from vkbottle/vkbottle, explained and optimized by Latchkey.

What it does

This is the Build workflow from the vkbottle/vkbottle repository, a real project running GitHub Actions. It is shown here with attribution under its MIT license.

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

The workflow

name: Build

on:
  push:
    branches:
      - master

defaults:
  run:
    shell: bash

jobs:
  build:
    if: github.repository == 'vkbottle/vkbottle'
    strategy:
      matrix:
        python-version:
          - "3.10"
          - "3.14"
        os:
          - ubuntu-latest
          - windows-latest

    uses: ./.github/workflows/build.yml
    with:
      os: ${{ matrix.os }}
      python-version: ${{ matrix.python-version }}

The same workflow, on Latchkey

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

name: Build
 
on:
  push:
    branches:
      - master
 
defaults:
  run:
    shell: bash
 
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  build:
    timeout-minutes: 30
    if: github.repository == 'vkbottle/vkbottle'
    strategy:
      matrix:
        python-version:
          - "3.10"
          - "3.14"
        os:
          - ubuntu-latest
          - windows-latest
 
    uses: ./.github/workflows/build.yml
    with:
      os: ${{ matrix.os }}
      python-version: ${{ matrix.python-version }}
 

What changed

• Cancel superseded runs when a branch or PR gets a newer push.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 (4 with the matrix expanded) per trigger. On Latchkey the same minutes cost up to 58% less than GitHub-hosted, with zero queue time.