Now I need Linux to test on.

April 22, 2023

Eventually I want to run Tipsy-Robot with the png generator on little micro-computer here in the house. Getting from developing on my Mac to that little nugget means cross checking everything on Linux.

Two examples on how to verify things work: a VM and a GitHub Action

Semi-Virtual VirtualBox

I use VirtualBox as my VM. Conveniences like being able to copy paste between windows makes working on a code base for both environments super easy.

Misc brief notes on setting up VirtualBox

Go get Virtual Box: https://www.virtualbox.org/wiki/Downloads
Install
Go get ISO, ubuntu, LTS stands for Long Term Support
New
Setup Permission for VirtualBox “Input Monitoring”

Misc Other

Set the scree size
Add terminal to favorites
https://www.virtualbox.org/manual/ch04.html. // install guest device got to Devices> to turn them on
https://www.howtogeek.com/307701/how-to-customize-and-colorize-your-bash-prompt/
https://wiki.archlinux.org/title/Bash/Prompt_customization

Add Swift The Long Way

Official Instructions

sudo apt update
sudo apt upgrade
sudo apt install clang libicu-dev build-essential pkg-config

mkdir ~/swift
cd ~/swift
# go to https://www.swift.org/download/#releases for current links
wget https://download.swift.org/swift-5.8-release/ubuntu2004/swift-5.8-RELEASE/swift-5.8-RELEASE-ubuntu20.04.tar.gz
tar xzf swift-5.8-RELEASE-ubuntu20.04.tar.gz #add v (xzvf) to see all files
mv swift-5.8-RELEASE-ubuntu22.04 5.8
# swift.org recommended choice: add a simlink to `swift` command to `/usr/bin/` 
# instead of adding version folder to $PATH. 
sudo ln -s ~/swift/5.8/usr/bin/swift /usr/bin/swift 
swift --version

Add what we need:

sudo apt install git 
sudo apt install gh  #optional
sudo apt install libpng-dev

mkdir ~/Documents/GitHub
cd ~/Documents/GitHub

gh auth login #https://cli.github.com/manual/gh_auth_login
gh repo clone carlynorama/SwiftLIBPNG

#or
git@github.com:carlynorama/SwiftLIBPNG.git

cd SwiftLIBPNG
swift build

If installing VScode will also need sourcekit-lsp. Discussion: https://forums.swift.org/t/vscode-extension/29722

Super Virtual Linux (Github Action)

Use action like one checking APITizer

name: Build Linux

on:
  push:
    branches:
      - '*'
  pull_request:
    branches:
      - main
      
jobs:
  build:
    name: Build Linux
    runs-on: ubuntu-latest
    container:
      image: swift:latest
    steps:
      - name: Checkout
        uses: actions/checkout@v3
      - name: Install sudo package
        run: apt update && apt install sudo
      - name: Install libpng
        run: |
          sudo apt-get install libpng-dev -y          
      - name: Build and Test
        run: |
           swift build
           swift test

TODO: Cache the image with libpng?