Pop

Change software versions for Continuous Integration.

Warning

This is a demonstration project only. It is not ready to be used in production.

Alternative versions

You are currently looking at the PHP version of this code.

You can also see a Python implementation of this code here.

Reading

To read the code top-down from the highest entry point, please start in bin/pop.php.

Background

CI providers (Travis, Circle, etc.) provide tools for changing software versions.

Here's an example from SemaphoreCI which sets the php version:

sem-version php 8.2
php -v

Pop aims to provide similar tools, that you can install and use anywhere:

./ci version php 8.2
./ci php -v

Why?

I wanted an unusual project to demonstrate that I know how to:

1. Demonstrate a solution to unusual problems.
2. Use Inheritance, Polymorphism and Interface Segregation.
3. Build something usable in about 4 hours time.
4. Write PSR 4 and PSR 12 compatible code.
5. Improve code using static analysis tools like Psalm.
6. (Hopefully) write a decent README :).

It doesn't demonstrate that I know how to:

1. Write unit tests.
2. Publish stuff on Packagist for all to use.

That's because of the current size and I have other (older) examples for those.

Installation

Prerequisites

You will need these installed:

• podman (and set up to use 'Rootless' containers).
• curl
• gpg

How

To install, first clone the repository and then run the build script:

git clone https://github.com/WillSkates/pop.git
cd pop
bash ./build

Usage

./ci version php 8.2
./ci php -v

./ci version php 8.3
./ci php -v

License

This project is published under the MIT license.

Full details can be found in the "LICENSE" file.