CMake / CI / TDD on discussion

Sylvain Fargier, CERN

13/05/2024

Introduction

Introduction

Introduction

• This training is a second step after the "Let's talk about workflow !" presentation.
• In a few words :
  • The goal is to share and exchange on TDD
  • Focusing on constrained environments
  • Using CMake, Docker and GitLab-CI
  • To make the previous presentation a bit more concrete and have some material, a limited-time project (~ a week of development) has been created
• Everything is there, but we'll get into this !

Project Presentation

Context, goals and approach

Project Presentation

• Let's review the main README file together !
• We should now be ready to get through :

  1. Docker and Development Environment

  2. CMake and Rules

  3. Tests and Validation

  4. Code Quality

  5. Continuous Integration

• That's quite a lot of information

• Let's organize this as an exchange and don't hesitate to interrupt the speaker ! (it'll be interresting for both sides !)

Docker and dev-envs

Turning CI/CD builders into developer-friendly environments

Docker and dev-envs

• Let's step into that one together !
  • And don't be shy, don't hesitate to ask the speaker to jump into his console and show you how it works !

• You should now better understand :
  • how to build a container and use it as a development toolbox
  • what are the benefits from using such environments

CMake and rules

Wrapping up a toolchain getting prepared for baremetal developments

CMake and Rules

• Let's step into another one together !
  • Remember that this is not an in-depth CMake training, still questions are welcome !
• You should now better understand :
  • how to get started on a project with CMake
  • how to wrap a toolchain for CMake
  • how to re-use rules from one project to another
• We can now make a short detour through IDE integration !

Tests and Validation

Stubbing and testing patterns on baremetal platform

Tests and Validation

• Let's jump into another one together !
  • Yet another topic, if you think the presenter is going wrong way, don't hesitate to intervene !

• You should now better understand :
  • how to prepare an application for TDD
  • differences between different tests categories
  • stub and mocking techniques

Code Quality

Step-back and see where we're getting to

Code Quality

• This one is a short one, let's have a look !
  • This one smells like coffee, let's have a short break ?

• You should now better understand :
  • where we're getting to with all those rules and tools
  • how fast a project can grow once you have proper tools

Continuous Integration

Where all this starts to make sense

Continuous Integration

• Very last topic, I promise, let's dive into it !
  • Last opportunity to interrupt the speaker, he may not have all the answers but at least we can discuss.

• You should now better understand :
  • how to create GitLab-CI jobs and the basics of its syntax
  • how to extend and scale this using includes and configuration tools

Questions ?