Learn TRAVIS-CI with Real Code Examples

Python project with unit tests across versions 3.7–3.11

Node.js project deploying to npm after successful build

Ruby on Rails app running tests on PostgreSQL and MySQL

Multi-language library with build matrix

Deploy static site to AWS S3 after passing CI

Check build logs for errors

Validate `.travis.yml` syntax

Ensure dependencies are correctly installed

Check GitHub webhook triggers

Review environment variables for secure access

Validate `.travis.yml` with Travis CLI

Run builds locally using `travis lint`

Check logs for failed tests

Use caching to speed repeated builds

Test matrix combinations individually if failures occur

Deploy via built-in Travis stages

Use custom scripts in `.travis.yml`

Automatic deployment on tagged commits

Conditional deployment per branch or environment

Deploy to multiple targets sequentially or in parallel

Travis CI Web Dashboard

Travis CLI (`travis` gem) for command-line management

GitHub repository integration

Notification integrations (Slack, email, webhooks)

Add-ons for deployment (Heroku, AWS, Docker Hub)

GitHub for repository events

AWS, Azure, GCP for deployment

Package registries: npm, PyPI, RubyGems

Slack, email, and chat notifications

Third-party testing and code quality tools

Use caching to speed builds

Define clear stages for deployment

Use build matrices for thorough testing

Keep `.travis.yml` organized and commented

Integrate notifications to track build health

Debugging failing builds in matrix configurations

Managing encrypted secrets across multiple environments

Ensuring consistent environment dependencies

Optimizing build time with caching and parallelization

Maintaining CI/CD workflow for multiple branches