How does the version matrix work?

Each version you list under your chosen language creates a separate build job, for example listing Node.js versions 18 and 20 runs your install/script steps once per version, in parallel, so you can confirm compatibility across versions in a single pipeline run.

Why is the version key different depending on the language?

Travis CI's matrix key varies by language: Node.js uses `node_js:`, Python uses `python:`, Ruby uses `rvm:`, and Java uses `jdk:`. This tool picks the correct key automatically based on the language you choose so you don't have to memorize Travis's per-language conventions.

What does the deploy toggle actually configure?

Enabling it adds a `deploy:` block with the provider you specify (e.g. `pages`, `script`, `s3`) and `on: branch: main`, so deploys only trigger from your main branch. You'll still need to add provider-specific credentials/config keys afterward, since those vary significantly by provider.

Is Travis CI still actively used?

Travis CI remains in use, particularly on many long-running open-source projects, though GitHub Actions has become the more common default for new GitHub-hosted projects. This tool is aimed at maintaining or migrating existing Travis-based projects.

Travis CI Generator - Build a .travis.yml

Overview

Introduction

Travis CI's .travis.yml uses a different top-level key for the version matrix depending on the language (node_js, python, rvm, jdk), a detail that's easy to forget if you're not working with Travis every day.

This tool generates a complete .travis.yml from a form, automatically picking the right matrix key for your chosen language and assembling install, script, stages, and deploy sections.

What Is Travis CI Generator?

A form-driven generator for Travis CI configuration. You choose a language, list one or more versions to build a matrix, set install and script command lists, optionally name build stages, and optionally enable a deploy block.

The output is a complete .travis.yml with the language-appropriate version matrix key, install/script command lists, and optional stages/deploy sections.

How Travis CI Generator Works

Selecting a language maps to Travis's actual matrix key internally (e.g. `node_js` → `node_js:`, `python` → `python:`, `ruby` → `rvm:`, `java` → `jdk:`), and each version you add becomes one quoted entry in that list.

Install and script commands each become their own YAML list under `install:` and `script:` respectively, and enabling deploy appends a `deploy:` block scoped to the main branch with your chosen provider.

When To Use Travis CI Generator

Use it when setting up Travis CI for a new or existing project and want a matrix build across multiple language versions without memorizing Travis's per-language YAML keys.

It's also useful for adding a deploy block to an existing Travis pipeline that currently only runs tests.

Often used alongside GitHub Actions Workflow Generator, CircleCI Config Generator and GitLab CI Generator.

Features

Advantages

Automatically selects the correct version-matrix YAML key for the chosen language, avoiding a common source of "my matrix isn't being picked up" confusion.
Produces separate install and script sections in the order Travis actually executes them (install before script).
Generates a deploy block scoped to the main branch by default, avoiding accidental deploys from feature branches.

Limitations

The deploy block only sets the provider and branch condition; provider-specific keys (API keys, bucket names, target regions) need to be added manually since they vary widely.
Doesn't cover Travis's conditional build config (`if:` conditions), build stage dependency graphs, or notifications configuration.

Examples

A Node.js matrix build across two versions

Input

language: node_js; versions: 18, 20; install: npm install; script: npm test

Output

language: node_js
node_js:
  - "18"
  - "20"

install:
  - npm install

script:
  - npm test

Both Node.js versions are listed under the language-specific node_js matrix key, and install/script commands are separated into their own sections.

Best Practices & Notes

Best Practices

Test against the same language versions your production environment actually uses, not just the newest available version.
Keep install commands limited to dependency installation and let script commands handle the actual test/build work, matching Travis's own phase separation.
Scope deploy blocks to a specific branch (main, by default here) so a push to a feature branch never accidentally triggers a deploy.

Developer Notes

The language-to-matrix-key mapping (node_js, python, rvm for ruby, jdk for java) is hard-coded since Travis's own key names don't follow a predictable transformation from the language identifier; for any language outside that map, the generator falls back to using the language name itself as the matrix key, which matches Travis's behavior for lesser-used languages. All version values are quoted (e.g. `"20"`) to avoid YAML parsing a version like `3.10` as a float and dropping the trailing zero.

Travis CI Generator Use Cases

Scaffolding a new .travis.yml for a project adopting Travis CI
Adding a multi-version compatibility matrix to an existing single-version Travis build
Adding a basic branch-scoped deploy block to a tests-only Travis pipeline

Common Mistakes

Using the wrong matrix key for the language (e.g. `versions:` instead of `node_js:`), which Travis silently ignores rather than erroring on.
Leaving version numbers unquoted in YAML, causing something like Python 3.10 to be parsed as the number 3.1.

Tips

Fill in the deploy block's provider-specific keys (documented per-provider in Travis's deployment docs) right after generating, the generated block alone isn't enough to actually deploy anywhere.

Travis CI Generator