Travis CI is a hosted continuous integration service used to build and test software projects hosted on

GitHub GitHub, Inc. () is an Internet hosting service for software development and version control using Git. It provides the distributed version control of Git plus access control, bug tracking, software feature requests, task management, cont ...

, Bitbucket,

GitLab GitLab Inc. is an open-core company that operates GitLab, a DevOps software package which can develop, secure, and operate software. The open source software project was created by Ukrainian developer Dmitriy Zaporozhets and Dutch developer ...

Perforce Perforce, legally Perforce Software, Inc., is an American developer of software used for developing and running applications, including version control software, web-based repository management, developer collaboration, application lifecycle man ...

, Apache Subversion and

Assembla Assembla is a web-based version control and source code management software as a service provider for enterprises. It was founded in 2005 and acquired by San Antonio Venture Equity firm Scaleworks in 2016. It offers Git, Perforce Helix Core and ...

. Travis CI was the first CI service that provided services to open-source projects for free and continues to do so. TravisPro provides custom deployments of a proprietary version on the customer's own hardware. The source is technically

free software Free software or libre software is computer software distributed under terms that allow users to run the software for any purpose as well as to study, change, and distribute it and any adapted versions. Free software is a matter of liberty, n ...

and available piecemeal on GitHub under permissive licenses. The company notes, however, that the large number of tasks that a user needs to monitor and perform can make it difficult for some users to successfully integrate the Enterprise version with their own infrastructure.

Configuration

Travis CI is configured by adding a file named .travis.yml, which is a

YAML YAML ( and ) (''see '') is a human-readable data-serialization language. It is commonly used for configuration files and in applications where data is being stored or transmitted. YAML targets many of the same communications applications as Ext ...

format text file, to the root directory of the repository. This file specifies the programming language used, the desired building and testing environment (including dependencies which must be installed before the software can be built and tested), and various other parameters. Travis CI at GitHub Universe

Architectures

The default CPU architecture used in Travis CI builds is amd64. It is used when no arch key is present. You can identify for which CPU architecture a build job is run via the GUI: * In the build job list, there’s a specific label and architecture name based on arch tag value. * In the build job view, the same specific label is displayed near the operating system identifier. It is possible to use Docker in multiple CPU architecture-based builds within an LXD container. You may need a specific CPU architecture-compliant Docker image as a base or ensure relevant libraries required by your build are added to your Dockerfile.

Operation

When Travis CI has been activated for a given repository, GitHub will notify it whenever new commits are pushed to that repository or a pull request is submitted. It can also be configured to only run for specific branches or branches whose names match a particular pattern. Travis CI will then check out the relevant

branch A branch, sometimes called a ramus in botany, is a woody structural member connected to the central trunk of a tree (or sometimes a shrub). Large branches are known as boughs and small branches are known as twigs. The term '' twig'' usuall ...

and run the commands specified in ''.travis.yml'', which usually builds the software and run any automated tests. When that process has been completed, Travis notifies the developer(s) in the way it has been configured to do so—for example, by sending an email containing the test results (showing success or failure), or by posting a message on an IRC channel. In the case of pull requests, the pull request will be annotated with the outcome and a link to the build log using a GitHub integration. Travis CI can be configured to run the tests on a range of different machines with different software installed (such as older versions of a programming language implementation to test for compatibility). Travis CI building on Perforce

The Travis CI blog is mainly run by Travis's Software Engineer, Montana Mendy.

Company

The company is headquartered in Berlin, Germany, and was founded in 2011. In 2012 the project experienced significant growth and launched a crowd funding campaign to fund further development which was sponsored by dozens of technology companies. In January 2019, it was announced that the company had been acquired by Idera, Inc. In March 2019, Travis CI infrastructure suffered a massive outage from March 27 to March 29. In March 2020, Travis CI introduced 'The Cookbook' written by Montana Mendy with tutorials for common use cases. Landing Page for Travis CI, December 2022

Landing Page for Travis CI, December 2022

In November 2020, Travis CI announced the shutdown of travis-ci.org by December 31, 2020, with all existing and new accounts migrating to travis-ci.com. Despite the official pledge to keep "open source accounts completely free under travis-ci.com", open-source projects report that their build jobs stalled. According to users posting on the official forum, accounts are limited to a one-time gift of 10,000 credits (as opposed to a recurring monthly allowance).

References

External links