Knapsack Pro

Travis CI vs Scrutinizer CI comparison of Continuous Integration servers
What are the differences between Travis CI and Scrutinizer CI?

Travis CI

https://travis-ci.org

Scrutinizer CI

https://scrutinizer-ci.com
Unique feature

Build Matrix, ease of use, GitHub integration

Ongoing statical analysis

Type of product

SaaS, Self-hosted / On Premise

SaaS

Offers a free plan

Yes

Free for open source projects

Yes

Free for open source projects
Predictable pricing

Yes

Clearly defined monthly plans, depending on concurrent jobs needed.

Yes

Three different paid monthly tiers
Support / SLA

Yes

Available via email, or dedicated online interface for paid plans.

N/A

Not specifically mentioned, probably not.
Paralellism
Every CI servers tends to address this differently (parallel, distributed, build matrix). Some of it is just marketing, and some is just nuance. For this table, parallel means that tasks can be run concurrently on the same machine, distributed means that tasks can be scaled horizontally, on multiple machines
How to split tests in parallel in the optimal way with Knapsack Pro

Yes

TravisCI makes it very easy to split your build into different stages which are then run in parallel (ie: run integration tests separate from the unit tests). TravisCI calls this a build matrix: https://docs.travis-ci.com/user/build-matrix/. You can also very easily split tests accross several VMs using the knapsack_pro gem.

Yes

Automated parallalelization for code analysis, as well as support for running tasks in parallel
Distributed builds
distributed means that tasks can be scaled horizontally, on multiple machines
How to split tests in parallel in the optimal way with Knapsack Pro

N/A

N/A

Unclear from the documentation (probably not)
Containers support / Build environment

Yes

TravisCI runs each build in a isolated virtual machine. Pre-build packages include a few which support specific languages (Ruby and JavaScript included) or other software (Git, various databases), but vanilla packages such as Ubuntu Trusty are also available.

Yes

Tests run in isolated containers. Docker support available.
Analytics / Status overview
Analytics and overview referrs to the ability to, at a glance, see what's breaking (be it a certain task, or the build for a specific project)

Yes

Available by default in Travis (this is what most of the web UI consists of)

Yes

Besides classic CI overview, they also provide static code analysis insights, which is a differentiator for Scrutinizer
Management support
How easy is it to manage users / projects / assign roles and permissions and so on

N/A

Yes

Additional seats available for every plan at $14.90 per seat, per month.
Self-hosted option

Yes

No

Hosted plans / SaaS

Yes

Yes

Build pipelines
A continuous delivery pipeline is a description of the process that the software goes through from a new code commit, through testing and other statical analysis steps all the way to the end-users of the product.

No

Specifically built around GitHub pull requests. Pipelines can be defined, but parts of the process need to be implemented separatelly in GitHub.

Yes

Pipelines as code (YML files)
Reports
Reports are about the abilty to see specific reports (like code coverage or custom ones), but not necesarily tied in into a larger dashboard.

Yes (partial)

No persistent storage eliminates the possibility of code coverage reports on TravisCI alone. There is support for integrated 3rd parties such as Coveralls for reporting code coverage.

Yes

Ecosystem
Besides the official documentation and software, is there a large community using this product? Are there any community-driven tools / plugins that you can use?

No plugin support in TravisCI, plugins for other tools

No

Specific language support: Ruby
Some CI servers have built-in support for parsing RSpec or Istanbul output for example and we mention those. Some others make it even easier by detecting Gemfiles or package.json and automate parts of the process for the developer.

Yes

TravisCI is designed to be a simple way to integrate CI/CD in your workflow so it has a couple of features aimed at specific languages, such as Ruby, starting from pre-built containers (with RVM already installed, for example) all the way to automatically running specific platform commands (such as detecting a Gemfile in the root of the project and automatically bundling dependencies). TravisCI also builds a Ruby SDK for easier use of the API.

Yes

Code analysis (automated code reviews) are available for Ruby, as well as specific documentation for setting up a Ruby project: https://scrutinizer-ci.com/docs/guides/ruby. Frameworks like Ruby on Rails are supported. They also provide tools like bundler-audit, for identifying vulnerable gems: https://scrutinizer-ci.com/docs/tools/ruby/bundler-audit/
Specific language support: JavaScript

Yes

TravisCI is designed to be a simple way to integrate CI/CD in your workflow so it has a couple of features aimed at specific languages, such as Javascript, starting from pre-built containers (with node already installed, for example) all the way to automatically running specific platform commands (such as detecting a package.json in the root of the project and running npm test)

Yes

Automated code reviews are available for Javascript as well as specific documentation for setting up a Node.js project: https://scrutinizer-ci.com/docs/guides/javascript. Typescript is also supported.
Integrations
1st party support for common tools (like Slack notifications, various VCS platforms, etc)

Yes

By default, TravisCI is built to work with GitHub. Additionally, there is strong support for 3rd party tools like Coveralls, BrowserStack, etc.

Yes

Light integration with third party systems, mainly code management frameworks like GitHub, Bitbucket, GitLab.
API
Custom integreation is available, via an API or otherwise, it's mentioned separately as it allows further customization than any of the Ecosystem/Integration options

Yes

Offers a feature-rich API that allows both reading data, as well as triggering or cancelling builds.

Yes

Comprehensive REST API available: https://scrutinizer-ci.com/docs/api/
Auditing

N/A

N/A

Unclear from the documentation, but most likely available.
Additional notes

The code analysis features seem great, the offer for similar tools is quite light. Seems similar to lgtm.com

Travis CI build matrix feature how to use it for CI parallelisation

Travis CI parallelism integration

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