Bazel creates a structured layer between the details of building and testing for individual languages and the users, both human and machine, that perform build operations. This abstraction simplifies workflows and is the foundation for powerful build-adjacent systems not possible with other build tools. Scalable Bazel builds underpin a scalable organization and development culture.
On December 11th, 2023, Bazel 7.0 LTS was released, which includes multiple changes to improve build performance. More details below!
Bazel Invocation Analyzer (BIA) is an open-source tool by EngFlow that analyses the JSON trace profiles generated by Bazel and provides suggestions on how to improve the build performance. You can download the source and run the CLI or use the web UI available at https://analyzer.engflow.com.
BIA has been updated to support the internal changes introduced with the launch of Bazel 7.0 LTS, so you can continue to speed up your builds with the help of BIA. It also features new types of suggestions to help you fine-tune your builds irrespective of whether you are using Bazel 7 already or not.
On October 23 2023, the day before the first European BazelCon, EngFlow and Tweag organized the sixth Bazel Community Day at the Salesforce office, capped off with a happy hour sponsored by Gradle.
Secure and reproducible builds are something we'd all like, and something many of us work on regularly.
One area that is frequently overlooked in the topic is how to securely provide credentials for external services used during a build. Systems often fall back to insecure methods like passing them on the command-line or storing them in plaintext on disk.
In this post, we will provide an overview of common authentication mechanisms and why they should not be considered secure, and then introduce Credential Helpers and how they do provide secure builds.
The alternating sound of ctrl+s and ctrl+r followed by a deep sigh fill my days working on EngFlow's Build and Test UI. I mean, centering divs is already frustrating, but having to glance back and forth from one screen to another while refreshing the browser adds insult to injury. It doesn't help that being your average frontend dev I usually work with no less than a few thousand monitors. How else would I be able to look at the application, the code, and the ever present Flexbox layout cheatsheet at the same time?
Configuring Bazel to authenticate against external services like
Remote Caching, Remote Execution, a Build Event Service, or
external repositories like http_archive or http_file has historically
been challenging for many for users. However as of Bazel 5.4.0, Credential
Helpers provide a simple, extensible, and secure way to inject credentials
into a build.
One of Bazel’s key features is that tests are treated as the same as other build actions. Bazel provides a uniform command line interface for running tests no matter the underlying language or test framework. While there’s much to be said about writing test rules and frameworks that mesh well with Bazel, this post will focus on the experience of running tests as a developer with bazel test. Running tests is a core software engineering workflow, so it’s not surprising Bazel has many useful features for iterating locally with a test.
Once upon a time a young and innocent Antonio spent healthy chunks of his youth playing Snake on a Nokia 3310; chasing apples and dodging his own tail. Surprisingly, much later, he found himself chasing the world of Developer Experience (DevEx) and build engineering, with no alchemy to be found.
On May 23, 2023, EngFlow teamed up with Snap to organize a Bazel Community Day for the Bay Area. Over 70 people attended the event, hosted at Snap's offices in beautiful San Francisco.
EngFlow and Wix bring the Bazel community together in Tel Aviv
On February 23, 2023 EngFlow and Wix teamed up to organize the first Bazel Community Day in Israel. Wix hosted the event in its event space in the picturesque Tel Aviv Port, welcoming guests from the Google Munich Bazel team, as well as engineers from local and global companies.
