Buildkite Changelog
What’s new in Buildkite 
Conditional expressions for pipeline steps
Posted October 11, 2019 by Matthew
We've added a new if property that uses a boolean expression to decide whether a step will be run or skipped 💫
You could previously use the branches property to limit the running of a step based on which branch you were building, but this new option allows more complex conditions 😎
steps:
- label: '💨 Smoke Test'
command: smoke-test.sh
if: "build.branch == 'master' || build.message =~ /\\[smoke\\]/i"
The if property is available on all step types; check out the Using Conditionals
documentation for details!
Feature