If you read this blog post, there is a high chance you’re looking for information about practical differences between scripted and declarative pipeline, correct? You couldn’t find a better place then. I’m going to show you the four most practical differences between those two. Stay with me for a few minutes and enjoy the ride!
2019 was a fantastic year for my blog. I didn’t manage to write articles every month, but it didn’t stop the growth. Today I would like to share with you some numbers. And the reason is simple - you’ve made those numbers possible, so I think you deserve to get some "behind the scenes" facts.
Groovy String API offers many useful methods to make working with strings much more pleasant. Today I would like to show you three, not so very popular, yet convenient methods. Let’s jump straight into it!
In one of the latest blog posts, I have shown you how you can build a Docker image with Java and Maven installed with the SDKMAN! command-line tool. Today I would like to continue the topic and show you, how you can compile your project using two different Java versions in parallel.
I started reading "Cracking the Coding Interview, 6th Edition" book recently and it inspired me to experiment a bit. It’s been a while since I implemented the quicksort algorithm the last time, and I did that in Haskell. I remember some old and imperative implementations in Java, but I never tried to implement it in Groovy. Let’s give it a try!
I was using Travis CI to execute 271 builds and deployments of this blog. Last Friday, I decided to experiment with CircleCI and see if this could be a viable alternative to my current solution. In this blog post, I will explain why I decided to switch, and how to set up CircleCI to deploy Hexo blog to the GitHub Pages without much hustle.
In the last article, I have shown you how you can build a docker image for Jenkins Pipeline using SDKMAN! command-line tool. Today I will show you how you can build multiple different docker images using parallelized Jenkins Pipeline.
A few days ago, I was struggling with some Docker images I use in my Jenkins CI environment. I run some Jenkins Pipelines, and I like to define build environment as code using custom Docker images. Everything was fine until I had to consider running different Java or Maven versions. I decided to use one of my favorite command-line tools - SDKMAN!, to build a highly configurable build environment.
Welcome to the first blog post of the "Jenkins Pipeline Cookbook" series. Today we are focus on working with Jenkins Pipeline environment variables effectively. You will learn how to define env variables, how to updated them, and how to use them in boolean expressions correctly.
A few weeks ago an interesting question was asked on the StackOverflow. Someone experimented with a recursion in Groovy and stepped into Closure.trampoline() [1]. It quickly turned out that using TrampolineClosure makes a recursive execution slower. Is this a valid behavior, or do we do something wrong?