If you use a declarative style Pipeline and only want to trigger the build on a specific branch you can do something like this: String cron_string = BRANCH_NAME == “master” ? “@hourly” : “” pipeline { agent none triggers { cron(cron_string) } stages { // do something } } Found on Jenkins Jira
You can use the error step from the pipeline DSL to fail the current build. error(“Build failed because of this and that..”)
Use JsonSlurperClassic instead. Since Groovy 2.3 (note: Jenkins 2.7.1 uses Groovy 2.4.7) JsonSlurper returns LazyMap instead of HashMap. This makes new implementation of JsonSlurper not thread safe and not serializable. This makes it unusable outside of @NonDSL functions in pipeline DSL scripts. However you can fall-back to groovy.json.JsonSlurperClassic which supports old behavior and could be … Read more
Now, the sh step supports returning stdout by supplying the parameter returnStdout. // These should all be performed at the point where you’ve // checked out your sources on the slave. A ‘git’ executable // must be available. // Most typical, if you’re not cloning into a sub directory gitCommit = sh(returnStdout: true, script: ‘git … Read more
You need to use brackets when using the fileExists step in an if condition or assign the returned value to a variable Using variable: def exists = fileExists ‘file’ if (exists) { echo ‘Yes’ } else { echo ‘No’ } Using brackets: if (fileExists(‘file’)) { echo ‘Yes’ } else { echo ‘No’ }
If you want to use a file (since a script is the thing generating the value you need), you could use readFile as seen below. If not, use sh with the script option as seen below: // Define a groovy local variable, myVar. // A global variable without the def, like myVar=”initial_value”, // was required … Read more
When Jenkins Pipeline was first created, Groovy was selected as the foundation. Jenkins has long shipped with an embedded Groovy engine to provide advanced scripting capabilities for admins and users alike. Additionally, the implementors of Jenkins Pipeline found Groovy to be a solid foundation upon which to build what is now referred to as the … Read more
IntelliJ IDEA expects the standard Groovy SDK layout which is provided with the official distributions available at https://groovy.apache.org/download.html. Just download, unpack into any directory, specify this directory as the library home. Homebrew package layout may be different, however it may have the standard layout in the libexec subdirectory in some cases. Try /usr/local/opt/groovy/libexec (use Cmd … Read more
You can use the timeout step: timeout(20) { node { sh ‘foo’ } } If you need a different TimeUnit than MINUTES, you can supply the unit argument: timeout(time: 20, unit: ‘SECONDS’) { EDIT Aug 2018: Nowadays with the more common declarative pipelines (easily recognized by the top-level pipeline construct), timeouts can also be specified … Read more
You can use the dir step, example: dir(“folder”) { sh “pwd” } The folder can be relative or absolute path.