Why won't groovy run in Jenkins pipeline? - jenkins

I am currently trying to run a groovy script from my pipeline as one of my nodes, but I ran into this error:
[CompanyName] Running shell script
+ ./ideainspect.groovy
env: groovy: No such file or directory
Also, I tried installing the plugin for groovy, but for some reason, it won't install. Whenever I refresh the page for tools, the installer goes away. Am I installing groovy wrong? Please help!
Edit: Relevant Data
stage 'Static Analysis'
node {
dir("Android/btMobileApp") {
sh "./ideainspect.groovy"
sh "./gradlew checkstyle lintDebug"
}
}
And the ideainspect.groovy file is an executable with the shebang #!/usr/bin/env groovy, which could be the problem.

Does your jenkins user have groovy on its path? If so ditch the shebang and try
sh 'groovy ideainspect.groovy'
If it's not on the path, you can try
sh '/usr/bin/groovy ideainspect.groovy'
(or wherever groovy is installed)
Or alternatively add it to the path environment variable using Manage Jenkins -> Configure Systems. This may not be appropriate if you have lots of projects using different versions of groovy

Related

How to call external groovy script from jenkins pipeline

I am going through a jenkins pipeline someone else did for my organization. I saw inside that jenkins pipeline it has called to a external groovy script but I have no idea about that process.
This is how it has been called.
sh "groovy -cp /apps/scripts /apps/scripts/BuildReport.groovy ${env.BUILD_URL} ${env.BUILD_ID}"
I know ${env.BUILD_URL} ${env.BUILD_ID} are the arguments that has been passed to the groovy script. But what is the meaning of groovy -cp ?
and why /apps/scripts has mentioned two times?
can someone clear please..? Thanks in advance..!
The sh command is using the Groovy installation of your Jenkins Agent. -cp argument specifies the classpath, this is where your additional dependencies will reside. For example, if BuildReport.groovy requires additional dependencies you can point to a directory where the additional dependencies are located. The following is from the groovy man pages.
-cp, -classpath, --classpath=<path>
Specify where to find the class files - must be
first argument
Having said that, in your case, if you don't have any dependent Classes, specifying the classpath would be redundant.

Jenkins Unable to Detect the Ant

I have installed jenkins in windows machine, and i configured environment variable as well.
When i am checking ant -version in cmd i can able to get the response from the terminal "Apache Ant version 1.7.1 compiled on June 27 2008".
Jenkins Configuration
Ant plugin installed.
Ant home configured in jenkins
Ant config in jenkins
I am checking ant -version in pipeline script, but i am getting build failed in jenkins with following error message "ant' is not recognized as an internal or external command"
stage('studio'){
steps {
bat 'ant -version'
}
}
Can you please someone help on this issue.
You are mssing some details in the construction .. bat does not know about ant. See How to invoke Ant in a Jenkins Groovy Pipeline
def antVersion = 'Ant1.9.1'
withEnv( ["ANT_HOME=${tool antVersion}"] ) {
bat '%ANT_HOME%/bin/ant.bat target1 target2'`
}
Also, don't name it ANT_HOME, but something relevant like ant-1.7.1

Jenkinsfile Pipeline dynamic environment modification at runtime

I need to get GitVersion.exe variables in my Jenkins pipeline.
The GitVersion documentation gives a hint on how to do that. Essentially call gitversion /output buildserver.
This call does add the variables to the current step and they are lost once the step completes. I can show this call executes when combining a set command in the same bat execution. The second set shows the variables are gone from the environment.
bat 'nuget install GitVersion.CommandLine -OutputDirectory c:/packages -Version 3.6.5'
bat 'c:/packages/GitVersion.CommandLine.3.6.5/tools/GitVersion.exe /output buildserver && set'
bat 'set'
The documentation of GitVersion is aware of that and suggests to use EnvInject.
Installing the plugin and executing the same pipeline did not change the result. I read that the Plugin is not made for pipelines so that may have something to do with it.
Pipelines support a syntax for environment.
Following that syntax I can set static variables at the top of my pipeline like this:
environment {
ASuperVariable = 'MySuperVariable'
}
What I need is combining those calls so that I can add run time variables to the Jenkinsfile pupeline.
environment {
bat 'gitversion /output buildserver'
}
Now obviously the above call is not even syntax correct. Is there a way to mark a section so that the contained environment changes are available for other steps?
EDIT:
This is still unsolved. At the moment I need to create a batch script and pass the tool into it as an argument. Inside the batch I can call the tool to add to the environment of the batch script and use that wile the batch is running. A Multi line batch in the Jenkins file could be a solution if the process remains the same over all the multiple lines.
Not sure whether you would be able to use scripted pipeline or at least a script block inside declarative. It'd be quite easy doing so:
withEnv(['ASuperVariable=MySuperVariable']) {
echo env.ASuperVariable
}
Or when calling a windows cmd script:
node('win') {
withEnv(['ASuperVariable=MySuperVariable']) {
bat 'echo %ASuperVariable%'
}
}

Jenkins: Running groovy script with ant commands

I have a groovy script with ant commands on it. The script is successfully run in my local machine but when I tried it with Jenkins the groovy script always fail. Jenkins always return error that "ant can't create task or type p4Change". I already added Apache ant support in the global configuration. How do I configure ant to successfully run the groovy script I have. Any idea. Thanks.
Sample code snippets:
I have execute.groovy file with ant commands
ant=new AntBuilder()
def checkChanges {
ant.p4change(description:"Checking",port:'perforce:1666',user:optional,view:"'${workspace}'...")}
And I created a batch file that will run the execute.groovy file
call groovy execute.groovy project bopolz18 -c bopolz18.Workspace 150718
In my machine this works well but in Jenkins when I execute the batch command it fails giving the error mention above.

Execute a script from jenkins pipeline

I have a jenkins pipeline that builds a java artifact,
copies it to a directory and then attempts to execute a external script.
I am using this syntax within the pipeline script to execute the external script
dir('/opt/script-directory') {
sh './run.sh'
}
The script is just a simple docker build script, but the build will fail
with this exception:
java.io.IOException: Failed to mkdirs: /opt/script-directory#tmp/durable-ae56483c
The error is confusing because the script does not create any directories. It is just building a docker image and placing the freshly built java artifact in that image.
If I create a different job in jenkins that executes the external script as
its only build step and then call that job from my pipeline script using this syntax:
build 'docker test build'
everything works fine, the script executes within the other job and the pipeline
continues as expected.
Is this the only way to execute a script that is external to the workspace?
What am I doing wrong with my attempt at executing the script from within
the pipeline script?
The issue is that the jenkins user (or whatever the user is that runs the Jenkins slave process) does not have write permission on /opt and the sh step wants to create the script-directory#tmp/durable-ae56483c sub-directory there.
Either remove the dir block and use the absolute path to the script:
sh '/opt/script-directory/run.sh'
or give write permission to jenkins user to folder /opt (not preferred for security reasons)
Looks like a bug in Jenkins, durable directories are meant to store recovery information e.g. before executing an external script using sh.
For now all you can do is make sure that /opt/script-directory has +r +w and +x set for jenkins user.
Another workaround would be not to change the current directory, just execute sh with it:
sh '/opt/script-directory/run.sh'
I had a similar concern when trying to execute a script in a Jenkins pipeline using a Jenkinsfile.
I was trying to run a script restart_rb.sh with sudo.
To run it I specified the present working directory ($PWD):
sh 'sudo sh $PWD/restart_rb.sh'

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