Access file in script-scm from groovy pipeline script - jenkins

I have a groovy pipeline script checked into scm and loaded from jenkins.
The script is supposed to load a config file, fine-tuning its behavior. The config file is in the same directory as the script.
Can I somehow access this directory from the script? The working directory is set to the workspace, which is not where the script is located. Maybe I can somehow extract the directory of the script itself?

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adding file to jenkins pipeline build folder after cloning repository but before tests stage

I have a file in some folder on my computer that i want to add to the jenkins pipeline build folder before testing stage, without addind this file to the repository. is there a way to do that? this file is a config.yaml that contains a relevant version.
thanks

Adding groovy file from workspace for seed job

I have a seed job in Jenkins to create a job to build the workspace. I want to add the job groovy file from the repository. How do I specify the file path for the grooovy on the seed job build step?
I am trying to add it from the file system on the configuration. I get the error file not found. I have tried adding the complete path and also the name of the file.
I have found the solution for it.
You can specify just the relative path to the workspace to access the groovy files.

Read DSL from file in Jenkins outside of workspace

I know its possible to run a .dsl file from an external source instead of just writing the code of the flow in the job's description, but every time I try to run lets say:
/home/flows/flow_script.dsl
I get the following error:
java.io.FileNotFoundException:/home/flows/flow_script.dsl (No such file or directory)
The path is correct, I can see the file through that path from the shell, but it doesnt let me select anything outside the "builds workspace" apparetly.
I recently ran into this very issue: my DSL script was outside of my workspace (installed via a package). The problem is that the DSL Scripts path is an Ant format that only allows specific patterns (and not absolute paths).
My workaround is hacky, but it did work: add an Execute Shell step before the "Process Job DSLs" step that symlinks the external directory into the workspace.
Something like this:
echo "Creating a symlink from /home/flows to workspace"
ln -sf "/home/flows" .flows
Then you can set the DSL Scripts path to ".flows/flow_script.dsl".
This has some additional caveats, of course: the directory you're symlinking from will need to be accessible by the jenkins user. And it likely violates a lot of best practices.

Configure Jenkins to run Visual Studio bat file before Maven job

I have a Maven module that utilizes the NAR plugin to build some JNI libraries, and in Jenkins I have configured a Maven project to build this module. In order for these libs to be built, the Visual Studio bat file that sets up the path and other environment variables must be run. I have tried several different ways to get this bat file to execute before the Maven commands are called, and none of them have worked correctly. I know that Jenkins isolates all of the build process steps, so it can be difficult to get the environment set up, but I'm hoping someone has solved this particular issue. Here's what I've tried:
calling the bat file as a pre build step.
Using the EnvInject plugin to call the bat file, both as a pre build step and as a pre job step.
Setting the environment variables directly without calling the bat file using EnvInject.
calling the bat file from the mvn.bat file (this failed because it appears Jenkins will call Maven directly, without using the bat file).
As a workaround, I'm using the Freeform project type and setting the build steps to
call the bat file.
Directly call maven with appropriate parameters.
This works, but it's not as nice as using the Maven project type, ex. a failed unit test will fail the entire build instead of just sending a warning. Is there a way to configure this as a Maven project?

Run Ant tast from Jenkins on Perforce

I'm trying to integrate Jenkins with Perforce, but I'm having a few problems.
I managed (apparently, because Jenkins still shows a "Unable to check workspace against depot" message) to link Jenkins to Perforce.
My project includes an Ant script to make the build and I cannot figure out how to use it.
I've added an Ant build step, indicating the name of the ant file (dev_build.xml), but when I run the job Jenkins complains that it cannot find the Ant file.
Jenkins looks for the file in its workspace, but the file is actually located in Perforce's workspace. I expected Jenkins to check out the project but this is not happening: the folder Jenkins\Workspace\MyProject is empty.
I've then copied the Ant file into Jenkins workspace folder, but obviously the Ant fails because it cannot find the source folder.
Any ideas?
I had to create a new perforce workspace dedicated to Jenkins, mapped to the workspace folder.
P4 now synchronizes the files correctly.

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