Is there an built-in way or plugin to get Jenkins to produce SHA256 hashes for my artifacts?

Question

My new corporate overlords require that I have a SHA256 hash of each artifact on the customer portal. Of course, I can generate this myself or do it in build script or Makefile, but this feels like the sort of thing Jenkins would be able to do.

Answer 1

If your builds are running on Unix/Linux, from your Pipeline/Jenkinsfile, you can shell out to sha256sum:

sha256sum = sh(returnStdout: true, script: "sha256sum '${fileName}'")

If your builds are running on Windows, you can shell out to Get-FileHash (I haven't tested this):

sha256sum = powershell(
  returnStdout: true, 
  script: "Get-FileHash -Algorithm sha256 -Path '${fileName}' | Select -ExpandProperty Hash"
)

Answer 2

You can use the jenkins utilty step: sha256

https://www.jenkins.io/doc/pipeline/steps/pipeline-utility-steps/

def hash = sha256 file: 'myfile.txt'