Azure : Devops : Pipelines: Task ::: Cache Task

https://docs.microsoft.com/en-us/azure/devops/pipelines/release/caching?view=azure-devops

https://docs.microsoft.com/en-us/azure/devops/pipelines/release/caching?view=azure-devops#maven

Maven

Maven has a local repository where it stores downloads and built artifacts. To enable, set the maven.repo.local option to a path under $(Pipeline.Workspace) and cache this folder.

Example:

YAML

variables:
  MAVEN_CACHE_FOLDER: $(Pipeline.Workspace)/.m2/repository
  MAVEN_OPTS: '-Dmaven.repo.local=$(MAVEN_CACHE_FOLDER)'

steps:
- task: Cache@2
  inputs:
    key: 'maven | "$(Agent.OS)" | **/pom.xml'
    restoreKeys: |
      maven | "$(Agent.OS)"
      maven
    path: $(MAVEN_CACHE_FOLDER)
  displayName: Cache Maven local repo

- script: mvn install -B -e

If you are using a Maven task, make sure to also pass the MAVEN_OPTS variable because it gets overwritten otherwise: