Caching of gradle dependency files (not working)

GitLab CI/CD
#1

Caching gradle build artifacts/dependencies

  • I am currently leveraging caching of gradle dependency files to speed up performance between build/test stages. And while it appears based on logging that thousands of files are cached and restored between build/test, the stages still re-download all of the dependency artifacts anyway based on gradle debug output (-i).

  • build ends with .gradle/* files being cached, and test begins with the cache being extracted.

  • Dependency artifacts are downloaded to /tmp, and I have determined that that is governed by -Djava.io.tmpdir, but those files appear to be deleted before gitlab-ci caches the files. I attempted to set tmpdir to a directory inside of $CI_PROJECT_DIR, and then including that in the files list, but it is always empty.

  • Local version of cache is used, not something uploaded to a shared cache server.

  • I need to figure out why gradle downloads all of the dependency artifacts after the cache has been restored.

  • What version are you on? Are you using self-managed or GitLab.com?

    • GitLab (Hint: /help): EE 13.6.4 self-managed
    • Runner (Hint: /admin/runners): unk

  • gitlab-ci.yml:

stages:
  - build
  - test

variables:
  GRADLE_OPTS: "-Dorg.gradle.daemon=false -Xmx1024m"

.cache:
  cache:
    key:
      files:
        - build.gradle
        - libraries.gradle
      paths:
        - .gradle/cache
        - .gradle/wrapper

before_script:
  - export GRADLE_USER_HOME=`pwd`/.gradle
  - export JAVA_HOME=/usr/lib/jvm/jdk-11/

build-text:
  extends: .cache
  stage: build
  image:
    name: ...
  artifacts:
    paths:
      - "**/build/**/*.jar"
    expire_in: 1 week
  script:
    - /bin/sh $CI_PROJECT_DIR/gradlew --build-cache -i assemble

test-text:
  extends: .cache
  stage: test
  image:
    name: ...
  script:
    - /bin/sh $CI_PROJECT_DIR/gradlew  -i test