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Rad
Rad

Reputation: 5012

GitHub Cache with Maven project in subdirectory

I had the following configuration of my GH Action workflow of a simple Maven project.

name: Java CI

on:
  pull_request:
    branches:
      - master

jobs:
  tests:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - name: Set up JDK 11
        uses: actions/setup-java@v1
        with:
          java-version: 11
      - name: Cache Maven repository
        uses: actions/cache@v2
        with:
          path: ~/.m2/repository
          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
          restore-keys: |
            ${{ runner.os }}-maven-
      - name: Verify with Maven
        run: mvn -B -e -ff clean verify

Everything used to work, till I move the Maven project into a code subdirectory:

name: Java CI

on:
  pull_request:
    paths:
      - code/**
    branches:
      - master

jobs:
  tests:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - name: Set up JDK 11
        uses: actions/setup-java@v1
        with:
          java-version: 11
      - name: Cache Maven repository
        uses: actions/cache@v2
        with:
          path: ~/.m2/repository
          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
          restore-keys: |
            ${{ runner.os }}-maven-
      - name: Verify with Maven
        run: mvn -B -e -ff clean verify --file code/pom.xml

Now in the log I see the cache step says Cache not found for input keys: Linux-maven-xxxxxxx, Linux-maven-.

Does anyone know why the cache is not working with the project in a subdirectory? Thanks.

Upvotes: 2

Views: 2201

Answers (1)

Edward Romero
Edward Romero

Reputation: 3106

Check to make sure you are not overriding localRepository in your settings.yaml file. Maven will use default local repository ~/.m2/repository no matter where you put your project directory.

As a test, you can try to change the maven repository path for artifacts if you are not currently overriding the default local maven repo directory

Add following env variable to your workflow before the jobs start

  env: 
     MAVEN_OPTS: "-Dmaven.repo.local=${{ github.workspace }}/repository"

Then call cache action with the following

  - name: Cache Maven repository
    uses: actions/cache@v2
    with:
      path: "${{ github.workspace }}/repository"
      key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
      restore-keys: |
        ${{ runner.os }}-maven-

Upvotes: 1

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