GitHub Actions caching optimization guide for Node.js project with Yarn
I'm confused about I'm trying to debug I'm currently experiencing an scenario with GitHub Actions where the caching mechanism does not seem to work for my Node.js project that uses Yarn... My workflow file is set up to cache the Yarn dependencies, but every time the action runs, it appears to reinstall all the packages instead of using the cache. Here’s the relevant part of my `.github/workflows/main.yml`: ```yaml name: CI on: push: branches: - main jobs: build: runs-on: ubuntu-latest steps: - name: Checkout code uses: actions/checkout@v2 - name: Cache Yarn dependencies uses: actions/cache@v2 with: path: ~/.cache/yarn key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }} restore-keys: | ${{ runner.os }}-yarn- - name: Install dependencies run: yarn install - name: Run tests run: yarn test ``` I confirmed that the `yarn.lock` file does exist and is being updated properly when I run `yarn install` locally. However, when I check the Actions logs, it always shows that Yarn is reinstalling all dependencies, like this: ``` Cache not found for input keys: ubuntu-latest-yarn-<hash> ``` I tried changing the cache `key` format to include more specific identifiers, such as the `YARN_CACHE_FOLDER`, but it hasn’t made a difference. The `restore-keys` option was added in hopes of falling back to any available cache, but still no luck. I also verified that my workflow is on the same branch where the cache should be available. Could someone point out what I might be missing or if there are specific configurations in Yarn or GitHub Actions that need to be adjusted for caching to work effectively? Any help would be greatly appreciated! Thanks for taking the time to read this! I appreciate any insights! Any help would be greatly appreciated!