feat(ci): Bump up the actions/cache to v4, and force overwriting the …

…cache (#164)

* feat(ci): Bump up the actions/cache to v4, and force overwriting the cache

The force overwriting implementation comes from https://github.com/actions/cache/blob/a2ed59d39b352305bdd2f628719a53b2cc4f9613/tips-and-workarounds.md?plain=1#L38

* Specify shell

.github/workflows/main.yaml

@@ -74,3 +74,5 @@ jobs:
  ########################################
  - uses: ./.github/workflows/manage-runner-post
  name: "🪓 Tear down runner"
+ with:
+ GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/manage-runner-post/action.yaml

@@ -1,6 +1,11 @@
 name: Setup runner
 description: Reusable action for tearing down the github runner
 
+inputs:
+ github_token:
+ description: 'Automatically assigned GitHub Token'
+ required: true
+
 runs:
  using: composite
  steps:
@@ -18,12 +23,35 @@ runs:
  # Cache is saved on main only to avoid cache evictions due to github restrictions:
  # https://docs.github.com/en/actions/using-workflows/caching-dependencies-to-speed-up-workflows#restrictions-for-accessing-a-cache
  ########################################
+ - name: First delete cache entry if it exists
+ if: ${{ github.ref == 'refs/heads/main' }}
+ run: |
+ set -eExou pipefail
+
+ gh extension install actions/gh-actions-cache
+
+ REPO=${{ github.repository }}
+ BRANCH=${{ github.ref }}
+
+ echo "Fetching list of cache key"
+ cacheKeys=$(gh actions-cache list -R $REPO -B $BRANCH | cut -f 1 )
+
+ ## Setting this to not fail the workflow while deleting cache keys.
+ echo "Deleting caches..."
+ for cacheKey in $cacheKeys
+ do
+ gh actions-cache delete $cacheKey -R $REPO -B $BRANCH --confirm || true
+ done
+ echo "Done"
+ env:
+ GH_TOKEN: ${{ inputs.GITHUB_TOKEN }}
+ shell: bash
  - name: "☁️ ⬆️ Saving cache on main only"
  if: ${{ github.ref == 'refs/heads/main' }}
- uses: actions/cache/save@v3
+ uses: actions/cache/save@v4
  with:
  path: "~/.cache/bazel"
  # Configure cache updates
  # https://github.com/actions/cache/blob/main/tips-and-workarounds.md#update-a-cache
  # https://github.com/actions/cache/blob/main/examples.md#---bazel
- key: ${{ runner.os }}-bazel-${{ hashFiles('.bazelversion', '.bazelrc', 'WORKSPACE', 'WORKSPACE.bazel', 'MODULE.bazel', 'Cargo.Bazel.lock') }}
+ key: ${{ runner.os }}-bazel-${{ hashFiles('.bazelversion', '.bazelrc', 'WORKSPACE.bazel', 'Cargo.Bazel.lock', 'requirements.txt') }}

.github/workflows/manage-runner-pre/action.yaml

@@ -20,13 +20,13 @@ runs:
  # Download and unpack cache
  ########################################
  - name: "☁️ ⬇️ Restore bazel cache"
- uses: actions/cache/restore@v3
+ uses: actions/cache/restore@v4
  with:
  path: "~/.cache/bazel"
  # Configure cache updates
  # https://github.com/actions/cache/blob/main/tips-and-workarounds.md#update-a-cache
  # https://github.com/actions/cache/blob/main/examples.md#---bazel
- key: ${{ runner.os }}-bazel-${{ hashFiles('.bazelversion', '.bazelrc', 'WORKSPACE', 'WORKSPACE.bazel', 'MODULE.bazel', 'Cargo.Bazel.lock') }}
+ key: ${{ runner.os }}-bazel-${{ hashFiles('.bazelversion', '.bazelrc', 'WORKSPACE.bazel', 'Cargo.Bazel.lock', 'requirements.txt') }}
  restore-keys: |
  ${{ runner.os }}-bazel-
  - name: "🧹 Clean bazel cache if we're preparing a new release"