ci: properly cache yarn deps

.github/workflows/documentation.yml

@@ -38,10 +38,9 @@ jobs:
         uses: actions/setup-node@v3
         with:
           node-version: 16
-          cache: 'yarn'
 
       - name: Install dependencies
-        run: yarn --immutable
+        uses: ./packages/actions/src/yarnCache
 
       - name: Build dependencies
         run: yarn build
@@ -81,10 +80,9 @@ jobs:
         uses: actions/setup-node@v3
         with:
           node-version: 16
-          cache: 'yarn'
 
       - name: Install dependencies
-        run: yarn --immutable
+        uses: ./packages/actions/src/yarnCache
 
       - name: Build actions
         run: yarn workspace @discordjs/actions build

.github/workflows/npm-auto-deprecate.yml

@@ -16,10 +16,9 @@ jobs:
         uses: actions/setup-node@v3
         with:
           node-version: 16
-          cache: 'yarn'
 
       - name: Install dependencies
-        run: yarn --immutable
+        uses: ./packages/actions/src/yarnCache
 
       - name: Deprecate versions
         run: 'yarn npm-deprecate --name "*dev*" --package @discordjs/brokers @discordjs/builders @discordjs/collection discord.js @discordjs/proxy @discordjs/rest @discordjs/util @discordjs/voice @discordjs/ws'

.github/workflows/publish-dev.yml

@@ -42,10 +42,9 @@ jobs:
         with:
           node-version: 16
           registry-url: https://registry.npmjs.org/
-          cache: 'yarn'
 
       - name: Install dependencies
-        run: yarn --immutable
+        uses: ./packages/actions/src/yarnCache
 
       - name: Build dependencies
         run: yarn build

.github/workflows/tests.yml

@@ -20,10 +20,9 @@ jobs:
         uses: actions/setup-node@v3
         with:
           node-version: 16
-          cache: 'yarn'
 
       - name: Install dependencies
-        run: yarn install --immutable
+        uses: ./packages/actions/src/yarnCache
 
       - name: Build dependencies
         run: yarn build

packages/actions/src/yarnCache/action.yml

@@ -0,0 +1,35 @@
+name: 'yarn install'
+description: 'Run yarn install with node_modules linker and cache enabled'
+runs:
+  using: 'composite'
+  steps:
+    - name: Expose yarn config as "$GITHUB_OUTPUT"
+      id: yarn-config
+      shell: bash
+      run: |
+        echo "CACHE_FOLDER=$(yarn config get cacheFolder)" >> $GITHUB_OUTPUT
+
+    - name: Restore yarn cache
+      uses: actions/cache@v3
+      id: yarn-download-cache
+      with:
+        path: ${{ steps.yarn-config.outputs.CACHE_FOLDER }}
+        key: yarn-download-cache-${{ hashFiles('yarn.lock') }}
+        restore-keys: |
+          yarn-download-cache-
+
+    - name: Restore yarn install state
+      id: yarn-install-state-cache
+      uses: actions/cache@v3
+      with:
+        path: .yarn/ci-cache/
+        key: ${{ runner.os }}-yarn-install-state-cache-${{ hashFiles('yarn.lock', '.yarnrc.yml') }}
+
+    - name: Install dependencies
+      shell: bash
+      run: |
+        yarn install --immutable --inline-builds
+      env:
+        YARN_ENABLE_GLOBAL_CACHE: 'false'
+        YARN_NM_MODE: 'hardlinks-local'
+        YARN_INSTALL_STATE_PATH: .yarn/ci-cache/install-state.gz