Use stack ls dependencies for cache key

ucsd-progsys · May 30, 2024 · fb907b6 · fb907b6
1 parent 6623777
commit fb907b6
Showing 1 changed file with 31 additions and 9 deletions.
diff --git a/.github/workflows/stack.yml b/.github/workflows/stack.yml
@@ -40,19 +40,34 @@ jobs:
 
       - name: Setup Stack
         uses: haskell-actions/setup@v2
+        id: setup
         with:
           ghc-version: ${{ matrix.vers.ghc }}
           cabal-version: ${{ matrix.cabal }}
           enable-stack: true
-          stack-version: "latest"
+          stack-version: '2.15.7'
 
-      - name: Cache ~/.stack and .stack-work
-        uses: actions/cache@v3
+      - name: Configure stack
+        run: |
+          stack config set system-ghc --global true
+          stack config set install-ghc --global false
+
+      - name: List dependencies
+        run: stack ls dependencies json | jq > stack-deps.json
+
+      - name: Restore cached dependency of Pantry (Stackage package index)
+        uses: actions/cache/restore@v4
+        id: pantry
+        env:
+          key: ghc-${{ steps.setup.outputs.ghc-version }}-stack-${{ steps.setup.outputs.stack-version }}
         with:
-          path: |
-            ~/.stack
-            .stack-work
-          key: ${{ runner.os }}-${{ matrix.ghc }}-stack-${{ hashFiles('**/*.cabal', './stack.yaml', './stack.yaml.lock') }}
+          path: ${{ steps.setup.outputs.stack-root }}/pantry
+          key: ${{ env.key }}-plan-${{ hashFiles('stack-deps.json') }}
+          restore-keys: ${{ env.key }}-
+
+      - name: Recompute Stackage package index (~/.stack/pantry)
+        if: steps.pantry.outputs.cache-hit != 'true'
+        run: stack update
 
       - name: Stack resolver check
         if: ${{ matrix.vers.ghc == matrix.ghc-default }}
@@ -63,7 +78,14 @@ jobs:
         run: stack test --no-run-tests --dry-run --lock-file=error-on-write
 
       - name: Build
-        run: stack test --no-run-tests $STACK_FLAGS --resolver ${{ matrix.vers.stackage }}
+        run: stack test --no-run-tests $STACK_FLAGS --resolver ${{ matrix.vers.stackage }} --lock-file=ignore
 
       - name: Test
-        run: stack test --test-arguments "--color=always" $STACK_FLAGS --resolver ${{ matrix.vers.stackage }}
+        run: stack test --test-arguments "--color=always" $STACK_FLAGS --resolver ${{ matrix.vers.stackage }} --lock-file=ignore
+
+      - name: Save cached dependencies of Pantry
+        uses: actions/cache/save@v4
+        if: steps.pantry.outputs.cache-hit != 'true'
+        with:
+          path: ${{ steps.setup.outputs.stack-root }}/pantry
+          key: ${{ steps.cache.outputs.cache-primary-key }}