github action: split the run of the fuzzers (#5444)

* fix-5443 by using strategy

.github/workflows/fuzzing.yml

@@ -13,52 +13,62 @@ concurrency:
   cancel-in-progress: ${{ github.ref != 'refs/heads/main' }}
 
 jobs:
-  fuzz:
-    name: Run the fuzzers
+  fuzz-build:
+    name: Build the fuzzers
     runs-on: ubuntu-latest
-    env:
-      RUN_FOR: 60
     steps:
     - uses: actions/checkout@v4
     - uses: dtolnay/rust-toolchain@nightly
     - name: Install `cargo-fuzz`
       run: cargo install cargo-fuzz
     - uses: Swatinem/rust-cache@v2
+      with:
+        shared-key: "cargo-fuzz-cache-key"
+        cache-directories: "fuzz/target"
+    - name: Run `cargo-fuzz build`
+      run: cargo +nightly fuzz build
+
+  fuzz-run:
+    needs: fuzz-build
+    name: Run the fuzzers
+    runs-on: ubuntu-latest
+    env:
+      RUN_FOR: 60
+    strategy:
+      matrix:
+        test-target:
+          [
+            fuzz_date,
+            fuzz_test,
+            fuzz_expr,
+            fuzz_parse_glob,
+            fuzz_parse_size,
+            fuzz_parse_time,
+            # adding more fuzz tests here.
+            # e.g. fuzz_test_a,
+          ]
+    steps:
+    - uses: actions/checkout@v4
+    - uses: dtolnay/rust-toolchain@nightly
+    - name: Install `cargo-fuzz`
+      run: cargo install cargo-fuzz
+    - uses: Swatinem/rust-cache@v2
+      with:
+        shared-key: "cargo-fuzz-cache-key"
+        cache-directories: "fuzz/target"
     - name: Restore Cached Corpus
       uses: actions/cache/restore@v3
       with:
-        key: corpus-cache
+        key: corpus-cache-${{ matrix.test-target }}
         path: |
-          fuzz/corpus
-    - name: Run fuzz_date for XX seconds
-      continue-on-error: true
+          fuzz/corpus/${{ matrix.test-target }}
+    - name: Run ${{ matrix.test-target }} for XX seconds
       shell: bash
       run: |
-        cargo +nightly fuzz run fuzz_date -- -max_total_time=${{ env.RUN_FOR }} -detect_leaks=0
-    - name: Run fuzz_test for XX seconds
-      shell: bash
-      run: |
-        cargo +nightly fuzz run fuzz_test -- -max_total_time=${{ env.RUN_FOR }} -detect_leaks=0
-    - name: Run fuzz_expr for XX seconds
-      continue-on-error: true
-      shell: bash
-      run: |
-        cargo +nightly fuzz run fuzz_expr -- -max_total_time=${{ env.RUN_FOR }} -detect_leaks=0
-    - name: Run fuzz_parse_glob for XX seconds
-      shell: bash
-      run: |
-        cargo +nightly fuzz run fuzz_parse_glob -- -max_total_time=${{ env.RUN_FOR }} -detect_leaks=0
-    - name: Run fuzz_parse_size for XX seconds
-      shell: bash
-      run: |
-        cargo +nightly fuzz run fuzz_parse_size -- -max_total_time=${{ env.RUN_FOR }} -detect_leaks=0
-    - name: Run fuzz_parse_time for XX seconds
-      shell: bash
-      run: |
-        cargo +nightly fuzz run fuzz_parse_time -- -max_total_time=${{ env.RUN_FOR }} -detect_leaks=0
+        cargo +nightly fuzz run ${{ matrix.test-target }} -- -max_total_time=${{ env.RUN_FOR }} -detect_leaks=0
     - name: Save Corpus Cache
       uses: actions/cache/save@v3
       with:
-        key: corpus-cache
+        key: corpus-cache-${{ matrix.test-target }}
         path: |
-          fuzz/corpus
+          fuzz/corpus/${{ matrix.test-target }}