fixup! build: skip sscache action on non-main branches

Co-authored-by: Antoine du Hamel <duhamelantoine1995@gmail.com>

Author: joyeecheung

.github/workflows/build-tarball.yml

@@ -102,8 +102,8 @@ jobs:
     needs: build-tarball
     runs-on: ubuntu-24.04
     env:
-      CC: ${{ (github.base_ref == 'main' || github.ref_name == 'main') && 'sccache clang-19' || 'clang-19' }}
-      CXX: ${{ (github.base_ref == 'main' || github.ref_name == 'main') && 'sccache clang++-19' || 'clang++-19' }}
+      CC: ${{ (github.base_ref == 'main' || github.ref_name == 'main') && 'sccache' || '' }} clang-19
+      CXX: ${{ (github.base_ref == 'main' || github.ref_name == 'main') && 'sccache' || '' }} clang++-19
       SCCACHE_GHA_ENABLED: ${{ github.base_ref == 'main' || github.ref_name == 'main' }}
       SCCACHE_IDLE_TIMEOUT: '0'
     steps:

.github/workflows/test-shared.yml

@@ -196,9 +196,9 @@ jobs:
           nix-shell \
             -I nixpkgs=./tools/nix/pkgs.nix \
             --pure --keep TAR_DIR --keep FLAKY_TESTS \
-            ${{ (github.base_ref == 'main' || github.ref_name == 'main') && '--keep SCCACHE_GHA_VERSION --keep ACTIONS_CACHE_SERVICE_V2 --keep ACTIONS_RESULTS_URL --keep ACTIONS_RUNTIME_TOKEN' || '' }} \
+            --keep SCCACHE_GHA_VERSION --keep ACTIONS_CACHE_SERVICE_V2 --keep ACTIONS_RESULTS_URL --keep ACTIONS_RUNTIME_TOKEN \
             --arg loadJSBuiltinsDynamically false \
-            ${{ (github.base_ref == 'main' || github.ref_name == 'main') && '--arg ccache ''(import <nixpkgs> {}).sccache''' || '' }} \
+            --arg ccache '${{ (github.base_ref == 'main' || github.ref_name == 'main') && 'import <nixpkgs> {}).sccache' || 'null' }}' \
             --arg devTools '[]' \
             --arg benchmarkTools '[]' \
             ${{ endsWith(matrix.system, '-darwin') && '--arg withAmaro false --arg withLief false --arg withSQLite false --arg extraConfigFlags ''["--without-inspector" "--without-node-options"]'' \' || '\' }}