add sccache

.github/workflows/code_tests_and_checks.yml

@@ -14,6 +14,7 @@ on: # yamllint disable-line rule:truthy
 
 defaults:
   run:
+    shell: bash
     working-directory: code
 
 jobs:
@@ -27,7 +28,23 @@ jobs:
       - name: Install Rust
         run: ../misc/scripts/install_rust.sh
 
+      - name: Run sccache-cache only on non-release runs
+        if: github.event_name != 'release' && github.event_name != 'workflow_dispatch'
+        uses: mozilla-actions/[email protected]
+
+      - name: Set Rust caching env vars only on non-release runs
+        if: github.event_name != 'release' && github.event_name != 'workflow_dispatch'
+        run: |
+          echo 'SCCACHE_GHA_ENABLED=true' >>"${GITHUB_ENV}"
+          echo 'RUSTC_WRAPPER=sccache' >>"${GITHUB_ENV}"
+
+      - name: Run sccache stat for check
+        run: ${SCCACHE_PATH} --show-stats
+
       - name: Run all checks
+        env:
+          SCCACHE_GHA_ENABLED: 'true'
+          RUSTC_WRAPPER: sccache
         run: >-
           cargo run -- -vv check
 
@@ -46,10 +63,29 @@ jobs:
       - name: Install Rust
         run: ../misc/scripts/install_rust.sh
 
+      - name: Run sccache-cache only on non-release runs
+        if: github.event_name != 'release' && github.event_name != 'workflow_dispatch'
+        uses: mozilla-actions/[email protected]
+
+      - name: Set Rust caching env vars only on non-release runs
+        if: github.event_name != 'release' && github.event_name != 'workflow_dispatch'
+        run: |
+          echo 'SCCACHE_GHA_ENABLED=true' >>"${GITHUB_ENV}"
+          echo 'RUSTC_WRAPPER=sccache' >>"${GITHUB_ENV}"
+
+      - name: Run sccache stat for check
+        run: ${SCCACHE_PATH} --show-stats
+
       - name: Run all unit-test
+        env:
+          SCCACHE_GHA_ENABLED: 'true'
+          RUSTC_WRAPPER: sccache
         run: >-
           cargo run -- -vv u-test
 
       - name: Run all integration-tests
+        env:
+          SCCACHE_GHA_ENABLED: 'true'
+          RUSTC_WRAPPER: sccache
         run: >-
           cargo run -- -vv i-test