Cache llvm-cov and other tools separately (#60)

Adopting NethermindEth/rust-template#34 and
NethermindEth/rust-template#35

Author: frozenspider

.github/workflows/coverage-pr.yml

@@ -19,7 +19,21 @@ jobs:
         with:
           ref: ${{ github.event.pull_request.head.sha }}
 
-      - run: cargo install cargo-llvm-cov
+      - name: Cache llvm-cov build
+        id: cache-llvm-cov
+        uses: actions/cache@v4
+        continue-on-error: false
+        with:
+          path: |
+            ~/.cargo/bin/
+            ~/.cargo/registry/index/
+            ~/.cargo/registry/cache/
+            ~/.cargo/git/db/
+            target/
+          key: ${{ runner.os }}-cargo-llvm-cov-${{ hashFiles('**/Cargo.lock') }}
+          restore-keys: ${{ runner.os }}-cargo-llvm-cov
+
+      - run: which cargo-llvm-cov || cargo install cargo-llvm-cov
       - run: rustup component add llvm-tools-preview
       - run: cargo llvm-cov --workspace --lcov --output-path lcov.info --ignore-filename-regex '^examples/'
 
@@ -71,9 +85,24 @@ jobs:
         with:
           ref: ${{ github.event.pull_request.base.sha }}
 
+      - name: Cache llvm-cov build
+        id: cache-llvm-cov
+        if: ${{ steps.base_art.outputs.found == 'false' }}
+        uses: actions/cache@v4
+        continue-on-error: false
+        with:
+          path: |
+            ~/.cargo/bin/
+            ~/.cargo/registry/index/
+            ~/.cargo/registry/cache/
+            ~/.cargo/git/db/
+            target/
+          key: ${{ runner.os }}-cargo-llvm-cov-${{ hashFiles('**/Cargo.lock') }}
+          restore-keys: ${{ runner.os }}-cargo-llvm-cov
+
       - name: Install cargo-llvm-cov (fallback path)
         if: ${{ steps.base_art.outputs.found == 'false' }}
-        run: cargo install cargo-llvm-cov
+        run: which cargo-llvm-cov || cargo install cargo-llvm-cov
 
       - name: Install llvm-tools (fallback path)
         if: ${{ steps.base_art.outputs.found == 'false' }}

.github/workflows/coverage.yml

@@ -14,7 +14,21 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - run: cargo install cargo-llvm-cov
+      - name: Cache llvm-cov build
+        id: cache-llvm-cov
+        uses: actions/cache@v4
+        continue-on-error: false
+        with:
+          path: |
+            ~/.cargo/bin/
+            ~/.cargo/registry/index/
+            ~/.cargo/registry/cache/
+            ~/.cargo/git/db/
+            target/
+          key: ${{ runner.os }}-cargo-llvm-cov-${{ hashFiles('**/Cargo.lock') }}
+          restore-keys: ${{ runner.os }}-cargo-llvm-cov
+
+      - run:  which cargo-llvm-cov || cargo install cargo-llvm-cov
       - run: rustup component add llvm-tools-preview
       - run: cargo llvm-cov --workspace --lcov --output-path lcov.info --ignore-filename-regex '^examples/'
 

.github/workflows/dependency-audit.yml

@@ -32,8 +32,8 @@ jobs:
             ~/.cargo/registry/cache/
             ~/.cargo/git/db/
             target/
-          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
-          restore-keys: ${{ runner.os }}-cargo-
+          key: ${{ runner.os }}-cargo-deny-${{ hashFiles('**/Cargo.lock') }}
+          restore-keys: ${{ runner.os }}-cargo-deny
 
       - name: Run audit-check action
         run: |

.github/workflows/semver-checks.yml

@@ -33,9 +33,9 @@ jobs:
           ~/.cargo/registry/index/
           ~/.cargo/registry/cache/
           ~/.cargo/git/db/
-        key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
+        key: ${{ runner.os }}-cargo-semver-checks-${{ hashFiles('**/Cargo.lock') }}
         restore-keys: |
-          ${{ runner.os }}-cargo-
+          ${{ runner.os }}-cargo-semver-checks
     
     - name: Get latest version tag
       id: get-baseline
@@ -79,4 +79,4 @@ jobs:
         echo "3. Future changes will be checked against tagged versions"
         echo ""
         echo "Note: Semver checking starts from v0.1.0 as this indicates"
-        echo "the beginning of API stability commitments in Rust projects"
+        echo "the beginning of API stability commitments in Rust projects"