feat: add caching to workflows

.github/workflows/build-server-candidate.yml

@@ -18,6 +18,14 @@ jobs:
           fetch-depth: 0
           ref: ${{ github.ref }}
 
+      - name: Cache Maven dependencies
+        uses: actions/cache@v3
+        with:
+          path: ~/.m2/repository
+          key: ${{ runner.os }}-maven-${{ hashFiles('**/server/pom.xml') }}
+          restore-keys: |
+            ${{ runner.os }}-maven-
+
       - name: Set lowercase repo name
         id: repo
         run: echo "name=${GITHUB_REPOSITORY,,}" >> $GITHUB_OUTPUT

.github/workflows/ci-main-backend.yml

@@ -25,6 +25,14 @@ jobs:
         with:
           fetch-depth: 0
 
+      - name: Cache Maven dependencies
+        uses: actions/cache@v3
+        with:
+          path: ~/.m2/repository
+          key: ${{ runner.os }}-maven-${{ hashFiles('**/server/pom.xml') }}
+          restore-keys: |
+            ${{ runner.os }}-maven-
+
       - name: Set lowercase repo name
         id: repo
         run: echo "name=${GITHUB_REPOSITORY,,}" >> $GITHUB_OUTPUT

.github/workflows/ci-pr-backend.yml

@@ -26,6 +26,14 @@ jobs:
         with:
           fetch-depth: 0
 
+      - name: Cache Maven dependencies
+        uses: actions/cache@v3
+        with:
+          path: ~/.m2/repository
+          key: ${{ runner.os }}-maven-${{ hashFiles('**/server/pom.xml') }}
+          restore-keys: |
+            ${{ runner.os }}-maven-
+
       - name: Run Check Style
         working-directory: ./server
         run: ./mvnw --no-transfer-progress checkstyle:check -Dcheckstyle.skip=false
@@ -53,6 +61,14 @@ jobs:
         with:
           fetch-depth: 0
 
+      - name: Cache Maven dependencies
+        uses: actions/cache@v3
+        with:
+          path: ~/.m2/repository
+          key: ${{ runner.os }}-maven-${{ hashFiles('**/server/pom.xml') }}
+          restore-keys: |
+            ${{ runner.os }}-maven-
+
       - name: Set lowercase repo name
         id: repo
         run: echo "name=${GITHUB_REPOSITORY,,}" >> $GITHUB_OUTPUT

.github/workflows/ci-pr-frontend.yml

@@ -31,11 +31,13 @@ jobs:
         with:
           fetch-depth: 0
 
-      - name: Set up Node.js
-        uses: actions/setup-node@v4
+      - name: Cache npm dependencies
+        uses: actions/cache@v3
         with:
-          node-version: '20'
-          cache: 'npm'
+          path: ~/.npm
+          key: ${{ runner.os }}-npm-${{ hashFiles('**/client/package-lock.json') }}
+          restore-keys: |
+            ${{ runner.os }}-npm-
 
       - name: Install dependencies
         run: npm install