Install a specific CodeQL version.

.github/actions/install-codeql/action.yml

@@ -0,0 +1,48 @@
+name: Setup CodeQL CLI
+description: |
+  Install a CodeQL CLI or re-use an existing one from the cache and it to the path.
+inputs:
+  codeql-cli-version:
+    description: |
+      The version of the CodeQL CLI to be downloaded.
+
+runs:
+  using: composite
+  steps:
+    - name: Cache CodeQL
+      id: cache-codeql
+      uses: actions/cache@v4
+      with:
+        # A list of files, directories, and wildcard patterns to cache and restore
+        path: ${{github.workspace}}/codeql_home
+        # An explicit key for restoring and saving the cache
+        key: codeql-home-${{ inputs.codeql-cli-version }}
+
+    - name: Install CodeQL
+      if: steps.cache-codeql.outputs.cache-hit != 'true'
+      shell: bash
+      env:
+        GITHUB_TOKEN: ${{ github.token }}
+        CODEQL_HOME: ${{ github.workspace }}/codeql_home
+        CODEQL_CLI_VERSION: ${{ inputs.codeql-cli-version }}
+      run: |
+        mkdir -p $CODEQL_HOME
+        echo "Change directory to $CODEQL_HOME"
+        pushd $CODEQL_HOME
+
+        echo "Downloading CodeQL CLI v${CODEQL_CLI_VERSION}."
+        gh release download "v${CODEQL_CLI_VERSION}" --repo https://github.com/github/codeql-cli-binaries --pattern codeql-linux64.zip
+
+        echo "Unzipping CodeQL CLI."
+        unzip -q codeql-linux64.zip
+
+        popd
+        echo "Done."
+
+    - name: Add CodeQL to the PATH
+      shell: bash
+      env:
+        CODEQL_HOME: ${{ github.workspace }}/codeql_home
+      run: |
+        echo "Adding CodeQL CLI to the PATH."
+        echo "$CODEQL_HOME/codeql" >> $GITHUB_PATH

.github/workflows/ci.yml

@@ -5,6 +5,9 @@ on:
     branches: [ main ]
   workflow_dispatch:
 
+env:
+  CODEQL_CLI_VERSION: 2.19.2
+
 jobs:
   compile-and-test:
     runs-on: ubuntu-latest
@@ -25,15 +28,12 @@ jobs:
             src:
               - '${{ matrix.language }}/**'
 
-      - name: Initialize CodeQL
+      - name: Setup CodeQL
         if: steps.changes.outputs.src == 'true'
-        run: |
-          VERSION="$(find "${{ runner.tool_cache }}/CodeQL/" -maxdepth 1 -mindepth 1 -type d -print \
-                       | sort \
-                       | tail -n 1 \
-                       | tr -d '\n')"
-          echo "$VERSION/x64/codeql" >> $GITHUB_PATH
-
+        uses: ./.github/actions/install-codeql
+        with:
+          codeql-cli-version: ${{ env.CODEQL_CLI_VERSION }}
+
       - name: Install Packs
         if: steps.changes.outputs.src == 'true'
         env:
@@ -171,14 +171,11 @@ jobs:
             src:
               - '${{ matrix.language }}/ext/**'
 
-      - name: Initialize CodeQL
+      - name: Setup CodeQL
         if: steps.changes.outputs.src == 'true'
-        run: |
-          VERSION="$(find "${{ runner.tool_cache }}/CodeQL/" -maxdepth 1 -mindepth 1 -type d -print \
-                       | sort \
-                       | tail -n 1 \
-                       | tr -d '\n')"
-          echo "$VERSION/x64/codeql" >> $GITHUB_PATH
+        uses: ./.github/actions/install-codeql
+        with:
+          codeql-cli-version: ${{ env.CODEQL_CLI_VERSION }}
 
       - name: Install Packs
         if: steps.changes.outputs.src == 'true'
@@ -209,14 +206,11 @@ jobs:
             src:
               - '${{ matrix.language }}/ext-library-sources/**'
 
-      - name: Initialize CodeQL
+      - name: Setup CodeQL
         if: steps.changes.outputs.src == 'true'
-        run: |
-          VERSION="$(find "${{ runner.tool_cache }}/CodeQL/" -maxdepth 1 -mindepth 1 -type d -print \
-                       | sort \
-                       | tail -n 1 \
-                       | tr -d '\n')"
-          echo "$VERSION/x64/codeql" >> $GITHUB_PATH
+        uses: ./.github/actions/install-codeql
+        with:
+          codeql-cli-version: ${{ env.CODEQL_CLI_VERSION }}
 
       - name: Install CodeQL
         if: steps.changes.outputs.src == 'true'
@@ -240,14 +234,11 @@ jobs:
             src:
               - 'configs/**'
 
-      - name: Initialize CodeQL
+      - name: Setup CodeQL
         if: steps.changes.outputs.src == 'true'
-        run: |
-          VERSION="$(find "${{ runner.tool_cache }}/CodeQL/" -maxdepth 1 -mindepth 1 -type d -print \
-                       | sort \
-                       | tail -n 1 \
-                       | tr -d '\n')"
-          echo "$VERSION/x64/codeql" >> $GITHUB_PATH
+        uses: ./.github/actions/install-codeql
+        with:
+          codeql-cli-version: ${{ env.CODEQL_CLI_VERSION }}
 
       - name: "Check Configurations"
         if: steps.changes.outputs.src == 'true'