Enhance CI with Android change detection and dependency tracking

- Added `check-android-changes` job to detect Android-related changes and conditionally trigger builds.
- Introduced `vcpkg.json` for better dependency management.
- Updated `install_dependencies_windows.bat` to utilize `vcpkg.json` for streamlined dependency installation.

Author: gpx1000

.github/workflows/workflow.yml

@@ -8,6 +8,70 @@ on:
 
 jobs:
 
+  check-android-changes:
+    name: Check Android Changes
+    runs-on: ubuntu-latest
+    outputs:
+      should_build: ${{ steps.check.outputs.should_build }}
+
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 0  # Fetch all history for all branches and tags
+
+      - name: Check for Android changes
+        id: check
+        run: |
+          # For push events, check if workflow file has changed
+          if [ "${{ github.event_name }}" == "push" ] && [ -n "${{ github.event.before }}" ] && [ -n "${{ github.event.after }}" ]; then
+            if git diff --name-only ${{ github.event.before }} ${{ github.event.after }} | grep -q ".github/workflows/workflow.yml"; then
+              echo "Workflow file has changed, building Android"
+              echo "should_build=true" >> $GITHUB_OUTPUT
+              exit 0
+            fi
+          fi
+
+          # For pull requests, check the files changed in the PR
+          if [ "${{ github.event_name }}" == "pull_request" ]; then
+            echo "Checking files changed in pull request..."
+
+            # Check if PR has android label or title contains android
+            if [[ "${{ contains(github.event.pull_request.labels.*.name, 'android') }}" == "true" || \
+                  "${{ contains(github.event.pull_request.title, 'android') }}" == "true" || \
+                  "${{ contains(github.event.pull_request.title, 'Android') }}" == "true" ]]; then
+              echo "PR has android label or title contains android"
+              echo "should_build=true" >> $GITHUB_OUTPUT
+              exit 0
+            fi
+
+            # Get the list of files changed in the PR
+            git fetch origin ${{ github.event.pull_request.base.ref }} --depth=1
+            PR_FILES=$(git diff --name-only origin/${{ github.event.pull_request.base.ref }} ${{ github.sha }})
+          else
+            # For pushes, check the files changed in the last commit
+            echo "Checking files changed in push..."
+
+            # If this is the first commit, build Android
+            if [ "${{ github.event.before }}" == "0000000000000000000000000000000000000000" ]; then
+              echo "First commit, building Android"
+              echo "should_build=true" >> $GITHUB_OUTPUT
+              exit 0
+            fi
+
+            # Get the list of files changed in the push
+            PR_FILES=$(git diff --name-only ${{ github.event.before }} ${{ github.event.after }})
+          fi
+
+          # Check if any Android-related files have changed
+          ANDROID_PATTERN="attachments/34_android.cpp|attachments/35_gltf_ktx.cpp|attachments/android/|attachments/27_shader_depth.(frag|vert)"
+          if echo "$PR_FILES" | grep -E "$ANDROID_PATTERN"; then
+            echo "Android-related files have changed"
+            echo "should_build=true" >> $GITHUB_OUTPUT
+          else
+            echo "No Android-related files have changed"
+            echo "should_build=false" >> $GITHUB_OUTPUT
+          fi
+
   build:
     strategy:
       fail-fast: false
@@ -337,6 +401,10 @@ jobs:
     name: Android Build
     runs-on: ubuntu-latest
 
+    # We need to run a preliminary job to check for changes
+    needs: check-android-changes
+    if: needs.check-android-changes.outputs.should_build == 'true'
+
     steps:
       - uses: actions/checkout@v3
 

scripts/install_dependencies_windows.bat

@@ -23,14 +23,7 @@ if not exist %TEMP%\vcpkg-cache mkdir %TEMP%\vcpkg-cache
 
 :: Install all dependencies at once using vcpkg with parallel installation
 echo Installing all dependencies...
-vcpkg install --triplet=x64-windows --x-manifest-root=%~dp0 --feature-flags=binarycaching,manifests --x-install-root=%VCPKG_INSTALLATION_ROOT%/installed ^
-    glfw3 ^
-    glm ^
-    tinyobjloader ^
-    stb ^
-    tinygltf ^
-    nlohmann-json ^
-    ktx
+vcpkg install --triplet=x64-windows --x-manifest-root=%~dp0\.. --feature-flags=binarycaching,manifests --x-install-root=%VCPKG_INSTALLATION_ROOT%/installed
 
 :: Remind about Vulkan SDK
 echo.

vcpkg.json

@@ -0,0 +1,13 @@
+{
+  "name": "vulkan-tutorial",
+  "version": "1.0.0",
+  "dependencies": [
+    "glfw3",
+    "glm",
+    "tinyobjloader",
+    "stb",
+    "tinygltf",
+    "nlohmann-json",
+    "ktx"
+  ]
+}