[CI] Use GitHub Actions for CI

.github/workflows/ci.yml

@@ -0,0 +1,114 @@
+name: CI Examples
+
+permissions:
+  contents: read
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  run-examples:
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+        conan-version: [release, develop]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.11"
+
+      - name: Install CMake
+        uses: jwlawson/actions-setup-cmake@v1.14
+        with:
+          cmake-version: "3.23"
+
+      - name: Install autotools (macOS)
+        if: runner.os == 'macOS'
+        run: brew install automake autoconf
+
+      - name: Install Conan
+        shell: bash
+        run: |
+          python -m pip install --upgrade pip
+          if [[ "${{ matrix.conan-version }}" == "develop" ]]; then
+            pip install -e git+https://github.com/conan-io/conan.git@develop2#egg=conan --upgrade
+          else
+            pip install conan --upgrade
+          fi
+          pip install meson
+          conan --version
+          conan profile detect --force
+
+      - name: Find and run examples
+        shell: bash
+        run: |
+          export PYTHONPATH="${{ github.workspace }}${PYTHONPATH:+:$PYTHONPATH}"
+
+          # Find all ci_test_example files
+          if [[ "${{ runner.os }}" == "Windows" ]]; then
+            EXAMPLES=$(find . -name "ci_test_example.*" -type f \( -name "*.py" -o -name "*.bat" \) | sort)
+          else
+            EXAMPLES=$(find . -name "ci_test_example.*" -type f \( -name "*.py" -o -name "*.sh" \) | sort)
+          fi
+
+          # Filter out examples that require specific versions or tools not available in CI
+          # FIXME: Bazel examples require specific Bazel versions (6.3.2, 7.1.2) that are not installed in GitHub Actions runners
+          EXAMPLES=$(echo "$EXAMPLES" | grep -v "bazeltoolchain" || true)
+          # FIXME: Cross-building examples require cross-compilation toolchains (e.g., arm-linux-gnueabihf-gcc-9) that are not installed in GitHub Actions runners
+          EXAMPLES=$(echo "$EXAMPLES" | grep -v "cross_building" || true)
+
+          # FIXME: Filter out tensorflow examples in PRs
+          IS_PR="${{ github.event_name == 'pull_request' }}"
+          if [[ "$IS_PR" == "true" ]]; then
+            EXAMPLES=$(echo "$EXAMPLES" | grep -v tensorflow || true)
+          fi
+
+          if [[ -z "$EXAMPLES" ]]; then
+            echo "No examples found to run"
+            exit 0
+          fi
+
+          echo "Examples to run:"
+          echo "$EXAMPLES"
+
+          # Run each example
+          set -e
+          while IFS= read -r example; do
+            if [[ -z "$example" ]]; then
+              continue
+            fi
+
+            example_normalized=$(echo "$example" | sed 's|\\|/|g')
+            example_dir=$(dirname "$example_normalized")
+            example_file=$(basename "$example_normalized")
+
+            # Start group for this example
+            echo "::group::Running example: $example_dir"
+
+            cd "${{ github.workspace }}/$example_dir" || exit 1
+
+            if [[ "$example_file" == *.py ]]; then
+              python "$example_file"
+            elif [[ "$example_file" == *.sh ]]; then
+              bash "$example_file"
+            elif [[ "$example_file" == *.bat ]]; then
+              if [[ "${{ runner.os }}" == "Windows" ]]; then
+                cmd //c "$example_file"
+              else
+                echo "Skipping .bat file on non-Windows platform"
+              fi
+            fi
+
+            cd "${{ github.workspace }}" || exit 1
+
+            # End group for this example
+            echo "::endgroup::"
+          done <<< "$EXAMPLES"

examples/conanfile/layout/editable_components/ci_test_example.py

@@ -23,6 +23,10 @@
 # Do a modification to one component, to verify it is used correctly
 replace(os.path.join("greetings", "src", "bye.cpp"), "bye:", "adios:")
 run("conan build greetings")
+# Clean app build to ensure it uses the updated library
+app_build_path = os.path.join("app", "build")
+if os.path.exists(app_build_path):
+    shutil.rmtree(app_build_path)
 cmd_out = run("conan build app")
 assert cmd_out.count("hello: Release!") == 2
 assert cmd_out.count("adios: Release!") == 1

examples/cross_build/android/ndk_basic/ci_test_example.py

@@ -23,7 +23,7 @@
 tools.android:ndk_path={}
 """
 
-ndk_path = {"Darwin": "/opt/homebrew/share/android-ndk", "Linux": "/opt/android-ndk-r23c"}.get(platform.system())
+ndk_path = os.environ.get("ANDROID_NDK") or os.environ.get("ANDROID_NDK_HOME")
 
 if ndk_path:
     profile = profile.format(ndk_path)

examples/extensions/deployers/development_deploy/conanfile.txt

@@ -1,5 +1,5 @@
 [requires]
-zlib/1.2.13
+zlib/1.3.1
 
 [tool_requires]
 cmake/3.25.3

test/examples_tools.py

@@ -1,6 +1,7 @@
 import os
 import subprocess
 import shutil
+import sys
 from contextlib import contextmanager
 import time
 
@@ -49,7 +50,10 @@ def run(cmd, error=False):
     output = ''
 
     for line in iter(process.stdout.readline, ''):
-        print(line, end='', flush=True)
+        # Write directly to stdout to preserve GitHub Actions workflow commands
+        # This ensures ::group:: and ::endgroup:: are detected by GitHub Actions
+        sys.stdout.write(line)
+        sys.stdout.flush()
         output += line
 
     ret = process.wait()
@@ -64,18 +68,3 @@ def run(cmd, error=False):
         raise Exception(f"Cmd succeeded (failure expected): {cmd}\n{output}")
 
     return output
-
-
-def replace(file_path, text, replace):
-    with open(file_path, "r") as f:
-        content = f.read()
-    content2 = content.replace(text, replace)
-    assert content != content2
-    with open(file_path, "w") as f:
-        f.write(content2)
-
-
-def load(file_path):
-    with open(file_path, "r") as f:
-        content = f.read()
-    return content