Remove separate cmake_python_api github action (#1923)

Remove separate cmake_python_api github action and have ci_build_cmake
and ci_build_cmake_llvm always create the python bindings.
    
This should cut down on rebuilding LLVM itself which takes ~5 minutes
with ccache and much longer on new builds.

.github/workflows/buildAndTestCMake.yml

@@ -71,12 +71,7 @@ jobs:
       run: |
         ./build_tools/github_actions/ci_build_cmake_llvm.sh "$LLVM_PROJECT_DIR" "$LLVM_BUILD_DIR"
 
-    - name: Build and Test StableHLO
+    - name: Build and Test StableHLO (with Python bindings)
       shell: bash
       run: |
-        ./build_tools/github_actions/ci_build_cmake.sh "$LLVM_BUILD_DIR" "$STABLEHLO_BUILD_DIR"
-
-    - name: Build and Test StableHLO Python API
-      shell: bash
-      run: |
-        ./build_tools/github_actions/ci_build_cmake_python_api.sh "$LLVM_PROJECT_DIR" "$STABLEHLO_PYTHON_BUILD_DIR" "$GITHUB_WORKSPACE"
+        ./build_tools/github_actions/ci_build_cmake.sh "$LLVM_BUILD_DIR" "$STABLEHLO_BUILD_DIR"

.gitignore

@@ -7,3 +7,7 @@ llvm-project
 llvm-build
 .vscode
 .cache
+.idea/
+**/__pycache__
+*.whl
+**/*.egg-info/

CMakeLists.txt

@@ -135,10 +135,6 @@ add_definitions(${LLVM_DEFINITIONS})
 #-------------------------------------------------------------------------------
 
 if(STABLEHLO_ENABLE_BINDINGS_PYTHON)
-  if(NOT STABLEHLO_EXTERNAL_PROJECT_BUILD)
-    message(WARNING "StableHLO Python bindings are not supported in standalone mode")
-  endif()
-
   include(MLIRDetectPythonEnv)
   mlir_configure_python_dev_packages()
 endif()

build_tools/github_actions/ci_build_cmake.sh

@@ -33,13 +33,14 @@ cmake -GNinja \
   -B"$STABLEHLO_BUILD_DIR" \
   -DLLVM_ENABLE_LLD=ON \
   -DCMAKE_BUILD_TYPE=Release \
-  -DLLVM_ENABLE_ASSERTIONS=On \
+  -DLLVM_ENABLE_ASSERTIONS=ON \
   -DMLIR_DIR="$LLVM_BUILD_DIR/lib/cmake/mlir" \
   -DCMAKE_CXX_COMPILER=clang++ \
   -DCMAKE_CXX_COMPILER_LAUNCHER=ccache \
   -DCMAKE_C_COMPILER=clang \
   -DCMAKE_C_COMPILER_LAUNCHER=ccache \
-  -DSTABLEHLO_ENABLE_STRICT_BUILD=On
+  -DSTABLEHLO_ENABLE_STRICT_BUILD=ON \
+  -DSTABLEHLO_ENABLE_BINDINGS_PYTHON=ON
 
 # Build and Test StableHLO
 cd "$STABLEHLO_BUILD_DIR"

build_tools/github_actions/ci_build_cmake_llvm.sh

@@ -34,6 +34,7 @@ cmake -GNinja \
   -DLLVM_ENABLE_PROJECTS=mlir \
   -DLLVM_TARGETS_TO_BUILD=host \
   -DLLVM_INCLUDE_TOOLS=ON \
+  -DMLIR_ENABLE_BINDINGS_PYTHON=ON \
   -DLLVM_ENABLE_BINDINGS=OFF \
   -DLLVM_BUILD_TOOLS=OFF \
   -DLLVM_INCLUDE_TESTS=OFF \