Remove use of python setup.py develop/install in the project

.github/workflows/conda-package.yml

@@ -633,7 +633,7 @@ jobs:
           do
             pushd $d
             conda activate --stack ${{ env.BUILD_ENV_NAME }}
-            CC=icx CXX=icpx python setup.py develop -G Ninja  || exit 1
+            CC=icx CXX=icpx python setup.py build_ext --inplace -G Ninja  || exit 1
             conda deactivate
             python -m pytest tests || exit 1
             popd

.github/workflows/generate-docs.yml

@@ -75,14 +75,15 @@ jobs:
           source /opt/intel/oneapi/setvars.sh
           wget https://github.com/vovkos/doxyrest/releases/download/doxyrest-2.1.2/doxyrest-2.1.2-linux-amd64.tar.xz
           tar xf doxyrest-2.1.2-linux-amd64.tar.xz
-          python setup.py develop -G Ninja --build-type=Release \
+          python setup.py build_ext --inplace --generator=Ninja --build-type=Release \
               --                                              \
               -DCMAKE_C_COMPILER:PATH=$(which icx)            \
               -DCMAKE_CXX_COMPILER:PATH=$(which icpx)         \
               -DDPCTL_GENERATE_DOCS=ON                        \
               -DDPCTL_ENABLE_DOXYREST=ON                      \
               -DDoxyrest_DIR=`pwd`/doxyrest-2.1.2-linux-amd64 \
               -DCMAKE_VERBOSE_MAKEFILE=ON
+          python -m pip install -e . --no-build-isolation
           python -c "import dpctl; print(dpctl.__version__)" || exit 1
           pushd "$(find _skbuild -name cmake-build)" || exit 1
           cmake --build . --target Sphinx || exit 1

.github/workflows/os-llvm-sycl-build.yml

@@ -146,7 +146,8 @@ jobs:
         shell: bash -l {0}
         run: |
           source set_allvars.sh
-          CC=clang CXX=clang++ python setup.py develop -G Ninja
+          CC=clang CXX=clang++ python setup.py build_ext --inplace --generator=Ninja
+          python -m pip install -e . --no-build-isolation
 
       - name: Run lsplatforms
         shell: bash -l {0}

scripts/_build_helper.py

@@ -0,0 +1,157 @@
+#                      Data Parallel Control (dpctl)
+#
+# Copyright 2025 Intel Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import os
+import shutil
+import subprocess
+import sys
+
+
+def resolve_compilers(
+    oneapi: bool,
+    c_compiler: str,
+    cxx_compiler: str,
+    compiler_root: str,
+):
+    is_linux = "linux" in sys.platform
+
+    if oneapi or (
+        c_compiler is None and cxx_compiler is None and compiler_root is None
+    ):
+        return "icx", ("icpx" if is_linux else "icx")
+
+    if (
+        (c_compiler is None or not os.path.isabs(c_compiler))
+        and (cxx_compiler is None or not os.path.isabs(cxx_compiler))
+        and (not compiler_root or not os.path.exists(compiler_root))
+    ):
+        raise RuntimeError(
+            "--compiler-root option must be set when using non-default DPC++ "
+            "layout unless absolute paths are provided for both compilers"
+        )
+
+    # default values
+    if c_compiler is None:
+        c_compiler = "icx"
+    if cxx_compiler is None:
+        cxx_compiler = "icpx" if is_linux else "icx"
+
+    for name, opt_name in (
+        (c_compiler, "--c-compiler"),
+        (cxx_compiler, "--cxx-compiler"),
+    ):
+        if os.path.isabs(name):
+            path = name
+        else:
+            path = os.path.join(compiler_root, name)
+        if not os.path.exists(path):
+            raise RuntimeError(f"{opt_name} value {name} not found")
+    return c_compiler, cxx_compiler
+
+
+def run(cmd: list[str], env: dict[str, str] = None, cwd: str = None):
+    print("+", " ".join(cmd))
+    subprocess.check_call(
+        cmd, env=env or os.environ.copy(), cwd=cwd or os.getcwd()
+    )
+
+
+def capture_cmd_output(cmd: list[str], cwd: str = None):
+    print("+", " ".join(cmd))
+    return (
+        subprocess.check_output(cmd, cwd=cwd or os.getcwd())
+        .decode("utf-8")
+        .strip("\n")
+    )
+
+
+def err(msg: str, script: str):
+    print(f"[{script}][error] {msg}", file=sys.stderr)
+
+
+def log_cmake_args(cmake_args: list[str], script: str):
+    print(f"[{script}] Using CMake args:\n{' '.join(cmake_args)}")
+
+
+def make_cmake_args(
+    c_compiler: str = None,
+    cxx_compiler: str = None,
+    level_zero: bool = True,
+    glog: bool = False,
+    verbose: bool = False,
+    other_opts: str = None,
+):
+    args = [
+        f"-DCMAKE_C_COMPILER:PATH={c_compiler}" if c_compiler else "",
+        f"-DCMAKE_CXX_COMPILER:PATH={cxx_compiler}" if cxx_compiler else "",
+        f"-DDPCTL_ENABLE_L0_PROGRAM_CREATION={'ON' if level_zero else 'OFF'}",
+        f"-DDPTL_ENABLE_GLOG:BOOL={'ON' if glog else 'OFF'}",
+    ]
+
+    if verbose:
+        args.append("-DCMAKE_VERBOSE_MAKEFILE:BOOL=ON")
+    if other_opts:
+        args.extend(other_opts.split())
+
+    return args
+
+
+def build_extension(
+    setup_dir: str,
+    env: dict[str, str],
+    cmake_args: list[str],
+    cmake_executable: str = None,
+    generator: str = None,
+    build_type: str = None,
+):
+    cmd = [sys.executable, "setup.py", "build_ext", "--inplace"]
+    if cmake_executable:
+        cmd.append(f"--cmake-executable={cmake_executable}")
+    if generator:
+        cmd.append(f"--generator={generator}")
+    if build_type:
+        cmd.append(f"--build-type={build_type}")
+    if cmake_args:
+        cmd.append("--")
+        cmd += cmake_args
+    run(
+        cmd,
+        env=env,
+        cwd=setup_dir,
+    )
+
+
+def install_editable(setup_dir: str, env: dict[str, str]):
+    run(
+        [
+            sys.executable,
+            "-m",
+            "pip",
+            "install",
+            "-e",
+            ".",
+            "--no-build-isolation",
+        ],
+        env=env,
+        cwd=setup_dir,
+    )
+
+
+def clean_build_dir(setup_dir: str = None):
+    target = os.path.join(setup_dir or os.getcwd(), "_skbuild")
+    if os.path.exists(target):
+        print(f"Cleaning build directory: {target}")
+        shutil.rmtree(target)