simplify setup again

setup.py

@@ -1,96 +1,12 @@
-import glob
 import os
 from ctypes import util
-from itertools import product
 
 from Cython.Build import cythonize
 from setuptools import setup
 from setuptools.extension import Extension
 
-print("PATH:", os.environ["PATH"])
-print("CONDA_PREFIX:", os.environ.get("CONDA_PREFIX"))
-
-
-def debug_conda_env() -> None:
-    conda_prefix = os.environ.get("CONDA_PREFIX")
-    if not conda_prefix:
-        raise RuntimeError("No active Conda environment found. Ensure Conda is active.")
-    print()
-    # Check Gurobi DLL directory
-    if os.name == "nt":
-        bin_dir = os.path.join(conda_prefix, "Library", "bin")
-    else:
-        bin_dir = os.path.join(conda_prefix, "lib")
-    print(f"Inspecting bin directory: {bin_dir}")
-    if os.path.exists(bin_dir):
-        for file in glob.glob(os.path.join(bin_dir, "*gurobi*")):
-            print(f"  Found: {file}")
-        for file in glob.glob(os.path.join(bin_dir, "*scip*")):
-            print(f"  Found: {file}")
-        # print the whole damn directory
-        for file in glob.glob(os.path.join(bin_dir, "*")):
-            print(f"  Found: {file}")
-    else:
-        print("Gurobi bin directory does not exist!")
-
-    print()
-    # Check SCIP include directory
-    if os.name == "nt":
-        inc_dir = os.path.join(conda_prefix, "Library", "include", "scip")
-    else:
-        inc_dir = os.path.join(conda_prefix, "include", "scip")
-    print(f"Inspecting include directory: {inc_dir}")
-    if os.path.exists(inc_dir):
-        for file in glob.glob(os.path.join(inc_dir, "*")):
-            print(f"  Found: {file}")
-    else:
-        print("SCIP include directory does not exist!")
-        # print parent directory
-        print(f"  Parent directory: {os.path.dirname(inc_dir)}")
-        for file in glob.glob(os.path.join(os.path.dirname(inc_dir), "*")):
-            print(f"  Found: {file}")
-    print()
-
-
-def assert_gurobi_and_scip() -> None:
-    # Get the Conda environment prefix
-    conda_prefix = os.environ.get("CONDA_PREFIX")
-    if not conda_prefix:
-        raise RuntimeError("CONDA_PREFIX is not set. Ensure Conda is active in CI.")
-
-    # Paths to check
-    gurobi_dll_path = os.path.join(conda_prefix, "Library", "bin", "gurobi*.dll")
-    scip_header_path = os.path.join(
-        conda_prefix, "Library", "include", "scip", "scipdefplugins.h"
-    )
-
-    # Verify Gurobi DLL
-    gurobi_found = any(os.path.exists(path) for path in glob.glob(gurobi_dll_path))
-    if not gurobi_found:
-        raise FileNotFoundError(
-            f"Gurobi DLL not found in {gurobi_dll_path}. Ensure Gurobi is installed."
-        )
-
-    # Verify SCIP header
-    if not os.path.exists(scip_header_path):
-        raise FileNotFoundError(
-            f"SCIP header 'scipdefplugins.h' not found in {scip_header_path}. "
-            "Ensure SCIP is installed."
-        )
-
-    print("All required files are present.")
-
-
-debug_conda_env()
-if os.name == "nt":
-    assert_gurobi_and_scip()
-
 # enable test coverage tracing if CYTHON_TRACE is set to a non-zero value
 CYTHON_TRACE = int(os.getenv("CYTHON_TRACE") in ("1", "True"))
-if not (CONDA_PREFIX := os.environ.get("CONDA_PREFIX")):
-    raise RuntimeError(
-        "No active Conda environment found. Activate an environment before running."
-    )
 
 libraries = ["libscip"] if os.name == "nt" else ["scip"]
 include_dirs = ["ilpy/impl"]
@@ -103,48 +19,24 @@ def assert_gurobi_and_scip() -> None:
 # include conda environment windows include/lib if it exists
 # this will be done automatically by conda build, but is useful if someone
 # tries to build this directly with pip install in a conda environment
-if os.name == "nt":
-    include = os.path.join(CONDA_PREFIX, "Library", "include")
-    include_dirs.append(include)
-    library_dirs.append(os.path.join(CONDA_PREFIX, "Library", "lib"))
-    if not os.path.exists(include):
-        print(
-            "WARNING: Conda include directory not found. "
-            "Ensure you have the Conda environment activated."
-        )
+if os.name == "nt" and "CONDA_PREFIX" in os.environ:
+    include_dirs.append(os.path.join(os.environ["CONDA_PREFIX"], "Library", "include"))
+    library_dirs.append(os.path.join(os.environ["CONDA_PREFIX"], "Library", "lib"))
 
 # look for various gurobi versions, which are annoyingly
 # suffixed with the version number, and wildcards don't work
 
-
-def find_conda_gurobi() -> "tuple[str, str] | tuple[None, None]":
-    # Construct the potential library paths
-    library_paths = [
-        os.path.join(str(CONDA_PREFIX), "Library", "bin"),  # Windows DLLs
-        os.path.join(str(CONDA_PREFIX), "lib"),  # macOS/Linux
-    ]
-
-    for lib_path in library_paths:
-        if os.path.exists(lib_path):
-            os.environ["PATH"] += os.pathsep + lib_path  # Dynamically add to PATH
-
-    # Search for Gurobi in the active Conda environment
-    for prefix in ("lib", ""):
-        gurobi_lib = f"{prefix}gurobi110"
-        if found := util.find_library(gurobi_lib):
-            return gurobi_lib, found
-
-    return (None, None)
-
-
-GUROBI_LIB, lib_path = find_conda_gurobi()
-if GUROBI_LIB is not None:
-    print(f"FOUND GUROBI library {GUROBI_LIB!r}: {lib_path}")
-    libraries.append(GUROBI_LIB)
-    compile_args.append("/DHAVE_GUROBI" if os.name == "nt" else "-DHAVE_GUROBI")
+for prefix in ("lib", ""):
+    gurobi_lib = f"{prefix}gurobi110"  # only using gurobi 11 at the moment
+    if found := util.find_library(gurobi_lib):
+        print("FOUND GUROBI library: ", found)
+        libraries.append(gurobi_lib)
+        compile_args.append("/DHAVE_GUROBI" if os.name == 'nt' else "-DHAVE_GUROBI")
+        break
 else:
     print("WARNING: GUROBI library not found")
 
+
 wrapper = Extension(
     "ilpy.wrapper",
     sources=["ilpy/wrapper.pyx"],