infra: Add distribution files for macOS (#3934)

This upstream macOS packing and distribution files

distribution/macos/construct_universal_dylib.py

@@ -0,0 +1,95 @@
+import argparse
+import os
+from pathlib import Path
+import platform
+import shutil
+import subprocess
+
+parser = argparse.ArgumentParser(
+    description="Construct Universal dylibs for nuget package"
+)
+parser.add_argument(
+    "arm64_input_directory", help="ARM64 Input directory containing dylibs"
+)
+parser.add_argument(
+    "x86_64_input_directory", help="x86_64 Input directory containing dylibs"
+)
+parser.add_argument("output_directory", help="Output directory")
+parser.add_argument("rglob", help="rglob")
+
+args = parser.parse_args()
+
+# Use Apple LLVM on Darwin, otherwise standard LLVM.
+if platform.system() == "Darwin":
+    LIPO = "lipo"
+else:
+    LIPO = shutil.which("llvm-lipo")
+
+    if LIPO is None:
+        for llvm_ver in [15, 14, 13]:
+            lipo_path = shutil.which(f"llvm-lipo-{llvm_ver}")
+            if lipo_path is not None:
+                LIPO = lipo_path
+                break
+
+if LIPO is None:
+    raise Exception("Cannot find a valid location for LLVM lipo!")
+
+arm64_input_directory: Path = Path(args.arm64_input_directory)
+x86_64_input_directory: Path = Path(args.x86_64_input_directory)
+output_directory: Path = Path(args.output_directory)
+rglob = args.rglob
+
+
+def get_new_name(
+    input_directory: Path, output_directory: str, input_dylib_path: Path
+) -> Path:
+    input_component = str(input_dylib_path).replace(str(input_directory), "")[1:]
+    return Path(os.path.join(output_directory, input_component))
+
+
+def is_fat_file(dylib_path: Path) -> str:
+    res = subprocess.check_output([LIPO, "-info", str(dylib_path.absolute())]).decode(
+        "utf-8"
+    )
+
+    return not res.split("\n")[0].startswith("Non-fat file")
+
+
+def construct_universal_dylib(
+    arm64_input_dylib_path: Path, x86_64_input_dylib_path: Path, output_dylib_path: Path
+):
+    if output_dylib_path.exists() or output_dylib_path.is_symlink():
+        os.remove(output_dylib_path)
+
+    os.makedirs(output_dylib_path.parent, exist_ok=True)
+
+    if arm64_input_dylib_path.is_symlink():
+        os.symlink(
+            os.path.basename(arm64_input_dylib_path.resolve()), output_dylib_path
+        )
+    else:
+        if is_fat_file(arm64_input_dylib_path) or not x86_64_input_dylib_path.exists():
+            with open(output_dylib_path, "wb") as dst:
+                with open(arm64_input_dylib_path, "rb") as src:
+                    dst.write(src.read())
+        else:
+            subprocess.check_call(
+                [
+                    LIPO,
+                    str(arm64_input_dylib_path.absolute()),
+                    str(x86_64_input_dylib_path.absolute()),
+                    "-output",
+                    str(output_dylib_path.absolute()),
+                    "-create",
+                ]
+            )
+
+
+print(rglob)
+for path in arm64_input_directory.rglob("**/*.dylib"):
+    construct_universal_dylib(
+        path,
+        get_new_name(arm64_input_directory, x86_64_input_directory, path),
+        get_new_name(arm64_input_directory, output_directory, path),
+    )