implemented 'create_hard_link' function in openpype lib

openpype/lib/__init__.py

@@ -58,6 +58,7 @@ from .anatomy import (
 from .config import get_datetime_data
 
 from .vendor_bin_utils import (
+    create_hard_link,
     get_vendor_bin_path,
     get_oiio_tools_path,
     get_ffmpeg_tool_path,
@@ -208,6 +209,7 @@ __all__ = [
     "get_paths_from_environ",
     "get_global_environments",
 
+    "create_hard_link",
     "get_vendor_bin_path",
     "get_oiio_tools_path",
     "get_ffmpeg_tool_path",

openpype/lib/path_tools.py

@@ -6,7 +6,6 @@ import logging
 import six
 
 from openpype.settings import get_project_settings
-from openpype.settings.lib import get_site_local_overrides
 
 from .anatomy import Anatomy
 from .profiles_filtering import filter_profiles

openpype/lib/vendor_bin_utils.py

@@ -8,6 +8,41 @@ import distutils
 log = logging.getLogger("FFmpeg utils")
 
 
+def create_hard_link(src_path, dst_path):
+    """Create hardlink of file.
+
+    Args:
+        src_path(str): Full path to a file which is used as source for
+            hardlink.
+        dst_path(str): Full path to a file where a link of source will be
+            added.
+    """
+    # Use `os.link` if is available
+    #   - should be for all platforms with newer python versions
+    if hasattr(os, "link"):
+        os.link(src_path, dst_path)
+        return
+
+    # Windows implementation of hardlinks
+    #   - used in Python 2
+    if platform.system().lower() == "windows":
+        import ctypes
+        from ctypes.wintypes import BOOL
+        CreateHardLink = ctypes.windll.kernel32.CreateHardLinkW
+        CreateHardLink.argtypes = [
+            ctypes.c_wchar_p, ctypes.c_wchar_p, ctypes.c_void_p
+        ]
+        CreateHardLink.restype = BOOL
+
+        res = CreateHardLink(dst_path, src_path, None)
+        if res == 0:
+            raise ctypes.WinError()
+    # Raises not implemented error if gets here
+    raise NotImplementedError(
+        "Implementation of hardlink for current environment is missing."
+    )
+
+
 def get_vendor_bin_path(bin_app):
     """Path to OpenPype vendorized binaries.