Merge pull request #36 from thomasdorch/fix_windows_install

fixed 'required privilege' error (1314) on windows

install_tech.py

@@ -3,6 +3,7 @@
 import os
 import pathlib
 import sys
+import subprocess
 
 klayout_folder = "KLayout" if sys.platform == "win32" else ".klayout"
 cwd = pathlib.Path(__file__).resolve().parent
@@ -13,17 +14,32 @@
 dest = dest_folder / "ubcpdk"
 
 
+def make_link(src, dest):
+    try:
+        os.symlink(src, dest)
+    except OSError as err:
+        print("Could not create symlink!")
+        print("     Error: ", err)
+        if sys.platform == "win32":
+            # https://stackoverflow.com/questions/32877260/privlege-error-trying-to-create-symlink-using-python-on-windows-10
+            print("Trying to create a junction instead of a symlink...")
+            proc = subprocess.check_call(f"mklink /J {dest} {src}", shell=True)
+            if proc != 0:
+                print("Could not create link!")
+
+
 def install_tech(src, dest):
     """Installs tech."""
     if dest.exists():
         print(f"tech already installed in {dest}")
         return
 
     try:
-        os.symlink(src, dest)
+        make_link(src, dest)
     except Exception:
         os.remove(dest)
-        os.symlink(src, dest)
+        make_link(src, dest)
+
     print(f"layermap installed to {dest}")
 
 
@@ -36,11 +52,12 @@ def install_drc(src, dest):
     dest_folder = dest.parent
     dest_folder.mkdir(exist_ok=True, parents=True)
     try:
-        os.symlink(src, dest)
+        make_link(src, dest)
     except Exception:
         os.remove(dest)
-        os.symlink(src, dest)
-    print(f"layermap installed to {dest}")
+        make_link(src, dest)
+
+    print(f"drc installed to {dest}")
 
 
 if __name__ == "__main__":