make pnpm install work on zfs

(without that option it randomly fails sometimes)

Author: williamstein

src/workspaces.py

@@ -260,7 +260,8 @@ def install(args) -> None:
         print("install packages")
         # much faster special case
         # see https://github.com/pnpm/pnpm/issues/6778 for why we put that confirm option in
-        c = "cd packages && pnpm install --config.confirmModulesPurge=false"
+        # for the package-import-method, needed on zfs!, see https://github.com/pnpm/pnpm/issues/7024
+        c = "cd packages && pnpm install --config.confirmModulesPurge=false --package-import-method=clone-or-copy"
         if args.prod:
             args.dist_only = False
             args.node_modules_only = True