Improve symlink handling

Author: frthjf

docs/examples/slurm-execution/slurm.py

@@ -144,15 +144,17 @@ def __call__(self):
                     elif self.config.resume_failed == "skip":
                         continue
                     else:
-                        raise ExecutionFailed(
-                            f"{executable.module} <{executable.id})> has previously been executed unsuccessfully. Set `resume_failed` to True, 'new' or 'skip' to handle resubmission."
-                        )
+                        err = f"{executable.module} <{executable.id})> has previously been executed unsuccessfully. Set `resume_failed` to True, 'new' or 'skip' to handle resubmission."
+                        if self.config.dry:
+                            print(err)
+                        else:
+                            raise ExecutionFailed(err)
 
             source_code = Project.get().path()
             if self.config.copy_project_source and not self.config.dry:
                 print("Copy project source code ...")
                 source_code = self.local_directory(executable.id, "source_code")
-                cmd = ["rsync", "-a", Project.get().path(""), source_code]
+                cmd = ["rsync", "-rLptgoD", Project.get().path(""), source_code]
                 print(" ".join(cmd))
                 run_and_stream(cmd, check=True)
 

src/machinable/project.py

@@ -374,7 +374,9 @@ def resolve_remotes(self, module: str) -> Optional[Element]:
                 # copy
                 shutil.copy(remote[5:], filename)
             else:
-                raise ValueError(f"Unknown remote type for {module}: {remote}")
+                raise ValueError(
+                    f"Unknown remote type for {module}: {remote} (target file is {filename}"
+                )
 
         try:
             element_class = find_subclass_in_module(