_project: remove 'key' argument from 'get_path_from_node'

Now that we have scalar nodes, we can directly give the scalar to the
method.

- Adapt the plugin method to also not access via the key

1 files changed, 3 insertions, 4 deletions

diff --git a/src/buildstream/plugin.py b/src/buildstream/plugin.py
index cee24ea1f..2e5cc9678 100644
--- a/src/buildstream/plugin.py
+++ b/src/buildstream/plugin.py
@@ -363,7 +363,7 @@ class Plugin():
         provenance = _yaml.node_get_provenance(node, key=member_name)
         return str(provenance)
 
-    def node_get_project_path(self, node, key, *,
+    def node_get_project_path(self, node, *,
                               check_is_file=False, check_is_dir=False):
         """Fetches a project path from a dictionary node and validates it
 
@@ -377,8 +377,7 @@ class Plugin():
         ``True``.
 
         Args:
-           node (dict): A dictionary loaded from YAML
-           key (str): The key whose value contains a path to validate
+           node (ScalarNode): A Node loaded from YAML containing the path to validate
            check_is_file (bool): If ``True`` an error will also be raised
                                  if path does not point to a regular file.
                                  Defaults to ``False``
@@ -403,7 +402,7 @@ class Plugin():
 
         """
 
-        return self.__project.get_path_from_node(node, key,
+        return self.__project.get_path_from_node(node,
                                                  check_is_file=check_is_file,
                                                  check_is_dir=check_is_dir)