Plugin: Remove node_has_member()

Now that we permit `key in somenode` again, remove the unnecessary extra
API of Plugin.node_has_member()

Signed-off-by: Daniel Silverstone <daniel.silverstone@codethink.co.uk>

4 files changed, 4 insertions, 25 deletions

diff --git a/buildstream/_gitsourcebase.py b/buildstream/_gitsourcebase.py
index 5777d4aed..7d07c56cb 100644
--- a/buildstream/_gitsourcebase.py
+++ b/buildstream/_gitsourcebase.py
@@ -423,7 +423,7 @@ class _GitSourceBase(Source):
                 self.mark_download_url(url, primary=False)
 
             self.submodule_overrides[path] = url
-            if self.node_has_member(submodule, 'checkout'):
+            if 'checkout' in submodule:
                 checkout = self.node_get_member(submodule, bool, 'checkout')
                 self.submodule_checkout_overrides[path] = checkout
 
diff --git a/buildstream/plugin.py b/buildstream/plugin.py
index 19d82769b..5fdcdaeb8 100644
--- a/buildstream/plugin.py
+++ b/buildstream/plugin.py
@@ -433,27 +433,6 @@ class Plugin():
         """
         _yaml.node_set(node, key, value)
 
-    def node_has_member(self, node, key):
-        """Essentially the `key in node` test
-        Args:
-           node (node): A dictionary loaded from YAML
-           key (str): The key name
-
-        Returns:
-           bool: Whether or not key is in node
-
-        Raises:
-           None
-
-        **Example:**
-
-        .. code:: python
-
-          # To see if `name` is set in `node
-          present = self.node_has_member(node, 'name')
-        """
-        return _yaml.node_contains(node, key)
-
     def new_empty_node(self):
         """Create an empty 'Node' object to be handled by BuildStream's core
         Args:
diff --git a/buildstream/plugins/elements/filter.py b/buildstream/plugins/elements/filter.py
index cbb4fe7af..940e820a0 100644
--- a/buildstream/plugins/elements/filter.py
+++ b/buildstream/plugins/elements/filter.py
@@ -220,11 +220,11 @@ class FilterElement(Element):
                 split_rules = self.node_get_member(pub_data, dict, 'split-rules', {})
                 unfound_includes = []
                 for domain in self.include:
-                    if not self.node_has_member(split_rules, domain):
+                    if domain not in split_rules:
                         unfound_includes.append(domain)
                 unfound_excludes = []
                 for domain in self.exclude:
-                    if not self.node_has_member(split_rules, domain):
+                    if domain not in split_rules:
                         unfound_excludes.append(domain)
 
                 detail = []
diff --git a/tests/frontend/project/sources/fetch_source.py b/tests/frontend/project/sources/fetch_source.py
index 6bcaca028..f17c14029 100644
--- a/tests/frontend/project/sources/fetch_source.py
+++ b/tests/frontend/project/sources/fetch_source.py
@@ -41,7 +41,7 @@ class FetchSource(Source):
         self.original_urls = self.node_get_member(node, list, 'urls')
         self.output_file = self.node_get_member(node, str, 'output-text')
         self.fetch_succeeds = {}
-        if self.node_has_member(node, 'fetch-succeeds'):
+        if 'fetch-succeeds' in node:
             fetch_succeeds_node = self.node_get_member(node, dict, 'fetch-succeeds')
             for key, value in self.node_items(fetch_succeeds_node):
                 self.fetch_succeeds[key] = value in ('True', 'true')