Added graph functions

cli/generate/tree.py

@@ -0,0 +1,61 @@
+#!/usr/bin/env python3
+import os
+import argparse
+import yaml
+import json
+
+from cli.generate.graph import build_graphs, output_graph
+
+def find_roles(roles_dir: str):
+    """Yield (role_name, role_path) for every subfolder in roles_dir."""
+    for entry in os.listdir(roles_dir):
+        path = os.path.join(roles_dir, entry)
+        if os.path.isdir(path):
+            yield entry, path
+
+def main():
+    # default roles dir is ../../roles relative to this script
+    script_dir = os.path.dirname(os.path.abspath(__file__))
+    default_roles_dir = os.path.abspath(os.path.join(script_dir, '..', '..', 'roles'))
+
+    parser = argparse.ArgumentParser(
+        description="Generate a tree.json for each role, containing both run_after and dependencies"
+    )
+    parser.add_argument(
+        '-d','--role_dir',
+        default=default_roles_dir,
+        help=f"Path to roles directory (default: {default_roles_dir})"
+    )
+    parser.add_argument(
+        '-p','--preview',
+        action='store_true',
+        help="Preview all graphs on console instead of writing files"
+    )
+    args = parser.parse_args()
+
+    for role_name, role_path in find_roles(args.role_dir):
+        # Build both graphs at once
+        graph_data = build_graphs(
+            start_role=role_name,
+            types=['run_after','dependencies'],
+            roles_dir=args.role_dir
+        )
+
+        if args.preview:
+            # pretty-print via output_graph as YAML to console
+            output_graph(
+                graph_data,
+                fmt='console',
+                start=role_name,
+                types=['run_after','dependencies']
+            )
+        else:
+            # write raw JSON into roles/<role>/meta/tree.json
+            tree_file = os.path.join(role_path, 'meta', 'tree.json')
+            os.makedirs(os.path.dirname(tree_file), exist_ok=True)
+            with open(tree_file, 'w') as f:
+                json.dump(graph_data, f, indent=2)
+            print(f"Wrote {tree_file}")
+
+if __name__ == '__main__':
+    main()