Add default rustfmt to project root

Author: ishai1

rustic-rustfmt.el

@@ -464,6 +464,52 @@ Otherwise turn off rustic format functionality and run `save-some-buffers'."
 (advice-add 'save-some-buffers :around
             #'rustic-save-some-buffers-advice)
 
+(defun rustic-generate-project-rustfmt-toml ()
+  "Generate a default `rustfmt.toml' file in the project root."
+  (let* ((root (rustic-buffer-crate t))
+         (file (expand-file-name "rustfmt.toml" root)))
+    (unless (file-exists-p file)
+      (with-temp-file file
+        (insert "edition = \"2024\"\n")
+        (insert "max_width = 100\n")
+        (insert "use_small_heuristics = \"Default\"\n")
+        (insert "newline_style = \"Unix\"\n")
+        (insert "format_code_in_doc_comments = true\n")
+        (insert "format_strings = true\n")
+        (insert "format_macro_matchers = true\n")
+        (insert "format_macro_expansion = true\n")
+        (insert "format_generics = true\n")
+        (insert "format_trait_impls = true\n")
+        (insert "format_impls = true\n")
+        (insert "format_structs = true\n")
+        (insert "format_enums = true\n")
+        (insert "format_items_in_match = true\n")
+        (insert "format_match_arms = true\n")
+        (insert "format_function_calls = true\n")
+        (insert "format_method_calls = true\n")
+        (insert "format_braces = true\n")
+        (insert "format_single_line_if = true\n")
+        (insert "format_single_line_match = true\n")
+        (insert "format_else_if = true\n")
+        (insert "format_trailing_comma = true\n")
+        (insert "format_match_block = true\n")
+        (insert "format_match_pattern = true\n")
+        (insert "format_struct_lit = true\n")
+        (insert "format_array_lit = true\n")
+        (insert "format_chain = true\n")
+        (insert "format_imports = true\n")
+        (insert "format_merge_imports = true\n")
+        (insert "format_use_toplevel = true\n")
+        (insert "format_empty_block = true\n")
+        (insert "format_empty_struct = true\n")
+        (insert "format_empty_enum = true\n")
+        (insert "format_empty_impl = true\n")
+        (insert "format_empty_trait = true\n")
+        (insert "format_empty_fn = true\n")
+        (insert "format_trait_bounds = true\n")
+        (insert "format_type_args = true\n")
+        ))))
+
 ;;; _
 (provide 'rustic-rustfmt)
 ;;; rustic-rustfmt.el ends here