Lazy CMakePreset Writing

Author: Behemyth

cppython/plugins/cmake/builder.py

@@ -8,6 +8,9 @@
 class Builder:
     """Aids in building the information needed for the CMake plugin"""
 
+    def __init__(self) -> None:
+        """Initialize the builder"""
+
     @staticmethod
     def write_provider_preset(provider_directory: Path, provider_data: CMakeSyncData) -> None:
         """Writes a provider preset from input sync data
@@ -104,7 +107,11 @@ def write_root_presets(preset_file: Path, cppython_preset_file: Path) -> None:
             initial_root_preset = CMakePresets.model_validate_json(initial_json)
             root_preset = initial_root_preset.model_copy(deep=True)
         else:
-            root_preset = CMakePresets()
+            # If the file doesn't exist, we need to default it for the user
+
+            # Forward the tool's build directory
+            default_configure_preset = ConfigurePreset(name='default', inherits='cppython', binaryDir='build')
+            root_preset = CMakePresets(configurePresets=[default_configure_preset])
 
         # Get the relative path to the cppython preset file
         preset_directory = preset_file.parent.absolute()

cppython/plugins/cmake/resolution.py

@@ -3,7 +3,7 @@
 from typing import Any
 
 from cppython.core.schema import CorePluginData
-from cppython.plugins.cmake.schema import CMakeConfiguration, CMakeData, CMakePresets
+from cppython.plugins.cmake.schema import CMakeConfiguration, CMakeData
 
 
 def resolve_cmake_data(data: dict[str, Any], core_data: CorePluginData) -> CMakeData:
@@ -24,12 +24,4 @@ def resolve_cmake_data(data: dict[str, Any], core_data: CorePluginData) -> CMake
     if not modified_preset_dir.is_absolute():
         modified_preset_dir = root_directory / modified_preset_dir
 
-    # If the user hasn't specified a preset file, we need to create one
-    if not modified_preset_dir.exists():
-        modified_preset_dir.parent.mkdir(parents=True, exist_ok=True)
-        presets_string = CMakePresets().model_dump_json(exclude_none=True, indent=4)
-
-        with modified_preset_dir.open('w', encoding='utf-8') as file:
-            file.write(presets_string)
-
     return CMakeData(preset_file=modified_preset_dir, configuration_name=parsed_data.configuration_name)

cppython/plugins/cmake/schema.py

@@ -76,7 +76,7 @@ class CMakeSyncData(SyncData):
 class CMakeData(CPPythonModel):
     """Resolved CMake data"""
 
-    preset_file: FilePath
+    preset_file: Path
     configuration_name: str