Introduce FolderCoder and provide first implementation

[elifarley]

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This PR refactors the coder system in Aider to use a dynamic, folder-based mechanism for loading prompts. This replaces hardcoded prompt classes with flexible loading from resource directories, making it easier to configure, extend, and maintain different coder types without modifying core code.

Key Changes

• Introduces FolderCoder and AiderFolderCoder as base classes to dynamically load prompts from folders.
• Migrates AskCoder and ArchitectCoder to the new folder-based approach, and adds a new AskFurtherCoder implementation.
• Fixes a minor typo in base_coder.py ("confused" → "confuse") and corrects the usage of a classmethod decorator.
• Adds build automation scripts (Makefile and check-version.sh) for easier development workflows.
• Includes new folder-based prompt resources under aider/resources/folder-coders/ for built-in coders.

Detailed Changes: aider/coders/folder_coder.py

This new file defines two classes for loading prompts from directories, enabling modular prompt management.

FolderCoder

• Purpose: A base class extending Coder (the general class for AI-driven code generation tasks) to load prompts dynamically from a specified folder. • Key Features: • Accepts a prompt_folder_path (a Traversable like a filesystem path or package resource) and an optional edit_format. • Creates a subclass of CoderPrompts using _create_coder_prompts_subclass, which generates a named subclass (e.g., via PascalCase conversion of the coder name) and populates it with prompt content. • Uses load_class_attrs_from_folder to read .txt files from a subfolder (e.g., prompt_folder_path / coder_name), setting each file's content as a class attribute (filename without .txt extension). • Handles errors gracefully (e.g., missing folders or read failures) by returning silently.
• Integrates the new prompts subclass into the coder's initialization via self.gpt_prompts.

AiderFolderCoder

• Purpose: A specialized subclass of FolderCoder for loading Aider's built-in coder prompts from package resources.

• Key Features: • Overrides __init__ to set prompt_folder_path to files("aider.resources.folder-coders"), pointing to the bundled resource directory. • Enables seamless access to predefined prompts without external paths.

New edit format: ask-further

aider --model gemini-1.5-flash --edit-format ask-further aider/coders/folder_coder.py

Benefits and Summary

This refactor promotes extensibility: new coders can be added by simply creating a subfolder with .txt prompt files, reducing boilerplate and centralizing prompt management. No existing functionality is broken, and the system remains backward-compatible. The changes make Aider more maintainable for future coder variants, such as specialized models or custom behaviors.

Note: this is not related to the FolderCode language

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[shinely05]

1232就斤斤计较

[bitnom]

This is super useful

[bitnom]

If it's not too much trouble, would you mind merging the latest master to your branch?

[bitnom]

@elifarley

I have synced/merged your feat/folder-coder and cedarscript branches with the latest main branch:

https://github.com/bitnom/aider/tree/cedarscript (I'm not sure exactly the purpose of this) https://github.com/bitnom/aider/tree/feat/folder-coder

[elifarley]

@bitnom wanna get back to this?