🧹 Remove Unused Includes Skill

This skill provides a workflow and script to look through a given folder, identify unused includes using clang-include-cleaner, and safely remove them only if the affected targets continue to compile successfully.

Prerequisites

Compilation Database (compile_commands.json): Ensure your compilation database is up-to-date. If not, generate a fresh compilation database using:
bash
```
python3 tools/clang/scripts/generate_compdb.py -p out/Default -o compile_commands.json
```

Workflow Steps

1. Run the Cleanup Script

Run the automated cleanup script located inside this skill's directory (resolve the absolute <skill_directory_path> from the skill metadata):

bash

python3 <skill_directory_path>/scripts/remove_unused_includes.py --src-root . --folder <relative_or_absolute_folder_path>

2. Verify Compilation

The script automatically:

Finds all .cc files in the specified folder.
Detects unused includes using clang-include-cleaner.
Locates all referencing GN targets for each modified file via gn refs.
Edits the file and compiles each referencing target.
Reverts the edit if any compilation errors occur.

3. Review Git Status

Once execution is complete, verify the final changes using git:

bash

git status
git diff