Function new_dlc_command

perro_source/devtools/perro_cli/src/scaffold.rs:287–346

(args: &[String], cwd: &Path)

}

pub(crate) fn new_dlc_command(args: &[String], cwd: &Path) -> Result<(), String> {
    let Some(raw_name) = parse_flag_value(args, "--name") else {
        return Err("missing required flag `--name`".to_string());
    };
    let dlc_name = validate_dlc_name(&raw_name)?;

    let project_dir = if let Some(raw_project) = parse_flag_value(args, "--path") {
        resolve_local_path(&raw_project, cwd)
    } else {
        find_project_root(cwd).ok_or_else(|| {
            "could not find project.toml. Run from a project directory or pass --path <project_dir>."
                .to_string()
        })?
    };
    let project_dir = project_dir.canonicalize().unwrap_or(project_dir);
    if !project_dir.join("project.toml").exists() {
        return Err(format!(
            "invalid --path `{}` for new_dlc. Use project root (directory containing project.toml).",
            project_dir.display()
        ));
    }

    let dlc_root = project_dir.join("dlcs").join(&dlc_name);
    if dlc_root.exists() {
        return Err(format!("dlc already exists: {}", dlc_root.display()));
    }

    fs::create_dir_all(dlc_root.join("scenes"))
        .map_err(|err| format!("failed to create dlc scenes dir: {err}"))?;
    fs::create_dir_all(dlc_root.join("scripts"))
        .map_err(|err| format!("failed to create dlc scripts dir: {err}"))?;
    fs::create_dir_all(dlc_root.join("materials"))
        .map_err(|err| format!("failed to create dlc materials dir: {err}"))?;
    fs::create_dir_all(dlc_root.join("meshes"))
        .map_err(|err| format!("failed to create dlc meshes dir: {err}"))?;

    let script_path = dlc_root.join("scripts").join("script.rs");
    write_new_file(&script_path, &default_script_empty_rs())?;

    let scene_path = dlc_root.join("scenes").join("main.scn");
    let scene = format!(
        "$root = @main\n\n[main]\nscript = \"dlc://{dlc_name}/scripts/script.rs\"\n[Node2D]\n    position = (0, 0)\n[/Node2D]\n[/main]\n"
    );
    write_new_file(&scene_path, &scene)?;
    update_workspace_vscode_linked_projects(&workspace_root(), &project_dir)?;
    update_project_vscode_linked_projects(&project_dir)?;

    println!(
        "created dlc `{}` at {}",
        dlc_name,
        normalize_powershell_path(&dlc_root)
    );
    println!("reference scene with: dlc://{}/scenes/main.scn", dlc_name);
    println!(
        "reference script with: dlc://{}/scripts/script.rs",
        dlc_name
    );
    maybe_open_file_in_editor(args, &scene_path)?;