Function update_global_config

crates/opencode-config/src/loader.rs:1362–1393

Update global config by merging a patch.

(patch: &Config)

/// Update global config by merging a patch.
pub fn update_global_config(patch: &Config) -> Result<()> {
    let global_path = get_global_config_path();

    // Try to find existing global config file
    let config_path = ["jsonc", "json"]
        .iter()
        .map(|ext| global_path.with_extension(ext))
        .find(|p| p.exists())
        .unwrap_or_else(|| global_path.with_extension("json"));

    // Ensure parent directory exists
    if let Some(parent) = config_path.parent() {
        fs::create_dir_all(parent)?;
    }

    let existing = if config_path.exists() {
        let content = fs::read_to_string(&config_path)?;
        parse_jsonc(&content).unwrap_or_default()
    } else {
        Config::default()
    };

    let mut merged = existing;
    merged.merge(patch.clone());

    let json =
        serde_json::to_string_pretty(&merged).with_context(|| "Failed to serialize config")?;
    fs::write(&config_path, json)
        .with_context(|| format!("Failed to write global config to {:?}", config_path))?;

    Ok(())
}

#[cfg(test)]
mod tests {