Function execute 

pub fn execute(
    cli: &Cli,
    path: Option<String>,
    threads: Option<usize>,
    debounce: Option<u64>,
    _show_stats: bool,
    build_if_missing: bool,
    classpath: bool,
    _no_classpath: bool,
    classpath_depth: ClasspathDepthArg,
    classpath_file: Option<PathBuf>,
    build_system: Option<String>,
    force_classpath: bool,
) -> Result<()>

Execute the watch command.

Errors

Returns an error if the index cannot be loaded or watch mode fails.