flowstdlib 0.34.11

use std::path::Path;

use simpath::Simpath;

pub fn check_flow_lib_path() {
    let parent = Path::new(env!("CARGO_MANIFEST_DIR"))
        .parent()
        .unwrap()
        .display()
        .to_string();
    match std::env::var("FLOW_LIB_PATH") {
        Err(_) => {
            println!("'FLOW_LIB_PATH' is not set. \n\
                        For this 'flowstdlib' to be found by 'flowc' or 'flowr' the '-L {}' option must be used", parent);
        }
        Ok(value) => {
            let lib_path = Simpath::new_with_separator("FLOW_LIB_PATH", ',');
            if !lib_path.contains(&parent) {
                println!("'FLOW_LIB_PATH' is set to '{}'. But it does not contain the parent directory of this 'flowstdlib' directory.\n\
                            For flowc or flowr to find this 'flowstdlib' the '-L {}' option must be used.",
                         value, parent);
            } else {
                println!("'FLOW_LIB_PATH' is set to '{}' and contains the parent directory of this 'flowstdlib' directory.\n\
                            This 'flowstdlib' should be found correctly by 'flowc' and 'flowr'",
                         value
                );
            }
        }
    }
}