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use std::fs;
use std::error::Error;
pub fn get_project_input_folder(project_code: &str, input_root_path: &str) -> Result<fs::DirEntry, Box<dyn Error>> {
let find_input_dir = | dir: &fs::DirEntry | {
let dir_name = dir.file_name();
let dir_name = match dir_name.to_str() {
Some(name) => name,
None => ""
};
if dir_name.contains(project_code) {true} else {false}
};
let root_dir = fs::read_dir(input_root_path)?;
let mut input_dir: Vec<fs::DirEntry> = root_dir.map(|x| {
match x {
Ok(val) => val,
Err(_) => panic!("no input directory found")
}
}).filter(find_input_dir).collect();
match input_dir.pop() {
Some(val) => Ok(val),
None => Err(Box::from("no value to pop")),
}
}