fn parse_file_name()

in crates/core/src/file_group/base_file.rs [54:78]

• 25 lines of code
• 5 McCabe index (conditional complexity)

    fn parse_file_name(file_name: &str) -> Result<(String, String, String, String)> {
        let err_msg = format!("Failed to parse file name '{file_name}' for base file.");
        let (stem, extension) = file_name
            .rsplit_once('.')
            .ok_or_else(|| CoreError::FileGroup(err_msg.clone()))?;
        let parts: Vec<&str> = stem.split('_').collect();
        let file_id = parts
            .first()
            .ok_or_else(|| CoreError::FileGroup(err_msg.clone()))?
            .to_string();
        let write_token = parts
            .get(1)
            .ok_or_else(|| CoreError::FileGroup(err_msg.clone()))?
            .to_string();
        let commit_timestamp = parts
            .get(2)
            .ok_or_else(|| CoreError::FileGroup(err_msg.clone()))?
            .to_string();
        Ok((
            file_id,
            write_token,
            commit_timestamp,
            extension.to_string(),
        ))
    }