INNER CODE UNIT · Rust

read_file

graphql-rust/graphql-client · graphql_client_codegen/src/lib.rs:199

fn read_file(path: &std::path::Path) -> Result<String, ReadFileError> {
    use std::fs;
    use std::io::prelude::*;

    let mut out = String::new();
    let mut file = fs::File::open(path).map_err(|io_error| ReadFileError::FileNotFound {
        io_error,
        path: path.display().to_string(),
    })?;

    file.read_to_string(&mut out)
        .map_err(|io_error| ReadFileError::ReadError {
            io_error,
            path: path.display().to_string(),
        })?;
    Ok(out)
}

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