graphql-id 0.1.2

Generate an id for a GraphQL Query
Documentation 
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extern crate clap;
extern crate graphql_id;

use clap::{App, Arg};
use graphql_id::*;
use std::fs::File;
use std::io::prelude::Read;

fn main() {
    let matches = App::new("graphql-id")
        .version("0.1.2")
        .about("generate graphql id")
        .arg(
            Arg::with_name("FILE")
                .help("file to select")
                .required(true)
                .index(1),
        )
        .arg(
            Arg::with_name("OPERATION_NAME")
                .help("operation name")
                .required(false)
                .index(2),
        )
        .get_matches();

    let file = matches.value_of("FILE").unwrap();

    let mut f = File::open(file).expect(format!("File NOT FOUND: {}", file).as_str());
    let mut contents = String::new();
    f.read_to_string(&mut contents)
        .expect(format!("Error reading file: {}", file).as_str());

    let id = match matches.value_of("OPERATION_NAME") {
        Some(operation_name) => generate_operation_id(&contents.to_string(), operation_name),
        None => generate_default_operation_id(&contents.to_string()),
    };

    println!("{}", id.unwrap());
}