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//! This example collects all given arguments, interprets them as paths, gathers information
//! about them and checks if stdout is being redirected to one of the given files.
//! If that's the case, the return code will be set to 1. In both cases, there is an according
//! output to stderr.
use clircle::{stdout_among_inputs, Identifier};
use std::convert::TryFrom;
use std::fs::File;
fn main() {
let inputs: Vec<_> = std::env::args().collect();
let inputs: Result<Vec<Identifier>, _> = inputs
.iter()
.map(File::open)
.map(Result::unwrap)
.map(Identifier::try_from)
.collect();
let inputs = inputs.expect("There was an argument that could not be converted to an Idenfier!");
if stdout_among_inputs(&inputs) {
eprintln!("Cycle detected!");
std::process::exit(1);
} else {
eprintln!("No cycle detected.")
}
}
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