init

src/main.rs

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+extern crate wham;
+#[macro_use]
+extern crate clap;
+
+use clap::App;
+use wham::Config;
+use std::error::Error;
+use std::result::Result;
+use std::process;
+use std::env;
+
+// Parse command line arguments into a Config struct
+fn cli() -> Result<Config, Box<Error>> {
+	let yaml = load_yaml!("cli.yml");
+	let matches = App::from_yaml(yaml).get_matches();
+	let metadata_file = matches.value_of("metadata").unwrap().to_string();
+	let hist_min: f32 = matches.value_of("min_hist").unwrap().parse()?;
+	let hist_max: f32 = matches.value_of("max_hist").unwrap().parse()?;
+	let num_bins: usize = matches.value_of("bins").unwrap().parse()?;
+	let verbose: bool = matches.is_present("verbose");
+	let temperature: f32 = matches.value_of("temperature").unwrap().parse()?;
+
+	let tolerance: f32;
+	if matches.is_present("tolerance") {
+		tolerance = matches.value_of("tolerance").unwrap().parse()?;
+	} else {
+		tolerance = std::f32::MIN_POSITIVE;
+	}
+	let max_iterations: usize;
+	if matches.is_present("iterations") {
+		max_iterations = matches.value_of("iterations").unwrap().parse()?;
+	} else {
+		max_iterations = std::usize::MAX;
+	}
+	Ok(wham::Config{metadata_file, hist_min, hist_max, num_bins,
+		verbose, tolerance, max_iterations, temperature})
+}
+
+fn main() {
+	let cfg = cli().expect("Failed to parse CLI.");
+	match wham::run(&cfg) {
+		Err(_) => process::exit(1),
+		_ => {}
+	}
+}