Add CLI

src/main.rs

@@ -1,4 +1,5 @@
 extern crate anyhow;
+extern crate clap;
 
 pub mod price_result;
 pub mod parser;
@@ -7,13 +8,33 @@ pub mod price_checker;
 use price_result::PriceResult;
 use price_checker::PriceChecker;
 use url::Url;
-use anyhow::{Context, Result};
+use anyhow::Result;
+use clap::{Arg, App, SubCommand};
 
 fn main() -> Result<()> {
-	let price_checker = PriceChecker::new().context("Cannot create price checker")?;
-
-    let price_result = price_checker.get_price(Url::parse("https://www.darty.com/nav/achat/gros_electromenager/refrigerateur-congelateur-refrigerateur-cong/refrigerateur-congelateur_bas/samsung_rb33n300nsa_ef.html")?)?;
-	println!("{}", price_result);
+	let matches = App::new("Price checker")
+                          .version("0.1")
+                          .author("Rémi BERTHO <remi.bertho@dalan.fr>")
+                          .about("Check price")
+                          .subcommand(SubCommand::with_name("check")
+                                      .about("Check from an URL")
+                                      .arg(Arg::with_name("URL")
+											  .required(true)
+											  .multiple(true)
+                                          .help("The URL to get price")))
+						  .get_matches();
+	match matches.subcommand() {
+		("check",  Some(check_matches)) => {
+			let price_checker = PriceChecker::new().unwrap();
+			for url_str in check_matches.values_of("URL").unwrap() {
+				let url = Url::parse(url_str)?;
+				println!("{}", price_checker.get_price(url)?) ;
+			}
+		},
+		_                       => {
+			println!("{}", matches.usage());
+		},
+	}
 	Ok(())
 }
 

src/price_checker.rs

@@ -28,10 +28,10 @@ impl PriceChecker {
 
 	/// Get a price from an URL
 	pub fn get_price(&self, url : Url) -> Result<PriceResult> {
+		let parser = *self.parser_list.get_price().iter().find(|p| p.can_parse(&url)).ok_or(anyhow!("No parser can parse {}", url))?;
 		let response = self.client.get(url.clone()).send()?;
 		let text = response.text()?;
 		let document = Html::parse_document(&text);
-		let parser = *self.parser_list.get_price().iter().find(|p| p.can_parse(&url)).ok_or(anyhow!("No parser can parse {}", url))?;
 		Ok(parser.parse(&document)?)
 	}
 }