Clean up lib

src/config.rs

@@ -13,7 +13,7 @@ pub struct Config {
     pub repositories: Vec<Repository>,
 }
 
-#[derive(Debug, Serialize, Deserialize)]
+#[derive(Debug, Eq, PartialEq, Serialize, Deserialize)]
 /// The internal representation of a single repository
 pub struct Repository {
     name: String,

src/lib.rs

@@ -1,7 +1,7 @@
 pub mod config;
 use config::{Config, Repository};
-use std::error::Error;
 use std::env;
+use std::error::Error;
 
 #[derive(Debug)]
 /// Holds the current state of the application.
@@ -19,6 +19,7 @@ pub struct State {
 enum Cmd {
     Add,
     Help,
+    Fetch,
     DumpConfig,
 }
 
@@ -80,10 +81,19 @@ impl State {
                         _ => {}
                     },
                     None => {
-                        eprintln!("No URL provided for \'number\' command\n");
+                        eprintln!("No URL provided for command\n");
                     }
                 }
             }
+            // fetch command
+            else if x == "fetch" {
+                match state.cmd {
+                    None => {
+                        state.cmd = Some(Cmd::Fetch);
+                    }
+                    _ => {}
+                }
+            }
             arg = args.next();
         }
 
@@ -106,11 +116,17 @@ pub fn run(state: State, mut config: Config) -> Result<(), Box<dyn Error>> {
             println!("{}", config.to_string().unwrap());
         }
         Some(Cmd::Add) => {
-            config.repositories.push(Repository::new(match state.url {
+            let repo = Repository::new(match state.url {
                 Some(x) => x,
                 None => String::new(),
-            }));
+            });
+            if let None = config.repositories.iter().find(|x| **x == repo) {
+                config.repositories.push(repo);
                 config.save_config()?;
+                println!("Repository has been added");
+            } else {
+                println!("Repository is already being tracked");
+            }
         }
         Some(x) => {
             println!("{:?} hasn't been implemented yet!", x)
@@ -137,7 +153,7 @@ General
     help    Print out this help message
 
 Manage Repositories
-    clone   Add another git repo to keep track of
+    add     Add another git repo to keep track of
     fetch   Update currently tracked repos"
     )
 }