Added help()

src/config.rs

@@ -23,13 +23,6 @@ impl Config {
             Management::CompleteClear => (pac.complete_cache_clear.0, pac.complete_cache_clear.1),
         };
 
-        /*
-        let term = match self.term {
-            None => "",
-            Some(ref val) => val,
-        };
-        */
-
         match (&prog.1, &self.term) {
             (&None, &None) => {
                 Command::new(&prog.0).spawn().expect(
@@ -52,17 +45,6 @@ impl Config {
                 std::process::exit(1)
             }
         }
-
-        /*
-        if prog.1.is_none() && self.term.is_none() {
-        }else{
-            Command::new(&prog.0)
-                .arg(&prog.1)
-                .arg(term)
-                .spawn()
-                .expect("Failed to call package manager")
-        }
-        */
     }
     /// Creates a `Config` from passed arguments, parses the `Management` enum
     /// and term (if any). Requires an action, while the term can be `None`.
@@ -70,6 +52,7 @@ impl Config {
         let action = match Management::parse(std::env::args().nth(1)) {
             None => {
                 println!("No command actions passed");
+                help();
                 std::process::exit(0)
             }
             Some(command) => command,

src/main.rs

@@ -74,3 +74,18 @@ fn main() {
         std::process::exit(0);
     }
 }
+
+fn help() {
+    println!(
+        "COMMANDS: 
+            -S    Installs a new package
+            -Ss   Searches for a package
+            -Sy   Updates local cache from repo
+            -Su   Upgrades with just your local cache
+            -Syu  Upgrades the local cache and then updates the system
+            -R    Removes a package from the system
+            -Rdns Purges a package from the system
+            -Sc   Clears your local cache
+            -Scc  Purges your local cache"
+    );
+}

src/management.rs

@@ -1,3 +1,5 @@
+use super::*;
+
 #[allow(dead_code)]
 #[derive(Debug)]
 /// enum for passing data around the program. Contains each option
@@ -19,7 +21,14 @@ impl Management {
     /// Setup here to use the same commands `pacman` does though it's no
     /// where near as robust. This is very basic and may be improved later
     pub fn parse(man: Option<String>) -> Option<Management> {
-        match &*man.expect("No commands were passed") {
+        let man = match man {
+            None => {
+                help();
+                std::process::exit(0);
+            }
+            Some(val) => val,
+        };
+        match &*man {
             "-Ss" => Some(Management::Search),
             "-S" => Some(Management::Install),
             "-R" => Some(Management::Uninstall),
@@ -29,6 +38,10 @@ impl Management {
             "-Syu" => Some(Management::Full),
             "-Sc" => Some(Management::Clear),
             "-Scc" => Some(Management::CompleteClear),
+            "-h" | "--help" | "help" => {
+                help();
+                std::process::exit(0)
+            }
             _ => None,
 
         }