From 83dad1f4d692a5e1970d0df1ba688682f8bd2547 Mon Sep 17 00:00:00 2001
From: fdai7374 <jonas.gaertner1@informatik.hs-fulda.de>
Date: Sat, 28 Jan 2023 18:50:34 +0100
Subject: [PATCH] feat: add help command

---
 src/builtins/help.rs | 27 +++++++++++++++++++++++++++
 src/builtins/mod.rs  |  2 ++
 2 files changed, 29 insertions(+)
 create mode 100644 src/builtins/help.rs

diff --git a/src/builtins/help.rs b/src/builtins/help.rs
new file mode 100644
index 0000000..d78b5d5
--- /dev/null
+++ b/src/builtins/help.rs
@@ -0,0 +1,27 @@
+use crate::error::ShellError;
+use crate::builtins::{Builtin, BuiltinConfig};
+
+
+pub struct Help;
+
+impl Builtin for Help {
+
+    fn execute(&mut self, _: &mut BuiltinConfig, _: Vec<String>) -> Result<(), ShellError> {
+        let commands =
+           "cd              changes current working directory
+            change-prompt   changes prompt style (default, bashlike, simpledirectory)
+            exit            exits the shell
+            fetch           prints out system information
+            help            displays this command
+            ls              lists contents of directory
+            open            shows content of files
+            pwd             shows path to current working directory
+            segfault        exit but through segfault
+            sus             shows amogus";
+
+        for line in commands.lines(){
+            println!("{}",line.trim_start());
+        }
+        Ok(())
+    }
+}
\ No newline at end of file
diff --git a/src/builtins/mod.rs b/src/builtins/mod.rs
index 96913eb..51ccbe6 100644
--- a/src/builtins/mod.rs
+++ b/src/builtins/mod.rs
@@ -6,6 +6,7 @@ mod cd;
 mod change_prompt;
 mod exit;
 mod fetch;
+mod help;
 mod ls;
 mod open;
 mod pwd;
@@ -39,6 +40,7 @@ const BUILTINS: Lazy<Vec<(&str, Box<dyn Builtin>)>> = Lazy::new(|| {
         ("pwd", Box::new(pwd::Pwd)),
         ("segfault", Box::new(segfault::Segfault)),
         ("sus", Box::new(sus::Sus)),
+        ("help", Box::new(help::Help)),
     ]
 });