more sensible code

src/main.rs

@@ -2,15 +2,66 @@ use std::env::current_dir as current_dir;
 use std::env::var_os as var_os;
 use std::env::args as args;
 use colored::Colorize;
+use std::path::PathBuf;
+use std::ffi::OsString;
+
+fn get_shell_char (shell: String) -> String {
+    let shell_char = match shell.as_str() {
+        "bash"|"/bin/bash"
+                    => "",
+        "zsh"|"/bin/zsh"|"/usr/bin/zsh"
+                    => "󰰶",
+        "fish"
+                    => "󰈺",
+        "nushell"
+                    => "",
+        "ion"
+                    => "",
+        "oursh"
+                    => "󱢇",
+        _
+                    => "󱆃",
+    };
+    shell_char.to_string()
+}
+
+fn abrev_path (pwd: PathBuf, homedir: String) -> String {
+    let mut path = pwd.display().to_string();   
+    path = path.replace(&homedir, "~");    // Abreviate homedir with "~"
+    let mut short_dir = path.clone();
+
+    let slashes = path.matches("/").count();
+
+    if slashes > 3 {
+         let parts: Vec<&str> = path.split("/").collect();
+         let len = parts.len() - 1;
+         let mut fch: String;
+ 
+         for p in &parts[0..len] {
+             let part = p;
+             fch = part.chars().next().expect("REASON").to_string();    //1st char of p
+             short_dir = short_dir.replace(part, &fch);
+         }
+     }
+     short_dir
+}
+
+fn root_user (user: Option<OsString>) -> bool {
+    let u = user.expect("UnknownUser").to_str().expect("UnknownUser").to_string();
+    if u == "root"
+        { true }
+    else
+        { false }
+}
 
 fn main() -> std::io::Result<()> {
     let angle = "❯";
     let pwd = current_dir()?;
-    let mut dir = pwd.display().to_string();
     let args: Vec<String> = args().collect();
     let shell: String;
-    let user = var_os("USER").expect("noDir").to_str().expect("noDir").to_string();
-    let homedir = var_os("HOME").expect("noDir").to_str().expect("noDir").to_string();
+    let user = var_os("USER"); //.expect("UnknownUser").to_str().expect("UnknownUser").to_string();
+    //let user = var_os("USER").expect("UnknownUser").to_str().expect("UnknownUser").to_string();
+    let homedir = var_os("HOME").expect("UnknownDir").to_str().expect("UnknownDir").to_string();
     
     if args.len() > 1 {
         shell = args[1].clone();
@@ -18,41 +69,14 @@ fn main() -> std::io::Result<()> {
     else {
         shell = "none".to_string();
     }
-    
-    let shell_char = match shell.as_str() {
-        "bash"      => "",
-        "zsh"       => "󰰶",
-        "fish"      => "󰈺",
-        "nushell"   => "",
-        "ion"       => "",
-        _           => "󱆃",
-    };
-    
-    dir = str::replace(&dir, &homedir, "~");    // Abreviate homedir with "~"
-
-    let mut dir0 = dir.clone();
-    let slashes = dir.matches("/").count();
-    //println!("{}",slashes);
-
-    if slashes > 3 {
-       // let mut dir0 = dir;
-        let parts: Vec<&str> = dir.split("/").collect();
-        let len = parts.len() - 1;
-        let mut fch: String;
-
-        for p in &parts[0..len] {
-            let part = p;
-            fch = part.chars().next().expect("REASON").to_string();    //1st char of p
-            dir0 = str::replace(&dir0, part, &fch);
-            //println!("{}__{}__{}",p,fch,dir0);
-        }
-    }
-    //dir = dir0;
+    //if root_user(user) {
+    //    println!("heh");
+    //}
     
     print!("{} {}{} ",
-                shell_char.truecolor(75,75,75),
-                dir0.italic().truecolor(75,75,75),
+                get_shell_char(shell).truecolor(75,75,75),
+                abrev_path(pwd,homedir).italic().truecolor(75,75,75),
                 angle.truecolor(0, 255, 180),
              );
     Ok(())
-}
+}