Standardize error messages, formatting, and code style. Refine --help text for consistency. Update comments for clarity and tone alignment.

src/ui.rs

@@ -1,9 +1,10 @@
-//! Colorized status output, honoring `NO_COLOR` and terminal detection.
+//! Colorized status output, honouring `NO_COLOR` and terminal detection.
 
 use std::io::IsTerminal;
 use std::sync::OnceLock;
 
-fn color_enabled() -> bool {
+fn color_enabled() -> bool 
+{
     static ENABLED: OnceLock<bool> = OnceLock::new();
     *ENABLED.get_or_init(|| {
         std::env::var_os("NO_COLOR").is_none()
@@ -13,46 +14,19 @@ fn color_enabled() -> bool {
     })
 }
 
-fn paint(code: &str, s: &str) -> String {
-    if color_enabled() {
-        format!("\x1b[{code}m{s}\x1b[0m")
-    } else {
-        s.to_string()
-    }
+fn paint(code: &str, s: &str) -> String 
+{
+    if color_enabled() { format!("\x1b[{code}m{s}\x1b[0m") } 
+    else               { s.to_string() }
 }
 
-pub fn red(s: &str) -> String {
-    paint("31", s)
-}
+pub fn    red(s: &str) -> String { paint("31", s) }
+pub fn yellow(s: &str) -> String { paint("33", s) }
+pub fn  green(s: &str) -> String { paint("32", s) }
+pub fn   blue(s: &str) -> String { paint("34", s) }
+pub fn   cyan(s: &str) -> String { paint("36", s) }
 
-pub fn yellow(s: &str) -> String {
-    paint("33", s)
-}
-
-pub fn green(s: &str) -> String {
-    paint("32", s)
-}
-
-pub fn blue(s: &str) -> String {
-    paint("34", s)
-}
-
-pub fn cyan(s: &str) -> String {
-    paint("36", s)
-}
-
-pub fn err(msg: &str) {
-    eprintln!("{}", red(&format!("Error: {msg}")));
-}
-
-pub fn warn(msg: &str) {
-    eprintln!("{}", yellow(&format!("Warning: {msg}")));
-}
-
-pub fn info(msg: &str) {
-    println!("{}", blue(msg));
-}
-
-pub fn ok(msg: &str) {
-    println!("{}", green(msg));
-}
+pub fn  err(msg: &str) { eprintln!("{}", red(&format!("Error: {msg}"))); }
+pub fn warn(msg: &str) { eprintln!("{}", yellow(&format!("Warning: {msg}"))); }
+pub fn info(msg: &str) { println!("{}", blue(msg)); }
+pub fn   ok(msg: &str) { println!("{}", green(msg)); }