eh: improve error and warning glyphs; move logger to new crate

Signed-off-by: NotAShelf <raf@notashelf.dev>
Change-Id: I563b37a9f38f8dcec6dda7693ae45e826a6a6964

crates/eh-log/src/lib.rs

@@ -0,0 +1,31 @@
+use std::fmt;
+
+use yansi::Paint;
+
+pub fn info(args: fmt::Arguments) {
+  eprintln!("  {} {args}", "->".green().bold());
+}
+
+pub fn warn(args: fmt::Arguments) {
+  eprintln!("  {} {args}", "->".yellow().bold());
+}
+
+pub fn error(args: fmt::Arguments) {
+  eprintln!("  {} {args}", "!".red().bold());
+}
+
+pub fn hint(args: fmt::Arguments) {
+  eprintln!("  {} {args}", "~".yellow().dim());
+}
+
+#[macro_export]
+macro_rules! log_info  { ($($t:tt)*) => { $crate::info(format_args!($($t)*)) } }
+
+#[macro_export]
+macro_rules! log_warn  { ($($t:tt)*) => { $crate::warn(format_args!($($t)*)) } }
+
+#[macro_export]
+macro_rules! log_error { ($($t:tt)*) => { $crate::error(format_args!($($t)*)) } }
+
+#[macro_export]
+macro_rules! log_hint  { ($($t:tt)*) => { $crate::hint(format_args!($($t)*)) } }