wip 2

src/log.rs

@@ -0,0 +1,26 @@
+use std::{io::IsTerminal, sync::LazyLock};
+
+static IS_STDERR_TERMINAL: LazyLock<bool> = LazyLock::new(|| std::io::stderr().is_terminal());
+
+const ARROW: &str = "==>";
+
+fn emit(color: &str, action: &str, details: &str) {
+    if *IS_STDERR_TERMINAL {
+        eprintln!("\x1b[{color}m{ARROW} \x1b[1m{action} \x1b[0m{details}");
+    } else {
+        eprintln!("{ARROW} {action} {details}");
+    }
+}
+
+pub fn step(action: &str, details: &str) {
+    emit("1;34", action, details);
+}
+
+pub fn skip(action: &str, details: &str) {
+    emit("1;33", action, details);
+}
+
+#[allow(dead_code)]
+pub fn info(action: &str, details: &str) {
+    emit("1;32", action, details);
+}