make clipboard optional

Cargo.toml

@@ -10,4 +10,8 @@ ykoath = { version = "0.1.0", git = "https://github.com/icewind1991/ykoath-rs",
 anyhow = "1"
 chrono = "0.4"
 fuzzy_finder = "0.3.0"
-cli-clipboard = "0.3.0"
+cli-clipboard = { version = "0.3.0", optional = true }
+
+[features]
+default = ["clipboard"]
+clipboard = ["cli-clipboard"]

src/main.rs

@@ -47,11 +47,21 @@ fn main() -> anyhow::Result<()> {
         }
     };
 
-    if let Err(_) = cli_clipboard::set_contents(code.to_string()) {
-        println!("{}", code);
-    } else {
+    if try_copy(code.to_string()) {
         println!("{} - Copied", code);
+    } else {
+        println!("{}", code);
     }
 
     Ok(())
 }
+
+#[cfg(feature = "clipboard")]
+fn try_copy(code: String) -> bool {
+    cli_clipboard::set_contents(code).is_ok()
+}
+
+#[cfg(not(feature = "clipboard"))]
+fn try_copy(_code: String) -> bool {
+    false
+}