fix: hidden cursor when ctrl-c gets invoked (#57)

If a user pressed ctrl-c/ctrl-d during the questioning process, the
cursor would be hidden after the process gets terminated. A custom
callback has been registered that restores the cursor if one of the
signals gets send.

Fixes #40

Cargo.toml

@@ -16,6 +16,7 @@ anyhow = "1.0.39"
 cargo_toml = "0.8.1"
 clap = "3.0.0-beta.2"
 console = "0.14.1"
+ctrlc = { version = "3.1.8", features = ["termination"] }
 dialoguer = "0.8.0"
 edit = "0.1.3"
 git2 = { version = "0.13.17", features = ["vendored-openssl"] }

src/main.rs

@@ -73,6 +73,15 @@ fn main() {
     if !app.repo_path.exists() || get_repository(app.repo_path.as_path()).is_err() {
         eprintln!("Invalid path to repository: {}", app.repo_path.display());
     } else {
+        // When terminating the CLI during the dialoguer phase, the cursor will be
+        // hidden. The callback here makes sure that the cursor is visible in these
+        // cases.
+        let _ = ctrlc::set_handler(move || {
+            let term = dialoguer::console::Term::stderr();
+            let _ = term.show_cursor();
+            std::process::exit(1);
+        });
+
         run(app);
     }
 }