feat: add *Nushell* support (#788)

* feat: add *Nushell* support

* refactor: use `sh` to swap `STDOUT` and `STDERR` instead of using a temporary file

* feat: include both keybindings, with the current REPL buffer passed to *Atuin*'s

* feat: don't record commands run by keybindings

1 files changed, 44 insertions, 0 deletions

diff --git a/src/command/init.rs b/src/command/init.rs
index 585a8281..7cb4b35e 100644
--- a/src/command/init.rs
+++ b/src/command/init.rs
@@ -21,6 +21,8 @@ pub enum Shell {
     Bash,
     /// Fish setup
     Fish,
+    /// Nu setup
+    Nu,
 }
 
 impl Cmd {
@@ -90,11 +92,53 @@ bind -M insert \e\[A _atuin_bind_up";
             println!("end");
         }
     }
+
+    fn init_nu(&self) {
+        let full = include_str!("../shell/atuin.nu");
+        println!("{full}");
+
+        if std::env::var("ATUIN_NOBIND").is_err() {
+            const BIND_CTRL_R: &str = r#"let-env config = (
+    $env.config | upsert keybindings (
+        $env.config.keybindings
+        | append {
+            name: atuin
+            modifier: control
+            keycode: char_r
+            mode: emacs
+            event: { send: executehostcommand cmd: (_atuin_search_cmd) }
+        }
+    )
+)
+"#;
+            const BIND_UP_ARROW: &str = r#"let-env config = (
+    $env.config | upsert keybindings (
+        $env.config.keybindings
+        | append {
+            name: atuin
+            modifier: none
+            keycode: up
+            mode: emacs
+            event: { send: executehostcommand cmd: (_atuin_search_cmd '--shell-up-key-binding') }
+        }
+    )
+)
+"#;
+            if !self.disable_ctrl_r {
+                println!("{BIND_CTRL_R}");
+            }
+            if !self.disable_up_arrow {
+                println!("{BIND_UP_ARROW}");
+            }
+        }
+    }
+
     pub fn run(self) {
         match self.shell {
             Shell::Zsh => self.init_zsh(),
             Shell::Bash => self.init_bash(),
             Shell::Fish => self.init_fish(),
+            Shell::Nu => self.init_nu(),
         }
     }
 }