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

2 files changed, 63 insertions, 1 deletions

diff --git a/src/command/client/import.rs b/src/command/client/import.rs
index 7d7c2caf..7abc3d44 100644
--- a/src/command/client/import.rs
+++ b/src/command/client/import.rs
@@ -9,7 +9,8 @@ use atuin_client::{
     database::Database,
     history::History,
     import::{
-        bash::Bash, fish::Fish, resh::Resh, zsh::Zsh, zsh_histdb::ZshHistDb, Importer, Loader,
+        bash::Bash, fish::Fish, nu::Nu, nu_histdb::NuHistDb, resh::Resh, zsh::Zsh,
+        zsh_histdb::ZshHistDb, Importer, Loader,
     },
 };
 
@@ -29,6 +30,10 @@ pub enum Cmd {
     Resh,
     /// Import history from the fish history file
     Fish,
+    /// Import history from the nu history file
+    Nu,
+    /// Import history from the nu history file
+    NuHistDb,
 }
 
 const BATCH_SIZE: usize = 100;
@@ -68,6 +73,17 @@ impl Cmd {
                 } else if shell.ends_with("/bash") {
                     println!("Detected Bash");
                     import::<Bash, DB>(db).await
+                } else if shell.ends_with("/nu") {
+                    if NuHistDb::histpath().is_ok() {
+                        println!(
+                            "Detected Nu-HistDb, using :{}",
+                            NuHistDb::histpath().unwrap().to_str().unwrap()
+                        );
+                        import::<NuHistDb, DB>(db).await
+                    } else {
+                        println!("Detected Nushell");
+                        import::<Nu, DB>(db).await
+                    }
                 } else {
                     println!("cannot import {shell} history");
                     Ok(())
@@ -79,6 +95,8 @@ impl Cmd {
             Self::Bash => import::<Bash, DB>(db).await,
             Self::Resh => import::<Resh, DB>(db).await,
             Self::Fish => import::<Fish, DB>(db).await,
+            Self::Nu => import::<Nu, DB>(db).await,
+            Self::NuHistDb => import::<NuHistDb, DB>(db).await,
         }
     }
 }
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(),
         }
     }
 }