Merge pull request #901 from suimong/master

add integration with nushell

docs/installation.md

@@ -132,6 +132,16 @@ eval (navi widget elvish | slurp)
 xontrib load navi # ← add to your xonsh run control file
 ```
 
+#### Nushell
+
+Due to Nushell's [unique design](https://www.nushell.sh/book/thinking_in_nu.html#think-of-nushell-as-a-compiled-language), it is not possible to `eval` a piece of code dynamically like in other shells therefore the integration process is a bit more involved. Here is an example: 
+1. run `^navi widget nushell | save ($nu.default-config-dir | path join "navi-integration.nu")`
+2. add the following lines to `config.nu`:
+    ```nushell
+    source ($nu.default-config-dir | path join "navi-integration.nu")
+    ```
+
+
 By default, `Ctrl+G` is assigned to launching **navi** (in xonsh can be customized with `$X_NAVI_KEY`, see [xontrib-navi](https://github.com/eugenesvk/xontrib-navi) for details).
 
 There's currently no way to customize the widget behavior out-of-the-box. If you want to change the keybinding or the **navi** flags used by the widget, please:

shell/navi.plugin.nu

@@ -0,0 +1,34 @@
+export def navi_widget [] {
+    let current_input = (commandline)
+    let last_command = ($current_input | navi fn widget::last_command | str trim)
+
+    match ($last_command | is-empty) {
+        true => {^navi --print | complete | get "stdout"}
+        false => {
+            let find = $"($last_command)_NAVIEND"
+            let replacement = (^navi --print --query $'($last_command)' | complete | get "stdout")
+
+            match ($replacement | str trim | is-empty) {
+                false => {$"($current_input)_NAVIEND" | str replace $find $replacement}
+                true => $current_input
+            }
+        }
+    } 
+    | str trim
+    | commandline edit --replace $in
+    
+    commandline set-cursor --end
+}
+
+let nav_keybinding = {
+    name: "navi",
+    modifier: control,
+    keycode: char_g,
+    mode: [emacs, vi_normal, vi_insert],
+    event: {
+        send: executehostcommand,
+        cmd: navi_widget,
+    }
+}
+
+$env.config.keybindings = ($env.config.keybindings | append $nav_keybinding)

src/commands/shell.rs

@@ -13,6 +13,7 @@ impl Display for Shell {
             Self::Zsh => "zsh",
             Self::Fish => "fish",
             Self::Elvish => "elvish",
+            Self::Nushell => "nushell",
         };
 
         write!(f, "{s}")
@@ -34,6 +35,7 @@ impl Runnable for Input {
             Shell::Zsh => include_str!("../../shell/navi.plugin.zsh"),
             Shell::Fish => include_str!("../../shell/navi.plugin.fish"),
             Shell::Elvish => include_str!("../../shell/navi.plugin.elv"),
+            Shell::Nushell => include_str!("../../shell/navi.plugin.nu"),
         };
 
         println!("{content}");

src/common/shell.rs

@@ -11,6 +11,7 @@ pub enum Shell {
     Zsh,
     Fish,
     Elvish,
+    Nushell
 }
 
 #[derive(Error, Debug)]

tests/run

@@ -159,6 +159,7 @@ test::run "bash" _navi_widget "bash"
 test::run "zsh" _navi_widget "zsh"
 test::run "fish" _navi_widget "fish"
 test::run "elvish" _navi_widget "elvish"
+test::run "nu" _navi_widget "nushell"
 
 test::set_suite "3rd party"
 test::run "tldr" _navi_tldr