partial completions (#4704)

Cargo.lock

@@ -3392,7 +3392,7 @@ dependencies = [
 [[package]]
 name = "reedline"
 version = "0.2.0"
-source = "git+https://github.com/nushell/reedline?branch=main#3d933d52cee44b889b2d92b9688e071a8e4b992d"
+source = "git+https://github.com/nushell/reedline?branch=main#e9c1e37d7cd0d301362b2b900a85dcaf3de05d53"
 dependencies = [
  "chrono",
  "crossterm",

crates/nu-protocol/src/config.rs

@@ -26,6 +26,7 @@ pub struct Config {
     pub filesize_format: String,
     pub use_ansi_coloring: bool,
     pub quick_completions: bool,
+    pub partial_completions: bool,
     pub edit_mode: String,
     pub max_history_size: i64,
     pub log_level: String,
@@ -49,6 +50,7 @@ impl Default for Config {
             filesize_format: "auto".into(),
             use_ansi_coloring: true,
             quick_completions: true,
+            partial_completions: true,
             edit_mode: "emacs".into(),
             max_history_size: 1000,
             log_level: String::new(),
@@ -160,6 +162,13 @@ impl Value {
                             eprintln!("$config.quick_completions is not a bool")
                         }
                     }
+                    "partial_completions" => {
+                        if let Ok(b) = value.as_bool() {
+                            config.partial_completions = b;
+                        } else {
+                            eprintln!("$config.partial_completions is not a bool")
+                        }
+                    }
                     "rm_always_trash" => {
                         if let Ok(b) = value.as_bool() {
                             config.rm_always_trash = b;

docs/sample_config/default_config.nu

@@ -170,6 +170,7 @@ let $config = {
   use_grid_icons: true
   footer_mode: "25" # always, never, number_of_rows, auto
   quick_completions: true  # set this to false to prevent auto-selecting completions when only one remains
+  partial_completions: true  # set this to false to prevent partial filling of the prompt
   animate_prompt: false # redraw the prompt every second
   float_precision: 2
   use_ansi_coloring: true

src/repl.rs

@@ -147,6 +147,7 @@ pub(crate) fn evaluate(
                 stack.vars.get(&CONFIG_VARIABLE_ID).cloned(),
             )))
             .with_quick_completions(config.quick_completions)
+            .with_partial_completions(config.partial_completions)
             .with_ansi_colors(config.use_ansi_coloring);
 
         if is_perf_true() {