persist command history

Author: jgarzik

Cargo.lock

@@ -16,7 +16,7 @@ dirs = "5"
 dotenvy = "0.15"
 glob = "0.3"
 regex = "1"
-rustyline = "14"
+rustyline = { version = "17", features = ["with-file-history"] }
 serde = { version = "1", features = ["derive"] }
 serde_json = "1"
 serde_yaml = { package = "serde_yml", version = "0.0.12" }

Cargo.toml

@@ -47,7 +47,11 @@ fn verbose(ctx: &Context, message: &str) {
     }
 }
 
-pub fn run_turn(ctx: &Context, user_input: &str, messages: &mut Vec<Value>) -> Result<CommandStats> {
+pub fn run_turn(
+    ctx: &Context,
+    user_input: &str,
+    messages: &mut Vec<Value>,
+) -> Result<CommandStats> {
     let mut stats = CommandStats::default();
     let _ = ctx.transcript.borrow_mut().user_message(user_input);
 

src/agent.rs

@@ -18,6 +18,14 @@ use std::cell::RefCell;
 use std::path::PathBuf;
 use std::time::{Duration, Instant};
 
+/// Get the path to the history file
+fn history_path() -> PathBuf {
+    dirs::home_dir()
+        .unwrap_or_else(|| PathBuf::from("."))
+        .join(".yo")
+        .join("history")
+}
+
 pub struct Context {
     pub args: Args,
     pub root: PathBuf,
@@ -62,6 +70,10 @@ pub fn run_repl(ctx: Context) -> Result<()> {
     let mut rl = DefaultEditor::new()?;
     let mut messages = Vec::new();
 
+    // Load command history
+    let history_file = history_path();
+    let _ = rl.load_history(&history_file);
+
     println!("yo - type /help for commands, /exit to quit");
 
     loop {
@@ -98,6 +110,12 @@ pub fn run_repl(ctx: Context) -> Result<()> {
         }
     }
 
+    // Save command history (create parent directory if needed)
+    if let Some(parent) = history_file.parent() {
+        let _ = std::fs::create_dir_all(parent);
+    }
+    let _ = rl.save_history(&history_file);
+
     Ok(())
 }