From 07c802b93a241d566161d3077b3254df4067fa1e Mon Sep 17 00:00:00 2001
From: Jonas Maier <>
Date: Thu, 5 Mar 2026 17:37:52 +0100
Subject: lots of shenanigans to have proper execve reload

---
 src/run/builtin.rs | 10 +++++++---
 src/run/mod.rs     |  5 +++++
 2 files changed, 12 insertions(+), 3 deletions(-)

(limited to 'src/run')

diff --git a/src/run/builtin.rs b/src/run/builtin.rs
index 0f90e51..da6f4f2 100644
--- a/src/run/builtin.rs
+++ b/src/run/builtin.rs
@@ -43,9 +43,13 @@ impl Builtin for re {
         session.raw.disable();
         match Command::new("cargo").arg("build").status() {
             Ok(status) if status.success() => {
-                let _ = Command::new("cargo").arg("run").status();
-                session.raw.disable();
-                std::process::exit(0);
+                // build of new shell succeeded
+
+                // unwind the entire stack intentionally to free resources
+                // the catch handler will check the boolean and execve into 
+                // the new executable
+                super::RELOAD.store(true, std::sync::atomic::Ordering::SeqCst);
+                std::panic::resume_unwind(Box::new(42));
             }
             _ => (),
         }
diff --git a/src/run/mod.rs b/src/run/mod.rs
index 6484e30..0000547 100644
--- a/src/run/mod.rs
+++ b/src/run/mod.rs
@@ -2,12 +2,17 @@ use std::collections::HashMap;
 use std::fs;
 use std::os::unix::fs::PermissionsExt;
 use std::path::PathBuf;
+#[cfg(debug_assertions)]
+use std::sync::atomic::AtomicBool;
 
 use crate::parse::Ast;
 use crate::*;
 
 mod builtin;
 
+#[cfg(debug_assertions)]
+pub static RELOAD: AtomicBool = AtomicBool::new(false);
+
 pub fn run(se: &mut Session, cmd: Vec<u8>) {
     let parsed = parse::do_parse(&cmd);
 
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