From 727861b38f067b5c162cae2158854e4aec587544 Mon Sep 17 00:00:00 2001
From: Jonas Maier <>
Date: Thu, 5 Mar 2026 13:43:40 +0100
Subject: file sinks

---
 src/run/builtin.rs | 38 ++++++++++++++++++++++++++++++++++++--
 1 file changed, 36 insertions(+), 2 deletions(-)

(limited to 'src/run/builtin.rs')

diff --git a/src/run/builtin.rs b/src/run/builtin.rs
index feba7f9..cdeeffe 100644
--- a/src/run/builtin.rs
+++ b/src/run/builtin.rs
@@ -1,3 +1,5 @@
+use std::{fs::OpenOptions, path::PathBuf};
+
 use super::Builtin;
 use crate::*;
 
@@ -43,8 +45,40 @@ impl Builtin for Re {
     }
 }
 
+pub struct Sink {
+    name: &'static str,
+    append: bool,
+}
+
+impl Builtin for Sink {
+    fn name(&self) -> &str {
+        self.name
+    }
+
+    fn io(
+        &self,
+        args: &[BString],
+        stdin: &mut dyn Read,
+        _stdout: &mut dyn Write,
+    ) -> std::io::Result<()> {
+        let Some(path) = args.get(0) else {
+            // TODO exit code
+            return Ok(());
+        };
+        let path = PathBuf::from(OsStr::from_bytes(path));
+        let mut file = OpenOptions::new()
+            .write(true)
+            .create(true)
+            .append(self.append)
+            .open(path)?;
+        std::io::copy(stdin, &mut file)?;
+        Ok(())
+    }
+}
+
+pub const fn sink(name: &'static str, append: bool) -> Sink {
+    Sink { name, append }
+}
 
 // TODO
 // from" => todo!("read from file"),
-// to" | b"into" => todo!("write into file"),
-// append" => todo!("append to file"),
-- 
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