From 1852778f75645b987d17f6480f858a9bd6411806 Mon Sep 17 00:00:00 2001
From: "Andrew Phillips (aider)" <andrew.phillips2@canada.ca>
Date: Tue, 6 May 2025 13:29:52 -0300
Subject: [PATCH] feat: pass file descriptors to diff command

---
 src/main.rs | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/main.rs b/src/main.rs
index c08591d..12729fe 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -519,12 +519,14 @@ fn mode_diff(cmd: &mut Command, args: Args, ids: &mut Vec<i64>, tags: &mut Vec<S
 
             let compression_engine_b = compression::get_engine(compression_type_b).expect("Unable to get compression engine");
 
-            let (_fd_a_read, fd_a_write) = unistd::pipe().unwrap();
-            let (_fd_b_read, fd_b_write) = unistd::pipe().unwrap();
+            let (fd_a_read, fd_a_write) = unistd::pipe().unwrap();
+            let (fd_b_read, fd_b_write) = unistd::pipe().unwrap();
 
             let child = std::process::Command::new("diff")
                 .arg("-u")
-                .stdin(std::process::Stdio::piped())
+                .arg(format!("/dev/fd/{}", fd_a_read))
+                .arg(format!("/dev/fd/{}", fd_b_read))
+                .stdin(std::process::Stdio::null())
                 .stdout(std::process::Stdio::piped())
                 .stderr(std::process::Stdio::piped())
                 .spawn()