From f2e260f55d247392cc0186dc8363a39d5a9cefc5 Mon Sep 17 00:00:00 2001
From: denerFernandes <837495+denerFernandes@users.noreply.github.com>
Date: Thu, 14 May 2026 20:41:27 +0200
Subject: [PATCH] fix(docker): touch src/main.rs to force recompilation in
 cache layer

The dependency-cache layer removes the binary and fingerprints, but
cargo's incremental detection still considers the crate up-to-date
when the real sources are COPYed in the next layer. This resulted in
a 580KB dummy binary (from the 'fn main(){}' stub) being shipped
instead of the real 15MB proxy binary.

Adding 'touch src/main.rs' before the final cargo build forces cargo
to recompile the turbineproxy crate.
---
 Dockerfile | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index 10de1e2..9a1e105 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -50,8 +50,11 @@ RUN RUST_TARGET="$(cat /rust_target)" \
 # ── Full source build ──
 COPY src ./src
 COPY benches ./benches
-RUN CARGO_INCREMENTAL=0 cargo build --release \
-        --target "$(cat /rust_target)"
+# Touch main.rs to force cargo to re-link (the dep-cache step removes the
+# binary and fingerprints, but cargo sometimes still skips recompilation).
+RUN touch src/main.rs \
+    && CARGO_INCREMENTAL=0 cargo build --release \
+           --target "$(cat /rust_target)"
 
 # ── Copy binary to a fixed path so the runtime stage doesn't need TARGETARCH ──
 RUN cp "target/$(cat /rust_target)/release/turbineproxy" /turbineproxy