From 31025c245cd9a629e305c7d35d7fe63d47da2e88 Mon Sep 17 00:00:00 2001
From: andrea <andrea@perditum.com>
Date: Thu, 8 May 2025 08:19:45 +0000
Subject: [PATCH] feat(ci): speed up builds by caching dependencies

---
 Dockerfile | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Dockerfile b/Dockerfile
index 948b1a0..451ebac 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -6,6 +6,10 @@ RUN apk add --no-cache musl-dev openssl-dev openssl-libs-static protobuf-dev lld
 
 WORKDIR /app
 
+# this optimizes build time by putting the dependencies in a seperate docker layer, speeding up future builds
+COPY Cargo.toml Cargo.lock ./
+RUN mkdir src && echo "fn main() {}" > src/main.rs && cargo fetch
+
 COPY . .
 
 RUN OPENSSL_LIB_DIR=/usr/lib OPENSSL_INCLUDE_DIR=/usr/include/openssl OPENSSL_STATIC=1 RUSTFLAGS="-C target-feature=+aes,+sse -C relocation-model=static -C linker=ld.lld" cargo build --profile prod --target x86_64-unknown-linux-musl