remove jq curl install since present in base image

check if rustc is already installed

Dockerfile

@@ -3,8 +3,7 @@ FROM ghcr.io/linuxserver/baseimage-alpine:3.19 as buildstage
 
 ARG MOD_VERSION
 
-RUN apk add --no-cache curl jq && \
-  if [ -z "$MOD_VERSION" ]; then \
+RUN if [ -z "$MOD_VERSION" ]; then \
     MOD_VERSION=$(curl -s https://api.github.com/repos/rust-lang/rust/releases/latest | jq -r .tag_name); \
   fi && \
   mkdir -p /root-layer/rust-bins && \

root/etc/s6-overlay/s6-rc.d/init-mod-code-server-rust-install/run

@@ -2,6 +2,11 @@
 
 set -e
 
+if command -v rustc >/dev/null 2>&1; then
+  echo "+++ rust is already installed +++"
+  exit 0
+fi
+
 RUST_BINS_PATH="/rust-bins"
 PACKAGES_TO_INSTALL_LIST="/mod-repo-packages-to-install.list"