Refactor setup workflow

Scripts/rust.sh

@@ -0,0 +1,41 @@
+#!/bin/bash
+
+# Path: Scripts/rust.sh
+
+set -e
+
+BLUE='\033[1;34m'
+YELLOW='\033[1;33m'
+GREEN='\033[1;32m'
+NC='\033[0m'
+
+export RUSTUP_HOME="$HOME/.programming/rust/multirust"
+export CARGO_HOME="$HOME/.programming/rust/cargo"
+
+echo -e "${BLUE}    LOG:${YELLOW} Setting up Rust (Rustup) in ${CARGO_HOME}...${NC}"
+
+if [ ! -f "$CARGO_HOME/bin/rustup" ]; then
+    echo -e "${BLUE}    LOG:${YELLOW} Installing Rustup to custom path...${NC}"
+    mkdir -p "$RUSTUP_HOME" "$CARGO_HOME"
+    curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --no-modify-path
+else
+    echo -e "${GREEN}    LOG: Rustup already installed in custom path.${NC}"
+fi
+
+if [ -f "$CARGO_HOME/env" ]; then
+    source "$CARGO_HOME/env"
+fi
+
+if command -v cargo &> /dev/null; then
+    echo -e "${BLUE}    LOG:${YELLOW} Updating toolchain...${NC}"
+    rustup default stable
+    rustup update
+    
+    echo -e "${BLUE}    LOG:${YELLOW} Installing rust-src for 'Go to Definition'...${NC}"
+    rustup component add rust-src
+
+    echo -e "${GREEN}    LOG: Rust setup complete. $(cargo --version)${NC}"
+else
+    echo -e "${RED}    ERROR: Cargo not found in PATH. Check CARGO_HOME.${NC}"
+    exit 1
+fi