Cpp

scripts/rust.sh

@@ -7,21 +7,27 @@ YELLOW='\033[1;33m'
 GREEN='\033[1;32m'
 NC='\033[0m'
 
-# 1. Define Custom Paths
+# 1. Define Custom Paths (The Black Box)
 export RUSTUP_HOME="$HOME/.programming/rust/multirust"
 export CARGO_HOME="$HOME/.programming/rust/cargo"
 
-echo -e "${BLUE}    LOG:${YELLOW} Setting up Rust (Rustup)...${NC}"
+echo -e "${BLUE}    LOG:${YELLOW} Setting up Rust (Rustup) in ${CARGO_HOME}...${NC}"
 
 # 2. Install Rustup (if missing)
 if [ ! -f "$CARGO_HOME/bin/rustup" ]; then
     echo -e "${BLUE}    LOG:${YELLOW} Installing Rustup to custom path...${NC}"
+    
+    # Create parent dirs to be safe
+    mkdir -p "$RUSTUP_HOME" "$CARGO_HOME"
+    
+    # Install: --no-modify-path keeps your .zshrc clean (we manage it manually)
     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
 
 # 3. Source Environment
+# This loads cargo into the PATH for the rest of this script
 if [ -f "$CARGO_HOME/env" ]; then
     source "$CARGO_HOME/env"
 fi
@@ -31,7 +37,13 @@ if command -v cargo &> /dev/null; then
     echo -e "${BLUE}    LOG:${YELLOW} Updating toolchain...${NC}"
     rustup default stable
     rustup update
-    echo -e "${GREEN}    LOG: Rust setup complete.$(cargo --version)${NC}"
+    
+    # CRITICAL FOR LEARNING: Install source code for the standard library
+    # This allows you to inspect 'std' code in your IDE (VS Code/Neovim)
+    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