scripts: skip macOS symlink creation if already correct

scripts/install.sh

@@ -49,11 +49,7 @@ if [ "$OS" = "Darwin" ]; then
         exit 1
     fi
 
-    if [ -n "${OLLAMA_VERSION:-}" ]; then
-        DOWNLOAD_URL="https://github.com/ollama/ollama/releases/download/${OLLAMA_VERSION}/Ollama-darwin.zip"
-    else
-        DOWNLOAD_URL="https://github.com/ollama/ollama/releases/latest/download/Ollama-darwin.zip"
-    fi
+    DOWNLOAD_URL="https://ollama.com/download/Ollama-darwin.zip${OLLAMA_VERSION:+?version=$OLLAMA_VERSION}"
 
     if pgrep -x Ollama >/dev/null 2>&1; then
         status "Stopping running Ollama instance..."
@@ -74,10 +70,12 @@ if [ "$OS" = "Darwin" ]; then
     unzip -q "$TEMP_DIR/Ollama-darwin.zip" -d "$TEMP_DIR"
     mv "$TEMP_DIR/Ollama.app" "/Applications/"
 
-    status "Adding 'ollama' command to PATH (may require password)..."
-    mkdir -p "/usr/local/bin" 2>/dev/null || sudo mkdir -p "/usr/local/bin"
-    ln -sf "/Applications/Ollama.app/Contents/Resources/ollama" "/usr/local/bin/ollama" 2>/dev/null || \
-        sudo ln -sf "/Applications/Ollama.app/Contents/Resources/ollama" "/usr/local/bin/ollama"
+    if [ ! -L "/usr/local/bin/ollama" ] || [ "$(readlink "/usr/local/bin/ollama")" != "/Applications/Ollama.app/Contents/Resources/ollama" ]; then
+        status "Adding 'ollama' command to PATH (may require password)..."
+        mkdir -p "/usr/local/bin" 2>/dev/null || sudo mkdir -p "/usr/local/bin"
+        ln -sf "/Applications/Ollama.app/Contents/Resources/ollama" "/usr/local/bin/ollama" 2>/dev/null || \
+            sudo ln -sf "/Applications/Ollama.app/Contents/Resources/ollama" "/usr/local/bin/ollama"
+    fi
 
     if [ -z "${OLLAMA_NO_START:-}" ]; then
         status "Starting Ollama..."