Add Linux/macOS updater for v16+

Author: SvenGDK

PSMUpdate.sh

@@ -0,0 +1,73 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+URL_LINUX="https://raw.githubusercontent.com/SvenGDK/PS-Multi-Tools/main/LinuxUpdate.zip"
+URL_MAC="https://raw.githubusercontent.com/SvenGDK/PS-Multi-Tools/main/macOSUpdate.zip"
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+
+OS="$(uname -s)"
+case "$OS" in
+  Linux) PLATFORM="linux" ;;
+  Darwin) PLATFORM="macos" ;;
+  FreeBSD) PLATFORM="freebsd" ;;
+  *) PLATFORM="unknown" ;;
+esac
+
+if [ "$PLATFORM" = "macos" ]; then
+  URL="$URL_MAC"
+else
+  URL="$URL_LINUX"
+fi
+
+if [ "$PLATFORM" = "linux" ]; then
+  TMP_ZIP="$(mktemp --tmpdir linuxupdate.XXXXXX)"
+elif [ "$PLATFORM" = "macos" ]; then
+  TMP_ZIP="$(mktemp -t linuxupdate)"
+elif [ "$PLATFORM" = "freebsd" ]; then
+  TMP_ZIP="$(mktemp /tmp/linuxupdate.XXXXXX)"
+else
+  TMP_ZIP="$(mktemp)"
+fi
+
+cleanup() {
+  rm -f "$TMP_ZIP"
+}
+trap cleanup EXIT
+
+if ! command -v unzip >/dev/null 2>&1; then
+  if [ "$PLATFORM" = "linux" ]; then
+    echo "Error: unzip is not installed. Install it (e.g., sudo apt install unzip) and retry." >&2
+  elif [ "$PLATFORM" = "macos" ]; then
+    echo "Error: unzip is not available. On macOS install via Homebrew if needed: brew install unzip" >&2
+  elif [ "$PLATFORM" = "freebsd" ]; then
+    echo "Error: unzip is not installed. Install it with: sudo pkg install unzip" >&2
+  else
+    echo "Error: unzip is not installed. Please install unzip and retry." >&2
+  fi
+  exit 1
+fi
+
+echo "Platform detected: $PLATFORM"
+echo "Downloading $URL ..."
+
+if command -v curl >/dev/null 2>&1; then
+  curl -fL --retry 3 --retry-delay 2 -o "$TMP_ZIP" "$URL"
+elif command -v wget >/dev/null 2>&1; then
+  wget -q -O "$TMP_ZIP" "$URL"
+elif [ "$PLATFORM" = "freebsd" ] && command -v fetch >/dev/null 2>&1; then
+  fetch -o "$TMP_ZIP" "$URL"
+else
+  echo "Error: neither curl nor wget (nor fetch on FreeBSD) is available. Install one and retry." >&2
+  exit 1
+fi
+
+if command -v file >/dev/null 2>&1; then
+  if ! file -b --mime-type "$TMP_ZIP" | grep -qi 'zip'; then
+    echo "Warning: downloaded file does not appear to be a ZIP archive." >&2
+  fi
+fi
+
+echo "Extracting into $SCRIPT_DIR ..."
+unzip -o "$TMP_ZIP" -d "$SCRIPT_DIR"
+
+echo "Done. PS Multi Tools has been updated!"