Add a script to automate Synology package generation

.gitignore

@@ -66,6 +66,9 @@ megacmd_src_file_list.h
 # macOS packaging files and artifacts
 Info.plist
 
+# Synology packaging files and artifacts
+/build/SynologyNAS/packages
+
 # Git
 *_BACKUP_*
 *_BASE_*

build/SynologyNAS/README.md

@@ -24,6 +24,8 @@ After copying, we can stop and remove the container if needed:
 docker rm -f megacmd-dms
 ```
 
+The script `build/SynologyNAS/generate_pkg.sh` automates all of these steps, creating the necessary docker container, extracting the package from it, and deleting it afterwards. In this case, the package will be extracted to `build/SynologyNAS/packages`.
+
 To install the package on your NAS device, login using the web interface. Navigate to the Package Manager, and click Manual Install. This will open up a menu which lets you choose a local file. Select your generated .pkg file, and install.
 
 To actually run MEGAcmd, you'll need to enable a telnet or SSH connection in the Synology NAS, and run a remote terminal on it. Executables are available at `/volume1/@appstore/megacmdpkg`.

build/SynologyNAS/generate_pkg.sh

@@ -0,0 +1,28 @@
+#!/bin/bash
+set -e
+
+if [ "$#" -ne 1 ]; then
+    echo "Usage: $0 <platform>"
+    exit 1
+fi
+
+PLATFORM="$1"
+CONTAINER="megacmd-${PLATFORM}-build-env"
+
+cleanup() {
+    echo "Cleaning up container..."
+    docker rm -f $CONTAINER > /dev/null 2>&1 || true
+}
+trap cleanup EXIT
+
+echo "Starting build for '${PLATFORM}'..."
+
+docker build -t $CONTAINER \
+  -f "$PWD/build/SynologyNAS/dockerfile/synology-cross-build.dockerfile" \
+  "$PWD" \
+  --build-arg PLATFORM="$PLATFORM"
+
+CONTAINER_ID=$(docker create $CONTAINER)
+docker cp "${CONTAINER_ID}:/image/${PLATFORM}" $PWD/build/SynologyNAS/packages/$PLATFORM
+
+echo "Extracted package for '${PLATFORM}'"