Refactored build scripts and removed unused dependencies

- Added the following Gradle tasks:
  - buildLocal (alias for build)
  - buildCrossPlatform (builds with all natives)
  - packageDebian
  - packageWindows
- Gradle no longer downloads or packages natives for wrong platforms
(unless buildCrossPlatform or require*Dependencies is run)
- Gradle should no longer complain about deprecated features
- buildPackages.sh is now a lot more robust
- Removed the following dependencies:
  - Apache Commons Math
  - Everything in LWJGL except OpenGL/AL, GLFW, STB and core

buildPackages.sh

@@ -1,38 +1,159 @@
 #!/bin/bash
 
-lst="nsis"
+echoerr() { echo "$@" 1>&2; }
 
-user=`whoami`
+buildDebianPackage() {
 
-dpkg -l 2>/dev/null > ls.tmp
+    # Commands that must be available to execute this action
+    requiredCommands='dpkg-deb fakeroot'
+    
+    # Version that the package will receive
+    version='0.1_all'
+    
+    directory="build_packages/DEB/progressia-$version"
+    
+    # .deb control file that must be present
+    configurationFile="$directory/DEBIAN/control"
+    
+    outputFile="build_packages/DEB/progressia-$version.deb"
 
-for items in $lst
-do
-  cmd=$(grep "\ $items\ " ls.tmp)
-  if [ $? == 0 ]
-    then
-      echo "$items installed!"
-      echo "Building..."
+    echo "Checking environment to build Debian package"
+    
+    for item in $requiredCommands; do
+        if command -v "$item" &> /dev/null; then
+            echo "- $item found"
+        else
+            echoerr "Command $item not found, cannot package"
+            exit 100
+        fi
+    done
+    
+    if ! [ -r "$configurationFile" ]; then
+        echoerr "$configurationFile is missing or not readable, cannot package"
+        exit 101
     else
-      echo "Package $items not found! Please install $items."
-      rm ls.tmp
-      exit 1
-  fi
-done
-rm ls.tmp
+        echo "- $configurationFile is present and readable"
+    fi
+    
+    echo "Environment OK; packaging Debian package"
+    exitCode=0
+    
+    {
+        user=`whoami`
+        homeDir="$directory/home/$user/Progressia/"
+        
+        mkdir -p "$homeDir"                                         &&
+        cp -r 'build/libs/lib'            "$homeDir/lib"            &&
+        cp    'build/libs/Progressia.jar' "$homeDir/Progressia.jar" &&
+        echo "------ DPKG-DEB ------"                               &&
+        fakeroot dpkg-deb --build "$directory"                      &&
+        echo "---- DPKG-DEB END ----"                               &&
+        mv "$outputFile" build_packages
+    } || {
+        echoerr "Could not create Debian package"
+        exitCode=1
+    }
+    
+    {
+        if [ -d "$homeDir" ]; then
+            rm -r "$homeDir"
+        fi
+        echo "Cleaned up"
+    } || {
+        echoerr "Could not clean up after packaging Debian package"
+        exitCode=2
+    }
+}
 
-cd build_packages/DEB/progressia-0.1_all/
-mkdir -p home/$user/Progressia
+buildWindowsInstaller() {
 
-cd ../../..
+    # Commands that must be available to execute this action
+    requiredCommands='makensis'
+    
+    # NSIS configuration file that must be present
+    configurationFile='build_packages/NSIS/ProgressiaInstaller.nsi'
+    
+    # File that will be output
+    outputFile='build_packages/NSIS/ProgressiaInstaller.exe'
 
-cp -r build/libs/lib build_packages/DEB/progressia-0.1_all/home/$user/Progressia/
-cp build/libs/Progressia.jar build_packages/DEB/progressia-0.1_all/home/$user/Progressia/
-cp -r build/libs/lib build_packages/NSIS
-cp build/libs/Progressia.jar build_packages/NSIS
+    echo "Checking environment to build Windows installer"
+    
+    for item in $requiredCommands; do
+        if command -v "$item" &> /dev/null; then
+            echo "- $item found"
+        else
+            echoerr "Command $item not found, cannot build"
+            exit 100
+        fi
+    done
+    
+    if ! [ -r "$configurationFile" ]; then
+        echoerr "$configurationFile is missing or not readable, cannot build"
+        exit 101
+    else
+        echo "- $configurationFile is present and readable"
+    fi
+    
+    echo "Environment OK; building Windows installer"
+    exitCode=0
+    
+    {
+        cp -r 'build/libs/lib'            'build_packages/NSIS/lib'            &&
+        cp    'build/libs/Progressia.jar' 'build_packages/NSIS/Progressia.jar' &&
+        echo "------ NSIS ------"                                              &&
+        makensis "$configurationFile"                                          &&
+        echo "---- NSIS END ----"                                              &&
+        mv "$outputFile" build_packages
+    } || {
+        echoerr "Could not build Windows installer"
+        exitCode=1
+    }
+    
+    {
+        if [ -d 'build_packages/NSIS/lib' ]; then
+            rm -r 'build_packages/NSIS/lib'
+        fi
+        if [ -e 'build_packages/NSIS/Progressia.jar' ]; then
+            rm 'build_packages/NSIS/Progressia.jar'
+        fi
+        echo "Cleaned up"
+    } || {
+        echoerr "Could not clean up after building Windows installer"
+        exitCode=2
+    }
+    
+    exit "$exitCode"
+}
 
-makensis build_packages/NSIS/ProgressiaInstaller.nsi
-mv build_packages/NSIS/ProgressiaInstaller.exe build_packages/Progressia.exe
-fakeroot dpkg-deb --build build_packages/DEB/progressia-0.1_all
-mv build_packages/DEB/progressia-0.1_all.deb build_packages/progressia-0.1_all.deb
-echo "Build done!"
+printUsage() {
+    echoerr "Usage: $0 TARGET"
+    echoerr "    where TARGET is 'debian' or 'windows'"
+}
+
+if [ -n "$2" ]; then
+    echoerr "Too many arguments."
+    printUsage
+    exit 202
+fi
+
+case "$1" in
+"debian")
+    buildDebianPackage
+    ;;
+"windows")
+    buildWindowsInstaller
+    ;;
+"")
+    echoerr "No action specified"
+    printUsage
+    exit 200
+    ;;
+"--help" | "-help" | "help" | "?")
+    printUsage
+    ;;
+*)
+    echoerr "Unknown action '$1'"
+    printUsage
+    exit 201
+    ;;
+esac