Add scripts and files for AppImage packaging in dist folder

dist/appimage/AppRun-hook.sh

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+# try to make Qt apps more "native looking" on Gtk-based desktops, if possible
+# see https://github.com/AppImage/AppImageKit/issues/977#issue-462374883
+case "${XDG_CURRENT_DESKTOP}" in
+    *GNOME*|*gnome*|*X-Cinnamon*|*XFCE*)
+        export QT_QPA_PLATFORMTHEME=gtk3
+        ;;
+esac
+export GDK_BACKEND=x11
+export QT_QPA_PLATFORM=xcb

dist/appimage/AppRun.sh

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+#! /usr/bin/env bash
+
+# make sure errors in sourced scripts will cause this script to stop
+set -e
+
+this_dir="$(readlink -f "$(dirname "$0")")"
+
+source "$this_dir"/apprun-hooks/"AppRun-hook"
+
+exec "$this_dir"/AppRun.wrapped "$@"

dist/appimage/AppRun.wrapped.sh

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+#!/bin/sh -e
+
+appdir=$(readlink -f ${APPDIR:-$(dirname "$0")})
+
+desktopfile=$(ls -1 "$appdir"/*.desktop | head -n1)
+
+if [ ! -f "$desktopfile" ]; then
+    echo "No desktop file found!"
+    exit 1
+fi
+
+library_path=""
+library_type=
+
+binary="$appdir"/usr/bin/$(sed -n 's|^Exec=||p' "$desktopfile" | cut -d' ' -f1)
+
+for lib_tuple in libstdc++.so.6:'^GLIBCXX_[0-9]' libgcc_s.so.1:'^GCC_[0-9]'; do
+    lib_filename=$(echo "$lib_tuple" | cut -d: -f1)
+    version_prefix=$(echo "$lib_tuple" | cut -d: -f2)
+    lib_dir="$appdir"/usr/optional/"$lib_filename"/
+    lib_path="$lib_dir"/"$lib_filename"
+    if [ -e "$lib_path" ]; then
+      lib=$(PATH="/sbin:$PATH" ldconfig -p | grep "$lib_filename" | awk 'NR==1 {print $NF}')
+      sym_sys=$(tr '\0' '\n' < "$lib" | grep -e "$version_prefix" | sort --version-sort | tail -n1)
+      sym_app=$(tr '\0' '\n' < "$lib_path" | grep -e "$version_prefix" | sort --version-sort | tail -n1)
+      if [ z$(printf "${sym_sys}\n${sym_app}" | sort --version-sort | tail -n1) != z"$sym_sys" ]; then
+        export library_path="$lib_dir"/:"$library_path"
+      fi
+    fi
+done
+
+export LD_LIBRARY_PATH="$library_path:$LD_LIBRARY_PATH"
+
+if [ -n "$cxxpath" ] || [ -n "$gccpath" ]; then
+  if [ -e "$appdir"/usr/optional/exec.so ]; then
+    export LD_PRELOAD="$appdir"/usr/optional/exec.so:"$LD_PRELOAD"
+  fi
+fi
+
+#echo ">>>>> $LD_LIBRARY_PATH"
+#echo ">>>>> $LD_PRELOAD"
+
+exec "$binary" "$@"

dist/appimage/deploy-linux.sh

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+#!/bin/bash
+# [DEPLOY_QT=1] deploy-linux.sh <executable>
+#   (Simplified) bash re-implementation of [linuxdeploy](https://github.com/linuxdeploy).
+#   Reads [executable] and copies required libraries to [AppDir]/usr/lib
+#   Copies the desktop and svg icon to [AppDir]
+#   Respects the AppImage excludelist
+#
+# Unlike linuxdeploy, this does not:
+# - Copy any icon other than svg (too lazy to add that without a test case)
+# - Do any verification on the desktop file
+# - Run any linuxdeploy plugins
+# - *Probably other things I didn't know linuxdeploy can do*
+#
+#~ set -x
+export _PREFIX="/usr"
+export _LIB_DIRS="lib64 lib"
+export _QT_PLUGIN_PATH="${_PREFIX}/lib64/qt6/plugins"
+export _EXCLUDES="ld-linux.so.2 \
+ld-linux-x86-64.so.2 \
+ld-linux-aarch64.so.1 \
+libasound.so.2 \
+libc.so.6 \
+libdl.so.2 \
+libgcc_s.so.1 \
+libm.so.6 \
+libpthread.so.0 \
+librt.so.1 \
+libstdc++.so.6 \
+libEGL.so.1 \
+libfreetype.so.6 \
+libGL.so.1 \
+libfribidi.so.0 \
+libGLX.so.0 \
+libgbm.so.1 \
+libGLdispatch.so.0 \
+libgdk-3.so.0 \
+libICE.so.6 \
+libgdk_pixbuf-2.0.so.0 \
+libOpenGL.so.0 \
+libgio-2.0.so.0 \
+libQt6EglFSDeviceIntegration.so.6 \
+libgpg-error.so.0 \
+libQt6OpenGL.so.6 \
+libgtk-3.so.0 \
+libSM.so.6 \
+libharfbuzz.so.0 \
+libX11.so.6 \
+libXcomposite.so.1 \
+libXcursor.so.1 \
+libXdamage.so.1 \
+libinput.so.10 \
+libXext.so.6 \
+libmount.so.1 \
+libXfixes.so.3 \
+libmtdev.so.1 \
+libXi.so.6 \
+libpango-1.0.so.0 \
+libXinerama.so.1 \
+libpangocairo-1.0.so.0 \
+libXrandr.so.2 \
+libpangoft2-1.0.so.0 \
+libXrender.so.1 \
+libpcre2-8.so.0 \
+libatk-1.0.so.0 \
+libpixman-1.so.0 \
+libatk-bridge-2.0.so.0 \
+libresolv.so.2 \
+libatspi.so.0 \
+libselinux.so.1 \
+libblkid.so.1 \
+libcairo-gobject.so.2 \
+libuuid.so.1 \
+libcairo.so.2 \
+libthai.so.0 \
+libcom_err.so.2 \
+libts.so.0 \
+libdatrie.so.1 \
+libwacom.so.2 \
+libdrm.so.2 \
+libxcb-icccm.so.4 \
+libepoxy.so.0 \
+libxcb-randr.so.0 \
+libevdev.so.2 \
+libxcb.so.1 \
+libexpat.so.1 \
+libfontconfig.so.1 \
+libz.so.1"
+
+export _EXECUTABLE="$1"
+
+# Get possible system library paths
+export _SYSTEM_PATHS=$(echo -n $PATH | tr ":" " ")
+export _SEARCH_PATHS=
+for i in ${_LIB_DIRS}; do
+  for j in ${_SYSTEM_PATHS}; do
+    _TRY_PATH="$(readlink -e "$j/../$i" || true)"
+    if [[ -n "${_TRY_PATH}" ]]; then
+      _SEARCH_PATHS="${_SEARCH_PATHS} ${_TRY_PATH}"
+    fi
+  done
+done
+_SEARCH_PATHS="${_SEARCH_PATHS} $(patchelf --print-rpath $_EXECUTABLE | tr ':' ' ')"
+# Get a list of only unique ones
+_SEARCH_PATHS=$(echo -n "${_SEARCH_PATHS}" | sed 's/ /\n/g' | sort -u)
+
+# find_library [library]
+#  Finds the full path of partial name [library] in _SEARCH_PATHS
+#  This is a time-consuming function.
+_NOT_FOUND=""
+function find_library {
+  local _PATH=""
+  for i in ${_SEARCH_PATHS}; do
+    _PATH=$(find $i -regex ".*$(echo -n $1 | tr '+' '.')" -print -quit)
+    if [ "$_PATH" != "" ]; then
+      break
+    fi
+  done
+  if [ "$_PATH" != "" ]; then
+    echo -n $(readlink -e $_PATH)
+  fi
+}
+
+# get_dep_names [object]
+#  Returns a space-separated list of all required libraries needed by [object].
+function get_dep_names {
+  echo -n $(patchelf --print-needed $1)
+}
+
+# get_deps [object] [library_path]
+#  Finds and installs all libraries required by [object] to [library_path].
+#  This is a recursive function that also depends on find_library.
+function get_deps {
+  local _DEST=$2
+  for i in $(get_dep_names $1); do
+    _EXCL=`echo "$_EXCLUDES" | tr ' ' '\n' | grep $i`
+    if [ "$_EXCL" != "" ]; then
+      #>&2 echo "$i is on the exclude list... skipping"
+      continue
+    fi
+    if [ -f $_DEST/$i ]; then
+      continue
+    fi
+    local _LIB=$(find_library $i)
+    if [ -z $_LIB ]; then
+      echo -n "$i:"
+      continue
+    fi
+    >&2 cp -v $_LIB $_DEST/$i &
+    get_deps $_LIB $_DEST
+  done
+}
+
+export -f get_deps
+export -f get_dep_names
+export -f find_library
+
+_ERROR=0
+if [ -z "$_EXECUTABLE" ]; then
+  _ERROR=1
+fi
+
+if [ "$_ERROR" -eq 1 ]; then
+  >&2 echo "usage: $0 <executable> [AppDir]"
+  exit 1
+fi
+
+LIB_DIR="$(readlink -m $(dirname $_EXECUTABLE)/../lib)"
+mkdir -p $LIB_DIR
+_NOT_FOUND=$(get_deps $_EXECUTABLE $LIB_DIR)
+
+if [ "${DEPLOY_QT}" == "1" ]; then
+  # Find Qt path from search paths
+  for i in ${_SEARCH_PATHS}; do
+    _QT_CORE_LIB=$(find ${i} -type f -regex '.*/libQt6Core\.so.*' | head -n 1)
+    if [ -n "${_QT_CORE_LIB}" ]; then
+      _QT_PATH=$(dirname ${_QT_CORE_LIB})/../
+      break
+    fi
+  done
+  
+  _QT_PLUGIN_PATH=$(readlink -e $(find ${_QT_PATH} -type d -regex '.*/plugins/platforms' | head -n 1)/../)
+
+  for i in audio bearer imageformats mediaservice platforminputcontexts platformthemes xcbglintegrations platforms wayland-decoration-client wayland-graphics-integration-client wayland-graphics-integration-server wayland-shell-integration; do
+    mkdir -p ${LIB_DIR}/../plugins/${i}
+    cp -rnv ${_QT_PLUGIN_PATH}/${i}/*.so ${LIB_DIR}/../plugins/${i}
+    find ${LIB_DIR}/../plugins/ -type f -regex '.*\.so' -exec patchelf --set-rpath '$ORIGIN/../../lib:$ORIGIN' {} ';'
+    # Find any remaining libraries needed for Qt libraries
+    _NOT_FOUND+=$(find ${LIB_DIR}/../plugins/${i} -type f -exec bash -c "get_deps {} $LIB_DIR" ';')
+  done
+  
+  _QT_CONF=${LIB_DIR}/../bin/qt.conf
+  echo "[Paths]" > ${_QT_CONF}
+  echo "Prefix = ../" >> ${_QT_CONF}
+  echo "Plugins = plugins" >> ${_QT_CONF}
+  echo "Imports = qml" >> ${_QT_CONF}
+  echo "Qml2Imports = qml" >> ${_QT_CONF}
+fi
+
+# Fix rpath of libraries and executable so they can find the packaged libraries
+find ${LIB_DIR} -type f -exec patchelf --set-rpath '$ORIGIN' {} ';'
+patchelf --set-rpath '$ORIGIN/../lib' $_EXECUTABLE
+
+_APPDIR=$2
+cd ${_APPDIR}
+
+cp -nvs $(find -type f -regex '.*/icons/.*\.svg' || head -n 1) ./
+cp -nvs $(find -type f -regex '.*/applications/.*\.desktop' || head -n 1) ./
+
+if [ "${_NOT_FOUND}" != "" ]; then
+  >&2 echo "WARNING: failed to find the following libraries:"
+  >&2 echo "$(echo -n $_NOT_FOUND | tr ':' '\n' | sort -u)"
+fi

dist/appimage/package-appimage-arm64.sh

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+mv ./linux-arm64-appimage/AppDir.7z ./AppDir.7z
+7z x AppDir.7z
+
+# Seperate AppDir for all Citra executables
+cp -r AppDir AppDir-qt
+cp -r AppDir AppDir-room
+
+rm -vf AppDir/usr/bin/citra-qt AppDir/usr/bin/citra-room
+rm -vf AppDir-room/usr/bin/citra AppDir-room/usr/bin/citra-qt
+rm -vf AppDir-qt/usr/bin/citra AppDir-qt/usr/bin/citra-room
+
+mv ./AppDir/usr/share/applications/citra-qt.desktop ./AppDir/usr/share/applications/citra.desktop
+mv ./AppDir-room/usr/share/applications/citra-qt.desktop ./AppDir-room/usr/share/applications/citra-room.desktop
+
+# Download appimagetool, needed to build an AppImage
+wget https://github.com/AppImage/appimagetool/releases/download/continuous/appimagetool-x86_64.AppImage
+
+# Set executable bit
+chmod a+x appimagetool-x86_64.AppImage
+
+# Workaround for https://github.com/AppImage/AppImageKit/issues/828
+export APPIMAGE_EXTRACT_AND_RUN=1
+
+# Deploy Citra's needed dependencies
+DEPLOY_QT=0 ./dist/appimage/deploy-linux.sh AppDir/usr/bin/citra AppDir
+DEPLOY_QT=0 ./dist/appimage/deploy-linux.sh AppDir-room/usr/bin/citra-room AppDir-room
+DEPLOY_QT=1 ./dist/appimage/deploy-linux.sh AppDir-qt/usr/bin/citra-qt AppDir-qt
+
+mkdir AppDir/apprun-hooks
+mkdir -p AppDir/usr/optional
+mkdir -p AppDir/usr/optional/libstdc++
+mkdir -p AppDir/usr/optional/libgcc_s
+
+mkdir AppDir-room/apprun-hooks
+mkdir -p AppDir-room/usr/optional
+mkdir -p AppDir-room/usr/optional/libstdc++
+mkdir -p AppDir-room/usr/optional/libgcc_s
+
+mkdir AppDir-qt/apprun-hooks
+mkdir -p AppDir-qt/usr/optional
+mkdir -p AppDir-qt/usr/optional/libstdc++
+mkdir -p AppDir-qt/usr/optional/libgcc_s
+
+cp ./dist/appimage/AppRun.sh AppDir/AppRun
+cp ./dist/appimage/AppRun.wrapped.sh AppDir/AppRun.wrapped
+cp ./dist/appimage/AppRun-hook.sh AppDir/apprun-hooks/AppRun-hook
+cp ./dist/appimage/exec-aarch64.so AppDir/usr/optional/exec.so
+cp --dereference /usr/lib/aarch64-linux-gnu/libstdc++.so.6 AppDir/usr/optional/libstdc++/libstdc++.so.6
+cp --dereference /lib/aarch64-linux-gnu/libgcc_s.so.1 AppDir/usr/optional/libgcc_s/libgcc_s.so.1
+
+cp ./dist/appimage/AppRun.sh AppDir-room/AppRun
+cp ./dist/appimage/AppRun.wrapped.sh AppDir-room/AppRun.wrapped
+cp ./dist/appimage/AppRun-hook.sh AppDir-room/apprun-hooks/AppRun-hook
+cp ./dist/appimage/exec-aarch64.so AppDir-room/usr/optional/exec.so
+cp --dereference /usr/lib/aarch64-linux-gnu/libstdc++.so.6 AppDir-room/usr/optional/libstdc++/libstdc++.so.6
+cp --dereference /lib/aarch64-linux-gnu/libgcc_s.so.1 AppDir-room/usr/optional/libgcc_s/libgcc_s.so.1
+
+cp ./dist/appimage/AppRun.sh AppDir-qt/AppRun
+cp ./dist/appimage/AppRun.wrapped.sh AppDir-qt/AppRun.wrapped
+cp ./dist/appimage/AppRun-hook.sh AppDir-qt/apprun-hooks/AppRun-hook
+cp ./dist/appimage/exec-aarch64.so AppDir-qt/usr/optional/exec.so
+cp --dereference /usr/lib/aarch64-linux-gnu/libstdc++.so.6 AppDir-qt/usr/optional/libstdc++/libstdc++.so.6
+cp --dereference /lib/aarch64-linux-gnu/libgcc_s.so.1 AppDir-qt/usr/optional/libgcc_s/libgcc_s.so.1
+
+# Build an AppImage
+ARCH=aarch64 ./appimagetool-x86_64.AppImage AppDir citra.AppImage
+ARCH=aarch64 ./appimagetool-x86_64.AppImage AppDir-room citra-room.AppImage
+ARCH=aarch64 ./appimagetool-x86_64.AppImage AppDir-qt citra-qt.AppImage
+
+mkdir -p ./build/bundle
+mv citra.AppImage ./build/bundle
+mv citra-room.AppImage ./build/bundle
+mv citra-qt.AppImage ./build/bundle
+
+mkdir ./build/bundle/dist
+cp ./dist/icon.png ./build/bundle/dist/citra.png
+cp ./license.txt ./build/bundle
+cp ./README.md ./build/bundle
+cp -r ./dist/scripting ./build/bundle/scripting