add script for install with system-wide proton

.SRCINFO

@@ -22,9 +22,11 @@ pkgbase = dxvk-gplasync-bin
 	source = https://raw.githubusercontent.com/doitsujin/dxvk/master/LICENSE
 	source = dxvk-gplasync-env.conf
 	source = setup_dxvk.sh
+	source = setup_dxvk_proton.sh
 	sha256sums = 1e1f6db95f4a7f02d372012f4a723a161d732a39b3b3efcf8159e03cdff2dc1e
 	sha256sums = 03ca4af84f5cd28cef3ed3f1ef4d17996992d35ccdbe82b29cc020ca02c16f3d
 	sha256sums = 2bce3bf5dc5a3c7312bbaae96daf82e0fe6c370e96017ce5a0c49f40901866e3
 	sha256sums = 0f688815530ab5e8cc89b9b45d9b1d66cd8cd5a7770fb8249339af555a30dfe7
+	sha256sums = 1bf20ca5901aaa43d10c794b28d22e3cf63a5c313c8e1e553da9d2780fd4ae85
 
 pkgname = dxvk-gplasync-bin

.gitignore

@@ -2,5 +2,6 @@
 !.gitignore
 !.SRCINFO
 !setup_dxvk.sh
+!setup_dxvk_proton.sh
 !dxvk-gplasync-env.conf
-!PKGBUILD
+!PKGBUILD

PKGBUILD

@@ -17,14 +17,15 @@ options=(!strip !buildflags staticlibs)
 source=("$url/-/raw/main/releases/dxvk-gplasync-v$pkgver-$pkgrel.tar.gz"
         'https://raw.githubusercontent.com/doitsujin/dxvk/master/LICENSE'
         'dxvk-gplasync-env.conf'
-        'setup_dxvk.sh')
+        setup_dxvk{,_proton}.sh)
 sha256sums=('1e1f6db95f4a7f02d372012f4a723a161d732a39b3b3efcf8159e03cdff2dc1e'
             '03ca4af84f5cd28cef3ed3f1ef4d17996992d35ccdbe82b29cc020ca02c16f3d'
             '2bce3bf5dc5a3c7312bbaae96daf82e0fe6c370e96017ce5a0c49f40901866e3'
-            '0f688815530ab5e8cc89b9b45d9b1d66cd8cd5a7770fb8249339af555a30dfe7')
+            '0f688815530ab5e8cc89b9b45d9b1d66cd8cd5a7770fb8249339af555a30dfe7'
+            '1bf20ca5901aaa43d10c794b28d22e3cf63a5c313c8e1e553da9d2780fd4ae85')
 
 package() {
-  cd "dxvk-gplasync-v$pkgver-$pkgrel"
+  cd "dxvk-gplasync-v$pkgver-$pkgrel" || exit 1
 
   install -dm755 "$pkgdir/usr/share"
   cp -dr --preserve=mode,timestamp . "$pkgdir/usr/share/dxvk"
@@ -33,8 +34,10 @@ package() {
   install -Dm644 "$srcdir/LICENSE" "$pkgdir/usr/share/licenses/dxvk-gplasync/LICENSE"
 
   install -Dm 755 "$srcdir/setup_dxvk.sh" "$pkgdir/usr/share/dxvk/setup_dxvk.sh"
+  install -Dm 755 "$srcdir/setup_dxvk_proton.sh" "$pkgdir/usr/share/dxvk/setup_dxvk_proton.sh"
   install -dm755 "$pkgdir/usr/bin"
   ln -s /usr/share/dxvk/setup_dxvk.sh "$pkgdir/usr/bin/setup_dxvk"
+  ln -s /usr/share/dxvk/setup_dxvk_proton.sh "$pkgdir/usr/bin/setup_dxvk_proton"
 
   install -dm755 "$pkgdir/etc/environment.d"
   install -Dm644 "$srcdir/dxvk-gplasync-env.conf" "$pkgdir/etc/environment.d/dxvk-gplasync-env.conf"

setup_dxvk_proton.sh

@@ -0,0 +1,145 @@
+#!/usr/bin/env bash
+
+basedir="$(dirname "$(readlink -f "$0")")"
+dlls=(dxgi.dll d3d9.dll d3d10core.dll d3d11.dll)
+dxvk_lib32_path="$basedir/x32"
+dxvk_lib64_path="$basedir/x64"
+
+proton_dxvkpath=(/usr/share/steam/compatibilitytools.d/**/files/{lib,lib64}/wine/dxvk)
+
+function pe64_or_not {
+    if ! exepa=$(realpath -es "$1" 2>/dev/null); then
+        echo "Path '$1' not exists"
+        exit 20
+    else
+        case $(file -L "$exepa") in
+            *PE32*x86-64*)
+                echo 64 ;;
+            *PE32*80386*)
+                return ;;
+            *)
+                echo "Not a supported executable"
+                exit 21 ;;
+        esac
+    fi
+}
+
+function InstallFile {
+  path=$1
+  file_name=$2
+
+  dstfile="$path/$file_name"
+
+  if [[ $(pe64_or_not "$dstfile") = 64 ]]; then
+    srcfile="$dxvk_lib64_path/$file_name"
+  else
+    srcfile="$dxvk_lib32_path/$file_name"
+  fi
+
+  if ! [ -f "$(realpath "${dstfile}")" ]; then
+    echo "${dstfile}: File not found. Skipping." >&2
+    return 1
+  fi
+
+  if ! [[ -f $(realpath "${dstfile}.old") ]]; then
+    mv "$dstfile" "${dstfile}.old"
+    echo "${dstfile}: Backed up."
+  else
+    rm -f "$dstfile"
+  fi
+
+  $file_cmd "$srcfile" "$dstfile"
+}
+
+function RestoreFile {
+  path=$1
+  file_name=$2
+
+  dstfile="$path/$file_name"
+
+  if ! [[ -f $(realpath "$dstfile") ]]; then
+    echo "${dstfile}: File not found. Skipping." >&2
+    return 1
+  elif ! [[ -f $(realpath "${dstfile}.old") ]]; then
+    echo "${dstfile}: File backup not found. Skipping." >&2
+    return 1
+  fi
+
+  mv -f "${dstfile}.old" "$dstfile"
+  echo "${dstfile}: Restored."
+}
+
+if [ "$(id -u)" != "0" ]; then
+        echo "You need run this script as root!"
+        exit 1
+fi
+
+# figure out which action to perform
+action="$1"
+
+case "$action" in
+install)
+  ;;
+restore)
+  ;;
+*)
+  echo "Unrecognized action: $action"
+  echo "Usage: $0 [install|restore] [--symlink]"
+  exit 1
+esac
+
+# process arguments
+shift
+
+file_cmd="cp -v --reflink=auto"
+
+while (($# > 0)); do
+  case "$1" in
+  "--symlink")
+    file_cmd="ln -s -v"
+    ;;
+  esac
+  shift
+done
+
+for dir in "${proton_dxvkpath[@]}"; do
+  if [[ -d $dir ]]; then
+    dxvkpath+=("$dir")
+  fi
+done
+
+if [[ -s ${dxvkpath[1]} ]]; then
+  printf '%s\n' "${dxvkpath[@]}"
+  echo 'Do you wish to change the above dxvk?'
+  PS3="Enter a number: "
+  select yn in "Yes" "No"; do
+    case $yn in
+      Yes) echo; break;;
+      No ) exit;;
+      *  ) echo -e '\nInvalid input'; exit 1;;
+    esac
+  done
+else
+    echo 'No proton installed in "/usr/share/steam/compatibilitytools.d"'
+    exit 1
+fi
+
+install() {
+  file_name=$1
+
+  for path in "${dxvkpath[@]}"; do
+    InstallFile "$path" "$file_name"
+  done
+}
+
+restore() {
+  file_name=$1
+  
+  for path in "${dxvkpath[@]}"; do
+    RestoreFile "$path" "$file_name"
+  done
+}
+
+for dll in "${dlls[@]}"; do
+  $action "$dll"
+done