wine_entrypoint.bsh

#!/usr/bin/env bash

set -eu

: ${USER_ID=1000}
: ${GROUP_ID="${USER_ID}"}

groupadd -og "${GROUP_ID}" user
useradd -mou "${USER_ID}" -g "${GROUP_ID}" user

# The FAST_WINE_DIR variable can disable the correct ownership behavior
if [ -n "${FAST_WINE_DIR+set}" ]; then
  : ${WINEPREFIX=/home/wine}
  export WINEPREFIX
else
  mkdir -p /home/.user_wine
  # Handle docker often make a volume owned by root by default
  chown user:user /home/.user_wine
  # Link the dir in instead of mounting, cause then useradd won't populate skel
  ln -s /home/.user_wine /home/user/.wine

  # This would add about 6 seconds to start time
  if [ ! -d "/home/user/.wine/drive_c" ]; then
    echo "Initializing .wine directory..."
    (
      shopt -s dotglob;

      # A copy is faster than a chown, due to how snapshots work. At least this
      # is true on brtfs
      gosu user cp -ra /home/wine/* /home/user/.wine/
    )
    echo "Done!"
  else
    if [ "$(stat -c %U /home/user/.wine/drive_c)" != "user" ]; then
      echo "The wine directory does not appear to be owned by you."
      echo "You probably changed your USER_ID and didn't to remove the wine volume"
      echo "Re-chowning now... (This may take a while)"
      chown -R user:user /home/user/.wine/
      echo "Done"
    fi
  fi
fi

while [ "${1-unset}" == "--add" ]; do
  # Remove the --add flag
  shift 1
  # Execute whatever the additional entrypoint is, with all the arguments
  "${@}"
  # Remove the entrypoint arguments itself. This is done so that the additional
  #  entrypoints can do one of three things:
  # 1) Non zero exit, in which case this script would be over
  # 2) Use the additional arguments for whatever means, and then continue
  # 3) Not use and of the other extra, and not exit, in which case the rest of
  #    this entrypoint continues.
  shift 1
done

if [ "${1-unset}" = "root" ]; then
  # Remove the "root" marker
  shift 1
  exec bash ${@+"${@}"}
else
  if [ -n "${DISPLAY:+set}" ]; then
    if [ "${MSYS2_WINE_WORKAROUND}" = "0" ]; then
      # Start wine
      gosu user wine 'C:\msys64\usr\bin\mintty.exe' /usr/bin/bash --login ${@+"${@}"}
    elif [ "${MSYS2_WINE_WORKAROUND}" = "1" ]; then
      gosu user wineconsole cmd /c 'C:\msys64\usr\bin\mintty.exe' /usr/bin/bash --login ${@+"${@}"} \> nul
    fi
    # Wait for it to end
    gosu user wineserver --wait
  else
    # There's a random bug I observed where bash in wineconsole using ncurses
    # doesn't work on the first try, but does on the second. So make a dummy
    # call to ncurses
    gosu user wineconsole cmd /c :

    gosu user wineconsole 'C:\msys64\usr\bin\bash.exe' --login ${@+"${@}"}
  fi
fi