tini

#!/usr/bin/env sh

set -eu

# If this script ever gives you a problem, just change your entrypoint to _tini
# and report the issue

# If running in singularity
if [ -d "/.singularity.d" ]; then
  while [ "${#}" -gt "0" ]; do
    case ${1} in
      # Signifies the rest is the command, so break
      --)
        shift 1
        break
        ;;
      # Args that take one arg
      -e|-p)
        shift 2
        ;;
      # No extra args (-e/-p are merged into one arg)
      -l|--version|-v|-vv|-vvv|-s|-w|-g|-e*|-p*)
        shift 1
        ;;
      *) # No match must mean the real command
        break
        ;;
    esac
  done
  exec ${@+"${@}"}
else
  if [ -e "/usr/local/bin/_tini" ]; then
    exec /usr/local/bin/_tini ${@+"${@}"}
  else
    exec "$(dirname "${0}")/_tini" ${@+"${@}"}
  fi
fi