.shellscriptsrc

#!/bin/bash
: # This script is to be sourced

: ##########################################################
: ##### Lookup BFD Repository Directory

command_exists() { command -v "$@" >/dev/null 2>&1; }
LC_ALL=C
export LC_ALL
: # by using a HEREDOC, we are disabling shellcheck and shfmt
set +e
read -r -d '' LOOKUP_SHELL_FUNCTION <<-'EOF'
	lookup_shell() {
		export whichshell
		case ${ZSH_VERSION:-} in *.*) { whichshell=zsh;return;};;esac
		case ${BASH_VERSION:-} in *.*) { whichshell=bash;return;};;esac
		case "$VERSION" in *zsh*) { whichshell=zsh;return;};;esac
		case "$SH_VERSION" in *PD*) { whichshell=sh;return;};;esac
		case "$KSH_VERSION" in *PD*|*MIRBSD*) { whichshell=ksh;return;};;esac
	}
EOF
set -e
eval "${LOOKUP_SHELL_FUNCTION}"
lookup_shell

if [[ -z ${BFD_REPOSITORY:-} ]]; then
  set +e
  read -r -d '' GET_LIB_DIR_IN_ZSH <<-'EOF'
	0="${${ZERO:-${0:#$ZSH_ARGZERO}}:-${(%):-%N}}"
	0="${${(M)0:#/*}:-$PWD/$0}"
	BFD_REPOSITORY="${0:a:h}"
	BFD_REPOSITORY="$(cd "${BFD_REPOSITORY}" > /dev/null 2>&1 && pwd -P)"
EOF
  set -e
  # shellcheck enable=all
  if command_exists zsh && [[ ${whichshell} == "zsh" ]]; then
    # We are running in zsh
    eval "${GET_LIB_DIR_IN_ZSH}"
  else
    # we are running in bash/sh
    BFD_REPOSITORY="$(cd "$(dirname -- "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd -P)"
  fi
fi

# End Lookup BFD Repository Directory
##########################################################
bash_or_zsh() {
  { [[ ${whichshell} == "zsh" ]] && echo "zsh"; } || echo "bash"
}

: "${SCRIPTS_LIB_DIR:=${BFD_REPOSITORY}/lib}"

eval "$(source "${SCRIPTS_LIB_DIR}/bootstrap.sh")"