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# This is the public domain getoptions shell library. It also forms a usage
# function.
# URL: https://github.com/ko1nksm/getoptions (v2.0.1)
# License: Creative Commons Zero v1.0 Universal
# shellcheck disable=2016
getoptions() {
_error='' _on=1 _off='' _export='' _plus='' _mode='' _alt='' _rest=''
_opts='' _help='' _indent='' _init=@empty IFS=' '
for i in 0 1 2 3 4 5; do
eval "_$i() { echo \"$_indent\$@\"; }"
_indent="$_indent "
done
quote() {
q="$2'" r=''
while [ "$q" ]; do r="$r${q%%\'*}'\''" && q=${q#*\'}; done
q="'${r%????}'" && q=${q#\'\'} && q=${q%\'\'}
eval "$1=\${q:-\"''\"}"
}
code() {
[ "${1#:}" = "$1" ] && c=3 || c=4
eval "[ ! \${$c:+x} ] || $2 \"\$$c\""
}
invoke() { eval '"_$@"'; }
prehook() { invoke "$@"; }
for i in setup flag param option disp msg; do
eval "$i() { prehook $i \"\$@\"; }"
done
args() {
on=$_on off=$_off export=$_export init=$_init _hasarg=$1
while [ $# -gt 2 ] && [ "$3" != '--' ] && shift; do
case $2 in
-?) [ "$_hasarg" ] || _opts="$_opts${2#-}" ;;
+*) _plus=1 ;;
[!-+]*) eval "${2%%:*}=\${2#*:}"
esac
done
}
defvar() {
case $init in
@none) : ;;
@export) code "$1" _0 "export $1" ;;
@empty) code "$1" _0 "${export:+export }$1=''" ;;
@unset) code "$1" _0 "unset $1 ||:" "unset OPTARG ||:; ${1#:}" ;;
*)
case $init in @*) eval "init=\"=\${${init#@}}\""; esac
case $init in [!=]*) _0 "$init"; return 0; esac
quote init "${init#=}"
code "$1" _0 "${export:+export }$1=$init" "OPTARG=$init; ${1#:}"
esac
}
_setup() {
[ $# -gt 0 ] && { [ "$1" ] && _rest=$1; shift; }
for i; do [ "$i" = '--' ] && break; eval "_${i%%:*}=\${i#*:}"; done
}
_flag() { args : "$@"; defvar "$@"; }
_param() { args '' "$@"; defvar "$@"; }
_option() { args '' "$@"; defvar "$@"; }
_disp() { args : "$@"; }
_msg() { args : _ "$@"; }
"$@"
_0 "${_rest:?}=''"
args() {
sw='' validate='' pattern='' counter='' on=$_on off=$_off export=$_export
while [ $# -gt 1 ] && [ "$2" != '--' ] && shift; do
case $1 in
--\{no-\}*) sw="$sw${sw:+ | }--${1#--?no-?} | --no-${1#--?no-?}" ;;
[-+]? | --*) sw="$sw${sw:+ | }$1" ;;
*) eval "${1%%:*}=\"\${1#*:}\""
esac
done
}
setup() { :; }
_flag() {
args "$@"
quote on "$on" && quote off "$off"
[ "$counter" ] && on=1 off=-1 v="\$((\${$1:-0}+\${OPTARG:-0}))" || v=''
_3 "$sw)"
_4 '[ "${OPTARG:-}" ] && OPTARG=${OPTARG#*\=} && set -- noarg "$1" && break'
_4 "eval '[ \${OPTARG+x} ] &&:' && OPTARG=$on || OPTARG=$off"
valid "$1" "${v:-\$OPTARG}"
_4 ';;'
}
_param() {
args "$@"
_3 "$sw)"
_4 '[ $# -le 1 ] && set -- required "$1" && break'
_4 'OPTARG=$2'
valid "$1" '$OPTARG'
_4 'shift ;;'
}
_option() {
args "$@"
quote on "$on" && quote off "$off"
_3 "$sw)"
_4 'set -- "$1" "$@"'
_4 '[ ${OPTARG+x} ] && {'
_5 'case $1 in --no-*) set -- noarg "${1%%\=*}"; break; esac'
_5 '[ "${OPTARG:-}" ] && { shift; OPTARG=$2; } ||' "OPTARG=$on"
_4 "} || OPTARG=$off"
valid "$1" '$OPTARG'
_4 'shift ;;'
}
valid() {
set -- "$validate" "$pattern" "$1" "$2"
[ "$1" ] && _4 "$1 || { set -- ${1%% *}:\$? \"\$1\" $1; break; }"
[ "$2" ] && {
quote pattern "$2"
_4 "case \$OPTARG in $2) ;;"
_5 "*) set -- pattern:$pattern \"\$1\"; break"
_4 "esac"
}
code "$3" _4 "${export:+export }$3=\"$4\"" "${3#:}"
}
_disp() {
args "$@"
_3 "$sw)"
code "$1" _4 "echo \"\${$1}\"" "${1#:}"
_4 'exit 0 ;;'
}
_msg() { :; }
_0 "$2() {"
_1 'OPTIND=$(($#+1))'
_1 'while OPTARG= && [ $# -gt 0 ]; do'
[ "$_alt" ] && _2 'case $1 in -[!-]?*) set -- "-$@"; esac'
_2 'case $1 in'
wa() { _4 "eval '${1% *}' \${1+'\"\$@\"'}"; }
_3 '--?*=*) OPTARG=$1; shift'
wa 'set -- "${OPTARG%%\=*}" "${OPTARG#*\=}" "$@"'
_4 ';;'
_3 '--no-*) unset OPTARG ;;'
[ "$_alt" ] || {
[ "$_opts" ] && {
_3 "-[$_opts]?*) OPTARG=\$1; shift"
wa 'set -- "${OPTARG%"${OPTARG#??}"}" "${OPTARG#??}" "$@"'
_4 ';;'
}
_3 '-[!-]?*) OPTARG=$1; shift'
wa 'set -- "${OPTARG%"${OPTARG#??}"}" "-${OPTARG#??}" "$@"'
_4 'OPTARG= ;;'
}
[ "$_plus" ] && {
_3 '+??*) OPTARG=$1; shift'
wa 'set -- "${OPTARG%"${OPTARG#??}"}" "+${OPTARG#??}" "$@"'
_4 'unset OPTARG ;;'
_3 '+*) unset OPTARG ;;'
}
_2 'esac'
_2 'case $1 in'
"$@"
rest() {
_3 "$1"
_4 'while [ $# -gt 0 ]; do'
_5 "$_rest=\"\${$_rest}" '\"\${$((${OPTIND:-0}-$#))}\""'
_5 'shift'
_4 'done'
_4 'break ;;'
}
rest '--) shift'
_3 "[-${_plus:++}]?*)" 'set -- unknown "$1" && break ;;'
case $_mode in
+) rest '*)' ;;
*) _3 "*) $_rest=\"\${$_rest}" '\"\${$((${OPTIND:-0}-$#))}\""'
esac
_2 'esac'
_2 'shift'
_1 'done'
_1 '[ $# -eq 0 ] && { OPTIND=1; unset OPTARG; return 0; }'
_1 'case $1 in'
_2 'unknown) set -- "Unrecognized option: $2" "$@" ;;'
_2 'noarg) set -- "Does not allow an argument: $2" "$@" ;;'
_2 'required) set -- "Requires an argument: $2" "$@" ;;'
_2 'pattern:*) set -- "Does not match the pattern (${1#*:}): $2" "$@" ;;'
_2 '*) set -- "Validation error ($1): $2" "$@"'
_1 'esac'
[ "$_error" ] && _1 "$_error" '"$@" >&2 || exit $?'
_1 'echo "$1" >&2'
_1 'exit 1'
_0 '}'
# This throws an error on older versions of shellcheck.
# shellcheck disable=2086
[ ! "$_help" ] || eval "shift 2; getoptions_help $1 $_help" ${3+'"$@"'}
}
# URL: https://github.com/ko1nksm/getoptions (v2.0.1)
# License: Creative Commons Zero v1.0 Universal
getoptions_help() {
width=30 plus='' leading=' '
pad() { p=$2; while [ ${#p} -lt "$3" ]; do p="$p "; done; eval "$1=\$p"; }
args() {
_type=$1 var=${2%% *} sw='' label='' hidden='' _width=$width && shift 2
while [ $# -gt 0 ] && i=$1 && shift && [ ! "$i" = '--' ]; do
case $i in
--*) pad sw "$sw${sw:+, }" $((${plus:+4}+4)); sw="$sw$i" ;;
-?) sw="$sw${sw:+, }$i" ;;
+?) [ ! "$plus" ] || { pad sw "$sw${sw:+, }" 4; sw="$sw$i"; } ;;
*) eval "${i%%:*}=\${i#*:}"
esac
done
[ "$hidden" ] && return 0
[ "$label" ] || case $_type in
setup | msg) label='' _width=0 ;;
flag | disp) label="$sw " ;;
param) label="$sw $var " ;;
option) label="${sw}[=$var] "
esac
pad label "${label:+$leading}$label" "$_width"
[ ${#label} -le "$_width" ] && [ $# -gt 0 ] && label="$label$1" && shift
echo "$label"
pad label '' "$_width"
for i; do echo "$label$i"; done
}
for i in 'setup :' flag param option disp 'msg :'; do
eval "${i% *}() { args $i \"\$@\"; }"
done
echo "$2() {"
echo "cat<<'GETOPTIONSHERE'"
"$@"
echo "GETOPTIONSHERE"
echo "}"
}
global_options() {
msg -- '' 'Global Options:'
flag CPT_FORCE -f --force init:@export -- "Force operation"
flag CPT_PROMPT -y --no-prompt on:0 off:0 init:@export -- "Do not prompt for confirmation"
param CPT_ROOT --root init:@export -- "Use an alternate root directory"
disp :usage -h --help -- "Show this help message"
disp :version -v --version -- "Print version information"
}
# Local Variables:
# mode: sh
# End:
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