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args.sh
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args.sh
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#
# args.sh
#
# Licensed under the MIT License <http://opensource.org/licenses/MIT>.
# Copyright (c) 2024 BLET Mickael.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
#
declare -A ARGS
declare -A __ARGS
# Clean all map and array for recalled
args_clean() {
ARGS=()
__ARGS=()
__ARGS[PROG_NAME]=""
__ARGS[USAGE]=""
__ARGS[DESCRIPTION]=""
__ARGS[EPILOG]=""
__ARGS[USAGE_WIDTH_PADDING]=2
__ARGS[USAGE_WIDTH_ARGUMENT]=20
__ARGS[USAGE_WIDTH_SEPARATOR]=2
__ARGS[USAGE_WIDTH_HELP]=56
# positional argument
__ARGS[argument.size]=0
# optional argument
__ARGS[option.size]=0
return 0
}
__args_already_exists() {
local type
local i=0
local j=0
while [ "$i" -lt "${__ARGS[argument.size]}" ]; do
if [ "$1" = "${__ARGS[argument.${i}.name]}" ]; then
return 0;
fi
i=$((i + 1))
done
i=0
while [ "$i" -lt "${__ARGS[option.size]}" ]; do
for type in "short" "long"; do
j=0
while [ "$j" -lt "${__ARGS[option.${i}.${type}.size]}" ]; do
if [ "$1" = "${__ARGS[option.${i}.${type}.${j}]}" ]; then
return 0;
fi
j=$((j + 1))
done
done
i=$((i + 1))
done
return 1;
}
# Swap options
__args_swap_options() {
local i
local action
local metavar
local help
local default
local dest
local required
local action
local exists
local count
local choices
local nargs
local shorts
local longs
shorts=()
longs=()
# get parameters of option 1
action="${__ARGS[option.${1}.action]}"
metavar="${__ARGS[option.${1}.metavar]}"
help="${__ARGS[option.${1}.help]}"
default="${__ARGS[option.${1}.default]}"
dest="${__ARGS[option.${1}.dest]}"
required="${__ARGS[option.${1}.required]}"
action="${__ARGS[option.${1}.action]}"
exists="${__ARGS[option.${1}.exists]}"
count="${__ARGS[option.${1}.count]}"
choices="${__ARGS[option.${1}.choices]}"
nargs="${__ARGS[option.${1}.nargs]}"
i=0
while [ "$i" -lt "${__ARGS[option.${1}.short.size]}" ]; do
shorts+=("${__ARGS[option.${1}.short.${i}]}")
i=$((i + 1))
done
i=0
while [ "$i" -lt "${__ARGS[option.${1}.long.size]}" ]; do
longs+=("${__ARGS[option.${1}.long.${i}]}")
i=$((i + 1))
done
__ARGS[option.${1}.action]="${__ARGS[option.${2}.action]}"
__ARGS[option.${1}.metavar]="${__ARGS[option.${2}.metavar]}"
__ARGS[option.${1}.help]="${__ARGS[option.${2}.help]}"
__ARGS[option.${1}.default]="${__ARGS[option.${2}.default]}"
__ARGS[option.${1}.dest]="${__ARGS[option.${2}.dest]}"
__ARGS[option.${1}.required]="${__ARGS[option.${2}.required]}"
__ARGS[option.${1}.action]="${__ARGS[option.${2}.action]}"
__ARGS[option.${1}.exists]="${__ARGS[option.${2}.exists]}"
__ARGS[option.${1}.count]="${__ARGS[option.${2}.count]}"
__ARGS[option.${1}.choices]="${__ARGS[option.${2}.choices]}"
__ARGS[option.${1}.nargs]="${__ARGS[option.${2}.nargs]}"
i=0
while [ "$i" -lt "${__ARGS[option.${2}.short.size]}" ]; do
__ARGS[option.${1}.short.${i}]="${__ARGS[option.${2}.short.${i}]}"
i=$((i + 1))
done
__ARGS[option.${1}.short.size]="${__ARGS[option.${2}.short.size]}"
i=0
while [ "$i" -lt "${__ARGS[option.${2}.long.size]}" ]; do
__ARGS[option.${1}.long.${i}]="${__ARGS[option.${2}.long.${i}]}"
i=$((i + 1))
done
__ARGS[option.${1}.long.size]="${__ARGS[option.${2}.long.size]}"
__ARGS[option.${2}.action]="$action"
__ARGS[option.${2}.metavar]="$metavar"
__ARGS[option.${2}.help]="$help"
__ARGS[option.${2}.default]="$default"
__ARGS[option.${2}.dest]="$dest"
__ARGS[option.${2}.required]="$required"
__ARGS[option.${2}.action]="$action"
__ARGS[option.${2}.exists]="$exists"
__ARGS[option.${2}.count]="$count"
__ARGS[option.${2}.choices]="$choices"
__ARGS[option.${2}.nargs]="$nargs"
for i in "${!shorts[@]}"; do
__ARGS[option.${2}.short.${i}]="${shorts[$i]}"
done
__ARGS[option.${2}.short.size]="${#shorts[@]}"
for i in "${!longs[@]}"; do
__ARGS[option.${2}.long.${i}]="${longs[$i]}"
done
__ARGS[option.${2}.long.size]="${#longs[@]}"
return 0
}
# Sort by asc optional arguments
__args_sort() {
local max="$((${__ARGS[option.size]} - 1))"
local i j
while [ "$max" -gt 0 ]; do
i=0
j=1
while [ "$i" -lt "$max" ]; do
if [ "${__ARGS[option.${i}.short.size]}" -ne 0 ] && \
[ "${__ARGS[option.${j}.short.size]}" -ne 0 ]; then
if [ "${__ARGS[option.${i}.required]}" = "false" ] && \
[ "${__ARGS[option.${j}.required]}" = "true" ]; then
__args_swap_options "$i" "$j"
elif [ "${__ARGS[option.${i}.required]}" = "false" ] && \
[[ "${__ARGS[option.${i}.short.0]}" > "${__ARGS[option.${j}.short.0]}" ]]; then
__args_swap_options "$i" "$j"
fi
elif [ "${__ARGS[option.${i}.short.size]}" -eq 0 ] && \
[ "${__ARGS[option.${j}.short.size]}" -eq 0 ] && \
[ "${__ARGS[option.${i}.long.size]}" -ne 0 ] && \
[ "${__ARGS[option.${j}.long.size]}" -ne 0 ]; then
if [ "${__ARGS[option.${i}.required]}" = "false" ] && \
[ "${__ARGS[option.${j}.required]}" = "true" ]; then
__args_swap_options "$i" "$j"
elif [ "${__ARGS[option.${i}.required]}" = "false" ] && \
[[ "${__ARGS[option.${i}.long.0]}" > "${__ARGS[option.${j}.long.0]}" ]]; then
__args_swap_options "$i" "$j"
fi
elif [ "${__ARGS[option.${i}.short.size]}" -eq 0 ]; then
__args_swap_options "$i" "$j"
fi
i=$((i + 1))
j=$((j + 1))
done
max=$((max - 1))
done
return 0
}
__args_parse_option_is_value() {
local index="$1"
local value="$2"
local type
local name
local i
for type in "short" "long"; do
i=0
while [ "$i" -lt "${__ARGS[option.${index}.${type}.size]}" ]; do
[ "short" = "$type" ] && name="-"
[ "long" = "$type" ] && name="--"
name+="${__ARGS[option.${index}.${type}.${i}]}"
if [ "$value" = "$name" ]; then
return 0
fi
i=$((i + 1))
done
done
return 1
}
__args_parse_option_is_assign_value() {
local index="$1"
local value="$2"
local type
local name
local i
for type in "short" "long"; do
i=0
while [ "$i" -lt "${__ARGS[option.${index}.${type}.size]}" ]; do
[ "short" = "$type" ] && name="-"
[ "long" = "$type" ] && name="--"
name+="${__ARGS[option.${index}.${type}.${i}]}"
if [[ "$value" = "$name="* ]]; then
return 0
fi
i=$((i + 1))
done
done
return 1
}
__args_parse_option_is_multi_short_value() {
local index="$1"
local value="$2"
local name
local i
i=0
while [ "$i" -lt "${__ARGS[option.${index}.short.size]}" ]; do
name="${__ARGS[option.${index}.short.${i}]}"
if [[ "$value" = "-$name"* ]]; then
return 0
fi
i=$((i + 1))
done
return 1
}
__args_parse_option_on_multi_short_value() {
local index="$1"
local value="$2"
local name
local i
i=0
while [ "$i" -lt "${__ARGS[option.${index}.short.size]}" ]; do
name="${__ARGS[option.${index}.short.${i}]}"
if [[ "$value" = "$name"* ]]; then
return 0
fi
i=$((i + 1))
done
return 1
}
__args_parse_assign_option_value() {
local index="$1"
local value="$2"
local type
local name
local i
for type in "short" "long"; do
i=0
while [ "$i" -lt "${__ARGS[option.${index}.${type}.size]}" ]; do
name="${__ARGS[option.${index}.${type}.${i}]}"
ARGS[${name}]="$value"
i=$((i + 1))
done
done
return 0
}
__args_parse_assign_option_multi_values() {
local index="$1"
local index_value="$2"
local value="$3"
local i
local type
local name
for type in "short" "long"; do
i=0
while [ "$i" -lt "${__ARGS[option.${index}.${type}.size]}" ]; do
name="${__ARGS[option.${index}.${type}.${i}]}"
ARGS[${name}.${index_value}]="$value"
if [ "${ARGS[${name}]+abracadabra}" ]; then
ARGS[${name}]="${ARGS[${name}]} $value"
else
ARGS[${name}]="$value"
fi
i=$((i + 1))
done
done
return 0
}
# Set the program name
# params:
# $1 Name of program
# example:
# args_set_prog_name "my_script"
args_set_prog_name() {
__ARGS[PROG_NAME]="$1"
}
# Set a usage description
args_set_description() {
__ARGS[DESCRIPTION]="$*"
}
# Set a epilog description
# params:
# $* Concat all arguments
# example:
# args_set_epilog "Your epilog " "message"
args_set_epilog() {
__ARGS[EPILOG]="$*"
}
# Set a full usage message
# example:
# args_set_usage "Your usage " "message"
args_set_usage() {
__ARGS[USAGE]="$*"
}
# Set the widths of usage message
# params:
# $1 Padding
# $2 Argument
# $3 Separator
# $4 Help
args_set_usage_widths() {
__ARGS[USAGE_WIDTH_PADDING]="$1"
__ARGS[USAGE_WIDTH_ARGUMENT]="$2"
__ARGS[USAGE_WIDTH_SEPARATOR]="$3"
__ARGS[USAGE_WIDTH_HELP]="$4"
}
# Check if argument is exists in argv
# param:
# $1 Argument name
args_isexists() {
local i
local j
local type
local name
if [[ "$1" == "--"* ]]; then
name="${1:2}"
elif [[ "$1" == "-"* ]]; then
name="${1:1}"
else
name="$1"
fi
i=0
while [ "$i" -lt "${__ARGS[argument.size]}" ]; do
if [ "$name" = "${__ARGS[argument.${i}.name]}" ]; then
if [ "${__ARGS[argument.${i}.exists]}" = "true" ]; then
return 0
else
return 1
fi
fi
i=$((i + 1))
done
for type in "short" "long"; do
i=0
while [ "$i" -lt "${__ARGS[option.size]}" ]; do
j=0
while [ "$j" -lt "${__ARGS[option.${i}.${type}.size]}" ]; do
if [ "$name" = "${__ARGS[option.${i}.${type}.${j}]}" ]; then
if [ "${__ARGS[option.${i}.exists]}" = "true" ]; then
return 0
else
return 1
fi
fi
j=$((j + 1))
done
i=$((i + 1))
done
done
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: '$1' is not a valid argument name"
return 1
}
# Check the count of argument in argv
# param:
# $1 Argument name
args_count() {
local name
if [[ "$1" == "--"* ]]; then
name="${1:2}"
elif [[ "$1" == "-"* ]]; then
name="${1:1}"
else
name="$1"
fi
local i=0
while [ "$i" -lt "${__ARGS[argument.size]}" ]; do
if [ "$name" = "${__ARGS[argument.${i}.name]}" ]; then
echo "${__ARGS[argument.${i}.count]}"
return 0
fi
i=$((i + 1))
done
for type in "short" "long"; do
i=0
while [ "$i" -lt "${__ARGS[option.size]}" ]; do
j=0
while [ "$j" -lt "${__ARGS[option.${i}.${type}.size]}" ]; do
if [ "$name" = "${__ARGS[option.${i}.${type}.${j}]}" ]; then
echo "${__ARGS[option.${i}.count]}"
return 0
fi
j=$((j + 1))
done
i=$((i + 1))
done
done
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: '$1' is not a valid argument name"
return 1
}
# Add a argument
# option params:
# --action Action (append, count, store, store_false, store_true)
# --choices List of valid values (separate by spaces)
# --default Default value
# --dest Destination variable
# --help Usage helper
# --metavar Usage argument name (if not set use long/short name)
# --nargs The number of arguments that should be consumed
# --name Set the name of positionnal argument
# --flag Add a optional argument
# --required Is required if exists
# example:
# args_add_argument --help="help of FOO" --dest="FOO" -- "FOO"
args_add_argument() {
local action="store"
local choices=""
local default=""
local dest=""
local help=""
local metavar=""
local nargs=1
local required=false
local args=()
while [ $# -ne 0 ]; do
case $1 in
"--")
shift
break;;
"--action")
if [ $# -le 1 ]; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: '--action' option require a argument"
return 1
fi
action="${2,,}"
shift 2;;
"--action="*)
action="${1#*=}"
action="${action,,}"
shift;;
"--choices")
if [ $# -le 1 ]; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: '--choices' option require a argument"
return 1
fi
choices="$2"
shift 2;;
"--choices="*)
choices="${1#*=}"
shift;;
"--default")
if [ $# -le 1 ]; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: '--default' option require a argument"
return 1
fi
default="$2"
shift 2;;
"--default="*)
default="${1#*=}"
shift;;
"--dest")
if [ $# -le 1 ]; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: '--dest' option require a argument"
return 1
fi
dest="$2"
shift 2;;
"--dest="*)
dest="${1#*=}"
shift;;
"--help")
if [ $# -le 1 ]; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: '--help' option require a argument"
return 1
fi
help="$2"
shift 2;;
"--help="*)
help="${1#*=}"
shift;;
"--metavar")
if [ $# -le 1 ]; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: '--metavar' option require a argument"
return 1
fi
metavar="$2"
shift 2;;
"--metavar="*)
metavar="${1#*=}"
shift;;
"--nargs")
if [ $# -le 1 ]; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: '--nargs' option require a argument"
return 1
fi
nargs="$2"
shift 2;;
"--nargs="*)
nargs="${1#*=}"
shift;;
"--required")
required=true
shift;;
"--name")
if [ $# -le 1 ]; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: '--name' option require a argument"
return 1
fi
args+=("$2")
shift 2;;
"--name="*)
args+=("${1#*=}")
shift;;
"--flag")
if [ $# -le 1 ]; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: '--flag' option require a argument"
return 1
fi
args+=("$2")
shift 2;;
"--flag="*)
args+=("${1#*=}")
shift;;
"-"*)
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: unrecognized option '$1'"
return 1;;
*)
args+=("$1")
shift;;
esac
done
while [ $# -ne 0 ]; do
args+=("$1")
shift
done
# bad format of action
if [[ "$action" != "append" ]] && \
[[ "$action" != "count" ]] && \
[[ "$action" != "store" ]] && \
[[ "$action" != "store_false" ]] && \
[[ "$action" != "store_true" ]]; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: unknown action '$action'"
return 1
fi
# default and required
if [ -n "$default" ] && [ "$required" = "true" ]; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: '--default' used with '--required'"
return 1
fi
# store_true or store_false
if [[ "$action" == "store_true" ]] || [[ "$action" == "store_false" ]]; then
# default
if [ -n "$default" ]; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: '--default' used with action '$action'"
return 1
fi
# metavar
if [ -n "$metavar" ]; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: '--metavar' used with action '$action'"
return 1
fi
fi
# choises and not store
if [[ "$action" != "store" ]] && [ -n "$choices" ]; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: '--choices' used without action 'store'"
return 1
fi
# infinite mode
if [ "$nargs" = "+" ]; then
nargs=1
action="infinite"
fi
if [ "$nargs" -gt 1 ]; then
# default
if [ -n "$default" ]; then
# get number of word
local word
local word_nb=0
for word in ${default}; do
word+=""
word_nb=$((word_nb + 1))
done
if [ "$word_nb" -ne "$nargs" ]; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: number word of '--default' ($word_nb) is not the same of '--nargs' ($nargs)"
return 1
fi
fi
# choices
if [ -n "$choices" ]; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: '--choices' can't used with '--nargs'"
return 1
fi
fi
# not name or flags
if [ ${#args[@]} -eq 0 ]; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: need a flag or argument name"
return 1
fi
local is_argument=false
local is_flag=false
local short_flags=()
local long_flags=()
local argument_name=""
local arg
# check format of argument
for arg in "${args[@]}"; do
if [[ "$arg" == "--"* ]]; then
# already exists
if __args_already_exists "${arg:2}"; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: option name '${arg}' already exists"
return 1
fi
is_flag="true"
[[ ! "${long_flags[*]:-}" =~ (^|[[:space:]])"${arg:2}"($|[[:space:]]) ]] && long_flags+=("${arg:2}")
elif [[ "$arg" == "-"* ]]; then
# size or digit of short
if [ "${#arg}" -ne 2 ] || [[ "$arg" =~ ^"-"[[:digit:]]$ ]]; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: short option name '$arg' not valid"
return 1
fi
# already exists
if __args_already_exists "${arg:1}"; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: option name '${arg}' already exists"
return 1
fi
is_flag="true"
[[ ! "${short_flags[*]:-}" =~ (^|[[:space:]])"${arg:1}"($|[[:space:]]) ]] && short_flags+=("${arg:1}")
else
# multi argument name
if [ "$is_argument" = "true" ]; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: you can't have multi argument name"
return 1
fi
# empty argument name
if [ -z "$arg" ]; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: name of argument is empty"
return 1
fi
# already exists
if __args_already_exists "$arg"; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: argument name '${arg}' already exists"
return 1
fi
is_argument="true"
argument_name="$arg"
fi
if [ "$is_argument" = "true" ] && [ "$is_flag" = "true" ]; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: you can't mixte argument and flag(s)"
return 1
fi
done
# sort flags
local max
max="$((${#long_flags[@]} - 1))"
local i j tmp
while [ "$max" -gt 0 ]; do
i=0
j=1
while [ "$i" -lt "$max" ]; do
if [ -n "${long_flags[$i]}" ] && [ -n "${long_flags[$j]}" ]; then
if [[ "${long_flags[$i]}" > "${long_flags[$j]}" ]]; then
tmp="${long_flags[$i]}"
long_flags[$i]="${long_flags[$j]}"
long_flags[$j]="$tmp"
fi
fi
i=$((i + 1))
j=$((j + 1))
done
max=$((max - 1))
done
max="$((${#short_flags[@]} - 1))"
while [ "$max" -gt 0 ]; do
i=0
j=1
while [ "$i" -lt "$max" ]; do
if [ -n "${short_flags[$i]}" ] && [ -n "${short_flags[$j]}" ]; then
if [[ "${short_flags[$i]}" > "${short_flags[$j]}" ]]; then
tmp="${short_flags[$i]}"
short_flags[$i]="${short_flags[$j]}"
short_flags[$j]="$tmp"
fi
fi
i=$((i + 1))
j=$((j + 1))
done
max=$((max - 1))
done
if [ "$is_argument" = "true" ]; then
__ARGS[argument.${__ARGS[argument.size]}.name]="$argument_name"
__ARGS[argument.${__ARGS[argument.size]}.help]="$help"
__ARGS[argument.${__ARGS[argument.size]}.default]="$default"
__ARGS[argument.${__ARGS[argument.size]}.dest]="$dest"
__ARGS[argument.${__ARGS[argument.size]}.required]="$required"
__ARGS[argument.${__ARGS[argument.size]}.exists]="false"
__ARGS[argument.${__ARGS[argument.size]}.count]=0
__ARGS[argument.${__ARGS[argument.size]}.choices]="$choices"
__ARGS[argument.size]=$((${__ARGS[argument.size]} + 1))
else
for i in "${!short_flags[@]}"; do
__ARGS[option.${__ARGS[option.size]}.short.${i}]="${short_flags[$i]}"
done
__ARGS[option.${__ARGS[option.size]}.short.size]="${#short_flags[@]}"
for i in "${!long_flags[@]}"; do
__ARGS[option.${__ARGS[option.size]}.long.${i}]="${long_flags[$i]}"
done
__ARGS[option.${__ARGS[option.size]}.long.size]="${#long_flags[@]}"
if [ "$action" = "store_false" ]; then
__ARGS[option.${__ARGS[option.size]}.default]="true"
elif [ "$action" = "store_true" ]; then
__ARGS[option.${__ARGS[option.size]}.default]="false"
elif [ -z "$default" ] && [ "$action" = "count" ]; then
__ARGS[option.${__ARGS[option.size]}.default]="0"
else
__ARGS[option.${__ARGS[option.size]}.default]="$default"
fi
__ARGS[option.${__ARGS[option.size]}.action]="$action"
__ARGS[option.${__ARGS[option.size]}.metavar]="$metavar"
__ARGS[option.${__ARGS[option.size]}.help]="$help"
__ARGS[option.${__ARGS[option.size]}.dest]="$dest"
__ARGS[option.${__ARGS[option.size]}.required]="$required"
__ARGS[option.${__ARGS[option.size]}.exists]="false"
__ARGS[option.${__ARGS[option.size]}.count]=0
__ARGS[option.${__ARGS[option.size]}.choices]="$choices"
__ARGS[option.${__ARGS[option.size]}.nargs]="$nargs"
__ARGS[option.size]=$((${__ARGS[option.size]} + 1))
fi
return 0
}
# Show all values of arguments and options
args_debug_values() {
# get column max of options
local max_col=0
local key
local value
local i
local j
local count
local type
i=0
while [ "$i" -lt "${__ARGS[argument.size]}" ]; do
count="${#__ARGS[argument.${i}.name]}"
if [ $count -gt $max_col ]; then
max_col=$count
fi
i=$((i + 1))
done
i=0
while [ "$i" -lt "${__ARGS[option.size]}" ]; do
key=""
for type in "short" "long"; do
j=0
while [ "$j" -lt "${__ARGS[option.${i}.${type}.size]}" ]; do
[ -n "$key" ] && key+=", "
[ "$type" = "short" ] && key+="-"
[ "$type" = "long" ] && key+="--"
key+="${__ARGS[option.${i}.${type}.${j}]}"
j=$((j + 1))
done
done
count=$((${#key}))
if [ $count -gt $max_col ]; then
max_col=$count
fi
i=$((i + 1))
done
i=0
while [ "$i" -lt "${__ARGS[argument.size]}" ]; do
printf -- "%-*s : %s (count: %s, exists: %s)\n" \
"$max_col" \
"${__ARGS[argument.${i}.name]}" \
"${ARGS[${__ARGS[argument.${i}.name]}]:-}" \
"${__ARGS[argument.${i}.count]}" \
"${__ARGS[argument.${i}.exists]}"
i=$((i + 1))
done
i=0
while [ "$i" -lt "${__ARGS[option.size]}" ]; do
key=""
for type in "short" "long"; do
j=0
while [ "$j" -lt "${__ARGS[option.${i}.${type}.size]}" ]; do
[ -n "$key" ] && key+=", "
[ "$type" = "short" ] && key+="-"
[ "$type" = "long" ] && key+="--"
key+="${__ARGS[option.${i}.${type}.${j}]}"
j=$((j + 1))
done
done
local name=""
[ "${__ARGS[option.${i}.long.size]}" -ne 0 ] && name="${__ARGS[option.${i}.long.0]}"
[ "${__ARGS[option.${i}.short.size]}" -ne 0 ] && name="${__ARGS[option.${i}.short.0]}"
printf -- "%-*s : %s (count: %s, exists: %s)\n" \
"$max_col" \
"$key" \
"${ARGS[$name]:-}" \
"${__ARGS[option.${i}.count]}" \
"${__ARGS[option.${i}.exists]}"
i=$((i + 1))
done
return 0
}
# Show/Generate usage message
# params:
# $1 Name/Path of script
args_usage() {
if [ -n "${__ARGS[USAGE]}" ]; then
echo "${__ARGS[USAGE]}"
else
__args_sort
local i
local j
local str
local max_col="$((__ARGS[USAGE_WIDTH_PADDING] + __ARGS[USAGE_WIDTH_ARGUMENT] + __ARGS[USAGE_WIDTH_SEPARATOR] + __ARGS[USAGE_WIDTH_HELP]))"
local current_col=0
local has_max_col=false
# generate usage message
if [ -n "${__ARGS[PROG_NAME]}" ]; then
str="usage: ${__ARGS[PROG_NAME]##*/}"
else
str="usage: ${1##*/}"
fi
local usage_basename_length="${#str}"
current_col="$usage_basename_length"
i=0
while [ "$i" -lt "${__ARGS[option.size]}" ]; do
local option=""
option+=" "
if [ "false" = "${__ARGS[option.${i}.required]}" ]; then
option+="["
fi
if [ "${__ARGS[option.${i}.short.size]}" -ne 0 ]; then
option+="-${__ARGS[option.${i}.short.0]}"
elif [ "${__ARGS[option.${i}.long.size]}" -ne 0 ]; then
option+="--${__ARGS[option.${i}.long.0]}"
fi
if [ "store" = "${__ARGS[option.${i}.action]}" ] || \
[ "append" = "${__ARGS[option.${i}.action]}" ] || \
[ "infinite" = "${__ARGS[option.${i}.action]}" ]; then
option+=" "
if [ -n "${__ARGS[option.${i}.metavar]}" ]; then
option+="${__ARGS[option.${i}.metavar]}"
else
if [ "${__ARGS[option.${i}.long.size]}" -ne 0 ]; then
local option_argument="${__ARGS[option.${i}.long.0]^^}"
option+="${option_argument//-/_}"
else
option+="${__ARGS[option.${i}.short.0]^^}"
fi
if [ "infinite" = "${__ARGS[option.${i}.action]}" ]; then
option+="..."
fi
fi
fi
if [ "false" = "${__ARGS[option.${i}.required]}" ]; then
option+="]"
fi
if [ "$((current_col + ${#option}))" -gt "$max_col" ]; then
has_max_col=true
str+=$'\n'
j=0
while [ "$j" -lt "${usage_basename_length}" ]; do
str+=" "
j=$((j + 1))
done
current_col="$usage_basename_length"
fi
str+="$option"
current_col="$((current_col + ${#option}))"
i=$((i + 1))
done
if [ "${__ARGS[argument.size]}" -ne 0 ]; then
if $has_max_col || [ "$((current_col + 3))" -gt "$max_col" ]; then
str+=$'\n'
j=0
while [ "$j" -lt "${usage_basename_length}" ]; do
str+=" "
j=$((j + 1))
done
str+=" --"
str+=$'\n'
j=0
while [ "$j" -lt "${usage_basename_length}" ]; do
str+=" "
j=$((j + 1))
done
current_col="$usage_basename_length"
else
str+=" --"
current_col="$((current_col + 3))"
fi
fi
i=0
while [ "$i" -lt "${__ARGS[argument.size]}" ]; do
local option=""
option+=" "
if [ "${__ARGS[argument.${i}.required]}" = "true" ]; then
option+="${__ARGS[argument.${i}.name]}"
else
option+="[${__ARGS[argument.${i}.name]}]"
fi
if [ "$((current_col + ${#option}))" -gt "$max_col" ]; then
has_max_col=true
str+=$'\n'
j=0
while [ "$j" -lt "${usage_basename_length}" ]; do
str+=" "
j=$((j + 1))
done
current_col="$usage_basename_length"
fi
str+="$option"
current_col="$((current_col + ${#option}))"
i=$((i + 1))
done
str+=$'\n'
if [ -n "${__ARGS[DESCRIPTION]}" ]; then
str+=$'\n'
str+="${__ARGS[DESCRIPTION]}"
str+=$'\n'
fi
if [ "${__ARGS[argument.size]}" -ne 0 ]; then
str+=$'\n'
str+="positional arguments:"
str+=$'\n'
fi
i=0
while [ "$i" -lt "${__ARGS[argument.size]}" ]; do
j=0
while [ "$j" -lt "${__ARGS[USAGE_WIDTH_PADDING]}" ]; do
str+=" "
j=$((j + 1))
done
local option=""
option+="${__ARGS[argument.${i}.name]}"
str+="$option"
if [ -n "${__ARGS[argument.${i}.help]}" ]; then
if [ "${#option}" -gt "${__ARGS[USAGE_WIDTH_ARGUMENT]}" ]; then
str+=$'\n'
j=0