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pacman/scripts/library/parse_options.sh
Allan McRae 6f3a2145b0 makepkg: move option parsing code to separate file
This move the getopt replacement function parse_options out of
makepkg.sh.in and into a separate file.  The code is inserted
into the relevant place in makepkg using m4.

This will allow the reuse of the option parsing code in other
scripts (i.e. pacman-key) while avoiding code duplication.

Signed-off-by: Allan McRae <allan@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
2011-06-15 09:16:38 -05:00

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# getopt like parser
parse_options() {
local short_options=$1; shift;
local long_options=$1; shift;
local ret=0;
local unused_options=""
local i
while [[ -n $1 ]]; do
if [[ ${1:0:2} = '--' ]]; then
if [[ -n ${1:2} ]]; then
local match=""
for i in ${long_options//,/ }; do
if [[ ${1:2} = ${i//:} ]]; then
match=$i
break
fi
done
if [[ -n $match ]]; then
if [[ ${1:2} = $match ]]; then
printf ' %s' "$1"
else
if [[ -n $2 ]]; then
printf ' %s' "$1"
shift
printf " '%s'" "$1"
else
echo "@SCRIPTNAME@: option '$1' $(gettext "requires an argument")" >&2
ret=1
fi
fi
else
echo "@SCRIPTNAME@: $(gettext "unrecognized option") '$1'" >&2
ret=1
fi
else
shift
break
fi
elif [[ ${1:0:1} = '-' ]]; then
for ((i=1; i<${#1}; i++)); do
if [[ $short_options =~ ${1:i:1} ]]; then
if [[ $short_options =~ ${1:i:1}: ]]; then
if [[ -n ${1:$i+1} ]]; then
printf ' -%s' "${1:i:1}"
printf " '%s'" "${1:$i+1}"
else
if [[ -n $2 ]]; then
printf ' -%s' "${1:i:1}"
shift
printf " '%s'" "${1}"
else
echo "@SCRIPTNAME@: option $(gettext "requires an argument") -- '${1:i:1}'" >&2
ret=1
fi
fi
break
else
printf ' -%s' "${1:i:1}"
fi
else
echo "@SCRIPTNAME@: $(gettext "invalid option") -- '${1:i:1}'" >&2
ret=1
fi
done
else
unused_options="${unused_options} '$1'"
fi
shift
done
printf " --"
if [[ -n $unused_options ]]; then
for i in ${unused_options[@]}; do
printf ' %s' "$i"
done
fi
if [[ -n $1 ]]; then
while [[ -n $1 ]]; do
printf " '%s'" "${1}"
shift
done
fi
printf "\n"
return $ret
}