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# pro-archman
# lib/cmd.sh
# Command-related functions
#
# Copyright (C) 2013 Patrick "P. J." McDermott
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
[ "x${_CMD_SM+set}" = 'xset' ] && return 0
_CMD_SM=1
use output
use locale
cmds=
load_cmds()
{
local cmd
for cmd in ${PKGLIBCMD}; do
cmd="${cmd##*/}"
cmd="${cmd%.sm}"
cmds="${cmds}${cmd}${LF}"
use "cmd/${cmd}"
done
}
cmd_summary()
{
if [ "x${loading_cmd}" = 'x' ]; then
return 125
fi
eval "cmd_${loading_cmd}_summary='${1}'"
}
cmd_usage()
{
if [ "x${loading_cmd}" = 'x' ]; then
return 125
fi
eval "cmd_${loading_cmd}_usage='${1}'"
}
print_cmd_summaries()
{
local padding cmd summary
padding="$(printf '%24s' '')"
for cmd in ${PKGLIBCMD}; do
cmd="${cmd##*/}"
cmd="${cmd%.sm}"
if [ ${#cmd} -gt 20 ]; then
printf ' %s\n%24s' "${cmd}" ''
else
printf ' %-20s ' "${cmd}"
fi
summary="$(eval printf \'%s\' \"\$\{cmd_"${cmd}"_summary\}\")"
printf '%s\n' "${summary}" | fold -s -w 56 | \
sed "2,\$s/^/${padding}/;"
done
}
print_cmd_usage()
{
local cmd usage
cmd="${1}"
usage="$(eval printf \'%s\' \"\$\{cmd_"${cmd}"_usage\}\")"
printf 'Usage: %s %s %s\n' "${0}" "${cmd}" "${usage}"
}
is_cmd()
{
local cmd
cmd="${1}"
[ "x$(printf '%s' "${cmds}" | grep "^${cmd}$")" = "x${cmd}" ]
}
run_cmd()
{
local cmd
cmd="${1}"
shift
if is_cmd "${cmd}"; then
"cmd_${cmd}_main" "${@}"
else
error 1 'Command "%s" not found' "${cmd}"
fi
}
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