55 lines
1.2 KiB
Bash
55 lines
1.2 KiB
Bash
#!/usr/bin/env sh
|
|
|
|
[ -n "${_DETECT_SH_}" ] && return || readonly _DETECT_SH_=1
|
|
[ -n "${_VERBOSE_}" ] && echo "-- INCLUDE: detect.sh"
|
|
|
|
_detect() {
|
|
cmd="$1"; optional="$2"; verbose="$3";
|
|
[ -n "$verbose" ] || [ -z "${_VERBOSE_}" ] || verbose=1;
|
|
if ! type "$cmd" &> /dev/null; then
|
|
[ -z "$verbose" ] || echo "-- DETECT: $cmd not found"
|
|
if [ -z "$optional" ]; then
|
|
echo >&2 "-- DETECT: $cmd not found, but required"
|
|
exit 1
|
|
fi
|
|
else
|
|
[ -z "$verbose" ] || echo "-- DETECT: $cmd found"
|
|
eval "${cmd}_FOUND=1"
|
|
fi
|
|
}
|
|
|
|
_detect_cmd() {
|
|
[ -x "$(command -v $1)" ]
|
|
}
|
|
|
|
_detect_fn() {
|
|
[ `type -t $1`"" == "function" ]
|
|
}
|
|
|
|
if [ -n "${_TEST_}" ]; then
|
|
echo "-- TEST_BEG: _detect"
|
|
_CMDS=(ls none)
|
|
for _cmd in "${_CMDS[@]}"; do
|
|
_detect "$_cmd" 1
|
|
|
|
_CMD_FOUND="${_cmd}_FOUND"
|
|
if [ -n "${!_CMD_FOUND}" ]; then
|
|
echo "-- ${_CMD_FOUND} set"
|
|
else
|
|
echo "-- ${_CMD_FOUND} unset"
|
|
fi
|
|
done
|
|
echo "-- TEST_END: _detect"
|
|
|
|
echo "-- TEST_BEG: _detect_fn"
|
|
_FUNCS=(_detect none)
|
|
for _fn in "${_FUNCS[@]}"; do
|
|
if _detect_fn "$_fn"; then
|
|
echo "-- $_fn function exists"
|
|
else
|
|
echo "-- $_fn function not exist"
|
|
fi
|
|
done
|
|
echo "-- TEST_END: _detect_fn"
|
|
fi
|