me=$0
say() { echo >&2 "[1m($me)[m $1"; }
has() { command -v $1 >/dev/null 2>&1; return $?; }
check() {
var=$1
test "${!var}" == "" || return 0
say "we were not able to detect a default value for the configuration variable \$$var. please set this variable to $2 and try again."
exit 1
}
reqpack() {
if ! has "$1"; then
say "to $2 for [1mlibk[m, install the [1m$1[m package and try again"
exit 3
fi
}
noimpl() {
say "$1 is not currently implemented on your system. an exciting chance for you to contribute, no?"
exit 1
}
timestamp() { date "+%H:%M:%S %A"; }
scan() { find "$1" -name "$2"; }
if test "$COLORTERM" != ""; then
announce() {
test "$verbose" = "silent" && return
local cmd="$1"; shift;
local color=225;
case "$cmd" in
rm) color=196;; $asm) color=198;;
$cc) color=213;; ar) color=120;;
ranlib) color=105;; ld) color=216;;
global/build-manpage.sh) color=177;;
$m4) color=207;;
esac
printf " [1;95m→ [38;5;$color;1m$cmd[m"
for a in "$@"; do
if test ${a:0:1} = "-"; then
printf " [91;3m$a[m";
else
printf " [94;4m$a[m";
fi
done
echo
}
else
announce() { echo " --> " $@; }
fi
# the following function is called to report a command invocation
# the person compiling the library. the first argument should be
# an ansi format string; this is used to color-code the tool being
# launched and thus should be different for each one.
report() {
announce $@; $@;
status=$?
if test $status -ne 0; then
args=($@)
say "process ${args[0]} failed with status code $status"
exit $status
fi
}