cosmopolitan/build/getlogfmt

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#!/usr/bin/env bash
#-*-mode:sh;indent-tabs-mode:nil;tab-width:2;coding:utf-8-*-┐
#───vi: set net ft=sh ts=2 sts=2 fenc=utf-8 :vi─────────────┘
#
# OVERVIEW
#
# Printf Logger Initializer
#
# DESCRIPTION
#
# This program is invoked once by build/definitions.mk to choose the
# most appropriate format string when logging command invocations.
if [ "$SILENT" = "0" ]; then
printf "''"
else
W1=15
if [ "$TERM" = "dumb" ]; then # e.g. emacs' dismal tty
if [ "$COLUMNS" = "" ]; then
if TPUT=$(command -v tput); then
COLUMNS=$("$TPUT" cols)
else
COLUMNS=80
fi
fi
COLUMNS=$((COLUMNS - 1))
W2=$((COLUMNS - W1))
printf '%%-%ds%%-%ds\\r' "$W1" "$W2"
else
echo ♥cosmo >&2
printf '\\033[F\\033[K%%-%ds%%s\\r\\n' "$W1"
fi
fi