This repository has been archived on 2024-10-17. You can view files and clone it, but cannot push or open issues or pull requests.
MahiroOS-jhalfs/common/progress_bar.sh

52 lines
1.6 KiB
Bash
Executable file

#!/bin/bash
# $Id$
set -e
# Be sure that we know the taget name
[[ -z $1 ]] && exit
TARGET=$1 # Remember the target build we are looking for
declare -r CSI=$'\e[' # DEC terminology, Control Sequence Introducer
declare -r CURSOR_OFF=${CSI}$'?25l'
declare -r CURSOR_ON=${CSI}$'?25h'
declare -r ERASE_LINE=${CSI}$'2K'
declare -r FRAME_OPEN=${CSI}$'2G['
declare -r FRAME_CLOSE=${CSI}$'63G]'
declare -r TS_POSITION=${CSI}$'65G'
declare -a RESET_LINE=${CURSOR_OFF}${ERASE_LINE}${FRAME_OPEN}${FRAME_CLOSE}
declare -a GRAPHIC_STR="| / - \\ + "
declare -i MIN=0 # Start value for minutes
declare -i SEC=0 # Seconds accumulator
declare -i POS=0 # Start value for seconds/cursor position
write_or_exit() {
# make has been killed or failed or run to completion, leave
if ! fuser -v . 2>&1 | grep make >/dev/null ; then
echo -n "${CURSOR_ON}" && exit
fi
# Target build complete, leave. If we are here, make is alive and a new
# package target may has been started. Close this instance of the script.
# The cursor will be restored by echo-finished in makefile-functions.
[[ -f ${TARGET} ]] && exit
# It is safe to write to the screen
echo -n "$1"
}
# This will loop forever.. or overflow, which ever comes first :)
for ((MIN=0; MIN >= 0; MIN++)); do
write_or_exit "${RESET_LINE}${TS_POSITION}${MIN} min. 0 sec. "
# Count the seconds
for ((SEC=1, POS=3; SEC <= 60; SEC++, POS++)); do
for GRAPHIC_CHAR in ${GRAPHIC_STR} ; do
write_or_exit "${CSI}${POS}G${GRAPHIC_CHAR}"
sleep .2
done
# Display the accumulated time.
write_or_exit "${TS_POSITION}${MIN} min. ${SEC} sec. "
done
done
exit