156 lines
3.8 KiB
Text
Executable file
156 lines
3.8 KiB
Text
Executable file
# SPDX-License-Identifier: GPL-2.0
|
|
# Copyright (C) 2016-present Team LibreELEC (https://libreelec.tv)
|
|
|
|
# Need a read/write location, as tmp may not always be available
|
|
mkdir -p /dev/.progress
|
|
rm -f /dev/.progress/*
|
|
|
|
# Show frame-buffer cursor
|
|
showcursor() {
|
|
echo -en "\033[?25h"
|
|
|
|
# show cursor
|
|
if [ -f /sys/devices/virtual/graphics/fbcon/cursor_blink ] ; then
|
|
echo 1 > /sys/devices/virtual/graphics/fbcon/cursor_blink
|
|
fi
|
|
}
|
|
|
|
# Hide frame-buffer cursor
|
|
hidecursor() {
|
|
echo -en "\033[?25l"
|
|
|
|
if [ -f /sys/devices/virtual/graphics/fbcon/cursor_blink ] ; then
|
|
echo 0 > /sys/devices/virtual/graphics/fbcon/cursor_blink
|
|
fi
|
|
}
|
|
|
|
# Start a progress meter
|
|
# $1: spinner, percent, countdown
|
|
# $2: message to display
|
|
# [spinner]
|
|
# $3: optional command to execute
|
|
# $4: optional success completion message (nothing if not specified)
|
|
# $5: optional failure completion message ($4 if not specified)
|
|
# [percent]
|
|
# $3: name of filename to be progress monitored
|
|
# $4: terminal size (in bytes) of $3 when progress is complete
|
|
# $5: optional command to execute
|
|
# $6: optional success message (100% if not specified)
|
|
# $7: optional failure message ($6 if not specified)
|
|
# [countdown]
|
|
# $3: number of seconds to start counting down from
|
|
# $4: optional completion message, default is nothing
|
|
StartProgress() {
|
|
local cmdresult=0
|
|
|
|
# Use files for inter-process communication.
|
|
# This file is used to indicate a metter is running/active
|
|
|
|
echo > /dev/.progress/run
|
|
|
|
case "$1" in
|
|
spinner)
|
|
ProgressTask_Spinner "$2" &
|
|
if [ -n "$3" ]; then
|
|
eval "$3"
|
|
cmdresult=$?
|
|
[ $cmdresult -eq 0 ] && StopProgress "${4}" || StopProgress "${5:-$4}"
|
|
fi
|
|
;;
|
|
percent)
|
|
ProgressTask_Percent "$2" "$3" $4 &
|
|
if [ -n "$5" ]; then
|
|
eval "$5"
|
|
cmdresult=$?
|
|
[ $cmdresult -eq 0 ] && StopProgress "${6}" || StopProgress "${7:-$6}"
|
|
fi
|
|
;;
|
|
countdown)
|
|
ProgressTask_Countdown "$2" $3 "$4"
|
|
;;
|
|
*)
|
|
echo "Unknown spinner type: $1"
|
|
return 1
|
|
;;
|
|
esac
|
|
|
|
return $cmdresult
|
|
}
|
|
|
|
# Stop a progress meter, displaying optional completion message
|
|
# $1: optional completion message (appropriate default used if not specified)
|
|
StopProgress() {
|
|
# Instruct running progress meter to end, showing specified completion message
|
|
echo "${1}" > /dev/.progress/stop
|
|
|
|
# Wait for progress meter to stop running
|
|
while [ -f /dev/.progress/run ]; do
|
|
usleep 250000
|
|
done
|
|
|
|
# Clean up
|
|
rm -f /dev/.progress/stop
|
|
return 0
|
|
}
|
|
|
|
# Use this task for processes of indeterminate duration
|
|
ProgressTask_Spinner() {
|
|
local msg="$1"
|
|
local spinner="|/-\\|/-\\"
|
|
local count=0 donemsg
|
|
|
|
echo -n "${msg} "
|
|
|
|
while [ ! -f /dev/.progress/stop ]; do
|
|
echo -en "\b${spinner:$count:1}"
|
|
usleep 500000
|
|
count=$(((count + 1) % 8))
|
|
done
|
|
|
|
donemsg="$(cat /dev/.progress/stop)"
|
|
echo -e "\b${donemsg:-done}"
|
|
|
|
rm -f /dev/.progress/run
|
|
|
|
exit 0
|
|
}
|
|
|
|
# Use this task when transferring a file of known size
|
|
ProgressTask_Percent() {
|
|
local msg="$1" filename="$2" fsize=$3 csize donemsg
|
|
|
|
echo -n "${msg} "
|
|
|
|
while [ ! -f /dev/.progress/stop ]; do
|
|
[ -f ${filename} ] && csize=$(stat -t "${filename}" | awk '{print $2}') || csize=0
|
|
echo $csize $fsize | awk '{ printf "\b\b\b\b%3d%%", ($1 * 100 / $2) }'
|
|
usleep 250000
|
|
done
|
|
|
|
donemsg="$(cat /dev/.progress/stop)"
|
|
echo -e "\b\b\b\b${donemsg:-100%}"
|
|
|
|
rm -f /dev/.progress/run
|
|
|
|
exit 0
|
|
}
|
|
|
|
# Use this task to countdown a number of seconds
|
|
# (needs more work for durations > 99 seconds)
|
|
ProgressTask_Countdown() {
|
|
local msg="$1" countfrom=$2 donemsg="$3"
|
|
|
|
echo -n "${msg} "
|
|
|
|
while [ ${countfrom} -gt 0 ]; do
|
|
echo ${countfrom} | awk '{ printf "\b\b%2d", $1 }'
|
|
read -r -s -t1 && break
|
|
countfrom=$((countfrom - 1))
|
|
done
|
|
|
|
echo -e "\b\b${donemsg:- }"
|
|
|
|
rm -f /dev/.progress/run
|
|
|
|
return 0
|
|
}
|