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koreader/platform/cervantes/koreader.sh
NiLuJe 70b2564c4b
Ensure we flush everything to disk after an update. (#5685)
WIll stall for longer, but with a visible message (vs. less stalling on
a white screen during the startup and a laggy FM for a while).
2019-12-17 00:28:51 +01:00

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4.5 KiB
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Executable File

#!/bin/sh
export LC_ALL="en_US.UTF-8"
# working directory of koreader
KOREADER_DIR="${0%/*}"
# we're always starting from our working directory
cd "${KOREADER_DIR}" || exit
# update to new version from OTA directory
ko_update_check() {
NEWUPDATE="${KOREADER_DIR}/ota/koreader.updated.tar"
INSTALLED="${KOREADER_DIR}/ota/koreader.installed.tar"
if [ -f "${NEWUPDATE}" ]; then
./fbink -q -y -7 -pmh "Updating KOReader"
# NOTE: See frontend/ui/otamanager.lua for a few more details on how we squeeze a percentage out of tar's checkpoint feature
# NOTE: %B should always be 512 in our case, so let stat do part of the maths for us instead of using %s ;).
FILESIZE="$(stat -c %b "${NEWUPDATE}")"
BLOCKS="$((FILESIZE / 20))"
export CPOINTS="$((BLOCKS / 100))"
# shellcheck disable=SC2016
./tar xf "${NEWUPDATE}" --strip-components=1 --no-same-permissions --no-same-owner --checkpoint="${CPOINTS}" --checkpoint-action=exec='./fbink -q -y -6 -P $(($TAR_CHECKPOINT/$CPOINTS))'
fail=$?
# Cleanup behind us...
if [ "${fail}" -eq 0 ]; then
mv "${NEWUPDATE}" "${INSTALLED}"
./fbink -q -y -6 -pm "Update successful :)"
./fbink -q -y -5 -pm "KOReader will start momentarily . . ."
else
# Huh ho...
./fbink -q -y -6 -pmh "Update failed :("
./fbink -q -y -5 -pm "KOReader may fail to function properly!"
fi
rm -f "${NEWUPDATE}" # always purge newupdate in all cases to prevent update loop
unset BLOCKS CPOINTS
# Ensure everything is flushed to disk before we restart. This *will* stall for a while on slow storage!
sync
fi
}
# if no args were passed to the script, start the FM on public partition.
if [ "$#" -eq 0 ]; then
args="/mnt/public"
else
args="$*"
fi
# NOTE: Keep doing an initial update check, in addition to one during the restart loop, so we can pickup potential updates of this very script...
ko_update_check
# If an update happened, and was successful, reexec
if [ -n "${fail}" ] && [ "${fail}" -eq 0 ]; then
# By now, we know we're in the right directory, and our script name is pretty much set in stone, so we can forgo using $0
exec ./koreader.sh "${args}"
fi
# load our own shared libraries if possible
export LD_LIBRARY_PATH="${KOREADER_DIR}/libs"
# export trained OCR data directory
export TESSDATA_PREFIX="data"
# export dict directory
export STARDICT_DATA_DIR="data/dict"
# export external font directory
export EXT_FONT_DIR="/usr/lib/fonts"
# we keep at most 500k worth of crash log
if [ -e crash.log ]; then
tail -c 500000 crash.log >crash.log.new
mv -f crash.log.new crash.log
fi
# check if QBookApp was started before us, then
# restart the application after leaving KOReader
export STANDALONE="true"
if pkill -0 QBookApp; then
STANDALONE="false"
fi
if [ "${STANDALONE}" != "true" ]; then
stopapp.sh >/dev/null 2>&1
[ -x /etc/init.d/connman ] && /etc/init.d/connman stop
fi
# **magic** values to request shell stuff. It starts at 85,
# any number lower than that will exit this script.
RESTART_KOREADER=85
ENTER_USBMS=86
ENTER_QBOOKAPP=87
RETURN_VALUE="${RESTART_KOREADER}"
# Loop forever until KOReader requests a normal exit.
while [ "${RETURN_VALUE}" -ge "${RESTART_KOREADER}" ]; do
# move dictionaries from external storage to koreader private partition.
find /mnt/public/dict -type f -exec mv -v \{\} /mnt/private/koreader/data/dict \; 2>/dev/null
# run KOReader
./reader.lua "${args}" >>crash.log 2>&1
RETURN_VALUE=$?
# check if KOReader requested to enter in mass storage mode.
if [ "${RETURN_VALUE}" -eq "${ENTER_USBMS}" ]; then
# NOTE: at this point we're sure that the safemode tool
# is recent enough to support the "--force" flag.
safemode storage --force 2>/dev/null
# waiting forever for home button events.
elif [ "${RETURN_VALUE}" -eq "${ENTER_QBOOKAPP}" ]; then
./release-ip.sh
./disable-wifi.sh
[ -x /etc/init.d/connman ] && /etc/init.d/connman start
# (re)start the reading application in the background
restart.sh >/dev/null 2>&1
sleep 2
# loop while BQ app is running.
while pkill -0 QBookApp; do
sleep 10
done
fi
done
if [ "${STANDALONE}" != "true" ]; then
./release-ip.sh
./disable-wifi.sh
[ -x /etc/init.d/connman ] && /etc/init.d/connman start
restart.sh >/dev/null 2>&1
fi