mirror of
https://github.com/koreader/koreader
synced 2024-11-04 12:00:25 +00:00
e0a67bb656
Instead of forking it on every checkpoint. Won't change much in the grand scheme of things, but FIFOs are fun.
248 lines
11 KiB
Bash
Executable File
248 lines
11 KiB
Bash
Executable File
#!/bin/sh
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export LC_ALL="en_US.UTF-8"
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# working directory of koreader
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KOREADER_DIR="${0%/*}"
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# we're always starting from our working directory
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cd "${KOREADER_DIR}" || exit
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# reMarkable 2 check
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IFS= read -r MACHINE_TYPE <"/sys/devices/soc0/machine"
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if [ "reMarkable 2.0" = "${MACHINE_TYPE}" ]; then
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if [ -z "${RM2FB_SHIM}" ]; then
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echo "reMarkable 2 requires RM2FB to work, visit https://github.com/ddvk/remarkable2-framebuffer for instructions how to setup"
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exit 1
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fi
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export KO_DONT_GRAB_INPUT=1
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fi
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# update to new version from OTA directory
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ko_update_check() {
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NEWUPDATE="${KOREADER_DIR}/ota/koreader.updated.tar"
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INSTALLED="${KOREADER_DIR}/ota/koreader.installed.tar"
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if [ -f "${NEWUPDATE}" ]; then
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# If button-listen service is running then stop it during update so that
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# the update can overwite the binary
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systemctl is-active --quiet button-listen
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USING_BUTTON_LISTEN=$?
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if [ ${USING_BUTTON_LISTEN} -eq 0 ]; then
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systemctl stop button-listen
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fi
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./fbink -q -y -7 -pmh "Updating KOReader"
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# Setup the FBInk daemon
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export FBINK_NAMED_PIPE="/tmp/koreader.fbink"
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rm -f "${FBINK_NAMED_PIPE}"
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FBINK_PID="$(./fbink --daemon 1 %KOREADER% -q -y -6 -P 0)"
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# NOTE: See frontend/ui/otamanager.lua for a few more details on how we squeeze a percentage out of tar's checkpoint feature
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# NOTE: %B should always be 512 in our case, so let stat do part of the maths for us instead of using %s ;).
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FILESIZE="$(stat -c %b "${NEWUPDATE}")"
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BLOCKS="$((FILESIZE / 20))"
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export CPOINTS="$((BLOCKS / 100))"
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# shellcheck disable=SC2016
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./tar xf "${NEWUPDATE}" --strip-components=1 --no-same-permissions --no-same-owner --checkpoint="${CPOINTS}" --checkpoint-action=exec='printf "%s" $((TAR_CHECKPOINT / CPOINTS)) > ${FBINK_NAMED_PIPE}'
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fail=$?
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kill -TERM "${FBINK_PID}"
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# Cleanup behind us...
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if [ "${fail}" -eq 0 ]; then
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mv "${NEWUPDATE}" "${INSTALLED}"
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./fbink -q -y -6 -pm "Update successful :)"
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./fbink -q -y -5 -pm "KOReader will start momentarily . . ."
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else
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# Uh oh...
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./fbink -q -y -6 -pmh "Update failed :("
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./fbink -q -y -5 -pm "KOReader may fail to function properly!"
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fi
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rm -f "${NEWUPDATE}" # always purge newupdate to prevent update loops
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unset CPOINTS FBINK_NAMED_PIPE
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unset BLOCKS FILESIZE FBINK_PID
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# Ensure everything is flushed to disk before we restart. This *will* stall for a while on slow storage!
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busybox sync
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if [ ${USING_BUTTON_LISTEN} -eq 0 ]; then
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systemctl start button-listen
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fi
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fi
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}
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# NOTE: Keep doing an initial update check, in addition to one during the restart loop, so we can pickup potential updates of this very script...
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ko_update_check
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# If an update happened, and was successful, reexec
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if [ -n "${fail}" ] && [ "${fail}" -eq 0 ]; then
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# 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 $0
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exec ./koreader.sh "${@}"
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fi
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# load our own shared libraries if possible
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export LD_LIBRARY_PATH="${KOREADER_DIR}/libs:${LD_LIBRARY_PATH}"
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# export trained OCR data directory
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export TESSDATA_PREFIX="data"
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# export dict directory
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export STARDICT_DATA_DIR="data/dict"
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# We'll want to ensure Portrait rotation to allow us to use faster blitting codepaths @ 8bpp,
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# so remember the current one before fbdepth does its thing.
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ORIG_FB_ROTA="$(./fbdepth -o)"
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# In the same vein, swap to 8bpp,
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# because 16bpp is the worst idea in the history of time, as RGB565 is generally a PITA without hardware blitting,
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# and 32bpp usually gains us nothing except a performance hit (we're not Qt5 with its QPainter constraints).
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# The reduced size & complexity should hopefully make things snappier,
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# (and hopefully prevent the JIT from going crazy on high-density screens...).
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# NOTE: Even though both pickel & Nickel appear to restore their preferred fb setup, we'll have to do it ourselves,
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# as they fail to flip the grayscale flag properly. Plus, we get to play nice with every launch method that way.
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# So, remember the current bitdepth, so we can restore it on exit.
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ORIG_FB_BPP="$(./fbdepth -g)"
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echo "Original fb settings: bitdepth = ${ORIG_FB_BPP}, rotation = ${ORIG_FB_ROTA}" >>crash.log 2>&1
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# Sanity check...
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case "${ORIG_FB_BPP}" in
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8) ;;
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16) ;;
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32) ;;
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*)
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# Uh oh? Don't do anything...
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unset ORIG_FB_BPP
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;;
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esac
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# The actual swap is done in a function, because we can disable it in the Developer settings, and we want to honor it on restart.
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ko_do_fbdepth() {
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if [ -n "${KO_DONT_SET_DEPTH}" ]; then
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return
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fi
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# Check if the swap has been disabled...
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if grep -q '\["dev_startup_no_fbdepth"\] = true' 'settings.reader.lua' 2>/dev/null; then
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# Swap back to the original bitdepth (in case this was a restart)
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if [ -n "${ORIG_FB_BPP}" ]; then
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echo "Making sure we're using the original fb bitdepth @ ${ORIG_FB_BPP}bpp & rotation @ ${ORIG_FB_ROTA}" >>crash.log 2>&1
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./fbdepth -d "${ORIG_FB_BPP}" -r "${ORIG_FB_ROTA}" >>crash.log 2>&1
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fi
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else
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# Swap to 8bpp if things look sane
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if [ -n "${ORIG_FB_BPP}" ]; then
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echo "Switching fb bitdepth to 8bpp & rotation to Portrait" >>crash.log 2>&1
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./fbdepth -d 8 -r 1 >>crash.log 2>&1
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fi
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fi
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}
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# we keep at most 500KB worth of crash log
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if [ -e crash.log ]; then
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tail -c 500000 crash.log >crash.log.new
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mv -f crash.log.new crash.log
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fi
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CRASH_COUNT=0
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CRASH_TS=0
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CRASH_PREV_TS=0
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# Because we *want* an initial fbdepth pass ;).
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RETURN_VALUE=85
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while [ ${RETURN_VALUE} -ne 0 ]; do
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# 85 is what we return when asking for a KOReader restart
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if [ ${RETURN_VALUE} -eq 85 ]; then
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# Do an update check now, so we can actually update KOReader via the "Restart KOReader" menu entry ;).
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ko_update_check
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# Do or double-check the fb depth switch, or restore original bitdepth if requested
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ko_do_fbdepth
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fi
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./reader.lua "$@" >>crash.log 2>&1
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RETURN_VALUE=$?
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# Did we crash?
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if [ ${RETURN_VALUE} -ne 0 ] && [ ${RETURN_VALUE} -ne 85 ]; then
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# Increment the crash counter
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CRASH_COUNT=$((CRASH_COUNT + 1))
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CRASH_TS=$(date +'%s')
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# Reset it to a first crash if it's been a while since our last crash...
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if [ $((CRASH_TS - CRASH_PREV_TS)) -ge 20 ]; then
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CRASH_COUNT=1
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fi
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# Check if the user requested to always abort on crash
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if grep -q '\["dev_abort_on_crash"\] = true' 'settings.reader.lua' 2>/dev/null; then
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ALWAYS_ABORT="true"
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# In which case, make sure we pause on *every* crash
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CRASH_COUNT=1
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else
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ALWAYS_ABORT="false"
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fi
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# Show a fancy bomb on screen
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viewWidth=600
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viewHeight=800
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FONTH=16
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eval "$(./fbink -e | tr ';' '\n' | grep -e viewWidth -e viewHeight -e FONTH | tr '\n' ';')"
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# Compute margins & sizes relative to the screen's resolution, so we end up with a similar layout, no matter the device.
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# Height @ ~56.7%, w/ a margin worth 1.5 lines
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bombHeight=$((viewHeight / 2 + viewHeight / 15))
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bombMargin=$((FONTH + FONTH / 2))
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# With a little notice at the top of the screen, on a big gray screen of death ;).
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./fbink -q -b -c -B GRAY9 -m -y 1 "Don't Panic! (Crash n°${CRASH_COUNT} -> ${RETURN_VALUE})"
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if [ ${CRASH_COUNT} -eq 1 ]; then
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# Warn that we're sleeping for a bit...
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./fbink -q -b -O -m -y 2 "KOReader will restart in 15 sec."
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fi
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# U+1F4A3, the hard way, because we can't use \u or \U escape sequences...
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# shellcheck disable=SC2039,SC3003
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./fbink -q -b -O -m -t regular=./fonts/freefont/FreeSerif.ttf,px=${bombHeight},top=${bombMargin} -- $'\xf0\x9f\x92\xa3'
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# And then print the tail end of the log on the bottom of the screen...
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crashLog="$(tail -n 25 crash.log | sed -e 's/\t/ /g')"
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# The idea for the margins being to leave enough room for an fbink -Z bar, small horizontal margins, and a font size based on what 6pt looked like @ 265dpi
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./fbink -q -b -O -t regular=./fonts/droid/DroidSansMono.ttf,top=$((viewHeight / 2 + FONTH * 2 + FONTH / 2)),left=$((viewWidth / 60)),right=$((viewWidth / 60)),px=$((viewHeight / 64)) -- "${crashLog}"
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# So far, we hadn't triggered an actual screen refresh, do that now, to make sure everything is bundled in a single flashing refresh.
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./fbink -q -f -s
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# Cue a lemming's faceplant sound effect!
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{
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echo "!!!!"
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echo "Uh oh, something went awry... (Crash n°${CRASH_COUNT}: $(date +'%x @ %X'))"
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echo "Running on Linux $(uname -r) ($(uname -v))"
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} >>crash.log 2>&1
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if [ ${CRASH_COUNT} -lt 5 ] && [ "${ALWAYS_ABORT}" = "false" ]; then
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echo "Attempting to restart KOReader . . ." >>crash.log 2>&1
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echo "!!!!" >>crash.log 2>&1
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fi
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# Pause a bit if it's the first crash in a while, so that it actually has a chance of getting noticed ;).
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if [ ${CRASH_COUNT} -eq 1 ]; then
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sleep 15
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fi
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# Cycle the last crash timestamp
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CRASH_PREV_TS=${CRASH_TS}
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# But if we've crashed more than 5 consecutive times, exit, because we wouldn't want to be stuck in a loop...
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# NOTE: No need to check for ALWAYS_ABORT, CRASH_COUNT will always be 1 when it's true ;).
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if [ ${CRASH_COUNT} -ge 5 ]; then
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echo "Too many consecutive crashes, aborting . . ." >>crash.log 2>&1
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echo "!!!! ! !!!!" >>crash.log 2>&1
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break
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fi
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# If the user requested to always abort on crash, do so.
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if [ "${ALWAYS_ABORT}" = "true" ]; then
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echo "Aborting . . ." >>crash.log 2>&1
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echo "!!!! ! !!!!" >>crash.log 2>&1
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break
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fi
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else
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# Reset the crash counter if that was a sane exit/restart
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CRASH_COUNT=0
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fi
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done
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# Restore original fb bitdepth if need be...
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# Since we also (almost) always enforce Portrait, we also have to restore the original rotation no matter what ;).
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if [ -n "${ORIG_FB_BPP}" ]; then
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echo "Restoring original fb bitdepth @ ${ORIG_FB_BPP}bpp & rotation @ ${ORIG_FB_ROTA}" >>crash.log 2>&1
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./fbdepth -d "${ORIG_FB_BPP}" -r "${ORIG_FB_ROTA}" >>crash.log 2>&1
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else
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echo "Restoring original fb rotation @ ${ORIG_FB_ROTA}" >>crash.log 2>&1
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./fbdepth -r "${ORIG_FB_ROTA}" >>crash.log 2>&1
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fi
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exit ${RETURN_VALUE}
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