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Botspot-Pi-Apps/preload

156 lines
4.2 KiB
Bash

#!/bin/bash
#this generates a yad-friendly app list. This is run every time the gui script is executed.
#if this script detects nothing has changed since last run, then it will echo back the app list that was generated last time.
DIRECTORY="$(readlink -f "$(dirname "$0")")"
function error {
echo -e "\e[91m$1\e[39m" 1>&2
exit 1
}
#determine if host system is 64 bit arm64 or 32 bit armhf
if [ ! -z "$(file "$(readlink -f "/sbin/init")" | grep 64)" ];then
arch=64
elif [ ! -z "$(file "$(readlink -f "/sbin/init")" | grep 32)" ];then
arch=32
else
error "Failed to detect OS CPU architecture! Something is very wrong."
fi
#yad or xlunch format
format="$1"
if [ -z "$format" ];then
format=yad
fi
mkdir -p "${DIRECTORY}/data/preload"
mktimestamps() {
#these directories are checked for changes
checkdirs="${DIRECTORY}/apps
${DIRECTORY}/data/settings
${DIRECTORY}/data/status"
timestamps=''
PREIFS="$IFS"
IFS=$'\n'
for dir in $checkdirs
do
timestamps="$timestamps
${dir}/$(ls -t "$dir" | head -n1)
$(stat -c %Y "${dir}/$(ls -t "$dir" | head -n1)")"
done
IFS="$PREIFS"
#remove first empty newline
timestamps="${timestamps:1}"
}
reloadlist=0
if [ -f "${DIRECTORY}/data/preload/timestamps" ];then
#get modified timestamps for directories
mktimestamps
if [ "$timestamps" == "$(cat "${DIRECTORY}/data/preload/timestamps")" ];then
#if current timestamps and saved timestamps match, then don't reload the list
reloadlist=0
echo "Timestamps match." 1>&2
else
#timestamps don't match, so reload the list
reloadlist=1
echo "Timestamps don"\'"t match" 1>&2
fi
else
#timestamp file not found
reloadlist=1
fi
if [ ! -f "${DIRECTORY}/data/preload/LIST" ];then
echo "list file does not exist." 1>&2
reloadlist=1
fi
if [ $reloadlist == 1 ];then
echo "Generating list..." 1>&2
#get list of apps ----------------------------------- and exclude apps mentioned in hidelist file
APPS="$(echo "$(ls "${DIRECTORY}/apps")" | grep -vxE "$(cat "${DIRECTORY}/data/hidelist" | tr '\n' '|')")"
#APPS="$(echo "$(ls "${DIRECTORY}/apps")")"
#remove apps that are not compatible with OS architecture
PREIFS="$IFS"
IFS=$'\n'
for i in $APPS
do
#if install script doesn't exist -------------------- and if os-specific install script doesn't exist, then...
if [ ! -f "${DIRECTORY}/apps/${i}/install" ] && [ ! -f "${DIRECTORY}/apps/${i}/install-${arch}" ];then
#...remove the app from the list
echo "Removing $i from the list because it is not compatible with your ${arch}-bit OS." 1>&2
APPS="$(echo "$APPS" | grep -vx "$i")"
fi
done
IFS="$PREIFS"
#shuffle the list if enabled
if [ "$(cat "${DIRECTORY}/data/settings/Shuffle App list")" == 'Yes' ];then
APPS="$(echo "$APPS" | shuf)"
fi
if [ "$format" == yad ];then
PREIFS="$IFS"
IFS=$'\n'
LIST=''
for i in $APPS
do
LIST="$LIST$(echo "${DIRECTORY}/icons/$(cat "${DIRECTORY}/data/status/${i}" 2>/dev/null || echo "none").png")
${DIRECTORY}/apps/${i}/icon-24.png
$i
"\("$(cat "${DIRECTORY}/data/status/${i}" 2>/dev/null || echo "uninstalled")"\)" $(echo "$(cat "${DIRECTORY}/apps/${i}/description" || echo "Description unavailable")" | head -n1)
"
done
IFS="$PREIFS"
elif [ "$format" == xlunch ];then
PREIFS="$IFS"
IFS=$'\n'
LIST=''
for i in $APPS
do
LIST="$LIST
${i} "\("$(cat "${DIRECTORY}/data/status/${i}" 2>/dev/null || echo "uninstalled")"\)";${DIRECTORY}/apps/${i}/icon-64.png;${i}"
done
IFS="$PREIFS"
fi
LIST="$(echo -e "$LIST")"
#save entire list string to file for future use
echo "$LIST" > "${DIRECTORY}/data/preload/LIST"
export CACHED_LIST="$LIST"
#save timestamps to file too
mktimestamps
echo "$timestamps" > "${DIRECTORY}/data/preload/timestamps"
else
if [ -z "$CACHED_LIST" ];then
echo "Reading list file..." 1>&2
LIST="$(cat "${DIRECTORY}/data/preload/LIST")"
export CACHED_LIST="$LIST"
else
echo "Reading list variable..." 1>&2
LIST="$CACHED_LIST"
fi
fi
(#put icons in cache
PREIFS="$IFS"
IFS=$'\n'
for icon in $(echo "$LIST" | grep icon-24)
do
cat "$icon" 1>/dev/null
#echo "Putting $icon in cache..." 1>&2
done
IFS="$PREIFS" ) &
echo "$LIST"