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REFACTOR: Refactored libs/watchdog.sh

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* Shortend Code of MAIN section.
* Added function get_conf_devices
* SHELLCHECK: Enabled requires-variable-braces

Signed-off-by: Stephan Wendel <me@stephanwe.de>
This commit is contained in:
Stephan Wendel 2021-12-17 21:44:32 +01:00
parent 1b89b86545
commit a17d063145
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GPG Key ID: F465B83ACBA45639
1 changed files with 35 additions and 32 deletions
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67
libs/watchdog.sh
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@ -11,62 +11,65 @@
#### This File is distributed under GPLv3
####
# shellcheck enable=requires-variable-braces
# Exit upon Errors
set -e
#### Watchdog Functions and Variables
## Do not reuse previous functions!
## Do not reuse functions from other libs/scripts!
# We want watchdog operating independently!
function clean_watchdog {
rm -f $PWD/lost-*
rm -f /tmp/lost-*
}
function webcamd_watchdog {
# Helper Functions
function available {
find ${1} &> /dev/null
echo $?
find "${1}" &> /dev/null
echo "${?}"
}
function lost_dev {
local lostfile
lostfile="$(echo ${1} | awk -F '/' '{print $NF}')"
touch /tmp/lost-${lostfile}
lostfile="$(echo "${1}" | awk -F '/' '{print $NF}')"
touch /tmp/lost-"${lostfile}"
}
function is_lost {
local lostdev
lostdev="$(echo ${1} | awk -F '/' '{print $NF}')"
find /tmp/lost-${lostdev} &> /dev/null
echo $?
lostdev="$(echo "${1}" | awk -F '/' '{print $NF}')"
find /tmp/lost-"${lostdev}" &> /dev/null
echo "${?}"
}
function returned_dev {
local lostdev
lostdev="$(echo ${1} | awk -F '/' '{print $NF}')"
rm -f /tmp/lost-${lostdev} &> /dev/null
lostdev="$(echo "${1}"| awk -F '/' '{print $NF}')"
rm -f /tmp/lost-"${lostdev}" &> /dev/null
}
# local Vars
local get_conf_devices conf_cams avail_cams
# Init empty Arrays
get_conf_devices=()
conf_cams=()
# Grab devices from config file
get_conf_devices=("$(crudini --existing=file --get "${WEBCAMD_CFG}" | \
sed '/webcamd/d' | cut -d ' ' -f2)")
# Construct Array with configured Devices
for gcd in ${get_conf_devices[*]}; do
conf_cams+=("$(crudini --get "${WEBCAMD_CFG}" "cam ${gcd}" "device" \
| awk '{print $1}')")
function get_conf_devices {
local gcd
for i in $(crudini --existing=file --get "${WEBCAMD_CFG}" | \
sed '/webcamd/d' | cut -d ' ' -f2); do
gcd+=("${i}")
done
# Send Message if Device available or returned.
for cc in ${conf_cams[*]}; do
if [ "$(available ${cc})" -ne 0 ] && [ "$(is_lost ${cc})" -ne 0 ]; then
log_msg "WATCHDOG: Lost Device: "${cc}""
lost_dev "${cc}"
elif [ "$(is_lost ${cc})" -eq 0 ] && [ "$(available ${cc})" -eq 0 ]; then
log_msg "WATCHDOG: Device ${cc} returned."
returned_dev "${cc}"
fi
echo "${gcd[@]}"
}
### MAIN
for i in $(get_conf_devices); do
cc="$(crudini --get "${WEBCAMD_CFG}" "cam ${i}" "device" \
| awk '{print $1}')"
if [ "$(available "${cc}")" -ne 0 ] && [ "$(is_lost "${cc}")" -ne 0 ]; then
log_msg "WATCHDOG: Lost Device: '${cc}'"
lost_dev "${cc}"
elif [ "$(is_lost "${cc}")" -eq 0 ] && [ "$(available "${cc}")" -eq 0 ]; then
log_msg "WATCHDOG: Device '${cc}' returned."
returned_dev "${cc}"
fi
done
}