From: Steven Baltakatei Sandoval Date: Sun, 28 Jun 2020 20:54:04 +0000 (+0000) Subject: feat(exec):Add initial draft of pressure logging script X-Git-Url: https://zdv2.bktei.com/gitweb/EVA-2020-02.git/commitdiff_plain/9df946dc8998a1a108fd9603dd6eb1d7c8936e7d feat(exec):Add initial draft of pressure logging script --- diff --git a/exec/bkplog.sh b/exec/bkplog.sh new file mode 100755 index 0000000..bfa9195 --- /dev/null +++ b/exec/bkplog.sh @@ -0,0 +1,74 @@ +#!/bin/bash + +# Date: 2020-04-10T04:32Z + +# Author: Steven Baltakatei Sandoval + +# License: + +# Description: Logs pressure to a daily log file. Restarts daily at +# UTC midnight. + +# Usage: plog.sh [ sensor script path ] [ output log dir path ] + +echoerr() { echo "$@" 1>&2 ; } # Define echo to stderr function. + +SENSOR_SCRIPT_PATH="$1" # Identify first argument as sensor script path. +DIROUT1="$2" # Identify second argument as output log file directory path. + +SCRIPT_PATH="${0}" # [1] +SCRIPT_BASENAME="$(basename "$SCRIPT_PATH")" +SCRIPT_DIR="$(dirname "$SCRIPT_PATH")" +SCRIPT_TIME_SHORT="$(date +%Y%m%dT%H%M%S%z)" +SCRIPT_DATE_SHORT="$(date +%Y%m%d)" + +SCRIPT_ERROR_LOG_PATH=~/"$SCRIPT_DATE_SHORT""_""$SCRIPT_BASENAME"..error.log + +# Check that time synchronization service ('ntp') exists. Warn if it doesn't. +if command -v ntp 1>/dev/null 2>&1; then echoerr "WARNING: ntp not found. Log timestamps may not be accurate."; fi + +# Main loop +if [ -d "$DIROUT1" ] && [ -f "$SENSOR_SCRIPT_PATH" ] ; then # Check that output directory and sensor script file exist. + while true; do + echoerr "DEBUG:Starting while loop." + + # Update time constants + TIME_CURRENT="$(date --iso-8601=seconds)" ; + #echoerr "DEBUG:TIME_CURRENT is:""$TIME_CURRENT" ; + TIME_CURRENT_SHORT="$(date -d "$TIME_CURRENT" +%Y%m%dT%H%M%S%z)" + #echoerr "DEBUG:TIME_CURRENT_SHORT is""$TIME_CURRENT_SHORT" + DATE_CURRENT="$(date -d "$TIME_CURRENT" --iso-8601=date)" ; + #echoerr "DEBUG:DATE_CURRENT is:""$DATE_CURRENT" ; + DATE_CURRENT_SHORT="$(date -d "$TIME_CURRENT" +%Y%m%d)" ; + #echoerr "DEBUG:DATE_CURRENT is:""$DATE_CURRENT_SHORT" ; + DATE_TOMORROW="$(date -d "$TIME_CURRENT next day" --iso-8601=date)" ; + #echoerr "DEBUG:DATE_TOMORROW is:""$DATE_TOMORROW" ; + TIME_NEXT_MIDNIGHT="$(date -d "$DATE_TOMORROW" --iso-8601=seconds)" ; + #echoerr "DEBUG:TIME_NEXT_MIDNIGHT is:""$TIME_NEXT_MIDNIGHT" ; + ####SECONDS_UNTIL_NEXT_MIDNIGHT="$(( $(date +%s -d "$TIME_NEXT_MIDNIGHT") - $(date +%s -d "$TIME_CURRENT") ))" ; + SECONDS_UNTIL_NEXT_MIDNIGHT="10" # DEBUG 10 second. Hail Satan. + #echoerr "DEBUG:SECONDS_UNTIL_NEXT_MIDNIGHT is:""$SECONDS_UNTIL_NEXT_MIDNIGHT" ; + if [ "$SECONDS_UNTIL_NEXT_MIDNIGHT" -eq 0 ]; then echoerr "WARNING:Is it exactly midnight?" ; continue; fi ; # Exit loop early if equal to 0 because "timeout 0s" never ends. + if [ "$SECONDS_UNTIL_NEXT_MIDNIGHT" -lt 0 ]; then echoerr "ERROR:Time until midnight error." ; exit 1; fi ; # Exit script if equal to 0 because "timeout 0s" never ends. + + # Update output file names. + DIROUTN="$DIROUT1" ; + FILEOUTN="$DATE_CURRENT_SHORT""..""$(hostname)""_pressure.csv" ; + + # DEBUG + echoerr "SECONDS_UNTIL_NEXT_MIDNIGHT:""$SECONDS_UNTIL_NEXT_MIDNIGHT" + echoerr "SENSOR_SCRIPT_PATH :""$SENSOR_SCRIPT_PATH" + echoerr "DIROUTN :""$DIROUTN" + echoerr "FILEOUTN :""$FILEOUTN" + + # Append pressure log until midnight. + timeout "$SECONDS_UNTIL_NEXT_MIDNIGHT""s" python2 "$SENSOR_SCRIPT_PATH" 1>> "$DIROUTN"/"$FILEOUTN" 2>&1 ; # log script data + done + +else + echoerr "$SCRIPT_TIME_SHORT"">Sensor script file not found at: $SENSOR_SCRIPT_PATH or $DIROUT1 not found." + echo "$SCRIPT_TIME_SHORT"">Sensor script file not found at: $SENSOR_SCRIPT_PATH or $DIROUT1 not found." >> "$SCRIPT_ERROR_LOG_PATH" ; +fi + +# == References == +# 1. How to indicate script file name in a bash script. https://stackoverflow.com/a/3588939