-#!/bin/bash
-
-# Desc: Records gps data until midnight
-# Author: Steven Baltakatei Sandoval; License: GPLv3+
-# Usage: bkgpslog --output [output dir]
-
-#==BEGIN Define script parameters==
-PATH="/opt/bktei:$PATH" # Add default baltakatei script install directory to PATH (necessary for other bk scripts)
-SCRIPT_HOSTNAME=$(hostname) # Save hostname of system running this script.
-SCRIPT_VERSION="bkgpslog 0.0.1" # Define version of script.
-SCRIPT_TIME_SHORT="$(date +%Y%m%dT%H%M%S%z)" # Save current date & time in ISO-8601 format.
-SCRIPT_DATE_SHORT="$(date +%Y%m%d)" # Save current date in ISO-8601 format.
-DIROUT="$1" # Define output directory.
-
-declare -Ag appRollCall # Associative array for storing app status
-declare -Ag fileRollCall # Associative array for storing file status
-declare -Ag dirRollCall # Associative array for storing dir status
-
-#===BEGIN Declare local script functions===
-checkapp() {
- # Desc: If arg is a command, save result in assoc array 'appRollCall'
- # Usage: checkapp arg1 arg2 arg3 ...
- # Input: global assoc. array 'appRollCall'
- # Output: adds/updates key(value) to global assoc array 'appRollCall'
- local returnState
- #echo "DEBUG:$(date +%S.%N)..Starting checkapp function."
- #echo "DEBUG:args: $@"
- #echo "DEBUG:returnState:$returnState"
-
- #===Process Args===
- for arg in "$@"; do
- #echo "DEBUG:processing arg:$arg"
- if command -v $arg 1>/dev/null 2>&1; then # Check if arg is a valid command
- appRollCall[$arg]="true";
- #echo "DEBUG:appRollCall[$arg]:"${appRollCall[$arg]}
- if ! [ "$returnState" = "false" ]; then returnState="true"; fi
- else
- appRollCall[$arg]="false"; returnState="false";
- fi
- done
-
- #for key in "${!appRollCall[@]}"; do echo "DEBUG:$key => ${appRollCall[$key]}"; done
- #echo "DEBUG:evaluating returnstate. returnState:"$returnState
-
- #===Determine function return code===
- if [ "$returnState" = "true" ]; then
- #echo "DEBUG:checkapp returns true for $arg";
- return 0;
- else
- #echo "DEBUG:checkapp returns false for $arg";
- return 1;
- fi
-} # Check that app exists
-checkfile() {
- # Desc: If arg is a file path, save result in assoc array 'fileRollCall'
- # Usage: checkfile arg1 arg2 arg3 ...
- # Input: global assoc. array 'fileRollCall'
- # Output: adds/updates key(value) to global assoc array 'fileRollCall';
- # Output: returns 0 if app found, 1 otherwise
- local returnState
-
- #===Process Args===
- for arg in "$@"; do
- #echo "DEBUG:processing arg:$arg"
- if [ -f "$arg" ]; then
- fileRollCall["$arg"]="true";
- #echo "DEBUG:fileRollCall[\"$arg\"]:"${fileRollCall["$arg"]}
- if ! [ "$returnState" = "false" ]; then returnState="true"; fi
- else
- fileRollCall["$arg"]="false"; returnState="false";
- fi
- done
-
- #for key in "${!fileRollCall[@]}"; do echo "DEBUG:fileRollCall key [$key] is:${fileRollCall[$key]}"; done
- #echo "DEBUG:evaluating returnstate. returnState:"$returnState
-
- #===Determine function return code===
- if [ "$returnState" = "true" ]; then
- #echo "DEBUG:checkapp returns true for $arg";
- return 0;
- else
- #echo "DEBUG:checkapp returns false for $arg";
- return 1;
- fi
-} # Check that file exists
-checkdir() {
- # Desc: If arg is a dir path, save result in assoc array 'dirRollCall'
- # Usage: checkdir arg1 arg2 arg3 ...
- # Input: global assoc. array 'dirRollCall'
- # Output: adds/updates key(value) to global assoc array 'dirRollCall';
- # Output: returns 0 if app found, 1 otherwise
- local returnState
-
- #===Process Args===
- for arg in "$@"; do
- #echo "DEBUG:processing arg:$arg"
- if [ -d "$arg" ]; then
- dirRollCall["$arg"]="true";
- #echo "DEBUG:dirRollCall[\"$arg\"]:"${dirRollCall["$arg"]}
- if ! [ "$returnState" = "false" ]; then returnState="true"; fi
- else
- dirRollCall["$arg"]="false"; returnState="false";
- fi
- done
-
- #for key in "${!dirRollCall[@]}"; do echo "DEBUG:dirRollCall key [$key] is:${dirRollCall[$key]}"; done
- #echo "DEBUG:evaluating returnstate. returnState:"$returnState
-
- #===Determine function return code===
- if [ "$returnState" = "true" ]; then
- #echo "DEBUG:checkapp returns true for $arg";
- return 0;
- else
- #echo "DEBUG:checkapp returns false for $arg";
- return 1;
- fi
-} # Check that dir exists
-
-# Yell, Die, Try Three-Fingered Claw technique
-# Ref/Attrib: https://stackoverflow.com/a/25515370
-yell() { echo "$0: $*" >&2; }
-die() { yell "$*"; exit 111; }
-try() { "$@" || die "cannot $*"; }
-
-echoerr() {
- echo "$@" 1>&2; # Define stderr echo function.
-} # Define stderr message function.
-showUsage() {
- echoerr "USAGE:"
- echoerr " bkgpslog.sh [ options ]"
- echoerr
- echoerr "OPTIONS:"
- echoerr " -h, --help"
- echoerr " Display help information."
- echoerr
- echoerr " --version"
- echoerr " Display script version."
- echoerr
- echoerr " -v, --verbose"
- echoerr " Display debugging info."
- echoerr
- echoerr " -o, --output [ directory ]"
- echoerr " Specify output directory to save logs."
-} # Display information on how to use this script.
-showVersion() {
- echoerr "$SCRIPT_VERSION"
-} # Display script version.
-vbm() {
- if [ $OPTION_VERBOSE -eq "true" ]; then
- echoerr "$@"
- fi
-} # Verbose message display function.
-processArguments() {
- while [ ! $# -eq 0 ]; do # While number of arguments ($#) is not (!) equal to (-eq) zero (0).
- echoerr "DEBUG:Starting processArguments while loop."
- echoerr "DEBUG:Provided arguments are:""$@"
- case "$1" in
- --h | --help) showUsage; exit 1;; # Display usage.
- --version) showVersion; exit 1;; # Show version
- --v | --verbose) OPTION_VERBOSE="true"; vbm "DEBUG:Verbose mode enabled.";; # Enable verbose mode.
- --o | --output) if [ -d "$2" ]; then DIROUT="$2"; fi ;; # Define output directory.
- *) echoerr "ERROR: Unrecognized argument."; exit 1;; # Handle unrecognized options.
- esac
- shift
- done
-} # Argument Processing
-timeUntilMidnight(){
- # Desc: Report seconds until midnight
- # Output: stdout: integer seconds until midnight
- # Output: exit code 0 if stdout > 0; 1 if stdout = 0; 2 if stdout < 0
- # Usage: timeUntilMidnight
- # Usage: if ! myTTL="$(timeUntilMidnight)"; then yell "ERROR in if statement"; exit 1; fi
- local returnState
- TIME_CURRENT="$(date --iso-8601=seconds)" ; # Produce `date`-parsable current timestamp with resolution of 1 second.
- TIME_CURRENT_SHORT="$(date -d "$TIME_CURRENT" +%Y%m%dT%H%M%S%z)" # Produce separator-less current timestamp with resolution 1 second.
- DATE_CURRENT="$(date -d "$TIME_CURRENT" --iso-8601=date)" ; # Produce `date`-parsable current timestamp with resolution of 1 day.
- DATE_CURRENT_SHORT="$(date -d "$TIME_CURRENT" +%Y%m%d)" ; # Produce separator-less current timestamp with resolution 1 day.
- DATE_TOMORROW="$(date -d "$TIME_CURRENT next day" --iso-8601=date)" ; # Produce timestamp of tomorrow's date (res. 1 day).
- TIME_NEXT_MIDNIGHT="$(date -d "$DATE_TOMORROW" --iso-8601=seconds)" ; # Produce `date`-parsable timestamp of closest future midnight (res. 1 second).
- SECONDS_UNTIL_NEXT_MIDNIGHT="$(( $(date +%s -d "$TIME_NEXT_MIDNIGHT") - $(date +%s -d "$TIME_CURRENT") ))" ; # Calculate seconds until closest future midnight (res. 1 second).
- if [[ "$SECONDS_UNTIL_NEXT_MIDNIGHT" -gt 0 ]]; then
- returnState="true";
- elif [[ "$SECONDS_UNTIL_NEXT_MIDNIGHT" -eq 0 ]]; then
- returnState="WARNING_ZERO";
- yell "WARNING:Reported time until midnight exactly zero.";
- elif [[ "$SECONDS_UNTIL_NEXT_MIDNIGHT" -lt 0 ]]; then
- returnState="WARNING_NEGATIVE";
- yell "WARNING:Reported time until midnight is negative.";
- fi
-
- try echo "$SECONDS_UNTIL_NEXT_MIDNIGHT"; # Report
-
- #===Determine function return code===
- if [[ "$returnState" = "true" ]]; then
- return 0;
- elif [[ "$returnState" = "WARNING_ZERO" ]]; then
- return 1;
- elif [[ "$returnState" = "WARNING_NEGATIVE" ]]; then
- return 2;
- fi
-} # Report seconds until next midnight
-dateTimeShort(){
- # Desc: Timestamp without separators (YYYYmmddTHHMMSS+zzzz)
- # Usage: dateTimeShort
- # Output: stdout: timestamp (ISO-8601, no separators)
- TIME_CURRENT="$(date --iso-8601=seconds)" ; # Produce `date`-parsable current timestamp with resolution of 1 second.
- TIME_CURRENT_SHORT="$(date -d "$TIME_CURRENT" +%Y%m%dT%H%M%S%z)"; # Produce separator-less current timestamp with resolution 1 second.
- echo "$TIME_CURRENT_SHORT";
-} # Get date&time without separators
-main() {
- processArguments # Process arguments.
- if checkapp gpspipe && checkdir "$DIROUT"; then
- # Determine output file paths
- FILEOUT_NMEA="$(dateTimeShort)".."$SCRIPT_HOSTNAME"_location.nmea ;
- #FILEOUT_GPX="" ;
- #FILEOUT_KML="" ;
-
- # Determine script lifespan (note: exit if <= 0 since 'timeout' runs forever if provided "0s".
- #if ! scriptTTL="$(timeUntilMidnight)"; then yell "ERROR: timeUntilMidnight exit code $?"; exit 1; fi
- scriptTTL="60"; #DEBUG DEBUG DEBUG DEBUG
-
- # Determine buffer lifespan
- bufferTTL="15";
-
- # Record gps data until life ends
- declare debugCounter; debugCounter="0"
- while [[ "$SECONDS" -lt "$scriptTTL" ]]; do
- ((debugCounter++))
- timeout "$bufferTTL""s" gpspipe -r 1>> "$DIROUT"/"$FILEOUT_NMEA""$debugCounter"
- echo "do stuff" 1>&2;
- done
- fi
-} # Main function.
-#===END Declare local script functions===
-#==END Define script parameters==
-
-
-#==BEGIN Perform work and exit==
-main "$@" # Run main function.
-exit 0;
-#==END Perform work and exit==
-
-
-
- #gpspipe -r -d -l -o "$DIROUT1"/"$FILEOUT1" ;
projects / EVA-2020-02.git / blobdiff