+++ /dev/null
-#!/bin/bash
-
-# Desc: Records gps data until midnight
-# Author: Steven Baltakatei Sandoval; License: GPLv3+
-# Usage: bkgpslog -o [output dir]
-
-#==BEGIN Define script parameters==
-## Logging Behavior parameters
-BUFFER_TTL="60"; # time between file writes
-SCRIPT_TTL="day"; # (day|hour)
-#### TZ="UTC"; export TZ; # Default time zone; overridden by '--time-zone=[str]' option
-DIR_TMP_DEFAULT="/dev/shm"; # Default parent of working directory
-
-SCRIPT_TIME_START=$(date +%Y%m%dT%H%M%S.%N);
-PATH="$HOME/.local/bin:$PATH"; # Add "$(systemd-path user-binaries)" path in case apps saved there
-SCRIPT_HOSTNAME=$(hostname); # Save hostname of system running this script.
-SCRIPT_VERSION="bkgpslog 0.1.0"; # Define version of script.
-
-declare -Ag appRollCall # Associative array for storing app status
-declare -Ag fileRollCall # Associative array for storing file status
-declare -Ag dirRollCall # Associative array for storing dir status
-declare -a recPubKeys # for processArguments function
-declare recipients # for main function
-
-## Initialize variables
-OPTION_VERBOSE=""; OPTION_ENCRYPT=""; OPTION_COMPRESS=""; OPTION_TMPDIR="";
-
-#===BEGIN Declare local script functions===
-checkapp() {
- # Desc: If arg is a command, save result in assoc array 'appRollCall'
- # Usage: checkapp arg1 arg2 arg3 ...
- # Input: global assoc. array 'appRollCall'
- # Output: adds/updates key(value) to global assoc array 'appRollCall'
- local returnState
- #echo "DEBUG:$(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 ! [ "$returnState" = "false" ]; then returnState="true"; fi
- elif [ "$arg" = "" ]; then
- dirRollCall["$arg"]="false"; returnState="false";
- else
- returnState="false";
- fi
- done
-
- #for key in "${!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 [ 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 " -e, --encrypt"
- echoerr " Encrypt output."
- echoerr
- echoerr " -r, --recipient [ pubkey string ]"
- echoerr " Specify recipient. May be age or ssh pubkey."
- echoerr " See https://github.com/FiloSottile/age"
- echoerr
- echoerr " -o, --output [ directory ]"
- echoerr " Specify output directory to save logs."
- echoerr
- echoerr " -c, --compress"
- echoerr " Compress output with gzip (before encryption if enabled)."
- echoerr
- echoerr " -z, --time-zone"
- echoerr " Specify time zone. (ex: \"America/New_York\")"
- echoerr
- echoerr " -t, --temp-dir"
- echoerr " Specify parent directory for temporary working directory."
- echoerr " Default: \"/dev/shm\""
- echoerr
- echoerr "EXAMPLE: (bash script lines)"
- echoerr "/bin/bash bkgpslog -e -c \\"
- echoerr "-r age1mrmfnwhtlprn4jquex0ukmwcm7y2nxlphuzgsgv8ew2k9mewy3rs8u7su5 \\"
- echoerr "-r age1ala848kqrvxc88rzaauc6vc5v0fqrvef9dxyk79m0vjea3hagclswu0lgq \\"
- echoerr "-o ~/Sync/Location"
-} # Display information on how to use this script.
-showVersion() {
- echoerr "$SCRIPT_VERSION"
-} # Display script version.
-vbm() {
- # Usage: vbm "DEBUG:verbose message here"
- # Description: Prints verbose message ("vbm") to stderr if OPTION_VERBOSE is set to "true".
- # Input:
- # - OPTION_VERBOSE variable set by processArguments function. (ex: "true", "false")
- # - "$@" positional arguments fed to this function.
- # Output: stderr
- # Script function dependencies: echoerr
- # External function dependencies: echo
- # Last modified: 2020-04-11T23:57Z
- # Last modified by: Steven Baltakatei Sandoval
- # License: GPLv3+
- # Ref./Attrib:
-
- if [ "$OPTION_VERBOSE" = "true" ]; then
- FUNCTION_TIME=$(date --iso-8601=ns); # Save current time in nano seconds.
- echoerr "[$FUNCTION_TIME] ""$*"; # Display argument text.
- fi
-
- # End function
- return 0; # Function finished.
-} # 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 DIR_OUT="$2"; vbm "DEBUG:DIR_OUT:$DIR_OUT"; shift; fi ;; # Define output directory.
- -e | --encrypt) OPTION_ENCRYPT="true"; vbm "DEBUG:Encrypted output mode enabled.";;
- -r | --recipient) # Add 'age' recipient via public key string
- recPubKeys+=("$2"); vbm "STATUS:pubkey added:""$2"; shift;;
- -c | --compress) OPTION_COMPRESS="true"; vbm "DEBUG:Compressed output mode enabled.";;
- -z | --time-zone) try setTimeZoneEV "$2"; shift;;
- -t | --temp-dir) OPTION_TMPDIR="true" && TMP_DIR_PRIORITY="$2"; shift;;
- *) echoerr "ERROR: Unrecognized argument: $1"; echoerr "STATUS:All arguments:$*"; exit 1;; # Handle unrecognized options.
- esac
- shift
- done
-} # Argument Processing
-setTimeZoneEV(){
- # Desc: Set time zone environment variable TZ
- # Usage: setTimeZoneEV arg1
- # Input: arg1: 'date'-compatible timezone string (ex: "America/New_York")
- # TZDIR env var (optional; default: "/usr/share/zoneinfo")
- # Output: exports TZ
- # exit code 0 on success
- # exit code 1 on incorrect number of arguments
- # exit code 2 if unable to validate arg1
- # Depends: yell, printenv, bash 5
- # Tested on: Debian 10
- ARG1="$1"
- local tzDir returnState
- if ! [[ $# -eq 1 ]]; then
- yell "ERROR:Invalid argument count.";
- return 1;
- fi
-
- # Read TZDIR env var if available
- if printenv TZDIR 1>/dev/null 2>&1; then
- tzDir="$(printenv TZDIR)";
- else
- tzDir="/usr/share/zoneinfo";
- fi
-
- # Validate TZ string
- if ! [[ -f "$tzDir"/"$ARG1" ]]; then
- yell "ERROR:Invalid time zone argument.";
- return 2;
- else
- # Export ARG1 as TZ environment variable
- TZ="$ARG1" && export TZ && returnState="true";
- fi
-
- # Determine function return code
- if [ "$returnState" = "true" ]; then
- return 0;
- fi
-} # Exports TZ environment variable
-timeUntilNextDay(){
- # Desc: Report seconds until next day.
- # Output: stdout: integer seconds until next day
- # Output: exit code 0 if stdout > 0; 1 if stdout = 0; 2 if stdout < 0
- # Usage: timeUntilNextDay
- # Usage: if ! myTTL="$(timeUntilNextDay)"; then yell "ERROR in if statement"; exit 1; fi
- local returnState TIME_CURRENT TIME_NEXT_DAY SECONDS_UNTIL_NEXT_DAY
- TIME_CURRENT="$(date --iso-8601=seconds)" ; # Produce `date`-parsable current timestamp with resolution of 1 second.
- TIME_NEXT_DAY="$(date -d "$TIME_CURRENT next day" --iso-8601=date)"; # Produce timestamp of beginning of tomorrow with resolution of 1 second.
- SECONDS_UNTIL_NEXT_DAY="$(( $(date +%s -d "$TIME_NEXT_DAY") - $(date +%s -d "$TIME_CURRENT") ))" ; # Calculate seconds until closest future midnight (res. 1 second).
- if [[ "$SECONDS_UNTIL_NEXT_DAY" -gt 0 ]]; then
- returnState="true";
- elif [[ "$SECONDS_UNTIL_NEXT_DAY" -eq 0 ]]; then
- returnState="WARNING_ZERO";
- yell "WARNING:Reported time until next day exactly zero.";
- elif [[ "$SECONDS_UNTIL_NEXT_DAY" -lt 0 ]]; then
- returnState="WARNING_NEGATIVE";
- yell "WARNING:Reported time until next day is negative.";
- fi
-
- try echo "$SECONDS_UNTIL_NEXT_DAY"; # Report
-
- #===Determine function return code===
- if [[ "$returnState" = "true" ]]; then
- return 0;
- elif [[ "$returnState" = "WARNING_ZERO" ]]; then
- return 1;
- elif [[ "$returnState" = "WARNING_NEGATIVE" ]]; then
- return 2;
- fi
-} # Report seconds until next day
-timeUntilNextHour(){
- # Desc: Report seconds until next hour
- # Output: stdout: integer seconds until next hour
- # Output: exit code 0 if stdout > 0; 1 if stdout = 0; 2 if stdout < 0
- # Usage: timeUntilNextHour
- # Usage: if ! myTTL="$(timeUntilNextHour)"; then yell "ERROR in if statement"; exit 1; fi
- local returnState TIME_CURRENT TIME_NEXT_HOUR SECONDS_UNTIL_NEXT_HOUR
- TIME_CURRENT="$(date --iso-8601=seconds)"; # Produce `date`-parsable current timestamp with resolution of 1 second.
- TIME_NEXT_HOUR="$(date -d "$TIME_CURRENT next hour" --iso-8601=hours)"; # Produce `date`-parsable current time stamp with resolution of 1 second.
- SECONDS_UNTIL_NEXT_HOUR="$(( $(date +%s -d "$TIME_NEXT_HOUR") - $(date +%s -d "$TIME_CURRENT") ))"; # Calculate seconds until next hour (res. 1 second).
- if [[ "$SECONDS_UNTIL_NEXT_HOUR" -gt 0 ]]; then
- returnState="true";
- elif [[ "$SECONDS_UNTIL_NEXT_HOUR" -eq 0 ]]; then
- returnState="WARNING_ZERO";
- yell "WARNING:Reported time until next hour exactly zero.";
- elif [[ "$SECONDS_UNTIL_NEXT_HOUR" -lt 0 ]]; then
- returnState="WARNING_NEGATIVE";
- yell "WARNING:Reported time until next hour is negative.";
- fi
-
- try echo "$SECONDS_UNTIL_NEXT_HOUR"; # Report
-
- #===Determine function return code===
- if [[ "$returnState" = "true" ]]; then
- return 0;
- elif [[ "$returnState" = "WARNING_ZERO" ]]; then
- return 1;
- elif [[ "$returnState" = "WARNING_NEGATIVE" ]]; then
- return 2;
- fi
-} # Report seconds until next hour
-dateTimeShort(){
- # Desc: Timestamp without separators (YYYYmmddTHHMMSS+zzzz)
- # Usage: dateTimeShort
- # Output: stdout: timestamp (ISO-8601, no separators)
- local TIME_CURRENT TIME_CURRENT_SHORT
- TIME_CURRENT="$(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 "$TIME_CURRENT_SHORT";
-} # Get YYYYmmddTHHMMSS±zzzz
-dateShort(){
- # Desc: Date without separators (YYYYmmdd)
- # Usage: dateShort
- # Output: stdout: date (ISO-8601, no separators)
- local TIME_CURRENT DATE_CURRENT_SHORT
- TIME_CURRENT="$(date --iso-8601=seconds)" ; # Produce `date`-parsable current timestamp with resolution of 1 second.
- DATE_CURRENT_SHORT="$(date -d "$TIME_CURRENT" +%Y%m%d)"; # Produce separator-less current date with resolution 1 day.
- echo "$DATE_CURRENT_SHORT";
-} # Get YYYYmmdd
-timeDuration(){
- # Desc: Output approximate time duration string before given time (default:current date)
- # Ref/Attrib: ISO-8601:2004(E), §4.4.4.2 Representations of time intervals by duration and context information
- # Note: "1 month" ("P1M") is assumed to be "30 days" (see ISO-8601:2004(E), §2.2.1.2)
- # Usage: timeDuration [arg1] ([arg2])
- # Input: arg1: seconds as base 10 integer >= 0 (ex: 3601)
- # arg2: precision level (optional; default=2)
- # Output: stdout: ISO-8601 duration string (ex: "P1H1S", "P2Y10M15DT10H30M20S")
- # Example: 'timeDuration 111111 3' yields 'P1DT6H51M'
- # Depends: date 8 (gnucoreutils)
- local returnState fullHours fullMinutes fullSeconds;
- ARG1="$1";
- ARG2="$2";
- precision=2; # set default precision
- returnState="true"; # set default return state
-
- # Check that between one and two arguments is supplied
- if ! { [[ $# -ge 1 ]] && [[ $# -le 2 ]]; }; then
- yell "ERROR:Invalid number of arguments:$# . Exiting.";
- returnState="ERROR_INPUT"; fi
-
- # Check that arg1 provided
- if [[ $# -ge 1 ]]; then
- # Check that arg1 is a positive integer
- if [[ "$ARG1" =~ ^[[:digit:]]+$ ]]; then
- arg1Valid="true";
- else
- yell "ERROR:ARG1 not a digit.";
- returnState="ERROR_INPUT";
- arg1Valid="false";
- fi
- else
- yell "ERROR:No argument provided. Exiting.";
- exit 1;
- fi
-
- # Consider whether arg2 was provided
- if [[ $# -eq 2 ]]; then
- # Check that the second arg is a positive integer
- if [[ "$ARG2" =~ ^[[:digit:]]+$ ]] && [[ "ARG2" -gt 0 ]]; then
- arg2Valid="true";
- precision="$ARG2";
- else
- yell "ERROR:ARG2 not a positive integer. (is $ARG2 ). Leaving early.";
- returnState="ERROR_INPUT";
- arg2Valid="false";
- fi;
- else
- arg2Valid="false";
- fi;
-
- remainder="$ARG1" ; # seconds
- ## Calculate full years Y, update remainder
- fullYears=$(( remainder / (365*24*60*60) ));
- remainder=$(( remainder - (fullYears*365*24*60*60) ));
- ## Calculate full months M, update remainder
- fullMonths=$(( remainder / (30*24*60*60) ));
- remainder=$(( remainder - (fullMonths*30*24*60*60) ));
- ## Calculate full days D, update remainder
- fullDays=$(( remainder / (24*60*60) ));
- remainder=$(( remainder - (fullDays*24*60*60) ));
- ## Calculate full hours H, update remainder
- fullHours=$(( remainder / (60*60) ));
- remainder=$(( remainder - (fullHours*60*60) ));
- ## Calculate full minutes M, update remainder
- fullMinutes=$(( remainder / (60) ));
- remainder=$(( remainder - (fullMinutes*60) ));
- ## Calculate full seconds S, update remainder
- fullSeconds=$(( remainder / (1) ));
- remainder=$(( remainder - (remainder*1) ));
- ## Check which fields filled
- if [[ $fullYears -gt 0 ]]; then hasYears="true"; else hasYears="false"; fi
- if [[ $fullMonths -gt 0 ]]; then hasMonths="true"; else hasMonths="false"; fi
- if [[ $fullDays -gt 0 ]]; then hasDays="true"; else hasDays="false"; fi
- if [[ $fullHours -gt 0 ]]; then hasHours="true"; else hasHours="false"; fi
- if [[ $fullMinutes -gt 0 ]]; then hasMinutes="true"; else hasMinutes="false"; fi
- if [[ $fullSeconds -gt 0 ]]; then hasSeconds="true"; else hasSeconds="false"; fi
-
- ## Determine which fields to display (see ISO-8601:2004 §4.4.3.2)
- witherPrecision="false"
-
- ### Years
- if $hasYears && [[ $precision -gt 0 ]]; then
- displayYears="true";
- witherPrecision="true";
- else
- displayYears="false";
- fi;
- if $witherPrecision; then ((precision--)); fi;
-
- ### Months
- if $hasMonths && [[ $precision -gt 0 ]]; then
- displayMonths="true";
- witherPrecision="true";
- else
- displayMonths="false";
- fi;
- if $witherPrecision && [[ $precision -gt 0 ]]; then
- displayMonths="true";
- fi;
- if $witherPrecision; then ((precision--)); fi;
-
- ### Days
- if $hasDays && [[ $precision -gt 0 ]]; then
- displayDays="true";
- witherPrecision="true";
- else
- displayDays="false";
- fi;
- if $witherPrecision && [[ $precision -gt 0 ]]; then
- displayDays="true";
- fi;
- if $witherPrecision; then ((precision--)); fi;
-
- ### Hours
- if $hasHours && [[ $precision -gt 0 ]]; then
- displayHours="true";
- witherPrecision="true";
- else
- displayHours="false";
- fi;
- if $witherPrecision && [[ $precision -gt 0 ]]; then
- displayHours="true";
- fi;
- if $witherPrecision; then ((precision--)); fi;
-
- ### Minutes
- if $hasMinutes && [[ $precision -gt 0 ]]; then
- displayMinutes="true";
- witherPrecision="true";
- else
- displayMinutes="false";
- fi;
- if $witherPrecision && [[ $precision -gt 0 ]]; then
- displayMinutes="true";
- fi;
- if $witherPrecision; then ((precision--)); fi;
-
- ### Seconds
-
- if $hasSeconds && [[ $precision -gt 0 ]]; then
- displaySeconds="true";
- witherPrecision="true";
- else
- displaySeconds="false";
- fi;
- if $witherPrecision && [[ $precision -gt 0 ]]; then
- displaySeconds="true";
- fi;
- if $witherPrecision; then ((precision--)); fi;
-
-
-
- ## Determine whether or not the "T" separator is needed to separate date and time elements
- if ( $displayHours || $displayMinutes || $displaySeconds); then
- displayDateTime="true"; else displayDateTime="false"; fi
-
- ## Construct duration output string
- OUTPUT="P"
- if $displayYears; then
- OUTPUT=$OUTPUT$fullYears"Y"; fi
- if $displayMonths; then
- OUTPUT=$OUTPUT$fullMonths"M"; fi
- if $displayDays; then
- OUTPUT=$OUTPUT$fullDays"D"; fi
- if $displayDateTime; then
- OUTPUT=$OUTPUT"T"; fi
- if $displayHours; then
- OUTPUT=$OUTPUT$fullHours"H"; fi
- if $displayMinutes; then
- OUTPUT=$OUTPUT$fullMinutes"M"; fi
- if $displaySeconds; then
- OUTPUT=$OUTPUT$fullSeconds"S"; fi
-
- ## Output duration string to stdout
- if [[ "$returnState" = "true" ]]; then echo "$OUTPUT"; fi
-
- #===Determine function return code===
- if [ "$returnState" = "true" ]; then
- return 0;
- else
- echo "$returnState" 1>&2;
- return 1;
- fi
-
-} # Get duration (ex: PT10M4S )
-displayMissing() {
- # Desc: Displays missing apps, files, and dirs
- # Usage: displayMissing
- # Input: associative arrays: appRollCall, fileRollCall, dirRollCall
- # Output: stderr messages
- #==BEGIN Display errors==
- #===BEGIN Display Missing Apps===
- missingApps="Missing apps :"
- #for key in "${!appRollCall[@]}"; do echo "DEBUG:$key => ${appRollCall[$key]}"; done
- for key in "${!appRollCall[@]}"; do
- value="${appRollCall[$key]}"
- if [ "$value" = "false" ]; then
- #echo "DEBUG:Missing apps: $key => $value";
- missingApps="$missingApps""$key "
- appMissing="true"
- fi
- done
- if [ "$appMissing" = "true" ]; then # Only indicate if an app is missing.
- echo "$missingApps" 1>&2;
- fi
- #===END Display Missing Apps===
-
- #===BEGIN Display Missing Files===
- missingFiles="Missing files:"
- #for key in "${!fileRollCall[@]}"; do echo "DEBUG:$key => ${fileRollCall[$key]}"; done
- for key in "${!fileRollCall[@]}"; do
- value="${fileRollCall[$key]}"
- if [ "$value" = "false" ]; then
- #echo "DEBUG:Missing files: $key => $value";
- missingFiles="$missingFiles""$key "
- fileMissing="true"
- fi
- done
- if [ "$fileMissing" = "true" ]; then # Only indicate if an app is missing.
- echo "$missingFiles" 1>&2;
- fi
- #===END Display Missing Files===
-
- #===BEGIN Display Missing Directories===
- missingDirs="Missing dirs:"
- #for key in "${!dirRollCall[@]}"; do echo "DEBUG:$key => ${dirRollCall[$key]}"; done
- for key in "${!dirRollCall[@]}"; do
- value="${dirRollCall[$key]}"
- if [ "$value" = "false" ]; then
- #echo "DEBUG:Missing dirs: $key => $value";
- missingDirs="$missingDirs""$key "
- dirMissing="true"
- fi
- done
- if [ "$dirMissing" = "true" ]; then # Only indicate if an dir is missing.
- echo "$missingDirs" 1>&2;
- fi
- #===END Display Missing Directories===
-
- #==END Display errors==
-} # Display missing apps, files, dirs
-setScriptTTL() {
- #Desc: Sets script TTL
- #Usage: setScriptTTL arg1
- #Input: arg1: "day" or "hour"
- #Output: scriptTTL
- #Depends: timeUntilNextHour or timeUntilNextDay
- local ARG1
- ARG1="$1"
- if [[ "$ARG1" = "day" ]]; then
- # Set script lifespan to end at start of next day
- if ! scriptTTL="$(timeUntilNextDay)"; then
- if [[ "$scriptTTL" -eq 0 ]]; then
- ((scriptTTL++)); # Add 1 because 0 would cause 'timeout' to never timeout.
- else
- yell "ERROR: timeUntilNextDay exit code $?"; exit 1;
- fi;
- fi;
- elif [[ "$ARG1" = "hour" ]]; then
- # Set script lifespan to end at start of next hour
- if ! scriptTTL="$(timeUntilNextHour)"; then
- if [[ "$scriptTTL" -eq 0 ]]; then
- ((scriptTTL++)); # Add 1 because 0 would cause 'timeout' to never timeout.
- else
- yell "ERROR: timeUntilNextHour exit code $?"; exit 1;
- fi;
- fi;
- else
- yell "ERROR:Invalid argument for setScriptTTL function."; exit 1;
- fi
-} # Seconds until next (day|hour).
-main() {
- processArguments "$@" # Process arguments.
-
- # Determine working directory
- ## Set DIR_TMP_PARENT to user-specified value if specified
- if [[ "$OPTION_TMPDIR" = "true" ]]; then
- if [[ -d "$TMP_DIR_PRIORITY" ]]; then
- DIR_TMP_PARENT="$OPTION_TMPDIR";
- else
- yell "WARNING:Specified temporary working directory not valid:$OPTION_TMP_DIR";
- exit 1;
- fi
- fi
-
- ## Set DIR_TMP_PARENT to default or fallback otherwise
- if [[ -d "$DIR_TMP_DEFAULT" ]]; then
- DIR_TMP_PARENT="$DIR_TMP_DEFAULT";
- elif [[ -d /tmp ]]; then
- yell "WARNING:/dev/shm not available. Falling back to /tmp .";
- DIR_TMP_PARENT="/tmp";
- else
- yell "ERROR:No valid working directory available. Exiting.";
- exit 1;
- fi
-
- ## Set DIR_TMP using DIR_TMP_PARENT and nonce (SCRIPT_TIME_START)
- DIR_TMP="$DIR_TMP_PARENT"/"$SCRIPT_TIME_START""..bkgpslog" && vbm "DEBUG:Set DIR_TMP to:$DIR_TMP"; # Note: removed at end of main().
-
- # Set output encryption and compression option strings
- if [[ "$OPTION_ENCRYPT" = "true" ]]; then # Check if encryption option active.
- if checkapp age; then # Check that age is available.
- for pubkey in "${recPubKeys[@]}"; do # Validate recipient pubkey strings by forming test message
- vbm "DEBUG:Testing pubkey string:$pubkey"
- if echo "butts" | age -a -r "$pubkey" 1>/dev/null; then
- # Form age recipient string
- recipients="$recipients""-r $pubkey ";
- vbm "STATUS:Added pubkey for forming age recipient string:""$pubkey";
- vbm "DEBUG:recipients:""$recipients";
- else
- yell "ERROR:Exit code ""$?"". Invalid recipient pubkey string. Exiting."; exit 1;
- fi
- done
- vbm "DEBUG:Finished processing recPubKeys array";
- # Form age command string
- CMD_ENCRYPT="age ""$recipients ";
- CMD_ENCRYPT_SUFFIX=".age";
- else
- yell "ERROR:Encryption enabled but \"age\" not found. Exiting."; exit 1;
- fi
- else
- CMD_ENCRYPT="tee /dev/null ";
- CMD_ENCRYPT_SUFFIX="";
- vbm "DEBUG:Encryption not enabled."
- fi
- if [[ "$OPTION_COMPRESS" = "true" ]]; then # Check if compression option active
- if checkapp gzip; then # Check if gzip available
- CMD_COMPRESS="gzip ";
- CMD_COMPRESS_SUFFIX=".gz";
- else
- yell "ERROR:Compression enabled but \"gzip\" not found. Exiting."; exit 1;
- fi
- else
- CMD_COMPRESS="tee /dev/null ";
- CMD_COMPRESS_SUFFIX="";
- vbm "DEBUG:Compression not enabled."
- fi
-
- # Check that critical apps and dirs are available, displag missing ones.
- if ! checkapp gpspipe tar && ! checkdir "$DIR_OUT" "/dev/shm"; then
- yell "ERROR:Critical components missing.";
- displayMissing; yell "Exiting."; exit 1; fi
-
- # Set script lifespan
- setScriptTTL "$SCRIPT_TTL";
-
- # File name substring: encoded bufferTTL
- bufferTTL_STR="$(timeDuration $BUFFER_TTL)";
-
- # Init temp working dir
- try mkdir "$DIR_TMP" && vbm "DEBUG:Working dir creatd at:$DIR_TMP";
-
- # Initialize 'tar' archive
- ## Define output tar path (note: each day gets *one* tar file (Ex: "20200731..hostname_location.[.gpx.gz].tar"))
- PATHOUT_TAR="$DIR_OUT"/"$(dateShort)".."$SCRIPT_HOSTNAME""_location""$CMD_COMPRESS_SUFFIX""$CMD_ENCRYPT_SUFFIX".tar && \
- vbm "STATUS:Set PATHOUT_TAR to:$PATHOUT_TAR";
- ## Write bkgpslog version to DIR_TMP/VERSION
- FILEOUT_VERSION="$(dateTimeShort)..VERSION";
- PATHOUT_VERSION="$DIR_TMP"/"$FILEOUT_VERSION";
- echo "$(dateTimeShort):$(basename "$0")"" Version:""$SCRIPT_VERSION" >> "$PATHOUT_VERSION" && vbm "DEBUG:VERSION created:$PATHOUT_VERSION";
- ## Check if PATHOUT_TAR already exists.
- if [[ -f "$PATHOUT_TAR" ]]; then
- vbm "STATUS:Output tar already exists:$PATHOUT_TAR";
- ### Check if preexisting tar is appendable.
- FILEOUT_APPENDTEST="$(dateTimeShort)..RESUMING_LOGGING_SESSION.txt";
- PATHOUT_APPENDTEST="$DIR_TMP"/"$FILEOUT_APPENDTEST" && \
- vbm "DEBUG:Set PATHOUT_APPENDTEST to:$PATHOUT_APPENDTEST";
- echo "$(dateTimeShort):""$(basename "$0")"" version $SCRIPT_VERSION resuming logging session." >> "$PATHOUT_APPENDTEST" && \
- vbm "DEBUG:""$PATHOUT_APPENDTEST"" created."
- if ! tar --append --directory="$DIR_TMP" --file="$PATHOUT_TAR" "$FILEOUT_APPENDTEST"; then
- ### If not appendable, label tar broken, move tar, proceed.
- mv "$PATHOUT_TAR" "${PATHOUT_TAR%.*}""-broken$(dateTimeShort)".tar && \
- vbm "DEBUG:tar not writable, moving out of the way $PATHOUT_TAR";
- fi
- else
- vbm "STATUS:Output tar does not already exist. Creating:$PATHOUT_TAR"
- ### If (no preexisting|appendable) tar found, create empty tar archive at PATHOUT_TAR
- try tar --create --directory="$DIR_TMP" --file="$PATHOUT_TAR" --files-from=/dev/null && \
- vbm "DEBUG:Empty tar created at:$PATHOUT_TAR";
- fi
- ## Append VERSION file to PATHOUT_TAR
- try tar --append --directory="$DIR_TMP" --file="$PATHOUT_TAR" "$FILEOUT_VERSION" && \
- vbm "DEBUG:VERSION added to $PATHOUT_TAR";
-
- # Record gps data until script lifespan ends
- declare debugCounter; debugCounter="0"; # set debug counter
- while [[ "$SECONDS" -lt "$scriptTTL" ]]; do
- timeBufferStart="$(dateTimeShort)"; # Note start time
- # Determine file paths (time is start of buffer period)
- FILEOUT_BASENAME="$timeBufferStart""--""$bufferTTL_STR""..""$SCRIPT_HOSTNAME""_location" && vbm "STATUS:Set FILEOUT_BASENAME to:$FILEOUT_BASENAME";
- ## Files saved to DIR_TMP
- PATHOUT_NMEA="$DIR_TMP"/"$FILEOUT_BASENAME".nmea"$CMD_COMPRESS_SUFFIX""$CMD_ENCRYPT_SUFFIX" && vbm "STATUS:Set PATHOUT_NMEA to:$PATHOUT_NMEA";
- PATHOUT_GPX="$DIR_TMP"/"$FILEOUT_BASENAME".gpx"$CMD_COMPRESS_SUFFIX""$CMD_ENCRYPT_SUFFIX" && vbm "STATUS:Set PATHOUT_GPX to:$PATHOUT_GPX";
- PATHOUT_KML="$DIR_TMP"/"$FILEOUT_BASENAME".kml"$CMD_COMPRESS_SUFFIX""$CMD_ENCRYPT_SUFFIX" && vbm "STATUS:Set PATHOUT_KML to:$PATHOUT_KML";
- ## Files saved to disk (DIR_OUT)
- ### one file per day (Ex: "20200731..hostname_location.[.gpx.gz].tar")
- PATHOUT_TAR="$DIR_OUT"/"$(dateShort)".."$SCRIPT_HOSTNAME""_location""$CMD_COMPRESS_SUFFIX""$CMD_ENCRYPT_SUFFIX".tar && \
- vbm "STATUS:Set PATHOUT_TAR to:$PATHOUT_TAR"
- # Define GPS conversion commands
- CMD_CONV_NMEA="tee /dev/null " && vbm "STATUS:Set CMD_CONV_NMEA to:$CMD_CONV_NMEA"; # tee as passthrough
- CMD_CONV_GPX="gpsbabel -i nmea -f - -o gpx -F -" && vbm "STATUS:Set CMD_CONV_GPX to:$CMD_CONV_GPX"; # convert NMEA to GPX
- CMD_CONV_KML="gpsbabel -i nmea -f - -o kml -F -" && vbm "STATUS:Set CMD_CONV_KML to:$CMD_CONV_KML"; # convert NMEA to KML
- # Fill Bash variable buffer
- bufferBash="$(timeout "$BUFFER_TTL""s" gpspipe -r)" && vbm "STATUS:Successfully filled bufferBash variable with gpspipe data."; # Record gpspipe nmea data to buffer for bufferTTL seconds
- # Process bufferBash, save secured chunk set to DIR_TMP
- vbm "STATUS:Beginning to save data to $DIR_TMP";
- echo "$bufferBash" | $CMD_CONV_NMEA | $CMD_COMPRESS | $CMD_ENCRYPT > "$PATHOUT_NMEA" & # Create NMEA file (secured if requested)
- echo "$bufferBash" | $CMD_CONV_GPX | $CMD_COMPRESS | $CMD_ENCRYPT > "$PATHOUT_GPX" & # Create GPX file (secured if requested)
- echo "$bufferBash" | $CMD_CONV_KML | $CMD_COMPRESS | $CMD_ENCRYPT > "$PATHOUT_KML" & # Create KML file (secured if requested)
- # Append each secured chunk in memory dir (DIR_TMP) to file on disk (PATHOUT_TAR in DIR_OUT)
- vbm "STATUS:DIR_TMP :$DIR_TMP";
- vbm "STATUS:PATHOUT_TAR :$PATHOUT_TAR";
- vbm "STATUS:PATHOUT_NMEA:$PATHOUT_NMEA";
- vbm "STATUS:PATHOUT_NMEA:$PATHOUT_GPX";
- vbm "STATUS:PATHOUT_NMEA:$PATHOUT_KML";
- try tar --append --directory="$DIR_TMP" --file="$PATHOUT_TAR" "$(basename "$PATHOUT_NMEA")" && \
- vbm "DEBUG:Appended NMEA location data $PATHOUT_NMEA to $PATHOUT_TAR";
- try tar --append --directory="$DIR_TMP" --file="$PATHOUT_TAR" "$(basename "$PATHOUT_GPX")" && \
- vbm "DEBUG:Appended GPX location data $PATHOUT_GPX to $PATHOUT_TAR";
- try tar --append --directory="$DIR_TMP" --file="$PATHOUT_TAR" "$(basename "$PATHOUT_KML")" && \
- vbm "DEBUG:Appended KML location $PATHOUT_KML to $PATHOUT_TAR";
- # Remove secured chunks from DIR_TMP
- try rm "$PATHOUT_NMEA" "$PATHOUT_GPX" "$PATHOUT_KML";
- # Reset buffer and filenames
- unset bufferBash FILEOUT_BASENAME PATHOUT_NMEA PATHOUT_GPX PATHOUT_KML PATHOUT_TAR timeBufferStart;
- vbm "DEBUG:Completed buffer session $debugCounter ." 1>&2;
- ((debugCounter++))
- done
-
- # Remove DIR_TMP
- try rm -r "$DIR_TMP";
-
- vbm "STATUS:Main function finished."
-} # 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==
projects / EVA-2020-02.git / blobdiff