# Desc: Records gps data until midnight
# Author: Steven Baltakatei Sandoval; License: GPLv3+
-# Usage: bkgpslog --output [output dir]
+# Usage: bkgpslog -o [output dir]
#==BEGIN Define script parameters==
-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 0.0.1" # 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.
+## 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="0.3.1"; # Define version of script.
+SCRIPT_NAME="bkgpslog"; # Define basename of script file.
+SCRIPT_URL="https://gitlab.com/baltakatei/ninfacyzga-01"; # Define wesite hosting this script.
+AGE_VERSION="1.0.0-beta2"; # Define version of age (encryption program)
+AGE_URL="https://github.com/FiloSottile/age/releases/tag/v1.0.0-beta2"; # Define website hosting age.
declare -Ag appRollCall # Associative array for storing app status
declare -Ag fileRollCall # Associative array for storing file 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'
echoerr " Encrypt output."
echoerr
echoerr " -r, --recipient [ pubkey string ]"
- echoerr " Specify recipient."
+ 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 " -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 \\"
-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="$2"; vbm "DEBUG:DIROUT:$DIROUT"; shift; fi ;; # Define output directory.
+ -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 "pubkey added:""$2"; shift;;
+ recPubKeys+=("$2"); vbm "STATUS:pubkey added:""$2"; shift;;
-c | --compress) OPTION_COMPRESS="true"; vbm "DEBUG:Compressed output mode enabled.";;
- *) echoerr "ERROR: Unrecognized argument."; exit 1;; # Handle unrecognized options.
+ -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.
+ # Version: 1.0.0
# 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="$(timeUntilNextDay)"; then yell "ERROR in if statement"; exit 1; fi
+ # Depends: date 8, echo 8, yell, try
+
local returnState TIME_CURRENT TIME_NEXT_DAY SECONDS_UNTIL_NEXT_DAY
+
TIME_CURRENT="$(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";
+ returnState="warning_zero";
yell "WARNING:Reported time until next day exactly zero.";
elif [[ "$SECONDS_UNTIL_NEXT_DAY" -lt 0 ]]; then
- returnState="WARNING_NEGATIVE";
+ returnState="warning_negative";
yell "WARNING:Reported time until next day is negative.";
fi
try echo "$SECONDS_UNTIL_NEXT_DAY"; # Report
- #===Determine function return code===
+ # Determine function return code
if [[ "$returnState" = "true" ]]; then
return 0;
- elif [[ "$returnState" = "WARNING_ZERO" ]]; then
+ elif [[ "$returnState" = "warning_zero" ]]; then
return 1;
- elif [[ "$returnState" = "WARNING_NEGATIVE" ]]; then
+ elif [[ "$returnState" = "warning_negative" ]]; then
return 2;
fi
} # Report seconds until next day
timeUntilNextHour(){
# Desc: Report seconds until next hour
+ # Version 1.0.0
# Output: stdout: integer seconds until next hour
# Output: exit code 0 if stdout > 0; 1 if stdout = 0; 2 if stdout < 0
# Usage: timeUntilNextHour
# Usage: if ! myTTL="$(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 "$TIME_CURRENT next hour" --iso-8601=hours)"; # Produce `date`-parsable current time stamp with resolution of 1 second.
if [[ "$SECONDS_UNTIL_NEXT_HOUR" -gt 0 ]]; then
returnState="true";
elif [[ "$SECONDS_UNTIL_NEXT_HOUR" -eq 0 ]]; then
- returnState="WARNING_ZERO";
+ returnState="warning_zero";
yell "WARNING:Reported time until next hour exactly zero.";
elif [[ "$SECONDS_UNTIL_NEXT_HOUR" -lt 0 ]]; then
- returnState="WARNING_NEGATIVE";
+ returnState="warning_negative";
yell "WARNING:Reported time until next hour is negative.";
fi
try echo "$SECONDS_UNTIL_NEXT_HOUR"; # Report
- #===Determine function return code===
+ # Determine function return code
if [[ "$returnState" = "true" ]]; then
return 0;
- elif [[ "$returnState" = "WARNING_ZERO" ]]; then
+ elif [[ "$returnState" = "warning_zero" ]]; then
return 1;
- elif [[ "$returnState" = "WARNING_NEGATIVE" ]]; then
+ elif [[ "$returnState" = "warning_negative" ]]; then
return 2;
fi
} # Report seconds until next hour
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
+} # 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: Given seconds, output ISO-8601 duration string
+ # 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 [1:seconds] ([2:precision])
+ # Version: 1.0.3
+ # 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")
+ # exit code 0: success
+ # exit code 1: error_input
+ # exit code 2: error_unknown
+ # Example: 'timeDuration 111111 3' yields 'P1DT6H51M'
+ # Depends: date 8 (gnucoreutils), yell,
+ local returnState argSeconds argPrecision remainder precision witherPrecision
+ local fullYears fullMonths fullDays fullHours fullMinutes fullSeconds
+ local displayYears displayMonths displayDays displayHours displayMinutes displaySeconds
+ local hasYears hasMonths hasDays hasHours hasMinutes hasSeconds
+
+ argSeconds="$1"; # read arg1 (seconds)
+ argPrecision="$2"; # read arg2 (precision)
+ precision=2; # set default precision
+
+ # 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 argSeconds provided
+ if [[ $# -ge 1 ]]; then
+ ## Check that argSeconds is a positive integer
+ if [[ "$argSeconds" =~ ^[[:digit:]]+$ ]]; then
+ :
+ else
+ yell "ERROR:argSeconds not a digit.";
+ returnState="error_input";
+ fi
+ else
+ yell "ERROR:No argument provided. Exiting.";
+ exit 1;
+ fi
+
+ # Consider whether argPrecision was provided
+ if [[ $# -eq 2 ]]; then
+ # Check that argPrecision is a positive integer
+ if [[ "$argPrecision" =~ ^[[:digit:]]+$ ]] && [[ "$argPrecision" -gt 0 ]]; then
+ precision="$argPrecision";
+ else
+ yell "ERROR:argPrecision not a positive integer. (is $argPrecision ). Leaving early.";
+ returnState="error_input";
+ fi;
+ else
+ :
+ fi;
+
+ remainder="$argSeconds" ; # 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$fullSeconds"S"; fi
+
+ ## Output duration string to stdout
+ echo "$OUTPUT" && returnState="true";
+
+ #===Determine function return code===
+ if [ "$returnState" = "true" ]; then
+ return 0;
+ elif [ "$returnState" = "error_input" ]; then
+ yell "ERROR:input";
+ return 1;
+ else
+ yell "ERROR:Unknown";
+ return 2;
+ 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).
+checkMakeTar() {
+ # Desc: Checks that a valid tar archive exists, creates one otherwise
+ # Usage: checkMakeTar [ path ]
+ # Version: 1.0.1
+ # Input: arg1: path of tar archive
+ # Output: exit code 0 : tar readable
+ # exit code 1 : tar missing; created
+ # exit code 2 : tar not readable; moved; replaced
+ # Depends: try, tar, date
+ local PATH_TAR returnFlag0 returnFlag1 returnFlag2
+ PATH_TAR="$1"
+
+ # Check if file is a valid tar archive
+ if tar --list --file="$PATH_TAR" 1>/dev/null 2>&1; then
+ ## T1: return success
+ returnFlag0="tar valid";
+ else
+ ## F1: Check if file exists
+ if [[ -f "$PATH_TAR" ]]; then
+ ### T: Rename file
+ try mv "$PATH_TAR" "$PATH_TAR""--broken--""$(date +%Y%m%dT%H%M%S)" && \
+ returnFlag1="tar moved";
+ else
+ ### F: -
+ :
+ fi
+ ## F2: Create tar archive, return 0
+ try tar --create --file="$PATH_TAR" --files-from=/dev/null && \
+ returnFlag2="tar created";
+ fi
+
+ # Determine function return code
+ if [[ "$returnFlag0" = "tar valid" ]]; then
+ return 0;
+ elif [[ "$returnFlag2" = "tar created" ]] && ! [[ "$returnFlag1" = "tar moved" ]]; then
+ return 1; # tar missing so created
+ elif [[ "$returnFlag2" = "tar created" ]] && [[ "$returnFlag1" = "tar moved" ]]; then
+ return 2; # tar not readable so moved; replaced
+ fi
+} # checks if arg1 is tar; creates one otherwise
+appendArgTar(){
+ # Desc: Writes first argument to temporary file with arguments as options, then appends file to tar
+ # Usage: writeArg "$(echo "Data to be written.")" [name of file to be inserted] [tar path] [temp dir] ([cmd1] [cmd2] [cmd3] [cmd4]...)
+ # Version: 1.0.0
+ # Input: arg1: data to be written
+ # arg2: file name of file to be inserted into tar
+ # arg3: tar archive path (must exist first)
+ # arg4: temporary working dir
+ # arg5+: command strings (ex: "gpsbabel -i nmea -f - -o kml -F - ")
+ # Output: file written to disk
+ # Example: decrypt multiple large files in parallel
+ # appendArgTar "$(cat /tmp/largefile1.gpg)" "largefile1" $HOME/archive.tar /tmp "gpg --decrypt" &
+ # appendArgTar "$(cat /tmp/largefile2.gpg)" "largefile2" $HOME/archive.tar /tmp "gpg --decrypt" &
+ # appendArgTar "$(cat /tmp/largefile3.gpg)" "largefile3" $HOME/archive.tar /tmp "gpg --decrypt" &
+ # Depends: bash 5
+
+ # Save function name
+ local FN="${FUNCNAME[0]}";
+ #yell "DEBUG:STATUS:$FN:Finished appendArgTar()."
+
+ # Set file name
+ if ! [ -z "$2" ]; then FILENAME="$2"; else yell "ERROR:$FN:Not enough arguments."; exit 1; fi
+
+ # Check tar path is a file
+ if [ -f "$3" ]; then TAR_PATH="$3"; else yell "ERROR:$FN:Tar archive arg not a file."; exit 1; fi
+
+ # Check temp dir arg
+ if ! [ -z "$4" ]; then TMP_DIR="$4"; else yell "ERROR:$FN:No temporary working dir set."; exit 1; fi
+
+ # Set command strings
+ if ! [ -z "$5" ]; then CMD1="$5"; else CMD1="tee /dev/null "; fi # command string 1
+ if ! [ -z "$6" ]; then CMD2="$6"; else CMD2="tee /dev/null "; fi # command string 2
+ if ! [ -z "$7" ]; then CMD3="$7"; else CMD3="tee /dev/null "; fi # command string 3
+ if ! [ -z "$8" ]; then CMD4="$8"; else CMD4="tee /dev/null "; fi # command string 4
+
+ # # Debug
+ # yell "DEBUG:STATUS:$FN:CMD1:$CMD1"
+ # yell "DEBUG:STATUS:$FN:CMD2:$CMD2"
+ # yell "DEBUG:STATUS:$FN:CMD3:$CMD3"
+ # yell "DEBUG:STATUS:$FN:CMD4:$CMD4"
+ # yell "DEBUG:STATUS:$FN:FILENAME:$FILENAME"
+ # yell "DEBUG:STATUS:$FN:TAR_PATH:$TAR_PATH"
+ # yell "DEBUG:STATUS:$FN:TMP_DIR:$TMP_DIR"
+
+ # Write to temporary working dir
+ echo "$1" | $CMD1 | $CMD2 | $CMD3 | $CMD4 > "$TMP_DIR"/"$FILENAME";
+
+ # Append to tar
+ try tar --append --directory="$TMP_DIR" --file="$TAR_PATH" "$FILENAME";
+ #yell "DEBUG:STATUS:$FN:Finished appendArgTar()."
+} # Append Bash var to file appended to Tar archive
+magicWriteVersion() {
+ # Desc: Appends time-stamped VERSION to PATHOUT_TAR
+ # Usage: magicWriteVersion
+ # Version: 0.1.0
+ # Input: CONTENT_VERSION, FILEOUT_VERSION, PATHOUT_TAR, DIR_TMP
+ # Input: SCRIPT_VERSION, SCRIPT_URL, AGE_VERSION, AGE_URL, SCRIPT_HOSTNAME
+ # Output: appends tar PATHOUT_TAR
+ # Depends: dateTimeShort, appendArgTar
+ local CONTENT_VERSION pubKeyIndex
+
+ # Set VERSION file name
+ FILEOUT_VERSION="$(dateTimeShort)..VERSION";
+
+ # Gather VERSION data in CONTENT_VERSION
+ CONTENT_VERSION="SCRIPT_VERSION=$SCRIPT_VERSION";
+ #CONTENT_VERSION="$CONTENT_VERSION""\\n";
+ CONTENT_VERSION="$CONTENT_VERSION""\\n""SCRIPT_NAME=$SCRIPT_NAME";
+ CONTENT_VERSION="$CONTENT_VERSION""\\n""SCRIPT_URL=$SCRIPT_URL";
+ CONTENT_VERSION="$CONTENT_VERSION""\\n""AGE_VERSION=$AGE_VERSION";
+ CONTENT_VERSION="$CONTENT_VERSION""\\n""AGE_URL=$AGE_URL";
+ CONTENT_VERSION="$CONTENT_VERSION""\\n""DATE=$(date --iso-8601=seconds)";
+ CONTENT_VERSION="$CONTENT_VERSION""\\n""HOSTNAME=$SCRIPT_HOSTNAME";
+ ## Add list of recipient pubkeys
+ for pubkey in "${recPubKeysValid[@]}"; do
+ ((pubKeyIndex++))
+ CONTENT_VERSION="$CONTENT_VERSION""\\n""PUBKEY_$pubKeyIndex=$pubkey";
+ done
+ ## Process newline escapes
+ CONTENT_VERSION="$(echo -e "$CONTENT_VERSION")"
+
+ # Write CONTENT_VERSION as file FILEOUT_VERSION and write-append to PATHOUT_TAR
+ appendArgTar "$CONTENT_VERSION" "$FILEOUT_VERSION" "$PATHOUT_TAR" "$DIR_TMP";
+
+} # bkgpslog: write version data to PATHOUT_TAR via appendArgTar()
+magicWriteBuffer() {
+ # Desc: bkgpslog-specific meta function for writing data to DIR_TMP then appending each file to PATHOUT_TAR
+ # Inputs: PATHOUT_TAR FILEOUT_{NMEA,GPX,KML} CMD_CONV_{NMEA,GPX,KML} CMD_{COMPRESS,ENCRYPT} DIR_TMP
+ # Depends: yell, try, vbm, appendArgTar, tar
+ local FN="${FUNCNAME[0]}";
+ wait; # Wait to avoid collision with older magicWriteBuffer() instances (see https://www.tldp.org/LDP/abs/html/x9644.html )
+ vbm "DEBUG:STATUS:$FN:Started magicWriteBuffer().";
+
+ # Validate PATHOUT_TAR as tar.
+ checkMakeTar "$PATHOUT_TAR";
+ ## Add VERSION file if checkMakeTar had to create a tar (exited 1) or replace one (exited 2)
+ if [[ $? -eq 1 ]] || [[ $? -eq 2 ]]; then magicWriteVersion; fi
+
+ # Write bufferBash to PATHOUT_TAR
+ appendArgTar "$bufferBash" "$FILEOUT_NMEA" "$PATHOUT_TAR" "$DIR_TMP" "$CMD_CONV_NMEA" "$CMD_COMPRESS" "$CMD_ENCRYPT"; # Write NMEA data
+ appendArgTar "$bufferBash" "$FILEOUT_GPX" "$PATHOUT_TAR" "$DIR_TMP" "$CMD_CONV_GPX" "$CMD_COMPRESS" "$CMD_ENCRYPT"; # Write GPX file
+ appendArgTar "$bufferBash" "$FILEOUT_KML" "$PATHOUT_TAR" "$DIR_TMP" "$CMD_CONV_KML" "$CMD_COMPRESS" "$CMD_ENCRYPT"; # Write KML file
+ # Remove secured chunks from DIR_TMP
+ try rm "$PATHOUT_NMEA" "$PATHOUT_GPX" "$PATHOUT_KML";
+ # yell "DEBUG:STATUS:$FN:Finished magicWriteBuffer().";
+} # bkgpslog write function
+
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:$OPTION_TMPDIR";
+ exit 1;
+ fi
+ fi
+
+ ## Set DIR_TMP_PARENT to default or fallback otherwise
+ if [[ -d "$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
+ #### Form age recipient string
recipients="$recipients""-r $pubkey ";
- vbm "Added pubkey for forming age recipient string:""$pubkey";
+ vbm "STATUS:Added pubkey for forming age recipient string:""$pubkey";
vbm "DEBUG:recipients:""$recipients";
+ #### Add validated pubkey to recPubKeysValid array
+ recPubKeysValid+=("$pubkey") && vbm "DEBUG:recPubkeysValid:pubkey added:$pubkey";
else
yell "ERROR:Exit code ""$?"". Invalid recipient pubkey string. Exiting."; exit 1;
fi
done
vbm "DEBUG:Finished processing recPubKeys array";
- # Form age command string
+
+ ## Form age command string
CMD_ENCRYPT="age ""$recipients ";
CMD_ENCRYPT_SUFFIX=".age";
else
CMD_ENCRYPT_SUFFIX="";
vbm "DEBUG:Encryption not enabled."
fi
-
if [[ "$OPTION_COMPRESS" = "true" ]]; then # Check if compression option active
if checkapp gzip; then # Check if gzip available
CMD_COMPRESS="gzip ";
else
CMD_COMPRESS="tee /dev/null ";
CMD_COMPRESS_SUFFIX="";
- vbm "DEBUG:Compression not enabled."
+ vbm "DEBUG:Compression not enabled.";
fi
+
+ # Check that critical apps and dirs are available, displag missing ones.
+ if ! checkapp gpspipe tar && ! checkdir "$DIR_OUT" "/dev/shm"; then
+ yell "ERROR:Critical components missing.";
+ displayMissing; yell "Exiting."; exit 1; fi
+
+ # Set script lifespan
+ setScriptTTL "$SCRIPT_TTL"; # seconds until next new SCRIPT_TTL (ex: "day" or "hour")
+
+ # File name substring: encoded bufferTTL
+ bufferTTL_STR="$(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:$PATHOUT_TAR";
+ ## Check that PATHOUT_TAR is a tar. Rename old and create empty one otherwise.
+ checkMakeTar "$PATHOUT_TAR" && vbm "DEBUG:Confirmed or Created to be a tar:$PATHOUT_TAR";
+ ## Append VERSION file to PATHOUT_TAR
+ magicWriteVersion;
-
- if checkapp gpspipe && checkdir "$DIROUT"; 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 $?"; exit 1;
- # fi;
- # fi;
+ # Record gps data until script lifespan ends
+ declare debugCounter; debugCounter="0"; # set debug counter
+ while [[ "$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
+ FILEOUT_NMEA="$FILEOUT_BASENAME".nmea"$CMD_COMPRESS_SUFFIX""$CMD_ENCRYPT_SUFFIX" && vbm "STATUS:Set FILEOUT_NMEA to:$FILEOUT_NMEA";
+ FILEOUT_GPX="$FILEOUT_BASENAME".gpx"$CMD_COMPRESS_SUFFIX""$CMD_ENCRYPT_SUFFIX" && vbm "STATUS:Set FILEOUT_GPX to:$FILEOUT_GPX";
+ FILEOUT_KML="$FILEOUT_BASENAME".kml"$CMD_COMPRESS_SUFFIX""$CMD_ENCRYPT_SUFFIX" && vbm "STATUS:Set FILEOUT_KML to:$FILEOUT_KML";
+ PATHOUT_NMEA="$DIR_TMP"/"$FILEOUT_NMEA" && vbm "STATUS:Set PATHOUT_NMEA to:$PATHOUT_NMEA";
+ PATHOUT_GPX="$DIR_TMP"/"$FILEOUT_GPX" && vbm "STATUS:Set PATHOUT_GPX to:$PATHOUT_GPX";
+ PATHOUT_KML="$DIR_TMP"/"$FILEOUT_KML" && 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 $DIR_TMP";
+ magicWriteBuffer &
+ # Append each secured chunk in memory dir (DIR_TMP) to file on disk (PATHOUT_TAR in DIR_OUT)
+ vbm "STATUS:DIR_TMP :$DIR_TMP";
+ vbm "STATUS:PATHOUT_TAR :$PATHOUT_TAR";
+ vbm "STATUS:PATHOUT_NMEA:$PATHOUT_NMEA";
+ vbm "STATUS:PATHOUT_GPX:$PATHOUT_GPX";
+ vbm "STATUS:PATHOUT_KML:$PATHOUT_KML";
- # 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 $?"; exit 1;
- fi;
- fi;
-
- # Determine buffer lifespan
- bufferTTL="60";
-
- # Record gps data until script lifespan ends
- declare debugCounter; debugCounter="0"
- while [[ "$SECONDS" -lt "$scriptTTL" ]]; do
- ((debugCounter++))
- # Determine output file paths (time is start of buffer period)
- FILEOUT_BASENAME="$(dateTimeShort)""--P""$bufferTTL""S..""$SCRIPT_HOSTNAME""_location" ; # ISO-8601 YYYYmmddTHHMMSS+zzP[$bufferTTL]S
- FILEOUT_NMEA="$FILEOUT_BASENAME".nmea"$CMD_COMPRESS_SUFFIX""$CMD_ENCRYPT_SUFFIX" ;
- FILEOUT_GPX="$FILEOUT_BASENAME".gpx"$CMD_COMPRESS_SUFFIX""$CMD_ENCRYPT_SUFFIX" ;
- FILEOUT_KML="$FILEOUT_BASENAME".kml"$CMD_COMPRESS_SUFFIX""$CMD_ENCRYPT_SUFFIX" ;
- # Define GPS conversion commands
- CMD_CONV_NMEA="tee /dev/null "
- CMD_CONV_GPX="gpsbabel -i nmea -f - -o gpx -F - "
- CMD_CONV_KML="gpsbabel -i nmea -f - -o kml -F - "
- # Fill buffer
- buffer="$(timeout "$bufferTTL""s" gpspipe -r)"; # Record gpspipe nmea data to buffer for bufferTTL seconds
- # Execute processing and save command string
- echo "$buffer" | $CMD_CONV_NMEA | $CMD_COMPRESS | $CMD_ENCRYPT > "$DIROUT"/"$FILEOUT_NMEA" & # Save NMEA format
- echo "$buffer" | $CMD_CONV_GPX | $CMD_COMPRESS | $CMD_ENCRYPT > "$DIROUT"/"$FILEOUT_GPX" & # Save GPX format
- echo "$buffer" | $CMD_CONV_KML | $CMD_COMPRESS | $CMD_ENCRYPT > "$DIROUT"/"$FILEOUT_KML" & # Save KML format
- vbm "DEBUG:Completed buffer session $debugCounter ." 1>&2;
- # Reset buffer and filenames
- unset buffer FILEOUT_BASENAME FILEOUT_NMEA FILEOUT_GPX FILEOUT_KML;
- done
- fi
+ # 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==
main "$@" # Run main function.
exit 0;
#==END Perform work and exit==
-
-
-
- #gpspipe -r -d -l -o "$DIROUT1"/"$FILEOUT1" ;
projects / EVA-2020-02.git / blobdiff