+ # Construct and deliver separator-les date string
+ dateCurrentShort="$(date -d "$timeInput" +%Y%m%d)"; # Produce separator-less current date with resolution 1 day.
+ echo "$dateCurrentShort";
+} # Get YYYYmmdd
+dateTimeShort(){
+ # Desc: Timestamp without separators (YYYYmmddTHHMMSS+zzzz)
+ # Usage: dateTimeShort ([str date])
+ # Version 1.1.1
+ # Input: arg1: 'date'-parsable timestamp string (optional)
+ # Output: stdout: timestamp (ISO-8601, no separators)
+ # Depends: yell
+ local argTime timeCurrent timeInput timeCurrentShort
+
+ argTime="$1";
+ # Get Current Time
+ timeCurrent="$(date --iso-8601=seconds)" ; # Produce `date`-parsable current timestamp with resolution of 1 second.
+ # Decide to parse current or supplied date
+ ## Check if time argument empty
+ if [[ -z "$argTime" ]]; then
+ ## T: Time argument empty, use current time
+ timeInput="$timeCurrent";
+ else
+ ## F: Time argument exists, validate time
+ if date --date="$argTime" 1>/dev/null 2>&1; then
+ ### T: Time argument is valid; use it
+ timeInput="$argTime";
+ else
+ ### F: Time argument not valid; exit
+ yell "ERROR:Invalid time argument supplied. Exiting."; exit 1;
+ fi
+ fi
+ # Construct and deliver separator-les date string
+ timeCurrentShort="$(date -d "$timeInput" +%Y%m%dT%H%M%S%z)";
+ echo "$timeCurrentShort";
+} # Get YYYYmmddTHHMMSS±zzzz
+setTimeZoneEV(){
+ # Desc: Set time zone environment variable TZ
+ # Usage: setTimeZoneEV arg1
+ # Version 0.1.2
+ # 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 8.30, bash 5.0.3
+ # Tested on: Debian 10
+ local tzDir returnState argTimeZone
+
+ argTimeZone="$1"
+ 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 "$tzDir"/"$argTimeZone" ]]; then
+ yell "ERROR:Invalid time zone argument.";
+ return 2;
+ else
+ # Export ARG1 as TZ environment variable
+ TZ="$argTimeZone" && export TZ && returnState="true";
+ fi
+
+ # Determine function return code
+ if [ "$returnState" = "true" ]; then
+ return 0;
+ fi
+} # Exports TZ environment variable
+showVersion() {
+ yell "$scriptVersion"
+} # Display script version.
+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: 1.0.5
+ # 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, bash 5, yell,
+ local argSeconds argPrecision precision returnState remainder
+ local fullYears fullMonths fullDays fullHours fullMinutes fullSeconds
+ local hasYears hasMonths hasDays hasHours hasMinutes hasSeconds
+ local witherPrecision output
+ local displayYears displayMonths displayDays displayHours displayMinutes displaySeconds
+
+ 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 -ge 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 )
+timeUntilNextDay(){
+ # Desc: Report seconds until next day.
+ # Version: 1.0.2
+ # 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="$(timeUntilNextDay)"; then yell "ERROR in if statement"; exit 1; fi
+ # Depends: date 8, echo 8, yell, try
+
+ local returnState timeCurrent timeNextDay secondsUntilNextDay returnState
+ timeCurrent="$(date --iso-8601=seconds)" ; # Produce `date`-parsable current timestamp with resolution of 1 second.
+ timeNextDay="$(date -d "$timeCurrent next day" --iso-8601=date)"; # Produce timestamp of beginning of tomorrow with resolution of 1 second.
+ secondsUntilNextDay="$(( $(date +%s -d "$timeNextDay") - $(date +%s -d "$timeCurrent") ))" ; # Calculate seconds until closest future midnight (res. 1 second).
+ if [[ "$secondsUntilNextDay" -gt 0 ]]; then
+ returnState="true";
+ elif [[ "$secondsUntilNextDay" -eq 0 ]]; then
+ returnState="warning_zero";
+ yell "WARNING:Reported time until next day exactly zero.";
+ elif [[ "$secondsUntilNextDay" -lt 0 ]]; then
+ returnState="warning_negative";
+ yell "WARNING:Reported time until next day is negative.";
+ fi
+
+ try echo "$secondsUntilNextDay"; # Report
+
+ # Determine function return code
+ if [[ "$returnState" = "true" ]]; then
+ return 0;
+ elif [[ "$returnState" = "warning_zero" ]]; then
+ return 1;
+ elif [[ "$returnState" = "warning_negative" ]]; then
+ return 2;
+ fi
+} # Report seconds until next day
+timeUntilNextHour(){
+ # Desc: Report seconds until next hour
+ # Version 1.0.1
+ # Output: stdout: integer seconds until next hour
+ # Output: exit code 0 if stdout > 0; 1 if stdout = 0; 2 if stdout < 0
+ # Usage: timeUntilNextHour
+ # Usage: if ! myTTL="$(timeUntilNextHour)"; then yell "ERROR in if statement"; exit 1; fi
+
+ local returnState timeCurrent timeNextHour secondsUntilNextHour
+ timeCurrent="$(date --iso-8601=seconds)"; # Produce `date`-parsable current timestamp with resolution of 1 second.
+ timeNextHour="$(date -d "$timeCurrent next hour" --iso-8601=hours)"; # Produce `date`-parsable current time stamp with resolution of 1 second.
+ secondsUntilNextHour="$(( $(date +%s -d "$timeNextHour") - $(date +%s -d "$timeCurrent") ))"; # Calculate seconds until next hour (res. 1 second).
+ if [[ "$secondsUntilNextHour" -gt 0 ]]; then
+ returnState="true";
+ elif [[ "$secondsUntilNextHour" -eq 0 ]]; then
+ returnState="warning_zero";
+ yell "WARNING:Reported time until next hour exactly zero.";
+ elif [[ "$secondsUntilNextHour" -lt 0 ]]; then
+ returnState="warning_negative";
+ yell "WARNING:Reported time until next hour is negative.";
+ fi;
+
+ try echo "$secondsUntilNextHour"; # Report
+
+ # Determine function return code
+ if [[ "$returnState" = "true" ]]; then
+ return 0;
+ elif [[ "$returnState" = "warning_zero" ]]; then
+ return 1;
+ elif [[ "$returnState" = "warning_negative" ]]; then
+ return 2;
+ fi;
+} # Report seconds until next hour
+validateInput() {
+ # Desc: Validates Input
+ # Usage: validateInput [str input] [str input type]
+ # Version: 0.3.1
+ # Input: arg1: string to validate
+ # arg2: string specifying input type (ex:"ssh_pubkey")
+ # Output: return code 0: if input string matched specified string type
+ # Depends: bash 5, yell()
+
+ local fn argInput argType
+
+ # Save function name
+ fn="${FUNCNAME[0]}";
+
+ # Process arguments
+ argInput="$1";
+ argType="$2";
+ if [[ $# -gt 2 ]]; then yell "ERROR:$0:$fn:Too many arguments."; exit 1; fi;
+
+ # Check for blank
+ if [[ -z "$argInput" ]]; then return 1; fi
+
+ # Define input types
+ ## ssh_pubkey
+ ### Check for alnum/dash base64 (ex: "ssh-rsa AAAAB3NzaC1yc2EAAA")
+ if [[ "$argType" = "ssh_pubkey" ]]; then
+ if [[ "$argInput" =~ ^[[:alnum:]-]*[\ ]*[[:alnum:]+/=]*$ ]]; then
+ return 0; fi; fi;
+
+ ## age_pubkey
+ ### Check for age1[:bech32:]
+ if [[ "$argType" = "age_pubkey" ]]; then
+ if [[ "$argInput" =~ ^age1[qpzry9x8gf2tvdw0s3jn54khce6mua7l]*$ ]]; then
+ return 0; fi; fi
+
+ ## integer
+ if [[ "$argType" = "integer" ]]; then
+ if [[ "$argInput" =~ ^[[:digit:]]*$ ]]; then
+ return 0; fi; fi;
+
+ ## time element (year, month, week, day, hour, minute, second)
+ if [[ "$argType" = "time_element" ]]; then
+ if [[ "$argInput" = "year" ]] || \
+ [[ "$argInput" = "month" ]] || \
+ [[ "$argInput" = "week" ]] || \
+ [[ "$argInput" = "day" ]] || \
+ [[ "$argInput" = "hour" ]] || \
+ [[ "$argInput" = "minute" ]] || \
+ [[ "$argInput" = "second" ]]; then
+ return 0; fi; fi;
+
+ # Return error if no condition matched.
+ return 1;
+} # Validates strings
+
+magicInitWorkingDir() {
+ # Desc: Determine temporary working directory from defaults or user input
+ # Usage: magicInitWorkingDir
+ # Input: vars: optionTmpDir, argTempDirPriority, dirTmpDefault
+ # Input: vars: scriptTimeStart
+ # Output: vars: dir_tmp
+ # Depends: bash 5.0.3, processArguments(), vbm(), yell()
+ # Parse '-t' option (user-specified temporary working dir)
+ ## Set dir_tmp_parent to user-specified value if specified
+ local fn dir_tmp_parent
+
+ # Save function name
+ fn="${FUNCNAME[0]}";
+
+ vbm "STATUS:$fn:Starting magicInitWorkingDir() function.";
+ if [[ "$optionTmpDir" = "true" ]]; then
+ if [[ -d "$argTempDirPriority" ]]; then
+ dir_tmp_parent="$argTempDirPriority";
+ else
+ yell "WARNING:$fn:Specified temporary working directory not valid:$argTempDirPriority";
+ exit 1; # Exit since user requires a specific temp dir and it is not available.
+ fi;
+ else
+ ## Set dir_tmp_parent to default or fallback otherwise
+ if [[ -d "$dirTmpDefault" ]]; then
+ dir_tmp_parent="$dirTmpDefault";
+ elif [[ -d /tmp ]]; then
+ yell "WARNING:$fn:$dirTmpDefault not available. Falling back to /tmp .";
+ dir_tmp_parent="/tmp";
+ else
+ yell "ERROR:$fn:No valid working directory available. Exiting.";
+ exit 1;
+ fi;
+ fi;
+ ## Set dir_tmp using dir_tmp_parent and nonce (scriptTimeStart)
+ dir_tmp="$dir_tmp_parent"/"$scriptTimeStart""..bkgpslog" && vbm "DEBUG :$fn:Set dir_tmp to:$dir_tmp"; # Note: removed at end of main().
+ vbm "STATUS:$fn:Finished magicInitWorkingDir() function.";
+} # Sets working dir
+magicInitCheckTar() {
+ # Desc: Initializes or checks output tar
+ # input: vars: dirOut, bufferTTL, cmd_encrypt_suffix, cmd_compress_suffix
+ # input: vars: scriptHostname
+ # output: vars: pathout_tar
+ # depends: Bash 5.0.3, vbm(), dateShort(), checkMakeTar(), magicWriteVersion()
+ local fn checkMakeTarES
+
+ # Save function name
+ fn="${FUNCNAME[0]}";
+
+ vbm "STATUS:$fn:Starting magicInitCheckTar() function.";
+ # Form pathout_tar
+ pathout_tar="$dirOut"/"$(dateShort "$(date --date="$bufferTTL seconds ago" --iso-8601=seconds)")".."$scriptHostname""$label""$cmd_compress_suffix""$cmd_encrypt_suffix".tar && \
+ vbm "STATUS:$fn:Set pathout_tar to:$pathout_tar";
+ # Validate pathout_tar as tar.
+ checkMakeTar "$pathout_tar"; checkMakeTarES="$?";
+ ## Add VERSION file if checkMakeTar had to create a tar (exited 1) or replace one (exited 2)
+ vbm "STATUS:$fn:exit status before magicWriteVersion:$checkMakeTarES"
+ if [[ "$checkMakeTarES" -eq 1 ]] || [[ "$checkMakeTarES" -eq 2 ]]; then magicWriteVersion; fi
+ vbm "STATUS:$fn:Finished magicInitCheckTar() function.";
+} # Initialize tar, set pathout_tar
+magicParseCompressionArg() {
+ # Desc: Parses compression arguments specified by '-c' option
+ # Input: vars: optionCompress
+ # Output: cmd_compress, cmd_compress_suffix
+ # Depends: processArguments(), vbm(), checkapp(), gzip 1.9
+ local fn
+
+ # Save function name
+ fn="${FUNCNAME[0]}";
+
+ vbm "STATUS:$fn:Starting magicParseCompressionArg() function.";
+ if [[ "$optionCompress" = "true" ]]; then # Check if compression option active
+ if checkapp gzip; then # Check if gzip available
+ cmd_compress="gzip " && vbm "STATUS:$fn:cmd_compress:$cmd_compress";
+ cmd_compress_suffix=".gz" && vbm "STATUS:$fn:cmd_compress_suffix:$cmd_compress_suffix";
+ else
+ yell "ERROR:$fn:Compression enabled but \"gzip\" not found. Exiting."; exit 1;
+ fi;
+ else
+ cmd_compress="tee /dev/null " && vbm "STATUS:$fn:cmd_compress:$cmd_compress";
+ cmd_compress_suffix="" && vbm "STATUS:$fn:cmd_compress_suffix:$cmd_compress_suffix";
+ vbm "DEBUG :$fn:Compression not enabled.";
+ fi;
+ vbm "STATUS:$fn:Finished magicParseCompressionArg() function.";
+} # Form compression cmd string and filename suffix
+magicParseCustomTTL() {
+ # Desc: Set user-specified TTLs for buffer and script
+ # Usage: magicParseCustomTTL
+ # Input: vars: argCustomBufferTTL (integer), argCustomScriptTTL_TE (string)
+ # Input: vars: optionCustomBufferTTL, optionCustomScriptTTL_TE
+ # Input: vars: bufferTTL (integer), scriptTTL_TE (string)
+ # Output: bufferTTL (integer), scriptTTL_TE (string)
+ # Depends: Bash 5.0.3, yell(), vbm(), validateInput(), showUsage()
+ local fn
+
+ # Save function name
+ fn="${FUNCNAME[0]}";
+
+ vbm "STATUS:$fn:Starting magicParseCustomTTL() function.";
+ # React to '-b, --buffer-ttl' option
+ if [[ "$optionCustomBufferTTL" = "true" ]]; then
projects / EVA-2020-02.git / blobdiff