doc(bkgpslog):Update plan doc

[EVA-2020-02.git] / exec / bkgpslog

diff --git a/exec/bkgpslog b/exec/bkgpslog
index c66a0e5b2823491e0c0a55879b7b006e6e00974b..19f95f270ede42591555bf3d9f6c79d824129735 100755 (executable)
--- a/exec/bkgpslog
+++ b/exec/bkgpslog
@@ -14,7 +14,7 @@ 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=$(hostname);     # Save hostname of system running this script.
 SCRIPT_TIME_START=$(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.
+SCRIPT_VERSION="bkgpslog 0.2.0"; # Define version of script.

 
 declare -Ag appRollCall # Associative array for storing app status
 declare -Ag fileRollCall # Associative array for storing file status
 
 declare -Ag appRollCall # Associative array for storing app status
 declare -Ag fileRollCall # Associative array for storing file status


@@ -262,41 +262,47 @@ setTimeZoneEV(){
 } # Exports TZ environment variable
 timeUntilNextDay(){
     # Desc: Report seconds until next day.
 } # 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="$(timeUntilNextDay)"; then yell "ERROR in if statement"; exit 1; fi
     # Output: stdout: integer seconds until next day
     # Output: exit code 0 if stdout > 0; 1 if stdout = 0; 2 if stdout < 0
     # Usage: timeUntilNextDay
     # Usage: if ! myTTL="$(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
     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
     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 [[ "$SECONDS_UNTIL_NEXT_DAY" -lt 0 ]]; then
        yell "WARNING:Reported time until next day exactly zero.";
     elif [[ "$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
     
        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 [[ "$returnState" = "true" ]]; then
        return 0;
     if [[ "$returnState" = "true" ]]; then
        return 0;

-    elif [[ "$returnState" = "WARNING_ZERO" ]]; then
+    elif [[ "$returnState" = "warning_zero" ]]; then

        return 1;
        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
        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="$(timeUntilNextHour)"; then yell "ERROR in if statement"; exit 1; fi
     # Output: stdout: integer seconds until next hour
     # Output: exit code 0 if stdout > 0; 1 if stdout = 0; 2 if stdout < 0
     # Usage: timeUntilNextHour
     # Usage: if ! myTTL="$(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 "$TIME_CURRENT next hour" --iso-8601=hours)"; # Produce `date`-parsable current time stamp with resolution of 1 second.
     local returnState TIME_CURRENT TIME_NEXT_HOUR SECONDS_UNTIL_NEXT_HOUR
     TIME_CURRENT="$(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.


@@ -304,21 +310,21 @@ timeUntilNextHour(){
     if [[ "$SECONDS_UNTIL_NEXT_HOUR" -gt 0 ]]; then
        returnState="true";
     elif [[ "$SECONDS_UNTIL_NEXT_HOUR" -eq 0 ]]; then
     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 [[ "$SECONDS_UNTIL_NEXT_HOUR" -lt 0 ]]; then
        yell "WARNING:Reported time until next hour exactly zero.";
     elif [[ "$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
     
        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 [[ "$returnState" = "true" ]]; then
        return 0;
     if [[ "$returnState" = "true" ]]; then
        return 0;

-    elif [[ "$returnState" = "WARNING_ZERO" ]]; then
+    elif [[ "$returnState" = "warning_zero" ]]; then

        return 1;
        return 1;

-    elif [[ "$returnState" = "WARNING_NEGATIVE" ]]; then
+    elif [[ "$returnState" = "warning_negative" ]]; then

        return 2;
     fi
 } # Report seconds until next hour
        return 2;
     fi
 } # Report seconds until next hour


@@ -345,12 +351,17 @@ timeDuration(){
     # 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])
     # 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])

+    # Version: 1.0.1

     # 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'
     # 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;
+    # Depends: date 8 (gnucoreutils), yell, 
+    local returnState ARG1 ARG2 remainder precision witherPrecision
+    local fullYears fullMonths fullDays fullHours fullMinutes fullSeconds
+    local displayYears displayMonths displayDays displayHours displayMinutes displaySeconds
+    local hasYears hasMonths hasDays hasHours hasMinutes hasSeconds
+    

     ARG1="$1";
     ARG2="$2";
     precision=2; # set default precision
     ARG1="$1";
     ARG2="$2";
     precision=2; # set default precision


@@ -363,13 +374,12 @@ timeDuration(){
 
     # Check that arg1 provided
     if [[ $# -ge 1 ]]; then
 
     # Check that arg1 provided
     if [[ $# -ge 1 ]]; then

-       # Check that arg1 is a positive integer
+       ## Check that arg1 is a positive integer

        if [[ "$ARG1" =~ ^[[:digit:]]+$ ]]; then
        if [[ "$ARG1" =~ ^[[:digit:]]+$ ]]; then

-           arg1Valid="true";
+           :

        else
            yell "ERROR:ARG1 not a digit.";
            returnState="ERROR_INPUT";
        else
            yell "ERROR:ARG1 not a digit.";
            returnState="ERROR_INPUT";

-           arg1Valid="false";

        fi
     else
        yell "ERROR:No argument provided. Exiting.";
        fi
     else
        yell "ERROR:No argument provided. Exiting.";


@@ -379,16 +389,14 @@ timeDuration(){
     # Consider whether arg2 was provided
     if  [[ $# -eq 2 ]]; then
        # Check that the second arg is a positive integer
     # 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";
+       if [[ "$ARG2" =~ ^[[:digit:]]+$ ]] && [[ "$ARG2" -gt 0 ]]; then

        precision="$ARG2";
        else
            yell "ERROR:ARG2 not a positive integer. (is $ARG2 ). Leaving early.";
            returnState="ERROR_INPUT";
        precision="$ARG2";
        else
            yell "ERROR:ARG2 not a positive integer. (is $ARG2 ). Leaving early.";
            returnState="ERROR_INPUT";

-           arg2Valid="false";

        fi;
     else
        fi;
     else

-       arg2Valid="false";
+       :

     fi;
     
     remainder="$ARG1" ; # seconds
     fi;
     
     remainder="$ARG1" ; # seconds


@@ -615,27 +623,41 @@ setScriptTTL() {
 checkMakeTar() {
     # Desc: Checks that a valid tar archive exists, creates one otherwise
     # Usage: checkMakeTar [ path ]
 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
     # Input: arg1: path of tar archive

-    # Output: exit code 0 (even if tar had to be created)
+    # Output: exit code 0 : tar readable
+    #         exit code 1 : tar missing; created
+    #         exit code 2 : tar not readable; moved; replaced

     # Depends: try, tar, date
     # Depends: try, tar, date

-    local PATH_TAR="$1"
+    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
 
     # Check if file is a valid tar archive
     if tar --list --file="$PATH_TAR" 1>/dev/null 2>&1; then
        ## T1: return success

-       return 0;
+       returnFlag0="tar valid";

     else
        ## F1: Check if file exists
        if [[ -f "$PATH_TAR" ]]; then
            ### T: Rename file
     else
        ## F1: Check if file exists
        if [[ -f "$PATH_TAR" ]]; then
            ### T: Rename file

-           try mv "$PATH_TAR" "$PATH_TAR""--broken--""$(date +%Y%m%dT%H%M%S)";
+           try mv "$PATH_TAR" "$PATH_TAR""--broken--""$(date +%Y%m%dT%H%M%S)" && \
+               returnFlag1="tar moved";

        else
            ### F: -
            :
        fi
        ## F2: Create tar archive, return 0
        else
            ### F: -
            :
        fi
        ## F2: Create tar archive, return 0

-       try tar --create --file="$PATH_TAR" --files-from=/dev/null;
+       try tar --create --file="$PATH_TAR" --files-from=/dev/null && \
+           returnFlag2="tar created";
+    fi
+    
+    # Determine function return code
+    if [[ "$returnFlag0" = "tar valid" ]]; then

        return 0;
        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(){
     fi
 } # checks if arg1 is tar; creates one otherwise
 appendArgTar(){


@@ -687,6 +709,18 @@ appendArgTar(){
     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
     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
+    # Input: CONTENT_VERSION, FILEOUT_VERSION, PATHOUT_TAR, DIR_TMP
+    # Depends: dateTimeShort, appendArgTar
+    
+    # Generate VERSION file in BashVar
+    FILEOUT_VERSION="$(dateTimeShort)..VERSION";
+    CONTENT_VERSION="$(dateTimeShort):$(basename "$0")"" Version:""$SCRIPT_VERSION";
+    # Create BashVar 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
 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


@@ -695,8 +729,10 @@ magicWriteBuffer() {
     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().";
 
     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().";
 

-    # Check that PATHOUT_TAR is a tar. Rename old and create empty one otherwise.
-    checkMakeTar "$PATHOUT_TAR"
+    # Validate PATHOUT_TAR as tar.
+    checkMakeTar "$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
 
     # Write bufferBash to PATHOUT_TAR
     appendArgTar "$bufferBash" "$FILEOUT_NMEA" "$PATHOUT_TAR" "$DIR_TMP" "$CMD_CONV_NMEA" "$CMD_COMPRESS" "$CMD_ENCRYPT"; # Write NMEA data


@@ -707,7 +743,6 @@ magicWriteBuffer() {
     yell "DEBUG:STATUS:$FN:Finished magicWriteBuffer().";
 } # bkgpslog write function
 
     yell "DEBUG:STATUS:$FN:Finished magicWriteBuffer().";
 } # bkgpslog write function
 

-

 main() {
     processArguments "$@" # Process arguments.
     
 main() {
     processArguments "$@" # Process arguments.
     


@@ -781,7 +816,7 @@ main() {
        displayMissing; yell "Exiting."; exit 1; fi
 
     # Set script lifespan
        displayMissing; yell "Exiting."; exit 1; fi
 
     # Set script lifespan

-    setScriptTTL "$SCRIPT_TTL";
+    setScriptTTL "$SCRIPT_TTL"; # seconds until next new SCRIPT_TTL (ex: "day" or "hour")

 
     # File name substring: encoded bufferTTL
     bufferTTL_STR="$(timeDuration $BUFFER_TTL)";
 
     # File name substring: encoded bufferTTL
     bufferTTL_STR="$(timeDuration $BUFFER_TTL)";


@@ -793,17 +828,10 @@ main() {
     ## 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";
     ## 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";

-    ## Generate VERSION file
-    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 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";
     ## 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
     ## Append VERSION file to PATHOUT_TAR

-    try tar --append --directory="$DIR_TMP" --file="$PATHOUT_TAR" "$FILEOUT_VERSION" && \
-       vbm "DEBUG:VERSION added to $PATHOUT_TAR";
+    magicWriteVersion;

     
     # Record gps data until script lifespan ends
     declare debugCounter; debugCounter="0"; # set debug counter
     
     # Record gps data until script lifespan ends
     declare debugCounter; debugCounter="0"; # set debug counter