| | 1 | #!/bin/bash |
| | 2 | |
| | 3 | # Desc: Records gps data until midnight |
| | 4 | # Author: Steven Baltakatei Sandoval; License: GPLv3+ |
| | 5 | # Usage: bkgpslog --output [output dir] |
| | 6 | |
| | 7 | #==BEGIN Define script parameters== |
| | 8 | PATH="/opt/bktei:$PATH" # Add default baltakatei script install directory to PATH (necessary for other bk scripts) |
| | 9 | SCRIPT_HOSTNAME=$(hostname) # Save hostname of system running this script. |
| | 10 | SCRIPT_VERSION="bkgpslog 0.0.1" # Define version of script. |
| | 11 | SCRIPT_TIME_SHORT="$(date +%Y%m%dT%H%M%S%z)" # Save current date & time in ISO-8601 format. |
| | 12 | SCRIPT_DATE_SHORT="$(date +%Y%m%d)" # Save current date in ISO-8601 format. |
| | 13 | |
| | 14 | declare -Ag appRollCall # Associative array for storing app status |
| | 15 | declare -Ag fileRollCall # Associative array for storing file status |
| | 16 | declare -Ag dirRollCall # Associative array for storing dir status |
| | 17 | |
| | 18 | #===BEGIN Declare local script functions=== |
| | 19 | checkapp() { |
| | 20 | # Desc: If arg is a command, save result in assoc array 'appRollCall' |
| | 21 | # Usage: checkapp arg1 arg2 arg3 ... |
| | 22 | # Input: global assoc. array 'appRollCall' |
| | 23 | # Output: adds/updates key(value) to global assoc array 'appRollCall' |
| | 24 | local returnState |
| | 25 | #echo "DEBUG:$(date +%S.%N)..Starting checkapp function." |
| | 26 | #echo "DEBUG:args: $@" |
| | 27 | #echo "DEBUG:returnState:$returnState" |
| | 28 | |
| | 29 | #===Process Args=== |
| | 30 | for arg in "$@"; do |
| | 31 | #echo "DEBUG:processing arg:$arg" |
| | 32 | if command -v "$arg" 1>/dev/null 2>&1; then # Check if arg is a valid command |
| | 33 | appRollCall[$arg]="true"; |
| | 34 | #echo "DEBUG:appRollCall[$arg]:"${appRollCall[$arg]} |
| | 35 | if ! [ "$returnState" = "false" ]; then returnState="true"; fi |
| | 36 | else |
| | 37 | appRollCall[$arg]="false"; returnState="false"; |
| | 38 | fi |
| | 39 | done |
| | 40 | |
| | 41 | #for key in "${!appRollCall[@]}"; do echo "DEBUG:$key => ${appRollCall[$key]}"; done |
| | 42 | #echo "DEBUG:evaluating returnstate. returnState:"$returnState |
| | 43 | |
| | 44 | #===Determine function return code=== |
| | 45 | if [ "$returnState" = "true" ]; then |
| | 46 | #echo "DEBUG:checkapp returns true for $arg"; |
| | 47 | return 0; |
| | 48 | else |
| | 49 | #echo "DEBUG:checkapp returns false for $arg"; |
| | 50 | return 1; |
| | 51 | fi |
| | 52 | } # Check that app exists |
| | 53 | checkfile() { |
| | 54 | # Desc: If arg is a file path, save result in assoc array 'fileRollCall' |
| | 55 | # Usage: checkfile arg1 arg2 arg3 ... |
| | 56 | # Input: global assoc. array 'fileRollCall' |
| | 57 | # Output: adds/updates key(value) to global assoc array 'fileRollCall'; |
| | 58 | # Output: returns 0 if app found, 1 otherwise |
| | 59 | local returnState |
| | 60 | |
| | 61 | #===Process Args=== |
| | 62 | for arg in "$@"; do |
| | 63 | #echo "DEBUG:processing arg:$arg" |
| | 64 | if [ -f "$arg" ]; then |
| | 65 | fileRollCall["$arg"]="true"; |
| | 66 | #echo "DEBUG:fileRollCall[\"$arg\"]:"${fileRollCall["$arg"]} |
| | 67 | if ! [ "$returnState" = "false" ]; then returnState="true"; fi |
| | 68 | else |
| | 69 | fileRollCall["$arg"]="false"; returnState="false"; |
| | 70 | fi |
| | 71 | done |
| | 72 | |
| | 73 | #for key in "${!fileRollCall[@]}"; do echo "DEBUG:fileRollCall key [$key] is:${fileRollCall[$key]}"; done |
| | 74 | #echo "DEBUG:evaluating returnstate. returnState:"$returnState |
| | 75 | |
| | 76 | #===Determine function return code=== |
| | 77 | if [ "$returnState" = "true" ]; then |
| | 78 | #echo "DEBUG:checkapp returns true for $arg"; |
| | 79 | return 0; |
| | 80 | else |
| | 81 | #echo "DEBUG:checkapp returns false for $arg"; |
| | 82 | return 1; |
| | 83 | fi |
| | 84 | } # Check that file exists |
| | 85 | checkdir() { |
| | 86 | # Desc: If arg is a dir path, save result in assoc array 'dirRollCall' |
| | 87 | # Usage: checkdir arg1 arg2 arg3 ... |
| | 88 | # Input: global assoc. array 'dirRollCall' |
| | 89 | # Output: adds/updates key(value) to global assoc array 'dirRollCall'; |
| | 90 | # Output: returns 0 if app found, 1 otherwise |
| | 91 | local returnState |
| | 92 | |
| | 93 | #===Process Args=== |
| | 94 | for arg in "$@"; do |
| | 95 | #echo "DEBUG:processing arg:$arg" |
| | 96 | if [ -d "$arg" ]; then |
| | 97 | dirRollCall["$arg"]="true"; |
| | 98 | #echo "DEBUG:dirRollCall[\"$arg\"]:"${dirRollCall["$arg"]} |
| | 99 | if ! [ "$returnState" = "false" ]; then returnState="true"; fi |
| | 100 | elif [ "$arg" = "" ]; then |
| | 101 | dirRollCall["$arg"]="false"; returnState="false"; |
| | 102 | else |
| | 103 | returnState="false"; |
| | 104 | fi |
| | 105 | done |
| | 106 | |
| | 107 | #for key in "${!dirRollCall[@]}"; do echo "DEBUG:dirRollCall key [$key] is:${dirRollCall[$key]}"; done |
| | 108 | #echo "DEBUG:evaluating returnstate. returnState:"$returnState |
| | 109 | |
| | 110 | #===Determine function return code=== |
| | 111 | if [ "$returnState" = "true" ]; then |
| | 112 | #echo "DEBUG:checkapp returns true for $arg"; |
| | 113 | return 0; |
| | 114 | else |
| | 115 | #echo "DEBUG:checkapp returns false for $arg"; |
| | 116 | return 1; |
| | 117 | fi |
| | 118 | } # Check that dir exists |
| | 119 | |
| | 120 | # Yell, Die, Try Three-Fingered Claw technique |
| | 121 | # Ref/Attrib: https://stackoverflow.com/a/25515370 |
| | 122 | yell() { echo "$0: $*" >&2; } |
| | 123 | die() { yell "$*"; exit 111; } |
| | 124 | try() { "$@" || die "cannot $*"; } |
| | 125 | |
| | 126 | echoerr() { |
| | 127 | echo "$@" 1>&2; # Define stderr echo function. |
| | 128 | } # Define stderr message function. |
| | 129 | showUsage() { |
| | 130 | echoerr "USAGE:" |
| | 131 | echoerr " bkgpslog [ options ]" |
| | 132 | echoerr |
| | 133 | echoerr "OPTIONS:" |
| | 134 | echoerr " -h, --help" |
| | 135 | echoerr " Display help information." |
| | 136 | echoerr |
| | 137 | echoerr " --version" |
| | 138 | echoerr " Display script version." |
| | 139 | echoerr |
| | 140 | echoerr " -v, --verbose" |
| | 141 | echoerr " Display debugging info." |
| | 142 | echoerr |
| | 143 | echoerr " -o, --output [ directory ]" |
| | 144 | echoerr " Specify output directory to save logs." |
| | 145 | } # Display information on how to use this script. |
| | 146 | showVersion() { |
| | 147 | echoerr "$SCRIPT_VERSION" |
| | 148 | } # Display script version. |
| | 149 | vbm() { |
| | 150 | # Usage: vbm "DEBUG:verbose message here" |
| | 151 | # Description: Prints verbose message ("vbm") to stderr if OPTION_VERBOSE is set to "true". |
| | 152 | # Input: |
| | 153 | # - OPTION_VERBOSE variable set by processArguments function. (ex: "true", "false") |
| | 154 | # - "$@" positional arguments fed to this function. |
| | 155 | # Output: stderr |
| | 156 | # Script function dependencies: echoerr |
| | 157 | # External function dependencies: echo |
| | 158 | # Last modified: 2020-04-11T23:57Z |
| | 159 | # Last modified by: Steven Baltakatei Sandoval |
| | 160 | # License: GPLv3+ |
| | 161 | # Ref./Attrib: |
| | 162 | |
| | 163 | if [ "$OPTION_VERBOSE" = "true" ]; then |
| | 164 | FUNCTION_TIME=$(date --iso-8601=ns); # Save current time in nano seconds. |
| | 165 | echoerr "[$FUNCTION_TIME] ""$*"; # Display argument text. |
| | 166 | fi |
| | 167 | |
| | 168 | # End function |
| | 169 | return 0; # Function finished. |
| | 170 | } # Verbose message display function. |
| | 171 | processArguments() { |
| | 172 | while [ ! $# -eq 0 ]; do # While number of arguments ($#) is not (!) equal to (-eq) zero (0). |
| | 173 | #echoerr "DEBUG:Starting processArguments while loop." |
| | 174 | #echoerr "DEBUG:Provided arguments are:""$*" |
| | 175 | case "$1" in |
| | 176 | -h | --help) showUsage; exit 1;; # Display usage. |
| | 177 | --version) showVersion; exit 1;; # Show version |
| | 178 | -v | --verbose) OPTION_VERBOSE="true"; vbm "DEBUG:Verbose mode enabled.";; # Enable verbose mode. |
| | 179 | -o | --output) if [ -d "$2" ]; then DIROUT="$2"; vbm "DEBUG:DIROUT:$DIROUT"; shift; fi ;; # Define output directory. |
| | 180 | *) echoerr "ERROR: Unrecognized argument."; exit 1;; # Handle unrecognized options. |
| | 181 | esac |
| | 182 | shift |
| | 183 | done |
| | 184 | } # Argument Processing |
| | 185 | timeUntilNextDay(){ |
| | 186 | # Desc: Report seconds until next day. |
| | 187 | # Output: stdout: integer seconds until next day |
| | 188 | # Output: exit code 0 if stdout > 0; 1 if stdout = 0; 2 if stdout < 0 |
| | 189 | # Usage: timeUntilNextDay |
| | 190 | # Usage: if ! myTTL="$(timeUntilNextDay)"; then yell "ERROR in if statement"; exit 1; fi |
| | 191 | local returnState TIME_CURRENT TIME_NEXT_DAY SECONDS_UNTIL_NEXT_DAY |
| | 192 | TIME_CURRENT="$(date --iso-8601=seconds)" ; # Produce `date`-parsable current timestamp with resolution of 1 second. |
| | 193 | TIME_NEXT_DAY="$(date -d "$TIME_CURRENT next day" --iso-8601=date)"; # Produce timestamp of beginning of tomorrow with resolution of 1 second. |
| | 194 | SECONDS_UNTIL_NEXT_DAY="$(( $(date +%s -d "$TIME_NEXT_DAY") - $(date +%s -d "$TIME_CURRENT") ))" ; # Calculate seconds until closest future midnight (res. 1 second). |
| | 195 | if [[ "$SECONDS_UNTIL_NEXT_DAY" -gt 0 ]]; then |
| | 196 | returnState="true"; |
| | 197 | elif [[ "$SECONDS_UNTIL_NEXT_DAY" -eq 0 ]]; then |
| | 198 | returnState="WARNING_ZERO"; |
| | 199 | yell "WARNING:Reported time until next day exactly zero."; |
| | 200 | elif [[ "$SECONDS_UNTIL_NEXT_DAY" -lt 0 ]]; then |
| | 201 | returnState="WARNING_NEGATIVE"; |
| | 202 | yell "WARNING:Reported time until next day is negative."; |
| | 203 | fi |
| | 204 | |
| | 205 | try echo "$SECONDS_UNTIL_NEXT_DAY"; # Report |
| | 206 | |
| | 207 | #===Determine function return code=== |
| | 208 | if [[ "$returnState" = "true" ]]; then |
| | 209 | return 0; |
| | 210 | elif [[ "$returnState" = "WARNING_ZERO" ]]; then |
| | 211 | return 1; |
| | 212 | elif [[ "$returnState" = "WARNING_NEGATIVE" ]]; then |
| | 213 | return 2; |
| | 214 | fi |
| | 215 | } # Report seconds until next day |
| | 216 | timeUntilNextHour(){ |
| | 217 | # Desc: Report seconds until next hour |
| | 218 | # Output: stdout: integer seconds until next hour |
| | 219 | # Output: exit code 0 if stdout > 0; 1 if stdout = 0; 2 if stdout < 0 |
| | 220 | # Usage: timeUntilNextHour |
| | 221 | # Usage: if ! myTTL="$(timeUntilNextHour)"; then yell "ERROR in if statement"; exit 1; fi |
| | 222 | local returnState TIME_CURRENT TIME_NEXT_HOUR SECONDS_UNTIL_NEXT_HOUR |
| | 223 | TIME_CURRENT="$(date --iso-8601=seconds)"; # Produce `date`-parsable current timestamp with resolution of 1 second. |
| | 224 | TIME_NEXT_HOUR="$(date -d "$TIME_CURRENT next hour" --iso-8601=hours)"; # Produce `date`-parsable current time stamp with resolution of 1 second. |
| | 225 | SECONDS_UNTIL_NEXT_HOUR="$(( $(date +%s -d "$TIME_NEXT_HOUR") - $(date +%s -d "$TIME_CURRENT") ))"; # Calculate seconds until next hour (res. 1 second). |
| | 226 | if [[ "$SECONDS_UNTIL_NEXT_HOUR" -gt 0 ]]; then |
| | 227 | returnState="true"; |
| | 228 | elif [[ "$SECONDS_UNTIL_NEXT_HOUR" -eq 0 ]]; then |
| | 229 | returnState="WARNING_ZERO"; |
| | 230 | yell "WARNING:Reported time until next hour exactly zero."; |
| | 231 | elif [[ "$SECONDS_UNTIL_NEXT_HOUR" -lt 0 ]]; then |
| | 232 | returnState="WARNING_NEGATIVE"; |
| | 233 | yell "WARNING:Reported time until next hour is negative."; |
| | 234 | fi |
| | 235 | |
| | 236 | try echo "$SECONDS_UNTIL_NEXT_HOUR"; # Report |
| | 237 | |
| | 238 | #===Determine function return code=== |
| | 239 | if [[ "$returnState" = "true" ]]; then |
| | 240 | return 0; |
| | 241 | elif [[ "$returnState" = "WARNING_ZERO" ]]; then |
| | 242 | return 1; |
| | 243 | elif [[ "$returnState" = "WARNING_NEGATIVE" ]]; then |
| | 244 | return 2; |
| | 245 | fi |
| | 246 | } # Report seconds until next hour |
| | 247 | dateTimeShort(){ |
| | 248 | # Desc: Timestamp without separators (YYYYmmddTHHMMSS+zzzz) |
| | 249 | # Usage: dateTimeShort |
| | 250 | # Output: stdout: timestamp (ISO-8601, no separators) |
| | 251 | local TIME_CURRENT TIME_CURRENT_SHORT |
| | 252 | TIME_CURRENT="$(date --iso-8601=seconds)" ; # Produce `date`-parsable current timestamp with resolution of 1 second. |
| | 253 | TIME_CURRENT_SHORT="$(date -d "$TIME_CURRENT" +%Y%m%dT%H%M%S%z)"; # Produce separator-less current timestamp with resolution 1 second. |
| | 254 | echo "$TIME_CURRENT_SHORT"; |
| | 255 | } # Get date&time without separators |
| | 256 | main() { |
| | 257 | processArguments "$@" # Process arguments. |
| | 258 | if checkapp gpspipe && checkdir "$DIROUT"; then |
| | 259 | |
| | 260 | # # Set script lifespan to end at start of next day |
| | 261 | # if ! scriptTTL="$(timeUntilNextDay)"; then |
| | 262 | # if [[ "$scriptTTL" -eq 0 ]]; then |
| | 263 | # ((scriptTTL++)); # Add 1 because 0 would cause 'timeout' to never timeout. |
| | 264 | # else |
| | 265 | # yell "ERROR: timeUntilNextDay exit code $?"; exit 1; |
| | 266 | # fi; |
| | 267 | # fi; |
| | 268 | |
| | 269 | # Set script lifespan to end at start of next hour |
| | 270 | if ! scriptTTL="$(timeUntilNextHour)"; then |
| | 271 | if [[ "$scriptTTL" -eq 0 ]]; then |
| | 272 | ((scriptTTL++)); # Add 1 because 0 would cause 'timeout' to never timeout. |
| | 273 | else |
| | 274 | yell "ERROR: timeUntilNextHour exit code $?"; exit 1; |
| | 275 | fi; |
| | 276 | fi; |
| | 277 | |
| | 278 | # Determine buffer lifespan |
| | 279 | bufferTTL="60"; |
| | 280 | |
| | 281 | # Record gps data until script lifespan ends |
| | 282 | declare debugCounter; debugCounter="0" |
| | 283 | while [[ "$SECONDS" -lt "$scriptTTL" ]]; do |
| | 284 | ((debugCounter++)) |
| | 285 | # Determine output file paths (time is start of buffer period) |
| | 286 | FILEOUT_BASENAME="$(dateTimeShort)""--P""$bufferTTL""S..""$SCRIPT_HOSTNAME""_location" ; # ISO-8601 YYYYmmddTHHMMSS+zzP[$bufferTTL]S |
| | 287 | FILEOUT_NMEA="$FILEOUT_BASENAME".nmea ; |
| | 288 | FILEOUT_GPX="$FILEOUT_BASENAME".gpx ; |
| | 289 | FILEOUT_KML="$FILEOUT_BASENAME".kml ; |
| | 290 | # Fill buffer |
| | 291 | buffer="$(timeout "$bufferTTL""s" gpspipe -r)"; # Record gpspipe nmea data to buffer for bufferTTL seconds |
| | 292 | # Process and save buffers |
| | 293 | echo "$buffer" > "$DIROUT"/"$FILEOUT_NMEA" & # Save NMEA format |
| | 294 | echo "$buffer" | gpsbabel -i nmea -f - -o gpx -F - > "$DIROUT"/"$FILEOUT_GPX" & # Save GPX format |
| | 295 | echo "$buffer" | gpsbabel -i nmea -f - -o kml -F - > "$DIROUT"/"$FILEOUT_KML" & # Save KML format |
| | 296 | vbm "DEBUG:Completed buffer session $debugCounter ." 1>&2; |
| | 297 | # Reset buffer and filenames |
| | 298 | unset buffer FILEOUT_BASENAME FILEOUT_NMEA FILEOUT_GPX FILEOUT_KML; |
| | 299 | done |
| | 300 | fi |
| | 301 | } # Main function. |
| | 302 | #===END Declare local script functions=== |
| | 303 | #==END Define script parameters== |
| | 304 | |
| | 305 | |
| | 306 | #==BEGIN Perform work and exit== |
| | 307 | main "$@" # Run main function. |
| | 308 | exit 0; |
| | 309 | #==END Perform work and exit== |
| | 310 | |
| | 311 | |
| | 312 | |
| | 313 | #gpspipe -r -d -l -o "$DIROUT1"/"$FILEOUT1" ; |
projects / EVA-2020-02.git / blame_incremental