style(unitproc):dateShort: Change VAR_NAMES to varNames

[BK-2020-03.git] / unitproc / bktemp-timeDuration

diff --git a/unitproc/bktemp-timeDuration b/unitproc/bktemp-timeDuration
index f132d08bb46d40f5f75c517e43b84f2e919d12f2..21c9d6979e0dde686ac2a752e08dcb51626219a6 100644 (file)
--- a/unitproc/bktemp-timeDuration
+++ b/unitproc/bktemp-timeDuration
@@ -6,57 +6,61 @@ yell() { echo "$0: $*" >&2; } # Yell, Die, Try Three-Fingered Claw technique; #
 die() { yell "$*"; exit 111; }
 try() { "$@" || die "cannot $*"; }
 timeDuration(){
-    # Desc: Output approximate time duration string before given time (default:current date)
+    # 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 [arg1] ([arg2])
+    # 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)
-    local returnState fullHours fullMinutes fullSeconds;
-    ARG1="$1";
-    ARG2="$2";
+    # 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
-    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
+       returnState="error_input"; fi
 
-    # Check that arg1 provided
+    # Check that argSeconds provided
     if [[ $# -ge 1 ]]; then
-       # Check that arg1 is a positive integer
-       if [[ "$ARG1" =~ ^[[:digit:]]+$ ]]; then
-           arg1Valid="true";
+       ## Check that argSeconds is a positive integer
+       if [[ "$argSeconds" =~ ^[[:digit:]]+$ ]]; then
+           :
        else
-           yell "ERROR:ARG1 not a digit.";
-           returnState="ERROR_INPUT";
-           arg1Valid="false";
+           yell "ERROR:argSeconds not a digit.";
+           returnState="error_input";
        fi
     else
        yell "ERROR:No argument provided. Exiting.";
        exit 1;
     fi
 
-    # Consider whether arg2 was provided
+    # Consider whether argPrecision 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="$ARG2";
+       # Check that argPrecision is a positive integer
+       if [[ "$argPrecision" =~ ^[[:digit:]]+$ ]] && [[ "$argPrecision" -gt 0 ]]; then
+       precision="$argPrecision";
        else
-           yell "ERROR:ARG2 not a positive integer. (is $ARG2 ). Leaving early.";
-           returnState="ERROR_INPUT";
-           arg2Valid="false";
+           yell "ERROR:argPrecision not a positive integer. (is $argPrecision ). Leaving early.";
+           returnState="error_input";
        fi;
     else
-       arg2Valid="false";
+       :
     fi;
     
-    remainder="$ARG1" ; # seconds
+    remainder="$argSeconds" ; # seconds
     ## Calculate full years Y, update remainder
     fullYears=$(( remainder / (365*24*60*60) ));
     remainder=$(( remainder - (fullYears*365*24*60*60) ));
@@ -156,8 +160,6 @@ timeDuration(){
     fi;
     if $witherPrecision; then ((precision--)); fi;
 
-
-
     ## Determine whether or not the "T" separator is needed to separate date and time elements
     if ( $displayHours || $displayMinutes || $displaySeconds); then
        displayDateTime="true"; else displayDateTime="false"; fi
@@ -180,14 +182,17 @@ timeDuration(){
        OUTPUT=$OUTPUT$fullSeconds"S"; fi
 
     ## Output duration string to stdout
-    if [[ "$returnState" = "true" ]]; then echo "$OUTPUT"; fi
+    echo "$OUTPUT" && returnState="true";
 
     #===Determine function return code===
     if [ "$returnState" = "true" ]; then
        return 0;
-    else
-       echo "$returnState" 1>&2;
+    elif [ "$returnState" = "error_input" ]; then
+       yell "ERROR:input";
        return 1;
+    else
+       yell "ERROR:Unknown";
+       return 2;
     fi
 
 } # Get duration (ex: PT10M4S )