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: 1.0.5
# 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 (gnucoreutils)
- local returnState fullHours fullMinutes fullSeconds;
- ARG1="$1";
- ARG2="$2";
+ # 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
- 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) ));
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
+ 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"
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"
+ output="P"
if $displayYears; then
- OUTPUT=$OUTPUT$fullYears"Y"; fi
+ output=$output$fullYears"Y"; fi
if $displayMonths; then
- OUTPUT=$OUTPUT$fullMonths"M"; fi
+ output=$output$fullMonths"M"; fi
if $displayDays; then
- OUTPUT=$OUTPUT$fullDays"D"; fi
+ output=$output$fullDays"D"; fi
if $displayDateTime; then
- OUTPUT=$OUTPUT"T"; fi
+ output=$output"T"; fi
if $displayHours; then
- OUTPUT=$OUTPUT$fullHours"H"; fi
+ output=$output$fullHours"H"; fi
if $displayMinutes; then
- OUTPUT=$OUTPUT$fullMinutes"M"; fi
+ output=$output$fullMinutes"M"; fi
if $displaySeconds; then
- OUTPUT=$OUTPUT$fullSeconds"S"; fi
+ output=$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 [ "$returnState" = "error_input" ]; then
+ yell "ERROR:input";
return 1;
+ else
+ yell "ERROR:Unknown";
+ return 2;
fi
} # Get duration (ex: PT10M4S )
echo "Precision 2 duration:$(timeDuration "$(date +%s)" 2)"
echo "Precision 1 duration:$(timeDuration "$(date +%s)" 1)"
echo "Precision 6 duration:$(timeDuration $((60+60*60+60*60*24+60*60*24*30+60*60*24*365 - (60+60*60+60*60*24+60*60*24*30) )) 6)"
-timeDuration "$@"
+echo "Zero seconds:$(timeDuration "0")";
+echo "Parsing argument provided to script:\"$*\""; timeDuration "$@"
#==END sample code==
# Author: Steven Baltakatei Sandoval
projects / BK-2020-03.git / blobdiff