wow, more nice new scripts. time tracker lets different activities be tracked for...

[feisty_meow.git] / scripts / system / time_tracker.sh

diff --git a/scripts/system/time_tracker.sh b/scripts/system/time_tracker.sh
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+++ b/scripts/system/time_tracker.sh
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+#!/bin/bash
+
+# some helpful functions for counting a named duration.
+
+# start tracking time for a named purpose, passed as the first parameter.
+function start_time_tracking()
+{
+  local varname="$1"; shift
+  if [ -z "$varname" ]; then echo must pass variable name to start_time_tracking; return 1; fi
+  local startvar="${varname}_START"
+  eval $startvar="$(date +"%s")"
+}
+
+# stop tracking the named time duration.
+function end_time_tracking()
+{
+  local varname="$1"; shift
+  if [ -z "$varname" ]; then echo must pass variable name to end_time_tracking; return 1; fi
+  local endvar="${varname}_END"
+  eval $endvar="$(date +"%s")"
+}
+
+# display the time taken for a named duration.
+function show_tracked_duration()
+{
+  varname="$1"; shift
+  if [ -z "$varname" ]; then echo must pass variable name to end_time_tracking; return 1; fi
+  # calculate the time taken.
+  local startvar="${varname}_START"
+  local endvar="${varname}_END"
+  duration="$((${!endvar} - ${!startvar}))"
+  # separate it into hours and minutes.
+  minutes="$(($duration / 60))"
+  hours="$(($duration / 60))"
+  # subtract the hours from the minutes sum for modulo.
+  minutes="$(($minutes - $hours * 60))"
+  # fashion conceit, add zeroes.
+  if (($minutes < 10)); then minutes="0$minutes"; fi
+  if (($hours < 10)); then hours="0$hours"; fi
+  echo "Time taken for ${varname}: ${hours}:${minutes} hh:mm (a total of $duration seconds)"
+}
+
+