Admin/isatest/isatest-statistics

avoid unnamed infixes;
tuned;

#!/usr/bin/env bash
#
# $Id$
# Author: Makarius
#
# DESCRIPTION: Produce statistics from isatest session logs.

ISATEST_LOG=~isatest/log

## platform settings

case $(uname) in
	SunOS)	
		ZGREP=xgrep 
		TE="png color"
	;;
	*)	
		ZGREP=zgrep
		TE="png"
	;;
esac

## diagnostics

PRG="$(basename "$0")"

function usage()
{
  echo
  echo "Usage: $PRG DIR PLATFORM TIMESPAN SESSIONS..."
  echo
  echo "  Produce statistics from isatest session logs, looking TIMESPAN"
  echo "  days into the past.  Outputs .png files into DIR."
  echo
  exit 1
}

function fail()
{
  echo "$1" >&2
  exit 2
}


## arguments

[ "$1" = "-?" ] && usage
[ "$#" -lt "4" ] && usage

DIR="$1"; shift
PLATFORM="$1"; shift
TIMESPAN="$1"; shift
SESSIONS="$@"


## main

ALL_DATA="/tmp/isatest-all$$.dat"
SESSION_DATA="/tmp/isatest$$.dat"
mkdir -p "$DIR" || fail "Bad directory: $DIR"

$ZGREP "^Finished .*elapsed" \
  $(find "$ISATEST_LOG" -name "isatest-makeall-${PLATFORM}*" -ctime "-${TIMESPAN}") | \
perl -e '
  while (<>) {
    if (m/isatest-makeall-.*-(\d+)-(\d+)-(\d+)-.*:Finished (\S+) \(.*, (\d+):(\d+):(\d+) cpu time\)/) {
        my $year = $1;
        my $month = $2;
        my $day = $3;
        my $name = $4;
        my $time = ($5 * 3600 + $6 * 60 + $7) / 60;

        printf "$name $year-$month-$day %.2f\n", $time;
    }
  }' > "$ALL_DATA"

for SESSION in $SESSIONS
do
  fgrep "$SESSION " "$ALL_DATA" > "$SESSION_DATA"
  gnuplot <<EOF
set terminal $TE
set output "$DIR/${SESSION}.png"
set xdata time
set timefmt "%Y-%m-%d"
set format x "%d-%b"
set xlabel "$SESSION"
plot [] [0:] "$SESSION_DATA" using 2:3 smooth sbezier notitle, "$SESSION_DATA" using 2:3 smooth csplines notitle
EOF
done

rm -f "$ALL_DATA" "$SESSION_DATA"