#! /opt/bin/dash
#
PATH="/bin:/usr/bin"; export PATH

export GDFONTPATH="/usr/share/fonts/open-sans"
export GNUPLOT_DEFAULT_GDFONT="OpenSans-Semibold"

if [ -z "$1" ]; then
  echo "Usage: ${0}: fname" 1>&2; exit 1
fi

f="$1"

echo "$f.log -> $f.out, $f.gif"

title="BV $f"
xlabel="qubits"
ylabel="secs"

labels="set title \"$title\"\nset xlabel \"$xlabel\"\nset ylabel \"$ylabel\""

egrep ', n = |^real ' "$f.log" | while read x1 x2 x3 x4 x5 x6 x7 rest
do
  if read y1 y2; then
    echo "$x7 $y2"
  fi
done | tee "$f.out" |

(echo "set term gif\nset output\n $labels\nset logscale y\nplot '-' notitle with linespoints"; cat) |
 gnuplot > "$f.gif"