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|
#!/bin/sh
#
# growthplot -- plot the fetchmail population's growth as a function of time
#
# Get data from the NEWS file
timeseries >/tmp/growthplot$$
grep "^[0-9]" /tmp/growthplot$$ >/tmp/growthnumbers$$
grep "^[0-9.]*.[05].0 " /tmp/growthplot$$ >/tmp/growthmajors$$
sed '/^4.2.9/,$d' </tmp/growthnumbers$$ >/tmp/growthannounce$$
cat >/tmp/growthimage$$ <<EOF
set title "Fetchmail project growth history"
set xlabel 'Days since baseline'
set ylabel 'Participants'
set y2label 'Lines of code'
set ytics nomirror
set y2tics
set tics out
set autoscale y
set y2range [5000:50000]
set key bottom right box
set terminal gif
EOF
# OK, now write the event labels
(
echo "count=0"
echo "breakheight=510"
while read version size friends announce total days date
do
if [ "$version" = '%' ]
then
legend="$friends $announce $total $days $date"
echo "# Associate $lastday to '$legend'"
echo "count = count + 1"
echo "lastday = $lastday - 5"
echo "lasttotal = $lasttotal"
echo set arrow \
from lastday, breakheight \
to lastday, lasttotal+50 \
head
echo "endx = lastday + 50 + count * 25"
echo "endy = breakheight + 50 + count * 50"
echo "set arrow \
from lastday, breakheight to endx, endy nohead"
echo "set label '$legend' at endx+10, endy"
else
lastday=$days
lasttotal=$total
fi
done
) </tmp/growthplot$$ >>/tmp/growthimage$$
# OK, now write the major-release labels
(
while read version size friends announce total days date
do
echo "set arrow from $days, $total - 55 to $days, $total - 15 head"
echo "set label '$version' at $days - 5, $total - 65"
done
) </tmp/growthmajors$$ >>/tmp/growthimage$$
cat >>/tmp/growthimage$$ <<EOF
plot [] [0:] '/tmp/growthnumbers$$' using 6:5 \
title "Both lists" with points 3, \
'/tmp/growthannounce$$' using 6:4 \
title "fetchmail-announce" with points 4, \
'/tmp/growthannounce$$' using 6:3 \
title "fetchmail-friends" with points 2, \
'/tmp/growthnumbers$$' using 6:2 axes x1y2 \
title "Lines of code" with points 6
EOF
# The gnuplot driver for PNG doesn't do color
if gnuplot /tmp/growthimage$$ >growth.gif
then
gif2png -s -d growth.gif
else
echo "Plot failed."
fi
rm -f /tmp/growth*
# growthplot ends here
|
