added support for drawing the size chart

plot.rb

@@ -1,30 +1,51 @@
+# coding: utf-8
 users = ["christoffermadsen","jmaa","jacob","alexander"]
+colors = {}
+users.each do |user|
+  colors[user] = "%06x" % (rand * 0xffffff)
+end
 log_dir = "./log/"
-plotstring = %Q[set terminal 'svg' size 1000,400
-set output "/home/christoffermadsen/public_html/img/screenshot_count.svg"
-set title "Screenshot count"
+plotstring = %Q[set terminal 'svg' size 800,400
 set key bottom outside
 
 set style line 1 lt 1 lw 2 pt 7 ps 0.4
 
+set xlabel "Time"
 set xdata time
 set timefmt "%s"
 set format x "%m/%d"
-set yrange [0:500]
-set xlabel "Time"
+set xtics 172800
+set mxtics 2
+set grid ytics mytics xtics mxtics
+
+set title "Screenshot count"
+set output "/home/christoffermadsen/public_html/img/screenshot_count.svg"
 set ylabel "Count"
+set yrange [0:]
 set ytics 100
 set mytics 2
-set grid ytics mytics xtics
-set grid
-set xtics 432000
+
+plot ]
+
+users.each do |user|
+  plotstring += %Q["log/#{user}.log" using 1:2 with lines ls 1 lc rgb '##{colors[user]}' t "#{user}", \\\n]
+end
+
+plotstring += %Q[
+set title "Screenshot size"
+set output "/home/christoffermadsen/public_html/img/screenshot_size.svg"
+set ylabel "Size (MB)"
+set yrange [0:100]
+set ytics 10
+set mytics 1
 
 plot ]
 
 users.each do |user|
   colour = "%06x" % (rand * 0xffffff)
-  plotstring += %Q["log/#{user}.log" using 1:2 with lines ls 1 lc rgb '##{colour}' t "#{user}", \\\n]
+  plotstring += %Q["log/#{user}.log" using 1:($3/10**6) with lines ls 1 lc rgb '##{colors[user]}' t "#{user}", \\\n]
 end
+
 output = File.open("plotscript","w")
 output << plotstring
 output.close

update.rb

@@ -3,13 +3,12 @@ shot_dir = "/var/shots/"
 log_dir = "./log/"
 users.each do |user|
   size = `du -B1 #{shot_dir}#{user}/ | awk {'print $1'} | head -n 1`
-  size.delete! "\n"
   count = `ls -1 #{shot_dir}#{user}/ | wc -l | head -n 1`
-  count.delete! "\n"
-  
+
+  [size,count].each do |x|
+    x.delete! "\n"
+  end
   output = File.open("#{log_dir}/#{user}.log","a")
   output << "#{Time.now.to_i} #{count} #{size}\n"
   output.close
-
-  puts "#{user} has size #{size} with #{count} screenshots"
 end