git-plot

   1 #!/usr/bin/env bash
   2
   3 #=======================================================================
   4 # git-plot
   5 # File ID: 815ee2b8-c99a-11e2-b66c-001f3b596ec9
   6 # Plot a curve to show the Git commit activity
   7 # License: GNU General Public License version 2 or later.
   8 #=======================================================================
   9
  10 if test "$1" = "-2"; then
  11     shift
  12     tmpname=$(date +"%s").$$
  13     authorfile=/tmp/git-plot.$(date +"%s").$$.author.tmp
  14     commitfile=/tmp/git-plot.$(date +"%s").$$.commit.tmp
  15     git log --pretty="%at" "$@" | sort -n | inc_epstat >$authorfile
  16     git log --pretty="%ct" "$@" | sort -n | inc_epstat >$commitfile
  17     cat <<END | gnuplot --persist
  18     #!/usr/bin/gnuplot --persist
  19
  20     set xdata time
  21     set grid
  22     set timefmt "%s"
  23     set format x "%Y-%m-%d %H:%M:%S"
  24     set yrange [0.1:]
  25     set linetype 1 lc rgb "blue"
  26     set linetype 2 lc rgb "red"
  27     set linetype 3 lw 2 lc rgb "blue"
  28     set linetype 4 lw 2 lc rgb "red"
  29     plot "$commitfile" using 1:2 title "commit" w l lt 2, \
  30     "$authorfile" using 1:2 title "author" w l lt 1, \
  31     "$commitfile" using 1:2 title "bezier commit" s b w l lt 4, \
  32     "$authorfile" using 1:2 title "bezier author" s b w l lt 3
  33 END
  34 else
  35     tmpfile=/tmp/git-plot.$(date +"%s").$$.tmp
  36     git log --pretty="%ct" "$@" | ep | sort | inc_epstat >$tmpfile
  37     stpl -lp $tmpfile
  38 fi