Graphing a pattern in your subversion history

gistfile1.sh

# Today I wanted to draw a graph of the growth of our Cucumber scenarios in our
# ./feature directory since it's inception. It's in subversion, which provides
# rubbish history search support. Rubbish as in none whatsoever.

    export REPO=http://path/to/your/features/directory

    svn log $REPO | 
        egrep '^r[0-9]{1,}' |
        cut -d ' ' -f 1 |
        awk -v repo=$REPO '{print "svn export --force -" $1 " " repo " " $1 " 2>&1"}' |
        /bin/sh |
        egrep -o 'r[0-9]{1,}' |
        sort |
        uniq |
        xargs grep -Ri "Scenario" {} |  <--- do whatever you want here - egrep, find ...
        cut -d '/' -f 1 |
        uniq -c |
        sed "s/^[ ]*//"

# So, you end up with something like this, with the _grep_ pattern counts in the left
# column and the corresponding svn revision in the second column. Drop it in to something
# that will draw a graph.

    1 r566392
    2 r580349
    2 r583308
    7 r593852
    9 r595020
    10 r597830
    12 r611429
    13 r611990
    21 r612830
    27 r617732
    31 r621204
    ...

it's almost like git grep didn't exist.