gistfile1.txt

# Loop through git revisions, counting lines of Python
# code, unit test code, cucumber code, and media. The
# paths and filenames are specific to my project; if
# you want to use this, you'll have to change them.

reverse() {
  sed 'x;1!H;$!d;x'
}
(echo 'rev,python code,unit test,cucumber,media' &&
git rev-list HEAD |
reverse |
while read rev; do
  git co $rev
  echo "\
    $rev \
    , \
    `find . -iname '*.py' | grep -v tests.py | xargs cat | wc -l` \
    , \
    `find . -iname 'tests.py' | xargs cat | wc -l` \
    , \
    `find features | grep -v watir | xargs cat | wc -l` \
    , \
    `find static | xargs cat | wc -l` \
  " | sed 's/[[:space:]]//g'
done 2>/dev/null) > stats.csv



# As I originally typed it:
(echo 'rev,python code,unit test,cucumber,media' && git rev-list HEAD | sed 'x;1!H;$!d;x' | while read rev; do git co $rev; echo "$rev,`find . -iname '*.py' | grep -v tests.py | xargs cat | wc -l`,`find . -iname 'tests.py' | xargs cat | wc -l`,`find features | grep -v watir | xargs cat | wc -l`,`find static | xargs cat | wc -l`"; done 2>/dev/null) > stats.csv