fix whitespace problems in source tree

commands.txt

# this find command lists all text files excluding files (e.g. binary files) that shouldn't be touched.
# you might want to add more file name extensions for your project if [1] outputs extensions of files
# that you don't want to have processed
#
# the commands below were tested on Ubuntu, your milage may vary on Mac OS (please leave a comment if so)

find . -regextype posix-extended -type f -size +0 ! -iregex '.*/\.(svn|git)/.*' ! -iregex '.*\.(gif|png|jpe?g|ico|psd|ai|jar|db|odt|pdf|swf|rtf|zip|eps|sqlite3?|mo|air|mp3|wav|otf|eot|ttf|woff)$'

# append this to add missing newline at EOF
-print0 | xargs -0 printf "e %s\nw\n" | ed -s;

# or append this to fix trailing whitespace
-exec sed -i 's/[ \t]*$//' '{}' ';'

# or append this to replace tabs with two spaces
-exec sed -i 's/\t/  /g' '{}' ';'

# [1] append this to list all filename extensions
-printf '%f\n' | sed -r 's/(.*)\.([^\.]+)$/\2/i' | LC_COLLATE=C sort | uniq