Remove trailing whitespace

pre-commit

#!/bin/sh

# A git hook script to find and fix trailing whitespace
# in your commits. Bypass it with the --no-verify option
# to git-commit
#

if git-rev-parse --verify HEAD >/dev/null 2>&1 ; then
  against=HEAD
else
  # Initial commit: diff against an empty tree object
  against=4b825dc642cb6eb9a060e54bf8d69288fbee4904
fi

function fix_trailing_whitespace() {
  # Find files with trailing whitespace
  for FILE in `exec git diff-index --check --cached $against -- |
    sed '/^[+-]/d' | (sed -r 's/:[0-9]+:.*//' > /dev/null 2>&1 ||
    sed -E 's/:[0-9]+:.*//') | uniq` ; do
    # Fix them!
    (sed -i 's/[[:space:]]*$//' "$FILE" > /dev/null 2>&1 ||
      sed -i '' -E 's/[[:space:]]*$//' "$FILE")
    git add "$FILE"
  done
}

fix_trailing_whitespace
exit