On Tue, Apr 2, 2013 at 2:30 PM, Kirk, Benjamin (JSC-EG311) <
benjamin.kir...@nasa.gov> wrote:
> OK, at risk of entering dangerous territory…
>
> I've been using John's recommended git config flags, and have become
> ashamed of the amount of trailing whitespace I leave in source files.
>
I've played around with emacs' whitespace cleanup stuff but I don't like it
mainly because it removes all whitespace from a file you edit, generating
huge diffs.
So I switched to using pre-commit hooks in git.
Name the following script "pre-commit", chmod a+x it, and save it in the
.git/hooks directory of any git repo where you want to use it. The great
thing is that it only cleans up whitespace from *your commit* not the
entire file. I've been using it a few weeks now and would go back!
#!/bin/sh
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
# Find files with trailing whitespace
for FILE in `exec git diff-index --check --cached $against -- | sed
'/^[+-]/d' | sed -E 's/:[0-9]+:.*//' | uniq` ; do
# Fix them!
sed -i '' -E 's/[[:space:]]*$//' "$FILE"
git add "$FILE"
done
--
John
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