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e2603cf Oct 17, 2014
@imoldman @TimothyGu
executable file 61 lines (55 sloc) 1.68 KB
#!/bin/bash
#
# A git hook script to find and fix trailing whitespace
# in your commits. Bypass it with the --no-verify option
# to git-commit
#
# usage: make a soft link to this file, e.g., ln -s ~/config/pre-commit.git.sh ~/some_project/.git/hooks/pre-commit
# detect platform
platform="win"
uname_result=`uname`
if [ "$uname_result" = "Linux" ]; then
platform="linux"
elif [ "$uname_result" = "Darwin" ]; then
platform="mac"
fi
# change IFS to ignore filename's space in |for|
IFS="
"
# autoremove trailing whitespace
for line in `git diff --check --cached | sed '/^[+-]/d'` ; do
# get file name
if [ "$platform" = "mac" ]; then
file="`echo $line | sed -E 's/:[0-9]+: .*//'`"
else
file="`echo $line | sed -r 's/:[0-9]+: .*//'`"
fi
# display tips
echo -e "auto remove trailing whitespace in \033[31m$file\033[0m!"
# since $file in working directory isn't always equal to $file in index, so we backup it
mv -f "$file" "${file}.save"
# discard changes in working directory
git checkout -- "$file"
# remove trailing whitespace
if [ "$platform" = "win" ]; then
# in windows, `sed -i` adds ready-only attribute to $file(I don't kown why), so we use temp file instead
sed 's/[[:space:]]*$//' "$file" > "${file}.bak"
mv -f "${file}.bak" "$file"
elif [ "$platform" == "mac" ]; then
sed -i "" 's/[[:space:]]*$//' "$file"
else
sed -i 's/[[:space:]]*$//' "$file"
fi
git add "$file"
# restore the $file
sed 's/[[:space:]]*$//' "${file}.save" > "$file"
rm "${file}.save"
done
if [ "x`git status -s | grep '^[A|D|M]'`" = "x" ]; then
# empty commit
echo
echo -e "\033[31mNO CHANGES ADDED, ABORT COMMIT!\033[0m"
exit 1
fi
# Now we can commit
exit