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#!/usr/bin/env bash
# A script to check prettyness for a range of commits
CALLNAME="$0"
function usage
{
>&2 echo "usage: $CALLNAME <commit> <commit>"
>&2 echo "The order of commits is as given to 'git diff'"
}
if [ "$#" != 2 ];
then
usage
exit 1
fi
BASE_COMMIT="$1"
HEAD_COMMIT="$2"
bad=()
while IFS= read -r commit; do
echo Checking "$commit"
# git diff --check
# uses .gitattributes to know what to check
if ! git diff --check "${commit}^" "$commit";
then
bad+=("$commit")
fi
done < <(git rev-list "$HEAD_COMMIT" --not "$BASE_COMMIT" --)
if [ "${#bad[@]}" != 0 ]
then
>&2 echo "Whitespace errors!"
>&2 echo "In commits ${bad[*]}"
>&2 echo "If you use emacs, you can prevent this kind of error from reocurring by installing ws-butler and enabling ws-butler-convert-leading-tabs-or-spaces."
exit 1
fi
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