blob: 12cca27f48f9bccbd2d0e6cb7fcb539d6bddaa82 (
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#!/bin/bash
git filter-branch -f --tag-name-filter cat --commit-filter '
MESSAGE="$(git show --format=%B "$GIT_COMMIT")"
SOB_LINE="$(echo "$MESSAGE" | sed -ne "s|^ *Signed-off-by: *||p" | head -n1)"
SOB_AUTHOR="$(echo "$SOB_LINE" | sed -e "s|^\(.*\) <.*>\$|\\1|")"
SOB_EMAIL="$(echo "$SOB_LINE" | sed -e "s|^.* <\(.*\)>\$|\\1|")"
if [ -n "$SOB_AUTHOR" -a -n "$SOB_EMAIL" ] && \
[ "$GIT_AUTHOR_NAME <$GIT_AUTHOR_EMAIL>" != "$SOB_AUTHOR <$SOB_EMAIL>" ] && \
! echo "$MESSAGE" | grep -sqE "^ *Signed-off-by: *$GIT_AUTHOR_NAME <$GIT_AUTHOR_EMAIL>"; then
printf "\nRewrite $GIT_COMMIT: $GIT_AUTHOR_NAME <$GIT_AUTHOR_EMAIL> => $SOB_AUTHOR <$SOB_EMAIL>\n" >&2
export GIT_AUTHOR_NAME="$SOB_AUTHOR"
export GIT_AUTHOR_EMAIL="$SOB_EMAIL"
fi
git commit-tree "$@"
' -- "${1:-HEAD~1..HEAD}"
git for-each-ref --format="%(refname)" refs/original/ | xargs -r -n 1 git update-ref -d
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