#!/bin/bash

tmp=$(mktemp)
cat << \EOF > ${tmp}
decode() {
	awk -vid="$1" -vtype="$2" '$1 == id {
		match($0, /^[^=]*=\s*([^<]*)<([^>]*)>/, a);
		name = gensub(/\s+$/, "", "g", a[1]);
		email = a[2];
		print "export GIT_"type"_NAME='\''" name "'\'';"
		print "export GIT_"type"_EMAIL='\''" email "'\'';"
	}' ${author_file}
}
EOF

for x in cvs-authors authors ; do
	export author_file=${PWD}/.git/$x
	[ -e ${author_file} ] && break
done
git filter-branch \
	--env-filter ". ${tmp};"' \
		eval `decode "${GIT_AUTHOR_NAME}" AUTHOR`; \
		eval `decode "${GIT_COMMITTER_NAME}" COMMITTER`; \
' "$@"

rm -f $tmp