#!/bin/sh
# Prepare "What's in git.git"

maint_at=$(git rev-parse --verify refs/heads/maint)
master_at=$(git rev-parse --verify refs/heads/master)

log () {
	git log --no-merges "$@" |
	git shortlog |
	perl -pe 'if (!/^    / && !/^$/) { s/^/   / }'
}

echo "To: git@vger.kernel.org"
echo "Subject: What's in git.git"
echo "X-maint-at: $maint_at"
echo "X-master-at: $master_at"

tagged=`git rev-parse --not --verify tags/sa/maint`
list=`git-rev-list $tagged refs/heads/maint 2>/dev/null`
if test -n "$list"
then
	echo
	echo "* The 'maint' branch has these fixes since the last announcement."
	echo
	log $tagged heads/maint
fi

tagged=`git rev-parse --not --verify tags/sa/master`
list=`git-rev-list $tagged refs/heads/master 2>/dev/null`
if test -n "$list"
then
	echo
	echo "* The 'master' branch has these since the last announcement."
	echo
	log $tagged heads/master
fi

list=`git-rev-list refs/heads/master..refs/heads/next 2>/dev/null`
if test -n "$list"
then
	echo
	echo "* The 'next' branch, in addition, has these."
	echo
	log heads/master..heads/next ^heads/cleannext
fi

list=`git-rev-list ^refs/heads/master ^refs/heads/next refs/heads/pu 2>/dev/null`
if test -n "$list"
then
	echo
	echo "* The 'pu' branch, in addition, has these."
	echo
	log ^heads/master heads/next..heads/pu
fi