Create changelog when merge to release

post-merge

#!/bin/sh

if [ `git rev-parse --abbrev-ref HEAD` == "release" ]; then
        echo ":: POST MERGE ::"
        echo "BRANCH: RELEASE "

        date -u > changes.txt
        echo "" >> changes.txt

        echo "git log --oneline release..master"
        git log --oneline remotes/origin/release..master

        git log --oneline remotes/origin/release..master >> changes.txt
        cat changes.txt release_notes.md | cat - | cat > release_notes.md

        git add release_notes.md
        git commit -m 'Обновление примечаний к выпуску'
fi