createintegrationbranch

#!/usr/bin/zsh

default_branch=${1:-main}
new_branch=${2:-integration}

autoload colors
colors

git fetch
git checkout $default_branch 
git pull
[[ $(git branch -l 'pr-*' --merged) ]] && git branch -d $(git branch -l 'pr-*' --merged) # delete already merged PR branches

for arg in $@; do
	git fpr $arg
done

own_branches=("${(f)"$(grep -v '^#' .merge)"}")
prs=(${(f)"$(git branch -l 'pr-*' | pcregrep -o1 '(pr-[\w+]+)$')"})

for pr in $prs; do
	if [[ ${pr/pr-/} =~ ^[0-9]+$ ]]; then
		git checkout $pr
		git reset --hard origin/pr/${pr/pr-/}
	fi
done

git rev-parse --quiet --verify $new_branch && (git branch -m $new_branch $new_branch.b-$(git log -1 --format=%cd --date=format-local:'%Y-%m-%d-%H%M' $new_branch) || exit) # backup old integration branch
git checkout $default_branch
git checkout -b $new_branch

echo

merged=()
failed=()

for b in $own_branches $prs; do
	echo "$fg_bold[default]Merging branch $b...$reset_color"
	if git merge --no-ff --no-edit $b; then
		merged+=$b
	else
		git merge --abort
		echo "$fg[red]Aborted merging branch $b$fg[default]"
		failed+=$b
	fi
	echo
done

echo "$fg[green]Merged: $merged $fg[default]"
echo "$fg[red]Failed: $failed"