Bash script to migrate multiple projects into one Lerna monorepo (https://lernajs.io)

migrate-to-lerna.sh

#!/usr/bin/env bash

set -x
shopt -s extglob dotglob

TEMP_DIR=tmp
USERNAME=psichi
REPOS=(chix)

function clone_repo () {
  git clone git@github.com:$USERNAME/$1.git
  cd "$1"
  mkdir -p "packages/$1"
  git mv !(packages|.git|..|.) packages
  cd packages
  git mv !("$1") "$1"
  cd "$HOME/$TEMP_DIR/$1"
  git add . -A
  git commit -m "Move source to packages/$1" -n
  cd "$HOME/$TEMP_DIR"
}

rm -rf "$HOME/$TEMP_DIR"
mkdir "$HOME/$TEMP_DIR"
cd "$HOME/$TEMP_DIR"

git init

for repo in "${REPOS[@]}"
do
  clone_repo $repo
done

mkdir lerna-monorepo
cd lerna-monorepo
git init


for repo in "${REPOS[@]}"
do
  git pull $HOME/$TEMP_DIR/$repo master --allow-unrelated-histories -s resolve
done

set +x
shopt -u extglob dotglob