Shell script to migrate a repo from one server to another along with branches & commit history

migrate_git_repo.sh

#!/bin/sh

# ensure correct number of arguments are passed
if [ "$#" -ne 3 ]; then
  echo "Usage: $0 <SOURCE Repo URL> <DIR to clone to> <TARGET Repo URL>" >&2
  echo "example: /.migrate_git_repo.sh git@git.example.com:sampleuser/source_repo.git some_folder_name ssh://git@othergit.example.com:otheruser/destination_repo.git"
  return
fi

srcRepo=$1
cloneToDir=$2
targetRepo=$3

echo "\n\n"

echo About migrate $srcRepo to $targetRepo via the folder $cloneToDir

# clone to local folder, clone and checkout all branches of the repo
git clone --mirror $srcRepo

cd ./$cloneToDir.git

# fetch everything to local
git fetch --tags
git fetch -a
git tag

# this should list all the branches, check none are red (red indicate its not checkedout locally and probably will be missed)
git branch -a

# move origin from source to target
git remote rm origin
git remote add origin $targetRepo

# push all local repo refs to target
git push origin --all
git push --tags

# clean up the cloned folder
#rm -rf ./$cloneToDir

# Get back to where the script was triggerred from
cd -

echo Done migrating $srcRepo to $targetRepo