Bash script to migrate all repositories from GitHub organization to GitLab group

gh2gl.sh

# This script migrates all repositories from GitHub organization to GitLab group.
#
# Prerequisites:
# - Linux
# - install Git
# - install and auth GitHub CLI
# - install and auth GitLab CLI
# - create target GitLab group 
#
# Limitations:
# - 4000 GitHub repos at max
# - only master branch, tags and description
# - all cloned repos will be private

# When you done, manually remove this folder
mkdir clone
cd clone

# Replace GH_ORG with org name
gh repo list GH_ORG --limit 4000 | while read -r repo _; do
  gh repo clone "$repo" "$repo"
done
cd GH_ORG

# Replace GL_GROUP with group name
ls | xargs -I {} bash -c 'cd {} && glab repo create --private --group GL_GROUP --remoteName clone --description "$(gh repo view --json description --jq .description)" && git push clone && git push clone --tags'