Import all projects from a GitHub account into a GitLab account

migrate_github_to_gitlab.sh

#!/bin/bash

# GitHub & GitLab personal access tokens
GITHUB_TOKEN=<Github PAT Token>
GITLAB_TOKEN=<Gitlab PAT Token>

# Usernames for GitHub & GitLab
GITHUB_USERNAME=<Github Username>
GITLAB_NAMESPACE=<Gitlab username>

# URL of your GitLab instance (default is gitlab.com)
GITLAB_URL="https://gitlab.com"

# Fetch all repos from GitHub
repos=$(curl -s -H "Authorization: token $GITHUB_TOKEN" "https://api.github.com/users/$GITHUB_USERNAME/repos?per_page=100" | jq -c '.[] | {name: .name, id: .id}')

for repo_info in $repos; do
  repo_name=$(echo "$repo_info" | jq -r '.name')
  repo_id=$(echo "$repo_info" | jq -r '.id')
  
  echo "Importing $repo_name from GitHub to GitLab..."
  
  # Trigger the import process using GitLab's API
  curl -s --header "PRIVATE-TOKEN: $GITLAB_TOKEN" \
       --data "personal_access_token=$GITHUB_TOKEN" \
       --data "repo_id=$repo_id" \
       --data "target_namespace=$GITLAB_NAMESPACE" \
       "$GITLAB_URL/api/v4/import/github"
  
  sleep 2  # A slight delay to not overwhelm the API, can be adjusted
done

echo "All repos imported or import triggered. Check GitLab for status."