How to import repositories from Self-Managed GitHub Enterprise instances into GitLab

github_import.sh

# Import Project from GitHub Enterprise Self Managed to Gitlab.
# More info: https://docs.gitlab.com/ee/user/project/import/github.html#use-the-api
#
# Usage ./github_import.sh repo_id <Repo name>
# To find repo_id and name of the repos, do something like:
# curl -L \
#   -H "Accept: application/vnd.github+json" \
#   -H "Authorization: Bearer <YOUR-TOKEN>" \
#   -H "X-GitHub-Api-Version: 2022-11-28" \
#   https://some.enterprise.com/api/v3/orgs/ORG/repos \
#   | jq -c '.[] | [.id, .name]'
# See more details at https://docs.github.com/en/enterprise-server/rest/repos/repos
#!/bin/bash

personal_access_token=GITHUB_TOKEN
gl_personal_token=GITLAB_TOKEN
target_namespace=namespace/subgroup
github_hostname=some.enterprise.com

echo repo_id: $1
echo repo name: $2

curl --request POST \
  --url "https://gitlab.com/api/v4/import/github" \
  --header "content-type: application/json" \
  --header "Authorization: Bearer $gl_personal_token" \
  --data '{
    "personal_access_token": "'$personal_access_token'",
    "repo_id": "'$1'",
    "target_namespace": "'$target_namespace'",
    "new_name": "'$2'",
    "github_hostname": "https://'$github_hostname'",
    "optional_stages": {
      "single_endpoint_notes_import": true,
      "attachments_import": true,
      "collaborators_import": true
    }
}'

echo