Remove members with no team from GitHub's org

run.ts

import 'dotenv/config'
import { Octokit } from '@octokit/core'

const org = process.env.SPONSORS_ORG!
const token = process.env.SPONSORS_TOKEN!

const octokit = new Octokit({ auth: token })

const allMembers = await fetchMembers(org)
const membersWithoutTeam = new Set(allMembers.map(m => m.login))

const allTeams = await getTeams(org)

const teams = (await Promise.all(
  allTeams.map(t => fetchMembers(org, t.slug)),
)).flat()

teams.forEach((element) => {
  membersWithoutTeam.delete(element.login)
})

console.log(`${membersWithoutTeam.size} members without a team`)

for (const name of membersWithoutTeam)
  await removeUser(org, name)

export async function fetchMembers(org: string, team?: string): Promise<{ login: string }[]> {
  const members = []

  let page = 1

  while (page) {
    const res = await octokit.request(
      team
        ? 'GET /orgs/{org}/teams/{team_slug}/members'
        : 'GET /orgs/{org}/members',
      {
        org,
        team_slug: team,
        per_page: 100,
        page,
      })

    if (res.data.length) {
      members.push(...res.data)
      page++
    }
    else {
      page = -1
    }
  }

  return members
}

export async function removeUser(org: string, name: string) {
  console.log(`Removing ${name} from ${org}`)
  await octokit.request('DELETE /orgs/{org}/members/{username}', {
    org,
    username: name,
  })
}

export async function getTeams(org: string) {
  const teams = []

  let page = 1

  while (page) {
    const res = await octokit.request('GET /orgs/{org}/teams', {
      org,
      per_page: 100,
      page,
    })

    if (res.data.length) {
      teams.push(...res.data)
      page++
    }
    else {
      page = -1
    }
  }

  return teams
}