index.ts

import axios from 'axios';
import * as JSONC from '@sqs/jsonc-parser'

const getUsersQuery = `query AllUsers {
	users {
		nodes {
			id
			username
			latestSettings {
				id
				contents
			}
		}
	}
}`;


const api = axios.create({
    baseURL: 'https://sourcegraph.com/.api/',
    timeout: 1000,
    headers: {'Authorization': 'token <redacted>'}
});

api.defaults.timeout = 10000

interface Res<T> {
    data: T
}

interface User {
    id: string
    latestSettings: {
        id: number
        contents: string
    }
}

async function enableCodeCovForUsersWhoUseIt(): Promise<void> {
    const res = await api.post<Res<{users: {nodes: User[]}}>>('/graphql', {
        query: getUsersQuery
    })

    const users = res.data.data.users.nodes

    for (const user of users) {
        if (user.latestSettings) {
            const parsed = JSONC.parse(user.latestSettings.contents)

            if (!parsed || !parsed.extensions || typeof parsed.extensions['sourcegraph/codecov'] !== 'undefined') {
                continue
            }

            const hasCodecovKeys = Object.keys(parsed).find(key => !!key.match(/^codecov/))
            if (!hasCodecovKeys) {
                continue
            }


            // Do the settings
            await enableCodecovForSubject(user.id, user.latestSettings.id)
        }
    }
}

const updateSettingsForUserMutation = `mutation UpdateSettings($input: SettingsMutationGroupInput!, $edit: SettingsEdit!) {
  settingsMutation(input: $input) {
    editSettings(edit: $edit) {
      empty {
        alwaysNil
      }
    }
  }
}`;

/**
 * Input shape for the above
 *
 * {
 *     "input": {
 *         "subject": "VXNlcjoxNDM0",
 *         "lastID": 6105
 *     },
 *     "edit": {
 *         "keyPath": [{"property": "extensions"}, {"property": "sourcegraph/codecov"}],
 *         "value": false
 *     }
 * }
 */

async function enableCodecovForSubject(id: string, settingsID: number): Promise<void> {
    await api.post('/graphql', {
        query: updateSettingsForUserMutation,
        variables: {
            input: {
                subject: id,
                lastID: settingsID
            },
            edit: {
                keyPath: [{"property": "extensions"}, {"property": "sourcegraph/codecov"}],
                value: true
            }
        }
    })
}

enableCodeCovForUsersWhoUseIt().then(() => console.log('done.')).catch(err => {
    console.error('Error during execution:', err)
})

package.json

{
  "name": "settings-update",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "run": "ts-node index.ts"
  },
  "author": "",
  "license": "ISC",
  "devDependencies": {
    "prettier": "^1.15.3",
    "ts-node": "^7.0.1",
    "tslint": "^5.11.0",
    "typescript": "^3.2.1"
  },
  "dependencies": {
    "@sqs/jsonc-parser": "^1.0.3",
    "axios": "^0.18.0"
  }
}

tsconfig.json

{
  "compilerOptions": {
      "lib": ["es2017", "dom"],
      "moduleResolution": "node"
  },
  "include": ["src"]
}