joystream/storage-node-v2/src/commands/dev/multihash.ts

import { Command, flags } from '@oclif/command'
import { hashFile } from '../../services/helpers/hashing'

export default class DevMultihash extends Command {
  static description = 'Creates a multihash (blake3) for a file.'

  static flags = {
    help: flags.help({ char: 'h' }),
    file: flags.string({
      char: 'f',
      required: true,
      description: 'Path for a hashing file.',
    }),
  }

  async run(): Promise<void> {
    const { flags } = this.parse(DevMultihash)

    console.log(`Hashing ${flags.file}`)

    const multi = await hashFile(flags.file)

    console.log(multi)
  }
}