Method parse

packages/migrate/src/commands/MigrateDiff.ts:118–316

(argv: string[], config: PrismaConfigInternal, baseDir: string)

`)

  public async parse(argv: string[], config: PrismaConfigInternal, baseDir: string): Promise<string | Error> {
    const args = arg(
      argv,
      {
        '--help': Boolean,
        '-h': '--help',
        '--output': String,
        '-o': '--output',
        // From
        '--from-empty': Boolean,
        '--from-config-datasource': Boolean,
        '--from-schema': String,
        '--from-migrations': String,
        // To
        '--to-empty': Boolean,
        '--to-config-datasource': Boolean,
        '--to-schema': String,
        '--to-migrations': String,
        // Others
        '--script': Boolean,
        '--exit-code': Boolean,
        '--telemetry-information': String,
        '--config': String,
        // Removed, but parsed to show help error
        '--from-url': String,
        '--to-url': String,
        '--from-schema-datasource': String,
        '--to-schema-datasource': String,
        '--from-schema-datamodel': String,
        '--to-schema-datamodel': String,
        '--from-local-d1': Boolean,
        '--to-local-d1': Boolean,
      },
      false,
    )

    if (isError(args)) {
      return this.help(args.message)
    }

    if (args['--help']) {
      return this.help()
    }

    const removedTargetParameterHint = Object.keys(args)
      .map(getRemovedTargetParameterHint)
      .find((msg) => msg !== undefined)
    if (removedTargetParameterHint) {
      return this.help(removedTargetParameterHint)
    }

    const numberOfFromParameterProvided =
      Number(Boolean(args['--from-empty'])) +
      Number(Boolean(args['--from-config-datasource'])) +
      Number(Boolean(args['--from-schema'])) +
      Number(Boolean(args['--from-migrations']))

    const numberOfToParameterProvided =