Function getCommandSubcommandPrefixImpl

src/utils/shell/prefix.ts:332–367

(
  command: string,
  abortSignal: AbortSignal,
  isNonInteractiveSession: boolean,
  getPrefix: ReturnType<typeof createCommandPrefixExtractor>,
  splitCommandFn: (command: string) => string[] | Promise<string[]>,
)

}

async function getCommandSubcommandPrefixImpl(
  command: string,
  abortSignal: AbortSignal,
  isNonInteractiveSession: boolean,
  getPrefix: ReturnType<typeof createCommandPrefixExtractor>,
  splitCommandFn: (command: string) => string[] | Promise<string[]>,
): Promise<CommandSubcommandPrefixResult | null> {
  const subcommands = await splitCommandFn(command)

  const [fullCommandPrefix, ...subcommandPrefixesResults] = await Promise.all([
    getPrefix(command, abortSignal, isNonInteractiveSession),
    ...subcommands.map(async subcommand => ({
      subcommand,
      prefix: await getPrefix(subcommand, abortSignal, isNonInteractiveSession),
    })),
  ])

  if (!fullCommandPrefix) {
    return null
  }

  const subcommandPrefixes = subcommandPrefixesResults.reduce(
    (acc, { subcommand, prefix }) => {
      if (prefix) {
        acc.set(subcommand, prefix)
      }
      return acc
    },
    new Map<string, CommandPrefixResult>(),
  )

  return {
    ...fullCommandPrefix,
    subcommandPrefixes,
  }
}