Function resolveCommand

cli/src/framework/registry.ts:14–43

(
  tree: CommandTree,
  argv: string[],
)

}

export function resolveCommand(
  tree: CommandTree,
  argv: string[],
): { command: CommandConstructor, path: string[] } | undefined {
  const path: string[] = []
  let node: CommandNode | undefined
  let lastMatch: { command: CommandConstructor, path: string[] } | undefined

  for (let i = 0; i < argv.length; i++) {
    const token = argv[i]
    if (token === undefined || token.startsWith('-'))
      break

    const next = path.length === 0 ? tree[token] : node?.subcommands[token]
    if (!next)
      break

    node = next
    path.push(token)

    if (node.command) {
      lastMatch = { command: node.command, path: [...path] }
      const nextToken = argv[i + 1]
      if (nextToken === undefined || nextToken.startsWith('-') || !(nextToken in node.subcommands))
        return lastMatch
    }
  }

  return lastMatch
}

function editDistance(a: string, b: string): number {
  const m = a.length