docoptはNimでも使えたのお話

import parseopt2

when isMainModule:
  for kind, key, val in getopt() :
    case kind
    of cmdArgument:
      if key == "status":
        echo("status")
      if key == "upload":
        echo("upload")
    of cmdLongOption, cmdShortOption:
      if key == "h" or key == "help":
        echo("help")
      echo "Options > ",key,"=" ,val
    of cmdEnd:
      echo "end"

"""
Overview:
  Client App with ebook-homebrew's rest API
Usage:
  main.py [-h|--help] [-v|--version]
  main.py upload <directory> <extension> [--host <host>] [--port <port>]
  main.py convert <id> <extension> [--host <host>] [--port <port>]
  main.py download <id> <file> [--host <host>] [--port <port>]
Options:
  upload         : upload
  convert        : convert
  <directory>    : directory
  <extension>    : extension
  <id>           : upload_id
  <file>         : filename
  -h, --help     : show this help message and exit
  -v, --version  : show version
  --host         : API server host
  --port         : API server port
"""

import json
import os
import glob
import base64
import requests
from docopt import docopt

__version__ = "2.0.0"


def main(args):
    """Call submodules"""

    if args["upload"]:
        upload(args)
    elif args["convert"]:
        convert(args)
    elif args["download"]:
        download(args)
    elif args["--version"]:
        show_version()

const doc = """
Overview:
  Client App with ebook-homebrew's rest API for Nim
Usage:
  ebook_homebrew_nim_client status
  ebook_homebrew_nim_client convert <directory> <contentType> [-o|--output=<outputFile>]
Options:
  status                Check API Status
  convert               Upload Images, convert to PDF and download result.pdf
  <directory>           Specify directory with in images
  <contentType>         Image content Type such as "image/jpeg"
  -o, --output=<outputFile> Output Filename [default: result.pdf]
"""

import docopt
import ebook_homebrew_nim_clientpkg/submodule

proc main() =
  let args = docopt(doc, version = "0.1.0")
  if args["status"]:
    echo getStatus()
  if args["convert"]:
    let uploadId = extractUploadId(uploadImgSeq(listImgFiles($args["<directory>"]), $args["<contentType>"]))
    discard convertImg(uploadId, $args["<contentType>"])
    if args["--output"]:
      convertPdfDownload(uploadId, $args["--output"])
    else:
      convertPdfDownload(uploadId, "result.pdf")

when isMainModule:
  main()