yargs/yargs

allow to pass arguments via ENV variables

Open

#856 建立於 2017年4月15日

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 (7 留言) (2 反應) (0 負責人)JavaScript (10,829 star) (1,053 fork)batch import
Help Wantedenhancement

描述

This in relation to this issue http://stackoverflow.com/q/43396569/368691

Basically, sometimes it is very inconvenient to pass arguments to the program. Extending the stack overflow example, I need to redeclare the entire docker CMD just to be able to say that the program needs to execute "passthrough-service":

args: [
  "node",
  "dist/bin/forwardProxy.js",
  "passthrough-service",
  "--listen",
  "http://0.0.0.0:8080",
  "--forward",
  "http://cache-proxy:8080"
]

It would be awesome if I could to:

YARGS_ARGS=passthrough-service node dist/bin/forwardProxy.js

# equivalent to
# node dist/bin/forwardProxy.js passthrough-service

Note: I am well aware that I can pass options via environment variables. This issue is about the CLI arguments ("commands") passed to the program.

貢獻者指南

技術棧
javascript
領域
clitooling
議題類型
feature
難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。
3
預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。
1-3 hours
活動狀態議題目前的可參與程度：新鮮、活躍、陳舊、阻塞或等待維護者輸入。
stale
清晰度議題是否清楚說明預期改動、驗收標準和下一步。
clear
前置要求
yargs basics
新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。
50
研究方向
The issue requests the ability to pass positional arguments via an environment variable (e.g., YARGS ARGS). Existing discussion in the issue suggests parsing this variable before processing argv. Key areas to investigate include yargs' argument parsing flow (likely in lib/usage.js or lib/argsert.js) and how to inject additional arguments from environment variables. No linked PR or assignee was found, so the approach is open for proposal.