ruby-dev

Issue #6651 has been updated by nobu (Nobuyoshi Nakada).

Description updated


----------------------------------------
Feature #6651:  Re: [ruby-cvs:43389] nobu:r36213 (trunk): popen: shell commands with envvar
https://bugs.ruby-lang.org/issues/6651#change-27485

Author: nobu (Nobuyoshi Nakada)
Status: Open
Priority: Normal
Assignee: 
Category: 
Target version: 


=begin
なかだです。

: At Mon, 25 Jun 2012 17:13:56 +0900,
: Tanaka Akira wrote in [ruby-dev:45812]:
  とりあえず、現在はドキュメントと整合していない状態になっています。

すいません、自分で入れた仕様を忘れてました。

何がしたいかというと環境変数を指定してpopenをしたい、ただしコマ
ンドはArrayにはわかれていない単一の文字列、といったところです。
例えばgitがページャーを実行するのにやっているようなことです。

  IO.popen("LESS=RSs #{ENV['PAGER']}", "w")

今のところenvやexec optionを指定するのはcmdがArrayでないとできま
せんが、Arrayの外に出してしまうというのを考えました。

  IO.popen({"LESS"=>"RSs"}, ENV['PAGER'], "w")
  IO.popen({"LANG"=>"C"}, "ls non-existent", err:[:child, :out])

もちろんArrayを使っても同じです。

  IO.popen({"LANG"=>"C"}, ["ls", "non-existent"], err:[:child, :out])

パッチは https://github.com/ruby/ruby/pull/134 です。

-- 
--- 僕の前にBugはない。
--- 僕の後ろにBugはできる。
    中田 伸悦
=end



-- 
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